diff options
Diffstat (limited to 'mapper_2002.c')
| -rw-r--r-- | mapper_2002.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/mapper_2002.c b/mapper_2002.c deleted file mode 100644 index 700a24b..0000000 --- a/mapper_2002.c +++ /dev/null @@ -1,28 +0,0 @@ - -static void mapper_2002_init(struct nes_state *state) { - state->map.m2002.prg_bank0 = state->prg_rom; // default to bank 0 - state->map.m2002.prg_bank1 = state->prg_rom + state->ines.prg_size - 0x4000; -} - -static uint8_t mapper_2002_prg_read(struct nes_state *state, uint32_t addr) { - if(addr >= 0x8000 && addr < 0xc000) { - return state->map.m2002.prg_bank0[addr & 0x3fff]; - } else if(addr >= 0xc000) { - return state->map.m2002.prg_bank1[addr & 0x3fff]; - } - return 0; -} - -static void mapper_2002_prg_write(struct nes_state *state, uint32_t addr, uint8_t value) { - if(addr >= 0x8000) { - state->map.m2002.prg_bank0 = state->prg_rom + ((value & 0x0f) * 0x4000); - } -} - -static uint8_t mapper_2002_chr_read(struct nes_state *state, uint32_t addr) { - return state->chr_ram[addr]; -} - -static void mapper_2002_chr_write(struct nes_state *state, uint32_t addr, uint8_t value) { - state->chr_ram[addr] = value; -} |