XPost: comp.sys.cbm, rec.games.video.classic   
   From: payton@paytonnospambyrd.com   
      
   "MagerValp"  wrote in message news:p14sl3   
   fdpq.fsf@hal.cling.gu.se...   
   >>>>>> "PB" == Payton Byrd  writes:   
   >    
   > PB> The C64's slow disk access had nothing to do with the DOS, but was   
   > PB> a side-effect of an industrial engineer getting too happy with the   
   > PB> cutting knife and removing a motherboard trace that the Kernal   
   > PB> programmer was depending on. Before the error was caught over   
   > PB> 100,000 boards had been produced and the Kernal programmer had to   
   > PB> scramble to fix the Kernal in both the C64 and the 1541 to work   
   > PB> without the trace and all of the boards had to have the updated   
   > PB> Kernal retrofitted.   
   >    
   > What? Where on earth did you come up with that?   
   >    
   > IEC is slow because of the 6522 shift register bug, forcing Bob   
   > Russell to implement it with bit-banging when doing the VIC-20 kernal.   
   > He chose a slow but reliable bitrate, as he didn't have time to test   
   > it properly before shipping. IEC is slow on the C64 because management   
   > wanted it to be compatible with the 1540 disk drive. Badlines screwed   
   > that up, and therefore it's even slower on the C64. Fast serial is   
   > available on the C128 + 1571 as they use 6526 chips, with working   
   > shift registers.   
   >    
      
   Bob Russell himself explained at VCF East that the super-fast disk access that   
   was planned for the 64 had to be scrapped because a Japanese industrial   
   engineer removed his traces that he needed to make it work.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)