--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sms.h	Thu Dec 22 19:51:25 2016 -0800
@@ -0,0 +1,26 @@
+#ifndef SMS_H_
+#define SMS_H_
+
+#include "system.h"
+#include "vdp.h"
+#include "psg.h"
+#include "z80_to_x86.h"
+#include "io.h"
+
+#define SMS_RAM_SIZE (8*1024)
+
+typedef struct {
+	system_header header;
+	z80_context   *z80;
+	vdp_context   *vdp;
+	psg_context   *psg;
+	sega_io       io;
+	uint32_t      master_clock;
+	uint32_t      normal_clock;
+	uint8_t       should_return;
+	uint8_t       ram[SMS_RAM_SIZE];
+} sms_context;
+
+sms_context *alloc_configure_sms(void *rom, uint32_t rom_size, void *extra_rom, uint32_t extra_rom_size, uint32_t opts, uint8_t force_region, rom_info *info_out);
+
+#endif //SMS_H_