.include "mspregister.mac" ;
; macexp off ; unrem to hide macro results
-;----------------------------------------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; Vingt fois sur le métier remettez votre ouvrage,
; Polissez-le sans cesse, et le repolissez,
; Ajoutez quelquefois, et souvent effacez.
-; Boileau, L'Art poétique
-;----------------------------------------------------------------------------------------------------------
+; Boileau, L'Art poétique
+;-------------------------------------------------------------------------------
-;===============================================================================================
-;===============================================================================================
-; before assembling or programming you must set DEVICE in param1 and TARGET in param2 (SHIFT+F8)
+;===============================================================================
+;===============================================================================
+; before assembling or programming you must set TARGET in param1 (SHIFT+F8)
; according to the TARGET "switched" below
-; example : your TARGET = MSP_EXP430FR5969 (notice the underscore) ==> DEVICE = MSP430FR5969
-;===============================================================================================
-;===============================================================================================
+;===============================================================================
+;===============================================================================
;-----------------------------------------------------------------------------------------------
-; TARGET configuration SWITCHES ; bytes values are for DTC=1, 8MHz 2457600bds XON/XOFF + RTS
+; TARGET configuration SWITCHES ; bytes values are for DTC=1, 8MHz 2457600 bds XON/XOFF
;-----------------------------------------------------------------------------------------------
; TOTAL - SUM of (INFO+RAM +VECTORS) = MAIN PROG
-;MSP_EXP430FR5739 ; compile for MSP-EXP430FR5739 launchpad ; 4136 - 160 ( 24 + 86 + 50 ) = 3976 bytes
-;MSP_EXP430FR5969 ; compile for MSP-EXP430FR5969 launchpad ; 4102 - 162 ( 24 + 86 + 52 ) = 3940 bytes
-;MSP_EXP430FR5994 ; compile for MSP-EXP430FR5994 launchpad ; 4144 - 186 ( 24 + 86 + 76 ) = 3956 bytes
-;MSP_EXP430FR6989 ; compile for MSP-EXP430FR6989 launchpad ; 4140 - 168 ( 24 + 86 + 58 ) = 3972 bytes
-;MSP_EXP430FR4133 ; compile for MSP-EXP430FR4133 launchpad ; 4174 - 140 ( 24 + 86 + 30 ) = 4034 bytes
-CHIPSTICK_FR2433 ; compile for the "CHIPSTICK" of M. Ken BOAK ; 4070 - 148 ( 24 + 86 + 38 ) = 3928 bytes
+;MSP_EXP430FR5739 ; compile for MSP-EXP430FR5739 launchpad ; 4226 - 160 ( 24 + 86 + 50 ) = 4066 bytes
+;MSP_EXP430FR5969 ; compile for MSP-EXP430FR5969 launchpad ; 4192 - 162 ( 24 + 86 + 52 ) = 4030 bytes
+;MSP_EXP430FR5994 ; compile for MSP-EXP430FR5994 launchpad ; 4234 - 186 ( 24 + 86 + 76 ) = 4048 bytes
+;MSP_EXP430FR6989 ; compile for MSP-EXP430FR6989 launchpad ; 4226 - 168 ( 24 + 86 + 58 ) = 4058 bytes
+;MSP_EXP430FR4133 ; compile for MSP-EXP430FR4133 launchpad ; 4244 - 140 ( 24 + 86 + 30 ) = 4104 bytes
+CHIPSTICK_FR2433 ;; compile for the "CHIPSTICK" of M. Ken BOAK ; 4152 - 148 ( 24 + 86 + 38 ) = 4004 bytes
; choose DTC (Direct Threaded Code) model, if you don't know, choose 1
DTC .equ 1 ; DTC model 1 : DOCOL = CALL rDOCOL 14 cycles 1 word shortest DTC model
THREADS .equ 16 ; 1, 4, 8, 16, 32 search entries in dictionnary. 16 is the good compromise between speed and size.
; +40, +66, +90, +154 bytes
-TERMINALBAUDRATE .equ 3000000 ; choose value considering the frequency and the UART2USB bridge, see explanations below.
+TERMINALBAUDRATE .equ 115200 ; choose value considering the frequency and the UART2USB bridge, see explanations below.
TERMINALXONXOFF ; to enable XON/XOFF flow control (PL2303TA/HXD, CP2102)
-TERMINALCTSRTS ; to enable hardware flow control with RTS (PL2303TA/HXD, FT232RL)
+TERMINALCTSRTS ; + 18 bytes to enable hardware flow control with RTS (PL2303TA/HXD, FT232RL)
.include "Target.inc" ; to define target config: I/O, memory, SFR, vectors, TERMINAL eUSCI, SD_Card eUSCI, LF_XTAL,
-;-----------------------------------------------------------------------
-; KERNEL ADD-ON SWITCHES ;
-;-----------------------------------------------------------------------
-MSP430ASSEMBLER ;; + 1896 bytes : add embedded assembler with TI syntax; without, you can do all but all much more slowly...
-;SD_CARD_LOADER ; + 1754 bytes : to LOAD source files from SD_card
-;SD_CARD_READ_WRITE ; + 1162 bytes : to read, create, write and del files + source files direct copy from PC to SD_Card
-;VOCABULARY_SET ; + 108 bytes : add VOCABULARY FORTH ASSEMBLER ALSO PREVIOUS ONLY DEFINITIONS (FORTH83, not ANSI)
-;LOWERCASE ; + 30 bytes : enable to EMIT strings in lowercase.
-;BACKSPACE_ERASE ; + 24 bytes : replace BS by ERASE, for visual comfort
-
-;-------------------------------------------------------------------------------------------------
-; OPTIONAL KERNELL ADD-ON SWITCHES, because their source file can be downloaded later >----------------+
-;------------------------------------------------------------------------------------------------- |
-; v
-;UTILITY ; + 404 bytes : add .S WORDS U.R DUMP ? UTILITY.f
-;SD_TOOLS ; + 126 bytes for trivial DIR, FAT, CLUSTER and SECTOR view, adds UTILITY SD_TOOLS.f
-;ANS_CORE_COMPLIANT ; + 876 bytes : required to pass coretest.4th ; (includes items below) COMPxMPY.f (x = H or S)
+;-------------------------------------------------------------------------------
+; KERNEL ADD-ON SWITCHES
+;-------------------------------------------------------------------------------
+CONDCOMP ;; + 354 bytes : add conditionnal compilation : [UNDEFINED] [DEFINED] [IF] [ELSE] [THEN], strongly recommended.
+MSP430ASSEMBLER ;; + 1894 bytes : add embedded assembler with TI syntax; without, you can do all but all much more slowly...
+;SD_CARD_LOADER ; + 1816 bytes : to LOAD source files from SD_card
+;SD_CARD_READ_WRITE ; + 1190 bytes : to read, create, write and del files + source files direct copy from PC to SD_Card
+;BOOTLOADER ; + 52 bytes : add to <reset> a bootstrap to SD_CARD\BOOT.4TH.
+;QUIETBOOT ; + 2 bytes : to perform bootload without displaying.
+VOCABULARY_SET ;; + 108 bytes : add VOCABULARY FORTH ASSEMBLER ALSO PREVIOUS ONLY DEFINITIONS (FORTH83, not ANSI)
+LOWERCASE ;; + 30 bytes : enable to write strings in lowercase.
+BACKSPACE_ERASE ;; + 24 bytes : replace BS by ERASE, for visual comfort
+
+;-------------------------------------------------------------------------------
+; OPTIONAL KERNEL ADD-ON SWITCHES (can be downloaded later) >------------------+
+; Tip: when switched ON below, ADD-ONs become protected against WIPE and Deep Reset... |
+;------------------------------------------------------------------------------- v
+UTILITY ;; + 426/508 bytes : add .S .RS WORDS U.R DUMP ? UTILITY.f
+FIXPOINT ;; + 40 bytes : add fixed point S15Q16 conversion words F#, F#S, F. FIXPOINT.f
+;SD_TOOLS ; + 126 bytes for trivial DIR, FAT, CLUSTER and SECTOR view, adds UTILITY SD_TOOLS.f
+;ANS_CORE_COMPLIANT ; + 876 bytes : required to pass coretest.4th ; (includes items below) COMPxMPY.f (x = H or S)
;ARITHMETIC ; + 358 bytes : add S>D M* SM/REM FM/MOD * /MOD / MOD */MOD /MOD */
;DOUBLE ; + 130 bytes : add 2@ 2! 2DUP 2SWAP 2OVER
;ALIGNMENT ; + 24 bytes : add ALIGN ALIGNED
;PORTABILITY ; + 46 bytes : add CHARS CHAR+ CELLS CELL+
-
-;=================================================================
+;===============================================================================
; XON/XOFF control flow configuration ; up to 322kBd/MHz with ECHO
-;=================================================================
+;===============================================================================
; Only two usb2uart bridges correctly handle XON / XOFF: cp2102 and pl2303.
; don't forget : save new TERATERM configuration !
-;======================================================================
+;===============================================================================
; Hardware control flow configuration: RTS is wired on UART2USB CTS pin
-;======================================================================
+;===============================================================================
; Launchpad <-> UARTtoUSB
; RX <-- TX
; UARTtoUSB module with FTDI FT232RL (FT230X don't work correctly)
-; --------------------------------------------------------------------
+; ------------------------------------------------------------------------------
; WARNING ! buy a FT232RL module with a switch 5V/3V3 and select 3V3 !
-; --------------------------------------------------------------------
+; ------------------------------------------------------------------------------
; 9600,19200,38400,57600,115200 (500kHz)
; + 230400 (1MHz)
; + 460800 (2MHz)
; don't forget : save new TERATERM configuration !
-; ----------------------------------------------------------------------
+; ------------------------------------------------------------------------------
; DTCforthMSP430FR5xxx Init vocabulary pointers:
-; ----------------------------------------------------------------------
+; ------------------------------------------------------------------------------
.IF THREADS = 1
.include "ForthThreads.mac"
.ENDIF
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; DTCforthMSP430FR5xxx RAM memory map:
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; name words ; comment
;PAD ; ----- RAMSTART + $E2
; |
-PAD_SIZE .equ 84 ; | grows up (ans spec. : PAD >= 84 chars)
+PAD_LEN .equ 84 ; | grows up (ans spec. : PAD >= 84 chars)
; |
; v
- ; ----- RAMSTART + $136
-;TIB ; ----- RAMSTART + $138
+;TIB ; ----- RAMSTART + $136
; |
-TIB_SIZE .equ 80 ; | grows up (ans spec. : TIB >= 80 chars)
+TIB_LEN .equ 82 ; | grows up (ans spec. : TIB >= 80 chars)
; |
; v
+;HOLDS_ORG ; ------RAMSTART + $188
; ^
; |
HOLD_SIZE .equ 34 ; | grows down (ans spec. : HOLD_SIZE >= (2*n) + 2 char, with n = 16 bits/cell
LEAVEPTR .equ LSTACK ; Leave-stack pointer
PSTACK .equ LSTACK+(LSTACK_SIZE*2)+(PSTACK_SIZE*2)
RSTACK .equ PSTACK+(RSTACK_SIZE*2)
-PAD .equ RSTACK+2
-TIB .equ PAD+PAD_SIZE+2
-BASE_HOLD .equ TIB+TIB_SIZE+HOLD_SIZE
+PAD_ORG .equ RSTACK+2
+TIB_ORG .equ PAD_ORG+PAD_LEN
+HOLDS_ORG .equ TIB_ORG+TIB_LEN
+BASE_HOLD .equ HOLDS_ORG+HOLD_SIZE
; ----------------------------------
HP .word 0 ; HOLD ptr
CAPS .word 0
-LAST_NFA .word 0 ; NFA, VOC_PFA, LFA, CFA, CSP of last created word
-LAST_THREAD .word 0
+LAST_NFA .word 0 ; NFA, VOC_PFA, LFA, CFA, PSP of last created word
+LAST_THREAD .word 0 ; used by QREVEAL
LAST_CFA .word 0
-LAST_CSP .word 0
+LAST_PSP .word 0
STATE .word 0 ; Interpreter state
ASM_CURRENT .word 0 ; preserve CURRENT during create assembler words
OPCODE .word 0 ; OPCODE adr
BUFEND .equ BUFFER + 200h ; 512bytes
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; INFO(DCBA) >= 256 bytes memory map:
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
.org INFOSTART
.ENDIF
HECTOBAUDS .word TERMINALBAUDRATE/100 ; user use
-SAVE_SYSRSTIV .word -3 ; to perform DEEP_RST after FastForth compiling
+SAVE_SYSRSTIV .word 05 ; value to identify FAST FORTH first start after core recompiling
LPM_MODE .word CPUOFF+GIE ; LPM0 is the default mode
INIDP .word ROMDICT ; define RST_STATE
INIVOC .word lastvoclink ; define RST_STATE
; ------------------------------
; VARIABLES that could be in RAM
; ------------------------------
- .IFNDEF RAM_1K ; if RAM = 1K the variables below stay in FRAM
+ .IFNDEF RAM_1K ; if RAM = 1K (FR57xx) the variables below stay in FRAM
.org BUFEND ; else in RAM beyond BUFFER
.ENDIF
; ---------------------------------------
SAVEtsLEN .word 0 ; of previous ACCEPT
SAVEtsPTR .word 0 ; of previous ACCEPT
-MemSectorL .word 0 ;
-MemSectorH .word 0 ;
+ .word 0 ;
+ .word 0 ;
.word 0
; ---------------------------------------
; =-1 : LOAD"ed file (source file)
; offset values
-HDLW_PrevHDL .equ 0 ; previous handle ; used by LOAD"
+HDLW_PrevHDL .equ 0 ; previous handle
HDLB_Token .equ 2 ; token
HDLB_ClustOfst .equ 3 ; Current sector offset in current cluster (Byte)
HDLL_DIRsect .equ 4 ; Dir SectorL
HDLW_BUFofst .equ 22 ; BUFFER offset ; used by LOAD"
- .IFDEF RAM_1K ; RAM_Size = 1k
+ .IFDEF RAM_1K ; RAM_Size = 1k: due to the lack of RAM PAD is SDIB and LEAVE stack is LOAD stack
+
+SDIB .equ PAD_ORG
+LOADPTR .equ LEAVEPTR
FirstHandle
HandleMax .equ 7
HandleLenght .equ 24
.org HandleEnd
- .ELSEIF ; RAM_Size >= 2k
+ .ELSEIF ; RAM_Size > 1k
+
FirstHandle
HandleMax .equ 8
HandleLenght .equ 24
HandleEnd .equ FirstHandle+handleMax*HandleLenght
.org HandleEnd
-SDIB
-SDIB_SIZE .equ 84
-
- .org SDIB+SDIB_SIZE
-
- .ENDIF ; RAM_Size
-
- .ENDIF ; SD_CARD_LOADER
-
-SD_END_DATA ; used to init SD_ram area
-; ----------------------------------------------------------------------
-; DTCforthMSP430FR5xxx REGISTER USAGE
-; ----------------------------------------------------------------------
- .SWITCH DTC
- .CASE 1 ; DOCOL = CALL rDOCOL
+LOAD_STACK .equ HandleEnd
+LOADPTR .equ LOAD_STACK
+LOADSTACK_SIZE .equ HandleMax+1 ; make room for LOADPTR and for 8 cells LOADSTACK
+LoadStackEnd .equ LOAD_STACK+LOADSTACK_SIZE*2
-RSP .reg SP ; RSP = Return Stack Pointer (return stack)
-; DOxxx registers ; must be saved before use and restored after use
-rDODOES .reg r4
-rDOCON .reg r5
-rDOVAR .reg r6
-rDOCOL .reg R7
+ .org LoadStackEnd
+SDIB
+SDIB_LEN .equ 84
-; Scratch registers
-Y .reg R8
-X .reg R9
-W .reg R10
-T .reg R11
-S .reg R12
+ .org SDIB+SDIB_LEN
-; Forth virtual machine
-IP .reg R13 ; interpretative pointer
-TOS .reg R14 ; first PSP cell
-PSP .reg R15 ; PSP = Parameters Stack Pointer (stack data)
+ .ENDIF ; RAM_Size
- .CASE 2 ; DOCOL = PUSH IP + CALL rEXIT
+ .ENDIF ; SD_CARD_LOADER
-RSP .reg SP ; RSP = Return Stack Pointer (return stack)
+SD_END_DATA ; used by SD_INIT to init SD_ram area
-; DOxxx registers ; must be saved before use and restored after use
-rDODOES .reg r4
-rDOCON .reg r5
-rDOVAR .reg r6
-rEXIT .reg R7
+;-------------------------------------------------------------------------------
+; DTCforthMSP430FR5xxx program (FRAM) memory
+;-------------------------------------------------------------------------------
-; Scratch registers
-Y .reg R8
-X .reg R9
-W .reg R10
-T .reg R11
-S .reg R12
+ .org PROGRAMSTART
-; Forth virtual machine
-IP .reg R13 ; interpretative pointer
-TOS .reg R14 ; first PSP cell
-PSP .reg R15 ; PSP = Parameters Stack Pointer (stack data)
+;-------------------------------------------------------------------------------
+; DEFINING EXECUTIVE WORDS - DTC model
+;-------------------------------------------------------------------------------
- .CASE 3 ; INLINED DOCOL
+;-------------------------------------------------------------------------------
+; very nice FAST FORTH added feature:
+;-------------------------------------------------------------------------------
+; as IP is always computed from the PC value, we can place low level to high level
+; switches "COLON" or "LO2HI" anywhere in a word, i.e. not only at its beginning
+; as ITC competitors.
+;-------------------------------------------------------------------------------
-RSP .reg SP ; RSP = Return Stack Pointer (return stack)
+RSP .reg R1 ; RSP = Return Stack Pointer (return stack)
; DOxxx registers ; must be saved before use and restored after use
rDODOES .reg r4
rDOVAR .reg r6
; Scratch registers
-R .reg R7
Y .reg R8
X .reg R9
W .reg R10
TOS .reg R14 ; first PSP cell
PSP .reg R15 ; PSP = Parameters Stack Pointer (stack data)
- .ENDCASE ; DTC
-
-; ----------------------------------------------------------------------
-; DTCforthMSP430FR5xxx program (FRAM) memory
-; ----------------------------------------------------------------------
-
- .org PROGRAMSTART
-
-; ----------------------------------------------------------------------
-; DEFINING EXECUTIVE WORDS - DTC model
-; ----------------------------------------------------------------------
-
-; ----------------------------------------------------------------------
-; very nice FAST FORTH added feature:
-; ----------------------------------------------------------------------
-; as IP is calculated from the PC value we can place the low to high level
-; switches "COLON" or "LO2HI" anywhere in a word, i.e. not only at its beginning.
