- NMI handler in separate opcode space so "direct handler can trivially go away" (as R. Belmont suggested)
- Use address_map_bank_device instead of dynamically splicing RAM and ROM banks into the map
- Split PPS-4 and PPS-4/2 device types; better explain and properly implement the difference
- Use callbacks for discrete input/output ports instead of fake memory addresses
- A17xx reads the address bus directly during I/O accesses
- Misc. chip documentation
Enable Corvus hard drives (Patched CP/M 1.x only, requires DRCDUTIL.TD0 driver disk from Maslin archive). See section CORVUS HARD DISK for patch instructions. DOS 2.x and CP/M 2.2 were once supported too, but drivers appear to be lost.
* separate gladiatr and ppking state classes
* hook up all four MCUs in greatgur
* eliminate tagmap lookups on input read
* this fixes coinage in greatgur
(nw) When starting for the first time, greatgur will come up with one
credit, and when doing an F3 reset it will randomly come up with one
credit or no credits. I think this has something to do with the dodgy
code for synchronising the master CPUs in the bootleg MCUs that depends
on how MAME initialises memory. (The MCU dumps we have come from a
bootleg set as far as I can ascertain.)
Fixes broken 144k + POKEY@450 emulation.
The patch provides reordered A78_TYPEA and A78_TYPE8, changing A78_TYPEA back to a constant of 5, fixing the hardware setup in a78_slot.cpp for 144k + POKEY@450 hardware. CPUWIZ formats linked to 144k TYPEA format (I.E. Bentley Bear's Crystal Quest, Donkey Kong PK-XM) will no longer crash as a result.
note, this came from a sample OTP chip that was purchased for testing / analysis, not one of the chips actually taken from a hng64 unit! It just ended up turning out to be the case that the sample chip had clearly been pulled from such a board at some point in the past. As a result it isn't clear if this is the driving, shooting or fighting MCU type.
contains the internal string "64Bit I/O Controller Ver 1.0 1997.06.29(C)SNK"
a CPU core is needed (I'll probably do a basic skeleton in the next few days.
