Disassemblers are now independant classes. Not only the code is
cleaner, but unidasm has access to all the cpu cores again. The
interface to the disassembly method has changed from byte buffers to
objects that give a result to read methods. This also adds support
for lfsr and/or paged PCs.
The analogue joystick is now emulated. Also fixed a few minor issues
with the memory map.
This also adds a generic Z80 dasisy chain device, for use in drivers
with non-Z80 peripherals.
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.
* 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.
The core changes are:
* Short name, full name and source file are no longer members of device_t, they are part of the device type
* MACHINE_COFIG_START no longer needs a driver class
* MACHINE_CONFIG_DERIVED_CLASS is no longer necessary
* Specify the state class you want in the GAME/COMP/CONS line
* The compiler will work out the base class where the driver init member is declared
* There is one static device type object per driver rather than one per machine configuration
Use DECLARE_DEVICE_TYPE or DECLARE_DEVICE_TYPE_NS to declare device type.
* DECLARE_DEVICE_TYPE forward-declares teh device type and class, and declares extern object finders.
* DECLARE_DEVICE_TYPE_NS is for devices classes in namespaces - it doesn't forward-declare the device type.
Use DEFINE_DEVICE_TYPE or DEFINE_DEVICE_TYPE_NS to define device types.
* These macros declare storage for the static data, and instantiate the device type and device finder templates.
The rest of the changes are mostly just moving stuff out of headers that shouldn't be there, renaming stuff for consistency, and scoping stuff down where appropriate.
Things I've actually messed with substantially:
* More descriptive names for a lot of devices
* Untangled the fantasy sound from the driver state, which necessitates breaking up sound/flip writes
* Changed DECO BSMT2000 ready callback into a device delegate
* Untangled Microprose 3D noise from driver state
* Used object finders for CoCo multipak, KC85 D002, and Irem sound subdevices
* Started to get TI-99 stuff out of the TI-990 directory and arrange bus devices properly
* Started to break out common parts of Samsung ARM SoC devices
* Turned some of FM, SID, SCSP DSP, EPIC12 and Voodoo cores into something resmbling C++
* Tried to make Z180 table allocation/setup a bit safer
* Converted generic keyboard/terminal to not use WRITE8 - space/offset aren't relevant
* Dynamically allocate generic terminal buffer so derived devices (e.g. teleprinter) can specify size
* Imporved encapsulation of Z80DART channels
* Refactored the SPC7110 bit table generator loop to make it more readable
* Added wrappers for SNES PPU operations so members can be made protected
* Factored out some boilerplate for YM chips with PSG
* toaplan2 gfx
* stic/intv resolution
* Video System video
* Out Run/Y-board sprite alignment
* GIC video hookup
* Amstrad CPC ROM box members
* IQ151 ROM cart region
* MSX cart IRQ callback resolution time
* SMS passthrough control devices starting subslots
I've smoke-tested several drivers, but I've probably missed something. Things I've missed will likely blow up spectacularly with failure to bind errors and the like. Let me know if there's more subtle breakage (could have happened in FM or Voodoo).
And can everyone please, please try to keep stuff clean. In particular, please stop polluting the global namespace. Keep things out of headers that don't need to be there, and use things that can be scoped down rather than macros.
It feels like an uphill battle trying to get this stuff under control while more of it's added.
* Use size_t for sizes and <algorithm> for algorithms
* Fix up some files that were getting linked into multiple libs
* Add missing virtual method to sh2 peripheral class
* Put shortname in driver struct for locality
* Use shared pointers in config LRU cache for safety
* Added m146805 and m68hc05 to unidasm
* Made opcode tables configurable in m6805_base_device, provided tables for HMOS, CMOS and HC families
* Implemented MUL instruction, made unimplemented STOP and WAIT raise fatal error
* Added skeleton MC68HC05C4 with RAM and ROM in correct locations in memory map
* Moved 68705 devices into their own file.
* Made P3, P5 and U3 variants and made them load bootstrap ROMs.
* Implemented EPROM control (write is stubbed out with a logerror).
* Implemented differences for open drain I/O ports.
(nw) Base device with peripherals should really derive from the 6805
device directly, not the 68705 devices, as I/O ports are present on mask
devices (e.g. 6805P2). All drivers and devices that were using
M68705_NEW have been changed to M68705P5 - someone who knows the drivers
better should fix them up.
