Search found 459 matches

by mk79
Sun Feb 23, 2020 10:57 pm
Forum: Compatibles Corner
Topic: Q68 Crashes
Replies: 22
Views: 574

Re: Q68 Crashes

I often use 10-20 QD vB.05 in parallel, not a single crash. I don't usually use the SBAS thing, so it might be related to that.
by mk79
Fri Feb 21, 2020 12:26 pm
Forum: Hardware
Topic: RGB to VGA
Replies: 18
Views: 660

Re: RGB to VGA

Besides, there is a builtin screen server that outputs the QL-VGA logo if the input signal is lost or invalid. That does employ the full 65Mhz pixel clock. It helps the monitor not lose sync and also helps debugging as when you see the logo you know the output side is working correctly.
by mk79
Fri Feb 21, 2020 12:21 pm
Forum: Hardware
Topic: RGB to VGA
Replies: 18
Views: 660

Re: RGB to VGA

Marcel - with your doubling and tripling, what do the pixels / text look like on the monitor? Exactly as they look on an analog monitor, just a lot bigger as monitors have increased a bit in size ;) Are you using a 65 MHz 'dot' clock for the 1024x768 resolution? Yes. If you want to be pedantic you ...
by mk79
Fri Feb 21, 2020 9:56 am
Forum: Hardware
Topic: RGB to VGA
Replies: 18
Views: 660

Re: RGB to VGA

Yeah, basically 512x256 at 50Hz is no resolution ever supported by TVs or monitors, but you could adjust analog monitors to display it anyway. Many computer monitors these days don't like 50Hz at all, they start working at 60Hz, so scalers that only work on a line-by-line basis might work or might n...
by mk79
Sun Feb 16, 2020 10:40 pm
Forum: General QL Chat
Topic: Help with Composite out
Replies: 49
Views: 1953

Re: Help with Composite out

You can get them for about $24 on eBay. Any particular place I should look for or are the all about the same? Trying to avoid getting another dud. They all look the same but they are definitely not. Not only that, Tobias has one that works for him that doesn't work at all for me. So no, there is no...
by mk79
Mon Feb 10, 2020 2:55 pm
Forum: QL Emulation
Topic: How do you make a QL emulator?
Replies: 72
Views: 2418

Re: How do you make a QL emulator?

At 71, I find the idea of learning Intel assembler daunting, but 'QL > Javascript' code would run considerably faster if coded in such assembly language..... No don't ever code in Intel assembler. As a novice you will never beat a modern compiler. And even as an expert it has become very difficult....
by mk79
Mon Feb 10, 2020 2:19 pm
Forum: The Off-Topic Section
Topic: Today I Received...
Replies: 169
Views: 15172

Re: Today I Received...

M68008 wrote:Ammunition for some QL and Q-emuLator projects:
Good to see you tinkering again :-)
by mk79
Sun Feb 09, 2020 10:10 pm
Forum: QL Emulation
Topic: How do you make a QL emulator?
Replies: 72
Views: 2418

Re: How do you make a QL emulator?

Cudos for the ARSE name ;) I use a traditional FLEX/BISON setup for my stuff, but yeah, using a parser generator is a huge plus. I'm really curious what your books will be about, I always thought writing a book is pretty cool :-) Yeah, I first decided to write "PCQL" as it was called then ...
by mk79
Sun Feb 09, 2020 12:04 am
Forum: QL Emulation
Topic: How do you make a QL emulator?
Replies: 72
Views: 2418

Re: How do you make a QL emulator?

In university I always thought "I will never have to implement my own compiler, why should I learn this?". 20 years later designing and implementing a programming language for our test engineers is a pretty big part of my job, so all that knowledge about abstract syntax trees and stuff cam...