-; ----------------------------------------------------------------------
-
-
- .SWITCH DTC
- .CASE 1 ; DOCOL = CALL rDOCOL
-
mNEXT .MACRO ; return for low level words (written in assembler)
MOV @IP+,PC ; 4 fetch code address into PC, IP=PFA
.ENDM ; 4 cycles,1word = ITC -2cycles -1 word
.word $+2 ; 0 cycle
.ENDM ; 0 cycle, 1 word
-ASMtoFORTH .MACRO ; compiled by LO2HI
- CALL #EXIT ;
- .ENDM ; 2 words, 10~
-DOCOL1 .equ 1287h ; 4 CALL R7 ; [R7] is set as xdocol by COLD
-mDOCOL .MACRO ; compiled by : and by colon
- CALL R7 ;
- .ENDM ; 14~ 1 word
+ .SWITCH DTC
+;-------------------------------------------------------------------------------
+ .CASE 1 ; DOCOL = CALL rDOCOL
+;-------------------------------------------------------------------------------
+
+rDOCOL .reg R7 ; COLD defines xdocol as R7 content
-xdocol ; 4 for CALL rDOCOL
- MOV @RSP+,W ; 2
+xdocol MOV @RSP+,W ; 2
PUSH IP ; 3 save old IP on return stack
MOV W,IP ; 1 set new IP to PFA
MOV @IP+,PC ; 4 = NEXT
- ; 14 = ITC +4
+ ; 10 cycles
- .CASE 2 ; DOCOL = PUSH IP + CALL rEXIT
+ASMtoFORTH .MACRO ; compiled by LO2HI
+ CALL #EXIT ; 2 words, 10 cycles
+ .ENDM ;
-mNEXT .MACRO
- MOV @IP+,PC ; 4 fetch code address into PC, IP=PFA
- .ENDM ; 4cycles,1word = ITC -2cycles -1 word
+mDOCOL .MACRO ; compiled by : and by colon
+ CALL R7 ; 1 word, 14 cycles (CALL included) = ITC+4
+ .ENDM ;
-NEXT .equ 4D30h ; 4 MOV @IP+,PC
+DOCOL1 .equ 1287h ; 4 CALL R7
-FORTHtoASM .MACRO ; compiled by HI2LO
- .word $+2 ; 0 cycle
- .ENDM ; 0 cycle, 1 word
+;-------------------------------------------------------------------------------
+ .CASE 2 ; DOCOL = PUSH IP + CALL rEXIT
+;-------------------------------------------------------------------------------
+
+rEXIT .reg R7 ; COLD defines EXIT as R7 content
ASMtoFORTH .MACRO ; compiled by LO2HI
- CALL rEXIT ; CALL EXIT
- .ENDM ; 10 cycles, 1 word
+ CALL rEXIT ; 1 word, 10 cycles
+ .ENDM ;
mDOCOL .MACRO ; compiled by : and by COLON
PUSH IP ; 3
- CALL rEXIT ; 10 CALL EXIT
- .ENDM ; 13 cycles (ITC+3), two words
+ CALL rEXIT ; 10
+ .ENDM ; 2 words, 13 cycles = ITC+3
DOCOL1 .equ 120Dh ; 3 PUSH IP
-DOCOL2 .equ 1287h ; 4 CALL rEXIT ; [rEXIT] is set as EXIT by COLD
+DOCOL2 .equ 1287h ; 4 CALL rEXIT
+;-------------------------------------------------------------------------------
.CASE 3 ; inlined DOCOL
+;-------------------------------------------------------------------------------
-mNEXT .MACRO ; return for low level words (written in assembler)
- MOV @IP+,PC ; 4 fetch code address into PC, IP=PFA
- .ENDM ; 4 cycles,1word = ITC -2cycles -1 word
-
-NEXT .equ 4D30h ; 4 MOV @IP+,PC
-
-FORTHtoASM .MACRO ; compiled by HI2LO
- .word $+2 ; 0 cycle
- .ENDM ; 0 cycle, 1 word
+R .reg R7 ; Scratch register
ASMtoFORTH .MACRO ; compiled by LO2HI
MOV PC,IP ; 1
MOV PC,IP ; 1
ADD #4,IP ; 1
MOV @IP+,PC ; 4 NEXT
- .ENDM ; 9 cycles (ITC -1), 4 words
+ .ENDM ; 4 words, 9 cycles (ITC-1)
DOCOL1 .equ 120Dh ; 3 PUSH IP
DOCOL2 .equ 400Dh ; 1 MOV PC,IP
.ENDCASE ; DTC
+;-------------------------------------------------------------------------------
; mDOVAR leave on parameter stack the PFA of a VARIABLE definition
+;-------------------------------------------------------------------------------
mDOVAR .MACRO ; compiled by VARIABLE
- CALL rDOVAR ; CALL RFROM
- .ENDM ; 14 cycles (ITC+4), 1 word
+ CALL rDOVAR ; 1 word, 14 cycles (ITC+4)
+ .ENDM ;
-DOVAR .equ 1286h ; 4 CALL rDOVAR ; [rDOVAR] is set as RFROM by COLD
+DOVAR .equ 1286h ; CALL rDOVAR ; [rDOVAR] is defined as RFROM by COLD
+;-------------------------------------------------------------------------------
; mDOCON leave on parameter stack the [PFA] of a CONSTANT definition
+;-------------------------------------------------------------------------------
mDOCON .MACRO ; compiled by CONSTANT
- CALL rDOCON ; CALL xdocon
- .ENDM ; 16 cycles (ITC+4), 1 word
+ CALL rDOCON ; 1 word, 16 cycles (ITC+4)
+ .ENDM ;
-DOCON .equ 1285h ; 4 CALL rDOCON ; [rDOCON] is set as xdocon by COLD
+DOCON .equ 1285h ; 4 CALL rDOCON ; [rDOCON] is defined as xdocon by COLD
xdocon ; -- constant ; 4 for CALL rDOCON
- SUB #2,PSP ; 1 make room on stack
- MOV TOS,0(PSP) ; 3 push first PSP cell
- MOV @RSP+,TOS ; 2 TOS=CONSTANT address
- MOV @TOS,TOS ; 2 TOS=CONSTANT
+ SUB #2,PSP ; 1
+ MOV TOS,0(PSP) ; 3 save TOS on parameters stack
+ MOV @RSP+,TOS ; 2 TOS = CFA address of master word CONSTANT
+ MOV @TOS,TOS ; 2 TOS = CONSTANT value
MOV @IP+,PC ; 4 execute next word
; 16 = ITC (+4)
-; mDODOES leave on parameter stack the PFA of a CREATE definition
+;-------------------------------------------------------------------------------
+; mDODOES leave on parameter stack the PFA of a CREATE definition and execute Master word
+;-------------------------------------------------------------------------------
mDODOES .MACRO ; compiled by DOES>
CALL rDODOES ; CALL xdodoes
- .ENDM ; 19 cycles (ITC-2), 1 word
+ .ENDM ; 1 word, 19 cycles (ITC-2)
-DODOES .equ 1284h ; 4 CALL rDODOES ; [rDODOES] is set as xdodoes by COLD
+DODOES .equ 1284h ; 4 CALL rDODOES ; [rDODOES] is defind as xdodoes by COLD
xdodoes ; -- a-addr ; 4 for CALL rDODOES
SUB #2,PSP ; 1
MOV TOS,0(PSP) ; 3 save TOS on parameters stack
MOV @RSP+,TOS ; 2 TOS = CFA address of master word, i.e. address of its first cell after DOES>
PUSH IP ; 3 save IP on return stack
- MOV @TOS+,IP ; 2 IP = CFA of Master word, TOS = BODY of created word
+ MOV @TOS+,IP ; 2 IP = CFA of Master word, TOS = BODY address of created word
MOV @IP+,PC ; 4 Execute Master word
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; INTERPRETER LOGIC
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/EXIT
-;C EXIT -- exit a colon definition; CALL #EXIT performs ASMtoFORTH
+;C EXIT -- exit a colon definition; CALL #EXIT performs ASMtoFORTH (10 cycles)
+; JMP #EXIT performs EXIT
FORTHWORD "EXIT"
EXIT: MOV @RSP+,IP ; 2 pop previous IP (or next PC) from return stack
MOV @IP+,PC ; 4 = NEXT
MOV @IP+,PC ; 4 NEXT
; 11 = ITC - 2
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; STACK OPERATIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/DUP
;C DUP x -- x x duplicate top of stack
DROP: MOV @PSP+,TOS ; 2
mNEXT ; 4
+;https://forth-standard.org/standard/core/NIP
+;C NIP x1 x2 -- x2 Drop the first item below the top of stack
+ FORTHWORD "NIP"
+NIP: ADD #2,PSP ; 1
+ mNEXT ; 4
+
;https://forth-standard.org/standard/core/SWAP
;C SWAP x1 x2 -- x2 x1 swap top two items
FORTHWORD "SWAP"
;https://forth-standard.org/standard/core/OVER
;C OVER x1 x2 -- x1 x2 x1
FORTHWORD "OVER"
-OVER: SUB #2,PSP ; 2 -- x1 x x2
- MOV TOS,0(PSP) ; 3 -- x1 x2 x2
- MOV 2(PSP),TOS ; 2 -- x1 x2 x1
+OVER: MOV TOS,-2(PSP) ; 3 -- x1 (x2) x2
+ MOV @PSP,TOS ; 2 -- x1 (x2) x1
+ SUB #2,PSP ; 2 -- x1 x2 x1
mNEXT ; 4
;https://forth-standard.org/standard/core/ROT
MOV @RSP,TOS
mNEXT
-;;Z SP@ -- a-addr get data stack pointer, must leave PSTACK value if stack empty
-; FORTHWORD "SP@"
-SPFETCH: MOV TOS,-2(PSP) ;3
- MOV PSP,TOS ;1
- SUB #2,PSP ;1 post decrement stack...
- mNEXT
-
;https://forth-standard.org/standard/core/DEPTH
;C DEPTH -- +n number of items on stack, must leave 0 if stack empty
FORTHWORD "DEPTH"
RRA TOS ; TOS/2 --> TOS
mNEXT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; MEMORY OPERATIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/Fetch
;C @ a-addr -- x fetch cell from memory
FETCH: MOV @TOS,TOS
mNEXT
-
;https://forth-standard.org/standard/core/Store
;C ! x a-addr -- store cell in memory
FORTHWORD "!"
;https://forth-standard.org/standard/core/CFetch
;C C@ c-addr -- char fetch char from memory
FORTHWORD "C@"
-CFETCH: MOV.B @TOS,TOS
- mNEXT
-
+CFETCH: MOV.B @TOS,TOS ;2
+ mNEXT ;4
;https://forth-standard.org/standard/core/CStore
;C C! char c-addr -- store char in memory
FORTHWORD "C!"
-CSTORE: MOV @PSP+,W ;2
- MOV.B W,0(TOS) ;3
+CSTORE: MOV.B @PSP+,0(TOS);4
+ ADD #1,PSP ;1
MOV @PSP+,TOS ;2
mNEXT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; ARITHMETIC OPERATIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/Plus
;C + n1/u1 n2/u2 -- n3/u3 add n1+n2
mNEXT
;https://forth-standard.org/standard/core/Minus
-;C - n1/u1 n2/u2 -- n3/u3 subtract n1-n2
+;C - n1/u1 n2/u2 -- n3/u3 n3 = n1-n2
FORTHWORD "-"
-MINUS: MOV @PSP+,W ; 2
- SUB TOS,W ; 1
- MOV W,TOS ; 1
+MINUS: SUB @PSP+,TOS ;2 -- n2-n1
+NEGATE: XOR #-1,TOS ;1
+ONEPLUS: ADD #1,TOS ;1 -- n3 = -(n2-n1)
mNEXT
;https://forth-standard.org/standard/core/AND
;https://forth-standard.org/standard/core/NEGATE
;C NEGATE x1 -- x2 two's complement
FORTHWORD "NEGATE"
-NEGATE: XOR #-1,TOS
- ADD #1,TOS
- mNEXT
+ JMP NEGATE
;https://forth-standard.org/standard/core/ABS
;C ABS n1 -- +n2 absolute value
JN NEGATE
mNEXT
-; ----------------------------------------------------------------------
+;https://forth-standard.org/standard/double/DABS
+;C DABS d1 -- |d1| absolute value
+ FORTHWORD "DABS"
+DABBS: AND #-1,TOS ; clear V, set N
+ JGE DABBSEND ; JMP if positive
+DNEGATE: XOR #-1,0(PSP)
+ XOR #-1,TOS
+ ADD #1,0(PSP)
+ ADDC #0,TOS
+DABBSEND mNEXT
+
+;-------------------------------------------------------------------------------
; COMPARAISON OPERATIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/ZeroEqual
;C 0= n/u -- flag return true if TOS=0
;https://forth-standard.org/standard/core/Zeroless
;C 0< n -- flag true if TOS negative
FORTHWORD "0<"
-ZEROLESS: ADD TOS,TOS ; set carry if TOS negative
- SUBC TOS,TOS ; TOS=-1 if carry was clear
- XOR #-1,TOS ; TOS=-1 if carry was set
+ZEROLESS: ADD TOS,TOS ;1 set carry if TOS negative
+ SUBC TOS,TOS ;1 TOS=-1 if carry was clear
+ XOR #-1,TOS ;1 TOS=-1 if carry was set
mNEXT
+;https://forth-standard.org/standard/core/Zeromore
+;C 0> n -- flag true if TOS positive
+ FORTHWORD "0>"
+ZEROMORE: CMP #1,TOS
+ JGE TOSTRUE
+ JMP TOSFALSE
+
;https://forth-standard.org/standard/core/Equal
;C = x1 x2 -- flag test x1=x2
FORTHWORD "="
-EQUAL: SUB @PSP+,TOS ; 2
- JNZ TOSFALSE ; 2 --> +4
-TOSTRUE MOV #-1,TOS ; 2 (MOV @R3+,TOS)
- mNEXT ; 4
+EQUAL: SUB @PSP+,TOS ;2
+ JNZ TOSFALSE ;2 --> +4
+TOSTRUE MOV #-1,TOS ;1
+ mNEXT ;4
;https://forth-standard.org/standard/core/less
;C < n1 n2 -- flag test n1<n2, signed
FORTHWORD "<"
-LESS: MOV @PSP+,W ; 2 W=n1
- SUB TOS,W ; 1 W=n1-n2 flags set
- JL TOSTRUE ; 2
-TOSFALSE MOV #0,TOS ; 1
- mNEXT ; 4
+LESS: MOV @PSP+,W ;2 W=n1
+ SUB TOS,W ;1 W=n1-n2 flags set
+ JL TOSTRUE ;2
+TOSFALSE MOV #0,TOS ;1
+ mNEXT ;4
;https://forth-standard.org/standard/core/more
;C > n1 n2 -- flag test n1>n2, signed
FORTHWORD ">"
-GREATER: SUB @PSP+,TOS ; 2 TOS=n2-n1
- JL TOSTRUE ; 2
- MOV #0,TOS ; 1
- mNEXT ; 4
+GREATER: SUB @PSP+,TOS ;2 TOS=n2-n1
+ JL TOSTRUE ;2
+ MOV #0,TOS ;1
+ mNEXT ;4
;https://forth-standard.org/standard/core/Uless
;C U< u1 u2 -- flag test u1<u2, unsigned
FORTHWORD "U<"
-ULESS: MOV @PSP+,W ; 2
- SUB TOS,W ; 1 u1-u2 in W, cy clear if borrow
- JNC TOSTRUE ; 2
- MOV #0,TOS ; 1
- mNEXT ; 4
+ULESS: MOV @PSP+,W ;2
+ SUB TOS,W ;1 u1-u2 in W, carry clear if borrow
+ JNC TOSTRUE ;2
+ MOV #0,TOS ;1
+ mNEXT ;4
-; ----------------------------------------------------------------------
-; BRANCH and LOOP OPERATIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+; BRANCH and LOOP OPERATORS
+;-------------------------------------------------------------------------------
;Z branch -- branch always
-; FORTHWORD "BRANCH"
BRAN: MOV @IP,IP ; 2
mNEXT ; 4
;Z ?branch x -- branch if TOS = zero
-; FORTHWORD "?BRANCH"
QBRAN: CMP #0,TOS ; 1 test TOS value
- MOV @PSP+,TOS ; 2 pop new TOS value (doesn't change flags)
+QBRAN1 MOV @PSP+,TOS ; 2 pop new TOS value (doesn't change flags)
JZ bran ; 2 if TOS was zero, take the branch = 11 cycles
ADD #2,IP ; 1 else skip the branch destination
mNEXT ; 4 ==> branch not taken = 10 cycles
+;Z 0?branch x -- branch if TOS <> zero
+QZBRAN: SUB #1,TOS ; 1 borrow (clear cy) if TOS was 0
+ SUBC TOS,TOS ; 1 TOS=-1 if borrow was set
+ JMP QBRAN1 ; 2
+
+
;Z (do) n1|u1 n2|u2 -- R: -- sys1 sys2 run-time code for DO
; n1|u1=limit, n2|u2=index
-; FORTHWORD "(DO)"
-
xdo: MOV #8000h,X ;2 compute 8000h-limit "fudge factor"
SUB @PSP+,X ;2
MOV TOS,Y ;1 loop ctr = index+fudge
; run-time code for +LOOP
; Add n to the loop index. If loop terminates, clean up the
; return stack and skip the branch. Else take the inline branch.
-; FORTHWORD "(+LOOP)"
-
xploop: ADD TOS,0(RSP) ;4 increment INDEX by TOS value
MOV @PSP+,TOS ;2 get new TOS, doesn't change flags
xloopnext BIT #100h,SR ;2 is overflow bit set?
; Add 1 to the loop index. If loop terminates, clean up the
; return stack and skip the branch. Else take the inline branch.
; Note that LOOP terminates when index=8000h.
-; FORTHWORD "(LOOP)"
-
xloop: ADD #1,0(RSP) ;4 increment INDEX
JMP xloopnext ;2
+;https://forth-standard.org/standard/core/UNLOOP
;C UNLOOP -- R: sys1 sys2 -- drop loop parms
FORTHWORD "UNLOOP"
UNLOOP: JMP UNXLOOP
+;https://forth-standard.org/standard/core/I
;C I -- n R: sys1 sys2 -- sys1 sys2
;C get the innermost loop index
FORTHWORD "I"
-II: SUB #2,PSP ; make room in TOS
- MOV TOS,0(PSP)
- MOV @RSP,TOS ; index = loopctr - fudge
- SUB 2(RSP),TOS
- mNEXT
+II: SUB #2,PSP ;1 make room in TOS
+ MOV TOS,0(PSP) ;3
+ MOV @RSP,TOS ;2 index = loopctr - fudge
+ SUB 2(RSP),TOS ;3
+ mNEXT ;4 13~
+;https://forth-standard.org/standard/core/J
;C J -- n R: 4*sys -- 4*sys
;C get the second loop index
FORTHWORD "J"
SUB 6(RSP),TOS
mNEXT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; SYSTEM VARIABLES & CONSTANTS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+
+;https://forth-standard.org/standard/core/PAD
+; PAD -- pad address
+ FORTHWORD "PAD"
+PAD mDOCON
+ .WORD PAD_ORG
+
+; TIB -- terminal input buffer address
+ FORTHWORD "TIB"
+TIB mDOCON
+ .WORD TIB_ORG ; constant, may be modified by IS
+
+; CPL -- terminal input buffer lenght (CPL = Chars Per Line)
+ FORTHWORD "CPL"
+CPL mDOCON
+ .WORD TIB_LEN ; constant, may be modified by IS
;https://forth-standard.org/standard/core/toIN
;C >IN -- a-addr holds offset in input stream
FBLANK: mDOCON
.word 32
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; MULTIPLY
-; ----------------------------------------------------------------------
-
- .IFNDEF MPY ; if no hardware MPY
-
-; T.I. SIGNED MULTIPLY SUBROUTINE: U1 x U2 -> Ud
-
-;https://forth-standard.org/standard/core/UMTimes
-;C UM* u1 u2 -- ud unsigned 16x16->32 mult.
- FORTHWORD "UM*"
-UMSTAR: MOV @PSP,S ; U1 = MULTIPLICANDlo
- MOV #0,W ; 0 -> created MULTIPLICANDhi
- MOV #0,Y ; 0 -> created RESULTlo
- MOV #0,T ; 0 -> created RESULThi
- MOV #1,X ; BIT TEST REGISTER
-UMSTARLOOP BIT X,TOS ;1 TEST ACTUAL BIT MULTIPLIER
- JZ UMSTARNEXT ;2 IF 0: DO NOTHING
- ADD S,Y ;1 IF 1: ADD MULTIPLICAND TO RESULT
- ADDC W,T ;1
-UMSTARNEXT ADD S,S ;1 (RLA LSBs) MULTIPLICAND x 2
- ADDC W,W ;1 (RLC MSBs)
- ADD X,X ;1 (RLA) NEXT BIT TO TEST
- JNC UMSTARLOOP ;2 IF BIT IN CARRY: FINISHED 10~ loop
- MOV Y,0(PSP) ; low result on stack
- MOV T,TOS ; high result in TOS
- mNEXT
+;-------------------------------------------------------------------------------
- .ENDIF ; hardware MPY
-
-; ----------------------------------------------------------------------------------------
-; ANS complement OPTION that include ALIGNMENT, PORTABILITY, ARITHMETIC and DOUBLE options
-; ----------------------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+; ANS complement OPTION
+;-------------------------------------------------------------------------------
.IFDEF ANS_CORE_COMPLIANT
.include "ADDON\ANS_COMPLEMENT.asm"
-; ----------------------------------------------------------------------------------------
-
.ELSEIF
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; ALIGNMENT OPERATORS OPTION
-; ----------------------------------------------------------------------
- .IFDEF ALIGNMENT ; included in ANS_COMPLEMENT
- .include "ADDON\ALIGNMENT.asm"
- .ENDIF ; ALIGNMENT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+ .IFDEF ALIGNMENT ; included in ANS_COMPLEMENT
+ .include "ADDON\ALIGNMENT.asm"
+ .ENDIF ; ALIGNMENT
+
+;-------------------------------------------------------------------------------
; PORTABILITY OPERATORS OPTION
-; ----------------------------------------------------------------------
- .IFDEF PORTABILITY
- .include "ADDON\PORTABILITY.asm"
- .ENDIF ; PORTABILITY
-; ----------------------------------------------------------------------
-; ARITHMETIC OPERATORS OPTION
-; ----------------------------------------------------------------------
- .IFDEF ARITHMETIC ; included in ANS_COMPLEMENT
- .include "ADDON\ARITHMETIC.asm"
- .ENDIF ; ARITHMETIC
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+ .IFDEF PORTABILITY
+ .include "ADDON\PORTABILITY.asm"
+ .ENDIF ; PORTABILITY
+
+;-------------------------------------------------------------------------------
; DOUBLE OPERATORS OPTION
-; ----------------------------------------------------------------------
- .IFDEF DOUBLE ; included in ANS_COMPLEMENT
- .include "ADDON\DOUBLE.asm"
- .ENDIF ; DOUBLE
+;-------------------------------------------------------------------------------
+ .IFDEF DOUBLE ; included in ANS_COMPLEMENT
+ .include "ADDON\DOUBLE.asm"
+ .ENDIF ; DOUBLE
-; ----------------------------------------------------------------------------------------
.ENDIF ; ANS_COMPLEMENT
-; ----------------------------------------------------------------------------------------
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+; ARITHMETIC OPERATORS OPTION
+;-------------------------------------------------------------------------------
+ .IFDEF ARITHMETIC ; included in ANS_COMPLEMENT
+ .include "ADDON\ARITHMETIC.asm"
+ .ENDIF ; ARITHMETIC
+
+;-------------------------------------------------------------------------------
; NUMERIC OUTPUT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; Numeric conversion is done last digit first, so
; the output buffer is built backwards in memory.
