mirror of
https://github.com/holub/mame
synced 2025-04-19 23:12:11 +03:00
apple2: Support for the Stellation Q-68 and Q-68 Plus 68008 coprocessor cards. [Rob Justice, R. Belmont]
This commit is contained in:
arbee
parent
a263bf5bc4
commit
7e5ea52797
@ -2489,6 +2489,8 @@ if (BUSES["A2BUS"]~=null) then
|
||||
MAME_DIR .. "src/devices/bus/a2bus/nippelclock.h",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/pc_xporter.cpp",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/pc_xporter.h",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/q68.cpp",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/q68.h",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/ramcard128k.cpp",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/ramcard128k.h",
|
||||
MAME_DIR .. "src/devices/bus/a2bus/ramcard16k.cpp",
|
||||
|
||||
244
src/devices/bus/a2bus/q68.cpp
Normal file
244
src/devices/bus/a2bus/q68.cpp
Normal file
@ -0,0 +1,244 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Rob Justice, R. Belmont
|
||||
/*********************************************************************
|
||||
|
||||
q68.cpp
|
||||
|
||||
Implementation of the Stellation Q-68 68008 card
|
||||
|
||||
Memory Map
|
||||
68008 0x00000-0x0ffff -> Apple II memory
|
||||
68008 0x10000-0x17fff -> Onboard EPROM, 8k (expandable to 32k)
|
||||
68008 0x18000-0x1ffff -> Onboard RAM, 8K (expandable to 32k?)
|
||||
68008 0x20000-0xfffff -> Open, for options via expansion connector
|
||||
|
||||
Apple II Memory
|
||||
68008 0x00000-0x003ff -> 6502 0x0800-0x0bff
|
||||
68008 0x00400-0x007ff -> 6502 0x0400-0x07ff
|
||||
68008 0x00800-0x00bff -> 6502 0x0000-0x03ff
|
||||
68008 0x00c00-0x0ffff -> 6502 0x0c00-0xffff
|
||||
|
||||
0xc0n1 - Turn card on
|
||||
0xc0n3 - Interrupt card
|
||||
0xc0n0 - Turn card off
|
||||
|
||||
Also includes the Q-68 plus version made by nanja.info
|
||||
This has a full 1MB of ram on board and slight update to the memory map
|
||||
Memory Map
|
||||
68008 0x00000-0x0ffff -> Apple II memory
|
||||
68008 0x10000-0x11fff -> Onboard EPROM, 8k
|
||||
68008 0x12000-0x1ffff -> Onboard RAM, ~1MB
|
||||
|
||||
Todo:
|
||||
Implement Watchdog timer. Only relevant to Q-68 and bus errors for non existant memory access
|
||||
Speed of 6502 should be slower when 68008 is enabled and accessing AppleII memory space
|
||||
Speed of 68008 should be slower when access the Apple II memory space
|
||||
|
||||
(reference: http://mirrors.apple2.org.za/ftp.apple.asimov.net/unsorted/QPAK-68%20Users%20Guide.pdf )
|
||||
|
||||
*********************************************************************/
|
||||
|
||||
#include "q68.h"
|
||||
#include "cpu/m68000/m68000.h"
|
||||
|
||||
/***************************************************************************
|
||||
PARAMETERS
|
||||
***************************************************************************/
|
||||
|
||||
//**************************************************************************
|
||||
// GLOBAL VARIABLES
|
||||
//**************************************************************************
|
||||
|
||||
DEFINE_DEVICE_TYPE(A2BUS_Q68, a2bus_q68_device, "q68", "Stellation Two Q-68")
|
||||
DEFINE_DEVICE_TYPE(A2BUS_Q68PLUS, a2bus_q68plus_device, "q68plus", "Stellation Two Q-68 Plus")
|
||||
|
||||
void a2bus_q68_device::m68008_mem(address_map &map)
|
||||
{
|
||||
map(0x00000, 0x0ffff).rw(FUNC(a2bus_68k_device::dma_r), FUNC(a2bus_68k_device::dma_w));
|
||||
map(0x10000, 0x11fff).mirror(0x6000).rom(); //8k debug rom
