izaya/collapseos
1
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

tools/upload: send data as string hex to avoid control characters

Browse Source 
So far, I've been using this tool on remotes that had no control
character handling, but it doesn't work on a TRS-80 4P remote.

Much slower, but at least it works.

Later, I'll try to put some order in this so that we use the fast
lane when possible.
This commit is contained in:
Virgil Dupras 2020-12-16 16:52:54 -05:00
parent f0087cd48e
commit 40b41d296c
2 changed files with 24 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tools/common.c
View File

@ -13,6 +13,7 @@
void mread(int fd, char *s, int count)
{
while (count) {
BREATHE;
while (read(fd, s, 1) == 0) {
BREATHE;
}

39
tools/upload.c
View File

@ -41,32 +41,39 @@ int main(int argc, char **argv)
return 1;
}
char s[0x40];
sendcmdp(fd, ": K KEY DUP EMIT ;");
// P: parse digit. We assume '0-9' or 'a-f' range and return a 0-15 value.
sendcmdp(fd, ": P DUP '0' '9' =><= IF '0' ELSE 0x57 THEN - ;");
// R: receive hex pairs. we receive values in hex pairs, re-emit them upon
// reception, and then write them to memory.
sprintf(s,
": _ 0x%04x 0x%04x DO KEY DUP .x I C! LOOP ; _",
": R %d %d DO K P 16 * K P OR I C! LOOP ; R",
memptr+bytecount, memptr);
sendcmd(fd, s);
int returncode = 0;
while (fread(s, 1, 1, fp)) {
unsigned char c1, c2;
c1 = s[0];
sprintf(s, "%02x", c1);
for (int i=0; i<2; i++) {
c1 = s[i];
write(fd, &c1, 1);
usleep(1000); // let it breathe
mread(fd, &c2, 1); // read ping back
if (c1 != c2) {
// mismatch!
unsigned int pos = ftell(fp);
fprintf(stderr, "Mismatch at byte %d! %d != %d.\n", pos, c1, c2);
// we don't exit now because we need to "consume" our whole program.
returncode = 1;
}
}
putc('.', stderr);
fflush(stderr);
unsigned char c = s[0];
write(fd, &c, 1);
usleep(1000); // let it breathe
mread(fd, s, 2); // read hex pair
s[2] = 0; // null terminate
unsigned char c2 = strtol(s, NULL, 16);
if (c != c2) {
// mismatch!
unsigned int pos = ftell(fp);
fprintf(stderr, "Mismatch at byte %d! %d != %d.\n", pos, c, c2);
// we don't exit now because we need to "consume" our whole program.
returncode = 1;
}
usleep(1000); // let it breathe
}
readprompt(fd);
sendcmdp(fd, "FORGET _");
sendcmdp(fd, "FORGET K");
fprintf(stderr, "Done!\n");
fclose(fp);
if (fd > 0) {