email@example.com wrote: Hello Ruud, > Does anyone happen to know how much time the 1541 needs/takes to perform a step > with the head? I cannot dig it out of my SRC. Yes. The delay between (half) steps stored in Timer 1 of VIA#2 ($1C06/1C07). By default it is $3A00 (14848), ca. 15 ms. The registers filled by controller reset routine ($F259). Most copier and loader programs adjust this to $0F00 (3840). The stepping job starting at $FA05. Although not everytime controller uses fixed delay. The head is accelerated and deccelerated appropriately ($5E and $5F constants). Most of fastformatters don't uses that, so when head is at the end phase of positioning it is floating for a while, and garbage data written some time. Hey man's! I'me ready with commented HTML version of 1541 rom listing. Who would like to mirror/host it? Frank P.S.: Your date in mail still 100 year (before or after what?) :-) Check out. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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