static void process_field(jed_data *data, const UINT8 *cursrc, const UINT8 *srcend, UINT16 *checksum) { /* switch off of the field type */ switch (*cursrc) { case 'Q': cursrc++; switch (*cursrc) { /* number of fuses */ case 'F': cursrc++; data->numfuses = suck_number(&cursrc); break; } break; /* default fuse state (0 or 1) */ case 'F': cursrc++; if (LOG_PARSE) printf("F%c\n", *cursrc); if (*cursrc == '0') memset(data->fusemap, 0x00, sizeof(data->fusemap)); else memset(data->fusemap, 0xff, sizeof(data->fusemap)); break; /* fuse states */ case 'L': { UINT32 curfuse; /* read the fuse number */ cursrc++; curfuse = suck_number(&cursrc); if (LOG_PARSE) printf("L%d\n", curfuse); /* read digits, skipping delimiters */ for ( ; cursrc < srcend; cursrc++) if (*cursrc == '0' || *cursrc == '1') { jed_set_fuse(data, curfuse, *cursrc - '0'); if (LOG_PARSE) printf(" fuse %d = %d\n", curfuse, 0); if (curfuse >= data->numfuses) data->numfuses = curfuse + 1; curfuse++; } break; } /* fuse checksum */ case 'C': cursrc++; if (cursrc < srcend + 4 && ishex(cursrc[0]) && ishex(cursrc[1]) && ishex(cursrc[2]) && ishex(cursrc[3])) *checksum = (hexval(cursrc[0]) << 12) | (hexval(cursrc[1]) << 8) | (hexval(cursrc[2]) << 4) | hexval(cursrc[3] << 0); break; } }
static void process_field(jed_data *data, const UINT8 *cursrc, const UINT8 *srcend, parse_info *pinfo) { cursrc++; // switch off of the field type switch (*cursrc) { // number of inputs case 'i': cursrc += 2; pinfo->inputs = suck_number(&cursrc); if (LOG_PARSE) printf("Inputs: %u\n", pinfo->inputs); break; // number of outputs case 'o': cursrc += 2; pinfo->outputs = suck_number(&cursrc); if (LOG_PARSE) printf("Outputs: %u\n", pinfo->outputs); break; // number of product terms case 'p': { cursrc += 2; pinfo->terms = suck_number(&cursrc); if (LOG_PARSE) printf("Terms: %u\n", pinfo->terms); UINT32 curfuse = 0; bool outputs = false; cursrc++; while (cursrc < srcend && *cursrc != '.') { switch (*cursrc) { case '-': if (!outputs) { jed_set_fuse(data, curfuse++, 1); jed_set_fuse(data, curfuse++, 1); if (LOG_PARSE) printf("11"); } break; case '1': if (outputs) { jed_set_fuse(data, curfuse++, 0); if (LOG_PARSE) printf("0"); } else { jed_set_fuse(data, curfuse++, 1); jed_set_fuse(data, curfuse++, 0); if (LOG_PARSE) printf("10"); } break; case '0': if (outputs) { jed_set_fuse(data, curfuse++, 1); if (LOG_PARSE) printf("1"); } else { jed_set_fuse(data, curfuse++, 0); jed_set_fuse(data, curfuse++, 1); if (LOG_PARSE) printf("01"); } break; case ' ': outputs = true; if (LOG_PARSE) printf(" "); break; } if (iscrlf(*cursrc) && outputs) { outputs = false; if (LOG_PARSE) printf("\n"); } cursrc++; } data->numfuses = curfuse; break; } // end of file case 'e': printf("End of file\n"); break; } cursrc++; }
static bool process_field(jed_data *data, const UINT8 **src, const UINT8 *srcend, parse_info *pinfo) { // valid keywords static const char *const keywords[] = { "i", "o", "p", "phase", "e", "\0" }; enum { KW_INPUTS = 0, KW_OUTPUTS, KW_TERMS, KW_PHASE, KW_END, KW_INVALID }; // find keyword char dest[0x10]; memset(dest, 0, ARRAY_LENGTH(dest)); const UINT8 *seek = *src; int destptr = 0; while (seek < srcend && isalpha(*seek) && destptr < ARRAY_LENGTH(dest) - 1) { dest[destptr] = tolower(*seek); seek++; destptr++; } UINT8 find = 0; while (strlen(keywords[find]) && strcmp(dest, keywords[find])) find++; if (find == KW_INVALID) return false; (*src) += strlen(keywords[find]); // handle it switch (find) { // number of inputs case KW_INPUTS: pinfo->inputs = suck_number(src, srcend); if (pinfo->inputs == 0 || pinfo->inputs >= (JED_MAX_FUSES/2)) return false; if (LOG_PARSE) printf("Inputs: %u\n", pinfo->inputs); break; // number of outputs case KW_OUTPUTS: pinfo->outputs = suck_number(src, srcend); if (pinfo->outputs == 0 || pinfo->outputs >= (JED_MAX_FUSES/2)) return false; if (LOG_PARSE) printf("Outputs: %u\n", pinfo->outputs); break; // number of product terms (optional) case KW_TERMS: pinfo->terms = suck_number(src, srcend); if (pinfo->terms == 0 || pinfo->terms >= (JED_MAX_FUSES/2)) return false; if (LOG_PARSE) printf("Terms: %u\n", pinfo->terms); break; // output polarity (optional) case KW_PHASE: if (LOG_PARSE) printf("Phase...\n"); while (*src < srcend && !iscrlf(**src) && pinfo->xorptr < (JED_MAX_FUSES/2)) { if (**src == '0' || **src == '1') { // 0 is negative if (**src == '0') pinfo->xorval[pinfo->xorptr/32] |= 1 << (pinfo->xorptr & 31); pinfo->xorptr++; } (*src)++; } break; // end of file (optional) case KW_END: if (LOG_PARSE) printf("End of file\n"); break; } return true; }