mirror of
https://github.com/SourMesen/Mesen-S.git
synced 2024-06-23 14:52:12 -04:00
182 lines
13 KiB
C++
182 lines
13 KiB
C++
#include"stdafx.h"
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#include"GameboyDisUtils.h"
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#include"Console.h"
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#include"DisassemblyInfo.h"
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#include"EmuSettings.h"
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#include"LabelManager.h"
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#include"../Utilities/FastString.h"
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#include"../Utilities/HexUtilities.h"
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constexpr const char* _opTemplate[256] = {
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"NOP", "LD BC, e", "LD (BC), A", "INC BC", "INC B", "DEC B", "LD B, d", "RLCA", "LD (a), SP", "ADD HL, BC", "LD A, (BC)", "DEC BC", "INC C", "DEC C", "LD C, d", "RRCA",
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"STOP", "LD DE, e", "LD (DE), A", "INC DE", "INC D", "DEC D", "LD D, d", "RLA", "JR r", "ADD HL, DE", "LD A, (DE)", "DEC DE", "INC E", "DEC E", "LD E, d", "RRA",
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"JR NZ, r", "LD HL, e", "LD (HL+), A", "INC HL", "INC H", "DEC H", "LD H, d", "DAA", "JR Z, r", "ADD HL, HL", "LD A, (HL+)", "DEC HL", "INC L", "DEC L", "LD L, d", "CPL",
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"JR NC, r", "LD SP, e", "LD (HL-), A", "INC SP", "INC (HL)", "DEC (HL)", "LD (HL), d", "SCF", "JR C, r", "ADD HL, SP", "LD A, (HL-)", "DEC SP", "INC A", "DEC A", "LD A, d", "CCF",
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"LD B, B", "LD B, C", "LD B, D", "LD B, E", "LD B, H", "LD B, L", "LD B, (HL)", "LD B, A", "LD C, B", "LD C, C", "LD C, D", "LD C, E", "LD C, H", "LD C, L", "LD C, (HL)", "LD C, A",
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"LD D, B", "LD D, C", "LD D, D", "LD D, E", "LD D, H", "LD D, L", "LD D, (HL)", "LD D, A", "LD E, B", "LD E, C", "LD E, D", "LD E, E", "LD E, H", "LD E, L", "LD E, (HL)", "LD E, A",
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"LD H, B", "LD H, C", "LD H, D", "LD H, E", "LD H, H", "LD H, L", "LD H, (HL)", "LD H, A", "LD L, B", "LD L, C", "LD L, D", "LD L, E", "LD L, H", "LD L, L", "LD L, (HL)", "LD L, A",
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"LD (HL), B", "LD (HL), C", "LD (HL), D", "LD (HL), E","LD (HL), H", "LD (HL), L", "HALT", "LD (HL), A","LD A, B", "LD A, C", "LD A, D", "LD A, E", "LD A, H", "LD A, L", "LD A, (HL)", "LD A, A",
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"ADD A, B", "ADD A, C", "ADD A, D", "ADD A, E", "ADD A, H", "ADD A, L", "ADD A, (HL)", "ADD A, A", "ADC A, B", "ADC A, C", "ADC A, D", "ADC A, E", "ADC A, H", "ADC A, L", "ADC A, (HL)", "ADC A, A",
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"SUB B", "SUB C", "SUB D", "SUB E", "SUB H", "SUB L", "SUB (HL)", "SUB A", "SBC A, B", "SBC A, C", "SBC A, D", "SBC A, E", "SBC A, H", "SBC A, L", "SBC A, (HL)", "SBC A, A",
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"AND B", "AND C", "AND D", "AND E", "AND H", "AND L", "AND (HL)", "AND A", "XOR B", "XOR C", "XOR D", "XOR E", "XOR H", "XOR L", "XOR (HL)", "XOR A",
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"OR B", "OR C", "OR D", "OR E", "OR H", "OR L", "OR (HL)", "OR A", "CP B", "CP C", "CP D", "CP E", "CP H", "CP L", "CP (HL)", "CP A",
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"RET NZ", "POP BC", "JP NZ, a", "JP a", "CALL NZ, a", "PUSH BC", "ADD A, d", "RST 00H", "RET Z", "RET", "JP Z, a", "PREFIX", "CALL Z, a","CALL a", "ADC A, d", "RST 08H",
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"RET NC", "POP DE", "JP NC, a", "ILL_D3", "CALL NC, a", "PUSH DE", "SUB d", "RST 10H", "RET C", "RETI", "JP C, a", "ILL_DB", "CALL C, a","ILL_DD", "SBC A, d", "RST 18H",
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"LDH (c), A", "POP HL", "LD ($FF00+C), A","ILL_E3","ILL_E4", "PUSH HL", "AND d", "RST 20H", "ADD SP, d", "JP HL", "LD (a), A", "ILL_EB", "ILL_EC", "ILL_ED", "XOR d", "RST 28H",
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"LDH A, (c)", "POP AF", "LD A, ($FF00+C)","DI", "ILL_F4", "PUSH AF", "OR d", "RST 30H", "LD HL, SP+d", "LD SP, HL", "LD A, (a)", "EI", "ILL_FC", "ILL_FD", "CP d", "RST 38H"
