Corrected one rom name for Mega Touch 6 set
Added dip port locations
Corrected dips for the 2 Pit Boss Megastar sets
Improved the dips for Pit Boss Supertouch 30
Minor information / documentation updates
* Executed a trojan on 2 noraut systems to confirm the way 16x32 tiles are decoded.
* Fixed the x-offset for 32x32 tiles lines.
* Fixed the screen aspect and visible area.
* Confirmed correct colors. No bipolar PROM involved.
* Added Noraut Joker Poker hardware and PCB layouts.
* Documented the discrete audio circuitry. Added a full diagram.
The following driver updates: [Brian Troha]
Corrected rom names for the Megastar & Supertouch 30
Added missing rom to Supertouch 30 and verified old bad_dumps
Added documentation about the Megastar sets
Made pbst30b a clone of pbst30 and added program versions to the name, IE: Pit Boss Supertouch 30 (9234-10-01)
New Clone Added
-------------------------
Pit Boss Megastar (9244-00-01) [Brian Troha, Dumping Union]
Introduced DISCRETE_TASK_START, DISCRETE_TASK_END
DISCRETE_TASK_START
- Start a new task. A task is a set of nodes which only depend on input nodes and nodes in the set
DISCRETE_TASK_END(task_output_node)
- Marks the end of the task. task_output_node is the node whose output over time should be preserved. This node can be accessed by nodes in the main thread.
Order of execution:
a) All tasks in parallel
b) All nodes not part of a task. These may only refer to nodes listed in DISCRETE_TASK_END
Illustrated the concept in the dkong discrete emulation. This also has been enhanced to buffer DAC output.
Further changes:
- DISCRETE_OUTPUT now is a stepping node.
- DISCRETE_STREAM_INPUT now advances input pointer in step.
- More linked_list usage.
I estimate that the rework without tasks leads to a 5% performance gain. For dkong, the usage of tasks adds another 15%.
There are some features missing:
- Multiple nodes in DISCRETE_TASK_END
- More task consistency checks
- Task identifiers for tasks
Decoded all protection data for B.Rap Boys [David Haywood, Tomasz Slanina]
Cleaned up decryption function for B.Rap Boys external Rom [David Haywood]
Improved video emulation for B.Rap Boys [David Haywood]
Marked several GFX roms as bad on B.Rap Boys [David Haywood]
Improved protection simulation logic w/regards to writeback addresses, allowing B.Rap Boys to boot [Tomasz Slanina]
http://www.mameworld.info/ubbthreads/showthreaded.php?Cat=&Number=199853&page=0&view=expanded&sb=5&o=&fpart=1&vc=1
I don't know this z80 emulator well enough to look into his first two points. Juergen?
1/ In the cc_xy[] table which lists instructions with DD or FD prefixes, "illegal" combos are returning 4 cycles when they should return 4 + cc_op (the normal instruction being executed). Another way to handle this correctly is to call EXEC(z80,fd,xx) or EXEC(z80,dd,xx) instead of op_xx(z80) when such pair of opcode is detected, to be sure the correct amount of cycles is used.
2/ According to Sean Young, R register is NOT incremented when chaining multiple DD or FD prefixes: [...]
This one was already fixed, dunno when:
2/ In the cc_ed[] table, INI (ED A2) and IND (ED AA) should return 16 cycles, like other instructions from this group, not 12. This seems to be a typo error.
Not working (100% correctly) like all games in the Mega-Tech Mega-Play driver
New Game Added
-------------------------------------
Great Football [Kevin Eshbach, Charles MacDonald, Smitdogg, Dumping Union]
- change the way custom modules are handled
- updated drivers mario and dkong accordingly
- minor change to stream input handling
- no more linear lists for nodes. All node processing switched to linked lists.
- module step and reset now only get a node pointer passed
- Added discrete_info * pointer to node
- Only nodes with a step routine actually get processed.
- Fixed a bug: discrete logs did not work since some time
- preliminary parallel task constants; depending on results these may vanish again.
- Overall slight performance increase. dkong 940% to 960%, galaxian 740% to 790%
- implemented carts banking and multiple EEPROMs
- added "pen replacement" blit mode
- fixed palette size
New games added or promoted from NOT_WORKING status
---------------------------------------------------
Galaxy Games StarPak 2 [Luca Elia, Siftware]
* Switched to pre-defined Xtal clock.
* Changed the way how graphics are banked/accessed.
* Fixed the graphics offset and number of tiles per bank.
* Added new set: Noraut Red Hot Joker Poker.
* Added new set: Noraut Poker (NTX10A).
* Added new set: Noraut Joker Poker (V3.010a).
* Fixed the tile size/decode for the first GFX bank.
* Added proper norautrh inputs, including the readout button.
* Added partial DIP switches to norautrh.
* Added more technical notes.
Also fix Mantis 03284.
New games added or promoted from NOT_WORKING status
---------------------------------------------------
Noraut Red Hot Joker Poker [Roberto Fresca, Alan Griffin]
New games marked as GAME_NOT_WORKING
------------------------------------
Noraut Poker (NTX10A) [Roberto Fresca, Alan Griffin]
Noraut Joker Poker (V3.010a) [Roberto Fresca, Alan Griffin]
- added unidasm to the tools build
- split the disassemblers out of libcpu and into new libdasm
- ensured the disassembly entry points for all disassemblers are
in the source file for the disassembler (sometimes new generic
versions were created)
Still needs command line options and file loading, but the
fundamentals are present, and it links.
- added discrete sound to battle zone
- engine frequency (resistor R11) can be changed with slider
- discrete sound may be disabled by setting BZONE_DISCRETE to 0 in bzone.h
DISCRETE_RCDISC3
- added diode junction voltage
- junction voltage also indicates polarity
DISCRETE_OPAMP_FILTER
- added type DISC_OP_AMP_FILTER_IS_LOW_PASS_1M
- INP2 takes role of v_ref in this type
DISCRETE_OPAMP
- Fixed a bug (possible divide by 0)
DISCRETE_LFSR
- Fixed bug preventing output of shift reg to sub node 1
