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mgba
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GBA: Widen multiboot search

This commit is contained in:
Vicki Pfau 2022-02-20 21:23:40 -08:00
parent 91911fe092
commit 862bd15afc
1 changed files with 6 additions and 6 deletions
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12
src/gba/gba.c
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@ -677,16 +677,16 @@ bool GBAIsMB(struct VFile* vf) {
int romAddrs = 0;
int romLoads = 0;
int i;
for (i = 0; i < 80; ++i) {
for (i = 0; i < 128; ++i) {
if (vf->read(vf, &signature, sizeof(signature)) != sizeof(signature)) {
break;
}
pc += 4;
LOAD_32(opcode, 0, &signature);
if ((opcode & ~0x7FF) == BASE_WORKING_RAM) {
if ((opcode & ~0x1FFFF) == BASE_WORKING_RAM) {
++wramAddrs;
}
if ((opcode & ~0x7FF) == BASE_CART0) {
if ((opcode & ~0x1FFFF) == BASE_CART0) {
++romAddrs;
}
ARMDecodeARM(opcode, &info);
@ -709,15 +709,15 @@ bool GBAIsMB(struct VFile* vf) {
if (vf->seek(vf, pc, SEEK_SET) < 0) {
break;
}
if ((immediate & ~0x7FF) == BASE_WORKING_RAM) {
if ((immediate & ~0x1FFFF) == BASE_WORKING_RAM) {
++wramLoads;
}
if ((immediate & ~0x7FF) == BASE_CART0) {
if ((immediate & ~0x1FFFF) == BASE_CART0) {
++romLoads;
}
}
}
if (romLoads + romAddrs > 2) {
if (romLoads + romAddrs >= 2) {
return false;
}
if (wramLoads + wramAddrs) {