snes9xgx/source/snes9x/cpumacro.h

/**********************************************************************************
  Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.

  (c) Copyright 1996 - 2002  Gary Henderson (gary.henderson@ntlworld.com),
                             Jerremy Koot (jkoot@snes9x.com)

  (c) Copyright 2002 - 2004  Matthew Kendora

  (c) Copyright 2002 - 2005  Peter Bortas (peter@bortas.org)

  (c) Copyright 2004 - 2005  Joel Yliluoma (http://iki.fi/bisqwit/)

  (c) Copyright 2001 - 2006  John Weidman (jweidman@slip.net)

  (c) Copyright 2002 - 2006  funkyass (funkyass@spam.shaw.ca),
                             Kris Bleakley (codeviolation@hotmail.com)

  (c) Copyright 2002 - 2007  Brad Jorsch (anomie@users.sourceforge.net),
                             Nach (n-a-c-h@users.sourceforge.net),
                             zones (kasumitokoduck@yahoo.com)

  (c) Copyright 2006 - 2007  nitsuja


  BS-X C emulator code
  (c) Copyright 2005 - 2006  Dreamer Nom,
                             zones

  C4 x86 assembler and some C emulation code
  (c) Copyright 2000 - 2003  _Demo_ (_demo_@zsnes.com),
                             Nach,
                             zsKnight (zsknight@zsnes.com)

  C4 C++ code
  (c) Copyright 2003 - 2006  Brad Jorsch,
                             Nach

  DSP-1 emulator code
  (c) Copyright 1998 - 2006  _Demo_,
                             Andreas Naive (andreasnaive@gmail.com)
                             Gary Henderson,
                             Ivar (ivar@snes9x.com),
                             John Weidman,
                             Kris Bleakley,
                             Matthew Kendora,
                             Nach,
                             neviksti (neviksti@hotmail.com)

  DSP-2 emulator code
  (c) Copyright 2003         John Weidman,
                             Kris Bleakley,
                             Lord Nightmare (lord_nightmare@users.sourceforge.net),
                             Matthew Kendora,
                             neviksti


  DSP-3 emulator code
  (c) Copyright 2003 - 2006  John Weidman,
                             Kris Bleakley,
                             Lancer,
                             z80 gaiden

  DSP-4 emulator code
  (c) Copyright 2004 - 2006  Dreamer Nom,
                             John Weidman,
                             Kris Bleakley,
                             Nach,
                             z80 gaiden

  OBC1 emulator code
  (c) Copyright 2001 - 2004  zsKnight,
                             pagefault (pagefault@zsnes.com),
                             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,
                             Dark Force

  S-DD1 C emulator code
  (c) Copyright 2003         Brad Jorsch with research by
                             Andreas Naive,
                             John Weidman

  S-RTC C emulator code
  (c) Copyright 2001-2006    byuu,
                             John Weidman

  ST010 C++ emulator code
  (c) Copyright 2003         Feather,
                             John Weidman,
                             Kris Bleakley,
                             Matthew Kendora

  Super FX x86 assembler emulator code
  (c) Copyright 1998 - 2003  _Demo_,
                             pagefault,
                             zsKnight,

  Super FX C emulator code
  (c) Copyright 1997 - 1999  Ivar,
                             Gary Henderson,
                             John Weidman

  Sound DSP emulator code is derived from SNEeSe and OpenSPC:
  (c) Copyright 1998 - 2003  Brad Martin
  (c) Copyright 1998 - 2006  Charles Bilyue'

  SH assembler code partly based on x86 assembler code
  (c) Copyright 2002 - 2004  Marcus Comstedt (marcus@mc.pp.se)

  2xSaI filter
  (c) Copyright 1999 - 2001  Derek Liauw Kie Fa

  HQ2x, HQ3x, HQ4x filters
  (c) Copyright 2003         Maxim Stepin (maxim@hiend3d.com)

  Win32 GUI code
  (c) Copyright 2003 - 2006  blip,
                             funkyass,
                             Matthew Kendora,
                             Nach,
                             nitsuja

  Mac OS GUI code
  (c) Copyright 1998 - 2001  John Stiles
  (c) Copyright 2001 - 2007  zones


  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/or 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 or it's derivatives.

