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(MESS) Apple I: Support CFFA1 Compact Flash/IDE adaptor [R. Belmont, based on a patch by Christopher Bachmann]

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R. Belmont 2014-04-19 21:32:59 +00:00
parent 6c6b08a833
commit e78d72a32c
5 changed files with 212 additions and 0 deletions
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2
.gitattributes vendored
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@ -392,6 +392,8 @@ src/emu/bus/a1bus/a1bus.c svneol=native#text/plain
src/emu/bus/a1bus/a1bus.h svneol=native#text/plain
src/emu/bus/a1bus/a1cassette.c svneol=native#text/plain
src/emu/bus/a1bus/a1cassette.h svneol=native#text/plain
src/emu/bus/a1bus/a1cffa.c svneol=native#text/plain
src/emu/bus/a1bus/a1cffa.h svneol=native#text/plain
src/emu/bus/a2bus/a2alfam2.c svneol=native#text/plain
src/emu/bus/a2bus/a2alfam2.h svneol=native#text/plain
src/emu/bus/a2bus/a2applicard.c svneol=native#text/plain

156
src/emu/bus/a1bus/a1cffa.c Normal file
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@ -0,0 +1,156 @@
/*********************************************************************
a1cffa.c
Rich Dreher's Compact Flash for Apple I
*********************************************************************/
#include "a1cffa.h"
/***************************************************************************
PARAMETERS
***************************************************************************/
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
#define CFFA_ROM_REGION "cffa_rom"
#define CFFA_ATA_TAG "cffa_ata"
const device_type A1BUS_CFFA = &device_creator<a1bus_cffa_device>;
MACHINE_CONFIG_FRAGMENT( cffa )
MCFG_ATA_INTERFACE_ADD(CFFA_ATA_TAG, ata_devices, "hdd", NULL, false)
MACHINE_CONFIG_END
ROM_START( cffa )
ROM_REGION(0x2000, CFFA_ROM_REGION, 0)
ROM_LOAD ("cffaromv1.1.bin", 0x0000, 0x1fe0, CRC(bf6b55ad) SHA1(6a290be18485a06f243a3561c4e01be5aafa4bfe) )
ROM_END
//-------------------------------------------------
// machine_config_additions - device-specific
// machine configurations
//-------------------------------------------------
machine_config_constructor a1bus_cffa_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME( cffa );
}
const rom_entry *a1bus_cffa_device::device_rom_region() const
{
return ROM_NAME( cffa );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
a1bus_cffa_device::a1bus_cffa_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, A1BUS_CFFA, "CFFA Compact Flash for Apple I", tag, owner, clock, "cffa1", __FILE__),
device_a1bus_card_interface(mconfig, *this),
m_ata(*this, CFFA_ATA_TAG)
{
}
a1bus_cffa_device::a1bus_cffa_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
device_t(mconfig, type, name, tag, owner, clock, shortname, source),
device_a1bus_card_interface(mconfig, *this),
m_ata(*this, CFFA_ATA_TAG)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void a1bus_cffa_device::device_start()
{
set_a1bus_device();
astring tempstring;
m_rom = device().machine().root_device().memregion(this->subtag(tempstring, CFFA_ROM_REGION))->base();
install_device(0xafe0, 0xafff, read8_delegate(FUNC(a1bus_cffa_device::cffa_r), this), write8_delegate(FUNC(a1bus_cffa_device::cffa_w), this));
install_bank(0x9000, 0xafdf, 0, 0, (char *)"bank_cffa1", m_rom);
save_item(NAME(m_lastdata));
save_item(NAME(m_writeprotect));
}
void a1bus_cffa_device::device_reset()
{
m_writeprotect = false;
m_lastdata = 0;
}
READ8_MEMBER(a1bus_cffa_device::cffa_r)
{
switch (offset & 0xf)
{
case 0x0:
return m_lastdata>>8;
case 0x3:
m_writeprotect = false;
break;
case 0x4:
m_writeprotect = true;
break;
case 0x8:
m_lastdata = m_ata->read_cs0(space, (offset & 0xf) - 8, 0xff);
return m_lastdata & 0x00ff;
case 0x9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
case 0xe:
case 0xf:
return m_ata->read_cs0(space, (offset & 0xf) - 8, 0xff);
}
return 0xff;
}
WRITE8_MEMBER(a1bus_cffa_device::cffa_w)
{
switch (offset & 0xf)
{
case 0x0:
m_lastdata &= 0x00ff;
m_lastdata |= data<<8;
break;
case 0x3:
m_writeprotect = false;
break;
case 0x4:
m_writeprotect = true;
break;
case 0x8:
m_ata->write_cs0(space, (offset & 0xf) - 8, data, 0xff);
break;
case 0x9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
case 0xe:
case 0xf:
m_ata->write_cs0(space, (offset & 0xf) - 8, data, 0xff);
break;
}
}

51
src/emu/bus/a1bus/a1cffa.h Normal file
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@ -0,0 +1,51 @@
/*********************************************************************
a1cffa.h
Rich Dreher's Compact Flash for Apple I
*********************************************************************/
#ifndef __A1BUS_CFFA__
#define __A1BUS_CFFA__
#include "emu.h"
#include "a1bus.h"
#include "machine/ataintf.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class a1bus_cffa_device:
public device_t,
public device_a1bus_card_interface
{
public:
// construction/destruction
a1bus_cffa_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
a1bus_cffa_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
virtual const rom_entry *device_rom_region() const;
required_device<ata_interface_device> m_ata;
DECLARE_READ8_MEMBER(cffa_r);
DECLARE_WRITE8_MEMBER(cffa_w);
protected:
virtual void device_start();
virtual void device_reset();
private:
UINT8 *m_rom;
UINT16 m_lastdata;
bool m_writeprotect;
};
// device type definition
extern const device_type A1BUS_CFFA;
#endif /* __A1BUS_CFFA__ */

1
src/emu/bus/bus.mak
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@ -1077,5 +1077,6 @@ ifneq ($(filter A1BUS,$(BUSES)),)
OBJDIRS += $(BUSOBJ)/a1bus
BUSOBJS += $(BUSOBJ)/a1bus/a1bus.o
BUSOBJS += $(BUSOBJ)/a1bus/a1cassette.o
BUSOBJS += $(BUSOBJ)/a1bus/a1cffa.o
endif

2
src/mess/drivers/apple1.c
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@ -133,6 +133,7 @@ When the prompt returns, press Stop.
#include "bus/a1bus/a1bus.h"
#include "bus/a1bus/a1cassette.h"
#include "bus/a1bus/a1cffa.h"
/* port i/o functions */
@ -257,6 +258,7 @@ INPUT_PORTS_END
static SLOT_INTERFACE_START(apple1_cards)
SLOT_INTERFACE("cassette", A1BUS_CASSETTE)
SLOT_INTERFACE("cffa", A1BUS_CFFA)
SLOT_INTERFACE_END
/* machine definition */