mirror of
https://github.com/holub/mame
synced 2025-04-24 09:20:02 +03:00
(MESS) c64: Added skeleton for REU cartridge. (nw)
This commit is contained in:
Curt Coder
parent
7f831337cd
commit
801c00b931
4
.gitattributes
vendored
4
.gitattributes
vendored
@ -6631,6 +6631,8 @@ src/mess/machine/c64_prophet64.c svneol=native#text/plain
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src/mess/machine/c64_prophet64.h svneol=native#text/plain
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src/mess/machine/c64_ps64.c svneol=native#text/plain
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src/mess/machine/c64_ps64.h svneol=native#text/plain
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src/mess/machine/c64_reu.c svneol=native#text/plain
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src/mess/machine/c64_reu.h svneol=native#text/plain
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src/mess/machine/c64_rex.c svneol=native#text/plain
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src/mess/machine/c64_rex.h svneol=native#text/plain
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src/mess/machine/c64_rex_ep256.c svneol=native#text/plain
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@ -6943,6 +6945,8 @@ src/mess/machine/mos6530.c svneol=native#text/plain
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src/mess/machine/mos6530.h svneol=native#text/plain
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src/mess/machine/mos8722.c svneol=native#text/plain
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src/mess/machine/mos8722.h svneol=native#text/plain
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src/mess/machine/mos8726.c svneol=native#text/plain
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src/mess/machine/mos8726.h svneol=native#text/plain
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src/mess/machine/mpc105.c svneol=native#text/plain
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src/mess/machine/mpc105.h svneol=native#text/plain
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src/mess/machine/msx.c svneol=native#text/plain
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@ -64,7 +64,7 @@ UINT8 c128_comal80_cartridge_device::c64_cd_r(address_space &space, offs_t offse
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if (!romh)
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{
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offs_t addr = (m_bank << 14) | (offset & 0x3fff);
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data = m_roml[addr];
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data = m_romh[addr];
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}
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return data;
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160
src/mess/machine/c64_reu.c
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160
src/mess/machine/c64_reu.c
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@ -0,0 +1,160 @@
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/**********************************************************************
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Commodore 1700/1750/1764 RAM Expansion Unit emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#include "c64_reu.h"
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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#define MOS8726R1_TAG "u1"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type C64_REU1700 = &device_creator<c64_reu1700_cartridge_device>;
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const device_type C64_REU1750 = &device_creator<c64_reu1750_cartridge_device>;
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const device_type C64_REU1764 = &device_creator<c64_reu1764_cartridge_device>;
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//-------------------------------------------------
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// ROM( c64_reu )
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//-------------------------------------------------
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ROM_START( c64_reu )
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ROM_REGION( 0x8000, "roml", 0 )
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ROM_CART_LOAD( "rom", 0x0000, 0x8000, ROM_MIRROR )
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ROM_END
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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const rom_entry *c64_reu_cartridge_device::device_rom_region() const
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{
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return ROM_NAME( c64_reu );
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}
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//-------------------------------------------------
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// MACHINE_CONFIG_FRAGMENT( c64_reu )
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//-------------------------------------------------
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static MACHINE_CONFIG_FRAGMENT( c64_reu )
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MCFG_MOS8726_ADD(MOS8726R1_TAG)
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MCFG_CARTSLOT_ADD("rom")
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MCFG_CARTSLOT_EXTENSION_LIST("rom,bin")
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MACHINE_CONFIG_END
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//-------------------------------------------------
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// machine_config_additions - device-specific
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// machine configurations
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//-------------------------------------------------
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machine_config_constructor c64_reu_cartridge_device::device_mconfig_additions() const
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{
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return MACHINE_CONFIG_NAME( c64_reu );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// c64_reu_cartridge_device - constructor
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//-------------------------------------------------
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c64_reu_cartridge_device::c64_reu_cartridge_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT32 variant, int jp1, size_t ram_size) :
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device_t(mconfig, type, name, tag, owner, clock),
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device_c64_expansion_card_interface(mconfig, *this),
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m_dmac(*this, MOS8726R1_TAG),
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m_variant(variant),
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m_jp1(jp1),
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m_ram_size(ram_size)
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{
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}
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c64_reu1700_cartridge_device::c64_reu1700_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: c64_reu_cartridge_device(mconfig, C64_REU1700, "1700 REU", tag, owner, clock, TYPE_1700, 0, 128 * 1024) { }
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c64_reu1750_cartridge_device::c64_reu1750_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: c64_reu_cartridge_device(mconfig, C64_REU1750, "1750 REU", tag, owner, clock, TYPE_1750, 1, 256 * 1024) { }
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c64_reu1764_cartridge_device::c64_reu1764_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: c64_reu_cartridge_device(mconfig, C64_REU1764, "1764 REU", tag, owner, clock, TYPE_1764, 1, 512 * 1024) { }
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void c64_reu_cartridge_device::device_start()
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{
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// find memory region
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m_roml = memregion("roml")->base();
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// allocate memory
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c64_ram_pointer(machine(), m_ram_size);
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// setup DMA controller
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m_dmac->set_unscaled_clock(m_slot->phi2());
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m_dmac->bs_w(m_jp1);
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void c64_reu_cartridge_device::device_reset()
