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INLINE UINT8 ADD8( UINT8 arg1, UINT8 arg2 ) {
UINT32 res = arg1 + arg2;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ^ 0x80 ) & ( arg2 ^ res ) & 0x80 ) ? FLAG_O : 0 )
| ( ( res & 0xFF00 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT16 ADD16( UINT16 arg1, UINT16 arg2 ) {
UINT32 res = arg1 + arg2;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x8000 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ^ 0x8000 ) & ( arg2 ^ res ) & 0x8000 ) ? FLAG_O : 0 )
| ( ( res & 0xFF0000 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFFFF;
}
INLINE UINT8 ADDC8( UINT8 arg1, UINT8 arg2 ) {
UINT32 res = arg1 + arg2 + ( ( regs.F & FLAG_C ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ^ 0x80 ) & ( arg2 ^ res ) & 0x80 ) ? FLAG_O : 0 )
| ( ( res & 0xFF00 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT16 ADDC16( UINT16 arg1, UINT16 arg2 ) {
UINT32 res = arg1 + arg2 + ( ( regs.F & FLAG_C ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x8000 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ^ 0x8000 ) & ( arg2 ^ res ) & 0x8000 ) ? FLAG_O : 0 )
| ( ( res & 0xFF0000 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFFFF;
}
INLINE UINT8 INC8( UINT8 arg ) {
return ADD8( arg, 1 );
}
INLINE UINT16 INC16( UINT16 arg ) {
return ADD16( arg, 1 );
}
INLINE UINT8 SUB8( UINT8 arg1, UINT8 arg2 ) {
UINT32 res = arg1 - arg2;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ) & ( arg1 ^ res ) & 0x80 ) ? FLAG_O : 0 )
| ( ( res & 0xFF00 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT16 SUB16( UINT16 arg1, UINT16 arg2 ) {
UINT32 res = arg1 - arg2;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x8000 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ) & ( arg1 ^ res ) & 0x8000 ) ? FLAG_O : 0 )
| ( ( res & 0xFF0000 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFFFF;
}
INLINE UINT8 SUBC8( UINT8 arg1, UINT8 arg2 ) {
UINT32 res = arg1 - arg2 - ( ( regs.F & FLAG_C ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ) & ( arg1 ^ res ) & 0x80 ) ? FLAG_O : 0 )
| ( ( res & 0xFF00 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT16 SUBC16( UINT16 arg1, UINT16 arg2 ) {
UINT32 res = arg1 - arg2 - ( ( regs.F & FLAG_C ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x8000 ) ? FLAG_S : 0 )
| ( ( ( arg2 ^ arg1 ) & ( arg1 ^ res ) & 0x8000 ) ? FLAG_O : 0 )
| ( ( res & 0xFF0000 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFFFF;
}
INLINE UINT8 DEC8( UINT8 arg ) {
return SUB8( arg, 1 );
}
INLINE UINT16 DEC16( UINT16 arg ) {
return SUB16( arg, 1 );
}
INLINE UINT8 AND8( UINT8 arg1, UINT8 arg2 ) {
UINT8 res = arg1 & arg2;
return res;
}
INLINE UINT8 OR8( UINT8 arg1, UINT8 arg2 ) {
UINT8 res = arg1 | arg2;
return res;
}
INLINE UINT8 XOR8( UINT8 arg1, UINT8 arg2 ) {
UINT8 res = arg1 ^ arg2;
return res;
}
INLINE UINT8 NOT8( UINT8 arg ) {
UINT8 res = ~arg;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res;
}
INLINE UINT8 NEG8( UINT8 arg ) {
UINT8 res = -arg;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res;
}
INLINE UINT8 SAL8( UINT8 arg ) {
UINT16 res = arg << 1;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg != 0 && res == 0 ) ? FLAG_O : 0 )