;https://forth-standard.org/standard/core/num-start
-;C <# -- begin numeric conversion (initialize Hold Pointer in PAD area)
+;C <# -- begin numeric conversion (initialize Hold Pointer)
FORTHWORD "<#"
LESSNUM: MOV #BASE_HOLD,&HP
mNEXT
-; unsigned 32-BIT DIVIDEND : 16-BIT DIVISOR --> 32-BIT QUOTIENT, 16-BIT REMAINDER
-; DVDhi|DVDlo : DVR --> QUOThi|QUOTlo, REMAINDER
-; about 2 times faster if ud1 < 65536 (it's the general case)
-
-; input registers :
-; T = DIVISOR
-; S = DVDlo
-; W = DVDhi
-; output registers :
-; W = remainder
-; X = QUOTlo
-; Y = QUOThi
-; saved registers :
-; IP = count
-; TOS = DVD48
-
-UDIVQ32: ; use S,T,W,X,Y
- .word 151Eh ;4 PUSHM TOS,IP (1+1 push,TOS=Eh): save all no scratch registers before use
- MOV #0,TOS ;1 TOS = DVD48 = 0
- MOV #32,IP ;3 init loop count
- CMP #0,W ;1 DVDhi <> 0 ?
- JNZ MDIV1 ;2 yes
- RRA IP ;1 no: loop count / 2
- MOV S,W ;1 DVD = DVD<<16
- MOV #0,S ;1
- MOV #0,X ;1 QUOTlo = 0
-MDIV1 CMP T,TOS ;1 DVD48 > divisor ?
- JNC MDIV2 ;2 U<
- SUB T,TOS ;1 DVD48 - DVR
+
+;; unsigned 32-BIT DIVIDEND : 16-BIT DIVISOR --> 32-BIT QUOTIENT, 16-BIT REMAINDER
+;; DVDhi|DVDlo : DIVlo --> QUOThi|QUOTlo REMlo
+;; then REMlo is converted in ASCII char
+;; 2 times faster if DVDhi = 0 (it's the general case)
+;; MU/MOD
+;; reg division NUM
+;; -----------------------------
+;; S = DVDlo (15-0) = ud1lo
+;; TOS = DVDhi (31-16) = ud1hi
+;; T = DIVlo = BASE
+;; W = REMlo = digit --> char --> -[HP]
+;; X = QUOTlo = ud2lo
+;; Y = QUOThi = ud2hi
+;; rDODOES = count
+;
+;;https://forth-standard.org/standard/core/num
+;;C # ud1lo ud1hi -- ud2lo ud2hi convert 1 digit of output
+; FORTHWORD "#"
+;NUM MOV.B &BASE,T ;3 T = DIVlo
+;NUM1 CMP #0,TOS ;1 DVDhi <> 0 ?
+;NUM2 MOV @PSP,S ;2 S = DVDlo, TOS = DVDhi
+; MOV #0,W ;1 W = REMlo = 0
+; MOV #32,rDODOES ;2 init loop count
+; JNZ MDIV ;2 yes
+; RRA rDODOES ;1 no: loop count / 2
+; MOV S,TOS ;1 DVDhi <-- DVDlo
+; MOV #0,S ;1 DVDlo <-- 0
+; MOV #0,X ;1 QUOTlo <-- 0 (to do QUOThi = 0 at the end of division)
+;MDIV1 CMP T,W ;1 REMlo U>= DIVlo ?
+; JNC MDIV2 ;2 no : carry is reset
+; SUB T,W ;1 yes: REMlo - DIVlo ; carry is set after soustraction!
+;MDIV2 ADDC X,X ;1 RLC quotLO
+; ADDC Y,Y ;1 RLC quotHI
+; SUB #1,rDODOES ;1 Decrement loop counter
+; JN ENDMDIV ;2
+; ADD S,S ;1 RLA DVDlo
+; ADDC TOS,TOS ;1 RLC DVDhi
+; ADDC W,W ;1 RLC REMlo
+; JNC MDIV1 ;2
+; SUB T,W ;1 REMlo - DIVlo
+; BIS #1,SR ;1 SETC
+; JMP MDIV2 ;2
+;ENDMDIV MOV #xdodoes,rDODOES;2 restore rDODOES
+; MOV X,0(PSP) ;3 QUOTlo in 0(PSP)
+; MOV Y,TOS ;1 QUOThi in TOS
+;TODIGIT CMP.B #10,W ;2 W = REMlo
+; JLO TODIGIT1 ;2 U<
+; ADD #7,W ;2
+;TODIGIT1 ADD #30h,W ;2
+;HOLDW SUB #1,&HP ;3 store W=char --> -[HP]
+; MOV &HP,Y ;3
+; MOV.B W,0(Y) ;3
+; mNEXT ;4 41 words, about 214/394 cycles/char
+;
+;;https://forth-standard.org/standard/core/numS
+;;C #S udlo:udhi -- udlo:udhi=0 convert remaining digits
+; FORTHWORD "#S"
+;NUMS: mDOCOL
+; .word NUM ;
+; FORTHtoASM ;
+; SUB #2,IP ;1 restore NUM return
+; CMP #0,X ;1 test ud2lo first (generally true)
+; JNZ NUM1 ;2
+; CMP #0,TOS ;1 then test ud2hi (generally false)
+; JNZ NUM2 ;2
+; MOV @RSP+,IP ;2
+; mNEXT ;4 about 215/397 cycles/char
+
+; MU/MOD DVDlo DVDhi DIVlo -- REMlo QUOTlo QUOThi
+; FORTHWORD "MU/MOD"
+ ASMWORD "MU/MOD" ; for ANS_COMP use
+MUSMOD MOV TOS,T ;1 T = DIVlo
+ MOV @PSP,TOS ;2 TOS = DVDhi
+ MOV 2(PSP),S ;3 S = DVDlo
+MUSMOD1 CMP #0,TOS ;1 DVDhi=0 ?
+ MOV #0,W ;1 W = REMlo = 0
+ MOV #32,rDODOES ;2 init loop count
+ JNZ MDIV1 ;2 no
+ RRA rDODOES ;1 yes:loop count / 2
+ MOV S,TOS ;1 DVDhi <-- DVDlo
+ MOV #0,S ;1 DVDlo <-- 0
+ MOV #0,X ;1 QUOTlo <-- 0 (to do QUOThi = 0 at the end of division)
+MDIV1 CMP T,W ;1 REMlo U>= DIVlo ?
+ JNC MDIV2 ;2 no : carry is reset
+ SUB T,W ;1 yes: REMlo - DIVlo ; carry is set after soustraction!
MDIV2 ADDC X,X ;1 RLC quotLO
ADDC Y,Y ;1 RLC quotHI
- SUB #1,IP ;1 Decrement loop counter
- JN ENDMDIVIDE ;2 If 0< --> end
+ SUB #1,rDODOES ;1 Decrement loop counter
+ JN ENDMDIV ;2
ADD S,S ;1 RLA DVDlo
- ADDC W,W ;1 RLC DVDhi
- ADDC TOS,TOS ;1 RLC DVD48
- JNC MDIV1 ;2 14~ loop
- SUB T,TOS ;1 DVD48 - DVR
+ ADDC TOS,TOS ;1 RLC DVDhi
+ ADDC W,W ;1 RLC REMlo
+ JNC MDIV1 ;2
+ SUB T,W ;1 REMlo - DIVlo
BIS #1,SR ;1 SETC
- JMP MDIV2 ;2 14~ loop
-ENDMDIVIDE MOV TOS,W ;1 DVD48 ==> W = remainder
- .word 171Dh ;4 POPM IP, TOS
- RET ;4 27 words
-
+ JMP MDIV2 ;2
+ENDMDIV MOV #xdodoes,rDODOES;2 restore rDODOES
+ MOV W,2(PSP) ;3 REMlo in 2(PSP)
+ MOV X,0(PSP) ;3 QUOTlo in 0(PSP)
+ MOV Y,TOS ;1 QUOThi in TOS
+ RET ;4 35 words, about 252/473 cycles, not FORTH executable !
;https://forth-standard.org/standard/core/num
-;C # ud1lo:ud1hi -- ud2lo:ud2hi convert 1 digit of output
+;C # ud1lo ud1hi -- ud2lo ud2hi convert 1 digit of output
FORTHWORD "#"
-NUM: MOV &BASE,T ;3 T = Divisor
- MOV @PSP,S ;2 S = DVDlo
- MOV TOS,W ;1 TOS ==> W = DVDhi
- CALL #UDIVQ32 ;4 use S,T,W,X,Y
- MOV X,0(PSP) ;3 QUOTlo in 0(PSP)
- MOV Y,TOS ;1 QUOThi in TOS
-TODIGIT CMP.B #10,W ;2 W = REMAINDER
+NUM MOV &BASE,T ;3 T = Divisor
+NUM1 MOV @PSP,S ;2 -- DVDlo DVDhi S = DVDlo
+ SUB #2,PSP ;1 -- DVDlo x DVDhi TOS = DVDhi
+ CALL #MUSMOD1 ;4 -- REMlo QUOTlo QUOThi
+ MOV @PSP+,0(PSP);4 -- QUOTlo QUOThi
+TODIGIT CMP.B #10,W ;2 W = REMlo
JLO TODIGIT1 ;2 U<
ADD #7,W ;2
TODIGIT1 ADD #30h,W ;2
HOLDW SUB #1,&HP ;3 store W=char --> -[HP]
MOV &HP,Y ;3
MOV.B W,0(Y) ;3
- mNEXT ;4 23 words, about 290/490 cycles/char
+ mNEXT ;4 26 words, about 240/413 cycles/char
;https://forth-standard.org/standard/core/numS
;C #S udlo:udhi -- udlo:udhi=0 convert remaining digits
FORTHWORD "#S"
NUMS: mDOCOL
- .word NUM ;
-NUMS1 FORTHtoASM ;
- SUB #2,IP ;1 define NUM return
- CMP #0,X ;1 test udlo first
- JNZ NUM ;2
- CMP #0,TOS ;1 then udhi
- JNZ NUM ;2
-NUMSEND MOV @RSP+,IP ;2
- mNEXT ;4
+ .word NUM ; X=QUOTlo
+ FORTHtoASM ;
+ SUB #2,IP ;1 restore NUM return
+ CMP #0,X ;1 test ud2lo first (generally true)
+ JNZ NUM1 ;2
+ CMP #0,TOS ;1 then test ud2hi (generally false)
+ JNZ NUM1 ;2
+ MOV @RSP+,IP ;2
+ mNEXT ;4 10 words, about 241/417 cycles/char
+
;https://forth-standard.org/standard/core/num-end
;C #> udlo:udhi=0 -- c-addr u end conversion, get string
MOV @PSP+,TOS ;2
JMP HOLDW ;15
-;;https://forth-standard.org/standard/core/HOLDS
-;;Adds the string represented by addr u to the pictured numeric output string
-;;compilation use: <# S" string" HOLDS #>
-;;free HOLDS chars space in the 34 bytes HOLD area (requested by ANS) = 24 chars if hexa, 22 chars if decimal, 0 if binary.
-;;C HOLDS addr u --
-; FORTHWORD "HOLDS"
-;HOLDS MOV @PSP+,X ;2
-; ADD TOS,X ;1 src
-; MOV &HP,Y ;3 dst
-;HOLDSLOOP SUB #1,Y ;1 dst-1
-; SUB #1,X ;1 src-1
-; SUB #1,TOS ;1 cnt-1
-; JLO HOLDSNEXT ;2 u<
-; MOV.B @X,0(Y) ;4
-; JMP HOLDSLOOP ;2
-;HOLDSNEXT MOV Y,&HP ;3
-; MOV @PSP+,TOS ;2
-; mNEXT ;4 15 words
-
;https://forth-standard.org/standard/core/SIGN
;C SIGN n -- add minus sign if n<0
FORTHWORD "SIGN"
SIGN: CMP #0,TOS
MOV @PSP+,TOS
MOV #'-',W
- JN HOLDW ; 0<
+ JN HOLDW ; 0<
mNEXT
-;X UD. udlo udhi -- display ud (unsigned)
- FORTHWORD "UD."
-UDDOT: mDOCOL
- .word LESSNUM,NUMS,NUMGREATER,TYPE
- .word SPACE,EXIT
-
;https://forth-standard.org/standard/core/Ud
;C U. u -- display u (unsigned)
FORTHWORD "U."
-UDOT: SUB #2,PSP
- MOV TOS,0(PSP)
- MOV #0,TOS
- JMP UDDOT
-
-;https://forth-standard.org/standard/double/DABS
-;C DABS d1 -- |d1| absolute value
-; FORTHWORD "DABS"
-DABBS: BIT #8000h,TOS ; 1
- JZ DABBSEND
- XOR #-1,0(PSP)
- XOR #-1,TOS
- ADD #1,0(PSP)
- ADDC #0,TOS
-DABBSEND mNEXT
+UDOT: mDOCOL
+ .word LESSNUM,lit,0,NUMS,NUMGREATER,TYPE,SPACE,EXIT
;https://forth-standard.org/standard/double/Dd
;C D. dlo dhi -- display d (signed)
;https://forth-standard.org/standard/core/d
;C . n -- display n (signed)
FORTHWORD "."
-DOT: BIT #8000h,TOS
- JZ UDOT
+DOT: CMP #0,TOS
+ JGE UDOT
SUB #2,PSP
- MOV #-1,TOS
+ MOV TOS,0(PSP)
+ MOV #-1,TOS ; extend sign
JMP DDOT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; DICTIONARY MANAGEMENT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/HERE
;C HERE -- addr returns dictionary ptr
CALL #RXOFF ;
mNEXT
-;https://forth-standard.org/standard/facility/KEYq
;F KEY? -- c get character from input device ; deferred word
; FORTHWORD "KEY?"
-KEYTST: MOV #PARENKEYTST,PC
+;KEYTST: MOV #PARENKEYTST,PC
;Z (KEY) -- c get character from the terminal
FORTHWORD "KEY"
KEY: MOV #PARENKEY,PC
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; INTERPRETER INPUT, the kernel of kernel !
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
- .IFDEF SD_CARD_LOADER ; ACCEPT becomes a DEFERred word
-
- .include "forthMSP430FR_SD_ACCEPT.asm" ; that creates SD_ACCEPT and (SD_ACCEPT)
+ .IFDEF SD_CARD_LOADER
+ .include "forthMSP430FR_SD_ACCEPT.asm" ; that creates SD_ACCEPT
- .ELSE ; ACCEPT is not a DEFERred word
+ .ELSE
;https://forth-standard.org/standard/core/ACCEPT
-;C ACCEPT addr len -- len' get line at addr to interpret len' chars
+;C ACCEPT addr addr len -- addr' len' get line at addr to interpret len' chars
FORTHWORD "ACCEPT"
-ACCEPT:
+ACCEPT
+
+ .ENDIF ; SD_CARD_LOADER
- .ENDIF
; con speed of TERMINAL link, there are three bottlenecks :
; 1- time to send XOFF/RTS_high on CR (CR+LF=EOL), first emergency.
; --------------------------------------;
MOV #ENDACCEPT,S ;2 S = ACCEPT XOFF return
MOV #AKEYREAD1,T ;2 T = default XON return
- .word 152Dh ;5 PUSHM IP,S,T, as IP ret, ACCEPT XOFF ret, XON ret
+ .word 152Dh ;5 PUSHM IP,S,T, as IP ret, XOFF ret, XON ret
MOV TOS,W ;1 -- addr len
MOV @PSP,TOS ;2 -- org ptr )
ADD TOS,W ;1 -- org ptr W=Bound )
MOV #20h,S ;2 S = 'BL' to speed up char loop in part II ) for TERMINAL_INT use
MOV #AYEMIT_RET,IP ;2 IP = return for YEMIT )
BIT #UCRXIFG,&TERMIFG ;3 RX_Int ?
- JZ ACCEPTNEXT ;2 no : case of FORTH init or input terminal quiet
+ JZ ACCEPTNEXT ;2 no : case of quiet input terminal
MOV &TERMRXBUF,Y ;3 yes: clear RX_Int
CMP #0Ah,Y ;2 received char = LF ? (end of downloading ?)
- JNZ RXON ;2 no : RXON return ==> AKEYREAD1, to process first char of new line.
-ACCEPTNEXT ADD #2,RSP ;1 yes: remove previous XON return address,
- MOV #SLEEP,X ;2 set XON return ==> SLEEP
-; MOV #PARENSLEEP,X ;2 set XON return ==> SLEEP
- .word 154Dh ;7 PUSHM IP,S,T,W,X
+ JNZ RXON ;2 no : RXON return = AKEYREAD1, to process first char of new line.
+ACCEPTNEXT ADD #2,RSP ;1 yes: remove AKEYREAD1 as XON return,
+ MOV #SLEEP,X ;2 and set XON return = SLEEP
+ .word 154Dh ;7 PUSHM IP,S,T,W,X before SLEEP (and so WAKE on any interrupts)
; --------------------------------------;
; ======================================;
; ======================================;
.IFDEF TERMINALXONXOFF ;
MOV #17,&TERMTXBUF ;4 move char XON into TX_buf
+ .ENDIF ;
+ .IFDEF TERMINALCTSRTS ;
+ BIC.B #RTS,&HANDSHAKOUT ;4 set RTS low
+ .ENDIF ;
+ .IFDEF TERMINALXONXOFF ;
.IF TERMINALBAUDRATE/FREQUENCY <230400
RXON_LOOP BIT #UCTXIFG,&TERMIFG ;3 wait the sending end of XON, useless at high baudrates
JZ RXON_LOOP ;2
- .ENDIF
.ENDIF ;
- .IFDEF TERMINALCTSRTS ;
- BIC.B #RTS,&HANDSHAKOUT ;4 set RTS low
.ENDIF ;
; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;
; starts first and 3th stopwatches ;
; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
- RET ;4 to BACKGND or AKEYREAD1
-; --------------------------------------;
+ RET ;4 to BACKGND (End of file download or quiet input) or AKEYREAD1 (get next line of file downloading)
+; --------------------------------------; ...or user defined
+
+; ASMWORD "RXON"
+; JMP RXON
+; ASMWORD "RXOFF"
; ======================================;
RXOFF: ; NOP11
; ======================================;
.IFDEF TERMINALXONXOFF ;
MOV #19,&TERMTXBUF ;4 move XOFF char into TX_buf
+ .ENDIF ;
+ .IFDEF TERMINALCTSRTS ;
+ BIS.B #RTS,&HANDSHAKOUT ;4 set RTS high
+ .ENDIF ;
+ .IFDEF TERMINALXONXOFF ;
.IF TERMINALBAUDRATE/FREQUENCY <230400
RXOFF_LOOP BIT #UCTXIFG,&TERMIFG ;3 wait the sending end of XOFF, useless at high baudrates
JZ RXOFF_LOOP ;2
- .ENDIF
.ENDIF ;
- .IFDEF TERMINALCTSRTS ;
- BIS.B #RTS,&HANDSHAKOUT ;4 set RTS high
.ENDIF ;
RET ;4 to ENDACCEPT, ...or user defined
; --------------------------------------;
-; redirection of word SLEEP to word BACKGROUND is easy: MOV #SLEEP,X
-; MOV #BACKGROUND,2(X)
-;
-; ...but this word BACKGROUND must be ended by: MOV #(SLEEP),PC
-;
-; removing redirection made by : MOV #SLEEP,X
-; MOV #(SLEEP),2(X)
-;
+
; --------------------------------------;
- ASMWORD "SLEEP" ;
+ ASMWORD "SLEEP" ; may be redirected
SLEEP: ;
MOV #PARENSLEEP,PC ;3
; --------------------------------------;
; --------------------------------------;
- ASMWORD "(SLEEP)"
+ ASMWORD "(SLEEP)" ;
PARENSLEEP: ;
BIS &LPM_MODE,SR ;3 enter in LPMx sleep mode with GIE=1
-; --------------------------------------; default mode : LPM0.
+; --------------------------------------; default FAST FORTH mode (for its input terminal use) : LPM0.
+;###############################################################################################################
+;###############################################################################################################
; ### # # ####### ####### ###### ###### # # ###### ####### ##### # # ####### ###### #######
; # ## # # # # # # # # # # # # # # # # # # # #
; # # ## # # # # # # # # # # # # # # # # # #
; ### # # # ####### # # # # ##### # # ##### # # ####### # # #######
+;###############################################################################################################
+;###############################################################################################################
+
; here, Fast FORTH sleeps, waiting any interrupt.
; IP,S,T,W,X,Y registers (R13 to R8) are free for any interrupt routine...
; ...and so PSP and RSP stacks with their rules of use.
-; remember : in any interrupt routine you must include : BIC #0xF8,0(RSP) before RETI
+; remember: in any interrupt routine you must include : BIC #0x78,0(RSP) before RETI
; to force return to SLEEP.