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{
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m_dmac->reset();
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}
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//-------------------------------------------------
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// c64_cd_r - cartridge data read
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//-------------------------------------------------
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UINT8 c64_reu_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int roml, int romh, int io1, int io2)
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{
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if (!m_dmac->romsel_r(roml, romh))
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{
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data = m_roml[offset & 0x7fff];
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}
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else if (!io2)
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{
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data = m_dmac->read(space, offset);
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}
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return data;
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}
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//-------------------------------------------------
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// c64_cd_w - cartridge data write
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//-------------------------------------------------
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void c64_reu_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int roml, int romh, int io1, int io2)
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{
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if (!io2)
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{
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m_dmac->write(space, offset, data);
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}
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}
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101
src/mess/machine/c64_reu.h
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101
src/mess/machine/c64_reu.h
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@ -0,0 +1,101 @@
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/**********************************************************************
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Commodore 1700/1750/1764 RAM Expansion Unit emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#pragma once
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#ifndef __REU__
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#define __REU__
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#include "emu.h"
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#include "imagedev/cartslot.h"
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#include "machine/c64exp.h"
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#include "machine/mos8726.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> c64_reu_cartridge_device
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class c64_reu_cartridge_device : public device_t,
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public device_c64_expansion_card_interface
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{
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public:
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// construction/destruction
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c64_reu_cartridge_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, UINT32 variant, int jp1, size_t ram_size);
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// optional information overrides
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virtual const rom_entry *device_rom_region() const;
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virtual machine_config_constructor device_mconfig_additions() const;
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protected:
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enum
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{
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TYPE_1700,
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TYPE_1750,
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TYPE_1764
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};
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// device-level overrides
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virtual void device_config_complete() { m_shortname = "c64_reu"; }
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virtual void device_start();
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virtual void device_reset();
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// device_c64_expansion_card_interface overrides
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virtual UINT8 c64_cd_r(address_space &space, offs_t offset, UINT8 data, int ba, int roml, int romh, int io1, int io2);
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virtual void c64_cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int roml, int romh, int io1, int io2);
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required_device<mos8726_device> m_dmac;
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int m_variant;
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int m_jp1;
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size_t m_ram_size;
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};
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// ======================> c64_reu1700_cartridge_device
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class c64_reu1700_cartridge_device : public c64_reu_cartridge_device
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{
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public:
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// construction/destruction
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c64_reu1700_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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// ======================> c64_reu1750_cartridge_device
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class c64_reu1750_cartridge_device : public c64_reu_cartridge_device
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{
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public:
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// construction/destruction
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c64_reu1750_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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// ======================> c64_reu1700_cartridge_device
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class c64_reu1764_cartridge_device : public c64_reu_cartridge_device
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{
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public:
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// construction/destruction
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c64_reu1764_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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};
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// device type definition
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extern const device_type C64_REU1700;
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extern const device_type C64_REU1750;
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extern const device_type C64_REU1764;
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#endif
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@ -1127,11 +1127,15 @@ SLOT_INTERFACE_START( c64_expansion_cards )
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SLOT_INTERFACE("georam", C64_GEORAM)
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SLOT_INTERFACE("ide64", C64_IDE64)
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SLOT_INTERFACE("neoram", C64_NEORAM)
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SLOT_INTERFACE("reu1700", C64_REU1700)
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SLOT_INTERFACE("reu1750", C64_REU1750)
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SLOT_INTERFACE("reu1764", C64_REU1764)
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SLOT_INTERFACE("sfxse", C64_SFX_SOUND_EXPANDER)
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// the following need ROMs from the software list
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SLOT_INTERFACE_INTERNAL("standard", C64_STD)
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SLOT_INTERFACE_INTERNAL("comal80", C64_COMAL80)