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};
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constexpr const char* _cbTemplate[256] = {
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"RLC B", "RLC C", "RLC D", "RLC E", "RLC H", "RLC L", "RLC (HL)", "RLC A", "RRC B", "RRC C", "RRC D", "RRC E", "RRC H", "RRC L", "RRC (HL)", "RRC A",
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"RL B", "RL C", "RL D", "RL E", "RL H", "RL L", "RL (HL)", "RL A", "RR B", "RR C", "RR D", "RR E", "RR H", "RR L", "RR (HL)", "RR A",
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"SLA B", "SLA C", "SLA D", "SLA E", "SLA H", "SLA L", "SLA (HL)", "SLA A", "SRA B", "SRA C", "SRA D", "SRA E", "SRA H", "SRA L", "SRA (HL)", "SRA A",
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"SWAP B", "SWAP C", "SWAP D", "SWAP E", "SWAP H", "SWAP L", "SWAP (HL)", "SWAP A", "SRL B", "SRL C", "SRL D", "SRL E", "SRL H", "SRL L", "SRL (HL)", "SRL A",
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"BIT 0, B", "BIT 0, C", "BIT 0, D", "BIT 0, E", "BIT 0, H", "BIT 0, L", "BIT 0, (HL)", "BIT 0, A", "BIT 1, B", "BIT 1, C", "BIT 1, D", "BIT 1, E", "BIT 1, H", "BIT 1, L", "BIT 1, (HL)", "BIT 1, A",
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"BIT 2, B", "BIT 2, C", "BIT 2, D", "BIT 2, E", "BIT 2, H", "BIT 2, L", "BIT 2, (HL)", "BIT 2, A", "BIT 3, B", "BIT 3, C", "BIT 3, D", "BIT 3, E", "BIT 3, H", "BIT 3, L", "BIT 3, (HL)", "BIT 3, A",
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"BIT 4, B", "BIT 4, C", "BIT 4, D", "BIT 4, E", "BIT 4, H", "BIT 4, L", "BIT 4, (HL)", "BIT 4, A", "BIT 5, B", "BIT 5, C", "BIT 5, D", "BIT 5, E", "BIT 5, H", "BIT 5, L", "BIT 5, (HL)", "BIT 5, A",
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"BIT 6, B", "BIT 6, C", "BIT 6, D", "BIT 6, E", "BIT 6, H", "BIT 6, L", "BIT 6, (HL)", "BIT 6, A", "BIT 7, B", "BIT 7, C", "BIT 7, D", "BIT 7, E", "BIT 7, H", "BIT 7, L", "BIT 7, (HL)", "BIT 7, A",
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"RES 0, B", "RES 0, C", "RES 0, D", "RES 0, E", "RES 0, H", "RES 0, L", "RES 0, (HL)", "RES 0, A", "RES 1, B", "RES 1, C", "RES 1, D", "RES 1, E", "RES 1, H", "RES 1, L", "RES 1, (HL)", "RES 1, A",
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"RES 2, B", "RES 2, C", "RES 2, D", "RES 2, E", "RES 2, H", "RES 2, L", "RES 2, (HL)", "RES 2, A", "RES 3, B", "RES 3, C", "RES 3, D", "RES 3, E", "RES 3, H", "RES 3, L", "RES 3, (HL)", "RES 3, A",
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"RES 4, B", "RES 4, C", "RES 4, D", "RES 4, E", "RES 4, H", "RES 4, L", "RES 4, (HL)", "RES 4, A", "RES 5, B", "RES 5, C", "RES 5, D", "RES 5, E", "RES 5, H", "RES 5, L", "RES 5, (HL)", "RES 5, A",
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"RES 6, B", "RES 6, C", "RES 6, D", "RES 6, E", "RES 6, H", "RES 6, L", "RES 6, (HL)", "RES 6, A", "RES 7, B", "RES 7, C", "RES 7, D", "RES 7, E", "RES 7, H", "RES 7, L", "RES 7, (HL)", "RES 7, A",
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"SET 0, B", "SET 0, C", "SET 0, D", "SET 0, E", "SET 0, H", "SET 0, L", "SET 0, (HL)", "SET 0, A", "SET 1, B", "SET 1, C", "SET 1, D", "SET 1, E", "SET 1, H", "SET 1, L", "SET 1, (HL)", "SET 1, A",
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"SET 2, B", "SET 2, C", "SET 2, D", "SET 2, E", "SET 2, H", "SET 2, L", "SET 2, (HL)", "SET 2, A", "SET 3, B", "SET 3, C", "SET 3, D", "SET 3, E", "SET 3, H", "SET 3, L", "SET 3, (HL)", "SET 3, A",
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"SET 4, B", "SET 4, C", "SET 4, D", "SET 4, E", "SET 4, H", "SET 4, L", "SET 4, (HL)", "SET 4, A", "SET 5, B", "SET 5, C", "SET 5, D", "SET 5, E", "SET 5, H", "SET 5, L", "SET 5, (HL)", "SET 5, A",
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"SET 6, B", "SET 6, C", "SET 6, D", "SET 6, E", "SET 6, H", "SET 6, L", "SET 6, (HL)", "SET 6, A", "SET 7, B", "SET 7, C", "SET 7, D", "SET 7, E", "SET 7, H", "SET 7, L", "SET 7, (HL)", "SET 7, A",
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};
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constexpr const uint8_t _opSize[256] = {
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1,3,1,1,1,1,2,1,3,1,1,1,1,1,2,1,
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1,3,1,1,1,1,2,1,2,1,1,1,1,1,2,1,