  Snes9x is freeware for PERSONAL USE only. Commercial users should
  seek permission of the copyright holders first. Commercial use includes,
  but is not limited to, charging money for Snes9x or software derived from
  Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
  using Snes9x as a promotion for your commercial product.

  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 _CPUMACRO_H_
#define _CPUMACRO_H_

#define rOP8(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        uint8 val = OpenBus = S9xGetByte(ADDR(READ)); \
        FUNC(val); \
    }

#define rOP16(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        uint16 val = S9xGetWord(ADDR(READ), WRAP); \
        OpenBus = (uint8)(val>>8); \
        FUNC(val); \
    }

#define rOPC(OP, COND, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        if(Check##COND()){ \
            uint8 val = OpenBus = S9xGetByte(ADDR(READ)); \
            FUNC(val); \
        } else { \
            uint16 val = S9xGetWord(ADDR(READ), WRAP); \
            OpenBus = (uint8)(val>>8); \
            FUNC(val); \
        } \
    }

#define rOPM(OP, ADDR, WRAP, FUNC) \
    rOPC(OP, Memory, ADDR, WRAP, FUNC)

#define rOPX(OP, ADDR, WRAP, FUNC) \
    rOPC(OP, Index, ADDR, WRAP, FUNC)


#define wOP8(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        FUNC##8 (ADDR(WRITE)); \
    }

#define wOP16(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        FUNC##16 (ADDR(WRITE), WRAP); \
    }

#define wOPC(OP, COND, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        if(Check##COND()){ \
            FUNC##8 (ADDR(WRITE)); \
        } else { \
            FUNC##16 (ADDR(WRITE), WRAP); \
        } \
    }

#define wOPM(OP, ADDR, WRAP, FUNC) \
    wOPC(OP, Memory, ADDR, WRAP, FUNC)

#define wOPX(OP, ADDR, WRAP, FUNC) \
    wOPC(OP, Index, ADDR, WRAP, FUNC)


#define mOP8(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        FUNC##8 (ADDR(MODIFY)); \
    }

#define mOP16(OP, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        FUNC##16 (ADDR(MODIFY), WRAP); \
    }

#define mOPC(OP, COND, ADDR, WRAP, FUNC) \
    static void Op##OP (void) { \
        if(Check##COND()){ \
            FUNC##8 (ADDR(MODIFY)); \
        } else { \
            FUNC##16 (ADDR(MODIFY), WRAP); \
        } \
    }

#define mOPM(OP, ADDR, WRAP, FUNC) \
    mOPC(OP, Memory, ADDR, WRAP, FUNC)


#define bOP(OP, REL, COND, CHK, E) \
    static void Op##OP (void) { \
        pair newPC; \
        newPC.W = REL(JUMP); \
        BranchCheck##CHK (); \
        if(COND){ \
            AddCycles(ONE_CYCLE); \
            if(E && Registers.PCh!=newPC.B.h){AddCycles(ONE_CYCLE);} \
            if((Registers.PCw&~MEMMAP_MASK)!=(newPC.W&~MEMMAP_MASK)){ \
                S9xSetPCBase(ICPU.ShiftedPB + newPC.W); \
            } else { \
                Registers.PCw = newPC.W; \
            } \
            CPUShutdown (); \
        } \
    }


STATIC inline void SetZN (uint16 Work) {
    ICPU._Zero = Work != 0;
    ICPU._Negative = (uint8) (Work >> 8);
}

STATIC inline void SetZN (uint8 Work) {
    ICPU._Zero = Work;
    ICPU._Negative = Work;
}

STATIC inline void ADC (uint8 Work8) {
    if(CheckDecimal()) {
	uint8  A1 = Registers.A.W & 0x0F;
	uint16 A2 = Registers.A.W & 0xF0;
	uint8  W1 = Work8 & 0x0F;
	uint8  W2 = Work8 & 0xF0;

	A1 += W1+CheckCarry();
	if(A1>0x09){
	    A1-=0x0A;
	    A1&=0x0F;
	    A2+=0x10;
	}

