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 BUFFER 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" ; TIB TIB TIB_LEN -- PAD|SDIB len'
34 ; ----------------------------------;
35 SD_ACCEPT ; sequentially move from BUFFER to SDIB (or PAD) a line of chars delimited by CRLF
36 ; ----------------------------------; up to TIB_LEN = 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 ; ----------------------------------; -- TIB TIB len
45 .IFDEF RAM_1K ; use PAD as SD Input Buffer because the lack of RAM
46 MOV #PAD_ORG,W ; W=dst
47 .ELSEIF ; use SDIB as SD Input Buffer
50 MOV W,2(PSP) ; -- StringOrg' TIB TIB_LEN
51 MOV TOS,0(PSP) ; -- StringOrg' TIB_LEN TIB_LEN
52 MOV #0,TOS ; -- StringOrg' TIB_LEN Count
53 ; ----------------------------------;
54 SDA_InitSrcAddr ; <== SDA_GetFileNextSector
55 ; ----------------------------------;
56 CMP #0,&BufferLen ; test if input buffer is empty (EOF)
57 JZ SDA_GoToInterpret ; yes, to interpret an empty line (to do nothing)
58 MOV &BufferPtr,X ; X=src
60 ; ----------------------------------;
62 ; ----------------------------------;
64 SUB #2,IP ; 1 restore YEMIT return
65 ; ----------------------------------;
67 ; ----------------------------------;
68 CMP &BufferLen,X ; 3 BufferPtr >= BufferLen ?
69 JHS SDA_GetFileNextSector ; 2 yes
70 MOV.B BUFFER(X),Y ; 3 Y = char
71 ADD #1,X ; 1 increment input BufferPtr
72 CMP.B #32,Y ; 2 ascii printable char ?
73 JHS SDA_MoveChar ; 2 yes
74 CMP.B #10,Y ; 2 control char = 'LF' ?
75 JNZ SDA_ComputeChar ; 2 no
76 ; ----------------------------------;
78 ; ----------------------------------;
79 MOV X,&BufferPtr ; yes save BufferPtr for next line
80 ; ----------------------------------;
81 SDA_GoToInterpret ; -- StringOrg' TIB_LEN len'
82 ; ----------------------------------;
83 ADD #2,PSP ; -- StringOrg' len'
85 MOV @IP+,PC ; ===> unique output
86 ; ----------------------------------;
88 ; ----------------------------------;
89 CMP @PSP,TOS ; 2 count = TIB_LEN ?
90 JZ YEMIT ; 2 yes, don't move char to dst
91 MOV.B Y,0(W) ; 3 move char to dst
92 ADD #1,W ; 1 increment dst addr
93 ADD #1,TOS ; 1 increment count of moved chars
94 JMP YEMIT ; 9/6~ send echo to terminal if ECHO, do nothing if NOECHO
95 ; ----------------------------------; 32/29~ char loop, add 14~ for readsectorW ==> 46/43~ ==> 174/186 kbytes/s @ 8MHz
96 SDA_GetFileNextSector ; StringOrg' TIB_LEN Count --
97 ; ----------------------------------;
99 CALL #Read_File ; that resets BufferPtr
100 MOV @RSP+,W ; restore dst
101 JMP SDA_InitSrcAddr ; loopback to end the line
102 ; ----------------------------------;