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----------------------------------
Liberty Bell LB-4 [Al Kossow]
This commit is contained in:
Ryan Holtz 2018-11-16 07:03:00 +01:00
parent bdd62c0755
commit 77c4b7a551
4 changed files with 107 additions and 0 deletions
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1
scripts/target/mame/mess.lua
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@ -3764,6 +3764,7 @@ files {
MAME_DIR .. "src/mame/drivers/jade.cpp",
MAME_DIR .. "src/mame/drivers/jonos.cpp",
MAME_DIR .. "src/mame/drivers/kron.cpp",
MAME_DIR .. "src/mame/drivers/lb4.cpp",
MAME_DIR .. "src/mame/drivers/leapster.cpp",
MAME_DIR .. "src/mame/drivers/lee1214.cpp",
MAME_DIR .. "src/mame/drivers/learnwin.cpp",

102
src/mame/drivers/lb4.cpp Normal file
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@ -0,0 +1,102 @@
// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/****************************************************************************
Liberty Electronics LB-4 serial terminal
Known hardware:
- Motorola 6800 CPU
- Hitachi HD46505 (Motorola 6845-compatible) CRTC
- Hitachi HD46850 (Motorola 6850-compatible) ACIA
- Zilog Z8430 CTC
- 16.6698MHz Crystal
****************************************************************************/
#include "emu.h"
#include "cpu/m6800/m6800.h"
#include "machine/6850acia.h"
#include "machine/z80ctc.h"
#include "video/mc6845.h"
#include "screen.h"
#include "emupal.h"
#define MASTER_CLOCK 16.6698_MHz_XTAL
class lb4_state : public driver_device
{
public:
lb4_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_acia(*this, "acia")
, m_ctc(*this, "ctc")
, m_crtc(*this, "crtc")
, m_gfxdecode(*this, "gfxdecode")
, m_palette(*this, "palette")
{ }
void lb4(machine_config &config);
private:
void mem_map(address_map &map);
required_device<m6800_cpu_device> m_maincpu;
required_device<acia6850_device> m_acia;
required_device<z80ctc_device> m_ctc;
required_device<h46505_device> m_crtc;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
};
void lb4_state::mem_map(address_map &map)
{
map(0xe000, 0xffff).rom().region("maincpu", 0);
}
static const gfx_layout char_layout =
{
8,16,
RGN_FRAC(1,1),
1,
{ 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
8*16
};
static GFXDECODE_START(chars)
GFXDECODE_ENTRY("chars", 0, char_layout, 0, 1)
GFXDECODE_END
void lb4_state::lb4(machine_config &config)
{
// All dividers unknown/guessed
M6800(config, m_maincpu, MASTER_CLOCK / 16);
m_maincpu->set_addrmap(AS_PROGRAM, &lb4_state::mem_map);
ACIA6850(config, m_acia, MASTER_CLOCK / 128);
Z80CTC(config, m_ctc, MASTER_CLOCK / 4);
H46505(config, m_crtc, MASTER_CLOCK);
GFXDECODE(config, m_gfxdecode, m_palette, chars);
PALETTE(config, m_palette, 2).set_init("palette", FUNC(palette_device::palette_init_monochrome));
}
static INPUT_PORTS_START( lb4 )
INPUT_PORTS_END
ROM_START( lb4 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "u8.bin", 0xe000, 0x2000, CRC(2e375abc) SHA1(12ad1e49c5773c36c3a8d65845c9a50f9dec141f) )
ROM_REGION( 0x1000, "chars", 0 )
ROM_LOAD( "u32.bin", 0x0000, 0x1000, CRC(f6d86e87) SHA1(c0885e4a35095a730d760bf91a1cf4e8edd6a2bb) )
ROM_END
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 197?, lb4, 0, 0, lb4, lb4, lb4_state, empty_init, "Liberty Electronics", "LB-4", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )

3
src/mame/mame.lst
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@ -18028,6 +18028,9 @@ medlanes // [1977?]
@source:lb186.cpp
lb186 // Ampro Little Board/186
@source:lb4.cpp
lb4 // Liberty Electronics LB-4
@source:lbeach.cpp
lbeach // (c) 1979 Olympia / Seletron

1
src/mame/mess.flt
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@ -365,6 +365,7 @@ krz2000.cpp
kyocera.cpp
laser3k.cpp
lb186.cpp
lb4.cpp
lc80.cpp
lcmate2.cpp
leapster.cpp