	A2 += W2;
	if(A2>0x90){
	    A2-=0xA0;
	    A2&=0xF0;
	    SetCarry();
	} else {
	    ClearCarry();
	}

	uint8 Ans8 = A2|A1;
	if (~(Registers.AL ^ Work8) &
	    (Work8 ^ Ans8) & 0x80)
	    SetOverflow();
	else
	    ClearOverflow();
	Registers.AL = Ans8;
	SetZN (Registers.AL);
    } else {
	uint16 Ans16 = Registers.AL + Work8 + CheckCarry();

	ICPU._Carry = Ans16 >= 0x100;

	if (~(Registers.AL ^ Work8) &
	     (Work8 ^ (uint8) Ans16) & 0x80)
	    SetOverflow();
	else
	    ClearOverflow();
	Registers.AL = (uint8) Ans16;
	SetZN (Registers.AL);
    }
}

STATIC inline void ADC (uint16 Work16) {
    if (CheckDecimal ()) {
	uint16 A1 = Registers.A.W & 0x000F;
	uint16 A2 = Registers.A.W & 0x00F0;
	uint16 A3 = Registers.A.W & 0x0F00;
	uint32 A4 = Registers.A.W & 0xF000;
	uint16 W1 = Work16 & 0x000F;
	uint16 W2 = Work16 & 0x00F0;
	uint16 W3 = Work16 & 0x0F00;
	uint16 W4 = Work16 & 0xF000;

	A1 += W1 + CheckCarry ();
	if(A1>0x0009) {
	    A1 -= 0x000A;
	    A1 &= 0x000F;
	    A2 += 0x0010;
	}

	A2 += W2;
	if(A2>0x0090){
	    A2 -= 0x00A0;
	    A2 &= 0x00F0;
	    A3 += 0x0100;
	}

	A3 += W3;
	if(A3>0x0900){
	    A3 -= 0x0A00;
	    A3 &= 0x0F00;
	    A4 += 0x1000;
	}

	A4 += W4;
	if(A4>0x9000){
	    A4 -= 0xA000;
	    A4 &= 0xF000;
	    SetCarry ();
	} else {
	    ClearCarry ();
	}

	uint16 Ans16 = A4|A3|A2|A1;
	if (~(Registers.A.W ^ Work16) &
	    (Work16 ^ Ans16) & 0x8000)
	    SetOverflow();
	else
	    ClearOverflow();
	Registers.A.W = Ans16;
	SetZN (Registers.A.W);
    } else {
	uint32 Ans32 = Registers.A.W + Work16 + CheckCarry();

	ICPU._Carry = Ans32 >= 0x10000;

	if (~(Registers.A.W ^ Work16) &
	    (Work16 ^ (uint16) Ans32) & 0x8000)
	    SetOverflow();
	else
	    ClearOverflow();
	Registers.A.W = (uint16) Ans32;
	SetZN (Registers.A.W);
    }
}

STATIC inline void AND (uint16 Work16) {
    Registers.A.W &= Work16;
    SetZN (Registers.A.W);
}

STATIC inline void AND (uint8 Work8) {
    Registers.AL &= Work8;
    SetZN (Registers.AL);
}

STATIC inline void ASL16 (uint32 OpAddress, s9xwrap_t w) {
    uint16 Work16 = S9xGetWord (OpAddress, w);
    ICPU._Carry = (Work16 & 0x8000) != 0;
    Work16 <<= 1;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = (Work16&0xff);
    SetZN (Work16);
}

STATIC inline void ASL8 (uint32 OpAddress) {
    uint8 Work8 = S9xGetByte (OpAddress);
    ICPU._Carry = (Work8 & 0x80) != 0;
    Work8 <<= 1;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
    SetZN (Work8);
}

STATIC inline void BIT (uint16 Work16) {
    ICPU._Overflow = (Work16 & 0x4000) != 0;
    ICPU._Negative = (uint8) (Work16 >> 8);
    ICPU._Zero = (Work16 & Registers.A.W) != 0;
}

STATIC inline void BIT (uint8 Work8) {
    ICPU._Overflow = (Work8 & 0x40) != 0;
    ICPU._Negative = Work8;
    ICPU._Zero = Work8 & Registers.AL;
}

