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R4300i.c
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R4300i.c
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/*$T R4300i.c GC 1.136 03/09/02 17:29:19 */
/*$6
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Interpretive integer opcode functions of the R4300i processor.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
*/
/*
* 1964 Copyright (C) 1999-2002 Joel Middendorf, <[email protected]> This
* program is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version. This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. To contact the
* authors: email: [email protected], [email protected]
*/
#include <windows.h>
#include "debug_option.h"
#include "r4300i.h"
#include "n64rcp.h"
#include "memory.h"
#include "1964ini.h"
#include "gamesave.h"
#include "timer.h"
#include "interrupt.h"
#include "win32/DLL_Video.h"
#include "win32/DLL_Audio.h"
#include "win32/windebug.h"
#include "win32/wingui.h"
#include "dma.h"
void SPECIAL_instr(uint32 Instruction);
void REGIMM_instr(uint32 Instruction);
void COP0_instr(uint32 Instruction);
void COP1_instr(uint32 Instruction);
void TLB_instr(uint32 Instruction);
void COP1_BC_instr(uint32 Instruction);
void COP1_S_instr(uint32 Instruction);
void COP1_D_instr(uint32 Instruction);
void COP1_W_instr(uint32 Instruction);
void COP1_L_instr(uint32 Instruction);
void (*CPU_instruction[64]) (uint32 Instruction) =
{
SPECIAL_instr, //0
REGIMM_instr, //1
r4300i_j, //2
r4300i_jal, //3
r4300i_beq, //4
r4300i_bne, //5
r4300i_blez, //6
r4300i_bgtz, //7
r4300i_addi, //8
r4300i_addiu, //9
r4300i_slti, //10
r4300i_sltiu, //11
r4300i_andi, //12
r4300i_ori, //13
r4300i_xori, //14
r4300i_lui, //15
COP0_instr, //16
COP1_instr, //17
UNUSED, //18
UNUSED, //19
r4300i_beql, //20
r4300i_bnel, //21
r4300i_blezl, //22
r4300i_bgtzl, //23
r4300i_daddi, //24
r4300i_daddiu, //25
r4300i_ldl, //26
r4300i_ldr, //27
UNUSED, //28
UNUSED, //29
UNUSED, //30
UNUSED, //31
r4300i_lb, //32
r4300i_lh, //33
r4300i_lwl, //34
r4300i_lw, //35
r4300i_lbu, //36
r4300i_lhu, //37
r4300i_lwr, //38
r4300i_lwu, //39
r4300i_sb, //40
r4300i_sh, //41
r4300i_swl, //42
r4300i_sw, //43
r4300i_sdl, //44
r4300i_sdr, //45
r4300i_swr, //46
r4300i_cache, //47
r4300i_ll, //48
r4300i_lwc1, //49
UNUSED, //50
UNUSED, //51
r4300i_lld, //52
r4300i_ldc1, //53
UNUSED, //54
r4300i_ld, //55
r4300i_sc, //56
r4300i_swc1, //57
UNUSED, //58
UNUSED, //59
r4300i_scd, //60
r4300i_sdc1, //61
UNUSED, //62
r4300i_sd //63
};
void (*SPECIAL_Instruction[64]) (uint32 Instruction) =
{
r4300i_sll, //0
UNUSED, //1
r4300i_srl, //2
r4300i_sra, //3
r4300i_sllv, //4
UNUSED, //5
r4300i_srlv, //6
r4300i_srav, //7
r4300i_jr, //8
r4300i_jalr, //9
UNUSED, //10
UNUSED, //11
r4300i_syscall, //12
r4300i_break, //13
UNUSED, //14
r4300i_sync, //15
r4300i_mfhi, //16
r4300i_mthi, //17
r4300i_mflo, //18
r4300i_mtlo, //19
r4300i_dsllv, //20
UNUSED, //21
r4300i_dsrlv, //22
r4300i_dsrav, //23
r4300i_mult, //24
r4300i_multu, //25
r4300i_div, //26
r4300i_divu, //27
r4300i_dmult, //28
r4300i_dmultu, //29
r4300i_ddiv, //30
r4300i_ddivu, //31
r4300i_add, //32
r4300i_addu, //33
r4300i_sub, //34
r4300i_subu, //35
r4300i_and, //36
r4300i_or, //37
r4300i_xor, //38
r4300i_nor, //39
UNUSED, //40
UNUSED, //41
r4300i_slt, //42
r4300i_sltu, //43
r4300i_dadd, //44
r4300i_daddu, //45
r4300i_dsub, //46
r4300i_dsubu, //47
