mcphail/spectrum_remload
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Improve ttttt to add block format byte

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This commit is contained in:
Neil McPhail 2024-11-11 17:35:34 +00:00
parent 1c7ab48330
commit 8c78aab32e
5 changed files with 36 additions and 14 deletions
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5
.gitignore vendored
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@ -1,4 +1,5 @@
*.tap *.tap
*bin *.block
*bincs body
header
ttttt ttttt

6
Makefile
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@ -2,15 +2,15 @@ program.tap: header.block body.block
cat header.block body.block > program.tap cat header.block body.block > program.tap
header.block: header ttttt header.block: header ttttt
./ttttt header ./ttttt header header
header: header.asm body.block header: header.asm body.block
pasmo header.asm headerlong pasmo header.asm headerlong
dd if=headerlong of=header bs=18 count=1 dd if=headerlong of=header bs=17 count=1
rm -f headerlong rm -f headerlong
body.block: body ttttt body.block: body ttttt
./ttttt body ./ttttt body data
body: remload.asm code.asm body: remload.asm code.asm
pasmo remload.asm body pasmo remload.asm body

3
header.asm
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@ -1,6 +1,3 @@
headerflag:
db 0
blocktype: blocktype:
db 0 ;basic program db 0 ;basic program

4
remload.asm
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@ -1,7 +1,5 @@
org #5cca org #5ccb
bodyformat:
db #ff
linenumber: linenumber:
db #00 ;MSB db #00 ;MSB
db #00 ;LSB db #00 ;LSB

32
ttttt.c
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@ -15,13 +15,31 @@ int main(int argc, char *argv[])
int fdin, fdout; int fdin, fdout;
char outfilename[PATH_MAX]; char outfilename[PATH_MAX];
unsigned int count = 0; unsigned int count = 0;
unsigned char flagopt = 0;
unsigned char tally = 0; unsigned char tally = 0;
unsigned char next = 0; unsigned char next = 0;
if (argc!=2) { if ((argc<2) || (argc>3)) {
printf("Please specify file to read.\n"); printf("Please specify file to read.\n");
return -1; return -1;
} }
if (3==argc) {
if (!strcmp(argv[2], "header")) flagopt = 1;
if (!strcmp(argv[2], "data")) flagopt = 2;
if (!flagopt) {
printf("Optional flags are \"header\" or \"data\"\n");
return -1;
}
}
if (! flagopt) {
printf("*** WARNING ***\n");
printf("*** ttttt is running in RAW mode.\n");
printf("*** Have you manually included the format flag as the first byte of the block?\n");
printf("*** If not, run again passing 'header' or 'data' as the second parameter.\n");
printf("*** WARNING ***\n\n");
}
fdin = open(argv[1], O_RDONLY); fdin = open(argv[1], O_RDONLY);
if (fdin<0) { if (fdin<0) {
printf("Couldn't open %s. for reading\n", argv[1]); printf("Couldn't open %s. for reading\n", argv[1]);
@ -49,10 +67,18 @@ int main(int argc, char *argv[])
}; };
lseek(fdin, 0, SEEK_SET); lseek(fdin, 0, SEEK_SET);
if (flagopt) count++;
char lsb = (count+1)&255; char lsb = (count+1)&255;
char msb = ((count+1)>>8)&255; char msb = ((count+1)>>8)&255;
write(fdout, &lsb, 1); write(fdout, &lsb, 1);
write(fdout, &msb, 1); write(fdout, &msb, 1);
next = 0;
if (flagopt == 2) next = 255;
if (flagopt) {
write(fdout, &next, 1);
tally ^= next;
}
while (read(fdin, &next, 1)) { while (read(fdin, &next, 1)) {
write(fdout, &next, 1); write(fdout, &next, 1);
} }
@ -62,8 +88,8 @@ int main(int argc, char *argv[])
close(fdin); close(fdin);
printf("File %s written.\n", outfilename); printf("File %s written.\n", outfilename);
printf("Code length including first byte is %d (0x%.4X).\n", count, count); count--;
printf("Removing first byte gives 0x%.4X.\n", count-1); printf("Code length is %d (0x%.4X).\n", count, count);
return 0; return 0;
} }