first mknes commit

1 files changed, 28 insertions, 0 deletions

diff --git a/mapper.c b/mapper.c
new file mode 100644
index 0000000..620be7d
--- /dev/null
+++ b/mapper.c
@@ -0,0 +1,28 @@
+
+
+#include "mapper_nrom.c"
+// #include "mapper_mmc1.c"
+// #include "mapper_uxrom.c"
+
+static void mapper_setup(struct state *state) {
+	switch(state->ines.mapper) {
+	case 0:
+		state->mapper.read  = mapper_nrom_read;
+		state->mapper.write = mapper_nrom_write;
+		state->mapper.tick  = mapper_nrom_tick;
+		state->mapper.init  = mapper_nrom_init;
+		state->mapper.init(state);
+		break;
+
+	default:
+		// fallback: NROM-compatible
+		state->mapper.read  = mapper_nrom_read;
+		state->mapper.write = mapper_nrom_write;
+		state->mapper.tick  = mapper_nrom_tick;
+		state->mapper.init  = mapper_nrom_init;
+		state->mapper.init(state);
+		break;
+	}
+}
+
+