1 ; -*- coding: utf-8 -*-
2 ; http://patorjk.com/software/taag/#p=display&f=Banner&t=Fast Forth
4 ; Fast Forth For Texas Instrument MSP430FRxxxx FRAM devices
5 ; Copyright (C) <2017> <J.M. THOORENS>
7 ; This program is free software: you can redistribute it and/or modify
8 ; it under the terms of the GNU General Public License as published by
9 ; the Free Software Foundation, either version 3 of the License, or
10 ; (at your option) any later version.
12 ; This program is distributed in the hope that it will be useful,
13 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ; GNU General Public License for more details.
17 ; You should have received a copy of the GNU General Public License
18 ; along with this program. If not, see <http://www.gnu.org/licenses/>.
21 ;Z SD_ACCEPT addr addr len -- addr' len' get line to interpret from a SD Card file
22 ; note : addr = TIB, addr' = PAD
23 ; defered word ACCEPT is redirected here by the word LOAD"
24 ; sequentially move an input line ended by CRLF from SD_BUF to PAD
25 ; if end of buffer is reached before CRLF, asks Read_HandledFile to fill buffer with next sector
26 ; then move the end of the line.
27 ; when all LOAD"ed files are read, redirects defered word ACCEPT to (ACCEPT) and restore interpret pointers.
30 ; used variables : BufferPtr, BufferLen
32 ; ----------------------------------;
33 ; FORTHWORD "SD_ACCEPT" ; CIB CIB CPL -- CIB len
34 ; ----------------------------------;
35 SD_ACCEPT ; sequentially move from SD_BUF to SDIB (PAD if RAM=1k) a line of chars delimited by CRLF
36 ; ----------------------------------; up to CPL = 80 chars
38 MOV #SDA_YEMIT_RET,IP ; set YEMIT return
39 ; ----------------------------------;
41 ; ----------------------------------;
42 MOV &CurrentHdl,T ; prepare a link for the next LOADed file...
43 MOV &BufferPtr,HDLW_BUFofst(T) ; ...see usage : HandleComplements
44 ; ----------------------------------; -- CIB CIB CPL
46 MOV TOS,0(PSP) ; -- CIB CPL CPL
47 MOV #0,TOS ; -- CIB CPL Count
48 ; ----------------------------------;
49 SDA_InitSrcAddr ; <== SDA_GetFileNextSector
50 ; ----------------------------------;
51 MOV &BufferPtr,X ; X=src
53 ; ----------------------------------;
55 ; ----------------------------------;
57 SUB #2,IP ; 1 restore YEMIT return
58 ; ----------------------------------;
60 ; ----------------------------------;
61 CMP &BufferLen,X ; 3 BufferPtr >= BufferLen ?
62 JHS SDA_GetFileNextSector ; 2 yes
63 MOV.B SD_BUF(X),Y ; 3 Y = char
64 ADD #1,X ; 1 increment input BufferPtr
65 CMP.B #32,Y ; 2 ascii printable char ?
66 JHS SDA_MoveChar ; 2 yes
67 CMP.B #10,Y ; 2 control char = 'LF' ?
68 JNZ SDA_ComputeChar ; 2 no
69 ; ----------------------------------;
71 ; ----------------------------------;
72 MOV X,&BufferPtr ; yes save BufferPtr for next line
73 ADD #2,PSP ; -- CIB len
75 MOV @IP+,PC ; ===> unique output
76 ; ----------------------------------;
78 ; ----------------------------------;
79 CMP @PSP,TOS ; 2 count = CPL ?
80 JZ YEMIT1 ; 2 yes, don't move char to dst
81 MOV.B Y,0(W) ; 3 move char to dst
82 ADD #1,W ; 1 increment dst addr
83 ADD #1,TOS ; 1 increment count of moved chars
84 JMP YEMIT1 ; 9/6~ send echo to terminal if ECHO, do nothing if NOECHO
85 ; ----------------------------------; 32/29~ char loop, add 14~ for readsectorW ==> 46/43~ ==> 174/186 kbytes/s @ 8MHz
86 SDA_GetFileNextSector ; CIB CPL Count --
87 ; ----------------------------------;
89 CALL #Read_File ; that resets BufferPtr
90 MOV @RSP+,W ; restore dst
91 JMP SDA_InitSrcAddr ; loopback to end the line
92 ; ----------------------------------;