Search found 1349 matches

by XorA
Tue Jun 29, 2021 11:41 pm
Forum: The Off-Topic Section
Topic: Its coming home
Replies: 7
Views: 2145

Its coming home

Football is apparently coming home :D
by XorA
Tue Jun 29, 2021 3:32 pm
Forum: Hardware
Topic: CPU 68080
Replies: 53
Views: 13230

Re: CPU 68080

So you reckon us QPC2 users are an isolated population?
Let the emulator wars commence :-D
by XorA
Tue Jun 29, 2021 9:48 am
Forum: Hardware
Topic: CPU 68080
Replies: 53
Views: 13230

Re: CPU 68080

So I have restricted myself to experimenting with 68030 and below, which retain the asynchronous bus.
Which also seems to be the actual most common CPU expansion for all the Amiga models! Very little apart from Demos actually uses/needs 68060+
by XorA
Tue Jun 29, 2021 9:47 am
Forum: Hardware
Topic: CPU 68080
Replies: 53
Views: 13230

Re: CPU 68080

But, the Amiga A1200 has a Vampire addon, that attaches to the 68020 CPU and seems to work quite well.
It doesn't attach to CPU, it attaches to the expansion bus which has a pin to disable internal CPU.
by XorA
Mon Jun 28, 2021 9:46 am
Forum: Hardware
Topic: CPU 68080
Replies: 53
Views: 13230

Re: CPU 68080

Forgive me if I got this wrong, but my understanding is that Vampire is not a drop-in replacement CPU; it is an Amiga-specific board, containing, among other things, a disk controller, video and audio components.. The Buffee (formerly Buffy) board, however, is a systems agnostic drop-in replacement...
by XorA
Mon Jun 28, 2021 9:45 am
Forum: Hardware
Topic: CPU 68080
Replies: 53
Views: 13230

Re: CPU 68080

genetika wrote:When a new “super Gold Card” with a 68080 will be available ?

:D
When you design it I guess :-D
by XorA
Mon Jun 14, 2021 9:50 am
Forum: Hardware
Topic: My QL failed
Replies: 19
Views: 5344

Re: My QL failed

That looks like minerva is running and has tried to print a ram error. And you are generating a valid video signal, my money would be on a failed address or data line somewhere around the ram (bad chip, multiplexer chip fail etc)
by XorA
Mon Jun 14, 2021 9:47 am
Forum: General QL Chat
Topic: The Computers that made Britain
Replies: 9
Views: 3067

Re: The Computers that made Britain

Derek_Stewart wrote:HI,

The computers I had in the 1980s are:

Newbrain
Oric 1, Atmos
Memotech MTX range
Sam Coupe
Jupiter Ace

Whether they definevthe British computer culture is open to personal taste.
What we learn from this is never buy the same computer as Derek :-D
by XorA
Thu May 27, 2021 2:12 pm
Forum: QL Emulation
Topic: sQLux Foibles
Replies: 50
Views: 16453

Re: sQLux Foibles

Interesting question is on a BBQL are the pixels always square? (also this goes for the clones). No they are not. In 512x256 QL MODE 4, I double horizontally and triple vertically for VESA standard 1024x768 on 4:3 monitor. That roughly provides the QL aspect ratio seen on CRT historically. Thanks, ...
by XorA
Wed May 26, 2021 10:04 pm
Forum: Software & Programming
Topic: IPC Command RAND_CMD ($14)
Replies: 6
Views: 1483

Re: IPC Command RAND_CMD ($14)

stevepoole wrote: Randomness is a subject of continued research by specialists...
Not really, anything made in last decade has hardware randomness, PN junction noise and other such simple techniques.