Search found 1711 matches

by SarahWalker
Mon 19 Aug, 2019 1:41 pm
Forum: General
Topic: CGA / Hercules refresh rates
Replies: 2
Views: 175

Re: CGA / Hercules refresh rates

Hercules could either be that the emulated 6845 clock is a bit off, or that there's some bug in the 6845 emulation resulting in horizontal or vertical timings being too short. Or that the PIT is running slightly slow, maybe an one-by-one bug somewhere. Hercules software generally isn't timing critic...
by SarahWalker
Wed 07 Aug, 2019 3:06 pm
Forum: General
Topic: DOS running at 65Hz instead of 70Hz, audio issues.
Replies: 11
Views: 811

Re: DOS running at 65Hz instead of 70Hz, audio issues.

If I listed all the things that slow down emulation we'd be here all day. It's not worth it.
by SarahWalker
Wed 07 Aug, 2019 1:43 pm
Forum: General
Topic: DOS running at 65Hz instead of 70Hz, audio issues.
Replies: 11
Views: 811

Re: DOS running at 65Hz instead of 70Hz, audio issues.

It's already known what causes excessive recompilation with EMM386.
by SarahWalker
Wed 07 Aug, 2019 6:42 am
Forum: General
Topic: DOS running at 65Hz instead of 70Hz, audio issues.
Replies: 11
Views: 811

Re: DOS running at 65Hz instead of 70Hz, audio issues.

Please provide your configuration.
by SarahWalker
Sat 03 Aug, 2019 8:31 am
Forum: Development
Topic: PCem v15: 8086 running at the same speed as 8088
Replies: 4
Views: 936

Re: PCem v15: 8086 running at the same speed as 8088

The VTech machines boot with turbo off. Press CTRL+8 after boot to speed them up.
by SarahWalker
Wed 17 Jul, 2019 4:49 pm
Forum: Development
Topic: New computer? HP Brio 8014 - Help needed
Replies: 2
Views: 2413

Re: New computer? HP Brio 8014 - Help needed

Look at the parameters being passed to piix_init()...
by SarahWalker
Mon 15 Jul, 2019 5:27 pm
Forum: Development
Topic: IBM 300GL - 6282
Replies: 5
Views: 824

Re: IBM 300GL - 6282

I'm trying to add a new computer - IBM 300GL model 6282 - It has the 430VX chipset (already emulated) and the PC87307 Super I/O (only the PC87306 has been coded) I tried to compile the new model using the PC87306 Super I/O but doesn't work. When I try to run the new model the emulator quits - I sea...
by SarahWalker
Fri 12 Jul, 2019 4:24 pm
Forum: General
Topic: 768kB RAM on Generic Turbo XT
Replies: 4
Views: 711

Re: 768kB RAM on Generic Turbo XT

The extra 128kB should be accessible as conventional/base memory if you're using MDA/CGA/Hercules video. EGA/VGA and later will render it inaccessible.
by SarahWalker
Fri 21 Jun, 2019 6:29 am
Forum: Development
Topic: Weird ram problem
Replies: 7
Views: 2069

Re: Weird ram problem

That's normal. PCem generally limits RAM to what would be possible on the real system you've selected.
by SarahWalker
Wed 19 Jun, 2019 4:21 pm
Forum: General
Topic: Possiblity of implementing cache emulation
Replies: 14
Views: 2150

Re: Possiblity of implementing cache emulation

No. I don't know how many times I have to say this...
by SarahWalker
Tue 18 Jun, 2019 4:42 pm
Forum: General
Topic: v15 released!
Replies: 37
Views: 12253

Re: v15 released!

I'd forgotten to actually test that, so I'm glad to see the K6 timings are accurate enough to break Win95a.
by SarahWalker
Mon 03 Jun, 2019 5:22 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18742

Re: v15 compatibility & bug list (WIP)

You can see how much CPU time the Voodoo threads are taking in the PCem status window. The percentage before the frames/sec line is the FIFO thread (though I think this is a grotesque overestimate, and counts the time this thread waits on the render threads), the two percentages below frames/sec are...
by SarahWalker
Wed 29 May, 2019 4:52 pm
Forum: General
Topic: FPU emulation
Replies: 1
Views: 1096

Re: FPU emulation

No. Currently FPU is only emulated on 486DX and later CPUs.
by SarahWalker
Sun 26 May, 2019 8:00 pm
Forum: Development
Topic: Can we have a PCem BIOS datfile?
Replies: 10
Views: 3719

Re: Can we have a PCem BIOS datfile?

You want a reaction from me? I honestly don't care about this in the slightest.
by SarahWalker
Sun 26 May, 2019 7:04 am
Forum: General
Topic: v15 released!
Replies: 37
Views: 12253

Re: v15 released!

