X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hexed%2Ftransfer.h;h=118b752a8c8af1e9d74fe7fe244b2e92fb4a650f;hb=HEAD;hp=b1aa7cd54fa9ce15adb3382f9527d4c97cbb3652;hpb=272bd2ec7473ac1f7f29b27752f5402283306cce;p=megadrive.git

diff --git a/hexed/transfer.h b/hexed/transfer.h
index b1aa7cd..118b752 100644
--- a/hexed/transfer.h
+++ b/hexed/transfer.h
@@ -1,8 +1,20 @@
+/* all data is big endian */
+
 #define CMD_PREFIX	0x5a
-#define CMD_MD_SEND	0xc1	/* send to MD:   addr[3], len[3], data[] */
-#define CMD_MD_RECV	0xc2	/* recv from MD: addr[3], len[3], data[] */
+#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_TEST	0xc4	/* test code */
+#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_MD_SEND
+#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