/
freedom120.cpp
154 lines (112 loc) · 4.04 KB
/
freedom120.cpp
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// license: BSD-3-Clause
// copyright-holders: Dirk Best
/****************************************************************************
Liberty Electronics Freedom 120/Aspect 100
Serial terminal
Hardware:
- Z0840006PSC Z80 CPU
- XTAL 32 Mhz and 48 MHz
- MC2674B4P
- 27C256 labeled "G212011 6A22"
- M27C512 labeled "M2ASP11 C368"
- KM6264BL-7L x2 (next to ROM)
- MS6264L-70PC
- V61C16P70L x2
- SCN2681AC1N40
- XTAL 3.6864 MHz
- PAL labeled "10A8"
- PAL labeled "PL10251"
- PAL labeled "PL10151"
- Motorola IC "LS38BC712PP01"
- Battery
External:
- Serial port labeled "Main Port"
- Parallel port labeled "Parallel Port"
- Keyboard port
Status: Skeleton driver
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "emupal.h"
#include "screen.h"
namespace {
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class freedom120_state : public driver_device
{
public:
freedom120_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu")
{ }
void freedom120(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
required_device<z80_device> m_maincpu;
void mem_map(address_map &map);
void io_map(address_map &map);
};
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
void freedom120_state::mem_map(address_map &map)
{
map(0x0000, 0xffff).rom();
}
void freedom120_state::io_map(address_map &map)
{
}
//**************************************************************************
// VIDEO EMULATION
//**************************************************************************
static const gfx_layout char_layout =
{
8, 16,
RGN_FRAC(1, 1),
1,
{ 0 },
{ STEP8(0, 1) },
{ 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("chargen", 0, char_layout, 0, 1)
GFXDECODE_END
//**************************************************************************
// MACHINE EMULATION
//**************************************************************************
void freedom120_state::machine_start()
{
}
void freedom120_state::machine_reset()
{
}
//**************************************************************************
// MACHINE DEFINTIONS
//**************************************************************************
void freedom120_state::freedom120(machine_config &config)
{
Z80(config, m_maincpu, 48_MHz_XTAL / 8); // unknown clock
m_maincpu->set_addrmap(AS_PROGRAM, &freedom120_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &freedom120_state::io_map);
PALETTE(config, "palette", palette_device::MONOCHROME);
GFXDECODE(config, "gfxdecode", "palette", chars);
}
//**************************************************************************
// ROM DEFINITIONS
//**************************************************************************
ROM_START( free120 )
ROM_REGION(0x10000, "maincpu", 0)
ROM_LOAD("m2asp11.u241", 0x0000, 0x10000, CRC(c079f471) SHA1(4864660c9a4470a4a444943fe89d91dc44297c39))
ROM_REGION(0x8000, "chargen", 0)
ROM_LOAD("g212011.u242", 0x0000, 0x8000, CRC(18e6700f) SHA1(fdf22d11468f978661005be115ec0bcc043519fc))
ROM_END
} // anonymous namespace
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1993, free120, 0, 0, freedom120, 0, freedom120_state, empty_init, "Liberty Electronics", "Freedom 120/Aspect 100", MACHINE_IS_SKELETON )