#pragma once #if defined(__arm__) || defined(_M_ARM) #pragma warning(push) #pragma warning(disable : 4201) // warning C4201: nonstandard extension used : nameless struct/union union ArmThumbOpcode { uint16_t Hex; uint8_t Ascii[2]; struct { unsigned reserved : 3; unsigned rm : 4; unsigned opcode : 9; } Branch; struct { unsigned imm : 11; unsigned opcode : 5; } BranchImm; struct { unsigned imm : 8; unsigned cond : 4; unsigned opcode : 4; } BranchImmCond; struct { unsigned rt : 3; unsigned rn : 3; unsigned rm : 3; unsigned opcode : 7; } Reg; struct { unsigned rd : 3; unsigned rn : 3; unsigned imm3 : 3; unsigned opcode : 7; } Imm3; struct { unsigned rt : 3; unsigned rn : 3; unsigned imm5 : 5; unsigned opcode : 5; } Imm5; struct { unsigned imm8 : 8; unsigned rdn : 3; unsigned opcode : 5; } Imm8; struct { unsigned rn : 3; unsigned rm : 3; unsigned opcode : 10; } Reg2; struct { unsigned register_list : 8; unsigned m : 1; unsigned opcode : 7; } Push; struct { unsigned register_list : 8; unsigned p : 1; unsigned opcode : 7; } Pop; struct { unsigned mask : 4; unsigned firstcond : 4; unsigned opcode : 8; } It; }; union Arm32Opcode { uint32_t Hex; uint8_t Ascii[4]; // uint16 + uint16 type instruction struct { unsigned rn : 4; unsigned opcode : 12; unsigned rm : 4; unsigned imm2 : 2; unsigned reserved : 6; unsigned rt : 4; } uint16; struct { unsigned Rn : 4; unsigned s : 1; unsigned opcode : 5; unsigned i : 1; unsigned opcode2 : 5; unsigned imm8 : 8; unsigned rd : 4; unsigned imm3 : 3; unsigned reserved : 1; } RnRdImm12; struct { unsigned Rn : 4; unsigned op3 : 2; unsigned D : 1; unsigned U : 1; unsigned op2 : 8; unsigned imm8 : 8; unsigned op1 : 4; unsigned vd : 4; } RnVdImm8; struct { unsigned vn : 4; unsigned op1 : 2; unsigned d : 1; unsigned op2 : 9; unsigned vm : 4; unsigned op3 : 1; unsigned m : 1; unsigned op4 : 1; unsigned n : 1; unsigned sz : 1; unsigned op5 : 3; unsigned vd : 4; } VnVmVd; struct { unsigned rn : 4; unsigned opcode : 12; unsigned rm : 4; unsigned imm : 2; unsigned Opcode2 : 6; unsigned rt : 4; } imm2; struct { unsigned rn : 4; unsigned s : 1; unsigned opcode : 11; unsigned rm : 4; unsigned type : 2; unsigned imm2 : 2; unsigned rd : 4; unsigned imm3 : 3; unsigned opcode2 : 1; } imm5; struct { unsigned rn : 4; unsigned opcode : 12; unsigned imm : 12; unsigned rt : 4; } imm12; struct { unsigned rn : 4; unsigned s : 1; unsigned opcode : 5; unsigned i : 1; unsigned opcode2 : 5; unsigned imm8 : 8; unsigned rd : 4; unsigned imm3 : 3; unsigned opcode3 : 1; } imm8_3_1; struct { unsigned imm4 : 4; unsigned opcode2 : 6; unsigned i : 1; unsigned opcode : 5; unsigned imm8 : 8; unsigned rd : 4; unsigned imm3 : 3; unsigned reserved : 1; } imm16; struct { unsigned imm6 : 6; unsigned cond : 4; unsigned S : 1; unsigned Opcode : 5; unsigned imm11 : 11; unsigned J2 : 1; unsigned val12 : 1; unsigned J1 : 1; unsigned val14 : 2; } Branch20; struct { unsigned rm : 4; unsigned opcode2 : 8; unsigned rt : 4; unsigned rn : 4; unsigned opcode : 12; } uint32; struct { unsigned rm : 4; unsigned opcode3 : 8; unsigned rt : 4; unsigned rn : 4; unsigned opcode2 : 1; unsigned w : 1; unsigned opcode1 : 1; unsigned u : 1; unsigned p : 1; unsigned opcode : 3; unsigned cond : 4; } reg_cond; struct { unsigned rm : 4; unsigned opcode3 : 1; unsigned type : 2; unsigned imm5 : 5; unsigned rt : 4; unsigned rn : 4; unsigned opcode2 : 1; unsigned w : 1; unsigned opcode1 : 1; unsigned u : 1; unsigned p : 1; unsigned opcode : 3; unsigned cond : 4; } reg_cond_imm5; struct { unsigned imm4l : 4; unsigned opcode3 : 4; unsigned imm4h : 4; unsigned rt : 4; unsigned rn : 4; unsigned opcode2 : 1; unsigned w : 1; unsigned opcode1 : 1; unsigned u : 1; unsigned p : 1; unsigned opcode : 3; unsigned cond : 4; } reg_cond_imm8; struct { unsigned imm12 : 12; unsigned rt : 4; unsigned rn : 4; unsigned opcode2 : 1; unsigned w : 1; unsigned opcode1 : 1; unsigned u : 1; unsigned p : 1; unsigned opcode : 3; unsigned cond : 4; } reg_cond_imm12; struct { unsigned opcode : 16; unsigned opcode2 : 12; unsigned rt : 4; } fpscr; struct { unsigned opcode : 16; unsigned rm : 4; unsigned rotate : 2; unsigned opcode2 : 2; unsigned rd : 4; unsigned opcode3 : 4; } rotate; struct { unsigned opcode : 16; unsigned register_list : 16; } PushPop; }; #pragma warning(pop) enum ArmThumbOpCodes { ArmSTR_ThumbImm = 0xC, ArmSTR_Reg = 40, ArmLDR_ThumbImm = 0xD, ArmLDR_Reg = 44, ArmLDRH_Reg = 0xE19, ArmLDRH_W = 0xF83, ArmMOV_IMM16 = 0x1E, ArmMOVW_IMM16 = 0x24, ArmMOVT_IMM16 = 0x2C, ArmPUSH = 0x5A, ArmPOP = 0x5E, }; #endif