-; or simply (previous SR flags are lost): ADD #2 RSP, then RET instead of RETI
+; or (bad idea ? previous SR flags are lost) simply : ADD #2 RSP, then RET instead of RETI
; ======================================;
- JMP SLEEP ;2 and here is the return for any interrupts, else TERMINAL_INT :-)
-; JMP PARENSLEEP ;2 and here is the return for any interrupts, else TERMINAL_INT :-)
+ JMP SLEEP ;2 here is the return for any interrupts, else TERMINAL_INT :-)
; ======================================;
; **************************************;
-TERMINAL_INT: ; <--- UCA0 RX interrupt vector, delayed by the LPMx wake up time
+TERMINAL_INT: ; <--- TEMR RX interrupt vector, delayed by the LPMx wake up time
; **************************************; if wake up time increases, max bauds rate decreases...
; (ACCEPT) part II under interrupt ; Org Ptr -- len'
; --------------------------------------;
- ADD #4,RSP ;1 remove SR and PC from stack
- .word 173Ah ;6 POPM W=bound,T=0Dh,S=20h,IP=AYEMIT_RET
+ ADD #4,RSP ;1 remove SR and PC from stack, SR flags are lost (unused by FORTH interpreter)
+ .word 173Ah ;6 POPM W=buffer_bound,T=0Dh,S=20h,IP=AYEMIT_RET
; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;
; starts the 2th stopwatch ;
; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
AKEYREAD1 ; <--- XON RET address 2 ; first emergency: anticipate XOFF on CR as soon as possible
CMP.B T,Y ;1 char = CR ?
JZ RXOFF ;2 then RET to ENDACCEPT
-; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;+ 4
-; stops the first stopwatch ; first bottleneck, best case result: 24~ + LPMx wake_up time..
+; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;+ 4 to send RXOFF
+; stops the first stopwatch ;= first bottleneck, best case result: 24~ + LPMx wake_up time..
; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^; ...or 11~ in case of empty line
CMP.B S,Y ;1 printable char ?
JHS ASTORETEST ;2 yes
CMP.B #8,Y ; char = BS ?
- JNE WAITaKEY ;
+ JNE WAITaKEY ; case of other control chars
; --------------------------------------;
-; start of backspace ;
+; start of backspace ; made only by an human
; --------------------------------------;
-BACKSPACE CMP @PSP,TOS ; Ptr = Org ?
+ CMP @PSP,TOS ; Ptr = Org ?
JZ WAITaKEY ; yes: do nothing
SUB #1,TOS ; no : dec Ptr
; --------------------------------------;
; --------------------------------------;
; end of backspace ;
; --------------------------------------;
-ASTORETEST CMP W,TOS ; 1 Bound is reached ? (protect against big lines without CR, UNIX like)
- JZ YEMIT ; 2 yes, send echo without store, then loopback
-ASTORE MOV.B Y,0(TOS) ; 3 no, store char @ Ptr before send echo, then loopback
+ASTORETEST CMP W,TOS ; 1 Bound is reached ?
+ JZ YEMIT ; 2 yes: send echo then loopback
+ MOV.B Y,0(TOS) ; 3 no: store char @ Ptr, send echo then loopback
ADD #1,TOS ; 1 increment Ptr
YEMIT: .word 4882h ; hi7/4~ lo:12/4~ send/send_not echo to terminal
.word TERMTXBUF ; 3 MOV Y,&TERMTXBUF
; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
; --------------------------------------;
-ENDACCEPT ; <--- XOFF RET address
+ENDACCEPT ; <--- XOFF return address
; --------------------------------------;
- MOV #LPM0+GIE,&LPM_MODE ; reset LPM_MODE to default mode LPM0
-DROPEXIT SUB @PSP+,TOS ; Org Ptr -- len'
+ MOV #LPM0+GIE,&LPM_MODE ; reset LPM_MODE to default mode LPM0 for next line of input stream
+DROPEXIT
+ SUB @PSP+,TOS ; Org Ptr -- len'
MOV @RSP+,IP ; 2 and continue with INTERPRET with GIE=0.
; So FORTH machine is protected against any interrupt...
mNEXT ; ...until next falling down to LPMx mode of (ACCEPT) part1,
YEMIT2 BIT #UCTXIFG,&TERMIFG ; 3 wait the sending end of previous char (usefull for low baudrates)
JZ YEMIT2 ; 2
.ENDIF
- JMP YEMIT
+ JMP YEMIT ;9 12~
;https://forth-standard.org/standard/core/EMIT
;C EMIT c -- output character to the output device ; deferred word
FORTHWORD "EMIT"
-EMIT: MOV #PARENEMIT,PC ; 3
+EMIT: MOV #PARENEMIT,PC ;3 15~
;Z ECHO -- connect console output (default)
;https://forth-standard.org/standard/core/SPACE
;C SPACE -- output a space
FORTHWORD "SPACE"
-SPACE: SUB #2,PSP
- MOV TOS,0(PSP)
- MOV #20h,TOS
- JMP EMIT
+SPACE: SUB #2,PSP ;1
+ MOV TOS,0(PSP) ;3
+ MOV #20h,TOS ;2
+ JMP EMIT ;17~ 23~
;https://forth-standard.org/standard/core/SPACES
;C SPACES n -- output n spaces
JZ SPACESEND
PUSH IP
MOV #SPACESNEXT,IP
- JMP SPACE
+ JMP SPACE ;25~
SPACESNEXT FORTHtoASM
- SUB #2,IP
- SUB #1,TOS
- JNZ SPACE
+ SUB #2,IP ;1
+ SUB #1,TOS ;1
+ JNZ SPACE ;25~ ==> 27~ by space ==> 2.963 MBds @ 8 MHz
MOV @RSP+,IP
SPACESEND MOV @PSP+,TOS
mNEXT
MOV W,TOS
mDOCOL
.word xdo
-TYPELOOP .word II,CFETCH,EMIT,xloop,TYPELOOP
+TYPELOOP .word II,CFETCH,EMIT,xloop,TYPELOOP ; 13+6+15+16= 50~ char loop ==> 1.6MBds @ 8MHz
.word EXIT
ADDC #0,IP ; 1 -- addr u IP=addr+u aligned
mNEXT ; 4 16~
+ .IFDEF LOWERCASE
+
+ FORTHWORD "CAPS_ON"
+CAPS_ON: MOV #-1,&CAPS ; state by default
+ mNEXT
+
+ FORTHWORD "CAPS_OFF"
+CAPS_OFF: MOV #0,&CAPS
+ mNEXT
+
;https://forth-standard.org/standard/core/Sq
;C S" -- compile in-line string
FORTHWORDIMM "S\34" ; immediate
SQUOTE: mDOCOL
.word lit,XSQUOTE,COMMA
-SQUOTE1 .word lit,'"',WORDD ; -- c-addr (= HERE)
+SQUOTE1 .word CAPS_OFF
+ .word lit,'"',WORDD ; -- c-addr (= HERE)
+ .word CAPS_ON
FORTHtoASM
MOV @RSP+,IP
MOV.B @TOS,TOS ; -- u
ADDC #2,&DDP ;4 +2 bytes
mNEXT
- .IFDEF LOWERCASE
+ .ELSE
- FORTHWORD "CAPS_ON"
-CAPS_ON: MOV #-1,&CAPS ; state by default
- mNEXT
-
- FORTHWORD "CAPS_OFF"
-CAPS_OFF: MOV #0,&CAPS
+;https://forth-standard.org/standard/core/Sq
+;C S" -- compile in-line string
+ FORTHWORDIMM "S\34" ; immediate
+SQUOTE: mDOCOL
+ .word lit,XSQUOTE,COMMA
+SQUOTE1 .word lit,'"',WORDD ; -- c-addr (= HERE)
+ FORTHtoASM
+ MOV @RSP+,IP
+ MOV.B @TOS,TOS ; -- u
+ SUB #1,TOS ; -1 byte
+ ADD TOS,&DDP
+ MOV @PSP+,TOS
+CELLPLUSALIGN
+ BIT #1,&DDP ;3 carry set if 1
+ ADDC #2,&DDP ;4 +2 bytes
mNEXT
-;https://forth-standard.org/standard/core/Dotq
-;C ." -- compile string to print
- FORTHWORDIMM ".\34" ; immediate
-DOTQUOTE: mDOCOL
- .word CAPS_OFF
- .word SQUOTE
- .word CAPS_ON
- .word lit,TYPE,COMMA,EXIT
-
- .ELSE
+ .ENDIF ; LOWERCASE
;https://forth-standard.org/standard/core/Dotq
;C ." -- compile string to print
.word SQUOTE
.word lit,TYPE,COMMA,EXIT
- .ENDIF ; LOWERCASE
-
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; INTERPRETER
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;https://forth-standard.org/standard/core/WORD
;C WORD char -- addr Z=1 if len=0
-; parse a word delimited by char ( and begining usually at [TIB])
+; parse a word delimited by char separator
; "word" is capitalized
; TOIN is the relative displacement into buffer
-; empty line = 25 cycles + 7 cycles by char
+; spaces (as separator) filled line = 25 cycles + 7 cycles by char
FORTHWORD "WORD"
WORDD: MOV #SOURCE_LEN,S ;2 -- separator
MOV @S+,X ;2 X = buf_len
CMP.B @W+,TOS ;2 does char = separator ?
JZ SKIPCHARLOO ;2 -- separator if yes
SCANWORD SUB #1,W ;1
- MOV #96,T ;2 T = 96 = ascii(a)-1 (test value in register before SCANWORD loop)
+ MOV #96,T ;2 T = 96 = ascii(a)-1 (test value set in a register before SCANWORD loop)
SCANWORDLOO ; -- separator 15/23 cycles loop for upper/lower case char... write words in upper case !
MOV.B S,0(Y) ;3 first time puts anything in dst word length, then put char @ dst.
CMP W,X ;1 buf_ptr = buf_end ?
ADD #1,Y ;1 increment dst just before test loop
CMP.B S,T ;1 char U< 'a' ? ('a'-1 U>= char) this condition is tested at each loop
JC SCANWORDLOO ;2 15~ upper case char loop
- .IFDEF LOWERCASE ; enable lowercase strings
+ .IFDEF LOWERCASE ;
QCAPS CMP #0,&CAPS ;3 CAPS is OFF ? (case available only for ABORT" ." .( )
JZ SCANWORDLOO ;2 yes
.ENDIF ; LOWERCASE ; here CAPS is ON (other cases)
CMP.B #123,S ;2 char U>= 'z'+1 ?
JC SCANWORDLOO ;2 if yes
SUB.B #32,S ;2 convert lowercase char to uppercase
- JMP SCANWORDLOO ;2 28~ lower case char loop
+ JMP SCANWORDLOO ;2
SCANWORDEND SUB &SOURCE_ADR,W ;3 -- separator W=buf_ptr - buf_org = new >IN (first char separator next)
MOV W,&TOIN ;3 update >IN
; VOCLOOP : 12/18 cycles,
; WORDFOUND to end : 21 cycles.
; note: with 16 threads vocabularies, FIND takes about 75% of CORETEST.4th processing time
-
FORTHWORD "FIND"
FIND: SUB #2,PSP ;1 -- ???? c-addr reserve one cell here, not at FINDEND because interacts with flag Z
MOV TOS,S ;1 S=c-addr
mNEXT ;4 42/47 words
-
THREEDROP ADD #2,PSP
TWODROP ADD #2,PSP
MOV @PSP+,TOS
mNEXT
+ .IFDEF MPY
+
;https://forth-standard.org/standard/core/toNUMBER
;C convert a string to double number until count2 = 0 or until not convertible char
;C >NUMBER ud1lo|ud1hi addr1 count1 -- ud2lo|ud2hi addr2 count2
-
- .IFDEF MPY
-
FORTHWORD ">NUMBER" ; 23 cycles + 32/34 cycles DEC/HEX char loop
TONUMBER: MOV @PSP+,S ;2 S = adr
MOV @PSP+,Y ;2 Y = ud1hi
SUB #4,PSP ;1
MOV &BASE,T ;3
TONUMLOOP MOV.B @S,W ;2 -- ud1lo ud1hi adr count W=char
-DDIGITQ SUB.B #30h,W ;2 skip all chars < '0'
- CMP.B #10,W ;2 char was > "9" ?
+DDIGITQ SUB.B #30h,W ;2 skip all chars < '0'
+ CMP.B #10,W ;2 char was U< "10" ?
JLO DDIGITQNEXT ;2 no
SUB.B #7,W ;2 skip all chars between "9" and "A"
+ CMP.B #10,W ;2
+ JLO TONUMEND ;2
DDIGITQNEXT CMP T,W ;1 digit-base
- JHS TONUMEND ;2 -- ud1lo ud1hi adr count abort
+ JHS TONUMEND ;2 -- ud1lo ud1hi adr count abort if < 0 or >= base
MOV X,&MPY32L ;3 Load 1st operand (ud1lo)
MOV Y,&MPY32H ;3 Load 1st operand (ud1hi)
MOV T,&OP2 ;3 Load 2nd operand with BASE
MOV &RES1,Y ;3 hi result in Y (ud2hi)
ADD W,X ;1 ud2lo + digit
ADDC #0,Y ;1 ud2hi + carry
- ADD #1,S ;1 -- ud1lo ud1hi adr count S=adr+1
+TONUMPLUS ADD #1,S ;1 -- ud1lo ud1hi adr count S=adr+1
SUB #1,TOS ;1 -- ud1lo ud1hi adr count-1
JNZ TONUMLOOP ;2 if count <>0
- MOV X,4(PSP) ;3 -- ud2lo ud1hi adr count2
MOV Y,2(PSP) ;3 -- ud2lo ud2hi adr count2
TONUMEND MOV S,0(PSP) ;3 -- ud2lo ud2hi addr2 count2
+ MOV X,4(PSP) ;3 -- ud2lo ud1hi adr count2
mNEXT ;4 38 words
+; ?NUMBER makes the interface between >NUMBER and INTERPRET; it's a subset of INTERPRET.
; convert a string to a signed number; FORTH 2012 prefixes $, %, # are recognized
; 32 bits numbers (with decimal point) are recognized
+; fixed point signed numbers (with a comma) are recognised.
+; prefixes # % $ - are processed before calling >NUMBER, decimal point and comma are processed as >NUMBER exits
;Z ?NUMBER c-addr -- n -1 if convert ok ; flag Z=0
;Z c-addr -- c-addr 0 if convert ko ; flag Z=1
-
-; FORTHWORD "?NUMBER"
-QNUMBER: PUSH #0 ;3 -- c-addr
- PUSH IP ;3
- MOV &BASE,T ;3 T=BASE
- PUSH T ;3 R-- sign IP base
-; ----------------------------------;
-; decimal point process add-on ;
-; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;
- BIC #UF1,SR ;2 reset flag UF1 used here as Decimal Point flag
- MOV.B @TOS,IP ;2 IP = count of chars
- ADD TOS,IP ;1 IP = end address
- MOV TOS,S ;1 S = ptr
- MOV.B #'.',W ;2 W = '.' = Decimal Point DP
-SearchDP CMP S,IP ;1 IP U< S ?
- JLO SearchDPEND ;2
- CMP.B @S+,W ;2 DP found ?
- JNE SearchDP ;2 7~ loop by char
-DPfound BIS #UF1,SR ;2 DP found: set flag UF1
-DPrubLoop MOV.B @S+,-2(S) ;4 rub out decimal point
- CMP S,IP ;1 and move left one all susbsequent chars
- JHS DPrubLoop ;2 7~ loop by char
- SUB.B #1,0(TOS) ;3 and decrement count of chars
-SearchDPEND ;
-; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
- MOV #0,X ;1 X=ud1lo
- MOV #0,Y ;1 Y=ud1hi
- MOV #QNUMNEXT,IP ;2 return from >NUMBER
- SUB #8,PSP ;1 -- x x x x c-addr
+QNUMBER: MOV #0,S ;1
+ MOV &BASE,T ;3 T=BASE
+ BIC #UF9,SR ;2 reset flag UF9, as decimal point flag
+ .word 152Dh ;5 R-- IP sign base
+ MOV #0,X ;1 X=ud1lo
+ MOV #0,Y ;1 Y=ud1hi
+ MOV #QNUMNEXT,IP ;2 return from >NUMBER
+ SUB #8,PSP ;1 -- x x x x c-addr save TOS and make room for >NUMBER
MOV TOS,6(PSP) ;3 -- c-addr x x x c-addr
- MOV TOS,S ;1 S=addrr
- MOV.B @S+,TOS ;2 -- c-addr x x x cnt
- MOV.B @S,W ;2 W=char
- CMP.B #'-',W ;2
- JHS QSIGN ;2 speed up for not prefixed numbers
-QHEXA MOV #16,T ;2 BASE = 16
- SUB.B #'$',W ;2 = 0 ==> "$" : hex number ?
+ MOV TOS,S ;1 S=addrr
+ MOV.B @S+,TOS ;2 -- c-addr x x x cnt TOS=count
+ MOV.B @S,W ;2 W=char
+ SUB.B #',',W ;2
+ JHS QSIGN ;2 for current base, and for ',' or '.' process
+ SUB.B #1,W ;1
+QBINARY MOV #2,T ;3 preset base 2
+ ADD.B #8,W ;1 '%' + 8 = '-' binary number ?
JZ PREFIXED ;2
-QBINARY MOV #2,T ;1 BASE = 2
- SUB.B #1,W ;1 "%" - "$" - 1 = 0 ==> '%' : hex number ?
+QDECIMAL ADD #8,T ;4
+ ADD.B #2,W ;1 '#' + 2 = '%' decimal number ?
JZ PREFIXED ;2
-QDECIMAL ADD #8,T ;1 BASE = 10
- ADD.B #2,W ;1 "#" - "%" + 2 = 0 ==> '#' : decimal number ?
- JNZ TONUMLOOP ;2 if no the conversion return will be ko
-PREFIXED ADD #1,S ;1 addr+1 to skip prefix
- SUB #1,TOS ;1 -- c-addr x x x cnt-1
- MOV.B @S,W ;2 W=2th char, S=adr
- CMP.B #'-',W ;2
-QSIGN JNZ TONUMLOOP ;15 + 32/34 cycles DEC/HEX char loop
-QSIGNYES ADD #1,S ;1 addr+1 to skip "-"
- SUB #1,TOS ;1 -- c-addr x x x cnt-1
- MOV #-1,4(RSP) ;3 R-- sign IP BASE
- JMP TONUMLOOP ;15 + 32/34 cycles DEC/HEX char loop
+QHEXA MOV #16,T ;4
+ SUB.B #1,W ;2 '$' - 1 = '#' hex number ?
+ JNZ TONUMLOOP ;2 -- c-addr ud=0 x x other cases will cause error
+PREFIXED ADD #1,S ;1
+ SUB #1,TOS ;1 -- c-addr ud=0 x count S=adr+1 TOS=count-1
+ MOV.B @S,W ;2 X=2th char, W=adr
+ SUB.B #',',W ;2
+QSIGN CMP.B #1,W ;1
+ JNZ TONUMLOOP ;2 for positive number and for , or . process
+ MOV #-1,2(RSP) ;3 R-- IP sign base
+ JMP TONUMPLUS ;2
+; ----------------------------------; 39
+QNUMNEXT FORTHtoASM ; -- c-addr ud2lo-hi addr2 cnt2
+ CMP #0,TOS ;1 -- c-addr ud2lo-hi addr2 cnt2 cnt2=0 ? conversion is ok ?
+ JZ QNUMNEXT1 ;2 yes
+; ----------------------------------; -- c-addr ud2lo-hi addr2 cnt2 R-- IP sign BASE S=addr2
+ BIS #UF9,SR ;2 set double number flag
+; ----------------------------------; -- c-addr ud2lo-hi addr2 cnt2 R-- IP sign BASE S=addr2
+QNUMDP CMP.B #'.',0(S) ;4 rejected char by >NUMBER = decimal point ?
+ JNZ QS15Q16 ;2 no
; ----------------------------------;
-
+QNUMDPFOUND ;BIS #UF9,SR ;2 yes:set double number flag
+ SUB #2,IP ;1 set >NUMBER return address
+ JMP TONUMPLUS ;2 to terminate conversion
; ----------------------------------;
-QNUMNEXT FORTHtoASM ; -- c-addr ud2lo ud2hi addr2 count2
- ADD #2,PSP ;1
- CMP #0,TOS ;1 -- c-addr ud2lo ud2hi cnt2 n=0 ? conversion is ok ?
- .word 0172Ch ;4 -- c-addr ud2lo ud2hi sign POPM S,IP,TOS; TOS = sign flag = {-1;0}
- MOV S,&BASE ;3
- JZ QNUMOK ;2 -- c-addr ud2lo ud2hi sign conversion OK
-QNUMKO ADD #4,PSP ;1 -- c-addr sign
- AND #0,TOS ;1 -- c-addr ff TOS=0 and Z=1 ==> conversion ko
- mNEXT ;4 69
+QS15Q16 CMP.B #',',0(S) ;5 rejected char by >NUMBER is a comma ?
