> > Interestingly you can use the faster speed with UI- if you blank the > screen > > on the C64/128 before doing the disk I/O. > > You should also remember to disable the sprites. And even the longer > timeout is insufficient if all sprites are enabled on a PAL C64. In this > case, almost all CPU cycles will be stolen on a bad line, stopping the C64 > almost completely for 64 microseconds. That's why programs that show > sprites on the screen and use KERNAL routines for disk I/O turn sprites > off while loading. [COPLIN, Nicholas.] Interesting, I always assumed telling the VIC to "blank" automatically disabled all extra accesses.... PLEASE TAKE NOTE: The contents of this email (including any attachments) may be privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this email in error, please advise us immediately (you can contact us by telephone on +61 8 9441 2311 by reverse charge) and then permanently delete this email together with any attachments. We appreciate your co-operation. Whilst Orbital endeavours to take reasonable care to ensure that this email and any attachments are free from viruses or other defects, Orbital does not represent or warrant that such are free from computer viruses or other defects. (C) 2000: Orbital Engine Company (Australia) PTY LTD and its affiliates - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
Archive generated by hypermail 2.1.1.