mirror of https://github.com/PCSX2/pcsx2.git
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
/* Pcsx2 - Pc Ps2 Emulator
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* Copyright (C) 2002-2003 Pcsx2 Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "Common.h"
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#include "InterTables.h"
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#include "ix86/ix86.h"
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#include "iR5900.h"
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#ifdef __WIN32__
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#pragma warning(disable:4244)
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#pragma warning(disable:4761)
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#endif
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/*********************************************************
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* Register mult/div & Register trap logic *
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* Format: OP rs, rt *
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*********************************************************/
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#ifndef MULTDIV_RECOMPILE
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REC_FUNC(MULT);
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REC_FUNC(MULTU);
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REC_FUNC(DIV);
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REC_FUNC(DIVU);
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#else
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////////////////////////////////////////////////////
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void recMULT( void )
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{
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MOV32MtoR( EAX, (u32)&cpuRegs.GPR.r[ _Rs_ ].UL[ 0 ] );
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IMUL32M( (u32)&cpuRegs.GPR.r[ _Rt_ ].UL[ 0 ] );
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MOV32RtoR( ECX, EDX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 1 ], EDX );
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if ( _Rd_ )
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{
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MOV32RtoM( (u32)&cpuRegs.GPR.r[ _Rd_ ].UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.GPR.r[ _Rd_ ].UL[ 1 ], EDX );
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}
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MOV32RtoR( EAX, ECX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 1 ], EDX );
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}
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////////////////////////////////////////////////////
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void recMULTU( void )
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{
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MOV32MtoR( EAX, (u32)&cpuRegs.GPR.r[ _Rs_ ].UL[ 0 ] );
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MUL32M( (u32)&cpuRegs.GPR.r[ _Rt_ ].UL[ 0 ] );
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MOV32RtoR( ECX, EDX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 1 ], EDX );
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if ( _Rd_ != 0 )
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{
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MOV32RtoM( (u32)&cpuRegs.GPR.r[ _Rd_ ].UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.GPR.r[ _Rd_ ].UL[ 1 ], EDX );
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}
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MOV32RtoR( EAX, ECX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 0 ], ECX );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 1 ], EDX );
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}
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////////////////////////////////////////////////////
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void recDIV( void )
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{
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MOV32MtoR( ECX, (u32)&cpuRegs.GPR.r[ _Rt_ ].UL[ 0 ] );
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OR32RtoR( ECX, ECX );
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j8Ptr[ 0 ] = JE8( 0 );
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MOV32MtoR( EAX, (u32)&cpuRegs.GPR.r[ _Rs_ ].UL[ 0 ] );
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// XOR32RtoR( EDX,EDX );
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CDQ();
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IDIV32R( ECX );
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MOV32RtoR( ECX, EDX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 1 ], EDX );
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MOV32RtoR( EAX, ECX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 0 ], ECX );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 1 ], EDX );
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x86SetJ8( j8Ptr[ 0 ] );
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}
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////////////////////////////////////////////////////
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void recDIVU( void )
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{
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MOV32MtoR( ECX, (u32)&cpuRegs.GPR.r[ _Rt_ ].UL[ 0 ] );
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OR32RtoR( ECX, ECX );
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j8Ptr[ 0 ] = JE8( 0 );
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MOV32MtoR( EAX, (u32)&cpuRegs.GPR.r[ _Rs_ ].UL[ 0 ] );
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XOR32RtoR( EDX, EDX );
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// CDQ();
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DIV32R( ECX );
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MOV32RtoR( ECX, EDX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 0 ], EAX );
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MOV32RtoM( (u32)&cpuRegs.LO.UL[ 1 ], EDX );
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MOV32RtoR( EAX,ECX );
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CDQ( );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 0 ], ECX );
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MOV32RtoM( (u32)&cpuRegs.HI.UL[ 1 ], EDX );
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x86SetJ8( j8Ptr[ 0 ] );
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}
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#endif
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