STATIC inline void CMP (uint16 val) {
    int32 Int32 = (int32) Registers.A.W - (int32) val;
    ICPU._Carry = Int32 >= 0;
    SetZN ((uint16) Int32);
}

STATIC inline void CMP (uint8 val) {
    int16 Int16 = (int16) Registers.AL - (int16) val;
    ICPU._Carry = Int16 >= 0;
    SetZN ((uint8) Int16);
}

STATIC inline void CPX (uint16 val) {
    int32 Int32 = (int32) Registers.X.W - (int32) val;
    ICPU._Carry = Int32 >= 0;
    SetZN ((uint16) Int32);
}

STATIC inline void CPX (uint8 val) {
    int16 Int16 = (int16) Registers.XL - (int16) val;
    ICPU._Carry = Int16 >= 0;
    SetZN ((uint8) Int16);
}

STATIC inline void CPY (uint16 val) {
    int32 Int32 = (int32) Registers.Y.W - (int32) val;
    ICPU._Carry = Int32 >= 0;
    SetZN ((uint16) Int32);
}

STATIC inline void CPY (uint8 val) {
    int16 Int16 = (int16) Registers.YL - (int16) val;
    ICPU._Carry = Int16 >= 0;
    SetZN ((uint8) Int16);
}

STATIC inline void DEC16 (uint32 OpAddress, s9xwrap_t w) {
#ifdef CPU_SHUTDOWN
    CPU.WaitAddress = 0xffffffff;
#endif

    uint16 Work16 = S9xGetWord(OpAddress, w) - 1;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = Work16&0xff;
    SetZN (Work16);
}

STATIC inline void DEC8 (uint32 OpAddress) {
#ifdef CPU_SHUTDOWN
    CPU.WaitAddress = 0xffffffff;
#endif

    uint8 Work8 = S9xGetByte (OpAddress) - 1;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
    SetZN (Work8);
}

STATIC inline void EOR (uint16 val) {
    Registers.A.W ^= val;
    SetZN (Registers.A.W);
}

STATIC inline void EOR (uint8 val) {
    Registers.AL ^= val;
    SetZN (Registers.AL);
}

STATIC inline void INC16 (uint32 OpAddress, s9xwrap_t w) {
#ifdef CPU_SHUTDOWN
    CPU.WaitAddress = 0xffffffff;
#endif

    uint16 Work16 = S9xGetWord(OpAddress, w) + 1;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = Work16&0xff;
    SetZN (Work16);
}

STATIC inline void INC8 (uint32 OpAddress) {
#ifdef CPU_SHUTDOWN
    CPU.WaitAddress = 0xffffffff;
#endif

    uint8 Work8 = S9xGetByte (OpAddress) + 1;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
    SetZN (Work8);
}

STATIC inline void LDA (uint16 val) {
    Registers.A.W = val;
    SetZN (Registers.A.W);
}

STATIC inline void LDA (uint8 val) {
    Registers.AL = val;
    SetZN (Registers.AL);
}

STATIC inline void LDX (uint16 val) {
    Registers.X.W = val;
    SetZN (Registers.X.W);
}

STATIC inline void LDX (uint8 val) {
    Registers.XL = val;
    SetZN (Registers.XL);
}

STATIC inline void LDY (uint16 val) {
    Registers.Y.W = val;
    SetZN (Registers.Y.W);
}

STATIC inline void LDY (uint8 val) {
    Registers.YL = val;
    SetZN (Registers.YL);
}

STATIC inline void LSR16 (uint32 OpAddress, s9xwrap_t w) {
    uint16 Work16 = S9xGetWord (OpAddress, w);
    ICPU._Carry = Work16 & 1;
    Work16 >>= 1;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = (Work16&0xff);
    SetZN (Work16);
}

STATIC inline void LSR8 (uint32 OpAddress) {
    uint8 Work8 = S9xGetByte (OpAddress);
    ICPU._Carry = Work8 & 1;
    Work8 >>= 1;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
    SetZN (Work8);
}

STATIC inline void ORA (uint16 val) {
    Registers.A.W |= val;
    SetZN (Registers.A.W);
}

