[megadrive.git] / hexed / transfer.h

/* all data is big endian */

#define CMD_PREFIX	0x5a
#define CMD_PC_SEND	0xc1	/* send to MD:   addr[3], len[3], data[] */
#define CMD_PC_RECV	0xc2	/* recv from MD: addr[3], len[3], data[] */
#define CMD_JUMP	0xc3	/* jump to addr: addr[3] */
#define CMD_IOSEQ	0xc4	/* perform i/o ops: count[2], [type[1], addr[3], data[{0,1,2,4}]]* */
#define CMD_LOADSTATE	0xc5	/* load PD state: vram[64k], cram[128], vsram[128], vdp[32] */
#define CMD_VRAM_RECV	0xc6	/* recv from MD: vram[64k] */
#define CMD_TEST	0xc7	/* test code */

#define CMD_FIRST	CMD_PC_SEND
#define CMD_LAST	CMD_TEST

#define IOSEQ_R8	0xb0
#define IOSEQ_R16	0xb1
#define IOSEQ_R32	0xb2
#define IOSEQ_W8	0xb3
#define IOSEQ_W16	0xb4
#define IOSEQ_W32	0xb5
Commit	Line	Data
	1	/* all data is big endian */
	2
	3	#define CMD_PREFIX 0x5a
	4	#define CMD_PC_SEND 0xc1 /* send to MD: addr[3], len[3], data[] */
	5	#define CMD_PC_RECV 0xc2 /* recv from MD: addr[3], len[3], data[] */
	6	#define CMD_JUMP 0xc3 /* jump to addr: addr[3] */
	7	#define CMD_IOSEQ 0xc4 /* perform i/o ops: count[2], [type[1], addr[3], data[{0,1,2,4}]]* */
	8	#define CMD_LOADSTATE 0xc5 /* load PD state: vram[64k], cram[128], vsram[128], vdp[32] */
	9	#define CMD_VRAM_RECV 0xc6 /* recv from MD: vram[64k] */
	10	#define CMD_TEST 0xc7 /* test code */
	11
	12	#define CMD_FIRST CMD_PC_SEND
	13	#define CMD_LAST CMD_TEST
	14
	15	#define IOSEQ_R8 0xb0
	16	#define IOSEQ_R16 0xb1
	17	#define IOSEQ_R32 0xb2
	18	#define IOSEQ_W8 0xb3
	19	#define IOSEQ_W16 0xb4
	20	#define IOSEQ_W32 0xb5