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Diffstat (limited to 'src/devices/cpu/saturn/saturnds.h')
-rw-r--r-- | src/devices/cpu/saturn/saturnds.h | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/devices/cpu/saturn/saturnds.h b/src/devices/cpu/saturn/saturnds.h new file mode 100644 index 00000000000..676f59ff290 --- /dev/null +++ b/src/devices/cpu/saturn/saturnds.h @@ -0,0 +1,215 @@ +// license:BSD-3-Clause +// copyright-holders:Peter Trauner,Antoine Mine +/***************************************************************************** + * + * saturnds.c + * portable saturn emulator interface + * (hp calculators) + * + *****************************************************************************/ + +#ifndef MAME_CPU_SATURN_SATURNDS_H +#define MAME_CPU_SATURN_SATURNDS_H + +#pragma once + +class saturn_disassembler : public util::disasm_interface +{ +public: + struct config { + virtual ~config() = default; + virtual bool get_nonstandard_mnemonics_mode() const = 0; + }; + + saturn_disassembler(config *conf); + virtual ~saturn_disassembler() = default; + + virtual u32 opcode_alignment() const override; + virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) override; + +private: + // don't split branch and return, source relies on this ordering + enum MNEMONICS + { + Return, ReturnSetXM, ReturnSetCarry, ReturnClearCarry, ReturnFromInterrupt, + jump3,jump4,jump, + call3,call4,call, + branchCarrySet, returnCarrySet, + branchCarryClear, returnCarryClear, + + outCS, outC, inA, inC, + unconfig, xconfig, Cid, shutdown, cp1, reset, buscc, + CcopyP, PcopyC, sreq, CswapP, + + inton, AloadImm, buscb, + clearAbit, setAbit, + branchAbitclear, returnAbitclear, + branchAbitset, returnAbitset, + clearCbit, setCbit, + branchCbitclear, returnCbitclear, + branchCbitset, returnCbitset, + PCloadA, buscd, PCloadC, intoff, rsi, + + jumpA, jumpC, PCcopyA, PCcopyC, AcopyPC, CcopyPC, + + clearHST, + branchHSTclear, returnHSTclear, + + clearBitST, setBitST, + branchSTclear, returnSTclear, + branchSTset, returnSTset, + + branchPdiffers, returnPdiffers, + branchPequals, returnPequals, + + branchAequalsB, returnAequalsB, + branchBequalsC, returnBequalsC, + branchAequalsC, returnAequalsC, + branchCequalsD, returnCequalsD, + branchAdiffersB, returnAdiffersB, + branchBdiffersC, returnBdiffersC, + branchAdiffersC, returnAdiffersC, + branchCdiffersD, returnCdiffersD, + branchAzero, returnAzero, + branchBzero, returnBzero, + branchCzero, returnCzero, + branchDzero, returnDzero, + branchAnotzero, returnAnotzero, + branchBnotzero, returnBnotzero, + branchCnotzero, returnCnotzero, + branchDnotzero, returnDnotzero, + + branchAgreaterB, returnAgreaterB, + branchBgreaterC, returnBgreaterC, + branchCgreaterA, returnCgreaterA, + branchDgreaterC, returnDgreaterC, + branchAlowerB, returnAlowerB, + branchBlowerC, returnBlowerC, + branchClowerA, returnClowerA, + branchDlowerC, returnDlowerC, + branchAnotlowerB, returnAnotlowerB, + branchBnotlowerC, returnBnotlowerC, + branchCnotlowerA, returnCnotlowerA, + branchDnotlowerC, returnDnotlowerC, + branchAnotgreaterB, returnAnotgreaterB, + branchBnotgreaterC, returnBnotgreaterC, + branchCnotgreaterA, returnCnotgreaterA, + branchDnotgreaterC, returnDnotgreaterC, + + SetHexMode, SetDecMode, + PushC, PopC, + + D0loadImm2, D0loadImm4, D0loadImm5, + D1loadImm2, D1loadImm4, D1loadImm5, + PloadImm, CloadImm, + + clearST, + CcopyST, STcopyC, + swapCST, + + incP, decP, + + R0copyA, R1copyA, R2copyA, R3copyA, R4copyA, + R0copyC, R1copyC, R2copyC, R3copyC, R4copyC, + + AcopyR0, AcopyR1, AcopyR2, AcopyR3, AcopyR4, + CcopyR0, CcopyR1, CcopyR2, CcopyR3, CcopyR4, + + D0copyA, D1copyA, D0copyC, D1copyC, + D0copyAShort, D1copyAShort, D0copyCShort, D1copyCShort, // other class mnemonic + + SwapAR0, SwapAR1, SwapAR2, SwapAR3, SwapAR4, + SwapCR0, SwapCR1, SwapCR2, SwapCR3, SwapCR4, + + SwapAD0, SwapAD1, SwapCD0, SwapCD1, + SwapAD0Short, SwapAD1Short, SwapCD0Short, SwapCD1Short, // other class mnemonic + + D0storeA, D1storeA, D0storeC, D1storeC, + AloadD0, AloadD1, CloadD0, CloadD1, + + D0addImm, D1addImm, D0subImm, D1subImm, + AaddImm, BaddImm, CaddImm, DaddImm, + AsubImm, BsubImm, CsubImm, DsubImm, + + AandB, BandC, CandA, DandC, BandA, CandB, AandC, CandD, + AorB, BorC, CorA, DorC, BorA, CorB, AorC, CorD, + + Ashiftrightbit, Bshiftrightbit, Cshiftrightbit, Dshiftrightbit, + + AshiftleftCarry, BshiftleftCarry, CshiftleftCarry, DshiftleftCarry, + AshiftrightCarry, BshiftrightCarry, CshiftrightCarry, DshiftrightCarry, + + AaddB, BaddC, CaddA, DaddC, AaddA, BaddB, CaddC, DaddD, + BaddA, CaddB, AaddC, CaddD, decA, decB, decC, decD, + + AsubB, BsubC, CsubA, DsubC, incA, incB, incC, incD, + BsubA, CsubB, AsubC, CsubD, AsubnB, BsubnC, CsubnA, DsubnC, + + clearA, clearB, clearC, clearD, + AcopyB, BcopyC, CcopyA, DcopyC, BcopyA, CcopyB, AcopyC, CcopyD, + AswapB, BswapC, CswapA, DswapC, + + Ashiftleft, Bshiftleft, Cshiftleft, Dshiftleft, + Ashiftright, Bshiftright, Cshiftright, Dshiftright, + negateA, negateB, negateC, negateD, + notA, notB, notC, notD + }; + + enum opcode_sel + { + Complete=-1, + Illegal, + Opcode0, Opcode0E, Opcode0Ea, + Opcode1, Opcode10, Opcode11, Opcode12, Opcode13, Opcode14, Opcode15, + Opcode8, Opcode80, Opcode808, Opcode8081, + Opcode81, Opcode818, Opcode818a, Opcode819, Opcode819a, + Opcode81A, Opcode81Aa, Opcode81Aa0,Opcode81Aa1, Opcode81Aa2, Opcode81B, + Opcode8A, Opcode8B, + Opcode9, Opcode9a, Opcode9b, + OpcodeA, OpcodeAa, OpcodeAb, + OpcodeB, OpcodeBa, OpcodeBb, + OpcodeC, + OpcodeD, + OpcodeE, + OpcodeF + }; + + enum opcode_adr + { + AdrNone, + AdrAF, AdrA, AdrB, AdrCount, + BranchReturn, TestBranchRet, ImmBranch, + ABranchReturn, // address field A + xBranchReturn, // address field specified in previous opcode entry + Imm, ImmCount, ImmCload, Imm2, Imm4, Imm5, + Dis3, Dis3Call, Dis4, Dis4Call, Abs, + FieldP, FieldWP, FieldXS, FieldX, FieldS, FieldM, FieldB, FieldW, FieldA, + AdrImmCount + }; + + struct OPCODE + { + opcode_sel sel; + opcode_adr adr; + MNEMONICS mnemonic; + }; + + config *m_config; + + static const char *const adr_b[]; + static const char *const adr_af[]; + static const char *const adr_a[]; + static const char number_2_hex[]; + + static const char *const mnemonics[][2]; + static const OPCODE opcs[][0x10]; + + static const int field_adr_af[]; + static const int field_adr_a[]; + static const int field_adr_b[]; + + const char *field_2_string(int adr_enum); + +}; + +#endif |