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[/] [tv80/] [trunk/] [sc_env/] [env_memory.cpp] - Rev 104
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#include "env_memory.h" #include <stdio.h> void env_memory::event() { int lcl_cs; int ad; // ignore activity during reset if (!reset_n) return; if (!mreq_n && !wr_n && (addr < AM_DEPTH)) { ad = (int) addr; assert (memory != NULL); memory[ad] = (unsigned char) wr_data.read(); #ifdef DEBUG //printf ("MEM WR %04x=%02x\n", ad, (int) wr_data.read()); #endif } // async read output if (addr < AM_DEPTH) { ad = (int) addr; assert (memory != NULL); rd_data.write ( (unsigned int) memory[ad] ); } } int inline readline(FILE *fh, char *buf) { int c = 1, cnt = 0; if (feof(fh)) { *buf = (char) 0; return 0; } while (c) { c = fread (buf, 1, 1, fh); cnt++; if (c && (*buf == '\n')) { buf++; *buf = (char) 0; c = 0; } else buf++; } return cnt; } /* line = ifh.readline() while (line != ''): if (line[0] == ':'): rlen = int(line[1:3], 16) addr = int(line[3:7], 16) rtyp = int(line[7:9], 16) ptr = 9 for i in range (0, rlen): laddr = addr + i val = int(line[9+i*2:9+i*2+2], 16) self.map[laddr] = val self.bcount += 1 if (laddr > self.max): self.max = laddr if (laddr < self.min): self.min = laddr line = ifh.readline() */ void env_memory::load_ihex(char *filename) { FILE *fh; char line[80]; char *lp; int rlen, addr, rtyp, databyte; int rv; int dcount = 0; fh = fopen (filename, "r"); rv = readline (fh, line); while (strlen(line) > 0) { //printf ("DEBUG: strlen(line)=%d rv=%d line=%s\n", strlen(line), rv, line); sscanf (line, ":%02x%04x%02x", &rlen, &addr, &rtyp); //printf ("DEBUG: rlen=%d addr=%d rtyp=%d\n", rlen, addr, rtyp); lp = line + 9; for (int c=0; c<rlen; c++) { sscanf (lp, "%02x", &databyte); lp += 2; //printf ("DEBUG: loaded mem[%04x]=%02x\n", addr+c, databyte); memory[addr+c] = databyte; dcount++; } rv = readline (fh, line); } fclose (fh); printf ("ENVMEM : Read %d bytes from %s\n", dcount, filename); }
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