apple2ix/src/genrom.c

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2.4 KiB
C
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/*
* Apple // emulator for *nix
*
* ROM converter
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
static const char *roms[] = {
NULL,
"apple_iie_rom",
"slot6_rom",
NULL
};
static const char *bools[] = {
NULL,
"iie_rom_loaded",
"slot6_rom_loaded",
NULL
};
static const size_t sizes[] = {
0,
32768,
256,
0
};
static void convert_rom(const uint8_t *buf, const size_t len) {
for (size_t i=0; i<len; i++) {
uint8_t ch = buf[i];
if ((i % 16) == 0) {
printf("\n");
}
printf(" 0x%02x", ch);
if (i < len-1) {
printf(",");
}
}
}
int main(int argc, const char *argv[]) {
printf("/* Apple II ROM data\n"
" *\n"
" * THIS FILE IS AUTOMATICALLY GENERATED --- DO NOT EDIT\n"
" */\n"
" \n"
"#include <stdbool.h>\n"
"#include <stdint.h>\n");
FILE *fp = NULL;
bool error = true;
uint8_t *buf = NULL;
size_t num = 0;
unsigned int idx = 1;
do {
printf("\n/* ROM : %s */\n", roms[idx]);
error = true;
do {
if (idx >= argc) {
fprintf(stderr, "WARNING : rom file unspecified\n");
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break;
}
fp = fopen(argv[idx], "r");
if (!fp) {
fprintf(stderr, "WARNING : cannot open %s\n", argv[idx]);
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break;
}
buf = malloc(sizes[idx]);
if (!buf) {
break;
}
num = fread(buf, 1, sizes[idx], fp);
if (num != sizes[idx]) {
fprintf(stderr, "WARNING : rom file size %u mismatched with expected %u\n", (unsigned int)num, (unsigned int)sizes[idx]);
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break;
}
fclose(fp);
printf("\nbool %s = true;\n", bools[idx]);
printf("\nuint8_t %s[%u] = {", roms[idx], (unsigned int)sizes[idx]);
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convert_rom(buf, sizes[idx]);
printf("\n};\n");
error = false;
} while(0);
if (error) {
printf("\nbool %s = false;\n", bools[idx]);
printf("\nuint8_t %s[%u] = { 0 };\n", roms[idx], (unsigned int)sizes[idx]);
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}
if (buf) {
free(buf);
buf = NULL;
}
} while(roms[++idx] != NULL);
return 0; // no error so build can continue
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}