101 lines
1.9 KiB
C
101 lines
1.9 KiB
C
/*
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* hex2hex reads stdin in Intel HEX format and produces an
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* (unsigned char) array which contains the bytes and writes it
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* to stdout using C syntax
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#define ABANDON(why) { fprintf(stderr, "%s\n", why); exit(1); }
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#define MAX_SIZE (256*1024)
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unsigned char buf[MAX_SIZE];
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static int loadhex(FILE *inf, unsigned char *buf)
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{
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int l=0, c, i;
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while ((c=getc(inf))!=EOF)
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{
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if (c == ':') /* Sync with beginning of line */
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{
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int n, check;
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unsigned char sum;
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int addr;
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int linetype;
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if (fscanf(inf, "%02x", &n) != 1)
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ABANDON("File format error");
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sum = n;
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if (fscanf(inf, "%04x", &addr) != 1)
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ABANDON("File format error");
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sum += addr/256;
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sum += addr%256;
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if (fscanf(inf, "%02x", &linetype) != 1)
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ABANDON("File format error");
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sum += linetype;
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if (linetype != 0)
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continue;
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for (i=0;i<n;i++)
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{
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if (fscanf(inf, "%02x", &c) != 1)
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ABANDON("File format error");
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if (addr >= MAX_SIZE)
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ABANDON("File too large");
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buf[addr++] = c;
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if (addr > l)
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l = addr;
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sum += c;
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}
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if (fscanf(inf, "%02x", &check) != 1)
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ABANDON("File format error");
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sum = ~sum + 1;
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if (check != sum)
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ABANDON("Line checksum error");
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}
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}
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return l;
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}
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int main( int argc, const char * argv [] )
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{
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const char * varline;
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int i,l;
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int id=0;
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if(argv[1] && strcmp(argv[1], "-i")==0)
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{
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argv++;
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argc--;
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id=1;
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}
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if(argv[1]==NULL)
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{
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fprintf(stderr,"hex2hex: [-i] filename\n");
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exit(1);
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}
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varline = argv[1];
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l = loadhex(stdin, buf);
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printf("/*\n *\t Computer generated file. Do not edit.\n */\n");
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printf("static int %s_len = %d;\n", varline, l);
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printf("static unsigned char %s[] %s = {\n", varline, id?"__initdata":"");
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for (i=0;i<l;i++)
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{
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if (i) printf(",");
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if (i && !(i % 16)) printf("\n");
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printf("0x%02x", buf[i]);
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}
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printf("\n};\n\n");
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return 0;
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}
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