mirror of https://github.com/bsnes-emu/bsnes.git
233 lines
8.0 KiB
C++
233 lines
8.0 KiB
C++
#pragma once
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//Zilog Z80
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namespace Processor {
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struct Z80 {
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struct Bus {
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virtual auto read(uint16 addr) -> uint8 = 0;
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virtual auto write(uint16 addr, uint8 data) -> void = 0;
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virtual auto in(uint8 addr) -> uint8 = 0;
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virtual auto out(uint8 addr, uint8 data) -> void = 0;
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};
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virtual auto step(uint clocks) -> void = 0;
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//z80.cpp
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auto power() -> void;
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auto reset() -> void;
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auto irq(bool maskable, uint16 vector = 0x0000, uint8 extbus = 0xff) -> bool;
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auto parity(uint8) const -> bool;
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//memory.cpp
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auto wait(uint clocks = 1) -> void;
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auto opcode() -> uint8;
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auto operand() -> uint8;
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auto operands() -> uint16;
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auto push(uint16) -> void;
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auto pop() -> uint16;
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auto displace(uint16&) -> uint16;
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auto read(uint16 addr) -> uint8;
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auto write(uint16 addr, uint8 data) -> void;
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auto in(uint8 addr) -> uint8;
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auto out(uint8 addr, uint8 data) -> void;
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//instruction.cpp
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auto instruction() -> void;
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auto instruction(uint8 code) -> void;
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auto instructionCB(uint8 code) -> void;
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auto instructionCBd(uint16 addr, uint8 code) -> void;
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auto instructionED(uint8 code) -> void;
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//instructions.cpp
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auto ADD(uint8, uint8, bool = false) -> uint8;
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auto AND(uint8, uint8) -> uint8;
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auto BIT(uint3, uint8) -> uint8;
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auto DEC(uint8) -> uint8;
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auto INC(uint8) -> uint8;
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auto OR (uint8, uint8) -> uint8;
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auto RES(uint3, uint8) -> uint8;
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auto RL (uint8) -> uint8;
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auto RLC(uint8) -> uint8;
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auto RR (uint8) -> uint8;
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auto RRC(uint8) -> uint8;
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auto SET(uint3, uint8) -> uint8;
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auto SLA(uint8) -> uint8;
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auto SLL(uint8) -> uint8;
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auto SRA(uint8) -> uint8;
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auto SRL(uint8) -> uint8;
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auto SUB(uint8, uint8, bool = false) -> uint8;
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auto XOR(uint8, uint8) -> uint8;
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auto instructionADC_a_irr(uint16&) -> void;
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auto instructionADC_a_n() -> void;
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auto instructionADC_a_r(uint8&) -> void;
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auto instructionADC_hl_rr(uint16&) -> void;
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auto instructionADD_a_irr(uint16&) -> void;
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auto instructionADD_a_n() -> void;
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auto instructionADD_a_r(uint8&) -> void;
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auto instructionADD_hl_rr(uint16&) -> void;
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auto instructionAND_a_irr(uint16&) -> void;
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auto instructionAND_a_n() -> void;
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auto instructionAND_a_r(uint8&) -> void;
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auto instructionBIT_o_irr(uint3, uint16&) -> void;
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auto instructionBIT_o_irr_r(uint3, uint16&, uint8&) -> void;
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auto instructionBIT_o_r(uint3, uint8&) -> void;
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auto instructionCALL_c_nn(bool c) -> void;
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auto instructionCALL_nn() -> void;
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auto instructionCCF() -> void;
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auto instructionCP_a_irr(uint16& x) -> void;
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auto instructionCP_a_n() -> void;
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auto instructionCP_a_r(uint8& x) -> void;
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auto instructionCPD() -> void;
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auto instructionCPDR() -> void;
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auto instructionCPI() -> void;
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auto instructionCPIR() -> void;
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auto instructionCPL() -> void;
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auto instructionDAA() -> void;
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auto instructionDEC_irr(uint16&) -> void;
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auto instructionDEC_r(uint8&) -> void;
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auto instructionDEC_rr(uint16&) -> void;
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auto instructionDI() -> void;
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auto instructionDJNZ_e() -> void;
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auto instructionEI() -> void;
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auto instructionEX_rr_rr(uint16&, uint16&) -> void;
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auto instructionEXX() -> void;
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auto instructionHALT() -> void;
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auto instructionIM_o(uint2) -> void;
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auto instructionIN_a_in() -> void;
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auto instructionIN_r_ic(uint8&) -> void;
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auto instructionINC_irr(uint16&) -> void;
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auto instructionINC_r(uint8&) -> void;
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auto instructionINC_rr(uint16&) -> void;
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auto instructionIND() -> void;
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auto instructionINDR() -> void;
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auto instructionINI() -> void;
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auto instructionINIR() -> void;
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auto instructionJP_c_nn(bool) -> void;
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auto instructionJP_rr(uint16&) -> void;
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auto instructionJR_c_e(bool) -> void;
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auto instructionLD_a_inn() -> void;
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auto instructionLD_a_irr(uint16& x) -> void;
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auto instructionLD_inn_a() -> void;
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auto instructionLD_inn_rr(uint16&) -> void;
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auto instructionLD_irr_a(uint16&) -> void;
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auto instructionLD_irr_n(uint16&) -> void;
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auto instructionLD_irr_r(uint16&, uint8&) -> void;
