mirror of https://github.com/TomHarte/CLK.git
93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
//
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// Z80.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 30/12/2017.
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// Copyright 2017 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include <cstdint>
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#include <functional>
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#include <map>
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#include <set>
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#include <vector>
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namespace Analyser::Static::Z80 {
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struct Instruction {
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/*! The address this instruction starts at. This is a mapped address. */
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uint16_t address = 0;
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/*! The operation this instruction performs. */
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enum class Operation {
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NOP,
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EXAFAFd, EXX, EX,
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LD, HALT,
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ADD, ADC, SUB, SBC, AND, XOR, OR, CP,
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INC, DEC,
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RLCA, RRCA, RLA, RRA, DAA, CPL, SCF, CCF,
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RLD, RRD,
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DJNZ, JR, JP, CALL, RST, RET, RETI, RETN,
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PUSH, POP,
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IN, OUT,
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EI, DI,
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RLC, RRC, RL, RR, SLA, SRA, SLL, SRL,
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BIT, RES, SET,
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LDI, CPI, INI, OUTI,
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LDD, CPD, IND, OUTD,
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LDIR, CPIR, INIR, OTIR,
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LDDR, CPDR, INDR, OTDR,
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NEG,
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IM,
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Invalid
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} operation = Operation::NOP;
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/*! The condition required for this instruction to take effect. */
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enum class Condition {
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None, NZ, Z, NC, C, PO, PE, P, M
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} condition = Condition::None;
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enum class Location {
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B, C, D, E, H, L, HL_Indirect, A, I, R,
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BC, DE, HL, SP, AF, Operand,
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IX_Indirect_Offset, IY_Indirect_Offset, IXh, IXl, IYh, IYl,
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Operand_Indirect,
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BC_Indirect, DE_Indirect, SP_Indirect,
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None
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};
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/*! The locations of source data for this instruction. */
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Location source = Location::None;
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/*! The locations of destination data from this instruction. */
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Location destination = Location::None;
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/*! The operand, if any; if this is used then it'll be referenced by either the source or destination location. */
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int operand = 0;
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/*! The offset to apply, if any; applies to IX_Indirect_Offset and IY_Indirect_Offset locations. */
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int offset = 0;
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};
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struct Disassembly {
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std::map<uint16_t, Instruction> instructions_by_address;
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std::set<uint16_t> outward_calls;
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std::set<uint16_t> internal_calls;
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std::set<uint16_t> external_stores, external_loads, external_modifies;
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std::set<uint16_t> internal_stores, internal_loads, internal_modifies;
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};
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enum class Approach {
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/// Disassemble from the supplied entry points until an indeterminate branch or return only, adding other fully-static
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/// entry points as they are observed.
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Recursive,
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/// Disassemble all supplied bytes, regardless of what nonsense may be encountered by accidental parsing of data areas.
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Exhaustive,
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};
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Disassembly Disassemble(
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const std::vector<uint8_t> &memory,
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const std::function<std::size_t(uint16_t)> &address_mapper,
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std::vector<uint16_t> entry_points,
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Approach approach);
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}
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