Am Donnerstag, 24. Mai 2018, 14:17:50 CEST schrieb smf: > > You will not gain anything by using the various "DMA" modes on an > > IDE/CF disk with a 1MHz 6502 system as the disk is faster than the > > computer even in the disks slowest mode. > > You would gain quite a bit. A 6502 copy loop will take something like 14 > cycles per byte to copy, while using DMA you should be able to average 1 > cycle per byte. > > The fastest possible system would use another CPU for handling the file > system and just DMA the data into and out of RAM. in the chameleon the lowlevel block read/write functions are the bottleneck and speed limiting factor, indeed. -- http://hitmen.eu http://ar.pokefinder.org http://vice-emu.sourceforge.net http://magicdisk.untergrund.net Man who stands on toilet is high on pot.Received on 2018-05-24 15:02:11
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