1 files changed, 3 insertions, 0 deletions
diff --git a/bus.hpp b/bus.hpp
index 1b4503d..6d87da3 100644
--- a/bus.hpp
+++ b/bus.hpp
@@ -11,6 +11,8 @@
 #define ROM_SIZE        (0x400000)
 #define RAM_START       (0xFF0000)
 #define RAM_SIZE        (0x10000)
+#define SOUND_RAM_START (0xA00000)
+#define SOUND_RAM_SIZE  (0x2000)
 #define IO1_START       (0xA10000)
 #define IO1_SIZE        (0x4004)
 #define IO2_START       (0xC00000)
@@ -22,6 +24,7 @@ struct Breakpoint {
 
 extern unsigned char g_rom[ROM_SIZE];
 extern unsigned char g_ram[RAM_SIZE];
+extern unsigned char g_sound_ram[SOUND_RAM_SIZE];
 extern unsigned char g_io1[IO1_SIZE];
 extern unsigned char g_io2[IO2_SIZE];
 extern std::vector<Breakpoint> code_bkpts, read_bkpts, write_bkpts, access_bkpts;