diff options
Diffstat (limited to 'csim/load.c')
| -rw-r--r-- | csim/load.c | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/csim/load.c b/csim/load.c index eb441cc..e6fcf29 100644 --- a/csim/load.c +++ b/csim/load.c @@ -11,9 +11,34 @@ #include "sim.h" +t_rom *roms = NULL; + +void add_rom(const char *prefix, FILE *file) { + int i; + + t_rom *rom = malloc(sizeof(t_rom)); + rom->prefix = prefix; + + // Load ROM file + fscanf(file, "%d %d\n", &(rom->addr_size), &(rom->word_size)); + rom->data = malloc(pow2(rom->addr_size) * sizeof(t_value)); + + for (i = 0; i < pow2(rom->addr_size); i++) { + fscanf(file, " "); + if (fscanf(file, "/%lu", &(rom->data[i]))) { + // ok, value is read + } else { + rom->data[i] = read_bool(file, NULL); + } + } + + rom->next = roms; + roms = rom; +} t_program *load_dumb_netlist (FILE *stream) { - int i, j; + int i, j, as, ws; + t_rom *r; // let us suppose that the input to be read is well-formed. t_program *p = malloc(sizeof(t_program)); @@ -94,9 +119,25 @@ t_program *load_dumb_netlist (FILE *stream) { break; case C_ROM: fscanf(stream, "%d %d %d ", - &(p->eqs[i].Rom.addr_size), - &(p->eqs[i].Rom.word_size), + &as, &ws, &(p->eqs[i].Rom.read_addr)); + p->eqs[i].Rom.rom = NULL; + // find corresponding ROM + for (r = roms; r != NULL; r = r->next) { + if (is_prefix(r->prefix, p->vars[p->eqs[i].dest_var].name)) { + if (r->addr_size == as && r->word_size == ws) { + p->eqs[i].Rom.rom = r; + break; + } else { + fprintf(stderr, + "Error: ROM prefixed by '%s' does not have size corresponding to variable that uses it.\n", + r->prefix); + } + } + } + if (p->eqs[i].Rom.rom == NULL) + fprintf(stderr, "Warning: ROM variable '%s' has no ROM data.\n", + p->vars[p->eqs[i].dest_var].name); break; case C_CONCAT: fscanf(stream, "%d %d ", |