1 files changed, 15 insertions, 0 deletions
diff --git a/bus.h b/bus.h
new file mode 100644
index 0000000..4be9527
--- /dev/null
+++ b/bus.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#define ROM_START       (0)
+#define ROM_SIZE        (0x400000)
+#define RAM_START       (0xFF0000)
+#define RAM_SIZE        (0x10000)
+#define IO1_START       (0xA10000)
+#define IO1_SIZE        (0x4004)
+#define IO2_START       (0xC00000)
+#define IO2_SIZE        (0x20)
+
+extern unsigned char g_rom[ROM_SIZE];
+extern unsigned char g_ram[RAM_SIZE];
+extern unsigned char g_io1[IO1_SIZE];
+extern unsigned char g_io2[IO2_SIZE];