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Search: Posts Made By: mark_k
Forum: support.Other Today, 02:31
Replies: 13
Views: 165
Posted By mark_k
If you go that route it would be better to create...

If you go that route it would be better to create image files (ADF files) from the original disks rather than copying individual files.

But I would just suck it up and pay for a new box of DSDD...
Forum: support.WinUAE Today, 01:39
Replies: 826
Views: 215,597
Posted By mark_k
Yes. It was probably a tool on the...

Yes.

It was probably a tool on the Macrosystem Deinterlace card disk that I used to adjust the number of lines.

In addition to seeing where the height switch occurs, you can see what range of...
Forum: support.Other Yesterday, 23:21
Replies: 13
Views: 165
Posted By mark_k
Unless you have a very late model (Escom/Amiga...

Unless you have a very late model (Escom/Amiga Technologies) machine covering the HD hole won't make a difference since the drive just doesn't have a sensor there.

How reliably an Amiga drive...
Forum: support.Other Yesterday, 19:54
Replies: 13
Views: 165
Posted By mark_k
You could try Badformat...

You could try Badformat (http://aminet.net/package/disk/misc/badformat) to mark tracks as bad.

Due to the way tracks are written whole tracks must be marked as bad rather than individual sectors....
Forum: support.WinUAE 28 July 2021, 23:50
Replies: 826
Views: 215,597
Posted By mark_k
Most CRTs (incl. my old 1084) have an internal...

Most CRTs (incl. my old 1084) have an internal height switch. Here height really means distance between successive scanlines.

If you gradually decrease the number of lines per frame (so increase...
Forum: support.WinUAE 28 July 2021, 21:01
Replies: 826
Views: 215,597
Posted By mark_k
Is the height adjustment supposed to continuously...

Is the height adjustment supposed to continuously adjust the vertical stretch factor, so that however many scanlines there are, the whole image aspect ratio is (close to) 4:3?
Forum: support.WinUAE 28 July 2021, 19:14
Replies: 13
Views: 982
Posted By mark_k
Is the WinUAE config you're using set to emulate...

Is the WinUAE config you're using set to emulate the Velvet hardware? Just loading the Velvet Kickstart on an A500 (or other retail Amiga) config wouldn't work.
Forum: support.WinUAE 28 July 2021, 10:18
Replies: 13
Views: 982
Posted By mark_k
I could have sworn I tested in WinUAE (using...

I could have sworn I tested in WinUAE (using whichever version was current at the time). Could something have changed with WinUAE's velvet emulation since then???
Forum: Amiga scene 26 July 2021, 14:59
Replies: 7
Views: 799
Posted By mark_k
Doesn't Giana Sisters save the high score table...

Doesn't Giana Sisters save the high score table to disk? So if the game was ever played with the disk write-enabled it would be modified.
Forum: support.WinUAE 26 July 2021, 13:54
Replies: 13
Views: 982
Posted By mark_k
I think it uses standard trackdisk format. I...

I think it uses standard trackdisk format.

I made a bootable ADF for it, see this post.

Also a ROM-dumping ADF, see this other post.

Neither was tested on real hardware though.
Forum: Coders. Asm / Hardware 10 July 2021, 17:41
Replies: 18
Views: 808
Posted By mark_k
The problem might be due to vasm creating...

The problem might be due to vasm creating executables with RELOC32SHORT hunks.

You can use ShortRel (http://aminet.net/package/util/cli/ShortRel) to convert those to RELOC32 which does work on...
Forum: support.WinUAE 30 May 2021, 15:09
Replies: 16
Views: 1,965
Posted By mark_k
I think SetCPU...

I think SetCPU (http://aminet.net/package/util/misc/SetCPU) can be used for that. Just make sure your system does not have any RAM outside the lowest 16MB address space.
Forum: support.Hardware 24 May 2021, 23:48
Replies: 5
Views: 505
Posted By mark_k
Maybe the Amiga's clock crystal frequency drifts...

Maybe the Amiga's clock crystal frequency drifts as temperature changes?
Forum: support.Hardware 23 May 2021, 21:33
Replies: 11
Views: 534
Posted By mark_k
The A3000 Install disk apparently contains a...

