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cexpert: update notes

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hap 2025-05-14 13:49:18 +02:00
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src/mame/novag/cexpert.cpp
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@ -9,6 +9,7 @@ The u3 ROM contains the following message (it's David Kittinger's company):
Copyright (c) 1985, Intelligent Heuristic Programming, Inc
Hardware notes:
- PCB label: 100045
- R65C02P4 @ 5MHz (10MHz XTAL)
- 2*2KB RAM(NEC D449C-3), 2*32KB ROM
- 64+8 leds, magnet sensors chessboard
@ -16,8 +17,10 @@ Hardware notes:
I/O is again similar to supercon
The first version was on a modified Super Constellation PCB. 4MHz CPU speed,
and 4 TMM27128 with identical ROM contents as the newer version.
The 1st version had a R65C02P3 @ 4MHz (8MHz XTAL). IRQ and beeper via the XTAL
instead of 555 timer, but nearly the same frequency. The 4MHz version was also
seen on a modified Super Constellation PCB, with 4 TMM27128 and identical ROM
contents as the newer version.
*******************************************************************************/