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Search: Posts Made By: mark_k
Forum: support.Hardware 16 June 2022, 22:07
Replies: 5
Views: 321
Posted By mark_k
The circuitry needed for a genlock is way more...

The circuitry needed for a genlock is way more complicated than for a sampler or MIDI interface. Check the schematics in the Genlock Service Manual...
Forum: Coders. Asm / Hardware 28 May 2022, 07:32
Replies: 12
Views: 1,014
Posted By mark_k
A-Max has a special bootblock that write-enables...

A-Max has a special bootblock that write-enables the Kickstart RAM so it can be used for Mac emulation.

Also see DumpA1000BootROM on Aminet (https://aminet.net/package/util/misc/DumpA1000BootROM).
Forum: Coders. Asm / Hardware 11 May 2022, 11:40
Replies: 398
Views: 81,378
Posted By mark_k
You can map ROM in the $F00000 region containing...

You can map ROM in the $F00000 region containing a RomTag whose init routine adds your memory.
Forum: Coders. Asm / Hardware 10 May 2022, 20:47
Replies: 398
Views: 81,378
Posted By mark_k
You could just emulate a 68000 except with 32-bit...

You could just emulate a 68000 except with 32-bit addressing. Then use AddMemList() to add any memory region you like. That memory wouldn't be present at boot time though, unless you have something...
Forum: Coders. Asm / Hardware 10 May 2022, 13:42
Replies: 398
Views: 81,378
Posted By mark_k
Can you put 1.5MB RAM at $C00000? That should be...

Can you put 1.5MB RAM at $C00000? That should be automatically recognised by Exec.
Forum: support.Apps 06 May 2022, 12:36
Replies: 7
Views: 1,394
Posted By mark_k
How are you trying to unpack the .sit files? Just...

How are you trying to unpack the .sit files? Just double-clicking the file's icon?

Try dragging it onto the StuffIt Expander app icon. Or using the File->Open menu in StuffIt Expander to choose...
Forum: support.Apps 23 April 2022, 08:58
Replies: 7
Views: 1,394
Posted By mark_k
Which version of StuffIt are you using? Older...

Which version of StuffIt are you using? Older ones can't unpack newer archives.

Also, make sure you copy the .sit file to the Mac HD before unpacking it.
Forum: request.Apps 20 April 2022, 22:26
Replies: 12
Views: 1,613
Posted By mark_k
TrackDOS...

TrackDOS (http://aminet.net/package/disk/misc/TrackDOS)?
Forum: support.Amix 20 March 2022, 10:00
Replies: 10
Views: 1,994
Posted By mark_k
What capacity is the SD-emulated SCSI drive?...

What capacity is the SD-emulated SCSI drive? Maybe it needs to be the same as the HDF size? 2000000 sectors here.
Forum: Coders. Asm / Hardware 21 February 2022, 13:58
Replies: 40
Views: 8,038
Posted By mark_k
If I remember correctly, the -S command line...

If I remember correctly, the -S command line argument tells ReSource to use system rendering routines. Maybe that helps with RTG?
Forum: support.Hardware 02 February 2022, 14:11
Replies: 11
Views: 817
Posted By mark_k
The CMS web site...

The CMS web site (http://www.cmsco.gr/home/index.php?option=com_content&view=article&id=4&Itemid=7&lang=En) lists Rockfire USB-Nest DB15-USB converter which has a mode switch. Does your converter...
Forum: request.Other 24 January 2022, 21:00
Replies: 4
Views: 3,083
Posted By mark_k
Many thanks for that!

Many thanks for that!
Forum: support.Hardware 21 January 2022, 22:17
Replies: 45
Views: 3,822
Posted By mark_k
The Zone? EAB FTP server? Or some random file...

The Zone? EAB FTP server? Or some random file sharing site?
Forum: support.Hardware 21 January 2022, 19:48
Replies: 45
Views: 3,822
Posted By mark_k
Yes definitely. If I remember correctly the ROM...

Yes definitely. If I remember correctly the ROM is able to load an updated driver from HD. You'd use the original install disk to put that updated driver there.
Forum: support.WinUAE 09 January 2022, 11:15
Replies: 164
Views: 35,776
Posted By mark_k
I wonder if the DIP Agnus makes any difference?...

I wonder if the DIP Agnus makes any difference? (i.e. put old Denise in A500 with OCS Fat Agnus and see whether issue still present) Would be worth noting the revision of the Denise chip (printed on...
Forum: support.WinUAE 08 January 2022, 22:18
Replies: 164
Views: 35,776
Posted By mark_k
Is that specific to certain early Denise...

Is that specific to certain early Denise revisions? E.g. present with the old no-EHB one?
Forum: support.Hardware 04 January 2022, 20:51
Replies: 45
Views: 3,822
Posted By mark_k
The EPROM is the large chip with ceramic package,...

