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(MESS) c64: Added CMD Turbo232 cartridge emulation. [Curt Coder]
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Curt Coder
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30acea03a2
2
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@ -6975,6 +6975,8 @@ src/mess/machine/c64_system3.c svneol=native#text/plain
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src/mess/machine/c64_system3.h svneol=native#text/plain
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src/mess/machine/c64_tdos.c svneol=native#text/plain
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src/mess/machine/c64_tdos.h svneol=native#text/plain
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src/mess/machine/c64_turbo232.c svneol=native#text/plain
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src/mess/machine/c64_turbo232.h svneol=native#text/plain
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src/mess/machine/c64_vw64.c svneol=native#text/plain
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src/mess/machine/c64_vw64.h svneol=native#text/plain
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src/mess/machine/c64_warp_speed.c svneol=native#text/plain
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@ -873,4 +873,16 @@
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</part>
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</software>
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<software name="turbo232">
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<description>CMD Turbo232</description>
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<year>1997</year>
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<publisher>CMD</publisher>
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<part name="flop1" interface="floppy_5_25">
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<dataarea name="flop" size="174848">
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<rom name="turbo232.d64" size="174848" crc="48874d98" sha1="28b6d25bb0b62df81c4b17d9205c059c6736e817" offset="0" />
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</dataarea>
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</part>
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</software>
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</softwarelist>
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209
src/mess/machine/c64_turbo232.c
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209
src/mess/machine/c64_turbo232.c
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@ -0,0 +1,209 @@
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/**********************************************************************
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CMD Turbo232 RS-232 cartridge 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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http://ar.c64.org/wiki/Turbo232_Programming.txt
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*/
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#include "c64_turbo232.h"
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//**************************************************************************
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// MACROS/CONSTANTS
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//**************************************************************************
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#define MOS6551_TAG "mos6551"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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const device_type C64_TURBO232 = &device_creator<c64_turbo232_cartridge_device>;
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//-------------------------------------------------
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// MACHINE_CONFIG_FRAGMENT( c64_turbo232 )
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//-------------------------------------------------
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static MACHINE_CONFIG_FRAGMENT( c64_turbo232 )
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MCFG_MOS6551_ADD(MOS6551_TAG, XTAL_3_6864MHz, DEVWRITELINE(DEVICE_SELF, c64_turbo232_cartridge_device, acia_irq_w))
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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_turbo232_cartridge_device::device_mconfig_additions() const
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{
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return MACHINE_CONFIG_NAME( c64_turbo232 );
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}
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//-------------------------------------------------
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// INPUT_PORTS( c64_turbo232 )
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//-------------------------------------------------
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static INPUT_PORTS_START( c64_turbo232 )
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PORT_START("CS")
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PORT_DIPNAME( 0x03, 0x01, "Base Address" )
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PORT_DIPSETTING( 0x00, "$D700 (C128)" )
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PORT_DIPSETTING( 0x01, "$DE00" )
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PORT_DIPSETTING( 0x02, "$DF00" )
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PORT_START("IRQ")
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PORT_DIPNAME( 0x01, 0x01, "Interrupt" )
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PORT_DIPSETTING( 0x00, "IRQ (C128)" )
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PORT_DIPSETTING( 0x01, "NMI" )
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INPUT_PORTS_END
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//-------------------------------------------------
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// input_ports - device-specific input ports
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//-------------------------------------------------
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ioport_constructor c64_turbo232_cartridge_device::device_input_ports() const
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{
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return INPUT_PORTS_NAME( c64_turbo232 );
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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_turbo232_cartridge_device - constructor
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//-------------------------------------------------
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c64_turbo232_cartridge_device::c64_turbo232_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, C64_TURBO232, "C64 Turbo232 cartridge", tag, owner, clock),
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device_c64_expansion_card_interface(mconfig, *this),
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m_acia(*this, MOS6551_TAG),
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m_io_cs(*this, "CS"),
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m_io_irq(*this, "IRQ")
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{
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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 c64_turbo232_cartridge_device::device_start()
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{
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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_turbo232_cartridge_device::device_reset()
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{
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m_acia->reset();
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m_cs = m_io_cs->read();
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m_irq = m_io_irq->read();
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m_es = 0;
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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_turbo232_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
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{
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if (((m_cs == DE00) && !io1) || ((m_cs == DF00) && !io2) ||
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((m_cs == D700) && ((offset & 0xff00) == 0xd700)))
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{
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if (!(offset & 0xe0))
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{
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switch (offset & 0x07)
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{
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case 0: case 1: case 2: case 3:
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data = m_acia->read(space, offset & 0x03);
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break;
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case 7:
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data = m_es;
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}
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}
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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_turbo232_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
