All of this progress on emulating the early SPARCstations raises a good question: We currently have dumps of a bwtwo card (1-bit monochrome display), a cgthree card (8-bit color display), and a cgsix card (accelerated 8-bit color display), but are there any others floating around?

SBus was interesting in that it's almost guaranteed for a card to have a dumpable ROM on it. The reason for this is that the boot monitor and OS both probe the base slot address for an identifying word, as well as the name of the card, at a minimum. The ROMs seen so far range in size from 2 kilobytes (bwtwo and cgthree) to 32 kilobytes (cgsix).

Furthermore, is there anyone out there who has any SBus cards not yet dumped and who has the capability of desoldering and dumping them, or at least sending them off to someone who can do so?

I'm trying to figure out how to dump the SBus roms from the OpenBoot forth prompt, and haven't quite figured it out yet. I don't think the SBus roms map into the sparc memory address space, they must map into one of the other address spaces, and I'm not sure how to probe those from OpenBoot.

LN

the "dump" word has a built-in pager, so it's not always optimal. Here is the script which produces "xxd -p -r" compatible output:

where "3" is the SBus slot number, and 10000 is the size (0x10000) to dump.

I'm looking for some dumps of the Sun framebuffers: particularly of PGX* (which are ATI cards) and GX+/TGX+ (a cgsix variant which can support up to 4MiB of VRAM). Does anybody have them?