English Amiga Board - View Single Post - Periodical code call, if level 2, 3 and 6 interrupts are occupied?

TCH · 17 July 2021, 22:49

I have a small code snippet which i would like to run periodically during a (non-system-friendly) game, but the game uses all the interrupts i know they can be used for cyclical code calling. Is there any way to do this? Or the only way is to modify the game itself?

Edit: It seems, the game does not use level 7 interrupts, but even if i write my code's entry address into $7c, nothing happens. Can NMI be disabled?

17 July 2021, 22:49	#1
TCH Newbie Amiga programmer Join Date: Jun 2012 Location: Front of my A500+ Age: 38 Posts: 372	Periodical code call, if level 2, 3 and 6 interrupts are occupied? I have a small code snippet which i would like to run periodically during a (non-system-friendly) game, but the game uses all the interrupts i know they can be used for cyclical code calling. Is there any way to do this? Or the only way is to modify the game itself? Edit: It seems, the game does not use level 7 interrupts, but even if i write my code's entry address into $7c, nothing happens. Can NMI be disabled? Last edited by TCH; 17 July 2021 at 23:01. Reason: Level 7