Search found 37 matches

by altheos
Mon 27 Nov, 2017 4:21 pm
Forum: Development
Topic: Solving DDK issues under MSYS2
Replies: 2
Views: 277

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: 359

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: 359

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: 359

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: 846

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: 294

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: 294

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/IntroBIOS_files/Day1_07_Advanced%20x86%20-%20BIOS%20and%20SMM%20Internals%20-%20SMM.pdf
by altheos
Mon 24 Jul, 2017 3:13 pm
Forum: General
Topic: Carmageddon (1997) freezes a few seconds after race starts
Replies: 9
Views: 970

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: 846

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: 846

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: 420

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: 2182

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: 846

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: 846

[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: 2182

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: 2182

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: 2182

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: 505

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: 389

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: 289

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: 389

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 389 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: 558

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: 558

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 ?
by altheos
Mon 12 Jun, 2017 10:11 am
Forum: General
Topic: PCem crash PS/2 model 55SX ESDI drive
Replies: 4
Views: 558

PCem crash PS/2 model 55SX ESDI drive

Hello, It seems that PCem (latest version compiled) crashes on 55SX model. PClog content is : "Write sector buffer count 0036" I know that pgrainbow could boot on ESDI drive with the right nvr file but I can't. Config I use : PS/2 Model 55SX, I386SX 16, 4 Mb RAM, IBM ESDI fixed disk adapte...
by altheos
Sun 04 Jun, 2017 11:52 am
Forum: General
Topic: [Partially-Solved] PCem v12 and Sound Lag
Replies: 124
Views: 6707

Re: [Solved] PCem v12 and Sound Lag

Indeed, I don't want to see two forks go different ways, this is indeed bad for the future of this great PC emulator. Please make up, and know that fights also happen in the best of families. :) Indeed. Me, too. I used PCem and 86Box half year, (I didn't know 86Box half year ago, when I knew discon...
by altheos
Fri 19 May, 2017 12:47 pm
Forum: General
Topic: Support for 5.25 fd-formatted floppy
Replies: 8
Views: 633

Re: Support for 5.25 fd-formatted floppy

I found a workaround : put my 5.25 floppy disk in a 3.5 drive and it works. Not really exact emulation but i can live with that.
by altheos
Mon 15 May, 2017 8:52 am
Forum: General
Topic: Support for 5.25 fd-formatted floppy
Replies: 8
Views: 633

Re: Support for 5.25 fd-formatted floppy

Tried other floppy format (3.5 HD and 5.25 DD) and interestingly PCem read the TOC but doing anything with floppy result in garbage. Physical characteristics of disks are : 3.5 HD floppy = 82 tracks, 21 sectors/tracks, 2 sides, 1.745.408 bytes and 5.25 DD floppy = 82 tracks, 10 sectors/tracks, 2 sid...
by altheos
Thu 11 May, 2017 5:37 pm
Forum: General
Topic: Support for 5.25 fd-formatted floppy
Replies: 8
Views: 633

Re: Support for 5.25 fd-formatted floppy

OK. The specs on real hardware are : 82 tracks, 18 sectors/tracks, 2 sides, 512 bytes. Total space : 1494528 bytes. Total : 1511424 bytes. I could not find tracks and sectors details in winimage
It's the max that fdformat can do on 5.25 floppy.
by altheos
Thu 11 May, 2017 12:10 pm
Forum: General
Topic: Support for 5.25 fd-formatted floppy
Replies: 8
Views: 633

Re: Support for 5.25 fd-formatted floppy

Winimage reports : 1.494.528 bytes in 2919 clusters for a 5.25 HD floppy. I will check on real hardware to report sectors/tracks
by altheos
Thu 11 May, 2017 11:47 am
Forum: General
Topic: Support for 5.25 fd-formatted floppy
Replies: 8
Views: 633

Re: Support for 5.25 fd-formatted floppy

Fd-format was : " A DOS tool written in Pascal by Christoph H. Hochstätter that allows users to format floppy disks to a higher than usual density, enabling the user to store up to 300 kilobytes more data on a normal high density 3.5" floppy disk" (wikipedia). It is not related with l...

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