r4300i_tge, //48
r4300i_tgeu, //49
r4300i_tlt, //50
r4300i_tltu, //51
r4300i_teq, //52
UNUSED, //53
r4300i_tne, //54
UNUSED, //55
r4300i_dsll, //56
UNUSED, //57
r4300i_dsrl, //58
r4300i_dsra, //59
r4300i_dsll32, //60
UNUSED, //61
r4300i_dsrl32, //62
r4300i_dsra32 //63
};
void (*REGIMM_Instruction[32]) (uint32 Instruction) =
{
r4300i_bltz,
r4300i_bgez,
r4300i_bltzl,
r4300i_bgezl,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_tgei,
r4300i_tgeiu,
r4300i_tlti,
r4300i_tltiu,
r4300i_teqi,
UNUSED,
r4300i_tnei,
UNUSED,
r4300i_bltzal,
r4300i_bgezal,
r4300i_bltzall,
r4300i_bgezall,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED
};
void (*COP0_Instruction[32]) (uint32 Instruction) =
{
r4300i_COP0_mfc0,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP0_mtc0,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
TLB_instr,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED
};
void (*TLB_Instruction[64]) (uint32 Instruction) =
{
UNUSED, //0
r4300i_COP0_tlbr, //1
r4300i_COP0_tlbwi, //2
UNUSED, //3
UNUSED, //4
UNUSED, //5
r4300i_COP0_tlbwr, //6
UNUSED, //7
r4300i_COP0_tlbp, //8
UNUSED, //9
UNUSED, //10
UNUSED, //11
UNUSED, //12
UNUSED, //13
UNUSED, //14
UNUSED, //15
UNUSED, //16
UNUSED, //17
UNUSED, //18
UNUSED, //19
UNUSED, //20
UNUSED, //21
UNUSED, //22
UNUSED, //23
r4300i_COP0_eret, //24
UNUSED, //25
UNUSED, //26
UNUSED, //27
UNUSED, //28
UNUSED, //29
UNUSED, //30
UNUSED, //31
UNUSED, //32
UNUSED, //33
UNUSED, //34
UNUSED, //35
UNUSED, //36
UNUSED, //37
UNUSED, //38
UNUSED, //39
UNUSED, //40
UNUSED, //41
UNUSED, //42
UNUSED, //43
UNUSED, //44
UNUSED, //45
UNUSED, //46
UNUSED, //47
UNUSED, //48
UNUSED, //49
UNUSED, //50
UNUSED, //51
UNUSED, //52
UNUSED, //53
UNUSED, //54
UNUSED, //55
UNUSED, //56
UNUSED, //57
UNUSED, //58
UNUSED, //59
UNUSED, //60
UNUSED, //61
UNUSED, //62
UNUSED //63
};
void (*COP1_Instruction[32]) (uint32 Instruction) =
{
r4300i_COP1_mfc1,
r4300i_COP1_dmfc1,
r4300i_COP1_cfc1,
UNUSED,
r4300i_COP1_mtc1,
r4300i_COP1_dmtc1,
r4300i_COP1_ctc1,
UNUSED,
COP1_BC_instr,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
COP1_S_instr,
COP1_D_instr,
UNUSED,
UNUSED,
COP1_W_instr,
COP1_L_instr,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED
};
void (*COP1_BC_Instruction[4]) (uint32 Instruction) =
{
r4300i_COP1_bc1f,
r4300i_COP1_bc1t,
r4300i_COP1_bc1fl,
r4300i_COP1_bc1tl
};
void (*COP1_S_Instruction[64]) (uint32 Instruction) =
{
r4300i_COP1_add_s,
r4300i_COP1_sub_s,
r4300i_COP1_mul_s,
r4300i_COP1_div_s,
r4300i_COP1_sqrt_s,
r4300i_COP1_abs_s,
r4300i_COP1_mov_s,
r4300i_COP1_neg_s,
r4300i_COP1_roundl_s,
r4300i_COP1_truncl_s,
r4300i_COP1_ceill_s,
r4300i_COP1_floorl_s,
r4300i_COP1_roundw_s,
r4300i_COP1_truncw_s,
r4300i_COP1_ceilw_s,
r4300i_COP1_floorw_s,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP1_cvtd_s,
UNUSED,
UNUSED,
r4300i_COP1_cvtw_s,
r4300i_COP1_cvtl_s,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_C_F_S,
r4300i_C_UN_S,
r4300i_C_EQ_S,
r4300i_C_UEQ_S,
r4300i_C_OLT_S,
r4300i_C_ULT_S,
r4300i_C_OLE_S,
r4300i_C_ULE_S,
r4300i_C_SF_S,
r4300i_C_NGLE_S,
r4300i_C_SEQ_S,
r4300i_C_NGL_S,
r4300i_C_LT_S,
r4300i_C_NGE_S,
r4300i_C_LE_S,
r4300i_C_NGT_S
};
void (*COP1_D_Instruction[64]) (uint32 Instruction) =
{
r4300i_COP1_add_d,
r4300i_COP1_sub_d,
r4300i_COP1_mul_d,
r4300i_COP1_div_d,
r4300i_COP1_sqrt_d,
r4300i_COP1_abs_d,
r4300i_COP1_mov_d,
r4300i_COP1_neg_d,
