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[/] [plasma/] [trunk/] [tools/] [ram_image.c] - Rev 379
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/* ram_image.c by Steve Rhoads 11/7/05 * This program take the ram_xilinx.vhd file as input * and the code.txt file as input. * It then creates ram_image.vhd as output with the * initialization vectors set to the contents of code.txt. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #define BUF_SIZE (1024*1024) int main(int argc, char *argv[]) { FILE *file; int i, j, index, size, count; char *buf, *ptr, *ptr_list[64*4], text[80]; unsigned int *code; if(argc < 4) { printf("Usage: ram_image <in.vhd> <in_code.txt> <out.vhd>\n"); printf("Usage: ram_image ram_xilinx.vhd code.txt ram_image.vhd\n"); return 0; } buf = (char*)malloc(BUF_SIZE); code = (unsigned int*)malloc(BUF_SIZE); //Read ram_xilinx.vhd file = fopen(argv[1], "rb"); if(file == NULL) { printf("Can't open %s!\n", argv[1]); return -1; } size = fread(buf, 1, BUF_SIZE, file); fclose(file); //Read code.txt file = fopen(argv[2], "r"); if(file == NULL) { printf("Can't open %s!\n", argv[2]); return -1; } for(count = 0; count < 16*1024; ++count) { if(feof(file)) break; fscanf(file, "%x", &code[count]); } fclose(file); //Find 'INIT_00 => X"' ptr = buf; for(i = 0; i < 64*4; ++i) { sprintf(text, "INIT_%2.2X => X\"", i % 64); ptr = strstr(ptr, text); if(ptr == NULL) { printf("ERROR: Can't find '%s' in file!\n", text); return -1; } ptr_list[i] = ptr + strlen(text); } //Modify vhdl source code j = 62; for(i = 0; i < count; ++i) { sprintf(text, "%8.8x", code[i]); index = i / 32; ptr_list[index][j] = text[0]; ptr_list[index][j+1] = text[1]; ptr_list[index+64][j] = text[2]; ptr_list[index+64][j+1] = text[3]; ptr_list[index+128][j] = text[4]; ptr_list[index+128][j+1] = text[5]; ptr_list[index+192][j] = text[6]; ptr_list[index+192][j+1] = text[7]; j -= 2; if(j < 0) j = 62; } //Write ram_image.vhd file = fopen(argv[3], "wb"); if(file == NULL) { printf("Can't write %s!\n", argv[3]); return -1; } fwrite(buf, 1, size, file); fclose(file); free(buf); free(code); return 0; }
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