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New working console

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-------------------
Z80 TV Game System [Robbbert]
This commit is contained in:
Robbbert 2015-06-13 02:46:37 +10:00
parent 93b52fe579
commit f0a189b9de
3 changed files with 135 additions and 0 deletions
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1
scripts/target/mame/mess.lua
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@ -2681,6 +2681,7 @@ files {
MAME_DIR .. "src/mess/drivers/terak.c",
MAME_DIR .. "src/mess/drivers/ti630.c",
MAME_DIR .. "src/mess/drivers/tsispch.c",
MAME_DIR .. "src/mess/drivers/tvgame.c",
MAME_DIR .. "src/mess/drivers/unistar.c",
MAME_DIR .. "src/mess/drivers/v6809.c",
MAME_DIR .. "src/mess/drivers/vector4.c",

1
src/mame/mess.lst
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@ -2685,3 +2685,4 @@ leapstertv
excali64
bitgrpha
bitgrphb
tvgame

133
src/mess/drivers/tvgame.c Normal file
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@ -0,0 +1,133 @@
// license:BSD-3-Clause
// copyright-holders: Robbbert
/***************************************************************************
Homebrew Z80-based TV Game computer by unknown person
http://w01.tp1.jp/~a571632211/z80tvgame/index.html
2015-06-12 Driver by Robbbert
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/i8255.h"
#include "sound/speaker.h"
class tvgame_state : public driver_device
{
public:
tvgame_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_speaker(*this, "speaker")
, m_p_videoram(*this, "videoram")
{ }
DECLARE_WRITE8_MEMBER(speaker_w);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
private:
required_device<cpu_device> m_maincpu;
required_device<speaker_sound_device> m_speaker;
required_shared_ptr<UINT8> m_p_videoram;
};
static ADDRESS_MAP_START( tvgame_mem, AS_PROGRAM, 8, tvgame_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE( 0x0000, 0x7fff ) AM_ROM
AM_RANGE( 0x8000, 0xbfff ) AM_RAM
AM_RANGE( 0xc000, 0xdfff ) AM_RAM AM_SHARE("videoram")
ADDRESS_MAP_END
static ADDRESS_MAP_START( tvgame_io, AS_IO, 8, tvgame_state )
ADDRESS_MAP_GLOBAL_MASK(3)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE( 0x0000, 0x0003) AM_DEVREADWRITE("ppi", i8255_device, read, write)
ADDRESS_MAP_END
/* Input ports */
INPUT_PORTS_START( tvgame )
PORT_START("LINE0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
WRITE8_MEMBER( tvgame_state::speaker_w )
{
m_speaker->level_w(BIT(data, 0));
}
UINT32 tvgame_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
UINT8 y,gfx;
UINT16 sy=0,ma=241,x;
for (y = 0; y < 213; y++)
{
UINT16 *p = &bitmap.pix16(sy++);
for (x = ma; x < ma+27; x++)
{
gfx = m_p_videoram[x];
/* Display a scanline of a character (8 pixels) */
*p++ = BIT(gfx, 0);
*p++ = BIT(gfx, 1);
*p++ = BIT(gfx, 2);
*p++ = BIT(gfx, 3);
*p++ = BIT(gfx, 4);
*p++ = BIT(gfx, 5);
*p++ = BIT(gfx, 6);
*p++ = BIT(gfx, 7);
}
ma+=30;
}
return 0;
}
static MACHINE_CONFIG_START( tvgame, tvgame_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(tvgame_mem)
MCFG_CPU_IO_MAP(tvgame_io)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_UPDATE_DRIVER(tvgame_state, screen_update)
MCFG_SCREEN_SIZE(216, 213)
MCFG_SCREEN_VISIBLE_AREA(0, 215, 0, 212)
MCFG_SCREEN_PALETTE("palette")
MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
// Devices
MCFG_DEVICE_ADD("ppi", I8255, 0)
MCFG_I8255_IN_PORTA_CB(IOPORT("LINE0"))
MCFG_I8255_OUT_PORTC_CB(WRITE8(tvgame_state, speaker_w))
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( tvgame )
ROM_REGION( 0x8000, "maincpu", 0 )
ROM_LOAD( "tvgame_all.ppi", 0x0000, 0x8000, CRC(b61d17bd) SHA1(bb92d6679370fc31d67cc334807d88d7288c7cfa) )
ROM_REGION(0x1000, "proms", 0)
ROM_LOAD( "video32.bin", 0x0000, 0x1000, CRC(516006e3) SHA1(942b31acccf833cd722cbcb739eb87673dc633d7) )
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
CONS( 2011, tvgame, 0, 0, tvgame, tvgame, driver_device, 0, "unknown", "Z80 TV Game System", 0 )