+ JNZ QNUMNEXT1 ;2 no
+; ----------------------------------;
+S15Q16 ;BIS #UF9,SR ;2 set double number flag
+ MOV TOS,W ;1 -- c-addr ud2lo x x x W=cnt2
+; MOV #0,0(PSP) ;3 -- c-addr ud2lo x 0 x init ud2lo' = 0
+;S15Q16LOOP MOV @PSP,2(PSP) ;4 -- c-addr ud2lo ud2lo' ud2lo' x X = 0(PSP) = ud2lo'
+ MOV #0,X ;1 -- c-addr ud2lo x 0 x init ud2lo' = 0
+S15Q16LOOP MOV X,2(PSP) ;3 -- c-addr ud2lo ud2lo' ud2lo' x X = 0(PSP) = ud2lo'
+ SUB.B #1,W ;1 decrement cnt2
+ MOV W,X ;1 X = cnt2-1
+ ADD S,X ;1 X = end_of_string-1, first...
+ MOV.B @X,X ;2 X = last char of string, first...
+ SUB #30h,X ;2 char --> digit conversion
+ CMP.B #10,X ;2
+ JLO QS15Q16DIGI ;2
+ SUB.B #7,X ;2
+ CMP.B #10,X ;2
+ JLO S15Q16EOC ;2
+QS15Q16DIGI CMP T,X ;1 R-- IP sign BASE is X a digit ?
+ JHS S15Q16EOC ;2 -- c-addr ud2lo ud2lo' x ud2lo' if no
+ MOV X,0(PSP) ;3 -- c-addr ud2lo ud2lo' digit x
+ MOV T,TOS ;1 -- c-addr ud2lo ud2lo' digit base R-- IP sign base
+ .word 152Ch ;6 PUSH S,T,W: R-- IP sign base addr2 base cnt2
+ CALL #MUSMOD ;4 -- c-addr ud2lo ur uqlo uqhi
+ .word 172Ah ;6 restore W,T,S: R-- IP sign BASE
+ JMP S15Q16LOOP ;2 W=cnt
+S15Q16EOC MOV 4(PSP),2(PSP) ;5 -- c-addr ud2lo ud2hi uqlo x ud2lo from >NUMBER part1 becomes here ud2hi=S15 part2
+ MOV @PSP,4(PSP) ;4 -- c-addr ud2lo ud2hi x x uqlo becomes ud2lo
+ MOV W,TOS ;1 -- c-addr ud2lo ud2hi x cnt2
+ CMP.B #0,TOS ;1 TOS = 0 if end of conversion char = ',' (happy end)
; ----------------------------------;
-QNUMOK MOV 2(PSP),4(PSP) ; -- udlo udlo udhi sign
- MOV @PSP+,0(PSP) ;4 -- udlo udhi sign note : PSP is incremented before write back !!!
+;S11Q20 ;BIS #UF9,SR ;2 set double number flag
+; MOV TOS,W ;1 -- c-addr ud2lo x x x W=cnt2
+; MOV #0,X ;1 -- c-addr ud2lo x 0 x init ud2lo' = 0
+; MOV #0,TOS ;1 -- c-addr ud2lo x 0 0 init ud2hi' = 0
+;S11Q20LOOP MOV X,2(PSP) ;3 -- c-addr ud2lo ud2lo' ud2lo' ud2hi'
+; MOV TOS,0(PSP) ;3 -- c-addr ud2lo ud2lo' ud2hi' x
+; SUB.B #1,W ;1 decrement cnt2
+; MOV W,X ;1 X = cnt2-1
+; ADD S,X ;1 X = end_of_string-1, first...
+; MOV.B @X,X ;2 X = last char of string, first...
+; SUB #30h,X ;2 char --> digit conversion
+; CMP.B #10,X ;2
+; JLO QS11Q20DIGI ;2
+; SUB.B #7,X ;2
+; CMP.B #10,X ;2
+; JLO S11Q20EOC ;2
+;QS11Q20DIGI CMP T,X ;1 R-- IP sign BASE is X a digit ?
+; JHS S11Q20EOC ;2 -- c-addr ud2lo ud2lo' x ud2lo' if char is not a valid digit ==> End Of Conversion
+; .word 0F5Bh ; RRUM #4,X
+; ADD X,0(PSP) ;3 -- c-addr ud2lo ud2lo' digit&ud2hi' x
+; MOV T,TOS ;1 -- c-addr ud2lo ud2lo' digit&ud2hi' base R-- IP sign base
+; .word 152Ch ;6 PUSH S,T,W: R-- IP sign base addr2 base cnt2
+; CALL #MUSMOD ;4 -- c-addr ud2lo ur uqlo uqhi X = QUOTlo
+; .word 172Ah ;6 restore W,T,S: R-- IP sign BASE
+; JMP S11Q20LOOP ;2 W=cnt
+;S11Q20EOC MOV 4(PSP),X ;
+; .word 0F5Bh ; RRUM #4,X
+; MOV X,2(PSP) ;5 -- c-addr ud2lo ud2hi uqlo x ud2lo from >NUMBER part1 becomes here ud2hi=S11 part2
+; AND #0Fh,TOS ;
+; ADD TOS,2(PSP)
+; MOV @PSP,4(PSP) ;4 -- c-addr ud2lo ud2hi x x uqlo becomes ud2lo
+; MOV W,TOS ;1 -- c-addr ud2lo ud2hi x cnt2
+; CMP.B #0,TOS ;1 if end of string is reached, happy end of conversion
+;; ----------------------------------;88
+QNUMNEXT1 .word 0172Bh ;4 -- c-addr ud2lo-hi x cnt2 POPM T,S,IP S = sign flag = {-1;0}
+ MOV S,TOS ;1 -- c-addr ud2lo-hi x sign
+ MOV T,&BASE ;3
+ JZ QNUMOK ;2 -- c-addr ud2lo-hi x sign conversion OK
+QNUMKO ADD #6,PSP ;1 -- c-addr sign
+ AND #0,TOS ;1 -- c-addr ff TOS=0 and Z=1 ==> conversion ko
+ mNEXT ;4
+; ----------------------------------;97
+QNUMOK ADD #2,PSP ;1 -- c-addr ud2lo-hi cnt2
+ MOV 2(PSP),4(PSP) ; -- udlo udlo udhi sign
+ MOV @PSP+,0(PSP) ;4 -- udlo udhi sign note : PSP is incremented before write back !!!
XOR #-1,TOS ;1 -- udlo udhi inv(sign)
JNZ QDOUBLE ;2 if jump : TOS=-1 and Z=0 ==> conversion ok
Q2NEGATE XOR #-1,TOS ;1 -- udlo udhi tf
XOR #-1,0(PSP) ;3 -- dlo-1 udhi tf
ADD #1,2(PSP) ;3 -- dlo dhi-1 tf
ADDC #0,0(PSP) ;3 -- dlo dhi tf
-QDOUBLE BIT #UF1,SR ;2 decimal point added ?
- JNZ QNUMEND ;2 leave double
- ADD #2,PSP ;1 leave number
-QNUMEND mNEXT ;4 90 words TOS=-1 and Z=0 ==> conversion ok
-; ----------------------------------;
+QDOUBLE BIT #UF9,SR ;2 decimal point added ?
+ JNZ QNUMEND ;2 leave double
+ ADD #2,PSP ;1 leave number
+QNUMEND mNEXT ;4 TOS=-1 and Z=0 ==> conversion ok
+; ----------------------------------;119 words
+
.ELSE ; no hardware MPY
+; T.I. SIGNED MULTIPLY SUBROUTINE: U1 x U2 -> Ud
+
+;https://forth-standard.org/standard/core/UMTimes
+;C UM* u1 u2 -- ud unsigned 16x16->32 mult.
+ FORTHWORD "UM*"
+UMSTAR: MOV @PSP,S ;2 MDlo
+UMSTAR1 MOV #0,T ;1 MDhi=0
+ MOV #0,X ;1 RES0=0
+ MOV #0,Y ;1 RES1=0
+ MOV #1,W ;1 BIT TEST REGISTER
+UMSTARLOOP BIT W,TOS ;1 TEST ACTUAL BIT MRlo
+ JZ UMSTARNEXT ;2 IF 0: DO NOTHING
+ ADD S,X ;1 IF 1: ADD MDlo TO RES0
+ ADDC T,Y ;1 ADDC MDhi TO RES1
+UMSTARNEXT ADD S,S ;1 (RLA LSBs) MDlo x 2
+ ADDC T,T ;1 (RLC MSBs) MDhi x 2
+ ADD W,W ;1 (RLA) NEXT BIT TO TEST
+ JNC UMSTARLOOP ;2 IF BIT IN CARRY: FINISHED 10~ loop
+ MOV X,0(PSP) ;3 low result on stack
+ MOV Y,TOS ;1 high result in TOS
+ mNEXT ;4 17 words
+
+;https://forth-standard.org/standard/core/toNUMBER
+;C convert a string to double number until count2 = 0 or until not convertible char
+;C >NUMBER ud1lo|ud1hi addr1 count1 -- ud2lo|ud2hi addr2 count2
+
FORTHWORD ">NUMBER"
-TONUMBER: MOV @PSP,S ; -- ud1lo ud1hi adr count
- MOV.B @S,S ; -- ud1lo ud1hi adr count S=char
-DDIGITQ SUB.B #30h,S ;2 skip all chars < '0'
- CMP.B #10,S ; char was > "9" ?
- JLO DDIGITQNEXT ; -- ud1lo ud1hi adr count no
- SUB.B #07h,S ; S=digit
-DDIGITQNEXT CMP &BASE,S ; -- ud1lo ud1hi adr count digit-base
+TONUMBER: MOV @PSP,S ; S=adr
+ MOV TOS,T ; T=count
+TONUMLOOP MOV.B @S,X ; -- ud1lo ud1hi x x X=char
+DDIGITQ SUB.B #30h,X ;2 skip all chars < '0'
+ CMP.B #10,X ; char was > "9" ?
+ JLO DDIGITQNEXT ; -- ud1lo ud1hi x x no
+ SUB.B #07,X ;2 skip all chars between "9" and "A"
+ CMP.B #10,X ;2
+ JLO TONUMEND ;2
+DDIGITQNEXT CMP &BASE,X ; -- ud1lo ud1hi x x digit-base
JHS TONUMEND ; U>=
-UDSTAR .word 152Eh ; -- ud1lo ud1hi adr count PUSHM TOS,IP,S (2+1 push,TOS=Eh)
- SUB #2,PSP ; -- ud1lo ud1hi adr x count
- MOV 4(PSP),0(PSP) ; -- ud1lo ud1hi adr ud1hi count
- MOV &BASE,TOS ; -- ud1lo ud1hi adr ud1hi u2=base
+UDSTAR .word 154Dh ; -- ud1lo ud1hi x x R-- IP adr count x digit PSUHM IP,S,T,W,X
+ MOV 2(PSP),S ; -- ud1lo ud1hi x x S=ud1hi
+ MOV &BASE,TOS ; -- ud1lo ud1hi x base
MOV #UMSTARNEXT1,IP ;
-UMSTAR1 MOV #UMSTAR,PC ; ud1hi * base ; UMSTAR use S,T,W,X,Y
-UMSTARNEXT1 FORTHtoASM ; -- ud1lo ud1hi adr ud3lo ud3hi
- PUSH @PSP ; r-- count ud3lo
- MOV 6(PSP),0(PSP) ; -- ud1lo ud1hi adr ud1lo ud3hi
- MOV &BASE,TOS ; -- ud1lo ud1hi adr ud1lo u=base
- MOV #UMSTARNEXT2,IP
-UMSTAR2 MOV #UMSTAR,PC ; ud1lo * base ; UMSTAR use S,T,W,X,Y, and S is free for use
-UMSTARNEXT2 FORTHtoASM ; -- ud1lo ud1hi adr ud2lo ud2hi r-- count IP digit ud3lo
- ADD @RSP+,TOS ; -- ud1lo ud1hi adr ud2lo ud2hi r-- count IP digit add ud3lo to ud2hi
-MPLUS ADD @RSP+,0(PSP) ; -- ud1lo ud1hi adr ud2lo ud2hi Ud2lo + digit
- ADDC #0,TOS ; -- ud1lo ud1hi adr ud2lo ud2hi ud2hi + carry
- MOV @PSP,6(PSP) ; -- ud2lo ud1hi adr ud2lo ud2hi
- MOV TOS,4(PSP) ; -- ud2lo ud2hi adr ud2lo ud2hi
- .word 171Dh ; -- ud2lo ud2hi adr ud2lo count POPM IP,TOS (1+1 pop,IP=D)
- ADD #2,PSP ; -- ud2lo ud2hi adr count
- ADD #1,0(PSP) ; -- ud2lo ud2hi adr+1 count
- SUB #1,TOS ; -- ud2lo ud2hi adr+1 count-1
- JNZ TONUMBER
-TONUMEND mNEXT ; 52 words
-
+UMSTARONE JMP UMSTAR1 ; ud1hi * base -- x ud3hi X=ud3lo
+UMSTARNEXT1 FORTHtoASM ; -- ud1lo ud1hi x ud3hi
+ MOV X,2(RSP) ; R-- IP adr count ud3lo digit
+ MOV 4(PSP),S ; -- ud1lo ud1hi x ud3hi S=ud1lo
+ MOV &BASE,TOS ; -- ud1lo ud1hi x base
+ MOV #UMSTARNEXT2,IP ;
+UMSTARTWO JMP UMSTAR1 ; ud1lo * base -- x ud4hi X=ud4lo
+UMSTARNEXT2 FORTHtoASM ; -- ud1lo ud1hi x ud4hi r-- IP adr count ud3lo digit
+ ADD @RSP+,X ; -- ud1lo ud1hi x ud4hi X = ud4lo+digit = ud2lo
+MPLUS ADDC @RSP+,TOS ; -- ud1lo ud1hi x ud2hi TOS = ud4hi+ud3lo+carry = ud2hi
+ MOV X,4(PSP) ; -- ud2lo ud1hi x ud2hi
+ MOV TOS,2(PSP) ; -- ud2lo ud2hi x x R-- IP adr count
+ .word 172Bh ; -- ud2lo ud2hi x x T=count, S=adr POPM T,S,IP
+TONUMPLUS ADD #1,S ;
+ SUB #1,T ;
+ JNZ TONUMLOOP ; -- ud2lo ud2hi x x S=adr+1, T=count-1, X=ud2lo
+TONUMEND MOV S,0(PSP) ; -- ud2lo ud2hi adr2 count2
+ MOV T,TOS ; -- ud2lo ud2hi adr2 count2
+ mNEXT ; 46 words
; convert a string to a signed number
;Z ?NUMBER c-addr -- n -1 if convert ok ; flag Z=0
;Z c-addr -- c-addr 0 if convert ko ; flag Z=1
-; FORTH 2012 prefixes $, %, # are recognized
+; FORTH 2012 prefixes $, %, # are recognised
+; 32 bits numbers (with decimal point) are recognised
+; fixed point signed numbers (with a comma) are recognised.
+; prefixes # % $ - are processed before calling >NUMBER, decimal point and comma are >NUMBER exits
; FORTHWORD "?NUMBER"
-QNUMBER: PUSH #0 ;3 -- c-addr
- PUSH IP ;3
- PUSH &BASE ;3 R-- sign IP base
-; ----------------------------------;
-; decimal point process add-on ;
-; vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv;
- BIC #UF1,SR ;2 reset flag UF1 used here as decimal point flag
- MOV.B @TOS,IP ;2 IP = count of chars
- ADD TOS,IP ;1 IP = end address
- MOV TOS,S ;1 S = ptr
- MOV.B #'.',W ;2 W = '.'
-SearchDP CMP S,IP ;1 IP U< S ?
- JLO SearchDPEND ;2
- CMP.B @S+,W ;2 DP found ?
- JNE SearchDP ;2 7~ loop by char
-DPfound BIS #UF1,SR ;2 DP found: set flag UF1
-DPrubLoop MOV.B @S+,-2(S) ;4 rub out decimal point
- CMP S,IP ;1 and move left one all susbsequent chars
- JHS DPrubLoop ;2 7~ loop by char
- SUB.B #1,0(TOS) ;3 and decrement count of chars
-SearchDPEND
-; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^;
+QNUMBER: MOV #0,S ;1
+ MOV &BASE,T ;3 T=BASE
+ BIC #UF9,SR ;2 reset flag UF9 used here as decimal point flag
+ .word 152Dh ;5 R-- IP sign base
MOV #QNUMNEXT,IP ;2 define return from >NUMBER
SUB #8,PSP ;1 -- x x x x c-addr
MOV TOS,6(PSP) ;3 -- c-addr x x x c-addr
MOV #0,4(PSP) ;3
- MOV #0,2(PSP) ;3 -- c-addr ud x c-addr
- MOV TOS,W ;1
- MOV.B @W+,TOS ;2 -- c-addr ud x count
- MOV W,0(PSP) ;3 -- c-addr ud adr count
- MOV.B @W+,X ;2 X=char
- CMP.B #'-',X ;2
- JHS QSIGN ;2 speed up for not prefixed numbers
-QHEXA SUB.B #'$',X ;2 = 0 ==> "$" : hex number ?
- JNZ QBINARY ;2 -- c-addr ud adr count other cases will cause error
- MOV #16,&BASE ;4
- JMP PREFIXED ;2
-QBINARY SUB.B #1,X ;1 "%" - "$" - 1 = 0 ==> '%' : hex number ?
- JNZ QDECIMAL ;2
- MOV #2,&BASE ;3
- JMP PREFIXED ;2
-QDECIMAL ADD.B #2,X ;1 "#" - "%" + 2 = 0 ==> '#' : decimal number ?
- JNZ TONUMBER ;2 that will perform a conversion error
- MOV #10,&BASE ;4
-PREFIXED MOV W,0(PSP) ;3
- SUB #1,TOS ;1 -- c-addr ud adr+1 count-1
- MOV.B @W+,X ;2 X=2th char, W=adr
- CMP.B #'-',X ;2
-QSIGN JNZ TONUMBER ;2
- MOV #-1,4(RSP) ;3 R-- sign IP BASE
- MOV W,0(PSP) ;3
- SUB #1,TOS ;1 -- c-addr ud adr+1 count-1
- JMP TONUMBER ;2 69
+ MOV #0,2(PSP) ;3 -- c-addr ud=0 x c-addr
+ MOV TOS,S ;1
+ MOV.B @S+,T ;2 -- c-addr ud=0 x x S=adr, T=count
+ MOV.B @S,X ;2 X=char
+ SUB.B #',',X ;2
+ JHS QSIGN ;2 for current base, and for ',' or '.' process
+ SUB.B #1,X ;1
+QBINARY MOV #2,&BASE ;3 preset base 2
+ ADD.B #8,X ;1 '%' + 8 = '-' binary number ?
+ JZ PREFIXED ;2
+QDECIMAL ADD #8,&BASE ;4
+ ADD.B #2,X ;1 '#' + 2 = '%' decimal number ?
+ JZ PREFIXED ;2
+QHEXA MOV #16,&BASE ;4
+ SUB.B #1,X ;2 '$' - 1 = '#' hex number ?
+ JNZ TONUMLOOP ;2 -- c-addr ud=0 x x other cases will cause error
+PREFIXED ADD #1,S ;1
+ SUB #1,T ;1 -- c-addr ud=0 x x S=adr+1 T=count-1
+ MOV.B @S,X ;2 X=2th char, W=adr
+ SUB.B #',',X ;2
+QSIGN CMP.B #1,X ;1
+ JNZ TONUMLOOP ;2 for positive number and for , or . process
+ MOV #-1,2(RSP) ;3 R-- IP sign base
+ JMP TONUMPLUS ;2
+; ----------------------------------;45
+QNUMNEXT FORTHtoASM ; -- c-addr ud2lo ud2hi addr2 count2
+ CMP #0,TOS ;1 -- c-addr ud2lo-hi addr2 cnt2 cnt2=0 ? conversion is ok ?
+ JZ QNUMNEXT1 ;2 yes
; ----------------------------------;
-
+ BIS #UF9,SR ;2 set double number flag
; ----------------------------------;
-QNUMNEXT FORTHtoASM ; -- c-addr ud2lo ud2hi addr2 count2
- ADD #2,PSP ;1
- CMP #0,TOS ;1 -- c-addr ud2lo ud2hi cnt2 n=0 ? conversion is ok ?
- .word 0172Ch ;4 -- c-addr ud2lo ud2hi sign POPM S,IP,TOS; TOS = sign flag = {-1;0}
- MOV S,&BASE ;3
- JZ QNUMOK ;2 -- c-addr ud2lo ud2hi sign conversion OK
-QNUMKO ADD #4,PSP ;1 -- c-addr sign
- AND #0,TOS ;1 -- c-addr ff TOS=0 and Z=1 ==> conversion ko
+QNUMDP CMP.B #'.',0(S) ;4 rejected char by >NUMBER is a decimal point ?
+ JNZ QS15Q16 ;2 no
+; ----------------------------------; -- c-addr ud2lo-hi addr2 cnt2 R-- IP sign BASE S=addr2,T=cnt2
+QNUMDPFOUND ;BIS #UF9,SR ;2 yes:set double number flag
+ SUB #2,IP ;1 set >NUMBER return address
+ JMP TONUMPLUS ;2 to terminate conversion
+; ----------------------------------;56
+QS15Q16 CMP.B #',',0(S) ;5 rejected char by >NUMBER is a comma ?
