What I did was add some code to my crt0.s for the irq handler. You must write it in ARM code (.arm or .code 32). I'm not sure if you have to save/restore...

... You don't, the compiler has 3 seperate sets of registers for system, irq, and swi modes. I'm not sure of the details, but I am pretty sure that your irq...

As others have said: This is FIRQ mode you're thinking about, which is unused on a regular GBA. There is a R14_irq and an R13_irq, but R0 - R12 are the user...

... Now, that totally rulz! ^_^ Thanks for the info, I never would have thought of it (guess I'm not sneaky enough)....

Hello Jason, Friday, August 03, 2001, 10:26:36 PM, you wrote: ... JW> Now, that totally rulz! ^_^ Thanks for the info, I never would have JW> thought of it...

Hi Banked registers have their own instance for every cpu-mode (system & user having the same non-banked regs. Upon entering an interrupt: - the link register...

... When will your interrupt be an FIQ on the GBA? Aren't all the hardware interrupts IRQ?...

Hello Thomas, Thursday, August 02, 2001, 7:56:30 PM, you wrote: ... T> When will your interrupt be an FIQ on the GBA? Aren't all the T> hardware interrupts...

... Yeah, thanks. I read that, but it got distorted. I rely on my memory being better than that, I must be getting old......

Thanks, I didn't know that ... _________________________________________________________________ Get your FREE download of MSN Explorer at...

How to you setup an irq to run your code when an interrupt occurs does anyone has an example of this? Thanks ... This message was sent using TSTT Webmail. ...