I already covered this. Burn a new KERNAL and you can have JiffyDOS for the VIC-20. --- Marko_Mäkelä <msmakela@cc.hut.fi> wrote: > On Thu, 15 Mar 2001, Carlsson, Anders wrote: > > > I thought the VIC-20 hardware was inferior, and > can't transfer data as > > fast as the C64 can (new serial devices or > something). > > No, in fact the VIC-20 is faster than the C64. > JiffyDOS doesn't make use > of the fast serial bus (burst mode) on the C64, > because it doesn't > require any hardware modifications. > > The serial bus interface in the 1541 is implemented > using the same chips > as in the VIC-20: the 6522 VIA. Since there is a > 1541 part of JiffyDOS, I > see no technical reason why there couldn't be a > JiffyDOS for the VIC-20. > The only reason I see is commercial: the market > would be too small. I > don't know if there are any copyright reasons why a > 3rd party couldn't > develop JiffyDOS for the VIC-20 by > reverse-engineering its C64 version. > > > Also, it was for compatibility reasons the 1541 > didn't utilize faster > > routines from the beginning. I might be wrong, but > I think I've read > > about this before. > > There have been some rumours that Commodore > originally planned to use the > serial interface of the 6522 VIA, but failed and > decided to use programmed > I/O pins instead. > > Marko > > - > This message was sent through the cbm-hackers > mailing list. > To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi. ===== Get a FREE 6Mb webmail box from go6502! - http://www.geocities.com/profdredd As low as 2.99% Intro APR from NextCard! - http://www.nextcard.com/index6.html?ref=aff0074521 PayPal is the FAST FREE and SECURE way to send money! - https://secure.paypal.x.com/refer/pal=profdredd%40yahoo.com __________________________________________________ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/ - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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