+ JNZ QNUMNEXT1 ;2 no
+; ----------------------------------;
+S15Q16 ;BIS #UF9,SR ;2 set double number flag
+ MOV T,W ;1 -- c-addr ud2lo x x x W=cnt2
+ MOV &BASE,T ;3 T=current base
+; MOV #0,0(PSP) ;3 -- c-addr ud2lo x 0 x init ud2lo' = 0
+;S15Q16LOOP MOV @PSP,2(PSP) ;4 -- c-addr ud2lo ud2lo' ud2lo' x X = 0(PSP) = ud2lo'
+ MOV #0,X ;1 -- c-addr ud2lo x 0 x init ud2lo' = 0
+S15Q16LOOP MOV X,2(PSP) ;3 -- c-addr ud2lo ud2lo' ud2lo' x X = 0(PSP) = ud2lo'
+ SUB.B #1,W ;1 decrement cnt2
+ MOV W,X ;1 X = cnt2-1
+ ADD S,X ;1 X = end_of_string-1, first...
+ MOV.B @X,X ;2 X = last char of string, first...
+ SUB #30h,X ;2 char --> digit conversion
+ CMP.B #10,X ;2
+ JLO QS15Q16DIGI ;2
+ SUB.B #7,X ;2
+ CMP.B #10,X ;2
+ JLO S15Q16EOC ;2
+QS15Q16DIGI CMP T,X ;1 R-- IP sign BASE is X a digit ?
+ JHS S15Q16EOC ;2 -- c-addr ud2lo ud2lo' x ud2lo' if no
+ MOV X,0(PSP) ;3 -- c-addr ud2lo ud2lo' digit x
+ MOV T,TOS ;1 -- c-addr ud2lo ud2lo' digit base R-- IP sign base
+ .word 152Ch ;6 PUSH S,T,W: R-- IP sign base addr2 base cnt2
+ CALL #MUSMOD ;4 -- c-addr ud2lo ur uqlo uqhi
+ .word 172Ah ;6 restore W,T,S: R-- IP sign BASE
+ JMP S15Q16LOOP ;2 W=cnt
+S15Q16EOC MOV 4(PSP),2(PSP) ;5 -- c-addr ud2lo ud2lo uqlo x ud2lo from >NUMBER part1 becomes here ud2hi=S15 part2
+ MOV @PSP,4(PSP) ;4 -- c-addr ud2lo ud2hi x x uqlo becomes ud2lo
+ MOV W,TOS ;1 -- c-addr ud2lo ud2hi x cnt2
+ CMP.B #0,TOS ;1 TOS = 0 if end of conversion char = ',' (happy end)
+; ----------------------------------;97
+QNUMNEXT1 .word 0172Bh ;4 -- c-addr ud2lo-hi x cnt2 POPM T,S,IP S = sign flag = {-1;0}
+ MOV S,TOS ;1 -- c-addr ud2lo-hi x sign
+ MOV T,&BASE ;3
+ JZ QNUMOK ;2 -- c-addr ud2lo-hi x sign conversion OK
+QNUMKO ADD #6,PSP ;1 -- c-addr sign
+ AND #0,TOS ;1 -- c-addr ff TOS=0 and Z=1 ==> conversion ko
mNEXT ;4
; ----------------------------------;
-QNUMOK MOV 2(PSP),4(PSP) ; -- udlo udlo udhi sign
- MOV @PSP+,0(PSP) ;4 -- udlo udhi sign note : PSP is incremented before write back !!!
+QNUMOK ADD #2,PSP ;1 -- c-addr ud2lo-hi sign
+ MOV 2(PSP),4(PSP) ; -- udlo udlo udhi sign
+ MOV @PSP+,0(PSP) ;4 -- udlo udhi sign note : PSP is incremented before write back !!!
XOR #-1,TOS ;1 -- udlo udhi inv(sign)
- JNZ QDOUBLE ;2 if jump : TOS=-1 and Z=0 ==> conversion ok
+ JNZ QDOUBLE ;2 if jump : TOS=-1 and Z=0 ==> conversion ok
Q2NEGATE XOR #-1,TOS ;1 -- udlo udhi tf
XOR #-1,2(PSP) ;3 -- dlo-1 dhi-1 tf
XOR #-1,0(PSP) ;3 -- dlo-1 udhi tf
ADD #1,2(PSP) ;3 -- dlo dhi-1 tf
ADDC #0,0(PSP) ;3 -- dlo dhi tf
-QDOUBLE BIT #UF1,SR ;2 decimal point added ?
- JNZ QNUMEND ;2 process double numbers
- ADD #2,PSP ;
-QNUMEND mNEXT ;4 100 words TOS=-1 and Z=0 ==> conversion ok
-; ----------------------------------;
+QDOUBLE BIT #UF9,SR ;2 decimal point added ?
+ JNZ QNUMEND ;2 leave double
+ ADD #2,PSP ;1 leave number
+QNUMEND mNEXT ;4 TOS=-1 and Z=0 ==> conversion ok
+; ----------------------------------;128 words
.ENDIF ; MPY
-
;https://forth-standard.org/standard/core/EXECUTE
;C EXECUTE i*x xt -- j*x execute Forth word at 'xt'
FORTHWORD "EXECUTE"
;https://forth-standard.org/standard/core/LITERAL
;C LITERAL (n|d) -- append single numeric literal if compiling state
-; (n|d) -- append double numeric literal if compiling state and if UF1=1 (not ANS)
+; (n|d) -- append double numeric literal if compiling state and if DP<>0 (not ANS)
FORTHWORDIMM "LITERAL" ; immediate
LITERAL: CMP #0,&STATE ;3
JZ LITERALEND ;2
- BIT #UF1,SR ;2
- JZ LITERAL1 ;2
-LITERAL2 MOV &DDP,W ;3
- ADD #4,&DDP ;3
- MOV #lit,0(W) ;4
- MOV @PSP+,2(W) ;3
LITERAL1 MOV &DDP,W ;3
ADD #4,&DDP ;3
MOV #lit,0(W) ;4
MOV TOS,2(W) ;3
MOV @PSP+,TOS ;2
-LITERALEND mNEXT ;4 24~
+ BIT #UF9,SR ;2
+ BIC #UF9,SR ;2
+ JNZ LITERAL1 ;2
+LITERALEND mNEXT ;4 30~
;https://forth-standard.org/standard/core/COUNT
;C COUNT c-addr1 -- adr len counted->adr/len
;C INTERPRET i*x addr u -- j*x interpret given buffer
; This is the common factor of EVALUATE and QUIT.
; Absent from forth 2012
-
+; set addr, u as input buffer then parse it word by word
; FORTHWORD "INTERPRET"
INTERPRET: MOV TOS,&SOURCE_LEN ; -- addr u buffer lentgh ==> ticksource variable
MOV @PSP+,&SOURCE_ADR ; -- u buffer address ==> ticksource+2 variable
JZ COMMA ;2 c-addr -- if W xor STATE = 0 compile xt then loop back to INTLOOP
JNZ EXECUTE ;2 c-addr -- if W xor STATE <> 0 execute then loop back to INTLOOP
-INTQNUMNEXT FORTHtoASM ; -- n|c-addr fl Z = not a number
+INTQNUMNEXT FORTHtoASM ; -- n|c-addr fl Z = not a number, SR(UF9) double number request
MOV @PSP+,TOS ;2
MOV #INTLOOP,IP ;2 -- n|c-addr define LITERAL return
JNZ LITERAL ;2 n -- execute LITERAL then loop back to INTLOOP
ADD TOS,Y ;1
MOV.B #'?',0(Y) ;5 add '?' to end of word
MOV #FQABORTYES,IP ;2 define COUNT return
- JMP COUNT ;2 c-addr -- 44 words
+ JMP COUNT ;2 -- addr len 44 words
;https://forth-standard.org/standard/core/EVALUATE
; EVALUATE \ i*x c-addr u -- j*x interpret string
FORTHWORD "EVALUATE"
-EVALUATE: MOV #SOURCE_LEN,X
- PUSH @X+ ;4 push SOURCE_LEN
- PUSH @X+ ;4 push SOURCE_ADR
- PUSH @X+ ;4 push TOIN
- PUSH IP
+EVALUATE: MOV #SOURCE_LEN,X ;2
+ MOV @X+,S ;2 S = SOURCE_LEN
+ MOV @X+,T ;2 T = SOURCE_ADR
+ MOV @X+,W ;2 W = TOIN
+ .word 153Dh ;6 PUSHM IP,S,T,W
ASMtoFORTH
.word INTERPRET
FORTHtoASM
- MOV @RSP+,IP ;2
MOV @RSP+,&TOIN ;4
MOV @RSP+,&SOURCE_ADR ;4
MOV @RSP+,&SOURCE_LEN ;4
+ MOV @RSP+,IP ;2
mNEXT
+ .IFDEF SD_CARD_LOADER
+ .IFDEF CONDCOMP
+ .IFDEF BOOTLOADER
+BOOTLOAD
+ .ENDIF
+ .ENDIF
+ .ENDIF
+
+ .IFDEF BOOTLOAD ; IF BOOTLOADER
+;https://forth-standard.org/standard/core/QUIT
+;c BOOT -- jump to bootstrap then continues with (QUIT)
+ FORTHWORD "BOOT"
+BOOT MOV #RSTACK,RSP
+ MOV #LSTACK,&LEAVEPTR
+ MOV #0,&STATE
+; ----------------------------------;
+; BOOTSTRAP TEST ;
+; ----------------------------------;
+ CMP #0,&SAVE_SYSRSTIV ; if WARM
+ JZ QUIT0 ; no boostrap
+ BIT.B #SD_CD,&SD_CDIN ; SD_memory in SD_Card module ?
+ JNZ QUIT0 ; no
+; ----------------------------------;
+; BOOTSTRAP ; on SYSRSTIV <> 0
+; ----------------------------------;
+ SUB #2,PSP ;
+ MOV TOS,0(PSP) ;
+ MOV &SAVE_SYSRSTIV,TOS ;
+ MOV #0,&SAVE_SYSRSTIV ;
+ ASMtoFORTH ;
+ .IFDEF QUIETBOOT
+ .word NOECHO ; warning ! your BOOT.4TH must to be finished with ECHO command!
+ .ENDIF
+ .word XSQUOTE ; -- addr u
+ .byte 15,"LOAD\34 BOOT.4TH\34" ; issues error 2 if no such file...
+ .word BRAN,QUIT4 ;
+; ----------------------------------;
+
+;https://forth-standard.org/standard/core/QUIT
+;c QUIT -- interpret line by line the input stream, but may be redirected as here:
+ FORTHWORD "QUIT"
+QUIT MOV #BOOT,PC
+
+ FORTHWORD "(QUIT)"
+PARENQUIT
+
+ .ELSE ; no BOOTLOADER
;https://forth-standard.org/standard/core/QUIT
;c QUIT -- interpret line by line the input stream
- FORTHWORD "QUIT"
-QUIT: MOV #RSTACK,RSP
+ FORTHWORD "QUIT"
+QUIT
+
+ .ENDIF
+ MOV #RSTACK,RSP
MOV #LSTACK,&LEAVEPTR
MOV #0,&STATE
-
- MOV #0,&SAVE_SYSRSTIV ;
-
-QUIT0 ASMtoFORTH
+QUIT0 MOV #0,&SAVE_SYSRSTIV ;
+ ASMtoFORTH
QUIT1 .word XSQUOTE
- .byte 4,13,"ok " ; CR + system prompt
-QUIT2 .word TYPE
-QUIT3 .word lit,TIB,DUP,lit,TIB_SIZE ; -- StringOrg StringOrg len
- .word ACCEPT ; -- StringOrg len'
+ .byte 3,13,"ok" ; CR + system prompt
+QUIT2 .word TYPE,SPACE
+QUIT3 .word TIB,DUP,CPL ; -- StringOrg StringOrg maxlenght
+ .word ACCEPT ; -- StringOrg len' (len' <= maxlenght)
.word SPACE
QUIT4 .word INTERPRET
- .word lit,PSTACK-2,SPFETCH,ULESS
+ .word DEPTH,ZEROLESS
.word XSQUOTE
- .byte 13,"stack empty !"
+ .byte 13,"stack empty! "
.word QABORT
.word lit,FRAM_FULL,HERE,ULESS
.word XSQUOTE
- .byte 11,"FRAM full !"
+ .byte 11,"FRAM full! "
.word QABORT
.word FSTATE,FETCH
.word QBRAN,QUIT1 ; case of interpretion state
.word XSQUOTE ; case of compilation state
- .byte 4,13," " ; CR + 3 spaces
+ .byte 3,13,32,32 ; CR + 2 blanks
.word BRAN,QUIT2
;https://forth-standard.org/standard/core/ABORT
QABORT: CMP #0,2(PSP) ; -- f c-addr u flag test
QABORTNO JZ THREEDROP
-QABORTYES MOV #4882h,&YEMIT ; restore default YEMIT = set ECHO
+QABORTYES MOV #4882h,&YEMIT ; -- c-addr u restore default YEMIT = set ECHO
+
.IFDEF SD_CARD_LOADER ; close all handles
- MOV &CurrentHdl,T
-QABORTCLOSE
- CMP #0,T
- JZ QABORTYESNOECHO
- MOV.B #0,HDLB_Token(T)
- MOV @T,T
- JMP QABORTCLOSE
+ MOV &CurrentHdl,T
+QABORTCLOSE CMP #0,T
+ JZ QABORTYESNOECHO
+ MOV.B #0,HDLB_Token(T)
+ MOV @T,T
+ JMP QABORTCLOSE
.ENDIF
- ; -- c-addr u
; ----------------------------------;
QABORTYESNOECHO ; <== WARM jumps here, thus, if NOECHO, TERMINAL can be disconnected without freezing the app
; ----------------------------------;
- CALL #QAB_DEFER ; restore default deferred words ....else WARM.
- .IFDEF MSP430ASSEMBLER ; reset all branch labels
- MOV #0,&CLRBW1
- MOV #0,&CLRBW2
- MOV #0,&CLRBW3
- MOV #0,&CLRFW1
- MOV #0,&CLRFW2
- MOV #0,&CLRFW3
- .ENDIF
-
-
+ CALL #QAB_DEFER ; restore default deferred words ....else WARM and SLEEP.
; ----------------------------------;
QABORTTERM ; wait the end of source file downloading
; ----------------------------------;
MOV #17,&TERMTXBUF ; yes move XON char into TX_buf
.ENDIF ;
.IFDEF TERMINALCTSRTS ;
- BIC.B #RTS,&HANDSHAKOUT ; set /RTS low (connected to /CTS pin of UARTtoUSB bridge)
+ BIC.B #RTS,&HANDSHAKOUT ; set /RTS low (connected to /CTS pin of UARTtoUSB bridge)
.ENDIF ;
QABORTLOOP BIC #UCRXIFG,&TERMIFG ; reset TERMIFG(UCRXIFG)
- MOV #RefillUSBtime,Y ; 2730*28 = 75 ms
-QABUSBLOOPJ ; 28~ loop : PL2303TA seems the slower USB device to refill its buffer.
- MOV #8,X ; 1~
-QABUSBLOOPI ; 3~ loop
- SUB #1,X ; 1~
- JNZ QABUSBLOOPI ; 2~
- SUB #1,Y ; 1~
- JNZ QABUSBLOOPJ ; 2~
- BIT #UCRXIFG,&TERMIFG ; 4 new char in TERMXBUF ?
+ MOV #RefillUSBtime,Y ; 2730*36 = 98 ms : PL2303TA seems to be the slower USB device to refill its TX buffer.
+QABUSBLOOPJ MOV #8,X ; 1~ <-------+
+QABUSBLOOPI NOP ; 1~ <---+ |
+ SUB #1,X ; 1~ | |
+ JNZ QABUSBLOOPI ; 2~ > 4~ loop -+ |
+ SUB #1,Y ; 1~ |
+ JNZ QABUSBLOOPJ ; 2~ --> 36~ loop --+
+ BIT #UCRXIFG,&TERMIFG ; 4 new char in TERMXBUF after refill time out ?
JNZ QABORTLOOP ; 2 yes, the input stream (download source file) is still active
-
; ----------------------------------;
; Display WARM/ABORT message ;
; ----------------------------------;
mDOCOL ; no, the input stream is quiet (end of download source file)
.word XSQUOTE ; -- c-addr u c-addr1 u1
- .byte 4,1Bh,"[7m" ;
+ .byte 4,27,"[7m" ;
.word TYPE ; -- c-addr u set reverse video
.word TYPE ; -- type abort message
.word XSQUOTE ; -- c-addr2 u2
- .byte 4,1Bh,"[0m" ;
+ .byte 4,27,"[0m" ;
.word TYPE ; -- set normal video
.word FORTH,ONLY ; to quit assembler and so to abort any ASSEMBLER definitions
.word DEFINITIONS ; reset CURRENT directory
+ .word PWR_STATE ; wipe, if exist, not well finished definition and its previous MARKER
.IFDEF LOWERCASE
.word CAPS_ON ;
.ENDIF
FORTHWORDIMM "ABORT\34" ; immediate
ABORTQUOTE: mDOCOL
-
- .IFDEF LOWERCASE
- .word CAPS_OFF,SQUOTE,CAPS_ON
- .word lit,QABORT,COMMA
- .word EXIT
- .ELSE
.word SQUOTE
.word lit,QABORT,COMMA
.word EXIT
- .ENDIF ; LOWERCASE
-
;https://forth-standard.org/standard/core/Tick
-;C ' -- xt find word in dictionary
+;C ' -- xt find word in dictionary and leave on stack its execution address
FORTHWORD "'"
TICK: mDOCOL ; separator -- xt
.word FBLANK,WORDD,FIND ; Z=1 if not found
BACKSLASH: MOV &SOURCE_LEN,&TOIN ;
mNEXT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; COMPILER
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+
+;https://forth-standard.org/standard/core/Bracket
+;C [ -- enter interpretative state
+ FORTHWORDIMM "[" ; immediate
+LEFTBRACKET: MOV #0,&STATE
+ mNEXT
+
+;https://forth-standard.org/standard/core/right-bracket
+;C ] -- enter compiling state
+ FORTHWORD "]"
+RIGHTBRACKET: MOV #-1,&STATE
+ mNEXT
+
+;https://forth-standard.org/standard/core/BracketTick
+;C ['] <name> -- find word & compile it as literal
+ FORTHWORDIMM "[']" ; immediate word, i.e. word executed also during compilation
+BRACTICK: mDOCOL
+ .word TICK ; get xt of <name>
+ .word lit,lit,COMMA ; append LIT action
+ .word COMMA,EXIT ; append xt literal
+
+;https://forth-standard.org/standard/core/DEFERStore
+;C DEFER! xt CFA_DEFER -- ; store xt to the address after DODEFER
+; FORTHWORD "DEFER!"
+DEFERSTORE: MOV @PSP+,2(TOS) ; -- CFA_DEFER xt --> [CFA_DEFER+2]
+ MOV @PSP+,TOS ; --
+ mNEXT
+
+;https://forth-standard.org/standard/core/IS
+;C IS <name> xt --
+; used as is :
+; DEFER DISPLAY create a "do nothing" definition (2 CELLS)
+; inline command : ' U. IS DISPLAY U. becomes the runtime of the word DISPLAY
+; or in a definition : ... ['] U. IS DISPLAY ...
+; KEY, EMIT, CR, ACCEPT and WARM are DEFERred words
+
+; as IS replaces the PFA value of a "PFA word", it may be also used with VARIABLE and CONSTANT words...
+
+ FORTHWORDIMM "IS" ; immediate
+IS: mDOCOL
+ .word FSTATE,FETCH
+ .word QBRAN,IS_EXEC
+IS_COMPILE .word BRACTICK ; find the word, compile its CFA as literal
+ .word lit,DEFERSTORE,COMMA ; compile DEFERSTORE
+ .word EXIT
+IS_EXEC .word TICK,DEFERSTORE ; find the word, leave its CFA on the stack and execute DEFERSTORE
+ .word EXIT
+
+;https://forth-standard.org/standard/core/IMMEDIATE
+;C IMMEDIATE -- make last definition immediate
+ FORTHWORD "IMMEDIATE"
+IMMEDIATE: MOV &LAST_NFA,W
+ BIS.B #80h,0(W)
+ mNEXT
+
+;https://forth-standard.org/standard/core/RECURSE
+;C RECURSE -- recurse to current definition (compile current definition)
+ FORTHWORDIMM "RECURSE" ; immediate
+RECURSE: MOV &DDP,X ;
+ MOV &LAST_CFA,0(X) ;
+ ADD #2,&DDP ;
+ mNEXT
+
+
+;https://forth-standard.org/standard/core/POSTPONE
+ FORTHWORDIMM "POSTPONE" ; immediate
+POSTPONE: mDOCOL
+ .word FBLANK,WORDD,FIND,QDUP
+ .word QBRAN,NotFound
+ .word ZEROLESS ; immediate ?