r4300i_COP1_roundl_d,
r4300i_COP1_truncl_d,
r4300i_COP1_ceill_d,
r4300i_COP1_floorl_d,
r4300i_COP1_roundw_d,
r4300i_COP1_truncw_d,
r4300i_COP1_ceilw_d,
r4300i_COP1_floorw_d,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP1_cvts_d,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP1_cvtw_d,
r4300i_COP1_cvtl_d,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_C_F_D,
r4300i_C_UN_D,
r4300i_C_EQ_D,
r4300i_C_UEQ_D,
r4300i_C_OLT_D,
r4300i_C_ULT_D,
r4300i_C_OLE_D,
r4300i_C_ULE_D,
r4300i_C_SF_D,
r4300i_C_NGLE_D,
r4300i_C_SEQ_D,
r4300i_C_NGL_D,
r4300i_C_LT_D,
r4300i_C_NGE_D,
r4300i_C_LE_D,
r4300i_C_NGT_D
};
void (*COP1_W_Instruction[64]) (uint32 Instruction) =
{
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP1_cvts_w,
r4300i_COP1_cvtd_w,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED
};
void (*COP1_L_Instruction[64]) (uint32 Instruction) =
{
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
r4300i_COP1_cvts_l,
r4300i_COP1_cvtd_l,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED,
UNUSED
};
/*
=======================================================================================================================
=======================================================================================================================
*/
void SPECIAL_instr(uint32 Instruction)
{
SPECIAL_Instruction[_FUNCTION_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void REGIMM_instr(uint32 Instruction)
{
REGIMM_Instruction[RT_FT](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP0_instr(uint32 Instruction)
{
COP0_Instruction[RS_BASE_FMT](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_instr(uint32 Instruction)
{
COP1_Instruction[RS_BASE_FMT](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void TLB_instr(uint32 Instruction)
{
TLB_Instruction[_FUNCTION_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_BC_instr(uint32 Instruction)
{
COP1_BC_Instruction[(_ND_ << 1) | _TF_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_S_instr(uint32 Instruction)
{
COP1_S_Instruction[_FUNCTION_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_D_instr(uint32 Instruction)
{
COP1_D_Instruction[_FUNCTION_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_W_instr(uint32 Instruction)
{
COP1_W_Instruction[_FUNCTION_](Instruction);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void COP1_L_instr(uint32 Instruction)
{
COP1_L_Instruction[_FUNCTION_](Instruction);
}
/*
* r4300i.c internal macro definition £
*/
#ifdef DEBUG_TLB
#define DISPLAY_ADDRESS_ERROR(addr, opcodestr) Display_Address_Error(addr, opcodestr);
#else
#define DISPLAY_ADDRESS_ERROR(addr, opcodestr)
#endif
/*
* r4300i.c internal functions £
*/
extern void DebugIO(uint32, char *, uint32);
__inline void Display_Address_Error(uint32 addr, char *opcode);
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_break(uint32 Instruction)
{
/* Trigger the BREAK Exception */
TRACE2("BREAK, PC=%08X, code=%08X", gHWS_pc, Instruction >> 6);
SET_EXCEPTION(EXC_BREAK);
HandleExceptions(0x80000180);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_sync(uint32 Instruction)
{
/*
* ifdef DEBUG_COMMON £
* DisplayError("Intruction SYNC, not implemented yet"); £
* #endif
*/
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_syscall(uint32 Instruction)
{
/* Cause a SYSCALL exception */
TRACE1("SYSCALL, PC=%08X", gHWS_pc);
