means of setting the minimum useful scheduling quantum, and clamping
all quanta to that value.
Changed interleave/boost handling to use scheduling quanta instead
of timers.
Added machine parameter to cpu_boost_interleave.
Updated cpuexec to compute the "perfect" interleave value taking into
account the minimum number of cycles per instruction specified by the
CPU core. Updated Z80 core to indicate that the minimum cpi is 2. Fixed
incorrect minimum cpi in the 68020+ cores.
Simplified a bit of logic in cpuexec_timeslice.
Sent: Sunday, November 02, 2008 1:04 AM
To: Aaron Giles
Subject: Z80 CPU change
Hello Aaron,
For a long time there was undiscovered internal register (MEMPTR) inside Z80 CPU which was visible by using BIT n,(HL) instruction in undocumented bits of flag, in
last few months lot of things have been discovered by team of Russian programmers. There was a test on real machine which showed status of flags after each instruction.
I am sending you now patch for Z80 with MEMPTR implemented, there is also one more bug fixed (BIT 6,(XY+o) was not implemented good it used BIT 4,(XY+o) code).
As a proof that things are now valid, I am sending screens before patch on Z80 cpu core, and after with compare of results on real machine.
I am also sending you a TZX file (for ZX Spectrum) since tests are done inside that driver.
Please inform me about status. Hope this could fix some issues in drivers using Z80, since some games used this flags.
Regards,
Miodrag Milanovic
* Hooked up 6845 in a daisy chain way into existing "6845 emulation"
* Clocks from schematics
* Video size issues - 6845 code related, discussion started on list
AICA: fix missing instruments in DTPK driver games [R. Belmont, Deunan Knute, kingshriek]
Naomi: unmapped words in the AICA address range must read as zero [R. Belmont]
With these changes Toy Fighter's music is much better.
Sent: Saturday, November 01, 2008 4:14 PM
To: submit@mamedev.org
Cc: atariace@hotmail.com
Subject: [patch] Toaplan2 save state fix
Hi mamedev,
I realized after sending my toaplan2 save state patch that I had
ignored the implications of memory_set_bankptr (grrr). This followup
patch fixes the most significant case of that, I'll fix up the
remaining ones later. Alternately, you can drop the patches for now
and I'll resubmit them later.
~aa
Sent: Saturday, November 01, 2008 11:29 AM
To: submit@mamedev.org
Cc: atariace@hotmail.com
Subject: [patch] State save support for toaplan2
Hi mamedev,
Attached is a small patch to add a toaplan2.h include file and save
state support for the driver. A number of variables changed from int
to specific sizes to support this, and I also fixed a harmless typo in
the mem_mask size.
~aa
Sent: Sunday, October 26, 2008 3:01 PM
To: submit@mamedev.org
Subject: expro02
Hi folk!
Another work in expro02 drive:
- Fixed dips in all galsnew sets and fantasia.
- Added dips location.
- A little drive clean up.
Bye Sonikos
adds/removes entries in header files, and fixes a few potential
multisession issues by explicitly adding initializers. asic65.c has
significant changes to accomodate using a struct instead of 16
variables, otherwise the changes in this patch are modest and obvious.
[Atari Ace]
There's an issue with the debugger handling of the 6502 instructions as
there's a mismatch between the core and what the debugger shows.
The changes are detailed in the spreadsheets that I've attached that
compares the core to the dasm.
Attachments:
m6502fix.zip contains the diff file
6502 debugger disassembly changes.zip contains an excel spreadsheet
(in both xls and xml formats) detailing the reasons/changes.
* bbusters.diff:
- Fixed service mode issues enabling extra RAM that was previously unmapped.
- Properly implemented all sound communications.
- Fixed ID 00387. (there are no sound issues, the bug in my opinion is no more valid)
* nmk16.diff
- Fixed ID 00224. (PCB behaviour verified by Corrado Tomaselli)
* renegade.diff
- Fixed ID 01679. (old code was an hack, cpu_getiloops is more acceptable)
* suprnova.diff
- Fixed ID 02042. (no other games are broken)
* twin16.diff
- Cleaned up a bit code to make it more readable.
- Reorganized CPUs order in all games. (main, sub, audio)
- Fixed ID 02268. (guesswork, a PCB is needed to understand how priorities work)
and removed an unnecessary hack from the driver.Probably one of Arbee's SCSP changes fixed it.
New games added or promoted from NOT_WORKING status
---------------------------------------------------
Virtual Mahjong 2 - My Fair Lady
(i.e. Do not credit me on this)
- Reworked inputs to allow 6 players through a selector.
- Hooked all lamps (even the ball simulator array).
- Added a internal layout and support for external artwork.
- Extended the hardware to support Buena Suerte '94.
- Cleaned up the driver.
New games added or promoted from NOT_WORKING status
---------------------------------------------------
Buena Suerte '94 [Grull Osgo, Roberto Fresca]
