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/*

 * This file is subject to the terms and conditions of the BSD License. See

 * the file "LICENSE" in the main directory of this archive for more details.

 *

 * Copyright (C) 2014 Aleksander Osman

 */

/* This is a very simple converter from a ihex file generated by the GNU

 * toolchain to a Altera MIF file.

 */

#include <cstdio>

#include <cstring>

#include <cstdlib>

int main() {

    char line[256];

    int depth = 1024;

    printf("WIDTH=32;\n");

    printf("DEPTH=%d;\n", depth);

    printf("ADDRESS_RADIX=HEX;\n");

    printf("DATA_RADIX=HEX;\n");

    printf("CONTENT BEGIN\n");

    int address = 0;

    while(1) {

        char *ret_ptr = fgets(line, sizeof(line), stdin);

        if(ret_ptr == NULL) break;

        int len = strlen(line);

        if(len > 0 && line[0] == ':') { //hex line

            int hex_len, type;

            sscanf(line+1, "%02x", &hex_len);

            sscanf(line+7, "%02x", &type);

            if(type == 0) { //data type

                if((hex_len % 4) != 0) {

                    fprintf(stderr, "Error: data entry size not multiple of 4.\n");

                    return -1;

                }

                for(int i=0; i<hex_len/4; i++) {

                    unsigned int val;

                    sscanf(line+(9+i*8), "%08x", &val);

                    val = ((val >> 24) & 0xFF) | ((val >> 8) & 0xFF00) | ((val << 8) & 0xFF0000) | ((val << 24) & 0xFF000000);

                    printf("%03x : %08x;\n", address++, val);

                }

                while((hex_len/4) < 4) {

                    printf("%03x : %08x;\n", address++, 0);

                    hex_len += 4;

                }

            }

        }

    }

    while(address < depth) printf("%03x : %08x;\n", address++, 0);

    printf("END;\n");

    return 0;

}