Recent content by Guy Madison

I have so far built a facility to trace the execution, dump the assembly and all the memory ops to go with it.. I will put it up on Github at some point.

I am just hacking my way through it, hell I am retired.. what else do I have to do all day. :)

Thank you for the attached files.

Ok great, thanks for the heads up. I was looking at the MAME stuff and thought I would just integrate what I needed as I figured it out. I am looking for this... MDU User Manual, Michael Dhuey, June 1988.. its not in the blue book. I use the same 68k emulator as MAME does, Musashi its all in C...

I am tinkering with a Mac IIci emulator of my own for ROM modifications, does anyone know the mappings of the MDU and RBV registers? At boot I see reads of the boot vector followed by a curious write to rom, which looks like its tweaking some control registers. Since the next thing it does is...

Agreed.. a nightmare to read if you are used to using schematic design tools.

How correct is this schematic from BOMARC? I found out on the web...

I think I have a method.. I use Fetch to log into Macintosh Garden, then on my linux box (through ssh via my iMac LOL) I find the exact name of the file and do a "get file" from Fetch.. it seems to work fine.. but its a real hack.

I was able to get my networking up and running, its slow.. but Fetch is crashing on downloading a list of files from repo1.macintoshgarden.org The Mac Iici has 64 MB of memory and I increased the size of the application memory, but it still crashes at some point. Is there another site I can...

Thanks, just a couple of days ago I was able to make it work.. with a ZuluSCSI, the RaSCSI worked fine on my Centris 650. I tested the same boot images with both the RaSCSI and the ZuluSCSI, so it may be termination.

Actually, it does affect RAM. In fact, it affects all components, especially when a computer is turned on and turned off all the time. The components and the board they are installed into warm up and cool down which causes expansion and contraction which is movement. That’s why you have to...

The Slaton modules I installed the other day were tinned, so they probably figured this out. Ages ago I designed a couple motherboards.. (80486 era, so it's been awhile), you pick this stuff up when you sell a few hundred thousand units.

You are correct, thanks for bringing that up. Dissimilar metals have different galvanic voltages, the greater the distance in galvanic voltages causes corrosion at a higher rate.

Yes the Slaton modules work great, other than the long memory test... and it took only 2 days to show up on my doorstep!

So my Mac IIci drive stopped booting, I was planning on updating to a RaSCSI so I guess it was time. After getting it all installed and using the web interface to build some volumes I can't get the Mac to recognize the RaSCSI drives.. I booted to floppy using the disk tools and it doesn't...