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Diffstat (limited to 'old/spc700/debug/spc700.h')
| -rw-r--r-- | old/spc700/debug/spc700.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/old/spc700/debug/spc700.h b/old/spc700/debug/spc700.h new file mode 100644 index 0000000..507c247 --- /dev/null +++ b/old/spc700/debug/spc700.h @@ -0,0 +1,172 @@ +/*
+ * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
+ *
+ * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
+ * Jerremy Koot (jkoot@snes9x.com)
+ *
+ * Super FX C emulator code
+ * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
+ * Gary Henderson.
+ * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
+ *
+ * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
+ * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
+ * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
+ *
+ * DOS port code contains the works of other authors. See headers in
+ * individual files.
+ *
+ * Snes9x homepage: http://www.snes9x.com
+ *
+ * Permission to use, copy, modify and distribute Snes9x in both binary and
+ * source form, for non-commercial purposes, is hereby granted without fee,
+ * providing that this license information and copyright notice appear with
+ * all copies and any derived work.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event shall the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Snes9x is freeware for PERSONAL USE only. Commercial users should
+ * seek permission of the copyright holders first. Commercial use includes
+ * charging money for Snes9x or software derived from Snes9x.
+ *
+ * The copyright holders request that bug fixes and improvements to the code
+ * should be forwarded to them so everyone can benefit from the modifications
+ * in future versions.
+ *
+ * Super NES and Super Nintendo Entertainment System are trademarks of
+ * Nintendo Co., Limited and its subsidiary companies.
+ */
+#ifndef _SPC700_H_
+#define _SPC700_H_
+
+#ifdef SPCTOOL
+#define NO_CHANNEL_STRUCT
+#include "spctool/dsp.h"
+#include "spctool/spc700.h"
+#include "spctool/soundmod.h"
+#endif
+
+
+#define Carry 1
+#define Zero 2
+#define Interrupt 4
+#define HalfCarry 8
+#define BreakFlag 16
+#define DirectPageFlag 32
+#define Overflow 64
+#define Negative 128
+
+#define APUClearCarry() (pIAPU->_Carry = 0)
+#define APUSetCarry() (pIAPU->_Carry = 1)
+#define APUSetInterrupt() (pIAPU->P |= Interrupt)
+#define APUClearInterrupt() (pIAPU->P &= ~Interrupt)
+#define APUSetHalfCarry() (pIAPU->P |= HalfCarry)
+#define APUClearHalfCarry() (pIAPU->P &= ~HalfCarry)
+#define APUSetBreak() (pIAPU->P |= BreakFlag)
+#define APUClearBreak() (pIAPU->P &= ~BreakFlag)
+#define APUSetDirectPage() (pIAPU->P |= DirectPageFlag)
+#define APUClearDirectPage() (pIAPU->P &= ~DirectPageFlag)
+#define APUSetOverflow() (pIAPU->_Overflow = 1)
+#define APUClearOverflow() (pIAPU->_Overflow = 0)
+
+#define APUCheckZero() (pIAPU->_Zero == 0)
+#define APUCheckCarry() (pIAPU->_Carry)
+#define APUCheckInterrupt() (pIAPU->P & Interrupt)
+#define APUCheckHalfCarry() (pIAPU->P & HalfCarry)
+#define APUCheckBreak() (pIAPU->P & BreakFlag)
+#define APUCheckDirectPage() (pIAPU->P & DirectPageFlag)
+#define APUCheckOverflow() (pIAPU->_Overflow)
+#define APUCheckNegative() (pIAPU->_Zero & 0x80)
+
+//#define APUClearFlags(f) (IAPU.P &= ~(f))
+//#define APUSetFlags(f) (IAPU.P |= (f))
+//#define APUCheckFlag(f) (IAPU.P & (f))
+
+typedef union
+{
+#ifdef LSB_FIRST
+ struct { uint8 A, Y; } B;
+#else
+ struct { uint8 Y, A; } B;
+#endif
+ uint16 W;
+ uint32 _padder; // make sure this whole thing takes 4 bytes
+} YAndA;
+
+struct SAPURegisters{
+ uint8 P;
+ YAndA YA;
+ uint8 X;
+ uint8 S;
+ uint16 PC;
+};
+
+//EXTERN_C struct SAPURegisters APURegisters;
+
+// Needed by ILLUSION OF GAIA
+//#define ONE_APU_CYCLE 14
+#define ONE_APU_CYCLE 21
+
+// Needed by all games written by the software company called Human
+//#define ONE_APU_CYCLE_HUMAN 17
+#define ONE_APU_CYCLE_HUMAN 21
+
+// 1.953us := 1.024065.54MHz
+
+// return cycles left (always negative)
+extern "C" int spc700_execute(int cycles);
+extern "C" uint32 Spc700JumpTab;
+
+#ifdef SPCTOOL
+EXTERN_C int32 ESPC (int32);
+
+#define APU_EXECUTE() \
+{ \
+ int32 l = (CPU.Cycles - CPU.APU_Cycles) / 14; \
+ if (l > 0) \
+ { \
+ l -= _EmuSPC(l); \
+ CPU.APU_Cycles += l * 14; \
+ } \
+}
+
+#else
+
+#ifdef DEBUGGER
+#define APU_EXECUTE1() \
+{ \
+ if (APU.Flags & TRACE_FLAG) \
+ S9xTraceAPU ();\
+ CPU.APU_Cycles += S9xAPUCycles [*IAPU.PC]; \
+ (*S9xApuOpcodes[*IAPU.PC]) (); \
+}
+#else
+#define APU_EXECUTE1() \
+{ \
+ IAPU.asmJumpTab = &Spc700JumpTab; \
+ memcpy(&IAPU2, &IAPU, sizeof(IAPU)); \
+ CPU.APU_Cycles += S9xAPUCycles [*IAPU.PC]; \
+ IAPU.opcode = *IAPU.PC; \
+ pIAPU = &IAPU; \
+ (*S9xApuOpcodes[*IAPU.PC]) (); \
+ if(IAPU._Carry) IAPU.P |= Carry; else IAPU.P &= ~Carry; \
+ if(IAPU._Overflow) IAPU.P |= Overflow; else IAPU.P &= ~Overflow; \
+ pIAPU = &IAPU2; \
+ spc700_execute(0); \
+ APUCompare(); \
+ IAPU.ya_prev = IAPU.YA.W; \
+ IAPU.x_prev = IAPU.X; \
+}
+#endif
+
+#define APU_EXECUTE(mode) \
+if (CPU.APU_APUExecuting == mode) \
+{\
+ while (CPU.APU_Cycles <= CPU.Cycles) \
+ APU_EXECUTE1(); \
+}
+#endif
+
+#endif
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