+++ /dev/null
-// 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 {
- SSP_GR0, SSP_X, SSP_Y, SSP_A,
- SSP_ST, SSP_STACK, SSP_PC, SSP_P,
- SSP_PM0, SSP_PM1, SSP_PM2, SSP_XST,
- SSP_PM4, SSP_gr13, SSP_PMC, SSP_AL
-};
-
-typedef union
-{
- unsigned int v;
- struct {
- unsigned short l;
- unsigned short h;
- };
-} ssp_reg_t;
-
-typedef struct
-{
- union {
- unsigned short RAM[256*2]; // 000 2 internal RAM banks
- struct {
- unsigned short RAM0[256];
- unsigned short RAM1[256];
- };
- };
- ssp_reg_t gr[16]; // 400 general registers
- union {
- unsigned char r[8]; // 440 BANK pointers
- struct {
- unsigned char r0[4];
- unsigned char r1[4];
- };
- };
- 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_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
- unsigned int tmp1; // 4a8
- unsigned int tmp2; // 4ac
- } drc;
-} ssp1601_t;
-
-
-void ssp1601_reset(ssp1601_t *ssp);
-void ssp1601_run(int cycles);
-