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Stepper Test 1.0   [2017]

Stepper Test 1.0 Released by :
ChristopherJam

Release Date :
30 November 2017

Type :
C64 Tool

User rating:awaiting 8 votes (6 left)   See votestatistics

Credits :
Code .... ChristopherJam
Graphics .... ChristopherJam

Download :

Look for downloads on external sites:
 Pokefinder.org


Summary
Submitted by ChristopherJam on 30 November 2017
This tool was developed to assist fastload authors in determining the optimal stepper motor timing for moving the head a single track increment.

It reads the block header for 18,0, then steps 1.5 tracks away and 0.5 tracks back (latter to ensure it's coming from the right direction for a multiple track load). Then it waits until T1+T2 bycles before the block header is due to return, tells the stepper motor to move half a track, waits T1 bycles, steps again, then starts searching for the block header. If any of the next 10 syncs is accompanied by the desired block header, it marks success.

The load and save commands just save a screenshot to/from @:STEPPERTESTDATA (screen memory only, not d800)

(one bycle = 256 CPU cycles; term coined by Krill on IRC earlier this month. Each square on the grid is 4 bycles wide, or around a millisecond).
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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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