Search found 297 matches

by Bosco
Tue Mar 18, 2014 2:36 pm
Forum: Dragon General
Topic: Hello, New here !
Replies: 8
Views: 950

Re: Hello, New here !

Hi Stig.

Welcome. I'm a relative new-comer myself.

I don't think there's much the users on this forum don't know about the Dragon/Coco. :)
by Bosco
Mon Mar 10, 2014 10:02 am
Forum: Hints and Tips
Topic: Flicker
Replies: 4
Views: 1073

Re: Flicker

Hi pser1, zephyr. Thanks for taking a look. I suspected I might be drawing too much but didn't want to rule out other possibilities. I'm experimenting at the moment, getting a feel for what the Dragon can do. I might try drawing to a `back buffer' and flipping the display page base address when the ...
by Bosco
Sun Mar 09, 2014 10:26 pm
Forum: Hints and Tips
Topic: Flicker
Replies: 4
Views: 1073

Flicker

Hi. I've hit a problem with flickering graphics. To demonstrate I've made this short assembly program that puts the Dragon into PMODE 1, then repeatedly clears the screen and draws six coloured blocks vertically in the centre. Despite waiting for the `Field Sync Interrupt' before redrawing I still g...
by Bosco
Sat Mar 08, 2014 8:27 pm
Forum: Discuss This Site
Topic: New Member
Replies: 5
Views: 1621

Re: New Member

Hi zephyr. Thanks for the welcome. :D Year-wise, it would have been Christmas `82. I only knew one other person who had a Dragon but that didn't bother me. In fact, that one other person was a school friend who wrote Quazimodo published by Cablesoft. I'm not sure I ever tried running my Dragon at do...
by Bosco
Fri Mar 07, 2014 11:22 pm
Forum: Discuss This Site
Topic: New Member
Replies: 5
Views: 1621

New Member

As a new member I thought I'd post and say hi. I was given a Dragon 32 when I was about twelve. I remember being fascinated with it and wanting to create my own games. I dabbled with assembly language but never quite managed to finish anything of worth. LOL! I've done various things since, but for t...
by Bosco
Wed Mar 05, 2014 10:35 pm
Forum: Hints and Tips
Topic: LWASM
Replies: 1
Views: 812

Re: LWASM

Ok, I've just discovered a later build of LWASM for Windows (v4.9) and the problem stated above no longer happens. Phew.
by Bosco
Wed Mar 05, 2014 12:28 am
Forum: Hints and Tips
Topic: LWASM
Replies: 1
Views: 812

LWASM

Hi. I'm re-learning to program the Dragon in assembly language after a thirty year break. LOL. ;) Can anyone explain why the following assembly language syntax doesn't (seem to) assemble correctly using LWASM (Win64)? I've reserved a single byte of memory using the instruction `rmb' and the label `s...