The A3000 Install disk apparently contains a version of SetClock which works with the A3000 clock chip.
Forum: support.Hardware 08 May 2021, 08:21
Replies: 14
Views: 788
Posted By mark_k
I don't think the A-Max cartridge works with 400K...

I don't think the A-Max cartridge works with 400K or HD Mac drives.

Are you able to confirm your 800K drive works on a real Mac?
Forum: support.Hardware 08 May 2021, 06:29
Replies: 14
Views: 788
Posted By mark_k
Which make and model of Mac floppy drive do you...

Which make and model of Mac floppy drive do you have?
Forum: support.WinUAE 30 April 2021, 19:02
Replies: 10
Views: 845
Posted By mark_k
I meant which emulated Amiga HD controller is the...

I meant which emulated Amiga HD controller is the CF connected to. The default is probably WinUAE's (Windows-)native uaehf.device, which would be like connecting a super-fast SSD to a real Amiga. :)
Forum: support.WinUAE 30 April 2021, 17:47
Replies: 10
Views: 845
Posted By mark_k
How is the emulated CF card connected? If you...

How is the emulated CF card connected? If you emulate an A600 and connect it to the IDE controller you might see realistic transfer speeds.
Forum: support.Hardware 23 February 2021, 19:08
Replies: 8
Views: 387
Posted By mark_k
Set SCSI2SD SCSI ID to 0. Use HDToolbox to set...

Set SCSI2SD SCSI ID to 0. Use HDToolbox to set the last unit flag in its RDB. Try using SetBatt (on Aminet) to reduce SCSI selection timeout and disable multiple LUN support.
Forum: support.WinUAE 21 February 2021, 18:50
Replies: 826
Views: 215,597
Posted By mark_k
Could disconnecting any secondary monitors help?...

Could disconnecting any secondary monitors help? (Maybe if hardware only supports a limited number of planes.)

A couple of Nvidia links:
RegEdit files to enable or disable multi-plane overlays...
Forum: Coders. Asm / Hardware 14 February 2021, 18:20
Replies: 21
Views: 1,899
Posted By mark_k
You could roll your own check, e.g. disable ints,...

You could roll your own check, e.g. disable ints, wait for vblank, read e clock. Wait for a certain number of scanlines, read e clock again. The difference between readings should fall within two...
Forum: Coders. Asm / Hardware 14 February 2021, 08:32
Replies: 21
Views: 1,899
Posted By mark_k
If running under Kickstart 2.0 or later you can...

If running under Kickstart 2.0 or later you can check the EClockFrequency field in ExecBase.
Forum: support.Hardware 24 January 2021, 20:17
Replies: 41
Views: 2,244
Posted By mark_k
Which program did you uae to test the speed?...

Which program did you uae to test the speed? Zorro II bus bandwidth is ~3.58MB/s.
Forum: support.Hardware 24 January 2021, 20:15
Replies: 41
Views: 2,244
Posted By mark_k
Could that be related to the features enable bit?...

Could that be related to the features enable bit? When set, the datasheet says the SCSI phase is latched at each command completion.
Forum: request.Other 11 January 2021, 13:24
Replies: 2
Views: 970
Posted By mark_k
Aminet Set 10 contained Aminet CDs 36 to 39, no...

Aminet Set 10 contained Aminet CDs 36 to 39, no special set discs. Vesalia link (https://www.vesalia.de/e_aminetset10.htm)
Forum: support.WinUAE 03 January 2021, 18:16
Replies: 826
Views: 215,597
Posted By mark_k
Could it be that the transfer length high...

Could it be that the transfer length high register can be read/written by the CPU always, but it is just ignored by the chip unless the features enable bit is set?
Forum: support.WinUAE 03 January 2021, 14:51
Replies: 826
Views: 215,597
Posted By mark_k
The FAS256 datasheet on Bitsavers (path...

