Hello Silverdr, Sunday, January 13, 2013, 11:19:51 AM, you wrote: > On 2005-11-07, at 20:10, Spiro Trikaliotis wrote: >> Hello, >> >> * On Mon, Nov 07, 2005 at 07:23:09PM +0100 email@example.com wrote: >> >>> Does anyone know if there is a known, substantially faster GCR >>> decoding algorithm than the one in the drive's ROM? >> >> in the 157x, there are other functions than in the 154x which are table >> driven. These are much faster. > Is there anything known that would be still faster? AFAIU > ProfessionalDOS does it faster but with help from its hardware. > Anyone heard of faster than 1571 but pure software based decoding? I BELIEVE (but I don't have any direct evidence) that the DolphinDOS modification used part of the additional RAM, and the larger ROM routine to employ a less efficient, but faster GCR decode routine. I have a drive with DolphinDOS - if time permits later, I'll paw through the ROMs and see what I find. Callan Message was sent through the cbm-hackers mailing listReceived on 2013-01-13 01:00:29
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