Hi! On Thu, Feb 28, 2008 at 01:39:51AM +0100, Markus Stehr wrote: > Could someone please provide me with an usable example for an interrupt > for the C64? I have been reading the manual and asked Google for 2 hours > now and i am as clueless as i was 2 hours ago. The file libsrc/dbg/dbgsupp.s contains code to hook the BRK vector and call a C function. Most of it can be used to hook the IRQ vector. There's also condes type 2, which gets automagically called in case of an IRQ. If you want to call C code from such a routine, you will need to save the zero page segment used (as in dbgsupp.s). See libsrc/runtime/callirq.s. It depends on your timing requirements which one of the two is preferable. Regards Uz -- Ullrich von Bassewitz uz@musoftware.de ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo@musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.Received on Thu Feb 28 15:02:27 2008
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