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auto instructionLD_r_n(uint8&) -> void;
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auto instructionLD_r_irr(uint8&, uint16&) -> void;
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auto instructionLD_r_r(uint8&, uint8&) -> void;
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auto instructionLD_r_r1(uint8&, uint8&) -> void;
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auto instructionLD_rr_inn(uint16&) -> void;
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auto instructionLD_rr_nn(uint16&) -> void;
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auto instructionLD_sp_rr(uint16&) -> void;
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auto instructionLDD() -> void;
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auto instructionLDDR() -> void;
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auto instructionLDI() -> void;
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auto instructionLDIR() -> void;
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auto instructionNEG() -> void;
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auto instructionNOP() -> void;
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auto instructionOR_a_irr(uint16&) -> void;
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auto instructionOR_a_n() -> void;
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auto instructionOR_a_r(uint8&) -> void;
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auto instructionOTDR() -> void;
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auto instructionOTIR() -> void;
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auto instructionOUT_ic_r(uint8&) -> void;
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auto instructionOUT_n_a() -> void;
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auto instructionOUTD() -> void;
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auto instructionOUTI() -> void;
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auto instructionPOP_rr(uint16&) -> void;
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auto instructionPUSH_rr(uint16&) -> void;
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auto instructionRES_o_irr(uint3, uint16&) -> void;
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auto instructionRES_o_irr_r(uint3, uint16&, uint8&) -> void;
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auto instructionRES_o_r(uint3, uint8&) -> void;
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auto instructionRET() -> void;
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auto instructionRET_c(bool c) -> void;
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auto instructionRETI() -> void;
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auto instructionRETN() -> void;
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auto instructionRL_irr(uint16&) -> void;
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auto instructionRL_irr_r(uint16&, uint8&) -> void;
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auto instructionRL_r(uint8&) -> void;
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auto instructionRLA() -> void;
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auto instructionRLC_irr(uint16&) -> void;
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auto instructionRLC_irr_r(uint16&, uint8&) -> void;
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auto instructionRLC_r(uint8&) -> void;
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auto instructionRLCA() -> void;
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auto instructionRLD() -> void;
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auto instructionRR_irr(uint16&) -> void;
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auto instructionRR_irr_r(uint16&, uint8&) -> void;
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auto instructionRR_r(uint8&) -> void;
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auto instructionRRA() -> void;
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auto instructionRRC_irr(uint16&) -> void;
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auto instructionRRC_irr_r(uint16&, uint8&) -> void;
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auto instructionRRC_r(uint8&) -> void;
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auto instructionRRCA() -> void;
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auto instructionRRD() -> void;
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auto instructionRST_o(uint3) -> void;
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auto instructionSBC_a_irr(uint16&) -> void;
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auto instructionSBC_a_n() -> void;
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auto instructionSBC_a_r(uint8&) -> void;
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auto instructionSBC_hl_rr(uint16&) -> void;
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auto instructionSCF() -> void;
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auto instructionSET_o_irr(uint3, uint16&) -> void;
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auto instructionSET_o_irr_r(uint3, uint16&, uint8&) -> void;
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auto instructionSET_o_r(uint3, uint8&) -> void;
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auto instructionSLA_irr(uint16&) -> void;
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auto instructionSLA_irr_r(uint16&, uint8&) -> void;
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auto instructionSLA_r(uint8&) -> void;
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auto instructionSLL_irr(uint16&) -> void;
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auto instructionSLL_irr_r(uint16&, uint8&) -> void;
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auto instructionSLL_r(uint8&) -> void;
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auto instructionSRA_irr(uint16&) -> void;
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auto instructionSRA_irr_r(uint16&, uint8&) -> void;
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auto instructionSRA_r(uint8&) -> void;
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auto instructionSRL_irr(uint16&) -> void;
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auto instructionSRL_irr_r(uint16&, uint8&) -> void;
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auto instructionSRL_r(uint8&) -> void;
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auto instructionSUB_a_irr(uint16&) -> void;
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auto instructionSUB_a_n() -> void;
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auto instructionSUB_a_r(uint8&) -> void;
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auto instructionXOR_a_irr(uint16&) -> void;
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auto instructionXOR_a_n() -> void;
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auto instructionXOR_a_r(uint8&) -> void;
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//disassembler.cpp
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auto disassemble(uint16 pc) -> string;
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auto disassemble(uint16 pc, uint8 prefix, uint8 code) -> string;
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auto disassembleCB(uint16 pc, uint8 prefix, uint8 code) -> string;
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auto disassembleCBd(uint16 pc, uint8 prefix, int8 d, uint8 code) -> string;
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auto disassembleED(uint16 pc, uint8 prefix, uint8 code) -> string;
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struct Registers {
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union Pair {
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Pair() : word(0) {}
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uint16 word;
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struct Byte { uint8 order_msb2(hi, lo); } byte;
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};
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Pair af, af_;
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Pair bc, bc_;
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Pair de, de_;
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Pair hl, hl_;
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Pair ix;
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Pair iy;
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Pair ir;
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uint16 sp;
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uint16 pc;
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boolean ei; //EI instruction executed
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boolean halt; //HALT instruction executed
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boolean iff1; //interrupt flip-flop 1
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boolean iff2; //interrupt flip-flop 2
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uint2 im; //interrupt mode (0-2)
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Pair* hlp = nullptr;
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} r;
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Bus* bus = nullptr;
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};
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}
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