start moving everything to C

1 files changed, 245 insertions, 0 deletions

diff --git a/source/sa1cpu.c b/source/sa1cpu.c
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--- /dev/null
+++ b/source/sa1cpu.c
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+/*******************************************************************************
+  Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
+ 
+  (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
+                            Jerremy Koot (jkoot@snes9x.com)
+
+  (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
+
+  (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
+                            funkyass (funkyass@spam.shaw.ca),
+                            Joel Yliluoma (http://iki.fi/bisqwit/)
+                            Kris Bleakley (codeviolation@hotmail.com),
+                            Matthew Kendora,
+                            Nach (n-a-c-h@users.sourceforge.net),
+                            Peter Bortas (peter@bortas.org) and
+                            zones (kasumitokoduck@yahoo.com)
+
+  C4 x86 assembler and some C emulation code
+  (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
+                            _Demo_ (_demo_@zsnes.com), and Nach
+
+  C4 C++ code
+  (c) Copyright 2003 Brad Jorsch
+
+  DSP-1 emulator code
+  (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
+                            John Weidman, neviksti (neviksti@hotmail.com),
+                            Kris Bleakley, Andreas Naive
+
+  DSP-2 emulator code
+  (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
+                     Lord Nightmare (lord_nightmare@users.sourceforge.net
+
+  OBC1 emulator code
+  (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
+                            Kris Bleakley
+  Ported from x86 assembler to C by sanmaiwashi
+
+  SPC7110 and RTC C++ emulator code
+  (c) Copyright 2002 Matthew Kendora with research by
+                     zsKnight, John Weidman, and Dark Force
+
+  S-DD1 C emulator code
+  (c) Copyright 2003 Brad Jorsch with research by
+                     Andreas Naive and John Weidman
+ 
+  S-RTC C emulator code
+  (c) Copyright 2001 John Weidman
+  
+  ST010 C++ emulator code
+  (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
+
+  Super FX x86 assembler emulator code 
+  (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault 
+
+  Super FX C emulator code 
+  (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
+
+
+  SH assembler code partly based on x86 assembler code
+  (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) 
+
+ 
+  Specific ports 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.
+*******************************************************************************/
+
+#include "snes9x.h"
+#include "memmap.h"
+#include "ppu.h"
+#include "cpuexec.h"
+
+#include "sa1.h"
+#define CPU SA1
+#define ICPU SA1
+#define S9xGetByte S9xSA1GetByte
+#define S9xGetWord S9xSA1GetWord
+#define S9xSetByte S9xSA1SetByte
+#define S9xSetWord S9xSA1SetWord
+#define S9xSetPCBase S9xSA1SetPCBase
+#define S9xOpcodesM1X1 S9xSA1OpcodesM1X1
+#define S9xOpcodesM1X0 S9xSA1OpcodesM1X0
+#define S9xOpcodesM0X1 S9xSA1OpcodesM0X1
+#define S9xOpcodesM0X0 S9xSA1OpcodesM0X0
+#define S9xOpcodesE1   S9xSA1OpcodesE1
+#define S9xOpcode_IRQ S9xSA1Opcode_IRQ
+#define S9xOpcode_NMI S9xSA1Opcode_NMI
