From: Groepaz (groepaz_at_gmx.net)
Date: 2003-08-23 22:32:47
On Saturday 23 August 2003 21:36, Ullrich von Bassewitz wrote: > Regarding my question concerning the cycles used by the C64 ROM IRQ > handler: Is it possible to use VICE somehow to measure the time spent in > this code? no....maybe ask andreas boose, his private debug built can do this if i recall correctly. however, i would expect the delay beeing long and also unreliable with the rom routines - probably one reason why the builtin rs232 routines are that unreliable aswell. gpz apropos rom routines....since they (in the c64) "simulate" a ACIA anyway, you might simply see how they solved the irq stuff. (the rom routines in the b500 or whatever should give an even better insight :=)) gpz Message was sent through the cbm-hackers mailing list
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