Not a lot for the most part; the main CPU load is the CPU emulation, and that's strictly single threaded. The only reason to go past 4 cores is if you want to emulate a Voodoo 2 SLI setup, as the Voodoo emulation can use up to 3 threads per card.
by SarahWalker
Fri 24 May, 2019 8:29 am
Forum: Development
Topic: Fake AMD K5
Replies: 1
Views: 1779

Re: Fake AMD K5

One of the problems with implementing timing for the K5 is that AMD never publicly documented what actually changed between the SSA/5 and 5K86 - and clearly there were some major changes, given how different the per-clock performance on the two cores is! At some point I need to sit down with both ch...
by SarahWalker
Thu 23 May, 2019 4:10 pm
Forum: Development
Topic: Compile error - files missing
Replies: 5
Views: 1925

Re: Compile error - files missing

Sorry, may be I made a mistake, I use the following to compile will be show the error, $cd pcem/src $make -f Makefile.mingw-wx-sdl2-network That makefile has no references to codegen_x86-64.c (which doesn't exist in v15). Are you sure you've actually got a clean checkout of v15, and aren't mixing f...
by SarahWalker
Wed 22 May, 2019 3:09 pm
Forum: General
Topic: Raspbian can't compile v15
Replies: 9
Views: 3584

Re: Raspbian can't compile v15

On a Pi3 I can run Doom 2 at 486/25, but most things are happier at 486/16. The A53 is not a fast cpu.
by SarahWalker
Mon 20 May, 2019 4:59 pm
Forum: General
Topic: v15 released!
Replies: 37
Views: 12253

Re: v15 released!

rex_c wrote:
Mon 20 May, 2019 1:38 pm
One more thing, seem forget to change the version no. here....
I forgot there even was an About dialogue. Fixed with a hex editor...
by SarahWalker
Mon 20 May, 2019 7:35 am
Forum: General
Topic: v15 released!
Replies: 37
Views: 12253

Re: v15 released!

omarsis81 wrote:
Sun 19 May, 2019 10:09 pm
Thank you! v15 finally arrived!
One question Sarah: do you have more ideas for further optimisations?
Yes. It's mainly a matter of time and energy, and I don't have any of the latter left at the moment!
by SarahWalker
Mon 20 May, 2019 7:35 am
Forum: General
Topic: Raspbian can't compile v15
Replies: 9
Views: 3584

Re: Raspbian can't compile v15

Not sure what I can suggest for that. Try a newer GCC?
by SarahWalker
Sun 19 May, 2019 4:58 pm
Forum: General
Topic: v15 released!
Replies: 37
Views: 12253

v15 released!

PCem v15 is (finally!) available. Changes since v14 : New machines added - Zenith Data SupersPort, Bull Micral 45, Tulip AT Compact, Amstrad PPC512/640, Packard Bell PB410A, ASUS P/I-P55TVP4, ASUS P/I-P55T2P4, Epox P55-VA, FIC VA-503+ New graphics cards added - Image Manager 1024, Sigma Designs Colo...
by SarahWalker
Sat 18 May, 2019 1:51 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18742

Re: v15 compatibility & bug list (WIP)

FDC fixed in rev 1471.
by SarahWalker
Sat 18 May, 2019 1:38 pm
Forum: General
Topic: Action Soccer Windows 98 SE installation
Replies: 9
Views: 2366

Re: Action Soccer Windows 98 SE installation

Try :

config.sys

Code: Select all

DEVICEHIGH=C:\DOS\OAKCDROM.SYS /D:MSC001
autoexec.bat

Code: Select all

Code: Select all

rem - By WIndows Setup - MSCDEX.EXE /D:MSCD001 /L:D
C:\MOUSE\CTMOUSE.EXE /R2
SET MIDI=SYNTH:1 MAP:E
SET SOUND=C:\PROGRA~2\CREATIVE\CTSND
SET BLASTER=A220 I7 D1 H5 P330 T6
by SarahWalker
Fri 17 May, 2019 4:07 pm
Forum: General
Topic: [BUG] CLGD 5429 black screen
Replies: 2
Views: 1458

Re: [BUG] CLGD 5429 black screen

It's been broken a lot longer than the last commit...

Fixed in rev 1461.
by SarahWalker
Fri 17 May, 2019 4:05 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18742

Re: v15 compatibility & bug list (WIP)

Known issue.
by SarahWalker
Wed 15 May, 2019 7:38 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18742

Re: v15 compatibility & bug list (WIP)

EDIT: Just found a dynarec-related music stutter bug with Command & Conquer (DOS) and Red Alert (DOS). AMI WinBIOS 486 iDX4/75, Win95A, Trio64, SB16. Occurs during 100% execution. Fine on interpreter. Windows 95 versions are fine. I'm getting stuttering on the interpreter as well, doesn't seem to b...
by SarahWalker
Wed 15 May, 2019 6:52 pm
Forum: General
Topic: bug: pb570 crash with cd image loaded at start.
Replies: 2
Views: 1594

Re: bug: pb570 crash with cd image loaded at start.

Fixed in rev 1457.
by SarahWalker
Tue 14 May, 2019 8:36 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18742

Re: v15 compatibility & bug list (WIP)

OK i've went through the whole PC-DOS mini image FIC VA-503+, AMD K6-2/300, 64mb, ViRGE/DX 4mb, SBPro 2 (IRQ5 DMA1 220H), FreeDOS "PC-DOS MINI" HD image (Full of demos on a launcher with FreeDOS) Working: Wolfenstein 3D demo About Wolf3D,in some cases (huge room with many foes) the new dynarec is s...