STATIC inline void ORA (uint8 val) {
    Registers.AL |= val;
    SetZN (Registers.AL);
}

STATIC inline void ROL16 (uint32 OpAddress, s9xwrap_t w) {
    uint32 Work32 = (((uint32)S9xGetWord(OpAddress, w))<<1) | CheckCarry();
    ICPU._Carry = Work32>=0x10000;
    AddCycles(ONE_CYCLE);
    S9xSetWord ((uint16)Work32, OpAddress, w, WRITE_10);
    OpenBus = (Work32&0xff);
    SetZN ((uint16)Work32);
}

STATIC inline void ROL8 (uint32 OpAddress) {
    uint16 Work16 = (((uint16)S9xGetByte(OpAddress))<<1) | CheckCarry();
    ICPU._Carry = Work16>=0x100;
    AddCycles(ONE_CYCLE);
    S9xSetByte ((uint8)Work16, OpAddress);
    OpenBus = Work16&0xff;
    SetZN ((uint8)Work16);
}

STATIC inline void ROR16 (uint32 OpAddress, s9xwrap_t w) {
    uint32 Work32 = ((uint32)S9xGetWord(OpAddress, w)) | (((uint32)CheckCarry())<<16);
    ICPU._Carry = Work32&1;
    Work32 >>= 1;
    AddCycles(ONE_CYCLE);
    S9xSetWord ((uint16)Work32, OpAddress, w, WRITE_10);
    OpenBus = (Work32&0xff);
    SetZN ((uint16)Work32);
}

STATIC inline void ROR8 (uint32 OpAddress) {
    uint16 Work16 = ((uint16)S9xGetByte(OpAddress)) | (((uint16)CheckCarry())<<8);
    ICPU._Carry = Work16&1;
    Work16 >>= 1;
    AddCycles(ONE_CYCLE);
    S9xSetByte ((uint8)Work16, OpAddress);
    OpenBus = Work16&0xff;
    SetZN ((uint8)Work16);
}

STATIC inline void SBC (uint16 Work16) {
    if (CheckDecimal ()) {
	uint16 A1 = Registers.A.W & 0x000F;
	uint16 A2 = Registers.A.W & 0x00F0;
	uint16 A3 = Registers.A.W & 0x0F00;
	uint32 A4 = Registers.A.W & 0xF000;
	uint16 W1 = Work16 & 0x000F;
	uint16 W2 = Work16 & 0x00F0;
	uint16 W3 = Work16 & 0x0F00;
	uint16 W4 = Work16 & 0xF000;

	A1 -= W1 + !CheckCarry ();
	A2 -= W2;
	A3 -= W3;
	A4 -= W4;
	if (A1 > 0x000F) {
	    A1 += 0x000A;
            A1 &= 0x000F;
	    A2 -= 0x0010;
	}
	if (A2 > 0x00F0) {
	    A2 += 0x00A0;
            A2 &= 0x00F0;
	    A3 -= 0x0100;
	}
	if (A3 > 0x0F00) {
	    A3 += 0x0A00;
            A3 &= 0x0F00;
	    A4 -= 0x1000;
	}
	if (A4 > 0xF000) {
	    A4 += 0xA000;
            A4 &= 0xF000;
	    ClearCarry ();
	} else {
	    SetCarry ();
	}

	uint16 Ans16 = A4|A3|A2|A1;
	if ((Registers.A.W ^ Work16) &
	    (Registers.A.W ^ Ans16) & 0x8000)
	    SetOverflow();
	else
	    ClearOverflow();
	Registers.A.W = Ans16;
	SetZN (Registers.A.W);
    } else {
	int32 Int32 = (int32) Registers.A.W - (int32) Work16 + (int32) CheckCarry() - 1;

	ICPU._Carry = Int32 >= 0;

	if ((Registers.A.W ^ Work16) &
	    (Registers.A.W ^ (uint16) Int32) & 0x8000)
	    SetOverflow();
	else
	    ClearOverflow ();
	Registers.A.W = (uint16) Int32;
	SetZN (Registers.A.W);
    }
}