+#define S9xUnpackStatus S9xSA1UnpackStatus
+#define S9xPackStatus S9xSA1PackStatus
+#define S9xFixCycles S9xSA1FixCycles
+#define Immediate8 SA1Immediate8
+#define Immediate16 SA1Immediate16
+#define Relative SA1Relative
+#define RelativeLong SA1RelativeLong
+#define AbsoluteIndexedIndirect SA1AbsoluteIndexedIndirect
+#define AbsoluteIndirectLong SA1AbsoluteIndirectLong
+#define AbsoluteIndirect SA1AbsoluteIndirect
+#define Absolute SA1Absolute
+#define AbsoluteLong SA1AbsoluteLong
+#define Direct SA1Direct
+#define DirectIndirectIndexed SA1DirectIndirectIndexed
+#define DirectIndirectIndexedLong SA1DirectIndirectIndexedLong
+#define DirectIndexedIndirect SA1DirectIndexedIndirect
+#define DirectIndexedX SA1DirectIndexedX
+#define DirectIndexedY SA1DirectIndexedY
+#define AbsoluteIndexedX SA1AbsoluteIndexedX
+#define AbsoluteIndexedY SA1AbsoluteIndexedY
+#define AbsoluteLongIndexedX SA1AbsoluteLongIndexedX
+#define DirectIndirect SA1DirectIndirect
+#define DirectIndirectLong SA1DirectIndirectLong
+#define StackRelative SA1StackRelative
+#define StackRelativeIndirectIndexed SA1StackRelativeIndirectIndexed
+
+#define SetZN16 SA1SetZN16
+#define SetZN8 SA1SetZN8
+#define ADC8 SA1ADC8
+#define ADC16 SA1ADC16
+#define AND16 SA1AND16
+#define AND8 SA1AND8
+#define A_ASL16 SA1A_ASL16
+#define A_ASL8 SA1A_ASL8
+#define ASL16 SA1ASL16
+#define ASL8 SA1ASL8
+#define BIT16 SA1BIT16
+#define BIT8 SA1BIT8
+#define CMP16 SA1CMP16
+#define CMP8 SA1CMP8
+#define CMX16 SA1CMX16
+#define CMX8 SA1CMX8
+#define CMY16 SA1CMY16
+#define CMY8 SA1CMY8
+#define A_DEC16 SA1A_DEC16
+#define A_DEC8 SA1A_DEC8
+#define DEC16 SA1DEC16
+#define DEC8 SA1DEC8
+#define EOR16 SA1EOR16
+#define EOR8 SA1EOR8
+#define A_INC16 SA1A_INC16
+#define A_INC8 SA1A_INC8
+#define INC16 SA1INC16
+#define INC8 SA1INC8
+#define LDA16 SA1LDA16
+#define LDA8 SA1LDA8
+#define LDX16 SA1LDX16
+#define LDX8 SA1LDX8
+#define LDY16 SA1LDY16
+#define LDY8 SA1LDY8
+#define A_LSR16 SA1A_LSR16
+#define A_LSR8 SA1A_LSR8
+#define LSR16 SA1LSR16
+#define LSR8 SA1LSR8
+#define ORA16 SA1ORA16
+#define ORA8 SA1ORA8
+#define A_ROL16 SA1A_ROL16
+#define A_ROL8 SA1A_ROL8
+#define ROL16 SA1ROL16
+#define ROL8 SA1ROL8
+#define A_ROR16 SA1A_ROR16
+#define A_ROR8 SA1A_ROR8
+#define ROR16 SA1ROR16
+#define ROR8 SA1ROR8
+#define SBC16 SA1SBC16
+#define SBC8 SA1SBC8
+#define STA16 SA1STA16
+#define STA8 SA1STA8
+#define STX16 SA1STX16
+#define STX8 SA1STX8
+#define STY16 SA1STY16
+#define STY8 SA1STY8
+#define STZ16 SA1STZ16
+#define STZ8 SA1STZ8
+#define TSB16 SA1TSB16
+#define TSB8 SA1TSB8
+#define TRB16 SA1TRB16
+#define TRB8 SA1TRB8
+
+//#undef CPU_SHUTDOWN
+#undef VAR_CYCLES
+#define SA1_OPCODES
+
+#include "cpuops.cpp"
+
+void S9xSA1MainLoop ()
+{
+    int i;
+
+#if 0
+    if (SA1.Flags & NMI_FLAG)
+    {
+	SA1.Flags &= ~NMI_FLAG;
+	if (SA1.WaitingForInterrupt)
+	{
+	    SA1.WaitingForInterrupt = FALSE;
+	    SA1.PC++;
+	}
+	S9xSA1Opcode_NMI ();
+    }
+#endif
+    if (SA1.Flags & IRQ_PENDING_FLAG)
+    {
+	if (SA1.IRQActive)
+	{
+	    if (SA1.WaitingForInterrupt)
+	    {
+		SA1.WaitingForInterrupt = FALSE;
+		SA1.PC++;
+	    }
+	    if (!SA1CheckFlag (IRQ))
+		S9xSA1Opcode_IRQ ();
+	}
+	else
+	    SA1.Flags &= ~IRQ_PENDING_FLAG;
+    }
+
+    for (i = 0; i < 3 && SA1.Executing; i++)
+    {
+#ifdef CPU_SHUTDOWN
+	SA1.PCAtOpcodeStart = SA1.PC;
+#endif
+	(*SA1.S9xOpcodes [*SA1.PC++].S9xOpcode) ();
+    }
+}
+