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/******************************************************************************************************
Motorola M68HC05EVS evaluation system
Chips:
Main board: XC68HC26P, R65C52P2, MS62256l-70PC, MS6264L-70PC, eprom. Xtal = 3.6864MHz
Emulator board: MC68C705P9CP, undumped 28-pin prom. Xtal = 4MHz
R65C52 = Dual ACIA with inbuilt baud rate divider, uses 8 addresses, uses the 3.6864MHz crystal
XC68HC26P = PPI (3 ports), uses 8 addresses.
2014-01-12 Skeleton driver
The rom is larger than the available address space, but not all of it is programmed. The code
ranges are 800-18FF,1FF0-1FFF. There must be a banking scheme in use.
Memory map guess
000-07F Stack (and user ram?)
080-0FF RAM (or devices?)
100-FFF ROM
ToDo:
- Everything
******************************************************************************************************/
#include "emu.h"
#include "cpu/m6805/m6805.h"
class m6805evs_state : public driver_device
{
public:
m6805evs_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
{ }
private:
required_device<cpu_device> m_maincpu;
virtual void machine_reset();
};
static ADDRESS_MAP_START( m6805evs_mem, AS_PROGRAM, 8, m6805evs_state )
AM_RANGE(0x0000, 0x00ff) AM_RAM
AM_RANGE(0x0100, 0x07ff) AM_ROM AM_REGION("roms", 0x1100)
AM_RANGE(0x0800, 0x0fef) AM_ROM AM_REGION("roms", 0x0800)
AM_RANGE(0x0ff0, 0x0fff) AM_ROM AM_REGION("roms", 0x1ff0)
ADDRESS_MAP_END
static INPUT_PORTS_START( m6805evs )
INPUT_PORTS_END
void m6805evs_state::machine_reset()
{
}
static MACHINE_CONFIG_START( m6805evs, m6805evs_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M68705, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(m6805evs_mem)
MACHINE_CONFIG_END
ROM_START(m6805evs)
ROM_REGION(0x2000, "roms", 0)
ROM_LOAD( "evsbug12.bin", 0x0000, 0x2000, CRC(8b581aef) SHA1(eacf425cc8a042085ccc4097cc61570b633b1e38) )
ROM_END
/***************************************************************************
Game driver(s)
***************************************************************************/
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME */
COMP( 1990, m6805evs, 0, 0, m6805evs, m6805evs, driver_device, 0, "Motorola", "M68HC05EVS", GAME_NOT_WORKING | GAME_NO_SOUND_HW )
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