- Merge driver with goldnpkr.cpp source to get working sound (graphics and sound should be identical)
- Add version numbers to set names
- Promote megadpkrb to WORKING (with one caveat)
What works:
* HP85A machine with 16K of RAM
* Capricorn CPU works
* Keyboard works (with minor issues)
* CRT text / graphics modes work (correct speed is not emulated yet so service ROM complaints)
* BASIC is usable
What is missing (and I'll have hopefully working soon):
* HW timers
* Beeper
* Integral printer
* DC100 cassette drive
* Extension ROMs
* I/O modules (especially the HPIB interface so that we can hook up floppy drives)
* Other models in the family (e.g. HP86)
create a uPD78C11 derived CPU type for this purpose, with internal ROM map
use internal ROM map for other uPD78C10 chips as it's always present.
add missing NO_DUMP definitions to various games using C-Chips with correct size etc.
pump megablast through the device code as really all it ever does is bank the c-chip window and test the RAM.
* Implemented front panel mode switches/LEDs and reset switch
* Added skeleton bus for "universal" slots and connected control lines
(nw) Default keyboard mapping is annoying because left shift, Z and X
are used both for typing into the TTY and switching program bank. You're
better off changing the mapping to make it less annoying or using a
socket and talking to it with telnet.
* Renamed to MCS-40.
* Emulated 8-clock instruction cycle, interruptible at any point.
* Converted TEST input to an input line.
* Added SYNC and CM output lines.
* Added support for 4040 CY output, logical operations, extended registers, ROM banking and disassembly.
* Made I/O space mapping more flexible to support the variety of peripherals available.
* Notable missing features are 4040 interrupt and halt, and "program memory" space.
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Spirit of 76 [PinMAME]
New not working clone
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Black Knight 2000 (PF-1) [PinMAME]
* Tromba (trumpet) sound is not working - requires Schmitt trigger device
* Connecting cassa (bass drum) swamps other instruments so it's disconnected for now
* Mixing melody sound with speech/SFX is not done in netlist (should be)
* Relative levels of melody/speech/SFX are probably still wrong
(nw) A good test case for this is the Money Money driver (monymony).
There's a bit of buzzing on this one as well. The problem with the
cassa could be caused by running into non-ideal characteristics of opams
again (the LM3900 seems to ignore the V+ value supplied to it). When
the netlist library gets Schmitt trigger support, the tromba can be
completed. Unfortunately, the tromba is a key part of the
characteristic sound of these boards, so you really notice when it's
lacking.
(nw) It doesn't work quite right yet. The "Hammer" and "Pest" sounds
are generated by free-running 555/556 timers and gated with LM324
applifiers. For whatever reason, the netlist system produces a kind of
buzzing from the "Hammer" circuit when it's supposed to be suppressed,
and it doesn't think the pest sound should be suppressed completely so
you can always hear it at a low level in the background. The "Cheese"
circuit is a bit weird - either they're using the base-emitter junction
of a 2SC945 as a signal diode, or there's an error in the schematic
(collector is shown unconnected). Connecting this part of the circuit
causes the netlist system to hang, so R2/R3/C8/Q2 are not connected for
now.
