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dialog80: Small update (nw)

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This commit is contained in:
AJR 2018-01-05 21:05:49 -05:00
parent bb2bcb1b56
commit fac8ef99b9
1 changed files with 12 additions and 4 deletions
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16
src/mame/drivers/ampex.cpp
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@ -1,16 +1,20 @@
// license:BSD-3-Clause
// copyright-holders:
/***********************************************************************************************************************************
/*******************************************************************************
2017-11-05 Skeleton
Ampex Dialogue 80 terminal
Chips: CRT-5037, COM8017, SMC5016-5, MK3880N (Z80)
Chips: CRT-5037, COM8017, SMC (COM)5016-5, MK3880N (Z80), SN74LS424N (TIM8224)
Crystals: 4.9152, 23.814
Other: Beeper, 5x 10sw-dips.
************************************************************************************************************************************/
The program code seems to have been designed with a 8080 CPU in mind, using no
Z80-specific opcodes. This impression is reinforced by the IC types present on
the PCB, which go so far as to include the standard 8224 clock generator.
*******************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
@ -57,7 +61,7 @@ static INPUT_PORTS_START( ampex )
INPUT_PORTS_END
static MACHINE_CONFIG_START( ampex )
MCFG_CPU_ADD("maincpu", Z80, 2'000'000) // no idea of clock.
MCFG_CPU_ADD("maincpu", Z80, XTAL_23_814MHz / 9) // clocked by 8224?
MCFG_CPU_PROGRAM_MAP(mem_map)
MCFG_SCREEN_ADD("screen", RASTER)
@ -81,6 +85,10 @@ ROM_START( dialog80 )
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "3505240-07.u69", 0x0000, 0x0800, CRC(838a16cb) SHA1(4301324b9fe9453c2d277972f9464c4214c6793d) )
ROM_REGION( 0x0200, "proms", 0 ) // unknown TI 16-pin DIPs
ROM_LOAD( "417129-010.u16", 0x0000, 0x0100, NO_DUMP )
ROM_LOAD( "417129-010.u87", 0x0100, 0x0200, NO_DUMP )
ROM_END
COMP( 1980, dialog80, 0, 0, ampex, ampex, ampex_state, 0, "Ampex", "Dialogue 80", MACHINE_IS_SKELETON )