repo2/firmware_legacy/mif_file_stuff/zpuromgen.c
| 46 | markw | // zpuromgen.c
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//
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// Program to turn a binary file into a VHDL lookup table.
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// by Adam Pierce
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// 29-Feb-2008
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//
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// This software is free to use by anyone for any purpose.
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//
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#include <unistd.h>
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#include <stdio.h>
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typedef unsigned char BYTE;
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main(int argc, char **argv)
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{
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BYTE opcode[4];
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int fd;
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int addr = 0;
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ssize_t s;
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// Check the user has given us an input file.
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if(argc < 2)
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{
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printf("Usage: %s <binary_file>\n\n", argv[0]);
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return 1;
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}
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// Open the input file.
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fd = open(argv[1], 0);
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if(fd == -1)
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{
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perror("File Open");
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return 2;
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}
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while(1)
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{
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// Read 32 bits.
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s = read(fd, opcode, 4);
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if(s == -1)
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{
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perror("File read");
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return 3;
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}
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if(s == 0)
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break; // End of file.
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// Output to STDOUT.
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printf("%04x : %02x%02x%02x%02x;\n",
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addr++, opcode[0], opcode[1],
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opcode[2], opcode[3]);
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}
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close(fd);
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return 0;
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}
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