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unidasm: Add CPU16 disassembler

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This commit is contained in:
AJR 2021-05-21 08:28:01 -04:00
parent c7b89485ea
commit 1382af68f4
4 changed files with 1479 additions and 0 deletions
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10
scripts/src/cpu.lua
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@ -3523,3 +3523,13 @@ if opt_tool(CPUS, "MK1") then
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/mk1/mk1dasm.cpp")
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/mk1/mk1dasm.h")
end
--------------------------------------------------
-- Motorola M68HC16 (CPU16) - Disassembler only
--@src/devices/cpu/m68hc16/m68hc16.h,CPUS["M68HC16"] = true
--------------------------------------------------
if opt_tool(CPUS, "M68HC16") then
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/m68hc16/cpu16dasm.cpp")
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/m68hc16/cpu16dasm.h")
end

1408
src/devices/cpu/m68hc16/cpu16dasm.cpp Normal file
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File diff suppressed because it is too large Load Diff

59
src/devices/cpu/m68hc16/cpu16dasm.h Normal file
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@ -0,0 +1,59 @@
// license:BSD-3-Clause
// copyright-holders:AJR
#ifndef MAME_CPU_M68HC16_CPU16DASM_H
#define MAME_CPU_M68HC16_CPU16DASM_H
#pragma once
#include <string_view>
class cpu16_disassembler : public util::disasm_interface
{
public:
// construction/destruction
cpu16_disassembler();
protected:
// disassembler overrides
virtual u32 opcode_alignment() const override;
virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
private:
enum class mode
{
UND,
INH,
IMM,
IMMS,
REGM,
XYO,
IND,
IND20,
EXT,
EXT20,
E,
REL,
BIT,
BIT16,
IXP
};
struct opcode_info
{
std::string_view m_name;
mode m_mode;
offs_t m_flags;
};
// internal helpers
void format_signed(std::ostream &stream, u16 value);
void format_index8(std::ostream &stream, u8 offset, char reg);
void format_index16(std::ostream &stream, u16 offset, char reg);
// internal tables
static const opcode_info s_opinfo[4][256];
static const std::string_view s_regset[7];
};
#endif // MAME_CPU_M68HC16_CPU16DASM_H

2
src/tools/unidasm.cpp
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@ -98,6 +98,7 @@ using util::BIT;
#include "cpu/m68000/m68kdasm.h"
#include "cpu/m6805/6805dasm.h"
#include "cpu/m6809/6x09dasm.h"
#include "cpu/m68hc16/cpu16dasm.h"
#include "cpu/m88000/m88000d.h"
#include "cpu/mb86233/mb86233d.h"
#include "cpu/mb86235/mb86235d.h"
@ -396,6 +397,7 @@ static const dasm_table_entry dasm_table[] =
{ "cop444", le, 0, []() -> util::disasm_interface * { return new cop444_disassembler; } },
{ "cop424", le, 0, []() -> util::disasm_interface * { return new cop424_disassembler; } },
{ "cp1610", be, -1, []() -> util::disasm_interface * { return new cp1610_disassembler; } },
{ "cpu16", be, 0, []() -> util::disasm_interface * { return new cpu16_disassembler; } },
{ "cr16a", le, 0, []() -> util::disasm_interface * { return new cr16a_disassembler; } },
{ "cr16b", le, 0, []() -> util::disasm_interface * { return new cr16b_disassembler; } },
{ "cr16c", le, 0, []() -> util::disasm_interface * { return new cr16c_disassembler; } },