The EPROM is the large chip with ceramic package, label on it says IC6 V1. Any EPROM programmer should be able to read it.
Forum: support.Apps 28 December 2021, 09:03
Replies: 8
Views: 820
Posted By mark_k
You could try changing NAMESERVER from...

You could try changing NAMESERVER from 192.168.0.1 to 8.8.8.8 (that's Google's public DNS).
Forum: support.Hardware 28 December 2021, 05:15
Replies: 4
Views: 356
Posted By mark_k
You're in luck, all the SCM chipset-based...

You're in luck, all the SCM chipset-based USB-SCSI converters work without installing a special driver.

You have to set the drive's SCSI ID to 0 and maybe (depending on the specific converter...
Forum: support.Hardware 27 December 2021, 23:43
Replies: 4
Views: 356
Posted By mark_k
Upload a pic and/or give the make & model of the...

Upload a pic and/or give the make & model of the converter.

Many models can work with Windows' built-in USB mass storage driver
Forum: support.Hardware 22 December 2021, 12:31
Replies: 45
Views: 3,822
Posted By mark_k
Data in the old/previous 64KB image is not just...

Data in the old/previous 64KB image is not just doubled, each quarter of the data is different in two bytes (probably corresponding to the ExpansionRom data). Maybe changing jumper positions changes...
Forum: support.Hardware 21 December 2021, 21:39
Replies: 45
Views: 3,822
Posted By mark_k
If you can upload both versions I can take a look...

If you can upload both versions I can take a look some time.
Forum: support.Hardware 21 December 2021, 18:00
Replies: 45
Views: 3,822
Posted By mark_k
Those $E90000 hex dumps do look like ROM data.

Those $E90000 hex dumps do look like ROM data.
Forum: support.Hardware 20 December 2021, 21:27
Replies: 45
Views: 3,822
Posted By mark_k
There's supposed to be a game switch on the back,...

There's supposed to be a game switch on the back, isn't there? Could the ROM be disabled if it's set to game mode???
Forum: support.Hardware 13 December 2021, 22:44
Replies: 45
Views: 3,822
Posted By mark_k
scsi.device from Workbench won't work. The...

scsi.device from Workbench won't work.

The driver in the Reference boot ROM should though. amiga.resource.cx says it's not RDB compatible but maybe there were different versions? Can you upload a...
Forum: support.Hardware 03 December 2021, 13:51
Replies: 4
Views: 951
Posted By mark_k
And also dump the EPROM from the controller board.

And also dump the EPROM from the controller board.
Forum: Amiga scene 15 November 2021, 09:45
Replies: 22
Views: 3,948
Posted By mark_k
A PC emulator like PC-Task should work OK (like a...

A PC emulator like PC-Task should work OK (like a 286 PC maybe).
Forum: Retrogaming General Discussion 13 November 2021, 21:20
Replies: 31
Views: 3,643
Posted By mark_k
There's also ADL (Adventure Definition Language)...

There's also ADL (Adventure Definition Language) (http://aminet.net/package/game/text/ADL). I remember playing with that shortly after I got my first Amiga, was quite impressed at one of the sample...
Forum: support.WinUAE 04 November 2021, 09:09
Replies: 3
Views: 1,071
Posted By mark_k
Modern hard drives support access by LBA (logical...

Modern hard drives support access by LBA (logical block address) as well as CHS (cylinder, head, sector). Old drives only support CHS.

All (or almost all) USB-IDE converters only support LBA...
Forum: support.WinUAE 31 October 2021, 00:02
Replies: 9
Views: 1,659
Posted By mark_k
I seem to remember one old Soundtracker version...

I seem to remember one old Soundtracker version (DOC Soundtracker IV???) jumped to a hard-coded address in the Kickstart 1.2 ROM. Maybe another reason for a keyboard routine not working?
Forum: request.Other 02 October 2021, 01:08
Replies: 14
Views: 5,868
Posted By mark_k
https://archive.org/details/dctv-amiga/

https://archive.org/details/dctv-amiga/
Forum: Coders. System 11 September 2021, 11:30
Replies: 22
Views: 5,932
Posted By mark_k
Commodore made a program called EndRun which was...

Commodore made a program called EndRun which was used to run a program after closing the intial CLI window and Workbench screen. It was used by some CDTV titles. May not be what you want though,...
Forum: support.Other 02 August 2021, 02:31
Replies: 13
Views: 2,727
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 02 August 2021, 01:39
Replies: 1,068
Views: 350,266
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 01 August 2021, 23:21
Replies: 13
Views: 2,727
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 01 August 2021, 19:54
Replies: 13
Views: 2,727
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: 1,068
Views: 350,266
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: 1,068
Views: 350,266
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: 2,271
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: 2,271
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???
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