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PC Emulation: Adaptec 1540

Posted on 2016-10-17, 23:36

in PC Emulation
Well, I'm trying to emulate this ancient SCSI adapter for a long time, and has got some progress, however, I'm stuck in a phase that the doc doesn't mention at all or badly documents it. The part where I'm stuck is: where does it fetch the CDB buffer contents? Via DMA? If so, how? It's not like IDE …

Re: PCEm. Another PC emulator.

Posted on 2015-10-26, 13:02

in PC Emulation
philscomputerlab wrote: Might have to check it out. A few noob questions: Is there an easy way to transfer files between emulator and host, like a shared folder? Or are disk images the way to go. disk images, there's no shared folder support, at least, yet.

Re: DOSBox-X branch

Posted on 2015-09-15, 17:46

TheGreatCodeholio, do you know anything about win3.1's vdd from switching DOS sessions from fullscreen to windowed mode (for the vram and addresses b0000-bffff)? (in vga only, about *vddvga).

Re: DOSBox-X branch

Posted on 2015-08-18, 21:49

if you want to add optional aha-1540 emulation, I've got the manual and documents about it :) I dumped my AHA-1542CF (both the BIOS and the Z80 microcode) for MESS some months ago, in case someone wants to take a look at it. It should be in every MAME ROMset by now (or I can provide it if …

Re: DOSBox-X branch

Posted on 2015-08-10, 18:12

if you want to add optional aha-1540 emulation, I've got the manual and documents about it :) Off the top of my head, "AHA-xxxx" means some kind of Adaptec SCSI host adapter? Sure, why not? For emulations sake, is that chipset on ISA or PCI cards? Are there drivers for it for DOS and Windows 9x? …

Re: DOSBox-X branch

Posted on 2015-03-26, 20:28

for the fdc issues, you may also take a look at Battler's work on PCem-X (fork of PCem with enhancements for the floppy controller, and it even allows for 3-mode ones) on forum.softhistory.org (it's where it's stored) or Sarah's latest rv (revisions) on her bitbucket site, and meanwhile, is it …

Re: DOSBox-X branch

Posted on 2015-01-01, 13:36

Sorry if this is a question related to an outdated version of dosbox-x, but what does win95 do to communicate with the ide controller? Which ide commands? Because I'm getting "Unit number 00 going through real mode drivers." on win95 pc98 on xnp2 (I know this is an entire different architecture and …

Re: PCEm. Another PC emulator.

Posted on 2014-12-30, 20:32

in PC Emulation
Well, PCem already emulates the Pentium processor and, since the IBM Aptiva is PC compatible, there's no need to emulate it unless it has a different chipset than the other models PCem emulates have.

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