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Refactor macros for fixing/trashing header values (#1401)

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This commit is contained in:
Sylvie
2024-06-13 10:59:48 -04:00
committed by GitHub
parent 39e9315e8a
commit c5c6cc9794
1 changed files with 27 additions and 45 deletions
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72
src/fix/main.cpp
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@@ -380,12 +380,12 @@ static MbcType parseMBC(char const *name) {
// Read "additional features"
uint8_t features = 0;
#define RAM 0x80
#define BATTERY 0x40
#define TIMER 0x20
#define RUMBLE 0x10
#define SENSOR 0x08
#define MULTIRUMBLE 0x04
#define RAM (1 << 7)
#define BATTERY (1 << 6)
#define TIMER (1 << 5)
#define RUMBLE (1 << 4)
#define SENSOR (1 << 3)
#define MULTIRUMBLE (1 << 2)
for (;;) {
// Trim off trailing whitespace
@@ -744,14 +744,15 @@ static uint8_t const trashLogo[] = {
0xFF ^ 0x99, 0xFF ^ 0x9F, 0xFF ^ 0xBB, 0xFF ^ 0xB9, 0xFF ^ 0x33, 0xFF ^ 0x3E,
};
static enum { DMG, BOTH, CGB } model = DMG; // If DMG, byte is left alone
#define FIX_LOGO 0x80
#define TRASH_LOGO 0x40
#define FIX_HEADER_SUM 0x20
#define TRASH_HEADER_SUM 0x10
#define FIX_GLOBAL_SUM 0x08
#define TRASH_GLOBAL_SUM 0x04
static uint8_t fixSpec = 0;
#define FIX_LOGO (1 << 7)
#define TRASH_LOGO (1 << 6)
#define FIX_HEADER_SUM (1 << 5)
#define TRASH_HEADER_SUM (1 << 4)
#define FIX_GLOBAL_SUM (1 << 3)
#define TRASH_GLOBAL_SUM (1 << 2)
static enum { DMG, BOTH, CGB } model = DMG; // If DMG, byte is left alone
static char const *gameID = nullptr;
static uint8_t gameIDLen;
static bool japanese = true;
@@ -1257,42 +1258,23 @@ int main(int argc, char *argv[]) {
fixSpec = 0;
while (*musl_optarg) {
switch (*musl_optarg) {
#define SPEC_l FIX_LOGO
#define SPEC_L TRASH_LOGO
#define SPEC_h FIX_HEADER_SUM
#define SPEC_H TRASH_HEADER_SUM
#define SPEC_g FIX_GLOBAL_SUM
#define SPEC_G TRASH_GLOBAL_SUM
#define overrideSpec(cur, bad) \
do { \
if (fixSpec & CAT(SPEC_, bad)) \
#define OVERRIDE_SPEC(cur, bad, curFlag, badFlag) \
case STR(cur)[0]: \
if (fixSpec & badFlag) \
fprintf(stderr, "warning: '" STR(cur) "' overriding '" STR(bad) "' in fix spec\n"); \
fixSpec = (fixSpec & ~CAT(SPEC_, bad)) | CAT(SPEC_, cur); \
} while (0)
case 'l':
overrideSpec(l, L);
break;
case 'L':
overrideSpec(L, l);
break;
case 'h':
overrideSpec(h, H);
break;
case 'H':
overrideSpec(H, h);
break;
case 'g':
overrideSpec(g, G);
break;
case 'G':
overrideSpec(G, g);
break;
fixSpec = (fixSpec & ~badFlag) | curFlag; \
break
#define overrideSpecs(fix, fixFlag, trash, trashFlag) \
OVERRIDE_SPEC(fix, trash, fixFlag, trashFlag); \
OVERRIDE_SPEC(trash, fix, trashFlag, fixFlag)
overrideSpecs(l, FIX_LOGO, L, TRASH_LOGO);
overrideSpecs(h, FIX_HEADER_SUM, H, TRASH_HEADER_SUM);
overrideSpecs(g, FIX_GLOBAL_SUM, G, TRASH_GLOBAL_SUM);
#undef OVERRIDE_SPEC
#undef overrideSpecs
default:
fprintf(stderr, "warning: Ignoring '%c' in fix spec\n", *musl_optarg);
#undef overrideSpec
}
musl_optarg++;
}