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{
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if (((m_cs == DE00) && !io1) || ((m_cs == DF00) && !io2) ||
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((m_cs == D700) && ((offset & 0xff00) == 0xd700)))
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{
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if (!(offset & 0xe0))
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{
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switch (offset & 0x07)
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{
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case 0: case 1: case 2:
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m_acia->write(space, offset & 0x03, data);
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break;
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case 3:
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m_acia->write(space, offset & 0x03, data);
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if (data & 0x0f)
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m_es &= ~ES_M;
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else
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m_es |= ES_M;
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break;
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case 7:
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if (m_es & ES_M)
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{
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data = m_es;
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switch (m_es & ES_S_MASK)
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{
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case ES_S_230400: m_acia->set_rxc(230400*16); break;
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case ES_S_115200: m_acia->set_rxc(115200*16); break;
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case ES_S_57600: m_acia->set_rxc(57600*16); break;
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case ES_S_UNDEFINED: m_acia->set_rxc(0); break;
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}
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}
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}
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}
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}
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}
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//-------------------------------------------------
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// acia_irq_w -
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//-------------------------------------------------
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WRITE_LINE_MEMBER( c64_turbo232_cartridge_device::acia_irq_w )
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{
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switch (m_irq)
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{
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case IRQ: m_slot->irq_w(state); break;
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case NMI: m_slot->nmi_w(state); break;
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}
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}
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90
src/mess/machine/c64_turbo232.h
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90
src/mess/machine/c64_turbo232.h
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@ -0,0 +1,90 @@
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/**********************************************************************
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CMD Turbo232 RS-232 cartridge 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 __TURBO232__
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#define __TURBO232__
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#include "emu.h"
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#include "machine/c64exp.h"
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#include "machine/mos6551.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> c64_turbo232_cartridge_device
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class c64_turbo232_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_turbo232_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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// optional information overrides
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virtual machine_config_constructor device_mconfig_additions() const;
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virtual ioport_constructor device_input_ports() const;
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DECLARE_WRITE_LINE_MEMBER( acia_irq_w );
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protected:
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// device-level overrides
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virtual void device_config_complete() { m_shortname = "c64_turbo232"; }
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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 sphi2, 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 sphi2, int ba, int roml, int romh, int io1, int io2);
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private:
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required_device<mos6551_device> m_acia;
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required_ioport m_io_cs;
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required_ioport m_io_irq;
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enum
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{
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D700 = 0,
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DE00,
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DF00
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};
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enum
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{
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IRQ = 0,
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NMI
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};
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enum
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{
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ES_S_230400 = 0x00,
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ES_S_115200 = 0x01,
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ES_S_57600 = 0x02,
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ES_S_UNDEFINED = 0x03,
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ES_S_MASK = 0x03,
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ES_M = 0x04
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};
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int m_cs;
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int m_irq;
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UINT8 m_es;
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};
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// device type definition
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extern const device_type C64_TURBO232;
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#endif
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@ -1129,6 +1129,7 @@ SLOT_INTERFACE_START( c64_expansion_cards )
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SLOT_INTERFACE("sfxse", C64_SFX_SOUND_EXPANDER)
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SLOT_INTERFACE("supercpu", C64_SUPERCPU)
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SLOT_INTERFACE("swiftlink", C64_SWIFTLINK)
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SLOT_INTERFACE("turbo232", C64_TURBO232)
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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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@ -58,6 +58,7 @@
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#include "machine/c64_swiftlink.h"
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#include "machine/c64_system3.h"
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#include "machine/c64_tdos.h"
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#include "machine/c64_turbo232.h"
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#include "machine/c64_vw64.h"
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#include "machine/c64_warp_speed.h"
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#include "machine/c64_westermann.h"
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@ -889,6 +889,7 @@ $(MESSOBJ)/cbm.a: \
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$(MESS_MACHINE)/c64_swiftlink.o \
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$(MESS_MACHINE)/c64_system3.o \
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$(MESS_MACHINE)/c64_tdos.o \
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$(MESS_MACHINE)/c64_turbo232.o \
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$(MESS_MACHINE)/c64_vw64.o \
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$(MESS_MACHINE)/c64_warp_speed.o \
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$(MESS_MACHINE)/c64_westermann.o \
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