Search found 64 matches

by altheos
Tue 16 Jul, 2019 4:50 pm
Forum: Development
Topic: IBM 300GL - 6282
Replies: 5
Views: 822

Re: IBM 300GL - 6282

Are you sure that this model use an Intel Flash rom ?
by altheos
Fri 24 May, 2019 12:43 pm
Forum: Patches
Topic: [Patch] New VHD support... now with added dynamics
Replies: 17
Views: 6066

Re: [Patch] New VHD support... now with added dynamics

Thanks for reply.
I've made some tests with "already made" dynamic VHD and so far your patch seems to be stable : thanks for your work.
by altheos
Fri 24 May, 2019 10:14 am
Forum: Patches
Topic: [Patch] New VHD support... now with added dynamics
Replies: 17
Views: 6066

Re: [Patch] New VHD support... now with added dynamics

Hi,

I can't apply your patch against a stock v14 : do you have a compatible version of your patch ?

Regards.
by altheos
Fri 17 May, 2019 4:59 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18737

Re: v15 compatibility & bug list (WIP)

SarahWalker wrote:
Fri 17 May, 2019 4:05 pm
Known issue.
Ok. Thanks.
by altheos
Fri 17 May, 2019 4:59 pm
Forum: General
Topic: [BUG] CLGD 5429 black screen
Replies: 2
Views: 1457

Re: [BUG] CLGD 5429 black screen

Ok. I didn't notice before. Thanks.
by altheos
Fri 17 May, 2019 11:18 am
Forum: General
Topic: [BUG] CLGD 5429 black screen
Replies: 2
Views: 1457

[BUG] CLGD 5429 black screen

Hello,

it seems that after the latest commit, i've got a black screen using CLGD 5429 with whatever system board except AMI BIOSes (486 and Windows). Does it need a new BIOS ?

Regards.
by altheos
Fri 17 May, 2019 10:18 am
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18737

Re: v15 compatibility & bug list (WIP)

I noticed a strange thing when DOS (MSDOS 6.22) is IDLE in prompt : emulation speed drops down using v15 (ie 49% with P300MMX). If I launch a game, or something else, emulation speed stay rock solid at 100%. I need to say that it's more or less the same with v14. When DOS is IDLE emulation speed dro...
by altheos
Wed 15 May, 2019 12:09 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18737

Re: v15 compatibility & bug list (WIP)

About Wolf3D,in some cases (huge room with many foes) the new dynarec is slower than the old one. Test machine : AWARD 430VX, 8 Mb RAM, MACH64 GX, SB Pro v2, MS-DOS 6.22. I can go as high as P233MMX with old dynarec, no slowdowns, and just P100 with new dynarec (host : i5 4460). Just tried Wolf3D o...
by altheos
Tue 14 May, 2019 11:36 am
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18737

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...
by altheos
Tue 14 May, 2019 9:19 am
Forum: General
Topic: [BUG] pcem crash dump when adding hard drives to some PS/1 and PS/2
Replies: 2
Views: 1348

Re: [BUG] pcem crash dump when adding hard drives to some PS/1 and PS/2

Seems it was related cause the problem is fixed !
Thanks.
by altheos
Mon 13 May, 2019 2:45 pm
Forum: General
Topic: [BUG] pcem crash dump when adding hard drives to some PS/1 and PS/2
Replies: 2
Views: 1348

[BUG] pcem crash dump when adding hard drives to some PS/1 and PS/2

Hello,

with latest source code, when I try to attach a freshly created disk to some PS/1 or PS/2 machines, PCem crashes.
Machines affected by this bug are : PS/2 model 50 (ESDI), PS/1 model 2121 (IDE), PS/2 model 55SX (ESDI). Others machines are unaffected.
by altheos
Mon 13 May, 2019 2:31 pm
Forum: Development
Topic: v15 compatibility & bug list (WIP)
Replies: 59
Views: 18737

Re: v15 compatibility & bug list (WIP)

You can add :

