diff options
Diffstat (limited to '')
| -rw-r--r-- | include/melf.h | 2 | ||||
| -rw-r--r-- | include/merror.h | 4 | ||||
| -rw-r--r-- | include/mips.h | 467 | ||||
| -rw-r--r-- | include/mips32.h | 142 | ||||
| -rw-r--r-- | include/mips32r6.h | 158 |
5 files changed, 303 insertions, 470 deletions
diff --git a/include/melf.h b/include/melf.h index 095518b..e7311cd 100644 --- a/include/melf.h +++ b/include/melf.h @@ -32,7 +32,7 @@ static const Elf32_Ehdr MIPS_ELF_EHDR = .e_machine = B16(EM_MIPS), .e_version = B32(EV_CURRENT), .e_entry = 0x00, - .e_flags = B32(EF_MIPS_ARCH_32R6), + .e_flags = 0x00, // B32(EF_MIPS_ARCH_32R6), .e_ehsize = B16(sizeof(Elf32_Ehdr)), .e_phentsize = B16(sizeof(Elf32_Phdr)), .e_shentsize = B16(sizeof(Elf32_Shdr)), diff --git a/include/merror.h b/include/merror.h index de47ed8..4b32159 100644 --- a/include/merror.h +++ b/include/merror.h @@ -8,8 +8,8 @@ /* Error codes */ #define M_SUCCESS 0 -#define M_EOF 1 -#define M_ERROR -1 +#define M_ERROR 1 +#define M_EOF 2 #define __DEBUG 1 #define __WARNING 2 diff --git a/include/mips.h b/include/mips.h deleted file mode 100644 index 9a1b204..0000000 --- a/include/mips.h +++ /dev/null @@ -1,467 +0,0 @@ -/* Copyright (c) 2024 Freya Murphy */ - -#ifndef __MIPS_H__ -#define __MIPS_H__ - -#include <mlimits.h> -#include <stdint.h> - -/* all mips registers $0-$31 */ -enum mips_register { - MIPS_REG_ZERO = 0, - MIPS_REG_AT = 1, - MIPS_REG_V0 = 2, - MIPS_REG_V1 = 3, - MIPS_REG_A0 = 4, - MIPS_REG_A1 = 5, - MIPS_REG_A2 = 6, - MIPS_REG_A3 = 7, - MIPS_REG_T0 = 8, - MIPS_REG_T1 = 9, - MIPS_REG_T2 = 10, - MIPS_REG_T3 = 11, - MIPS_REG_T4 = 12, - MIPS_REG_T5 = 13, - MIPS_REG_T6 = 14, - MIPS_REG_T7 = 15, - MIPS_REG_S0 = 16, - MIPS_REG_S1 = 17, - MIPS_REG_S2 = 18, - MIPS_REG_S3 = 19, - MIPS_REG_S4 = 20, - MIPS_REG_S5 = 21, - MIPS_REG_S6 = 22, - MIPS_REG_S7 = 23, - MIPS_REG_T8 = 24, - MIPS_REG_T9 = 25, - MIPS_REG_K0 = 26, - MIPS_REG_K1 = 27, - MIPS_REG_GP = 28, - MIPS_REG_SP = 29, - MIPS_REG_FP = 30, - MIPS_REG_RA = 31, -}; - -/* mips instructions */ -enum mips_instruction_type { - MIPS_INS_ADD, - MIPS_INS_ADDI, - MIPS_INS_ADDIU, - MIPS_INS_ADDU, - MIPS_INS_AND, - MIPS_INS_ANDI, - MIPS_INS_BAL, - MIPS_INS_BALC, - MIPS_INS_BC, - MIPS_INS_BEQ, - MIPS_INS_BEQL, - MIPS_INS_BGEZ, - MIPS_INS_BGEZAL, - MIPS_INS_BGEZALL, - MIPS_INS_BGEZL, - MIPS_INS_BGTZ, - MIPS_INS_BGTZL, - MIPS_INS_BLEZ, - MIPS_INS_BLEZL, - MIPS_INS_BLTZ, - MIPS_INS_BLTZAL, - MIPS_INS_BLTZALL, - MIPS_INS_BLTZL, - MIPS_INS_BNE, - MIPS_INS_BNEL, - MIPS_INS_DIV, - MIPS_INS_MOD, - MIPS_INS_DIVU, - MIPS_INS_MODU, - MIPS_INS_J, - MIPS_INS_JAL, - MIPS_INS_JALR, - MIPS_INS_JALX, - MIPS_INS_JR, - MIPS_INS_LB, - MIPS_INS_LBU, - MIPS_INS_LH, - MIPS_INS_LHU, - MIPS_INS_LUI, - MIPS_INS_LW, - MIPS_INS_MFHI, - MIPS_INS_MFLO, - MIPS_INS_MTHI, - MIPS_INS_MTLO, - MIPS_INS_MUL, - MIPS_INS_MUH, - MIPS_INS_MULU, - MIPS_INS_MUHU, - MIPS_INS_SB, - MIPS_INS_SH, - MIPS_INS_SW, - MIPS_INS_SLL, - MIPS_INS_SLLV, - MIPS_INS_SLT, - MIPS_INS_SLTI, - MIPS_INS_SLTIU, - MIPS_INS_SLTU, - MIPS_INS_SRA, - MIPS_INS_SRAV, - MIPS_INS_SRL, - MIPS_INS_SRLV, - MIPS_INS_SUB, - MIPS_INS_SUBU, - MIPS_INS_SYSCALL, - MIPS_INS_OR, - MIPS_INS_ORI, - MIPS_INS_NOR, - MIPS_INS_XOR, - MIPS_INS_XORI, - // gets the size of the enum - __MIPS_INS_LEN, -}; - -union mips_instruction_data { - /* raw ins */ - uint32_t raw : 32; - /* register type */ - struct { - uint32_t funct : 6; - uint32_t shamt : 5; - uint32_t rd : 5; - uint32_t rt : 5; - uint32_t rs : 5; - uint32_t op : 6; - }; - /* immediate type */ - struct { - uint32_t immd : 16; - uint32_t : 16; - }; - /* jump type */ - struct { - uint32_t target : 26; - uint32_t : 6; - }; - /* branch compact */ - struct { - int32_t offs26 : 26; - uint32_t : 6; - }; - /* branch */ - struct { - int32_t offset : 16; - uint32_t bfunct : 5; - uint32_t : 11; - }; -} __attribute__((packed)); - -/* mips instruction information */ -struct mips_instruction { - // metadata - enum mips_instruction_type type; - const char *name; - - // data - union mips_instruction_data data; -}; - -#define MIPS_INS(ins, ...) \ - [MIPS_INS_ ##ins] = { \ - MIPS_INS_ ##ins, \ - #ins, \ - .data = { __VA_ARGS__ } \ - }, \ - -static const struct mips_instruction mips_instructions[] = { -/* ADD - add */ -#define MIPS_OP_SPECIAL 0b000000 -#define MIPS_FUNCT_ADD 0b100000 -MIPS_INS(ADD, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_ADD) - -/* ADDI - add immediate */ -#define MIPS_OP_ADDI 0b001000 -MIPS_INS(ADDI, .op = MIPS_OP_ADDI) - -/* ADDIU - add immediate unsigned */ -#define MIPS_OP_ADDIU 0b001001 -MIPS_INS(ADDIU, .op = MIPS_OP_ADDIU) - -/* ADDU - add unsigned */ -#define MIPS_FUNCT_ADDU 0b100001 -MIPS_INS(ADDU, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_ADDU) - -/* AND - and */ -#define MIPS_FUNCT_AND 0b100100 -MIPS_INS(AND, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_AND) - -/* ANDI - and immediate */ -#define MIPS_OP_ANDI 0b001100 -MIPS_INS(ANDI, .op = MIPS_OP_ANDI) - -/* BAL - branch and link */ -#define MIPS_OP_REGIMM 0b000001 -#define MIPS_FUNCT_BAL 0b10001 -MIPS_INS(BAL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BAL) - -/* BALC - branch and link, compact */ -#define MIPS_OP_BALC 0b111010 -MIPS_INS(BALC, .op = MIPS_OP_BALC) - -/* BC - branch, compact */ -#define MIPS_OP_BC 0b110010 -MIPS_INS(BC, .op = MIPS_OP_BC) - -/* BEQ - branch on equal */ -#define MIPS_OP_BEQ 0b000100 -MIPS_INS(BEQ, .op = MIPS_OP_BEQ) - -/* BEQL - branch on equal likely */ -#define MIPS_OP_BEQL 0b010100 -MIPS_INS(BEQL, .op = MIPS_OP_BEQL) - -/* BGEZ - branch on greater than or equal to zero */ -#define MIPS_FUNCT_BGEZ 0b00001 -MIPS_INS(BGEZ, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BGEZ) - -/* BGEZAL - branch on greater than or equal to zero and link */ -#define MIPS_FUNCT_BGEZAL 0b10001 -MIPS_INS(BGEZAL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BGEZAL) - -/* BGEZAL - branch on greater than or equal to zero and link likely */ -#define MIPS_FUNCT_BGEZALL 0b10011 -MIPS_INS(BGEZALL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BGEZALL) - -/* BGEZL - branch on greater than or equal to zero likely */ -#define MIPS_FUNCT_BGEZL 0b00011 -MIPS_INS(BGEZL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BGEZL) - -/* BGTZ - branch on greater than zero */ -#define MIPS_OP_BGTZ 0b000111 -MIPS_INS(BGTZ, .op = MIPS_OP_BGTZ) - -/* BGTZL - branch on greater than zero likely */ -#define MIPS_OP_BGTZL 0b010111 -MIPS_INS(BGTZL, .op = MIPS_OP_BGTZL) - -/* BLEZ - branch on less than or equal to zero */ -#define MIPS_OP_BLEZ 0b000110 -MIPS_INS(BLEZ, .op = MIPS_OP_BLEZ) - -/* BLEZL - branch on less than or equal to zero likely */ -#define MIPS_OP_BLEZL 0b010110 -MIPS_INS(BLEZL, .op = MIPS_OP_BLEZL) - -/* BLTZ - branch on less than zero */ -#define MIPS_FUNCT_BLTZ 0b00000 -MIPS_INS(BLTZ, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BLTZ) - -/* BLTZAL - branch on less than zero and link */ -#define MIPS_FUNCT_BLTZAL 0b10000 -MIPS_INS(BLTZAL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BLTZAL) - -/* BLTZALL - branch on less than zero and link likely */ -#define MIPS_FUNCT_BLTZALL 0b10010 -MIPS_INS(BLTZALL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BLTZALL) - -/* BLTZL - branch on less than zero likely */ -#define MIPS_FUNCT_BLTZL 0b00010 -MIPS_INS(BLTZL, .op = MIPS_OP_REGIMM, .bfunct = MIPS_FUNCT_BLTZL) - -/* BNE - branch on not equal */ -#define MIPS_OP_BNE 0b000101 -MIPS_INS(BNE, .op = MIPS_OP_BNE) - -/* BNEL - branch on not equal likely */ -#define MIPS_OP_BNEL 0b010101 -MIPS_INS(BNEL, .op = MIPS_OP_BNEL) - -/* DIV - divide */ -#define MIPS_FUNCT_SOP32 0b011010 -#define MIPS_SOP32_DIV 0b00010 -MIPS_INS(DIV, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP32_DIV, - .funct = MIPS_FUNCT_SOP32) - -/* MOD - modulo */ -#define MIPS_SOP32_MOD 0b00011 -MIPS_INS(MOD, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP32_MOD, - .funct = MIPS_FUNCT_SOP32) - -/* DIVU - divide unsigned */ -#define MIPS_FUNCT_SOP33 0b011011 -#define MIPS_SOP33_DIVU 0b00010 -MIPS_INS(DIVU, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP33_DIVU, - .funct = MIPS_FUNCT_SOP33) - -/* MODU - modulo unsigned */ -#define MIPS_SOP33_MODU 0b00011 -MIPS_INS(MODU, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP33_MODU, - .funct = MIPS_FUNCT_SOP33) - -/* J - jump */ -#define MIPS_OP_J 0b000010 -MIPS_INS(J, .op = MIPS_OP_J) - -/* JAL - jump and link */ -#define MIPS_OP_JAL 0b000011 -MIPS_INS(JAL, .op = MIPS_OP_JAL) - -/* JALR - jump and link register */ -#define MIPS_FUNCT_JALR 0b001001 -MIPS_INS(JALR, .rd = MIPS_REG_RA, .op = MIPS_OP_SPECIAL, - .funct = MIPS_FUNCT_JALR) - -/* JALX - jump and link exchange */ -#define MIPS_OP_JALX 0b011101 -MIPS_INS(JALX, .op = MIPS_OP_JALX) - -/* JR - jump register */ -#define MIPS_FUNCT_JR 0b001000 -MIPS_INS(JR, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_JR) - -/* LB - load byte */ -#define MIPS_OP_LB 0b100000 -MIPS_INS(LB, .op = MIPS_OP_LB) - -/* LBU - load byte unsigned */ -#define MIPS_OP_LBU 0b100100 -MIPS_INS(LBU, .op = MIPS_OP_LBU) - -/* LH - load half */ -#define MIPS_OP_LH 0b100001 -MIPS_INS(LH, .op = MIPS_OP_LH) - -/* LHU - load half unsigned */ -#define MIPS_OP_LHU 0b100101 -MIPS_INS(LHU, .op = MIPS_OP_LHU) - -/* LUI - load upper immediate */ -#define MIPS_OP_LUI 0b001111 -MIPS_INS(LUI, .op = MIPS_OP_LUI) - -/* LW - load word */ -#define MIPS_OP_LW 0b100011 -MIPS_INS(LW, .op = MIPS_OP_LW) - -/* MFHI - move from hi */ -#define MIPS_FUNCT_MFHI 0b010000 -MIPS_INS(MFHI, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_MFHI) - -/* MFLO - move from hi */ -#define MIPS_FUNCT_MFLO 0b010010 -MIPS_INS(MFLO, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_MFLO) - -/* MTHI - move from hi */ -#define MIPS_FUNCT_MTHI 0b010001 -MIPS_INS(MTHI, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_MTHI) - -/* MTLO - move from hi */ -#define MIPS_FUNCT_MTLO 0b010011 -MIPS_INS(MTLO, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_MTLO) - -/* MUL - multiply low word */ -#define MIPS_FUNCT_SOP30 0b011000 -#define MIPS_SOP30_MUL 0b00010 -MIPS_INS(MUL, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP30_MUL, - .funct = MIPS_FUNCT_SOP30) - -/* MUH - multiply high word */ -#define MIPS_SOP30_MUH 0b00011 -MIPS_INS(MUH, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP30_MUH, - .funct = MIPS_FUNCT_SOP30) - -/* MULU - multiply low word unsigned */ -#define MIPS_FUNCT_SOP31 0b011001 -#define MIPS_SOP31_MULU 0b00010 -MIPS_INS(MULU, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP31_MULU, - .funct = MIPS_FUNCT_SOP31) - -/* MUHU - multiply high word unsgined */ -#define MIPS_SOP31_MUHU 0b00011 -MIPS_INS(MUHU, .op = MIPS_OP_SPECIAL, .shamt = MIPS_SOP31_MUHU, - .funct = MIPS_FUNCT_SOP31) - -/* SB - store byte */ -#define MIPS_OP_SB 0b101000 -MIPS_INS(SB, .op = MIPS_OP_SB) - -/* SH - store half */ -#define MIPS_OP_SH 0b101001 -MIPS_INS(SH, .op = MIPS_OP_SH) - -/* SW - store word */ -#define MIPS_OP_SW 0b101011 -MIPS_INS(SW, .op = MIPS_OP_SW) - -/* SLL - shift left logical */ -#define MIPS_FUNCT_SLL 0b000000 -MIPS_INS(SLL, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SLL) - -/* SLLV - shift left logical variable */ -#define MIPS_FUNCT_SLLV 0b000100 -MIPS_INS(SLLV, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SLLV) - -/* SLT - set less then */ -#define MIPS_FUNCT_SLT 0b101010 -MIPS_INS(SLT, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SLT) - -/* SLTI - set less then immediate */ -#define MIPS_OP_SLTI 0b001010 -MIPS_INS(SLTI, .op = MIPS_OP_SLTI) - -/* SLTIU - set less then imemdiate unsigned */ -#define MIPS_OP_SLTIU 0b001011 -MIPS_INS(SLTIU, .op = MIPS_OP_SLTIU) - -/* SLTU - set less than unsigned */ -#define MIPS_FUNCT_SLTU 0b101011 -MIPS_INS(SLTU, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SLTU) - -/* SRA - shift right arithmetic */ -#define MIPS_FUNCT_SRA 0b000011 -MIPS_INS(SRA, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SRA) - -/* SRAV - shift right arithmetic variable */ -#define MIPS_FUNCT_SRAV 0b000111 -MIPS_INS(SRAV, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SRAV) - -/* SRL - shift right logical */ -#define MIPS_FUNCT_SRL 0b000010 -MIPS_INS(SRL, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SRL) - -/* SRLV - shift right logical variable */ -#define MIPS_FUNCT_SRLV 0b000110 -MIPS_INS(SRLV, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SRLV) - -/* SUB - subtract */ -#define MIPS_FUNCT_SUB 0b100010 -MIPS_INS(SUB, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SUB) - -/* SUBU - subtract unsigned */ -#define MIPS_FUNCT_SUBU 0b100011 -MIPS_INS(SUBU, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SUBU) - -/* SYSCALL - syscall */ -#define MIPS_FUNCT_SYSCALL 0b001100 -MIPS_INS(SYSCALL, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_SYSCALL) - -/* OR - or */ -#define MIPS_FUNCT_OR 0b100101 -MIPS_INS(OR, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_OR) - -/* ORI - or imemdiate */ -#define MIPS_OP_ORI 0b001101 -MIPS_INS(ORI, .op = MIPS_OP_ORI) - -/* NOR - not or */ -#define MIPS_FUNCT_NOR 0b100111 -MIPS_INS(NOR, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_NOR) - -/* XOR - exclusive or */ -#define MIPS_FUNCT_XOR 0b100110 -MIPS_INS(XOR, .op = MIPS_OP_SPECIAL, .funct = MIPS_FUNCT_XOR) - -/* XORI - exclusive or immediate */ -#define MIPS_OP_XORI 0b001110 -MIPS_INS(XORI, .op = MIPS_OP_XORI) -}; - -#undef MIPS_INS - -#endif /* __MIPS_H__ */ diff --git a/include/mips32.h b/include/mips32.h new file mode 100644 