Search found 6 matches

by Ratatouil
Wed Apr 18, 2018 7:28 pm
Forum: Demos - Requests
Topic: [SRCH] Atari STE Demo
Replies: 2
Views: 4651

Re: [SRCH] Atari STE Demo

Oh ! You made my day Zorro :)
by Ratatouil
Wed Apr 18, 2018 6:09 pm
Forum: Demos - Requests
Topic: [SRCH] Atari STE Demo
Replies: 2
Views: 4651

[SRCH] Atari STE Demo

Hi, I'm looking for an obscur (at least for me) STE demo. I saw it running in a french supermarket probably around 1990. It was may be a specifically made demo for Atari (by demo sceners ?) to run as a demo for customers to show the new features of the STE. The description of the demo : A chessboard...
by Ratatouil
Tue Apr 17, 2018 5:21 pm
Forum: Coding
Topic: [ASM] Fast Muls and Divs Help
Replies: 10
Views: 2821

Re: [ASM] Fast Muls and Divs Help

wietze wrote:The last solution should be viable for both muls and divs; and is actually quite fast, and precise. I think I should use this approach sometime :)


Not sure to understand. To switch to divs mode we should need an additionnal ASR.W ?
by Ratatouil
Tue Apr 17, 2018 10:08 am
Forum: Coding
Topic: [ASM] Fast Muls and Divs Help
Replies: 10
Views: 2821

Re: [ASM] Fast Muls and Divs Help

huh ?!? My answer post has disappeared ?
by Ratatouil
Tue Apr 17, 2018 10:06 am
Forum: Coding
Topic: [ASM] Fast Muls and Divs Help
Replies: 10
Views: 2821

Re: [ASM] Fast Muls and Divs Help

Wow ! You guys are fast and smart. Need to think and study your solutions. This AB*CD problem (4 adds) is a pain but seems inevitable. May be using a 11,4 bits format would reduce a single table to 64Kb (-32Kb to 32Kb) so no need to make 4 adds. Anyway, many thanks guys for your help, much appreciat...
by Ratatouil
Mon Apr 16, 2018 9:28 pm
Forum: Coding
Topic: [ASM] Fast Muls and Divs Help
Replies: 10
Views: 2821

[ASM] Fast Muls and Divs Help

Hi there, My name's David, I live in France and I'm very new registered in this place. I used to own a Commodore 64 in the middle 80s and after at the start of 90s an Atari ST. So long long time ago (gosh I'm old). I also used to exclusively play games on my good old Atari and now I feel like a late...

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