// license:BSD-3-Clause // copyright-holders:smf #ifndef MAME_CPU_PSX_PSXDEFS_H #define MAME_CPU_PSX_PSXDEFS_H #pragma once #define PSXCPU_BYTE_EXTEND( a ) ( (int32_t)(int8_t)a ) #define PSXCPU_WORD_EXTEND( a ) ( (int32_t)(int16_t)a ) #define INS_OP( op ) ( ( op >> 26 ) & 63 ) #define INS_RS( op ) ( ( op >> 21 ) & 31 ) #define INS_RT( op ) ( ( op >> 16 ) & 31 ) #define INS_IMMEDIATE( op ) ( op & 0xffff ) #define INS_TARGET( op ) ( op & 0x3ffffff ) #define INS_RD( op ) ( ( op >> 11 ) & 31 ) #define INS_SHAMT( op ) ( ( op >> 6 ) & 31 ) #define INS_FUNCT( op ) ( op & 63 ) #define INS_CODE( op ) ( ( op >> 6 ) & 0xfffff ) #define INS_CO( op ) ( ( op >> 25 ) & 1 ) #define INS_COFUN( op ) ( op & 0x1ffffff ) #define INS_CF( op ) ( op & 31 ) #define INS_BC( op ) ( ( op >> 16 ) & 1 ) #define INS_RT_REGIMM( op ) ( ( op >> 16 ) & 1 ) #define OP_SPECIAL ( 0 ) #define OP_REGIMM ( 1 ) #define OP_J ( 2 ) #define OP_JAL ( 3 ) #define OP_BEQ ( 4 ) #define OP_BNE ( 5 ) #define OP_BLEZ ( 6 ) #define OP_BGTZ ( 7 ) #define OP_ADDI ( 8 ) #define OP_ADDIU ( 9 ) #define OP_SLTI ( 10 ) #define OP_SLTIU ( 11 ) #define OP_ANDI ( 12 ) #define OP_ORI ( 13 ) #define OP_XORI ( 14 ) #define OP_LUI ( 15 ) #define OP_COP0 ( 16 ) #define OP_COP1 ( 17 ) #define OP_COP2 ( 18 ) #define OP_COP3 ( 19 ) #define OP_LB ( 32 ) #define OP_LH ( 33 ) #define OP_LWL ( 34 ) #define OP_LW ( 35 ) #define OP_LBU ( 36 ) #define OP_LHU ( 37 ) #define OP_LWR ( 38 ) #define OP_SB ( 40 ) #define OP_SH ( 41 ) #define OP_SWL ( 42 ) #define OP_SW ( 43 ) #define OP_SWR ( 46 ) #define OP_LWC0 ( 48 ) #define OP_LWC1 ( 49 ) #define OP_LWC2 ( 50 ) #define OP_LWC3 ( 51 ) #define OP_SWC0 ( 56 ) #define OP_SWC1 ( 57 ) #define OP_SWC2 ( 58 ) #define OP_SWC3 ( 59 ) /* OP_SPECIAL */ #define FUNCT_SLL ( 0 ) #define FUNCT_SRL ( 2 ) #define FUNCT_SRA ( 3 ) #define FUNCT_SLLV ( 4 ) #define FUNCT_SRLV ( 6 ) #define FUNCT_SRAV ( 7 ) #define FUNCT_JR ( 8 ) #define FUNCT_JALR ( 9 ) #define FUNCT_SYSCALL ( 12 ) #define FUNCT_BREAK ( 13 ) #define FUNCT_MFHI ( 16 ) #define FUNCT_MTHI ( 17 ) #define FUNCT_MFLO ( 18 ) #define FUNCT_MTLO ( 19 ) #define FUNCT_MULT ( 24 ) #define FUNCT_MULTU ( 25 ) #define FUNCT_DIV ( 26 ) #define FUNCT_DIVU ( 27 ) #define FUNCT_ADD ( 32 ) #define FUNCT_ADDU ( 33 ) #define FUNCT_SUB ( 34 ) #define FUNCT_SUBU ( 35 ) #define FUNCT_AND ( 36 ) #define FUNCT_OR ( 37 ) #define FUNCT_XOR ( 38 ) #define FUNCT_NOR ( 39 ) #define FUNCT_SLT ( 42 ) #define FUNCT_SLTU ( 43 ) /* OP_REGIMM */ #define RT_BLTZ ( 0 ) #define RT_BGEZ ( 1 ) #define RT_BLTZAL ( 16 ) #define RT_BGEZAL ( 17 ) /* OP_COP0/OP_COP1/OP_COP2 */ #define RS_MFC ( 0 ) #define RS_CFC ( 2 ) #define RS_MTC ( 4 ) #define RS_CTC ( 6 ) #define RS_BC ( 8 ) #define RS_BC_ALT ( 12 ) /* BC_BC */ #define BC_BCF ( 0 ) #define BC_BCT ( 1 ) /* OP_COP0 */ #define CF_TLBR ( 1 ) #define CF_TLBWI ( 2 ) #define CF_TLBWR ( 6 ) #define CF_TLBP ( 8 ) #define CF_RFE ( 16 ) #endif // MAME_CPU_PSX_PSXDEFS_H