X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fcarthw%2Fsvp%2Fssp16.h;h=fddb5ed73b637254a7cdcda40f19b4cd63483921;hb=71bb1b7bd0186eb056609fec62a134dcaadbffdf;hp=e2be484ffb6313eddb43092fb33c4a0e0742ac06;hpb=30752975e044377d40b2d496d17591d96a02c3af;p=picodrive.git

diff --git a/Pico/carthw/svp/ssp16.h b/Pico/carthw/svp/ssp16.h
index e2be484..fddb5ed 100644
--- a/Pico/carthw/svp/ssp16.h
+++ b/Pico/carthw/svp/ssp16.h
@@ -1,3 +1,10 @@
+// basic, incomplete SSP160x (SSP1601?) interpreter
+
+// (c) Copyright 2008, Grazvydas "notaz" Ignotas
+// Free for non-commercial use.
+
+// For commercial use, separate licencing terms must be obtained.
+
 
 // register names
 enum {
@@ -19,30 +26,42 @@ typedef union
 typedef struct
 {
 	union {
-		unsigned short RAM[256*2];	// 2 internal RAM banks
+		unsigned short RAM[256*2];	// 000 2 internal RAM banks
 		struct {
 			unsigned short RAM0[256];
 			unsigned short RAM1[256];
 		};
 	};
-	ssp_reg_t gr[16];	// general registers
+	ssp_reg_t gr[16];			// 400 general registers
 	union {
-		unsigned char r[8];	// BANK pointers
+		unsigned char r[8];		// 440 BANK pointers
 		struct {
 			unsigned char r0[4];
 			unsigned char r1[4];
 		};
 	};
-	unsigned short stack[6];
-	unsigned int pmac_read[6];	// read modes/addrs for PM0-PM5
-	unsigned int pmac_write[6];	// write ...
+	unsigned short stack[6];		// 448
+	unsigned int pmac_read[6];		// 454 read modes/addrs for PM0-PM5
+	unsigned int pmac_write[6];		// 46c write ...
 	//
 	#define SSP_PMC_HAVE_ADDR	0x0001	// address written to PMAC, waiting for mode
 	#define SSP_PMC_SET		0x0002	// PMAC is set
-	#define SSP_30FE06_WAIT		0x4000	// ssp tight loops on 30FE08 to become non-zero
-	#define SSP_30FE08_WAIT		0x8000	// same for 30FE06
-	unsigned int emu_status;
-	unsigned int pad[30];
+	#define SSP_WAIT_PM0		0x2000	// bit1 in PM0
+	#define SSP_WAIT_30FE06		0x4000	// ssp tight loops on 30FE06 to become non-zero
+	#define SSP_WAIT_30FE08		0x8000	// same for 30FE06
+	#define SSP_WAIT_MASK		0xe000
+	unsigned int emu_status;		// 484
+	/* used by recompiler only: */
+	struct {
+		unsigned int ptr_rom;		// 488
+		unsigned int ptr_iram_rom;	// 48c
+		unsigned int ptr_dram;		// 490
+		unsigned int iram_dirty;	// 494
+		unsigned int iram_context;	// 498
+		unsigned int ptr_btable;	// 49c
+		unsigned int ptr_btable_iram;	// 4a0
+		unsigned int tmp0;		// 4a4
+	} drc;
 } ssp1601_t;