+ .word QBRAN,POST1 ; yes
+ .word lit,lit,COMMA,COMMA
+ .word lit,COMMA
+POST1: .word COMMA,EXIT
+
+
+;;Z ?REVEAL -- if no stack mismatch, link this created word in the CURRENT vocabulary
+; FORTHWORD "REVEAL"
+QREVEAL: CMP PSP,&LAST_PSP ; Check SP with its saved value by :
+ JZ GOOD_CSP ; if no stack mismatch. See MARKER below
+BAD_CSP mDOCOL
+ .word XSQUOTE
+ .byte 15,"stack mismatch!"
+FQABORTYES .word QABORTYES
; HEADER create an header for a new word. Max count of chars = 126
-; common code for VARIABLE, CONSTANT, CREATE, DEFER, :, CODE, ASM.
+; common code for VARIABLE, CONSTANT, CREATE, DEFER, :, MARKER, CODE, ASM.
; don't link created word in vocabulary.
-
HEADER: mDOCOL
.word CELLPLUSALIGN ; ALIGN then make room for LFA
.word FBLANK,WORDD ;
; X is LAST_THREAD > used by VARIABLE, CONSTANT, CREATE, DEFER and :
; Y is NFA )
-BAD_CSP mDOCOL
- .word XSQUOTE
- .byte 15,"stack mismatch!"
-FQABORTYES .word QABORTYES
-
-;;Z ?REVEAL -- link last created word in vocabulary if no stack mismatch
-; FORTHWORD "REVEAL"
-QREVEAL: CMP PSP,&LAST_CSP ; check actual SP with saved value by :
- JNZ BAD_CSP ; if stack mismatch
- MOV &LAST_NFA,Y ;
- MOV &LAST_THREAD,X ;
-REVEAL MOV @X,-2(Y) ; [LAST_THREAD] --> LFA
- MOV Y,0(X) ; LAST_NFA --> [LAST_THREAD]
- mNEXT
-
-
;https://forth-standard.org/standard/core/VARIABLE
;C VARIABLE <name> -- define a Forth VARIABLE
FORTHWORD "VARIABLE"
-VARIABLE: CALL #HEADER ; -- W = DDP = CFA + 2 words
- MOV #DOVAR,-4(W)
- JMP REVEAL
+VARIABLE: CALL #HEADER ; W = DDP = CFA + 2 words
+ MOV #DOVAR,-4(W) ; CFA = DOVAR
+ JMP REVEAL ; PFA = undefined
;https://forth-standard.org/standard/core/CONSTANT
-;C CONSTANT <name> n -- define a Forth CONSTANT
+;C CONSTANT <name> n -- define a Forth CONSTANT (it's also an alias of VALUE)
FORTHWORD "CONSTANT"
-CONSTANT: CALL #HEADER ; -- W = DDP
- MOV #DOCON,-4(W) ; compile exec
- MOV TOS,-2(W) ; compile TOS as constant
+CONSTANT: CALL #HEADER ; W = DDP = CFA + 2 words
+ MOV #DOCON,-4(W) ; CFA = DOCON
+ MOV TOS,-2(W) ; PFA = n
MOV @PSP+,TOS
JMP REVEAL
+;;https://forth-standard.org/standard/core/VALUE
+;;( x "<spaces>name" -- ) define a Forth VALUE
+;;Skip leading space delimiters. Parse name delimited by a space.
+;;Create a definition for name with the execution semantics defined below,
+;;with an initial value equal to x.
+;
+;;name Execution: ( -- x )
+;;Place x on the stack. The value of x is that given when name was created,
+;;until the phrase x TO name is executed, causing a new value of x to be assigned to name.
+;
+;;TO name Run-time: ( x -- )
+;;Assign the value x to name.
+;
+; FORTHWORD "VALUE"
+; JMP CONSTANT
+;
+; FORTHWORDIMM "TO"
+; JMP IS
+
+
;https://forth-standard.org/standard/core/CREATE
-;C CREATE <name> -- define a CONSTANT with its next address
+;C CREATE <name> -- define a CONSTANT with its next address
; Execution: ( -- a-addr ) ; a-addr is the address of name's data field
; ; the execution semantics of name may be extended by using DOES>
FORTHWORD "CREATE"
CREATE: CALL #HEADER ; -- W = DDP
- MOV #DOCON,-4(W) ;4 first CELL = DOCON
- MOV W,-2(W) ;3 second CELL = HERE
+ MOV #DOCON,-4(W) ;4 CFA = DOCON
+ MOV W,-2(W) ;3 PFA = next address
JMP REVEAL
;https://forth-standard.org/standard/core/DOES
;C DOES> -- set action for the latest CREATEd definition
FORTHWORD "DOES>"
DOES: MOV &LAST_CFA,W ; W = CFA of latest CREATEd word that becomes a master word
- MOV #DODOES,0(W) ; remplace code of CFA (DOCON) by DODOES
- MOV IP,2(W) ; remplace parameter of PFA (HERE) by the address after DOES> as execution address
+ MOV #DODOES,0(W) ; replace old CFA (DOCON) by new CFA (DODOES)
+ MOV IP,2(W) ; replace old PFA by the address after DOES> as execution address
MOV @RSP+,IP ; exit of the new created word
NEXTADR mNEXT
;https://forth-standard.org/standard/core/DEFER
-;X DEFER <name> -- ; create a word to be deferred
+;C DEFER "<spaces>name" --
+;Skip leading space delimiters. Parse name delimited by a space.
+;Create a definition for name with the execution semantics defined below.
+
+;name Execution: --
+;Execute the xt that name is set to execute, i.e. NEXT (nothing),
+;until the phrase ' word IS name is executed, causing a new value of xt to be assigned to name.
+
FORTHWORD "DEFER"
DEFER: CALL #HEADER
- MOV #4030h,-4(W) ;4 first CELL = MOV @PC+,PC = BR...
- MOV #NEXTADR,-2(W) ;4 second CELL = address of mNEXT below : created word does nothing by default
+ MOV #4030h,-4(W) ;4 CFA = MOV @PC+,PC = BR...
+ MOV #NEXTADR,-2(W) ;4 PFA = address of NEXT: created word does nothing by default
JMP REVEAL
-;https://forth-standard.org/standard/core/Bracket
-;C [ -- enter interpretative state
- FORTHWORDIMM "[" ; immediate
-LEFTBRACKET: MOV #0,&STATE
- mNEXT
-
-;https://forth-standard.org/standard/core/right-bracket
-;C ] -- enter compiling state
- FORTHWORD "]"
-RIGHTBRACKET: MOV #-1,&STATE
- mNEXT
-
-;https://forth-standard.org/standard/core/RECURSE
-;C RECURSE -- recurse to current definition (compile current definition)
- FORTHWORDIMM "RECURSE" ; immediate
-RECURSE: MOV &DDP,X ;
- MOV &LAST_CFA,0(X) ;
- ADD #2,&DDP ;
- mNEXT
;https://forth-standard.org/standard/core/Colon
;C : <name> -- begin a colon definition
.CASE 1
MOV #DOCOL1,-4(W) ; compile CALL rDOCOL
SUB #2,&DDP
-
.CASE 2
MOV #DOCOL1,-4(W) ; compile PUSH IP 3~
MOV #DOCOL2,-2(W) ; compile CALL rEXIT
-
.CASE 3 ; inlined DOCOL
MOV #DOCOL1,-4(W) ; compile PUSH IP 3~
MOV #DOCOL2,-2(W) ; compile MOV PC,IP 1~
MOV #DOCOL3,0(W) ; compile ADD #4,IP 1~
MOV #NEXT,+2(W) ; compile MOV @IP+,PC 4~
ADD #4,&DDP
-
- .ENDCASE ; DTC
+ .ENDCASE ; of DTC
MOV #-1,&STATE ; enter compiling state
-SAVE_PSP MOV PSP,&LAST_CSP ; save PSP for check compiling, used by QREVEAL
+SAVE_PSP MOV PSP,&LAST_PSP ; save PSP for check compiling, used by QREVEAL
mNEXT
;https://forth-standard.org/standard/core/Semi
;C ; -- end a colon definition
FORTHWORDIMM ";" ; immediate
SEMICOLON: CMP #0,&STATE ; interpret mode : semicolon becomes a comment separator
- JZ BACKSLASH ; tip: ; it's transparent to the preprocessor, so semicolon comments are kept in file.4th
+ JZ BACKSLASH ; tip: ";" is transparent to the preprocessor, so semicolon comments are kept in file.4th
mDOCOL ; compile mode
.word lit,EXIT,COMMA
.word QREVEAL,LEFTBRACKET,EXIT
-;https://forth-standard.org/standard/core/IMMEDIATE
-;C IMMEDIATE -- make last definition immediate
- FORTHWORD "IMMEDIATE"
-IMMEDIATE: MOV &LAST_NFA,W
- BIS.B #80h,0(W)
- mNEXT
-
-;https://forth-standard.org/standard/core/DEFERStore
-;CE DEFER! xt CFA_DEFER -- ; store xt to the address after DODEFER
-; FORTHWORD "DEFER!"
-DEFERSTORE: MOV @PSP+,2(TOS) ; -- CFA_DEFER xt --> [CFA_DEFER+2]
- MOV @PSP+,TOS ; --
- mNEXT
-
-;https://forth-standard.org/standard/core/IS
-;C IS <name> xt --
-; used as is :
-; DEFER DISPLAY create a "do nothing" definition (2 CELLS)
-; inline command : ' U. IS DISPLAY U. becomes the runtime of the word DISPLAY
-; or in a definition : ... ['] U. IS DISPLAY ...
-; KEY, EMIT, CR, ACCEPT and WARM are DEFERred words
-
- FORTHWORDIMM "IS" ; immediate
-IS: mDOCOL
- .word FSTATE,FETCH
- .word QBRAN,IS_EXEC
-IS_COMPILE .word BRACTICK ; find the word, compile its CFA as literal
- .word lit,DEFERSTORE,COMMA ; compile DEFERSTORE
- .word EXIT
-IS_EXEC .word TICK,DEFERSTORE ; find the word, leave its CFA on the stack and execute DEFERSTORE
- .word EXIT
-
-;https://forth-standard.org/standard/core/BracketTick
-;C ['] <name> -- find word & compile it as literal
- FORTHWORDIMM "[']" ; immediate word, i.e. word executed also during compilation
-BRACTICK: mDOCOL
- .word TICK ; get xt of <name>
- .word lit,lit,COMMA ; append LIT action
- .word COMMA,EXIT ; append xt literal
-
-;https://forth-standard.org/standard/core/POSTPONE
- FORTHWORDIMM "POSTPONE" ; immediate
-POSTPONE: mDOCOL
- .word FBLANK,WORDD,FIND,QDUP
- .word QBRAN,NotFound
- .word ZEROLESS ; immediate ?
- .word QBRAN,POST1 ; yes
- .word lit,lit,COMMA,COMMA
- .word lit,COMMA
-POST1: .word COMMA,EXIT
-
+ .IFDEF CONDCOMP
;; CORE EXT MARKER
+;;https://forth-standard.org/standard/core/MARKER
;;( "<spaces>name" -- )
;;Skip leading space delimiters. Parse name delimited by a space. Create a definition for name
;;with the execution semantics defined below.
;;of any structures still existing that could refer to deleted definitions or deallocated data space is
;;not necessarily provided. No other contextual information such as numeric base is affected
-; FORTHWORD "MARKER"
-; CALL #HEADER ;4
-; MOV #DODOES,-4(W) ;4 CFA = DODOES
-; MOV #MARKER_DOES,-2(W) ;4 PFA = MARKER_DOES
-; ADD #4,&DDP ;3
-; MOV &LASTVOC,0(W) ;5 [BODY] = VOCLINK to be restored
-; MOV Y,2(W) ;3 [BODY+2] = NFA
-; SUB #2,2(W) ;4 [BODY+2] = LFA = DP to be restored
-; JMP REVEAL ;2
-
-MARKER_DOES
- .IFDEF VOCABULARY_SET
- .word FORTH,ONLY,DEFINITIONS
- .ENDIF
- FORTHtoASM ; -- BODY IP is free
- MOV @TOS+,W ; -- BODY+2 W= old VOCLINK =VLK
- MOV W,&LASTVOC ; -- BODY+2 restore LASTVOC
- MOV @TOS,TOS ; -- OLD_DP
- MOV TOS,&DDP ; -- OLD_DP restore DP
-
- .SWITCH THREADS
-
- .CASE 1
-MARKALLVOC MOV W,Y ; -- OLD_DP W=VLK Y=VLK
-MRKWORDLOOP MOV -2(Y),Y ; -- OLD_DP W=VLK Y=NFA
- CMP Y,TOS ; -- OLD_DP CMP = TOS-Y : OLD_DP-NFA
- JNC MRKWORDLOOP ; loop back if TOS<Y : OLD_DP<NFA
- MOV Y,-2(W) ; W=VLK X=THD Y=NFA refresh thread with good NFA
- MOV @W,W ; -- OLD_DP W=[VLK] = next voclink
- CMP #0,W ; -- OLD_DP W=[VLK] = next voclink end of vocs ?
- JNZ MARKALLVOC ; -- OLD_DP W=VLK no : loopback
-
- .ELSECASE ; multi threads
-
-MARKALLVOC MOV #THREADS,IP ; -- OLD_DP W=VLK
- MOV W,X ; -- OLD_DP W=VLK X=VLK
-MRKTHRDLOOP MOV X,Y ; -- OLD_DP W=VLK X=VLK Y=VLK
- SUB #2,X ; -- OLD_DP W=VLK X=THD (thread ((case-2)to0))
-MRKWORDLOOP MOV -2(Y),Y ; -- OLD_DP W=VLK Y=NFA
- CMP Y,TOS ; -- OLD_DP CMP = TOS-Y : OLD_DP-NFA
- JNC MRKWORDLOOP ; loop back if TOS<Y : OLD_DP<NFA
-MARKTHREAD MOV Y,0(X) ; W=VLK X=THD Y=NFA refresh thread with good NFA
- SUB #1,IP ; -- OLD_DP W=VLK X=THD Y=NFA IP=CFT-1
- JNZ MRKTHRDLOOP ; loopback to compare NFA in next thread (thread-1)
- MOV @W,W ; -- OLD_DP W=[VLK] = next voclink
- CMP #0,W ; -- OLD_DP W=[VLK] = next voclink end of vocs ?
- JNZ MARKALLVOC ; -- OLD_DP W=VLK no : loopback
-
- .ENDCASE ; THREADS ; -- HERE
+MARKER_DOES FORTHtoASM ; execution part
+ MOV @RSP+,IP ; -- PFA
+ MOV @TOS+,&INIVOC ; set VOC_LINK value for RST_STATE
+ MOV @TOS,&INIDP ; set DP value for RST_STATE
+ MOV @PSP+,TOS ; --
+ JMP RST_STATE ; execute RST_STATE, PWR_STATE then STATE_DOES
+
+ FORTHWORD "MARKER" ; definition part
+ CALL #HEADER ;4 W = DP+4
+ MOV #DODOES,-4(W) ;4 CFA = DODOES
+ MOV #MARKER_DOES,-2(W) ;4 PFA = MARKER_DOES
+ MOV &LASTVOC,0(W) ;5 [BODY] = VOCLINK to be restored
+ SUB #2,Y ;1 Y = LFA
+ MOV Y,2(W) ;3 [BODY+2] = LFA = DP to be restored
+ ADD #4,&DDP ;3
+
+ .ENDIF ; CONDCOMP
+
+GOOD_CSP MOV &LAST_NFA,Y ;
+ MOV &LAST_THREAD,X ;
+REVEAL MOV @X,-2(Y) ; [LAST_THREAD] --> LFA
+ MOV Y,0(X) ; LAST_NFA --> [LAST_THREAD]
+ mNEXT
- MOV @PSP+,TOS ;
- MOV @RSP+,IP ;
- mNEXT ;
-; ----------------------------------;
; ----------------------------------------------------------------------
; CONTROL STRUCTURES
IFF: SUB #2,PSP ;
MOV TOS,0(PSP) ;
MOV &DDP,TOS ; -- HERE
- MOV #QBRAN,0(TOS) ; -- HERE
- ADD #4,&DDP ; compile two words
+ ADD #4,&DDP ; compile one word, reserve one word
+ MOV #QBRAN,0(TOS) ; -- HERE compile QBRAN
CELLPLUS ADD #2,TOS ; -- HERE+2=IFadr
mNEXT
+
;https://forth-standard.org/standard/core/ELSE
;C ELSE IFadr -- ELSEadr resolve forward IF branch, leave ELSEadr on stack
FORTHWORDIMM "ELSE" ; immediate
-ELSS: MOV &DDP,W
- MOV #bran,0(W)
- ADD #4,W ; W=HERE+4
- MOV W,&DDP ; compile two words
+ELSS: ADD #4,&DDP ; make room to compile two words
+ MOV &DDP,W ; W=HERE+4
+ MOV #bran,-4(W)
MOV W,0(TOS) ; HERE+4 ==> [IFadr]
SUB #2,W ; HERE+2
MOV W,TOS ; -- ELSEadr
;C UNTIL BEGINadr -- resolve conditional backward branch
FORTHWORDIMM "UNTIL" ; immediate
UNTIL: MOV #qbran,X
-UNTIL1 MOV &DDP,W ; W = HERE
- ADD #4,&DDP ; compile two words
- MOV X,0(W) ; compile Bran or qbran at HERE
- MOV TOS,2(W) ; compile bakcward adr at HERE+2
+UNTIL1 ADD #4,&DDP ; compile two words
+ MOV &DDP,W ; W = HERE
+ MOV X,-4(W) ; compile Bran or qbran at HERE
+ MOV TOS,-2(W) ; compile bakcward adr at HERE+2
MOV @PSP+,TOS
mNEXT
FORTHWORDIMM "DO" ; immediate
DO: SUB #2,PSP ;
MOV TOS,0(PSP) ;
- MOV &DDP,TOS ; -- HERE
- MOV #xdo,0(TOS)
- ADD #2,TOS ; -- HERE+2
- MOV TOS,&DDP ; compile one word
+ ADD #2,&DDP ; make room to compile xdo
+ MOV &DDP,TOS ; -- HERE+2
+ MOV #xdo,-2(TOS) ; compile xdo
ADD #2,&LEAVEPTR ; -- HERE+2 LEAVEPTR+2
MOV &LEAVEPTR,W ;
MOV #0,0(W) ; -- HERE+2 L-- 0
mNEXT
;https://forth-standard.org/standard/core/LOOP
-;C LOOP DOadr -- L-- 0 a1 a2 .. aN
+;C LOOP DOadr -- L-- an an-1 .. a1 0
FORTHWORDIMM "LOOP" ; immediate
LOO: MOV #xloop,X
-ENDLOOP MOV &DDP,W
- ADD #4,&DDP ; compile two words
- MOV X,0(W) ; xloop --> HERE
- MOV TOS,2(W) ; DOadr --> HERE+2
+ENDLOOP ADD #4,&DDP ; make room to compile two words
+ MOV &DDP,W
+ MOV X,-4(W) ; xloop --> HERE
+ MOV TOS,-2(W) ; DOadr --> HERE+2
; resolve all "leave" adr
LEAVELOOP MOV &LEAVEPTR,TOS ; -- Adr of top LeaveStack cell
SUB #2,&LEAVEPTR ; --
MOV @TOS,TOS ; -- first LeaveStack value
CMP #0,TOS ; -- = value left by DO ?
JZ ENDLOOPEND
- MOV &DDP,0(TOS) ; move adr after loop as UNLOOP adr
+ MOV W,0(TOS) ; move adr after loop as UNLOOP adr
JMP LEAVELOOP
ENDLOOPEND MOV @PSP+,TOS
mNEXT
;https://forth-standard.org/standard/core/PlusLOOP
-;C +LOOP adrs -- L: 0 a1 a2 .. aN --
+;C +LOOP adrs -- L-- an an-1 .. a1 0
FORTHWORDIMM "+LOOP" ; immediate
PLUSLOOP: MOV #xploop,X
JMP ENDLOOP
MOV @PSP+,X ; src adrs
MOV @PSP+,TOS ; pop new TOS
CMP #0,W
- JZ MOVE_X
+ JZ MOVE_X ; already made !
CMP X,Y ; Y-X ; dst - src
JZ MOVE_X ; already made !
