From 6274071e3857c1640cc5aef804cb86509ab312f9 Mon Sep 17 00:00:00 2001 From: Peter Fors Date: Thu, 3 Apr 2025 20:02:00 +0200 Subject: Move to glfw --- mapper_001.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 mapper_001.c (limited to 'mapper_001.c') diff --git a/mapper_001.c b/mapper_001.c new file mode 100644 index 0000000..8c65367 --- /dev/null +++ b/mapper_001.c @@ -0,0 +1,23 @@ + + +static void mapper_001_init(struct nes_state *state) { + // Nothing to initialize for 001 +} + +static uint8_t mapper_001_read(struct nes_state *state, uint32_t addr) { + uint32_t prg_size = state->ines.prg_size; + + uint32_t mask = (state->ines.prg_size == 16384) ? 0x3fff : 0x7fff; + return state->rom[addr & mask]; +} + +static void mapper_001_write(struct nes_state *state, uint32_t addr, uint8_t value) { + (void)state; + (void)addr; + (void)value; +} + +static void mapper_001_tick(struct nes_state *state) { + (void)state; +} + -- cgit v1.2.3