|
||||
map(0x18000, 0x19fff).mirror(0x6000).ram(); //8k ram
|
||||
}
|
||||
|
||||
void a2bus_q68plus_device::m68008_mem(address_map &map)
|
||||
{
|
||||
map(0x00000, 0x0ffff).rw(FUNC(a2bus_68k_device::dma_r), FUNC(a2bus_68k_device::dma_w));
|
||||
map(0x10000, 0x11fff).rom(); // 8k debug rom
|
||||
map(0x12000, 0xfffff).ram(); // 1 MB of RAM
|
||||
}
|
||||
|
||||
ROM_START( q68 )
|
||||
ROM_REGION(0x100000, "m68008", 0)
|
||||
ROM_LOAD( "debug1.04-caf4.bin", 0x10000, 0x02000, CRC(6bead126) SHA1(e46d5e8256faece3723e9040f78fd1c8edb3ee0e) )
|
||||
ROM_END
|
||||
|
||||
/***************************************************************************
|
||||
FUNCTION PROTOTYPES
|
||||
***************************************************************************/
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_add_mconfig - add device configuration
|
||||
//-------------------------------------------------
|
||||
|
||||
void a2bus_q68_device::device_add_mconfig(machine_config &config)
|
||||
{
|
||||
M68008(config, m_m68008, 1021800*7); // M68008 runs at 7.16 MHz
|
||||
m_m68008->set_addrmap(AS_PROGRAM, &a2bus_q68_device::m68008_mem);
|
||||
}
|
||||
|
||||
void a2bus_q68plus_device::device_add_mconfig(machine_config &config)
|
||||
{
|
||||
M68008(config, m_m68008, 1021800*7); // M68008 runs at 7.16 MHz
|
||||
m_m68008->set_addrmap(AS_PROGRAM, &a2bus_q68plus_device::m68008_mem);
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_rom_region - device-specific ROMs
|
||||
//-------------------------------------------------
|
||||
|
||||
const tiny_rom_entry *a2bus_68k_device::device_rom_region() const
|
||||
{
|
||||
return ROM_NAME( q68 );
|
||||
}
|
||||
|
||||
//**************************************************************************
|
||||
// LIVE DEVICE
|
||||
//**************************************************************************
|
||||
|
||||
a2bus_68k_device::a2bus_68k_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
|
||||
: device_t(mconfig, type, tag, owner, clock)
|
||||
, device_a2bus_card_interface(mconfig, *this)
|
||||
, m_m68008(*this, "m68008")
|
||||
, m_bEnabled(false)
|
||||
{
|
||||
}
|
||||
|
||||
a2bus_q68_device::a2bus_q68_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
|
||||
a2bus_68k_device(mconfig, A2BUS_Q68, tag, owner, clock)
|
||||
{
|
||||
}
|
||||
|
||||
a2bus_q68plus_device::a2bus_q68plus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
|
||||
a2bus_68k_device(mconfig, A2BUS_Q68PLUS, tag, owner, clock)
|
||||
{
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_start - device-specific startup
|
||||
//-------------------------------------------------
|
||||
|
||||
void a2bus_68k_device::device_start()
|
||||
{
|
||||
save_item(NAME(m_bEnabled));
|
||||
}
|
||||
|
||||
void a2bus_68k_device::device_reset()
|
||||
{
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
|
||||
m_bEnabled=false;
|
||||
}
|
||||
|
||||
uint8_t a2bus_68k_device::read_c0nx(uint8_t offset)
|
||||
{
|
||||
switch (offset & 0x3)
|
||||
{
|
||||
case 0:
|
||||
case 2:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
|
||||
m_bEnabled=false;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
|
||||
m_bEnabled=true;
|
||||
break;
|
||||
|
||||
case 3:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
|
||||
m_bEnabled=true;
|
||||
m_m68008->pulse_input_line(M68K_IRQ_7, attotime::zero); //work around, processor status lines + logic should clear nmi.