index 0000000..e2b86b7 --- /dev/null +++ b/include/mips32.h @@ -0,0 +1,142 @@ +/* Copyright (c) 2024 Freya Murphy */ + +#ifndef __MIPS32_H__ +#define __MIPS32_H__ + +#include <stddef.h> +#include <stdint.h> +#include <mlimits.h> + +/* all mips registers $0-$31 */ +enum mips32_register { + MIPS32_REG_ZERO = 0, + MIPS32_REG_AT = 1, + MIPS32_REG_V0 = 2, + MIPS32_REG_V1 = 3, + MIPS32_REG_A0 = 4, + MIPS32_REG_A1 = 5, + MIPS32_REG_A2 = 6, + MIPS32_REG_A3 = 7, + MIPS32_REG_T0 = 8, + MIPS32_REG_T1 = 9, + MIPS32_REG_T2 = 10, + MIPS32_REG_T3 = 11, + MIPS32_REG_T4 = 12, + MIPS32_REG_T5 = 13, + MIPS32_REG_T6 = 14, + MIPS32_REG_T7 = 15, + MIPS32_REG_S0 = 16, + MIPS32_REG_S1 = 17, + MIPS32_REG_S2 = 18, + MIPS32_REG_S3 = 19, + MIPS32_REG_S4 = 20, + MIPS32_REG_S5 = 21, + MIPS32_REG_S6 = 22, + MIPS32_REG_S7 = 23, + MIPS32_REG_T8 = 24, + MIPS32_REG_T9 = 25, + MIPS32_REG_K0 = 26, + MIPS32_REG_K1 = 27, + MIPS32_REG_GP = 28, + MIPS32_REG_SP = 29, + MIPS32_REG_FP = 30, + MIPS32_REG_RA = 31, +}; + +/* mips instruction */ +union mips32_instruction { + /* raw ins */ + uint32_t raw : 32; + /* register type */ + struct { + uint32_t funct : 6; + uint32_t shamt : 5; + uint32_t rd : 5; + uint32_t rt : 5; + uint32_t rs : 5; + uint32_t op : 6; + }; + /* immediate type */ + struct { + uint32_t immd : 16; + uint32_t : 16; + }; + /* jump type */ + struct { + uint32_t target : 26; + uint32_t : 6; + }; + /* branch compact */ + struct { + int32_t offs26 : 26; + uint32_t : 6; + }; + /* branch */ + struct { + int32_t offset : 16; + uint32_t bfunct : 5; + uint32_t : 11; + }; +} __attribute__((packed)); + +/// grammer syntax: +/// +/// ... the grammer takes entries parsed from the instruction, +/// and updates the instructions with values based on the type +/// of entry. i.e. immd would require a immd in the next argument, +/// and update the low 16bits of the instruction. +/// +/// GRAMMER -> ENTRIES +/// GRAMMER -> ε +/// ENTRIES -> ENTRIES, ENTRY +/// ENTRY -> rd // i.e. $at +/// ENTRY -> rs +/// ENTRY -> rt +/// ENTRY -> immd // i.e. 0x80 +/// ENTRY -> offset // i.e. main (16bits) +/// ENTRY -> offest(base) // i.e. 4($sp) +/// ENTRY -> target // i.e. main (28bits shifted) +/// +/// // grammer entries are always defined onto themselves... meaning the +/// // name of their type directly corresponds to the mips field in the +/// // instruction +/// +/// pseudo grammer syntax: +/// +/// ... psuedo entries represents what values should be placed where +/// in each of the pseudo instructions. psuedo grammer is extended such +/// that hardcoded values can be returned. i.e. setting rt=$at +/// +/// GRAMMER -> ENTRIES +/// GRAMMER -> ε +/// ENTREIS -> ENTRIES, ENTRYSET +/// ENTRYSET -> ENTRY | SET +/// SET -> ENTRY = <REGISTER> +/// ENTRY -> <GRAMMER: ENTRY> // i.e. any valid entry from grammer synax +/// ENTRY -> hi // high 16bits of <target> into <immd> +/// ENTRY -> lo // low 16bits of <target> into <immd> + +/* mips grammer */ +struct mips32_grammer { + // the name of the ins + char *name; + // the grammer of the ins + char *grammer; + // the index of the ins (if real) + int enum_index; + + // for pseudo instructions only + int pseudo_len; + struct mips32__pseudo_grammer { + // what instruction is this + // part in the pseudo instruction + int enum_index; + // what parts of the instruction + // to update with values from + // grammer + char *update; + + } pseudo_grammer[MAX_ARG_LENGTH]; +}; + +#endif /* __MIPS32_H__ */ diff --git a/include/mips32r6.h b/include/mips32r6.h new file mode 100644 index 0000000..c2aad2d --- /dev/null +++ b/include/mips32r6.h @@ -0,0 +1,158 @@ +/* Copyright (c) 2024 Freya Murphy */ + +#ifndef __MIPS32R6_H__ +#define __MIPS32R6_H__ + +#include <mlimits.h> +#include <stdint.h> +#include <mips32.h> + +/* mips instructions */ +enum mips32r6_instruction_type { + MIPS32R6_INS_ADD, + MIPS32R6_INS_ADDI, + MIPS32R6_INS_ADDIU, + MIPS32R6_INS_ADDU, + MIPS32R6_INS_AND, + MIPS32R6_INS_ANDI, + MIPS32R6_INS_BAL, + MIPS32R6_INS_BALC, + MIPS32R6_INS_BC, + MIPS32R6_INS_BEQ, + MIPS32R6_INS_BGEZ, + MIPS32R6_INS_BGEZAL, + MIPS32R6_INS_BGTZ, + MIPS32R6_INS_BLEZ, + MIPS32R6_INS_BLTZ, + MIPS32R6_INS_BLTZAL, + MIPS32R6_INS_BNE, + MIPS32R6_INS_DIV, + MIPS32R6_INS_MOD, + MIPS32R6_INS_DIVU, + MIPS32R6_INS_MODU, + MIPS32R6_INS_J, + MIPS32R6_INS_JAL, + MIPS32R6_INS_JALR, + MIPS32R6_INS_JALX, + MIPS32R6_INS_JR, + MIPS32R6_INS_LB, + MIPS32R6_INS_LBU, + MIPS32R6_INS_LH, + MIPS32R6_INS_LHU, + MIPS32R6_INS_LUI, + MIPS32R6_INS_LW, + MIPS32R6_INS_MUL, + MIPS32R6_INS_MUH, + MIPS32R6_INS_MULU, + MIPS32R6_INS_MUHU, + MIPS32R6_INS_SB, + MIPS32R6_INS_SH, + MIPS32R6_INS_SW, + MIPS32R6_INS_SLL, + MIPS32R6_INS_SLLV, + MIPS32R6_INS_SLT, + MIPS32R6_INS_SLTI, + MIPS32R6_INS_SLTIU, + MIPS32R6_INS_SLTU, + MIPS32R6_INS_SRA, + MIPS32R6_INS_SRAV, + MIPS32R6_INS_SRL, + MIPS32R6_INS_SRLV, + MIPS32R6_INS_SUB, + MIPS32R6_INS_SUBU, + MIPS32R6_INS_SYSCALL, + MIPS32R6_INS_OR, + MIPS32R6_INS_ORI, + MIPS32R6_INS_NOR, + MIPS32R6_INS_XOR, + MIPS32R6_INS_XORI, + __MIPS32R6_INS_NULL, +}; + +#define MIPS32R6_OP_SPECIAL 0b000000 +#define MIPS32R6_OP_ADDI 0b001000 +#define MIPS32R6_OP_ADDIU 0b001001 +#define MIPS32R6_OP_ANDI 0b001100 +#define MIPS32R6_OP_REGIMM 0b000001 +#define MIPS32R6_OP_BALC 0b111010 +#define MIPS32R6_OP_BC 0b110010 +#define MIPS32R6_OP_BEQ 0b000100 +#define MIPS32R6_OP_BEQL 0b010100 +#define MIPS32R6_OP_BGTZ 0b000111 +#define MIPS32R6_OP_BGTZL 0b010111 +#define MIPS32R6_OP_BLEZ 0b000110 +#define MIPS32R6_OP_BLEZL 0b010110 +#define MIPS32R6_OP_BNE 0b000101 +#define MIPS32R6_OP_BNEL 0b010101 +#define MIPS32R6_OP_J 0b000010 +#define MIPS32R6_OP_JAL 0b000011 +#define MIPS32R6_OP_JALX 0b011101 +#define MIPS32R6_OP_LB 0b100000 +#define MIPS32R6_OP_LBU 0b100100 +#define MIPS32R6_OP_LH 0b100001 +#define MIPS32R6_OP_LHU 0b100101 +#define MIPS32R6_OP_LUI 0b001111 +#define MIPS32R6_OP_LW 0b100011 +#define MIPS32R6_OP_SB 0b101000 +#define MIPS32R6_OP_SH 0b101001 +#define MIPS32R6_OP_SW 0b101011 +#define MIPS32R6_OP_SLTI 0b001010 +#define MIPS32R6_OP_SLTIU 0b001011 +#define MIPS32R6_OP_ORI 0b001101 +#define MIPS32R6_OP_XORI 0b001110 + +#define MIPS32R6_FUNCT_ADD 0b100000 +#define MIPS32R6_FUNCT_ADDU 0b100001 +#define MIPS32R6_FUNCT_AND 0b100100 +#define MIPS32R6_FUNCT_SOP32 0b011010 +#define MIPS32R6_FUNCT_SOP33 0b011011 +#define MIPS32R6_FUNCT_JALR 0b001001 +#define MIPS32R6_FUNCT_JR 0b001000 +#define MIPS32R6_FUNCT_MFHI 0b010000 +#define MIPS32R6_FUNCT_MFLO 0b010010 +#define MIPS32R6_FUNCT_MTHI 0b010001 +#define MIPS32R6_FUNCT_MTLO 0b010011 +#define MIPS32R6_FUNCT_SOP30 0b011000 +#define MIPS32R6_FUNCT_SOP31 0b011001 +#define MIPS32R6_FUNCT_SLL 0b000000 +#define MIPS32R6_FUNCT_SLLV 0b000100 +#define MIPS32R6_FUNCT_SLT 0b101010 +#define MIPS32R6_FUNCT_SLTU 0b101011 +#define MIPS32R6_FUNCT_SRA 0b000011 +#define MIPS32R6_FUNCT_SRAV 0b000111 +#define MIPS32R6_FUNCT_SRL 0b000010 +#define MIPS32R6_FUNCT_SRLV 0b000110 +#define MIPS32R6_FUNCT_SUB 0b100010 +#define MIPS32R6_FUNCT_SUBU 0b100011 +#define MIPS32R6_FUNCT_SYSCALL 0b001100 +#define MIPS32R6_FUNCT_OR 0b100101 +#define MIPS32R6_FUNCT_NOR 0b100111 +#define MIPS32R6_FUNCT_XOR 0b100110 + +#define MIPS32R6_FUNCT_BAL 0b10001 +#define MIPS32R6_FUNCT_BGEZ 0b00001 +#define MIPS32R6_FUNCT_BGEZAL 0b10001 +#define MIPS32R6_FUNCT_BGEZALL 0b10011 +#define MIPS32R6_FUNCT_BGEZL 0b00011 +#define MIPS32R6_FUNCT_BLTZ 0b00000 +#define MIPS32R6_FUNCT_BLTZAL 0b10000 +#define MIPS32R6_FUNCT_BLTZALL 0b10010 +#define MIPS32R6_FUNCT_BLTZL 0b00010 + +#define MIPS32R6_SOP30_MUL 0b00010 +#define MIPS32R6_SOP30_MUH 0b00011 +#define MIPS32R6_SOP31_MULU 0b00010 +#define MIPS32R6_SOP31_MUHU 0b00011 +#define MIPS32R6_SOP32_DIV 0b00010 +#define MIPS32R6_SOP32_MOD 0b00011 +#define MIPS32R6_SOP33_DIVU 0b00010 +#define MIPS32R6_SOP33_MODU 0b00011 + +#define __MIPS32R6_INS_LEN (__MIPS32R6_INS_NULL) +#define __MIPS32R6_PSEUDO_LEN (4) +#define __MIPS32R6_GRAMMER_LEN (__MIPS32R6_INS_LEN + __MIPS32R6_PSEUDO_LEN) + +extern struct mips32_grammer mips32r6_grammers[__MIPS32R6_GRAMMER_LEN]; +extern union mips32_instruction mips32r6_instructions[__MIPS32R6_INS_LEN]; + +#endif /* __MIPS32R6_H__ */ |