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SLOT_INTERFACE_INTERNAL("c128_comal80", C128_COMAL80)
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SLOT_INTERFACE_INTERNAL("cs64", C64_CURRAH_SPEECH)
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SLOT_INTERFACE_INTERNAL("dela_ep256", C64_DELA_EP256)
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SLOT_INTERFACE_INTERNAL("ep64", C64_DELA_EP64)
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@ -1182,11 +1186,6 @@ SLOT_INTERFACE_START( c64_user_port_cards )
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SLOT_INTERFACE("geocable", C64_GEOCABLE)
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SLOT_INTERFACE_END
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SLOT_INTERFACE_START( c128_expansion_cards )
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// the following need ROMs from the software list
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SLOT_INTERFACE_INTERNAL("c128_comal80", C128_COMAL80)
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SLOT_INTERFACE_END
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SLOT_INTERFACE_START( plus4_datassette_devices )
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SLOT_INTERFACE("c1531", C1531)
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SLOT_INTERFACE("diag264", DIAG264_CASSETTE_LOOPBACK)
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@ -40,6 +40,7 @@
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#include "machine/c64_pagefox.h"
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#include "machine/c64_prophet64.h"
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#include "machine/c64_ps64.h"
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#include "machine/c64_reu.h"
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#include "machine/c64_rex.h"
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#include "machine/c64_rex_ep256.h"
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#include "machine/c64_ross.h"
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@ -164,7 +165,6 @@ SLOT_INTERFACE_EXTERN( vic20_user_port_cards );
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SLOT_INTERFACE_EXTERN( vic10_expansion_cards );
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SLOT_INTERFACE_EXTERN( c64_expansion_cards );
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SLOT_INTERFACE_EXTERN( c64_user_port_cards );
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SLOT_INTERFACE_EXTERN( c128_expansion_cards );
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SLOT_INTERFACE_EXTERN( plus4_datassette_devices );
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SLOT_INTERFACE_EXTERN( plus4_expansion_cards );
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SLOT_INTERFACE_EXTERN( plus4_user_port_cards );
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126
src/mess/machine/mos8726.c
Normal file
126
src/mess/machine/mos8726.c
Normal file
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/**********************************************************************
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MOS 8726R1 DMA Controller emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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/*
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TODO:
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- all
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*/
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#include "mos8726.h"
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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//**************************************************************************
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// DEVICE TYPE DEFINITIONS
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//**************************************************************************
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const device_type MOS8726 = &device_creator<mos8726_device>;
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// mos8726_device - constructor
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//-------------------------------------------------
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mos8726_device::mos8726_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, MOS8726, "MOS8726", tag, owner, clock),
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device_execute_interface(mconfig, *this),
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m_icount(0),
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m_bs(1)
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{ }
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void mos8726_device::device_start()
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{
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// set our instruction counter
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m_icountptr = &m_icount;
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// save state
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save_item(NAME(m_bs));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void mos8726_device::device_reset()
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{
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}
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//-------------------------------------------------
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// execute_run -
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//-------------------------------------------------
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void mos8726_device::execute_run()
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{
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do
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{
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m_icount--;
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} while (m_icount > 0);
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}
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//-------------------------------------------------
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// read -
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//-------------------------------------------------
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READ8_MEMBER( mos8726_device::read )
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{
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UINT8 data = 0;
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return data;
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}
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//-------------------------------------------------
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// write -
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//-------------------------------------------------
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WRITE8_MEMBER( mos8726_device::write )
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{
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}
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//-------------------------------------------------
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// bs_w - bank select write
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//-------------------------------------------------
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WRITE_LINE_MEMBER( mos8726_device::bs_w )
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{
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m_bs = state;
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}
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//-------------------------------------------------
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// romsel_r - ROM select read
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//-------------------------------------------------
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int mos8726_device::romsel_r(int roml, int romh)
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{
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return roml && romh;
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}
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99
src/mess/machine/mos8726.h
Normal file
99
src/mess/machine/mos8726.h
Normal file
@ -0,0 +1,99 @@
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/**********************************************************************
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MOS 8726R1 DMA Controller emulation
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|
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Copyright MESS Team.
