all of the characters seem to move in 8 pixel squares. was there a way or was the jupiter ace capable of moving in single pixel jumps? i can see from a plotting demo that it can draw lines, circles, etc.
i know this could probably done using bit shifting but could it be done natively?
does the jupiter ace do pixel exact character printing?
does the jupiter ace do pixel exact character printing?
Last edited by the7778 on Fri Nov 25, 2022 5:19 pm, edited 1 time in total.
- 1024MAK
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Re: does the jupiter ace do pixel exact character printing?
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
- 1024MAK
- Posts: 5189
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: does the jupiter ace do pixel exact character printing?
You can I believe redefine the pixel grid for each character. The total RAM for the character pixel data is 1K bytes (this is in addition to the character mapped layout video RAM). Think of it as user defined characters (UDG).
But no, it does not have true bit mapped graphics like a ZX81 hi-res display or a ZX Spectrum.
Mark
But no, it does not have true bit mapped graphics like a ZX81 hi-res display or a ZX Spectrum.
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer being good this year.