STATIC inline void SBC (uint8 Work8) {
    if (CheckDecimal ()) {
	uint8  A1 = Registers.A.W & 0x0F;
	uint16 A2 = Registers.A.W & 0xF0;
	uint8  W1 = Work8 & 0x0F;
	uint8  W2 = Work8 & 0xF0;

	A1 -= W1 + !CheckCarry ();
	A2 -= W2;
	if (A1 > 0x0F) {
	    A1 += 0x0A;
	    A1 &= 0x0F;
	    A2 -= 0x10;
	}
	if (A2 > 0xF0) {
	    A2 += 0xA0;
	    A2 &= 0xF0;
	    ClearCarry ();
	} else {
	    SetCarry ();
	}

	uint8 Ans8 = A2|A1;
	if ((Registers.AL ^ Work8) &
	    (Registers.AL ^ Ans8) & 0x80)
	    SetOverflow ();
	else
	    ClearOverflow ();
	Registers.AL = Ans8;
	SetZN (Registers.AL);
    } else {
	int16 Int16 = (int16) Registers.AL - (int16) Work8 + (int16) CheckCarry() - 1;

	ICPU._Carry = Int16 >= 0;
	if ((Registers.AL ^ Work8) &
	    (Registers.AL ^ (uint8) Int16) & 0x80)
	    SetOverflow ();
	else
	    ClearOverflow ();
	Registers.AL = (uint8) Int16;
	SetZN (Registers.AL);
    }
}

STATIC inline void STA16 (uint32 OpAddress, enum s9xwrap_t w) {
    S9xSetWord (Registers.A.W, OpAddress, w);
    OpenBus = Registers.AH;
}

STATIC inline void STA8 (uint32 OpAddress) {
    S9xSetByte (Registers.AL, OpAddress);
    OpenBus = Registers.AL;
}

STATIC inline void STX16 (uint32 OpAddress, enum s9xwrap_t w) {
    S9xSetWord (Registers.X.W, OpAddress, w);
    OpenBus = Registers.XH;
}

STATIC inline void STX8 (uint32 OpAddress) {
    S9xSetByte (Registers.XL, OpAddress);
    OpenBus = Registers.XL;
}

STATIC inline void STY16 (uint32 OpAddress, enum s9xwrap_t w) {
    S9xSetWord (Registers.Y.W, OpAddress, w);
    OpenBus = Registers.YH;
}

STATIC inline void STY8 (uint32 OpAddress) {
    S9xSetByte (Registers.YL, OpAddress);
    OpenBus = Registers.YL;
}

STATIC inline void STZ16 (uint32 OpAddress, enum s9xwrap_t w) {
    S9xSetWord (0, OpAddress, w);
    OpenBus = 0;
}

STATIC inline void STZ8 (uint32 OpAddress) {
    S9xSetByte (0, OpAddress);
    OpenBus = 0;
}

STATIC inline void TSB16 (uint32 OpAddress, enum s9xwrap_t w) {
    uint16 Work16 = S9xGetWord (OpAddress, w);
    ICPU._Zero = (Work16 & Registers.A.W) != 0;
    Work16 |= Registers.A.W;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = Work16&0xff;
}

STATIC inline void TSB8 (uint32 OpAddress) {
    uint8 Work8 = S9xGetByte (OpAddress);
    ICPU._Zero = Work8 & Registers.AL;
    Work8 |= Registers.AL;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
}

STATIC inline void TRB16 (uint32 OpAddress, enum s9xwrap_t w) {
    uint16 Work16 = S9xGetWord (OpAddress, w);
    ICPU._Zero = (Work16 & Registers.A.W) != 0;
    Work16 &= ~Registers.A.W;
    AddCycles(ONE_CYCLE);
    S9xSetWord (Work16, OpAddress, w, WRITE_10);
    OpenBus = Work16&0xff;
}

STATIC inline void TRB8 (uint32 OpAddress) {
    uint8 Work8 = S9xGetByte (OpAddress);
    ICPU._Zero = Work8 & Registers.AL;
    Work8 &= ~Registers.AL;
    AddCycles(ONE_CYCLE);
    S9xSetByte (Work8, OpAddress);
    OpenBus = Work8;
}
#endif