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2,3,1,1,1,1,2,1,2,1,1,1,1,1,2,1,
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2,3,1,1,1,1,2,1,2,1,1,1,1,1,2,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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1,1,3,3,3,1,2,1,1,1,3,2,3,3,2,1,
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1,1,3,1,3,1,2,1,1,1,3,1,3,1,2,1,
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2,1,1,1,1,1,2,1,2,1,3,1,1,1,2,1,
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2,1,1,1,1,1,2,1,2,1,3,1,1,1,2,1,
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};
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enum class AddrType : uint8_t
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{
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None,
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BC,
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DE,
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HL,
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C,
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Suff
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};
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static constexpr const AddrType _gbEffAddrType[256] = {
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AddrType::None,AddrType::None,AddrType::BC, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::BC, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::DE, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::DE, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::HL, AddrType::HL, AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::HL, AddrType::HL, AddrType::HL, AddrType::HL, AddrType::HL, AddrType::HL, AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::HL, AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::Suff,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::C,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,
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AddrType::None,AddrType::None,AddrType::C,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None,AddrType::None
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};
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void GameboyDisUtils::GetDisassembly(DisassemblyInfo& info, string& out, uint32_t memoryAddr, LabelManager* labelManager, EmuSettings* settings)
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{
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FastString str(settings->CheckDebuggerFlag(DebuggerFlags::UseLowerCaseDisassembly));
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AddressInfo addrInfo { 0, SnesMemoryType::GameboyMemory };
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auto getOperand = [&str, &addrInfo, labelManager](uint16_t addr) {
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addrInfo.Address = addr;
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string label = labelManager ? labelManager->GetLabel(addrInfo) :"";
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if(label.empty()) {
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str.WriteAll('$', HexUtilities::ToHex(addr));
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} else {
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str.Write(label, true);
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}
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};
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uint8_t* byteCode = info.GetByteCode();
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const char* op = byteCode[0] == 0xCB ? _cbTemplate[byteCode[1]] : _opTemplate[byteCode[0]];
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if(byteCode[0] == 0xCB) {
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byteCode++;
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}
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int i = 0;
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while(op[i]) {
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switch(op[i]) {
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//Relative jumps
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case 'r': getOperand((uint16_t)(memoryAddr + (int8_t)byteCode[1] + GetOpSize(byteCode[0]))); break;
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//Jump addresses, memory addresses