| ( ( arg & 0x80 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res;
}
INLINE UINT8 SAR8( UINT8 arg ) {
UINT16 res = ( arg >> 1 ) | ( arg & 0x80 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_O | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg != 0x80 && res == 0x80 ) ? FLAG_O : 0 )
| ( ( arg & 0x01 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT8 SHL8( UINT8 arg ) {
UINT16 res = arg << 1;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x80 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res;
}
INLINE UINT8 SHR8( UINT8 arg ) {
UINT16 res = arg >> 1;
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x01 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT8 ROLC8( UINT8 arg ) {
UINT16 res = ( arg << 1 ) | ( ( regs.F & FLAG_C ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x80 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT8 RORC8( UINT8 arg ) {
UINT16 res = ( arg >> 1 ) | ( ( regs.F & FLAG_C ) ? 0x80 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x01 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT8 ROL8( UINT8 arg ) {
UINT16 res = ( arg << 1 ) | ( ( arg & 0x80 ) ? 1 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x80 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE UINT8 ROR8( UINT8 arg ) {
UINT16 res = ( arg >> 1 ) | ( ( arg & 0x01 ) ? 0x80 : 0 );
regs.F = ( regs.F & ~ ( FLAG_S | FLAG_C | FLAG_Z ) )
| ( ( res & 0x80 ) ? FLAG_S : 0 )
| ( ( arg & 0x01 ) ? FLAG_C : 0 )
| ( ( res ) ? 0 : FLAG_Z )
;
return res & 0xFF;
}
INLINE void PUSH8( UINT8 arg ) {
regs.SP = regs.SP - 1;
wr( regs.SP, arg );
}
INLINE void PUSH16( UINT16 arg ) {
PUSH8( arg >> 8 );
PUSH8( arg & 0x00FF );
}
INLINE UINT8 POP8( void ) {
UINT8 res = rd( regs.SP );
regs.SP = regs.SP + 1;
return res;
}
INLINE UINT16 POP16( void ) {
return POP8() | ( POP8() << 8 );
}
INLINE void JMP( UINT16 arg ) {
regs.V = regs.U;
regs.PC = arg;
}
INLINE void CALL( UINT16 arg ) {
PUSH8( regs.V );
PUSH16( regs.PC );
JMP( arg );
}
static UINT32 addr1, addr2;
#define AD1_IHL addr1 = ( regs.I << 16 ) | regs.HL;
#define AD1_IN8 addr1 = ( regs.I << 16 ) | ( regs.N << 8 ) | rdop();
#define AD1_I16 addr1 = ( regs.I << 16 ) | rdop(); addr1 |= ( rdop() << 8 );
#define AD1_XIX addr1 = ( regs.XI << 16 ) | regs.X;
#define AD1_YIY addr1 = ( regs.YI << 16 ) | regs.Y;
#define AD1_X8 addr1 = ( regs.XI << 16 ) | ( regs.X + rdop() );
#define AD1_Y8 addr1 = ( regs.YI << 16 ) | ( regs.Y + rdop() );
#define AD1_XL addr1 = ( regs.XI << 16 ) | ( regs.X + ( regs.HL & 0x00FF ) );
#define AD1_YL addr1 = ( regs.YI << 16 ) | ( regs.Y + ( regs.HL & 0x00FF ) );
#define AD2_IHL addr2 = ( regs.I << 16 ) | regs.HL;
#define AD2_IN8 addr2 = ( regs.I << 16 ) | ( regs.N << 8 ) | rdop();
#define AD2_I16 addr2 = ( regs.I << 16 ) | rdop(); addr2 |= ( rdop() << 8 );
#define AD2_XIX addr2 = ( regs.XI << 16 ) | regs.X;
#define AD2_YIY addr2 = ( regs.YI << 16 ) | regs.Y;
#define AD2_X8 addr2 = ( regs.XI << 16 ) | ( regs.X + rdop() );
#define AD2_Y8 addr2 = ( regs.YI << 16 ) | ( regs.Y + rdop() );
#define AD2_XL addr2 = ( regs.XI << 16 ) | ( regs.X + ( regs.HL & 0x00FF ) );
#define AD2_YL addr2 = ( regs.YI << 16 ) | ( regs.Y + ( regs.HL & 0x00FF ) );
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