将二进制转为Verilog可识别的hex文件（十六进制）
我们拿到可执行的程序大部分是二进制的，如何在verilog中运行？
首先注意：Verilog中使用的Hex与intelhex格式不同！
转化过程：
（1）首先将二进制用工具bin2mif.c转化成verilog的Hex文件，当然先用gcc编译bin2mif.c，然后运行改程序就行，程序源码在文档后面附上。
（2）然后注意：转化的十六进制文件是否是你的verilog需要的对齐格式，有的vcs需要4字节对齐，有的是32字节对齐。还要注意大小端！
/*
* bin2mif/hex converter
*
* Copyright (C) 2011 zengjun opencpu.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* USAGE:
* bin2mif.exe main.bin main.mif 32 (QuartusII memory initialize file)
* bin2mif.exe main.bin main.hex 8 (VerilogHDL $readmemh(filename,registers) file)
*
*/
#include "stdio.h"
#define LOWER(x) (((x)>='A' && (x)<='Z')?(((x)-'A')+'a'):(x))
typedef enum {
f_quartus,
f_ieeeverilog,
f_invalid
} filetype_t;
int main(int argc,char *argv[])
{
FILE *fr = NULL;
FILE *fw = NULL;
int size = 0;
int i = 0;
int ch = 0;
filetype_t ftype = f_invalid;
int len = 0;
int bus_width = 0;
if (argc == 4) {
fr = fopen(argv[1],"rb");
if (fr != NULL) {
fseek(fr,0,SEEK_END);
size = ftell(fr);
fseek(fr,0,SEEK_SET);
len = strlen(argv[2]);
if (len > strlen(".mif")) {
if (argv[2][len-4] == '.' && LOWER(argv[2][len-3]) == 'm' && LOWER(argv[2][len-2]) == 'i' && LOWER(argv[2][len-1]) == 'f') {
ftype = f_quartus;
}
if (argv[2][len-4] == '.' && LOWER(argv[2][len-3]) == 'h' && LOWER(argv[2][len-2]) == 'e' && LOWER(argv[2][len-1]) == 'x') {
ftype = f_ieeeverilog;
}
}
if (ftype != f_invalid)
fw = fopen(argv[2],"wb");
else {
printf("invalid output file type.\n");
return -1;
}
if (fw == NULL) {
printf("open %s failed.\n",argv[2]);
return -2;
}
} else {
printf("open %s failed.\n",argv[1]);
return -3;
}
/* check bus width */
bus_width = atoi(argv[3]);
if (ftype == f_quartus) {
switch (bus_width) {
case 8:
case 16:
case 32:
/* right,nothing to do */
break;
default:
printf("bus_width = %d invalid,only 8,16 and 32 supported.\n",bus_width);
return -4;
}
} else if (ftype == f_ieeeverilog) {
switch (bus_width) {
case 8:
/* right,nothing to do */
break;
default:
printf("bus_width = %d invalid,only 8 supported.\n",bus_width);
return -5;
}
}
if (fw != NULL) {
if (ftype == f_quartus) {
if (bus_width == 8) {
fprintf(fw,"%% CREATED BY OPENCPU.COM %%\r\n\r\nDEPTH = %d;\r\nWIDTH = 8;\r\nADDRESS_RADIX = DEC;\r\nDATA_RADIX = HEX;\r\n\r\nCONTENT\r\nBEGIN\r\n",size);
for (i=0; i> 1);
for (i=0; i> 1);
fseek(fr,i+1,SEEK_SET);
fread(&ch,1,1,fr);
fprintf(fw,"%02x",ch);
fseek(fr,i,SEEK_SET);
fread(&ch,1+0,1,fr);
fprintf(fw,"%02x",ch);
fprintf(fw,";\r\n");
}
fprintf(fw,"END;\r\n");
} else if (bus_width == 32) {
fprintf(fw,"%% CREATED BY OPENCPU.COM %%\r\n\r\nDEPTH = %d;\r\nWIDTH = 32;\r\nADDRESS_RADIX = DEC;\r\nDATA_RADIX = HEX;\r\n\r\nCONTENT\r\nBEGIN\r\n",size >> 2);
for (i=0; i> 2);
fseek(fr,i+3,SEEK_SET);
fread(&ch,1,1,fr);
fprintf(fw,"%02x",ch);
fseek(fr,i+2,SEEK_SET);
fread(&ch,1,1,fr);
fprintf(fw,"%02x",ch);
fseek(fr,i+1,SEEK_SET);
fread(&ch,1,1,fr);
fprintf(fw,"%02x",ch);
fseek(fr,i+0,SEEK_SET);
fread(&ch,1,1,fr);
fprintf(fw,"%02x",ch);
fprintf(fw,";\r\n");
}
fprintf(fw,"END;\r\n");
}
} else if (ftype == f_ieeeverilog) {
for (i=0; i