{{category 電子工作}}

!!! ソースです。
*見たままです。
*8bit (64kbyte以内) 専用。
*コピペミスがあるかも。エラーがでたら直してください。
*ライセンスは NYSL で。

 #include <stdio.h>
 #include <stdlib.h>
 
 #define LINEMAX 0x100
 
 /* pseudo memory space */
 unsigned char memory[0x10000] ; /* 64Kbyte Space */
 
 /* hex to decimal converter */
 static int hextoint(char a)
 {
 	if ((a >= '0') && (a <='9')) return a - '0' ;
 	if ((a >= 'A') && (a <='F')) return a - 'A' + 0x0A ;
 	if ((a >= 'a') && (a <='f')) return a - 'a' + 0x0A ;
 	return 0 ;
 }
 
 static int hex2toint(char *a)
 {
 	return (hextoint(a[0]) * 0x10 +  hextoint(a[1])) ;
 }
 
 static int hex4toint(char *a)
 {
 	return (hextoint(a[0]) * 0x1000 +   hextoint(a[1]) * 0x100 + hextoint(a[2])*0x10 +  hextoint(a[3])) ;
 }
 
 void main(int argc,char *argv[])
 {
 	char line[LINEMAX] ;
 	unsigned int memtop,memend,i ;
 	FILE *fpi,*fpo ;
 
 	memend = 0x0000 ; /* end address of output coe file */
 
 	printf("Intel HEX to Xilinx memory initfile converter (8bit)\n",argv[0]) ;
 
  
 	/* help message */
 	if (argc < 3) {
 		fprintf(stderr,"%s [infile.hex] [outfile.coe]\n",argv[0]) ;
 		exit(-1) ;
 	}
 
 	/* open input file */
 	if ((fpi = fopen(argv[1],"r")) == NULL) {
 		fprintf(stderr,"Can't open input file [%s]\n",argv[1]) ;
 		exit(-1) ;
 	}
 
 	/* read hex file and distribute bits */
 	while(fgets(line,LINEMAX,fpi) != NULL) {
 		unsigned int reclen,recofs,rectyp ;
 
 		/* +0123456789A            */
 		/*  :LLOOOOTTDD...DDCC[CR] */
 		/*  LL   - Data Count */
 		/*  OOOO - Offset Address */
 		/*  TT   - Record Type, 00 : DATA , 01 : END , ignore other types */
 
 		/* [0] is always ':' */
 		if (line[0] != ':') continue ;
 
 		/* [1,2] is record length */
 		reclen = hex2toint(&line[1]) ;
 		if (reclen == 0) continue ;
 
 		/* [3,4,5,6] is record offset */
 		recofs = hex4toint(&line[3]) ;
 
 		/* [7,8] is recore type */
 		rectyp = hex2toint(&line[7]) ;
 		if (rectyp != 0) continue ; /* 01 is END but ignore here */
 
 		/* write one record to pseudo memory (no error check :-) */
 		for (i = 0;i < reclen;i++) {
 			int data ;
 			data = hex2toint(&line[9+i*2]) ;
 			memory[recofs] = (unsigned char)data & 0xFF;
 			if (recofs > memend) memend = recofs ;
 			recofs ++ ;
 		}
 	}
 	fclose(fpi) ;
 
 #define DEBUG
 #ifdef DEBUG
 	/* dump memory map (for DEBUG) */
 	printf("Memory Content is ....\n") ;
 	for (i = 0;i <= memend;i += 16) {
 		unsigned int j ;
 		printf("%04X :",i) ;
 		for (j = i;(j < i + 16) && (j <= memend);j++) {
 			printf(" %02X",memory[j]) ;
 		}
 		printf("\n") ;
 	}
 #endif
 
 	/* open output file */
 	if ((fpo = fopen(argv[2],"w"))== NULL) {
 		fprintf(stderr,"Can't open output file [%s]\n",argv[2]) ;
 		exit(-1) ;
 	}
 
 	/* Output .coe format */
 	fprintf(fpo,"MEMORY_INITIALIZATION_RADIX= 16 ;\n") ;
 	fprintf(fpo,"MEMORY_INITIALIZATION_VECTOR= ") ;
 	for (i = 0;i <= memend;i += 16) {
 		unsigned int j ;
 		fprintf(fpo,"\n") ;
 		for (j = i;j < i + 16;j++) {
  			fprintf(fpo,"%02X",memory[j]) ;
 			if (j == memend) break ;
 			fprintf(fpo,",") ;
 		}
 	}
 	fprintf(fpo,";") ;
 	fclose(fpo) ;
 }