1*b543b09fSZihao Yu #include <stdio.h> 2*b543b09fSZihao Yu #include <assert.h> 3*b543b09fSZihao Yu #include <stdint.h> 4*b543b09fSZihao Yu 5*b543b09fSZihao Yu int main(int argc, char *argv[]) { 6*b543b09fSZihao Yu assert(argc == 3); 7*b543b09fSZihao Yu 8*b543b09fSZihao Yu FILE *in = fopen(argv[1], "rb"); 9*b543b09fSZihao Yu assert(in != NULL); 10*b543b09fSZihao Yu 11*b543b09fSZihao Yu FILE *out = fopen(argv[2], "w"); 12*b543b09fSZihao Yu assert(out != NULL); 13*b543b09fSZihao Yu 14*b543b09fSZihao Yu int i; 15*b543b09fSZihao Yu for (i = 0; i < 0x100000; i ++) { 16*b543b09fSZihao Yu fprintf(out, "00\n"); 17*b543b09fSZihao Yu } 18*b543b09fSZihao Yu 19*b543b09fSZihao Yu uint8_t b; 20*b543b09fSZihao Yu int ret; 21*b543b09fSZihao Yu while ((ret = fread(&b, 1, 1, in)) != 0) { 22*b543b09fSZihao Yu fprintf(out, "%1x%1x\n", b >> 4, b & 0xf); 23*b543b09fSZihao Yu } 24*b543b09fSZihao Yu 25*b543b09fSZihao Yu fclose(in); 26*b543b09fSZihao Yu fclose(out); 27*b543b09fSZihao Yu 28*b543b09fSZihao Yu return 0; 29*b543b09fSZihao Yu } 30