Search found 44 matches

by altheos
Thu 24 May, 2018 2:58 pm
Forum: Development
Topic: [REQUEST] MPEG DVD Decoder Card Support
Replies: 4
Views: 474

Re: [REQUEST] MPEG DVD Decoder Card Support

Hello,

I remember that Gladstone requested Real Magic card support (topic opened nearly a year ago).
Emulating these cards seems not to be an easy task.

Regards.
by altheos
Mon 23 Apr, 2018 9:23 am
Forum: Development
Topic: [REQUEST] IBM 8514/A & XGA adapters
Replies: 4
Views: 534

Re: [REQUEST] IBM 8514/A & XGA adapters

Interesting request though it's hard to find datasheet for theses cards. I hope they will be added to Pcem someday.
by altheos
Mon 23 Apr, 2018 9:11 am
Forum: General
Topic: [Bug] PCem crash with OS/2 2.0 on ESDI drive
Replies: 0
Views: 156

[Bug] PCem crash with OS/2 2.0 on ESDI drive

Hello,

when I try to install OS/2 2.0 on a PS/2 55SX (386SX 20, 4 Mb RAM) with ESDI hard drive (geometry 762/6/26 like the real hardware), PCem v14 crashes with "Bad Attention Request 03".
Crash happens when HPFS formating drive.
Can someone confirm this is a bug ?
by altheos
Sun 18 Mar, 2018 9:26 am
Forum: General
Topic: [Request] Improve Hard Drives timings
Replies: 3
Views: 620

[Request] Improve Hard Drives timings

Hello, I see recent improvement on cdrom and video cards timings and I think it could be interesting to see the same improvement for hard drives. Cause even on slowest MFM drives (8 bit controller, access time near 100ms and throughput lower than 1 Mb/s), PCem format and access drive really fast. I ...
by altheos
Mon 19 Feb, 2018 9:37 am
Forum: Development
Topic: Question about commit 8c60f50
Replies: 1
Views: 406

Question about commit 8c60f50

Hi, Sarah : can you explain me why you did this svga->hwcursor.addr = (0x1fc000 + ((val & 0x3f) * 256)) & svga->vram_mask; instead of svga->hwcursor.addr = (vram_size-0x4000) + ((val & 0x3f) * 256); as the first prevent an hypotetical 4 Mo display memory ? The docs says that the hardware cursors are...
by altheos
Tue 23 Jan, 2018 9:32 am
Forum: Development
Topic: [request] Implement onboard chips emulation
Replies: 7
Views: 1124

Re: [request] Implement onboard chips emulation

Do the mainboard BIOS not have already video BIOS code inside ?
by altheos
Mon 22 Jan, 2018 3:07 pm
Forum: Development
Topic: [request] Implement onboard chips emulation
Replies: 7
Views: 1124

[request] Implement onboard chips emulation

Hello,

I don't know if it's difficult to do but some emulated PCem boards (Intel Advanced/EV for instance) have onboard chips that aren't emulated : S3 Trio 64V+, SB Vibra 16.
Is it possible to add onboard chips emulation for future version please ?

Regards.
by altheos
Mon 27 Nov, 2017 4:21 pm
Forum: Development
Topic: Solving DDK issues under MSYS2
Replies: 3
Views: 686

Re: Solving DDK issues under MSYS2

Thanks,
it fixed compilation using MSYS2. Maybe Sarah will commit this change.
by altheos
Wed 08 Nov, 2017 10:54 am
Forum: Development
Topic: VCLK question
Replies: 5
Views: 570

Re: VCLK question

Ok thanks for the clarification Sarah. So, in theory, i could generate a 80 Mhz VCLK. True ?
And how is this frequency simulated with pcem ?
by altheos
Fri 03 Nov, 2017 8:51 am
Forum: Development
Topic: VCLK question
Replies: 5
Views: 570

