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Add support for multi-line cheat-codes

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This commit is contained in:
ds22x 2022-02-26 00:50:20 +01:00
parent 46a66d6d8f
commit 26c583e1c5
1 changed files with 55 additions and 9 deletions
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64
bsnes/target-libretro/libretro.cpp
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@ -713,21 +713,67 @@ void retro_cheat_reset()
void retro_cheat_set(unsigned index, bool enabled, const char *code)
{
string cheat = string(code);
bool decoded = false;
int chl = 0;
if (program->gameBoy.program)
{
decoded = decodeGB(cheat);
return;
}
else
{
decoded = decodeSNES(cheat);
}
if (enabled && decoded)
{
cheatList.append(cheat);
emulator->cheats(cheatList);
if(code[4u] == '-') {
for(;;) {
string code1 = {cheat.slice((0 + chl), 4), cheat.slice((5 + chl), 4)};
code1.transform("DF4709156BC8A23E", "df4709156bc8a23e");
code1.transform("df4709156bc8a23e", "0123456789abcdef");
uint32_t r = toHex(code1);
uint address =
(!!(r & 0x002000) << 23) | (!!(r & 0x001000) << 22)
| (!!(r & 0x000800) << 21) | (!!(r & 0x000400) << 20)
| (!!(r & 0x000020) << 19) | (!!(r & 0x000010) << 18)
| (!!(r & 0x000008) << 17) | (!!(r & 0x000004) << 16)
| (!!(r & 0x800000) << 15) | (!!(r & 0x400000) << 14)
| (!!(r & 0x200000) << 13) | (!!(r & 0x100000) << 12)
| (!!(r & 0x000002) << 11) | (!!(r & 0x000001) << 10)
| (!!(r & 0x008000) << 9) | (!!(r & 0x004000) << 8)
| (!!(r & 0x080000) << 7) | (!!(r & 0x040000) << 6)
| (!!(r & 0x020000) << 5) | (!!(r & 0x010000) << 4)
| (!!(r & 0x000200) << 3) | (!!(r & 0x000100) << 2)
| (!!(r & 0x000080) << 1) | (!!(r & 0x000040) << 0);
uint data = r >> 24;
code1 = {hex(address, 6L), "=", hex(data, 2L)};
cheatList.append(code1);
emulator->cheats(cheatList);
if(code[(9 + chl)] != '+') {
return;
}
chl = (chl + 10);
}
}
else if(code[8u] == '+') {
for(;;) {
string code1 = {cheat.slice((0 + chl), 8)};
uint32_t r = toHex(code1);
uint address = r >> 8;
uint data = r & 0xff;
code1 = {hex(address, 6L), "=", hex(data, 2L)};
cheatList.append(code1);
emulator->cheats(cheatList);
if(code[(8 + chl)] != '+') {
return;
}
chl = (chl + 9);
}
}
else {
string code1 = {cheat.slice((0 + chl), 8)};
uint32_t r = toHex(code1);
uint address = r >> 8;
uint data = r & 0xff;
code1 = {hex(address, 6L), "=", hex(data, 2L)};
cheatList.append(code1);
emulator->cheats(cheatList);
}
}
}