228 lines
5.5 KiB
C
228 lines
5.5 KiB
C
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/* Copyright (c) 2024 Freya Murphy */
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#ifndef __MIPS1_H__
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#define __MIPS1_H__
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#include <mlimits.h>
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#include <stdint.h>
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#include <mips.h>
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// TODO:
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// CFC1
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// CTC1
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// COP0-3
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// LWC1-3
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// SWC1-3
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/* mips instructions */
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enum mips1_instruction_type {
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MIPS1_INS_ADD,
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MIPS1_INS_ADDI,
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MIPS1_INS_ADDIU,
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MIPS1_INS_ADDU,
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MIPS1_INS_AND,
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MIPS1_INS_ANDI,
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MIPS1_INS_BC1F,
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MIPS1_INS_BC1T,
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MIPS1_INS_BEQ,
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MIPS1_INS_BGEZ,
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MIPS1_INS_BGEZAL,
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MIPS1_INS_BGTZ,
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MIPS1_INS_BLEZ,
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MIPS1_INS_BLTZAL,
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MIPS1_INS_BLTZ,
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MIPS1_INS_BNE,
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MIPS1_INS_BREAK,
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MIPS1_INS_CLO,
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MIPS1_INS_CLZ,
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MIPS1_INS_DIV,
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MIPS1_INS_DIVU,
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MIPS1_INS_ERET,
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MIPS1_INS_J,
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MIPS1_INS_JAL,
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MIPS1_INS_JALR,
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MIPS1_INS_JR,
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MIPS1_INS_LB,
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MIPS1_INS_LBU,
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MIPS1_INS_LH,
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MIPS1_INS_LHU,
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MIPS1_INS_LL,
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MIPS1_INS_LUI,
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MIPS1_INS_LW,
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MIPS1_INS_LWC1,
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MIPS1_INS_LWL,
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MIPS1_INS_LWR,
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MIPS1_INS_MADD,
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MIPS1_INS_MADDU,
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MIPS1_INS_MFC0,
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MIPS1_INS_MFC1,
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MIPS1_INS_MFHI,
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MIPS1_INS_MFLO,
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MIPS1_INS_MOVN,
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MIPS1_INS_MOVZ,
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MIPS1_INS_MSUB,
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MIPS1_INS_MSUBU,
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MIPS1_INS_MTC0,
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MIPS1_INS_MTC1,
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MIPS1_INS_MTHI,
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MIPS1_INS_MTLO,
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MIPS1_INS_MUL,
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MIPS1_INS_MULT,
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MIPS1_INS_MULTU,
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MIPS1_INS_NOR,
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MIPS1_INS_OR,
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MIPS1_INS_ORI,
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MIPS1_INS_SB,
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MIPS1_INS_SC,
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MIPS1_INS_SDC1,
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MIPS1_INS_SH,
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MIPS1_INS_SLL,
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MIPS1_INS_SLLV,
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MIPS1_INS_SLT,
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MIPS1_INS_SLTI,
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MIPS1_INS_SLTIU,
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MIPS1_INS_SLTU,
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MIPS1_INS_SRA,
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MIPS1_INS_SRAV,
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MIPS1_INS_SRL,
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MIPS1_INS_SRLV,
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MIPS1_INS_SUB,
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MIPS1_INS_SUBU,
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MIPS1_INS_SW,
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MIPS1_INS_SWC1,
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MIPS1_INS_SWL,
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MIPS1_INS_SWR,
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MIPS1_INS_SYSCALL,
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MIPS1_INS_TEQ,
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MIPS1_INS_TEQI,
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MIPS1_INS_TGE,
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MIPS1_INS_TGEI,
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MIPS1_INS_TGEIU,
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MIPS1_INS_TGEU,
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MIPS1_INS_TLT,
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MIPS1_INS_TLTI,
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MIPS1_INS_TLTIU,
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MIPS1_INS_TLTU,
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MIPS1_INS_TNE,
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MIPS1_INS_TNEI,
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MIPS1_INS_XOR,
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MIPS1_INS_XORI,
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__MIPS1_INS_NULL,
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};
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// op code groups
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#define MIPS1_OP_SPECIAL 0b000000
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#define MIPS1_OP_SPECIAL2 0b011100
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#define MIPS1_OP_REGIMM 0b000001
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#define MIPS1_OP_COP0 0b010000
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#define MIPS1_OP_COP1 0b010001
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// op codes
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#define MIPS1_OP_ADDI 0b001000
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#define MIPS1_OP_ADDIU 0b001001
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#define MIPS1_OP_ANDI 0b001100