Re: VCLK question

I use Trident ones. There is differences between TGUI9440 and 8900D : one use calculated VLCK and the other register fixed ?
by altheos
Thu 02 Nov, 2017 4:39 pm
Forum: Development
Topic: VCLK question
Replies: 5
Views: 570

VCLK question

Hello,

Can someone explain how multiples VCLK is handled in Pcem ?
I found out (or maybe i'm totally wrong) that there is one svga clock and two fixed const but in case of more ?
Regards.
by altheos
Tue 01 Aug, 2017 7:56 pm
Forum: Development
Topic: [Patch] Suggestion : add GUS MAX and Crystal soundcards
Replies: 13
Views: 1318

Re: [Patch] Suggestion : add GUS MAX and Crystal soundcards

Does someone knows a good ADPCM sound player on DOS/windows 3.1 ? I found samples but can't use them to make my tests.
by altheos
Tue 01 Aug, 2017 7:52 pm
Forum: General
Topic: SMM handler ?
Replies: 3
Views: 410

Re: SMM handler ?

Ok. Is this functionality planned ? v14 ? I know there's surely other priorities :)
Qemu and Bochs seems to support this.
by altheos
Tue 01 Aug, 2017 9:43 am
Forum: General
Topic: SMM handler ?
Replies: 3
Views: 410

SMM handler ?

Hello,

i would like to know if there is code in PCem that handle SMM/SMI ?
SMM is mainly used by APM and some OEM code : http://opensecuritytraining.info/IntroB ... %20SMM.pdf
by altheos
Mon 24 Jul, 2017 3:13 pm
Forum: General
Topic: Carmageddon (1997) freezes a few seconds after race starts
Replies: 10
Views: 1717

Re: Carmageddon (1997) freezes a few seconds after race starts

Process Explorer 11.11 should work ;)
by altheos
Mon 24 Jul, 2017 1:36 pm
Forum: Development
Topic: [Patch] Suggestion : add GUS MAX and Crystal soundcards
Replies: 13
Views: 1318

Re: Suggestion : add GUS MAX and Crystal soundcards

Hello, I fixed the sound loop and polished a little more the code.I focused on making the GUS MAX works. Analog Device and Crystal emulation are splitted for future expansion but right now it's not really usefull. Patch needs testing so here it is : src.zip I need to find out how ADPCM 4bit works bu...
by altheos
Mon 17 Jul, 2017 2:55 pm
Forum: Development
Topic: [Patch] Suggestion : add GUS MAX and Crystal soundcards
Replies: 13
Views: 1318

Re: Suggestion : add GUS MAX and Crystal soundcards

So no one is interested in theses cards ?
I finally succeded in launching Win 3.1 with GUS MAX driver. But this leads to another problem as samples are playing in a continuous loop. I probably ovelooked some latches.
by altheos
Mon 17 Jul, 2017 2:48 pm
Forum: Development
Topic: [Bug] MR 386DX clone is broken...
Replies: 6
Views: 726

Re: [Bug] MR 386DX clone is broken...

I could not reproduce with build f05fbc5 as MR 386DX is working. Perhaps it's related to later changes.
by altheos
Mon 10 Jul, 2017 7:27 am
Forum: General
Topic: Improving the AWE32 emulation
Replies: 26
Views: 3186

Re: Improving the AWE32 emulation

@JosepMa : I can do the test on an AWE64 if you need to.
by altheos
Thu 06 Jul, 2017 11:43 am
Forum: Development
Topic: [Patch] Suggestion : add GUS MAX and Crystal soundcards
Replies: 13
Views: 1318

Re: Suggestion : add GUS MAX and Crystal soundcards

@omarsis :
cause it shouldn't be too hard to add as CS4231 is really close to the AD1848 that PCem already emulate (as part of WSS) and Crystal sound cards (4231/4232/4236) can be found on many boards.
by altheos
Thu 06 Jul, 2017 7:29 am
Forum: Development
Topic: [Patch] Suggestion : add GUS MAX and Crystal soundcards
Replies: 13
Views: 1318