The FAS256 datasheet on Bitsavers (path pdf/emulex/asic/FAS256_Fast-Wide_SCSI_Controller_Jan92.pdf), while not a complete programming manual, shows features enable being bit 4 of configuration...
Forum: support.WinUAE 03 January 2021, 14:22
Replies: 826
Views: 215,597
Posted By mark_k
Which register bit# is the Features Enable bit?

Which register bit# is the Features Enable bit?
Forum: support.WinUAE 18 July 2020, 16:38
Replies: 7
Views: 1,544
Posted By mark_k
http://www.winuae.net/files/b/expdump.zip

http://www.winuae.net/files/b/expdump.zip
Forum: support.Hardware 02 July 2020, 17:28
Replies: 43
Views: 2,783
Posted By mark_k
Just run an NTSC/PAL switch program. If you see...

Just run an NTSC/PAL switch program. If you see any visible effect you have the ECS Agnus.

Or use AmigaBASIC to poke address $DFF1DC with 0 or 32.
Forum: Coders. C/C++ 29 June 2020, 14:12
Replies: 5
Views: 1,118
Posted By mark_k
Maybe the hook function is called by...

Maybe the hook function is called by input.device, not your task? Try having the hook function signal your task (which is a Process and so can call DOS functions) and do the printf from there.
Forum: support.Hardware 28 June 2020, 20:33
Replies: 43
Views: 2,783
Posted By mark_k
You only need to have the ECS Agnus chip. Many...

You only need to have the ECS Agnus chip. Many A500s have that, though it wasn't publicised much at the time.

Using a program like Degrader you can get the Amiga to reboot into 50Hz mode, then...
Forum: support.Hardware 14 June 2020, 07:22
Replies: 1
Views: 310
Posted By mark_k
The connector pinout is given in the manual so...

The connector pinout is given in the manual so you could make up your own cable. A simple pin-to-pin adapter should be enough to connect to a VGA monitor.

Manual is on amiga.resource.cx...
Forum: support.WinUAE 14 June 2020, 01:39
Replies: 7
Views: 1,401
Posted By mark_k
That video is a bit hopeless, the guy doesn't use...

That video is a bit hopeless, the guy doesn't use any A2024 modes with it! Just shows Workbench in normal hi-res and high-res laced. The board inside the monitor does de-interlace normal Amiga modes....
Forum: Nostalgia & memories 05 March 2020, 15:55
Replies: 33
Views: 2,424
Posted By mark_k
Are extra level disks allowed?

Are extra level disks allowed?
Forum: support.Other 20 February 2020, 17:53
Replies: 21
Views: 1,372
Posted By mark_k
Do those EA games actually require 1.2 (only)...

Do those EA games actually require 1.2 (only) though? The packaging might have had a sticker on saying requires Kickstart 1.2, but back then some A1000 owners would still be running/booting Kickstart...
Forum: support.Other 19 February 2020, 21:28
Replies: 21
Views: 1,372
Posted By mark_k
What games are there that work with Kickstart 1.2...

What games are there that work with Kickstart 1.2 but not 1.3? I think most "don't work on a 1.3 A500" games are actually because many/most A500s which came with Kickstart 1.3 actually have the ECS...
Forum: support.WinUAE 16 February 2020, 21:50
Replies: 5
Views: 1,244
Posted By mark_k
A pic of the board showing what's printed on the...

A pic of the board showing what's printed on the large square chip underneath the label and a dump of the board's AutoConfig data would be a start.

By the way, the PC286 software was developed by...
Forum: support.WinUAE 01 February 2020, 21:54
Replies: 17
Views: 1,801
Posted By mark_k
Are you able to upload the first (say) couple of...

Are you able to upload the first (say) couple of megabytes of the image file? (You might want to view it in a hex editor before uploading to make sure there's no personal data in it.)

Maybe there...
Forum: support.WinUAE 01 February 2020, 21:25
Replies: 14
Views: 2,354
Posted By mark_k
Kind of related to this thread, I've been...

Kind of related to this thread, I've been experimenting with FFS and 32KB partition block size.

FastFileSystem v36 and later supports block sizes up to 32KB. FFS v39 (or v40?) and later support...
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