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void a2bus_68k_device::write_c0nx(uint8_t offset, uint8_t data)
|
||||
{
|
||||
switch (offset & 0x3)
|
||||
{
|
||||
case 0:
|
||||
case 2:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
|
||||
m_bEnabled=false;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
|
||||
m_bEnabled=true;
|
||||
break;
|
||||
|
||||
case 3:
|
||||
m_m68008->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
|
||||
m_m68008->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
|
||||
m_bEnabled=true;
|
||||
m_m68008->pulse_input_line(M68K_IRQ_7, attotime::zero); //work around, processor status lines should clear nmi.
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t a2bus_68k_device::dma_r(offs_t offset)
|
||||
{
|
||||
if(m_bEnabled)
|
||||
{
|
||||
if (offset <= 0x03ff) //0x0000-0x03ff
|
||||
{
|
||||
return slot_dma_read(offset+0x800);
|
||||
}
|
||||
else if (offset <= 0x07ff) //0x0400-0x07ff
|
||||
{
|
||||
return slot_dma_read(offset);
|
||||
}
|
||||
else if (offset <= 0x0bff) //0x0800-0x0bff
|
||||
{
|
||||
return slot_dma_read(offset-0x800);
|
||||
}
|
||||
else if (offset <= 0xffff) //0x0c00-0xffff
|
||||
{
|
||||
return slot_dma_read(offset);
|
||||
}
|
||||
}
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// dma_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
void a2bus_68k_device::dma_w(offs_t offset, uint8_t data)
|
||||
{
|
||||
if(m_bEnabled)
|
||||
{
|
||||
if (offset <= 0x03ff) //0x0000-0x03ff
|
||||
{
|
||||
return slot_dma_write(offset+0x800, data);
|
||||
}
|
||||
else if (offset <= 0x07ff) //0x0400-0x07ff
|
||||
{
|
||||
return slot_dma_write(offset, data);
|
||||
}
|
||||
else if (offset <= 0x0bff) //0x0800-0x0bff
|
||||
{
|
||||
return slot_dma_write(offset-0x800, data);
|
||||
}
|
||||
else if (offset <= 0xffff) //0x0c00-0xffff
|
||||
{
|
||||
return slot_dma_write(offset, data);
|
||||
}
|
||||
}
|
||||
}
|
||||
77
src/devices/bus/a2bus/q68.h
Normal file
77
src/devices/bus/a2bus/q68.h
Normal file
@ -0,0 +1,77 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Rob Justice, R. Belmont
|
||||
/*********************************************************************
|
||||
|
||||
q68.h
|
||||
|
||||
Implementation of the Stellation Q-68 68008 card
|
||||
|
||||
*********************************************************************/
|
||||
|
||||
#ifndef MAME_BUS_A2BUS_Q68_H
|
||||
#define MAME_BUS_A2BUS_Q68_H
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "a2bus.h"
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
class a2bus_68k_device:
|
||||
public device_t,
|
||||
public device_a2bus_card_interface
|
||||
{
|
||||
friend class a2bus_q68_device;
|
||||
friend class a2bus_q68plus_device;
|
||||
|
||||
protected:
|
||||
a2bus_68k_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override;
|
||||
virtual const tiny_rom_entry *device_rom_region() const override;
|
||||
|
||||
// overrides of standard a2bus slot functions
|
||||
virtual uint8_t read_c0nx(uint8_t offset) override;
|
||||
virtual void write_c0nx(uint8_t offset, uint8_t data) override;
|
||||
virtual bool take_c800() override { return false; }
|
||||
|
||||
required_device<cpu_device> m_m68008;
|
||||
|
||||
uint8_t dma_r(offs_t offset);
|
||||
void dma_w(offs_t offset, uint8_t data);
|
||||
|
||||
private:
|
||||
bool m_bEnabled;
|
||||
};
|
||||
|
||||
class a2bus_q68_device : public a2bus_68k_device
|
||||
{
|
||||
public:
|
||||
a2bus_q68_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
//virtual const tiny_rom_entry *device_rom_region() const override;
|
||||
|
||||
void m68008_mem(address_map &map);
|
||||
};
|
||||
|
||||
class a2bus_q68plus_device : public a2bus_68k_device
|
||||
{
|
||||
public:
|
||||
a2bus_q68plus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
//virtual const tiny_rom_entry *device_rom_region() const override;
|
||||
|
||||
void m68008_mem(address_map &map);
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
DECLARE_DEVICE_TYPE(A2BUS_Q68, a2bus_q68_device)
|
||||
DECLARE_DEVICE_TYPE(A2BUS_Q68PLUS, a2bus_q68plus_device)
|
||||
|
||||
#endif // MAME_BUS_A2BUS_Q68_H
|
||||
@ -97,6 +97,7 @@ II Plus: RAM options reduced to 16/32/48 KB.