JC MOVEUP ; U>= if dst > src
ADD W,X
MOVUP1 SUB #1,X
SUB #1,Y
- MOV.B @X,0(Y) ; if X=src < Y=dst copy W bytes up
+MOVUP2 MOV.B @X,0(Y) ; if X=src < Y=dst copy W bytes up
SUB #1,W
JNZ MOVUP1
MOVE_X mNEXT
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; WORDS SET for VOCABULARY, not ANS compliant
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
;X VOCABULARY -- create a vocabulary
.IFDEF VOCABULARY_SET
FORTHWORD "ALSO"
.ENDIF ; VOCABULARY_SET
-ALSO: MOV #12,W ; -- move up 6 words
+ALSO: MOV #14,W ; -- move up 7 words
MOV #CONTEXT,X ; X=src
MOV #CONTEXT+2,Y ; Y=dst
JMP MOVEUP ; src < dst
DEFINITIONS: MOV &CONTEXT,&CURRENT
mNEXT
-; ----------------------------------------------------------------------
-; IMPROVED POWER ON RESET AND INITIALIZATION
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
+; IMPROVED ON/OFF AND RESET
+;-------------------------------------------------------------------------------
+
+STATE_DOES
+ .IFDEF VOCABULARY_SET
+ .word FORTH,ONLY,DEFINITIONS ; doesn't restore search order pointers
+ .ENDIF
+ FORTHtoASM ; -- BODY IP is free
+ MOV @TOS+,W ; -- BODY+2 W = old VOCLINK = VLK
+ MOV W,&LASTVOC ; -- BODY+2 restore LASTVOC
+ MOV @TOS,TOS ; -- OLD_DP
+ MOV TOS,&DDP ; -- OLD_DP restore DP
+
+ .SWITCH THREADS
+ .CASE 1 ; mono thread vocabularies
+MARKALLVOC MOV W,Y ; -- OLD_DP W=VLK Y=VLK
+MRKWORDLOOP MOV -2(Y),Y ; -- OLD_DP W=VLK Y=NFA
+ CMP Y,TOS ; -- OLD_DP CMP = TOS-Y : OLD_DP-NFA
+ JNC MRKWORDLOOP ; loop back if TOS<Y : OLD_DP<NFA
+ MOV Y,-2(W) ; W=VLK X=THD Y=NFA refresh thread with good NFA
+ MOV @W,W ; -- OLD_DP W=[VLK] = next voclink
+ CMP #0,W ; -- OLD_DP W=[VLK] = next voclink end of vocs ?
+ JNZ MARKALLVOC ; -- OLD_DP W=VLK no : loopback
+
+ .ELSECASE ; multi threads vocabularies
+MARKALLVOC MOV #THREADS,IP ; -- OLD_DP W=VLK
+ MOV W,X ; -- OLD_DP W=VLK X=VLK
+MRKTHRDLOOP MOV X,Y ; -- OLD_DP W=VLK X=VLK Y=VLK
+ SUB #2,X ; -- OLD_DP W=VLK X=THD (thread ((case-2)to0))
+MRKWORDLOOP MOV -2(Y),Y ; -- OLD_DP W=VLK Y=NFA
+ CMP Y,TOS ; -- OLD_DP CMP = TOS-Y : OLD_DP-NFA
+ JNC MRKWORDLOOP ; loop back if TOS<Y : OLD_DP<NFA
+MARKTHREAD MOV Y,0(X) ; W=VLK X=THD Y=NFA refresh thread with good NFA
+ SUB #1,IP ; -- OLD_DP W=VLK X=THD Y=NFA IP=CFT-1
+ JNZ MRKTHRDLOOP ; loopback to compare NFA in next thread (thread-1)
+ MOV @W,W ; -- OLD_DP W=[VLK] = next voclink
+ CMP #0,W ; -- OLD_DP W=[VLK] = next voclink end of vocs ?
+ JNZ MARKALLVOC ; -- OLD_DP W=VLK no : loopback
- FORTHWORD "PWR_STATE" ; set dictionary in same state as OFF/ON
+ .ENDCASE ; of THREADS ; -- DDP
+ MOV @PSP+,TOS ;
+ MOV @RSP+,IP ;
+ mNEXT ;
+
+ FORTHWORD "PWR_STATE" ; reinitialize dictionary in same state as after OFF/ON
PWR_STATE: mDODOES ; DOES part of MARKER : resets pointers DP, voclink and latest
- .word MARKER_DOES ; execution vector of MARKER DOES
-MARKVOC .word lastvoclink ; as voclink value
-MARKDP .word ROMDICT ; as DP value
+ .word STATE_DOES ; execution vector of PWR_STATE
+MARKVOC .word lastvoclink ; initialised by forthMSP430FR.asm as voclink value
+MARKDP .word ROMDICT ; initialised by forthMSP430FR.asm as DP value
- FORTHWORD "PWR_HERE" ; define dictionary bound for PWR_STATE
-PWR_HERE: MOV &DDP,&MARKDP
- MOV &LASTVOC,&MARKVOC
- JMP PWR_STATE
+ FORTHWORD "RST_STATE" ; reinitialize dictionary in same state as after <reset>
+RST_STATE: MOV &INIVOC,&MARKVOC ; INI value saved in FRAM
+ MOV &INIDP,&MARKDP ; INI value saved in FRAM
+ JMP PWR_STATE
- FORTHWORD "RST_STATE" ; set dictionary in same state as <reset>
-RST_STATE: MOV &INIDP,&MARKDP
- MOV &INIVOC,&MARKVOC
- JMP PWR_STATE
- FORTHWORD "RST_HERE" ; define dictionary bound for RST_STATE
-RST_HERE: MOV &DDP,&INIDP
- MOV &LASTVOC,&INIVOC
- JMP PWR_HERE ; and reset PWR_STATE same as RST_STATE
+ FORTHWORD "PWR_HERE" ; define dictionary bound for power OFF/ON
+PWR_HERE: MOV &LASTVOC,&MARKVOC
+ MOV &DDP,&MARKDP
+ mNEXT
+
+ FORTHWORD "RST_HERE" ; define dictionary bound for <reset>
+RST_HERE: MOV &LASTVOC,&INIVOC
+ MOV &DDP,&INIDP
+ JMP PWR_HERE ; and init PWR_STATE same as RST_STATE
WIPE_DEFER MOV #PARENWARM,&WARM+2
.IFDEF SD_CARD_LOADER
MOV #PARENACCEPT,&ACCEPT+2 ; always restore default console input
.ENDIF
+ .IFDEF MSP430ASSEMBLER ; reset all branch labels
+ MOV #0,&CLRBW1
+ MOV #0,&CLRBW2
+ MOV #0,&CLRBW3
+ MOV #0,&CLRFW1
+ MOV #0,&CLRFW2
+ MOV #0,&CLRFW3
+ .ENDIF
+ MOV #10,&BASE
+
RET
- FORTHWORD "WIPE" ; restore the program as it was in FastForth.hex file
+ FORTHWORD "WIPE" ; restore the program as it was in forthMSP430FR.txt file
WIPE:
; reset JTAG and BSL signatures ; unlock JTAG, SBW and BSL
MOV #SIGNATURES,X
; reset all FACTORY defered words to allow execution from SD_Card
CALL #WIPE_DEFER
; reinit this factory values :
- MOV #ROMDICT,&DDP
- MOV #lastvoclink,&LASTVOC
+ MOV #ROMDICT,&INIDP
+ MOV #lastvoclink,&INIVOC
; then reinit RST_STATE and PWR_STATE
- JMP RST_HERE
+ JMP RST_STATE
+
+; ------------------------------------------------------------------------------------------
+; forthMSP430FR : CONDITIONNAL COMPILATION
+; ------------------------------------------------------------------------------------------
+ .IFDEF CONDCOMP ; 2- conditionnal compilation part
+ .IFNDEF LOWERCASE
+ .WARNING "uncomment LOWERCASE ADD-ON to pass coretest COMPARE !"
+ .ENDIF ; LOWERCASE
+
+;COMPARE ( c-addr1 u1 c-addr2 u2 -- n )
+;https://forth-standard.org/standard/string/COMPARE
+;Compare the string specified by c-addr1 u1 to the string specified by c-addr2 u2.
+;The strings are compared, beginning at the given addresses, character by character,
+;up to the length of the shorter string or until a difference is found.
+;If the two strings are identical, n is zero.
+;If the two strings are identical up to the length of the shorter string,
+; n is minus-one (-1) if u1 is less than u2 and one (1) otherwise.
+;If the two strings are not identical up to the length of the shorter string,
+; n is minus-one (-1) if the first non-matching character in the string specified by c-addr1 u1
+; has a lesser numeric value than the corresponding character in the string specified by c-addr2 u2 and one (1) otherwise.
+ FORTHWORD "COMPARE"
+COMPARE
+ MOV TOS,S ;1 u2 = S
+ MOV @PSP+,Y ;2 addr2 = Y
+ MOV @PSP+,T ;2 u1 = T
+ MOV @PSP+,X ;2 addr1 = X
+COMPAR1 MOV T,TOS ;1
+ ADD S,TOS ;1
+ JZ COMPEQUAL ;2 end of all successfull comparisons
+ SUB #1,T ;1
+ JN COMPLESS ;2 u1<u2
+ SUB #1,S ;1
+ JN COMPGREATER ;2 u2<u1
+ ADD #1,X ;1
+ CMP.B @Y+,-1(X) ;4 char1-char2
+ JZ COMPAR1 ;2 char1=char2 17~ loop
+ JHS COMPGREATER ;2 char1>char2
+COMPLESS ; char1<char2
+ MOV #-1,TOS ;1
+ MOV @IP+,PC ;4
+COMPGREATER
+ MOV #1,TOS ;1
+COMPEQUAL
+ MOV @IP+,PC ;4 20 words
+
+;[THEN]
+;https://forth-standard.org/standard/tools/BracketTHEN
+ FORTHWORDIMM "[THEN]" ; do nothing
+ mNEXT
+
+ONEMIN
+ SUB #1,TOS
+ mNEXT
+
+;[ELSE]
+;Compilation:
+;Perform the execution semantics given below.
+;Execution:
+;( "<spaces>name ..." -- )
+;Skipping leading spaces, parse and discard space-delimited words from the parse area,
+;including nested occurrences of [IF] ... [THEN] and [IF] ... [ELSE] ... [THEN],
+;until the word [THEN] has been parsed and discarded.
+;If the parse area becomes exhausted, it is refilled as with REFILL.
+ FORTHWORDIMM "[ELSE]"
+BRACKETELSE
+ mDOCOL
+ .word lit,1 ; 1
+BRACKETELSE1 ; BEGIN
+BRACKETELSE2 ; BEGIN
+ .word FBLANK,WORDD,COUNT ; BL WORD COUNT
+ .word DUP,QBRAN,BRACKETELSE10 ; DUP WHILE
+ .word OVER,OVER ; 2DUP
+ .word XSQUOTE ; S" [IF]"
+ .byte 4,"[IF]" ;
+ .word COMPARE ; COMPARE
+ .word QZBRAN,BRACKETELSE3 ; 0= IF
+ .word TWODROP,ONEPLUS ; 2DROP 1+
+ .word BRAN,BRACKETELSE8 ; (ENDIF)
+BRACKETELSE3 ; ELSE
+ .word OVER,OVER ; OVER OVER
+ .word XSQUOTE ; S" [ELSE]"
+ .byte 6,"[ELSE]" ;
+ .word COMPARE ; COMPARE
+ .word QZBRAN,BRACKETELSE5 ; 0= IF
+ .word TWODROP,ONEMIN ; 2DROP 1-
+ .word DUP,QBRAN,BRACKETELSE4 ; DUP IF
+ .word ONEPLUS ; 1+
+BRACKETELSE4 ; THEN
+ .word BRAN,BRACKETELSE7 ; (ENDIF)
+BRACKETELSE5 ; ELSE
+ .word XSQUOTE ; S" [THEN]"
+ .byte 6,"[THEN]" ;
+ .word COMPARE ; COMPARE
+ .word QZBRAN,BRACKETELSE6 ; 0= IF
+ .word ONEMIN ; 1-
+BRACKETELSE6 ; THEN
+BRACKETELSE7 ; THEN
+BRACKETELSE8 ; THEN
+ .word QDUP ; ?DUP
+ .word QZBRAN,BRACKETELSE9 ; 0= IF
+ .word EXIT ; EXIT
+BRACKETELSE9 ; THEN
+ .word BRAN,BRACKETELSE2 ; REPEAT
+BRACKETELSE10 ;
+ .word TWODROP ; 2DROP
+ .word XSQUOTE ;
+ .byte 3,13,107,111 ;
+ .word TYPE,SPACE ; CR ." ko " to show false branch of conditionnal compilation
+ .word TIB,DUP,CPL ; REFILL
+ .word ACCEPT ; -- StringOrg len' (len' <= TIB_LEN)
+ FORTHtoASM ;
+ MOV #0,&TOIN ;
+ MOV TOS,&SOURCE_LEN ; -- StringOrg len'
+ MOV @PSP+,&SOURCE_ADR ; -- len'
+ MOV @PSP+,TOS ; --
+ MOV #BRACKETELSE1,IP ; AGAIN
+ mNEXT ; 78 words
+
+
+;[IF]
+;https://forth-standard.org/standard/tools/BracketIF
+;Compilation:
+;Perform the execution semantics given below.
+;Execution: ;( flag | flag "<spaces>name ..." -- )
+;If flag is true, do nothing. Otherwise, skipping leading spaces,
+; parse and discard space-delimited words from the parse area,
+; including nested occurrences of [IF] ... [THEN] and [IF] ... [ELSE] ... [THEN],
+; until either the word [ELSE] or the word [THEN] has been parsed and discarded.
+;If the parse area becomes exhausted, it is refilled as with REFILL. [IF] is an immediate word.
+;An ambiguous condition exists if [IF] is POSTPONEd,
+; or if the end of the input buffer is reached and cannot be refilled before the terminating [ELSE] or [THEN] is parsed.
+ FORTHWORDIMM "[IF]" ; flag --
+ CMP #0,TOS
+ MOV @PSP+,TOS
+ JZ BRACKETELSE
+ mNEXT
+
+;[UNDEFINED]
+;https://forth-standard.org/standard/tools/BracketUNDEFINED
+;Compilation:
+;Perform the execution semantics given below.
+;Execution: ( "<spaces>name ..." -- flag )
+;Skip leading space delimiters. Parse name delimited by a space.
+;Return a false flag if name is the name of a word that can be found,
+;otherwise return a true flag.
+ FORTHWORDIMM "[UNDEFINED]"
+ mDOCOL
+ .word FBLANK,WORDD,FIND,NIP,ZEROEQUAL,EXIT
+
+;[DEFINED]
+;https://forth-standard.org/standard/tools/BracketDEFINED
+;Compilation:
+;Perform the execution semantics given below.
+;Execution:
+;( "<spaces>name ..." -- flag )
+;Skip leading space delimiters. Parse name delimited by a space.
+;Return a true flag if name is the name of a word that can be found,
+;otherwise return a false flag. [DEFINED] is an immediate word.
+
+ FORTHWORDIMM "[DEFINED]"
+ mDOCOL
+ .word FBLANK,WORDD,FIND,NIP,EXIT
+
+ .ENDIF ; CONDCOMP
+
+; ------------------------------------------------------------------------------
+; forthMSP430FR : WARM
+; ------------------------------------------------------------------------------
+
; define FREQ used in WARM message (6)
.IF FREQUENCY = 0.25
FREQ .set " .2MHz"
MOV &SAVE_SYSRSTIV,TOS ; to display it
mDOCOL
.word XSQUOTE ;
- .byte 5,13,1Bh,"[7m" ; CR + cmd "reverse video"
+ .byte 6,13,1Bh,"[7m#" ; CR + cmd "reverse video" + #
.word TYPE ;
.word DOT ; display signed SAVE_SYSRSTIV
; .word DOT ; display SYSSNIV
; .word DOT ; display SYSUNIV
.word XSQUOTE
- .byte 39," FastForth V160",FREQ," (C) J.M.Thoorens "
+ .byte 39," FastForth V2.0",FREQ," (C) J.M.Thoorens "
.word TYPE
.word LIT,FRAM_FULL,HERE,MINUS,UDOT
.word XSQUOTE ;
.byte 11,"bytes free ";
- .word QABORTYESNOECHO ; NOECHO enables any app to execute COLD without terminal connexion !
+ .word QABORTYESNOECHO ; NOECHO state enables any app to execute COLD or WARM without terminal connexion
;Z WARM -- ; deferred word used to init your application
FORTHWORD "WARM"
WARM: MOV #PARENWARM,PC
+; ------------------------------------------------------------------------------
+; forthMSP430FR : COLD
+; ------------------------------------------------------------------------------
+
;Z COLD -- performs a software reset
FORTHWORD "COLD"
-COLD: MOV #0A500h+PMMSWBOR,&PMMCTL0
+COLD MOV #0A500h+PMMSWBOR,&PMMCTL0
-; -------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; in addition to <reset>, DEEP_RST restores the program as it was in the forthMSP430FR.txt file and the electronic fuse so.
-; -------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
RESET
-; -------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; case 1 : Power ON ==> RESET + the volatile program beyond PWR_HERE (not protected by PWR_STATE against POWER OFF) is lost
; SYSRSTIV = 2
; case 3 : TERM_TX wired to GND via 4k7 + <reset> ===> DEEP_RST, works even if the electronic fuse is "blown" !
; case 3.1 : (SYSRSTIV = 0Ah | SYSRSTIV >= 16h) ===> DEEP_RST on failure,
; case 3.2 : writing -1 in SAVE_SYSRSTIV then COLD ===> software DEEP_RST (WARM displays "-1")
-; -------------------------------------------------------------------------
+;-------------------------------------------------------------------------------
-; ------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : Target Init, limited to FORTH usage : I/O, FRAM, RTC
; all others I/O are set as input with pullup resistor
-; ------------------------------------------------------------------
+;-------------------------------------------------------------------------------
.include "TargetInit.asm" ; include for each target the init code
MOV &INI_TERM,&TERMVEC
MOV #CPUOFF+GIE,&LPM_MODE
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : INIT FORTH machine
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
MOV #RSTACK,SP ; init return stack
MOV #PSTACK,PSP ; init parameter stack
.SWITCH DTC
MOV #10,&BASE
MOV #-1,&CAPS
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : test TERM_TXD/Deep_RST before init TERM_UART I/O
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
BIC #LOCKLPM5,&PM5CTL0 ; activate all previous I/O settings before DEEP_RST test
MOV &SAVE_SYSRSTIV,Y ;
BIT.B #DEEP_RST,&Deep_RST_IN ; TERM TXD wired to GND via 4k7 resistor ?
ADD #1,Y ; to display SAVE_SYSRSTIV as negative value
MOV Y,&SAVE_SYSRSTIV
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : INIT TERM_UART
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
TERM_INIT
-
MOV #0081h,&TERMCTLW0 ; Configure TERM_UART UCLK = SMCLK
.include "TERMINALBAUDRATE.asm" ; include code to configure baudrate
BIC #UCSWRST,&TERMCTLW0 ; release from reset...
BIS #UCRXIE,&TERMIE ; ... then enable RX interrupt for wake up on terminal input
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : Select POWER_ON|<reset>|DEEP_RST
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
SelectReset MOV #COLD_END,IP ; define return of WIPE,RST_STATE,PWR_STATE
MOV &SAVE_SYSRSTIV,Y;
JNZ RST_STATE ; else execute RST_STATE
JZ PWR_STATE ; yes execute PWR_STATE
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; RESET : INIT SD_Card optionally
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
COLD_END
.IFNDEF SD_CARD_LOADER ;
.word WARM ; the next step
JMP WARM
.ENDIF
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; ASSEMBLER OPTION
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
.IFDEF MSP430ASSEMBLER
.include "forthMSP430FR_ASM.asm"
.ENDIF
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; SD CARD FAT OPTIONS
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
.IFDEF SD_CARD_LOADER
- .include "forthMSP430FR_SD_LowLvl.asm" ; SD primitives
- .include "forthMSP430FR_SD_LOAD.asm" ; SD LOAD fonctions
+ .include "forthMSP430FR_SD_LowLvl.asm" ; SD primitives
+ .include "forthMSP430FR_SD_LOAD.asm" ; SD LOAD driver
+ ;---------------------------------------------------------------------------
+ ; SD CARD READ WRITE
+ ;---------------------------------------------------------------------------
.IFDEF SD_CARD_READ_WRITE
- .include "forthMSP430FR_SD_RW.asm" ; SD Read/Write fonctions
+ .include "forthMSP430FR_SD_RW.asm" ; SD Read/Write driver
.ENDIF
+ ;---------------------------------------------------------------------------
+ ; SD TOOLS
+ ;---------------------------------------------------------------------------
+ .IFDEF SD_TOOLS
+ .include "ADDON\SD_TOOLS.asm"
+ .ENDIF ; SD_READ_WRITE_TOOLS
.ENDIF ; SD_CARD_LOADER
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
; UTILITY WORDS OPTION
-; ----------------------------------------------------------------------
+;-------------------------------------------------------------------------------
.IFDEF UTILITY
.include "ADDON\UTILITY.asm"
.ENDIF ; UTILITY
-;-----------------------------------------------------------------------
-; SD TOOLS
-;-----------------------------------------------------------------------
- .IFDEF SD_TOOLS
-
- .IFNDEF UTILITY
- .include "ADDON\UTILITY.asm"
- .ENDIF
-
- .include "ADDON\SD_TOOLS.asm"
- .ENDIF ; SD_READ_WRITE_TOOLS
+;-------------------------------------------------------------------------------
+; FIXED POINT OPERATORS OPTION
+;-------------------------------------------------------------------------------
+ .IFDEF FIXPOINT
+ .include "ADDON\FIXPOINT.asm"
+ .ENDIF ; FIXPOINT
-; -----------------------------------------------------------
+;-------------------------------------------------------------------------------
; IT'S FINISH : RESOLVE ASSEMBLY PTR
-; -----------------------------------------------------------
-ROMDICT ; init DDP
+;-------------------------------------------------------------------------------
+ROMDICT ; init DDP with this current address
lastvoclink .equ voclink
lastforthword .equ forthlink
lastasmword .equ asmlink
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