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mk1: add note (nw)

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hap 2019-02-11 23:01:17 +01:00
parent 102b4b11bf
commit e856dea0fb
1 changed files with 7 additions and 9 deletions
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16
src/mame/drivers/mk1.cpp
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@ -2,13 +2,15 @@
// copyright-holders:Peter Trauner // copyright-holders:Peter Trauner
/****************************************************************************** /******************************************************************************
mk1.c Driver file to handle emulation of the Novag/Videomaster Chess Champion MK I
Driver file to handle emulation of the Novag/Videomaster Chess Champion MK 1
by PeT mess@utanet.at 2000,2001. by PeT mess@utanet.at 2000,2001.
Minor updates by Wilbert Pol - 2007 Minor updates by Wilbert Pol - 2007
The MK I was a clone of Data Cash Systems's Compuchess (1977, one of the first
chess computers). The ROM is identical. DCS sued Novag Industries for copyright
infringement and somehow didn't manage to win the case.
Hardware descriptions: Hardware descriptions:
- An F8 3850 CPU accompanied by a 3853 memory interface - An F8 3850 CPU accompanied by a 3853 memory interface
Variations seen: Variations seen:
@ -77,9 +79,6 @@ private:
}; };
#define MAIN_CLOCK 1000000
READ8_MEMBER( mk1_state::mk1_f8_r ) READ8_MEMBER( mk1_state::mk1_f8_r )
{ {
uint8_t i, data = m_f8[offset]; uint8_t i, data = m_f8[offset];
@ -186,13 +185,13 @@ void mk1_state::machine_start()
MACHINE_CONFIG_START(mk1_state::mk1) MACHINE_CONFIG_START(mk1_state::mk1)
/* basic machine hardware */ /* basic machine hardware */
MCFG_DEVICE_ADD( "maincpu", F8, MAIN_CLOCK ) /* MK3850 */ MCFG_DEVICE_ADD( "maincpu", F8, 1000000 ) // MK3850
MCFG_DEVICE_PROGRAM_MAP(mk1_mem) MCFG_DEVICE_PROGRAM_MAP(mk1_mem)
MCFG_DEVICE_IO_MAP(mk1_io) MCFG_DEVICE_IO_MAP(mk1_io)
MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("f3853", f3853_device, int_acknowledge) MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("f3853", f3853_device, int_acknowledge)
config.m_minimum_quantum = attotime::from_hz(60); config.m_minimum_quantum = attotime::from_hz(60);
f3853_device &f3853(F3853(config, "f3853", MAIN_CLOCK)); f3853_device &f3853(F3853(config, "f3853", 1000000));
f3853.int_req_callback().set_inputline("maincpu", F8_INPUT_LINE_INT_REQ); f3853.int_req_callback().set_inputline("maincpu", F8_INPUT_LINE_INT_REQ);
/* video hardware */ /* video hardware */
@ -214,6 +213,5 @@ ROM_END
***************************************************************************/ ***************************************************************************/
// seams to be developed by mostek (MK)
// YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS // YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS
CONS( 1979, ccmk1, 0, 0, mk1, mk1, mk1_state, empty_init, "Novag", "Chess Champion: MK I", MACHINE_NO_SOUND_HW ) CONS( 1979, ccmk1, 0, 0, mk1, mk1, mk1_state, empty_init, "Novag", "Chess Champion: MK I", MACHINE_NO_SOUND_HW )