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case 'a': getOperand((uint16_t)(byteCode[1] | (byteCode[2] << 8))); break;
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case 'c': getOperand((uint16_t)(0xFF00 | byteCode[1])); break;
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//Immediate values
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case 'd': str.WriteAll("$", HexUtilities::ToHex(byteCode[1])); break;
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case 'e': str.WriteAll("$", HexUtilities::ToHex((uint16_t)(byteCode[1] | (byteCode[2] << 8)))); break;
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default: str.Write(op[i]); break;
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}
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i++;
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}
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out += str.ToString();
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}
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int32_t GameboyDisUtils::GetEffectiveAddress(DisassemblyInfo& info, Console* console, GbCpuState& state)
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{
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switch(_gbEffAddrType[info.GetOpCode()]) {
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default:
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case AddrType::None: return -1;
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case AddrType::BC: return (state.B << 8) | state.C;
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case AddrType::DE: return (state.D << 8) | state.E;
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case AddrType::HL: return (state.H << 8) | state.L;
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case AddrType::C: return 0xFF00 + state.C;
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case AddrType::Suff:
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if((info.GetByteCode()[1] & 0x07) == 0x06) {
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return (state.H << 8) | state.L;
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}
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return -1;
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}
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}
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uint8_t GameboyDisUtils::GetOpSize(uint8_t opCode)
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{
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return _opSize[opCode];
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}
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bool GameboyDisUtils::IsJumpToSub(uint8_t opCode)
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{
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return (
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opCode == 0xC4 || opCode == 0xCC || opCode == 0xD4 || opCode == 0xDC || //CALL conditional
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opCode == 0xCD ||//Unconditional CALL
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opCode == 0xC7 || opCode == 0xCF || opCode == 0xD7 || opCode == 0xDF || opCode == 0xE7 || opCode == 0xEF || opCode == 0xF7 || opCode == 0xFF //RST unconditional
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);
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}
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bool GameboyDisUtils::IsReturnInstruction(uint8_t opCode)
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{
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return (
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opCode == 0xC0 || opCode == 0xC8 || opCode == 0xD0 || opCode == 0xD8 || //Conditional RET
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opCode == 0xC9 || opCode == 0xD9 //Unconditional RET/RETI
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);
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}
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string GameboyDisUtils::GetOpTemplate(uint8_t op, bool prefixed)
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{
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return prefixed ? _cbTemplate[op] : _opTemplate[op];
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} |