[Patch] Suggestion : add GUS MAX and Crystal soundcards

Hello, first, as a warn, i'm no programmer, so don't blame me for what you will read below. I think that PCem could add GUS MAX support as nearly everything is already emulated : a gus MAX is classic GUS with the addition of a CS4231 Codec (WSS). I read the GUS SDK, a CS4231 tech sheet, compared wit...
by altheos
Fri 23 Jun, 2017 9:24 am
Forum: General
Topic: Improving the AWE32 emulation
Replies: 26
Views: 3186

Re: Improving the AWE32 emulation

Nice Job !
May I ask how did you determine that, for instance, Impulse tracker tests the non variability of the LS byte and the variability of the MS byte to identify the AWE32 ? Reading through ASM code ?
by altheos
Thu 22 Jun, 2017 7:43 am
Forum: General
Topic: Improving the AWE32 emulation
Replies: 26
Views: 3186

Re: Improving the AWE32 emulation

Ok. I didn't know that by default OCP uses SB16 mode :D . The problem can be reproduced by explicitly selecting the AWE32 output.
by altheos
Wed 21 Jun, 2017 11:53 am
Forum: General
Topic: Improving the AWE32 emulation
Replies: 26
Views: 3186

Re: Improving the AWE32 emulation

OCP works for me without specific configuration : AMI 486 Clone, DX/4 100, 16 Mb RAM, AWE32 (512k,DBOPL) t4,p220,i7,d1,e5, DOS 6.22, NO drivers loaded.
IT (v214) works in SB16 mode but failed to detect AWE32 (without drivers loaded).
by altheos
Mon 19 Jun, 2017 7:38 am
Forum: General
Topic: Personal AMI WinBIOS Dump Won't Run.
Replies: 5
Views: 734

Re: Personal AMI WinBIOS Dump Won't Run.

Hello,

you have to make sure that PCem support your motherboard chipset ("soundbridge / northbridge"). It's not just a BIOS matter.
by altheos
Sat 17 Jun, 2017 4:32 pm
Forum: General
Topic: Problems with 16-Bit DMA ?
Replies: 3
Views: 529

Re: Problems with 16-Bit DMA ?

Thanks sarah. I tried to dig into your code but i was stuck into this loop thinking that gus supported 16-bit DMA.
by altheos
Sat 17 Jun, 2017 4:21 pm
Forum: Development
Topic: [Bug] Configuration manager doesn't work correctly
Replies: 3
Views: 435

Re: [Bug] Configuration manager doesn't work correctly

Also, save your config file in that folder cause it uses current working directory by default for me.
by altheos
Fri 16 Jun, 2017 1:49 pm
Forum: General
Topic: Problems with 16-Bit DMA ?
Replies: 3
Views: 529

Problems with 16-Bit DMA ?

Hello,
I'm trying to put Ultrasound on 16 bit DMA but setup test keeps failing :
Cap2.PNG
Cap2.PNG (16.27 KiB) Viewed 529 times
Pcem detect that it's a 16-bit DMA (here dma channel is 0x5), but I can't go any further.
Is the GUS test accurate for 16 bit DMA or not ?

Thanks.
by altheos
Wed 14 Jun, 2017 11:24 am
Forum: General
Topic: PCem crash PS/2 model 55SX ESDI drive
Replies: 4
Views: 763

Re: PCem crash PS/2 model 55SX ESDI drive

Sorry, i forgot that ;) It works flawlessly now with the right ADF and NVR files. Thanks !
by altheos
Tue 13 Jun, 2017 8:58 am
Forum: General
Topic: PCem crash PS/2 model 55SX ESDI drive
Replies: 4
Views: 763

Re: PCem crash PS/2 model 55SX ESDI drive

Ok, thanks Sarah.
PCem is no more crashing in rev763.
But, conflict is still there and RLL/ESDI is unbootable even with the right nvr file.

I use BIOS PN 33F8152 (11/02/88), model F8, Submodel C, Revision Level 0, Ref Disc 1.05. Which version do you have ?