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[/] [eco32/] [trunk/] [tools/] [bin2exo/] [bin2exo.c] - Blame information for rev 101

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Line No. Rev Author Line
1 14 hellwig 
/*
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 * bin2exo.c -- convert binary data to Motorola S-records
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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12 39 hellwig 
#define S1      1
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#define S2      2
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#define S3      3
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17 14 hellwig 
void error(char *fmt, ...) {
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  va_list ap;
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  va_start(ap, fmt);
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  printf("Error: ");
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  vprintf(fmt, ap);
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  printf("\n");
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  va_end(ap);
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  exit(1);
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}
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int main(int argc, char *argv[]) {
30 39 hellwig 
  int type;
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  unsigned int loadAddrMsk;
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  char *loadAddrStr;
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  char *infileStr;
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  char *outfileStr;
35 14 hellwig 
  char *endptr;
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  unsigned int loadAddr;
37 39 hellwig 
  unsigned int startAddr;
38 14 hellwig 
  FILE *infile;
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  FILE *outfile;
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  int numBytes, i;
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  int c;
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  unsigned char lineData[16];
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  unsigned int chksum;
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45 39 hellwig 
  if (argc != 5) {
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    printf("Usage: %s -S1|-S2|-S3 <load addr, hex> ", argv[0]);
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    printf("<input file> <output file>\n");
48 14 hellwig 
    exit(1);
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  }
50 39 hellwig 
  if (strcmp(argv[1], "-S1") == 0) {
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    type = S1;
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    loadAddrMsk = 0x0000FFFF;
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  } else
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  if (strcmp(argv[1], "-S2") == 0) {
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    type = S2;
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    loadAddrMsk = 0x00FFFFFF;
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  } else
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  if (strcmp(argv[1], "-S3") == 0) {
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    type = S3;
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    loadAddrMsk = 0xFFFFFFFF;
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  } else {
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    error("exactly one of -S1, -S2, or -S3 must be specified");
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  }
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  loadAddrStr = argv[2];
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  infileStr = argv[3];
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  outfileStr = argv[4];
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  loadAddr = strtoul(loadAddrStr, &endptr, 16);
68 14 hellwig 
  if (*endptr != '\0') {
69 39 hellwig 
    error("illegal load address %s", loadAddrStr);
70 14 hellwig 
  }
71 39 hellwig 
  if (loadAddr & ~loadAddrMsk) {
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    error("load address too big");
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  }
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  startAddr = loadAddr;
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  infile = fopen(infileStr, "rb");
76 14 hellwig 
  if (infile == NULL) {
77 39 hellwig 
    error("cannot open input file %s", infileStr);
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  }
79 39 hellwig 
  outfile = fopen(outfileStr, "wt");
80 14 hellwig 
  if (outfile == NULL) {
81 39 hellwig 
    error("cannot open output file %s", outfileStr);
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  }
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  while (1) {
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    chksum = 0;
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    for (numBytes = 0; numBytes < 16; numBytes++) {
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      c = fgetc(infile);
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      if (c == EOF) {
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        break;
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      }
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      lineData[numBytes] = c;
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      chksum += c;
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    }
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    if (numBytes == 0) {
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      break;
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    }
96 39 hellwig 
    switch (type) {
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      case S1:
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        fprintf(outfile, "S1%02X%04X", numBytes + 3, loadAddr);
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        break;
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      case S2:
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        fprintf(outfile, "S2%02X%06X", numBytes + 4, loadAddr);
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        break;
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      case S3:
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        fprintf(outfile, "S3%02X%08X", numBytes + 5, loadAddr);
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        break;
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    }
107 14 hellwig 
    for (i = 0; i < numBytes; i++) {
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      fprintf(outfile, "%02X", lineData[i]);
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    }
110 39 hellwig 
    switch (type) {
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      case S1:
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        chksum += numBytes + 3 +
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                  ((loadAddr >>  0) & 0xFF) +
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                  ((loadAddr >>  8) & 0xFF);
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        break;
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      case S2:
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        chksum += numBytes + 4 +
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                  ((loadAddr >>  0) & 0xFF) +
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                  ((loadAddr >>  8) & 0xFF) +
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                  ((loadAddr >> 16) & 0xFF);
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        break;
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      case S3:
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        chksum += numBytes + 5 +
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                  ((loadAddr >>  0) & 0xFF) +
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                  ((loadAddr >>  8) & 0xFF) +
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                  ((loadAddr >> 16) & 0xFF) +
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                  ((loadAddr >> 24) & 0xFF);
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        break;
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    }
130 14 hellwig 
    fprintf(outfile, "%02X\n", 0xFF - (chksum & 0xFF));
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    loadAddr += numBytes;
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    if (c == EOF) {
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      break;
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    }
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  }
136 39 hellwig 
  switch (type) {
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    case S1:
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      fprintf(outfile, "S903%04X", startAddr);
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      chksum = 3 +
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               ((startAddr >>  0) & 0xFF) +
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               ((startAddr >>  8) & 0xFF);
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      break;
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    case S2:
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      fprintf(outfile, "S804%06X", startAddr);
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      chksum = 4 +
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               ((startAddr >>  0) & 0xFF) +
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               ((startAddr >>  8) & 0xFF) +
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               ((startAddr >> 16) & 0xFF);
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      break;
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    case S3:
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      fprintf(outfile, "S705%08X", startAddr);
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      chksum = 5 +
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               ((startAddr >>  0) & 0xFF) +
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               ((startAddr >>  8) & 0xFF) +
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               ((startAddr >> 16) & 0xFF) +
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               ((startAddr >> 24) & 0xFF);
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      break;
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  }
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  fprintf(outfile, "%02X\n", 0xFF - (chksum & 0xFF));
160 14 hellwig 
  fclose(infile);
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  fclose(outfile);
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  return 0;
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}

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