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sega/segaybd.cpp: Switch Sega Y-Board games back to Musashi (MT08783). [R. Belmont]

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cpu/m68000: added option to use Musashi for M68000 emulation. [R. Belmont]
This commit is contained in:
arbee 2024-05-12 14:15:45 -04:00
parent df62ba1451
commit f9ef8589ef
5 changed files with 61 additions and 7 deletions
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2
scripts/src/cpu.lua
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@ -2042,6 +2042,8 @@ if CPUS["M680X0"] then
MAME_DIR .. "src/devices/cpu/m68000/m68008-sip8.cpp",
MAME_DIR .. "src/devices/cpu/m68000/m68008.h",
MAME_DIR .. "src/devices/cpu/m68000/m68008.cpp",
MAME_DIR .. "src/devices/cpu/m68000/m68000musashi.h",
MAME_DIR .. "src/devices/cpu/m68000/m68000musashi.cpp",
MAME_DIR .. "src/devices/cpu/m68000/m68010.h",
MAME_DIR .. "src/devices/cpu/m68000/m68010.cpp",
MAME_DIR .. "src/devices/cpu/m68000/m68020.h",

25
src/devices/cpu/m68000/m68000musashi.cpp Executable file
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@ -0,0 +1,25 @@
// license:BSD-3-Clause
// copyright-holders:Karl Stenerud
#include "emu.h"
#include "m68000musashi.h"
#include "m68kdasm.h"
DEFINE_DEVICE_TYPE(M68000MUSASHI, m68000msh_device, "m68000msh", "Motorola MC68000 (Musashi)")
std::unique_ptr<util::disasm_interface> m68000msh_device::create_disassembler()
{
return std::make_unique<m68k_disassembler>(m68k_disassembler::TYPE_68010);
}
m68000msh_device::m68000msh_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: m68000_musashi_device(mconfig, tag, owner, clock, M68000MUSASHI, 16, 24)
{
}
void m68000msh_device::device_start()
{
m68000_musashi_device::device_start();
init_cpu_m68000();
}

27
src/devices/cpu/m68000/m68000musashi.h Executable file
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@ -0,0 +1,27 @@
// license:BSD-3-Clause
// copyright-holders:Karl Stenerud
#ifndef MAME_CPU_M68000_M68000MUSASHI_H
#define MAME_CPU_M68000_M68000MUSASHI_H
#pragma once
#include "m68kmusashi.h"
class m68000msh_device : public m68000_musashi_device
{
public:
// construction/destruction
m68000msh_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
virtual u32 execute_min_cycles() const noexcept override { return 4; }
virtual u32 execute_max_cycles() const noexcept override { return 158; }
// device-level overrides
virtual void device_start() override;
};
DECLARE_DEVICE_TYPE(M68000MUSASHI, m68000msh_device)
#endif

6
src/mame/sega/segaybd.cpp
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@ -1428,13 +1428,13 @@ INPUT_PORTS_END
void segaybd_state::yboard(machine_config &config)
{
// basic machine hardware
M68000(config, m_maincpu, MASTER_CLOCK/4);
M68000MUSASHI(config, m_maincpu, MASTER_CLOCK/4);
m_maincpu->set_addrmap(AS_PROGRAM, &segaybd_state::main_map);
M68000(config, m_subx, MASTER_CLOCK/4);
M68000MUSASHI(config, m_subx, MASTER_CLOCK/4);
m_subx->set_addrmap(AS_PROGRAM, &segaybd_state::subx_map);
M68000(config, m_suby, MASTER_CLOCK/4);
M68000MUSASHI(config, m_suby, MASTER_CLOCK/4);
m_suby->set_addrmap(AS_PROGRAM, &segaybd_state::suby_map);
Z80(config, m_soundcpu, SOUND_CLOCK/8);

8
src/mame/sega/segaybd.h
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@ -10,7 +10,7 @@
#pragma once
#include "cpu/m68000/m68000.h"
#include "cpu/m68000/m68000musashi.h"
#include "cpu/z80/z80.h"
#include "machine/mb3773.h"
#include "segaic16.h"
@ -123,9 +123,9 @@ private:
void update_irqs();
// devices
required_device<m68000_device> m_maincpu;
required_device<m68000_device> m_subx;
required_device<m68000_device> m_suby;
required_device<m68000msh_device> m_maincpu;
required_device<m68000msh_device> m_subx;
required_device<m68000msh_device> m_suby;
required_device<z80_device> m_soundcpu;
optional_device<z80_device> m_linkcpu;
required_device<mb3773_device> m_watchdog;