|
||||
Visit http://mamedev.org for licensing and usage restrictions.
|
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**********************************************************************
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_____ _____
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/RESET 1 |* \_/ | 64 Vcc
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/IRQ 2 | | 63 BS
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DOTCLK 3 | | 62 CAS1
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R/W 4 | | 61 CAS0
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1 MHz 5 | | 60 RAS1
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/CS 6 | | 59 RAS0
|
||||
/BA 7 | | 58 /DWE
|
||||
/DMA 8 | | 57 DD0
|
||||
D7 9 | | 56 DD1
|
||||
D6 10 | | 55 DD2
|
||||
D5 11 | | 54 DD3
|
||||
D4 12 | | 53 DD4
|
||||
D3 13 | | 52 DD5
|
||||
D2 14 | | 51 DD6
|
||||
D1 15 | MOS8726 | 50 DD7
|
||||
D0 16 | MOS8726R1 | 49 Vss
|
||||
Vss 17 | | 48 MA8
|
||||
A15 18 | | 47 MA7
|
||||
A14 19 | | 46 MA6
|
||||
A13 20 | | 45 MA5
|
||||
A12 21 | | 44 MA4
|
||||
A11 22 | | 43 MA3
|
||||
A10 23 | | 42 MA2
|
||||
A9 24 | | 41 MA1
|
||||
A8 25 | | 40 MA0
|
||||
A7 26 | | 39 TEST
|
||||
A6 27 | | 38 Vss
|
||||
A5 28 | | 37 Vcc
|
||||
A4 29 | | 36 /ROMSEL
|
||||
A3 30 | | 35 /ROML
|
||||
A2 31 | | 34 /ROMH
|
||||
A1 32 |_____________| 33 A0
|
||||
|
||||
**********************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef __MOS8726__
|
||||
#define __MOS8726__
|
||||
|
||||
#include "emu.h"
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// INTERFACE CONFIGURATION MACROS
|
||||
//**************************************************************************
|
||||
|
||||
#define MCFG_MOS8726_ADD(_tag) \
|
||||
MCFG_DEVICE_ADD(_tag, MOS8726, 1000000) // dummy clock
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// ======================> mos8726_device
|
||||
|
||||
class mos8726_device : public device_t,
|
||||
public device_execute_interface
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
mos8726_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
|
||||
|
||||
DECLARE_READ8_MEMBER( read );
|
||||
DECLARE_WRITE8_MEMBER( write );
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER( bs_w );
|
||||
|
||||
int romsel_r(int roml, int romh);
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
virtual void device_reset();
|
||||
virtual void execute_run();
|
||||
|
||||
int m_icount;
|
||||
int m_bs;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type MOS8726;
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
@ -842,6 +842,7 @@ $(MESSOBJ)/cbm.a: \
|
||||
$(MESS_MACHINE)/c64_pagefox.o \
|
||||
$(MESS_MACHINE)/c64_prophet64.o \
|
||||
$(MESS_MACHINE)/c64_ps64.o \
|
||||
$(MESS_MACHINE)/c64_reu.o \
|
||||
$(MESS_MACHINE)/c64_rex.o \
|
||||
$(MESS_MACHINE)/c64_rex_ep256.o \
|
||||
$(MESS_MACHINE)/c64_ross.o \
|
||||
@ -914,6 +915,7 @@ $(MESSOBJ)/cbm.a: \
|
||||
$(MESS_MACHINE)/64h156.o \
|
||||
$(MESS_MACHINE)/petcass.o \
|
||||
$(MESS_MACHINE)/mos8722.o \
|
||||
$(MESS_MACHINE)/mos8726.o \
|
||||
$(MESS_MACHINE)/c2n.o \
|
||||
$(MESS_VIDEO)/vdc8563.o \
|
||||
$(MESS_VIDEO)/vic6567.o \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user