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bbc: Added the Logotron Sprite Board on the 1MHz bus (for use with Logotron Logo).

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This commit is contained in:
Nigel Barnes 2019-01-25 23:12:15 +00:00
parent 2dc5fdec9b
commit 41f70ede78
4 changed files with 152 additions and 0 deletions
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2
scripts/src/bus.lua
View file

@ -357,6 +357,8 @@ if (BUSES["BBC_1MHZBUS"]~=null) then
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/m2000.h",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/opus3.cpp",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/opus3.h",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/sprite.cpp",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/sprite.h",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp",
MAME_DIR .. "src/devices/bus/bbc/1mhzbus/cfa3000opt.h",
}

3
src/devices/bus/bbc/1mhzbus/1mhzbus.cpp
View file

@ -142,6 +142,7 @@ WRITE8_MEMBER(bbc_1mhzbus_slot_device::jim_w)
//#include "graduate.h"
#include "beebsid.h"
//#include "prisma3.h"
#include "sprite.h"
#include "cfa3000opt.h"
@ -161,6 +162,7 @@ void bbc_1mhzbus_devices(device_slot_interface &device)
//device.option_add("graduate", BBC_GRADUATE); /* The Torch Graduate G400/G800 */
device.option_add("beebsid", BBC_BEEBSID); /* BeebSID */
//device.option_add("prisma3", BBC_PRISMA3); /* PRISMA-3 - Millipede 1989 */
device.option_add("sprite", BBC_SPRITE); /* Logotron Sprite Board */
}
void bbcm_1mhzbus_devices(device_slot_interface &device)
@ -183,5 +185,6 @@ void bbcm_1mhzbus_devices(device_slot_interface &device)
//device.option_add("graduate", BBC_GRADUATE); /* The Torch Graduate G400/G800 */
device.option_add("beebsid", BBC_BEEBSID); /* BeebSID */
//device.option_add("prisma3", BBC_PRISMA3); /* PRISMA-3 - Millipede 1989 */
device.option_add("sprite", BBC_SPRITE); /* Logotron Sprite Board */
device.option_add("cfa3000opt", CFA3000_OPT); /* Henson CFA 3000 Option Board */
}

98
src/devices/bus/bbc/1mhzbus/sprite.cpp Normal file
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@ -0,0 +1,98 @@
// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Logotron Sprite Board
**********************************************************************/
#include "emu.h"
#include "sprite.h"
#include "screen.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(BBC_SPRITE, bbc_sprite_device, "bbc_sprite", "Logotron Sprite Board");
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void bbc_sprite_device::device_add_mconfig(machine_config &config)
{
TMS9129(config, m_vdp, 10.738635_MHz_XTAL);
m_vdp->set_screen("screen");
m_vdp->set_vram_size(0x4000);
SCREEN(config, "screen", SCREEN_TYPE_RASTER);
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// bbc_sprite_device - constructor
//-------------------------------------------------
bbc_sprite_device::bbc_sprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, BBC_SPRITE, tag, owner, clock)
, device_bbc_1mhzbus_interface(mconfig, *this)
, m_vdp(*this, "vdp")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void bbc_sprite_device::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void bbc_sprite_device::device_reset()
{
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
READ8_MEMBER(bbc_sprite_device::fred_r)
{
uint8_t data = 0xff;
switch (offset)
{
case 0xa0:
data = m_vdp->vram_read();
break;
case 0xa2:
data = m_vdp->register_read();
break;
}
return data;
}
WRITE8_MEMBER(bbc_sprite_device::fred_w)
{
switch (offset)
{
case 0xa1:
m_vdp->vram_write(data);
break;
case 0xa3:
m_vdp->register_write(data);
break;
}
}

49
src/devices/bus/bbc/1mhzbus/sprite.h Normal file
View file

@ -0,0 +1,49 @@
// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Logotron Sprite Board
**********************************************************************/
#ifndef MAME_BUS_BBC_1MHZBUS_SPRITE_H
#define MAME_BUS_BBC_1MHZBUS_SPRITE_H
#include "1mhzbus.h"
#include "video/tms9928a.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class bbc_sprite_device:
public device_t,
public device_bbc_1mhzbus_interface
{
public:
// construction/destruction
bbc_sprite_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual DECLARE_READ8_MEMBER(fred_r) override;
virtual DECLARE_WRITE8_MEMBER(fred_w) override;
private:
required_device<tms9129_device> m_vdp;
};
// device type definition
DECLARE_DEVICE_TYPE(BBC_SPRITE, bbc_sprite_device);
#endif /* MAME_BUS_BBC_1MHZBUS_SPRITE_H */