/* DisplayError("SYSCALL, PC=%08X", gHWS_pc); */
SET_EXCEPTION(EXC_SYSCALL)
HandleExceptions(0x80000180);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void UNUSED(uint32 Instruction)
{
/*
* Trigger the RI Exception £
* SET_EXCEPTION(EXC_II) £
* HandleExceptions(0x80000180); £
* DisplayError("%08X: Illegal opcode request.", gHWS_pc);
*/
TRACE1("Invalid Instruction, PC=%08X", gHWS_pc);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_add(uint32 Instruction)
{
gRD = (_int64) ((_int32) gRS + (_int32) gRT);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_addu(uint32 Instruction)
{
gRD = (_int64) ((_int32) gRS + (_int32) gRT);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_addi(uint32 Instruction)
{
sLOGICAL_WITH_IMM(+);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_addiu(uint32 Instruction)
{
sLOGICAL_WITH_IMM(+);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_dadd(uint32 Instruction)
{
sDLOGICAL(+);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddu(uint32 Instruction)
{
sDLOGICAL(+);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddi(uint32 Instruction)
{
sDLOGICAL_WITH_IMM(+);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddiu(uint32 Instruction)
{
sDLOGICAL_WITH_IMM(+);
}
/*
=======================================================================================================================
32bit operands.
=======================================================================================================================
*/
void r4300i_dadd_32bit(uint32 Instruction)
{
gHWS_GPR[RD_FS] = (_int64) (_int32) gHWS_GPR[RS_BASE_FMT] + (_int64) (_int32) gHWS_GPR[RT_FT];
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddu_32bit(uint32 Instruction)
{
gHWS_GPR[RD_FS] = (_int64) (_int32) gHWS_GPR[RS_BASE_FMT] + (_int64) (_int32) gHWS_GPR[RT_FT];
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddi_32bit(uint32 Instruction)
{
gHWS_GPR[RT_FT] = (_int64) (_int32) gHWS_GPR[RS_BASE_FMT] + (_int64) (_int32) OFFSET_IMMEDIATE;
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_daddiu_32bit(uint32 Instruction)
{
gHWS_GPR[RT_FT] = (_int64) (_int32) gHWS_GPR[RS_BASE_FMT] + (_int64) (_int32) OFFSET_IMMEDIATE;
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_sub(uint32 Instruction)
{
sLOGICAL(-);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_subu(uint32 Instruction)
{
sLOGICAL(-);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_dsub(uint32 Instruction)
{
sDLOGICAL(-);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_dsubu(uint32 Instruction)
{
sDLOGICAL(-);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_and(uint32 Instruction)
{
uDLOGICAL(&);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_andi(uint32 Instruction)
{
uDLOGICAL_WITH_IMM(&);
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_or(uint32 Instruction)
{
uDLOGICAL( | );
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_ori(uint32 Instruction)
{
uDLOGICAL_WITH_IMM( | );
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_xor(uint32 Instruction)
{
uDLOGICAL( ^ );
}
/*
=======================================================================================================================
=======================================================================================================================
*/
void r4300i_xori(uint32 Instruction)
{
uDLOGICAL_WITH_IMM( ^ );
}