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authorPeter Fors <peter.fors@mindkiller.com>2025-04-03 20:02:00 +0200
committerPeter Fors <peter.fors@mindkiller.com>2025-04-03 20:02:00 +0200
commit6274071e3857c1640cc5aef804cb86509ab312f9 (patch)
tree1a4e56b3c3b4bfb4d8f0d2f588487d6e227c3b27 /mapper_001.c
parent971e51eebbf088f1ac590da1fc57e803eb1ee8cf (diff)
Move to glfw
Diffstat (limited to 'mapper_001.c')
-rw-r--r--mapper_001.c23
1 files changed, 23 insertions, 0 deletions
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;
+}
+