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Fix major battery save regressions introduced by the last release, fixes #282

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This commit is contained in:
Lior Halphon 2020-08-06 19:33:33 +03:00
parent 5b2eec214b
commit bce4bfba61
1 changed files with 8 additions and 3 deletions
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11
Core/memory.c
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@ -205,7 +205,7 @@ static uint8_t read_mbc_ram(GB_gameboy_t *gb, uint16_t addr)
return GB_camera_read_register(gb, addr);
}
if (!gb->mbc_ram || gb->mbc_ram_size) {
if (!gb->mbc_ram || !gb->mbc_ram_size) {
return 0xFF;
}
@ -214,7 +214,7 @@ static uint8_t read_mbc_ram(GB_gameboy_t *gb, uint16_t addr)
}
uint8_t effective_bank = gb->mbc_ram_bank;
if (gb->is_mbc30) {
if (gb->cartridge_type->mbc_type == GB_MBC3 && !gb->is_mbc30) {
effective_bank &= 0x3;
}
uint8_t ret = gb->mbc_ram[((addr & 0x1FFF) + effective_bank * 0x2000) & (gb->mbc_ram_size - 1)];
@ -708,8 +708,13 @@ static void write_mbc_ram(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
if (!gb->mbc_ram || !gb->mbc_ram_size) {
return;
}
uint8_t effective_bank = gb->mbc_ram_bank;
if (gb->cartridge_type->mbc_type == GB_MBC3 && !gb->is_mbc30) {
effective_bank &= 0x3;
}
gb->mbc_ram[((addr & 0x1FFF) + gb->mbc_ram_bank * 0x2000) & (gb->mbc_ram_size - 1)] = value;
gb->mbc_ram[((addr & 0x1FFF) + effective_bank * 0x2000) & (gb->mbc_ram_size - 1)] = value;
}
static void write_ram(GB_gameboy_t *gb, uint16_t addr, uint8_t value)