int eapi_extract(easyflash_cart_t * cart)
{
if (check_header(&cart->main_flash_data[EAPI_OFFSET]) != 0) {
return -1;
}
memcpy(eapi_data, &cart->main_flash_data[EAPI_OFFSET], EAPI_SIZE);
strncpy(eapi_name_buf, petscii_to_ascii((const char *)&cart->main_flash_data[EAPI_NAME_OFFSET]), 16);
return 0;
}
int eapi_inject(easyflash_cart_t * cart, int custom)
{
const unsigned char *p;
if (custom) {
if (check_header(eapi_data) != 0) {
return -1;
}
p = eapi_data;
} else {
p = &eapi_am29f040_prg[2];
}
memcpy(&cart->main_flash_data[EAPI_OFFSET], p, EAPI_SIZE);
strncpy(eapi_name_buf, petscii_to_ascii((const char *)&cart->main_flash_data[EAPI_NAME_OFFSET]), 16);
return 0;
}
void log_hexdump2(const char *p, int len, int petscii, const char *prefix) {
int tot = 0;
int line = 0;
int x = 0;
const char *spaceprefix = spaces + strlen(spaces) - strlen(prefix);
newline = lastlog_anything;
color_log_debug();
if(len) {
while(tot < len) {
if (tot == 0) {
printf(LOG_PREFIX "%s%04X ", prefix, tot);
} else {
printf(LOG_PREFIX "%s%04X ", spaceprefix , tot);
}
for(x=0; x<16; x++) {
if(line+x < len) {
tot++;
printf("%02X ", 255&p[line+x]);
}
else printf(" ");
if(x == 7) putchar(' ');
}
printf(" |");
for(x=0; x<16; x++) {
if(line+x < len) {
int c = p[line+x];
if (petscii) c = petscii_to_ascii(c);
if(isprint(c)) putchar(c); else putchar(' ');
} else putchar(' ');
}
printf("|\n");
line = tot;
}
}
color_default();
}
static int find_file(FILE *fp, Disk_Image_t *di, const char *filename,
uint8_t *start_track, uint8_t *start_sector, uint8_t *ss_track, uint8_t *ss_sector,
uint8_t *reclen, int *flength) {
// directory sector
uint8_t dirsect[256];
// default
*start_track = 0;
*ss_track = 0;
// dir chain
int dir_track = di->DirTrack;
int dir_sector = di->DirSector;
// walk along the directory chain
while (dir_track != 0) {
// each slot starts at 2 bytes into the block due to the link address
// but we can do as if it started at each $20 boundary
read_sector(fp, di, dir_track, dir_sector, dirsect);
// iterate slots in file
for (int slot = 0; slot < 8; slot++) {
int slotp = slot * 0x20;
if (dirsect[slotp+2] != 0x84) {
log_debug("t/s %d/%d ignoring slot %d, type is %02x\n",
dir_track, dir_sector,slot, dirsect[slotp+2]);
continue;
}
int j = 0;
// match file name
for (j = 0; j < 16; j++) {
// printf("match: %c (%02x) with %c (%2x)\n", filename[j], filename[j],
//dirsect[slotp+5+j],dirsect[slotp+5+j]);
if (filename[j] == 0
|| dirsect[slotp + 5 + j] == 0xa0) {
break;
}
if (filename[j] != petscii_to_ascii(dirsect[slotp + 5 + j])) {
// files differ
break;
}
}
if (filename[j] == 0 && dirsect[slotp + 5 + j] == 0xa0) {
// both ended at same char, then they match
*start_track = dirsect[slotp + 3];
*start_sector = dirsect[slotp + 4];
*ss_track = dirsect[slotp + 0x15];
*ss_sector = dirsect[slotp + 0x16];
*reclen = dirsect[slotp + 0x17];
*flength = (dirsect[slotp + 0x1e] & 0xff) + (dirsect[slotp + 0x1f] << 8);
return 1;
}
}
dir_track = dirsect[BLK_OFFSET_NEXT_TRACK];
dir_sector = dirsect[BLK_OFFSET_NEXT_SECTOR];
}
return 0;
}