|
||||
#include "bus/a2bus/transwarp.h"
|
||||
#include "bus/a2bus/uniprint.h"
|
||||
#include "bus/a2bus/booti.h"
|
||||
#include "bus/a2bus/q68.h"
|
||||
|
||||
#include "bus/a2gameio/gameio.h"
|
||||
|
||||
@ -1345,6 +1346,8 @@ static void apple2_cards(device_slot_interface &device)
|
||||
device.option_add("uniprint", A2BUS_UNIPRINT); /* Videx Uniprint parallel printer card */
|
||||
device.option_add("ccs7710", A2BUS_CCS7710); /* California Computer Systems Model 7710 Asynchronous Serial Interface */
|
||||
device.option_add("booti", A2BUS_BOOTI); /* Booti Card */
|
||||
device.option_add("q68", A2BUS_Q68); /* Stellation Q68 68000 card */
|
||||
device.option_add("q68plus", A2BUS_Q68PLUS); /* Stellation Q68 Plus 68000 card */
|
||||
}
|
||||
|
||||
void apple2_state::apple2_common(machine_config &config)
|
||||
|
||||
@ -179,6 +179,7 @@ MIG RAM page 2 $CE02 is the speaker/slot bitfield and $CE03 is the paddle/accele
|
||||
#include "bus/a2bus/laser128.h"
|
||||
#include "bus/a2bus/mouse.h"
|
||||
#include "bus/a2bus/pc_xporter.h"
|
||||
#include "bus/a2bus/q68.h"
|
||||
#include "bus/a2bus/sider.h"
|
||||
#include "bus/a2bus/ssbapple.h"
|
||||
#include "bus/a2bus/ssprite.h"
|
||||
@ -4702,6 +4703,8 @@ static void apple2_cards(device_slot_interface &device)
|
||||
device.option_add("ccs7710", A2BUS_CCS7710); /* California Computer Systems Model 7710 Asynchronous Serial Interface */
|
||||
device.option_add("booti", A2BUS_BOOTI); /* Booti Card */
|
||||
device.option_add("lancegs", A2BUS_LANCEGS); /* ///SHH SYSTEME LANceGS Card */
|
||||
device.option_add("q68", A2BUS_Q68); /* Stellation Q68 68000 card */
|
||||
device.option_add("q68plus", A2BUS_Q68PLUS); /* Stellation Q68 Plus 68000 card */
|
||||
}
|
||||
|
||||
static void apple2eaux_cards(device_slot_interface &device)
|
||||
|
||||
@ -119,6 +119,7 @@
|
||||
#include "bus/a2bus/laser128.h"
|
||||
#include "bus/a2bus/mouse.h"
|
||||
//#include "bus/a2bus/pc_xporter.h"
|
||||
#include "bus/a2bus/q68.h"
|
||||
#include "bus/a2bus/ramcard16k.h"
|
||||
//#include "bus/a2bus/ramfast.h"
|
||||
#include "bus/a2bus/sider.h"
|
||||
@ -4829,6 +4830,8 @@ static void apple2_cards(device_slot_interface &device)
|
||||
device.option_add("ccs7710", A2BUS_CCS7710); /* California Computer Systems Model 7710 Asynchronous Serial Interface */
|
||||
device.option_add("booti", A2BUS_BOOTI); /* Booti Card */
|
||||
device.option_add("lancegs", A2BUS_LANCEGS); /* ///SHH SYSTEME LANceGS Card */
|
||||
device.option_add("q68", A2BUS_Q68); /* Stellation Q68 68000 card */
|
||||
device.option_add("q68plus", A2BUS_Q68PLUS); /* Stellation Q68 Plus 68000 card */
|
||||
}
|
||||
|
||||
void apple2gs_state::apple2gs(machine_config &config)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user