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// zpuromgen.c
//
// Program to turn a binary file into a VHDL lookup table.
// by Adam Pierce
// 29-Feb-2008
//
// This software is free to use by anyone for any purpose.
//
#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
typedef uint8_t BYTE;
main(int argc, char **argv)
{
BYTE opcode[4];
int fd;
int addr = 0;
ssize_t s;
// Check the user has given us an input file.
if(argc < 2)
{
printf("Usage: %s <binary_file>\n\n", argv[0]);
return 1;
}
// Open the input file.
fd = open(argv[1], 0);
if(fd == -1)
{
perror("File Open");
return 2;
}
while(1)
{
// Read 32 bits.
s = read(fd, opcode, 4);
if(s == -1)
{
perror("File read");
return 3;
}
if(s == 0)
break; // End of file.
// Output to STDOUT.
printf("%6d => x\"%02x%02x%02x%02x\",\n",
addr++, opcode[0], opcode[1],
opcode[2], opcode[3]);
}
close(fd);
return 0;
}
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