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#define MIPS1_OP_BEQ 0b000100
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#define MIPS1_OP_BGTZ 0b000111
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#define MIPS1_OP_BLEZ 0b000110
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#define MIPS1_OP_BNE 0b000101
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#define MIPS1_OP_J 0b000010
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#define MIPS1_OP_JAL 0b000011
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#define MIPS1_OP_LB 0b100000
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#define MIPS1_OP_LBU 0b100100
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#define MIPS1_OP_LH 0b100001
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#define MIPS1_OP_LHU 0b100101
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#define MIPS1_OP_LL 0b110000
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#define MIPS1_OP_LUI 0b001111
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#define MIPS1_OP_LW 0b100011
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#define MIPS1_OP_LWC1 0b110001
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#define MIPS1_OP_LWL 0b100010
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#define MIPS1_OP_LWR 0b100110
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#define MIPS1_OP_ORI 0b001101
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#define MIPS1_OP_SB 0b101000
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#define MIPS1_OP_SC 0b111000
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#define MIPS1_OP_SDC1 0b111101
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#define MIPS1_OP_SH 0b101001
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#define MIPS1_OP_SLTI 0b001010
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#define MIPS1_OP_SLTIU 0b001011
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#define MIPS1_OP_SW 0b101011
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#define MIPS1_OP_SWC1 0b111001
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#define MIPS1_OP_SWL 0b101010
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#define MIPS1_OP_SWR 0b101110
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#define MIPS1_OP_XORI 0b001110
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// op special
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#define MIPS1_FUNCT_ADD 0b100000
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#define MIPS1_FUNCT_ADDU 0b100001
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#define MIPS1_FUNCT_AND 0b100100
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#define MIPS1_FUNCT_BREAK 0b001101
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#define MIPS1_FUNCT_DIV 0b011010
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#define MIPS1_FUNCT_DIVU 0b011011
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#define MIPS1_FUNCT_JALR 0b001001
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#define MIPS1_FUNCT_JR 0b001000
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#define MIPS1_FUNCT_MFHI 0b010000
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#define MIPS1_FUNCT_MFLO 0b010010
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#define MIPS1_FUNCT_MOVN 0b001011
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#define MIPS1_FUNCT_MOVZ 0b001010
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#define MIPS1_FUNCT_MTHI 0b010001
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#define MIPS1_FUNCT_MTLO 0b010011
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#define MIPS1_FUNCT_MULT 0b011000
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#define MIPS1_FUNCT_MULTU 0b011001
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#define MIPS1_FUNCT_NOR 0b100111
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#define MIPS1_FUNCT_OR 0b100101
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#define MIPS1_FUNCT_SLL 0b000000
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#define MIPS1_FUNCT_SLLV 0b000100
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#define MIPS1_FUNCT_SLT 0b101010
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#define MIPS1_FUNCT_SLTU 0b101011
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#define MIPS1_FUNCT_SRA 0b000011
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#define MIPS1_FUNCT_SRAV 0b000111
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#define MIPS1_FUNCT_SRL 0b000010
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#define MIPS1_FUNCT_SRLV 0b000110
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#define MIPS1_FUNCT_SUB 0b100010
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#define MIPS1_FUNCT_SUBU 0b100011
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#define MIPS1_FUNCT_SYSCALL 0b001100
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#define MIPS1_FUNCT_TEQ 0b110100
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#define MIPS1_FUNCT_TGE 0b110000
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#define MIPS1_FUNCT_TGEU 0b110001
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#define MIPS1_FUNCT_TLT 0b110010
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#define MIPS1_FUNCT_TLTU 0b110011
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#define MIPS1_FUNCT_TNE 0b110110
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#define MIPS1_FUNCT_XOR 0b100110
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// op special 2
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#define MIPS1_FUNCT_CLO 0b100001
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#define MIPS1_FUNCT_CLZ 0b100000
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#define MIPS1_FUNCT_MADD 0b000000
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#define MIPS1_FUNCT_MADDU 0b000001
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#define MIPS1_FUNCT_MSUB 0b000100
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#define MIPS1_FUNCT_MSUBU 0b000101
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#define MIPS1_FUNCT_MUL 0b100000
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// op regimm
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#define MIPS1_FUNCT_BGEZ 0b00001
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#define MIPS1_FUNCT_BGEZAL 0b10001
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#define MIPS1_FUNCT_BLTZ 0b00001
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#define MIPS1_FUNCT_BLTZAL 0b10000
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#define MIPS1_FUNCT_TEQI 0b01100
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#define MIPS1_FUNCT_TGEI 0b01000
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#define MIPS1_FUNCT_TGEIU 0b01001
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#define MIPS1_FUNCT_TLTI 0b01010
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#define MIPS1_FUNCT_TLTIU 0b01011
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#define MIPS1_FUNCT_TNEI 0b01110
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// op cop
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#define MIPS1_FUNCT_BC 0b01000
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#define MIPS1_FUNCT_MF 0b00000
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#define MIPS1_FUNCT_MT 0b00100
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// sub op c0
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#define MIPS1_FUNCT_ERET 0b011000
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#define __MIPS1_INS_LEN (__MIPS1_INS_NULL)
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#define __MIPS1_PSEUDO_LEN (34)
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#define __MIPS1_GRAMMER_LEN (__MIPS1_INS_LEN + __MIPS1_PSEUDO_LEN)
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extern struct mips32_grammer mips1_grammers[__MIPS1_GRAMMER_LEN];
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extern union mips32_instruction mips1_instructions[__MIPS1_INS_LEN];
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#endif /* __MIPS1_H__ */
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