Code: Select all

Award 430VX PCI, Pentium MMX 166, ATI Graphics Pro Turbo 4Mb, Voodoo, SB PCI 128, Win95
Working : Moto Racer
This one used to have major slowdowns with v14.
by altheos
Tue 07 May, 2019 8:24 am
Forum: Patches
Topic: [Patch] Ambra DP60 PCI
Replies: 3
Views: 1250

Re: [Patch] Ambra DP60 PCI

Unless dns2kv2 or someone owes a real machine it willl be difficult to know : AMBRA manufactured computers for less than 2 years (except for Canada).
by altheos
Wed 27 Mar, 2019 7:27 am
Forum: Development
Topic: v15 & new recompiler update
Replies: 86
Views: 23507

Re: v15 & new recompiler update

SarahWalker wrote:
Mon 25 Mar, 2019 6:33 pm
No. K6-2 if you have a _very_ fast machine and choose your software carefully.
K6-2 means a nice improvement for high-end machine. And does it means OOO execution too ?
Thanks for all the efforts put in this.
by altheos
Thu 14 Feb, 2019 10:43 am
Forum: General
Topic: VGA write mode 0 display bug
Replies: 2
Views: 1314

Re: VGA write mode 0 display bug

Hello,

I think the program is copyrighted (at least that's what the program displays when I launch it) and the company is still alive.
Can I send you this by another mean ?

Regards.
by altheos
Wed 13 Feb, 2019 10:10 am
Forum: General
Topic: VGA write mode 0 display bug
Replies: 2
Views: 1314

VGA write mode 0 display bug

Hello, I'm using various display tests programs and found what appears to be a bug in PCem's VGA write mode 0. Testing the VGA "ALU" operations results in incorrect display : Mode_0_AND_latches.PNG Here the test consist of ANDing the CPU bytes (that pass through the "barrel shifter" and the "set/res...
by altheos
Wed 23 Jan, 2019 9:35 am
Forum: Patches
Topic: Add new 1.2M, 1.68M and 1.72M disquette image creation and all pre-formatted
Replies: 6
Views: 2930

Re: Add new 1.2M, 1.68M and 1.72M disquette image creation and all pre-formatted

1.68 Mo is Microsoft DMF. IBMs' XDF could go as high as 1860 Ko. The other capacities look liked 2M/fdformat formatted disks.
by altheos
Wed 23 Jan, 2019 9:25 am
Forum: General
Topic: Wordbasic overflow error 6 with DX processor
Replies: 5
Views: 2168

Re: Wordbasic overflow error 6 with DX processor

Hello,

here is Sarah's reply about 80-Bit FPU : viewtopic.php?f=3&t=3049.
It could also possibly be a FPU bug.
by altheos
Wed 12 Sep, 2018 3:53 pm
Forum: General
Topic: Emulating an Amstrad PC5286
Replies: 9
Views: 3431

Re: Emulating an Amstrad PC5286

One detail Banjo : many machines from that era did not have an IDE controller, so you could switch to MFM or ESDI controller / drive if you care.
by altheos
Fri 17 Aug, 2018 9:16 am
Forum: General
Topic: Not reading bootfloppy?
Replies: 12
Views: 2827

Re: Error: PCI Read Configuration Failure

At first, maybe you should configure your BIOS with 1.44 Mb floppy. Based on your screenshot they are configured as 2.88 Mb.
Then after, change your CPU to an Intel DX2/66 for instance and don't use dynarec.
You should also lower guest memory to 64 Mb max.
by altheos
Thu 24 May, 2018 2:58 pm
Forum: Development
Topic: [REQUEST] MPEG DVD Decoder Card Support
Replies: 4
Views: 2020

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: 2164

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: 910

[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: 1576

[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: 1127

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: 2737

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: 2737

[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: 1731

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: 1578

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: 1578

Re: VCLK question

I use Trident ones. There is differences between TGUI9440 and 8900D : one use calculated VLCK and the other register fixed ?