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A couple questions on Software Interrupts

2005-03-01 by Leighton Rowe

I haven't played around swi's much but most (if not all) swi_handler 
examples that I've seen were written in straight assembly language 
(some even containing "swi" instructions).

However from lpc User Manual, I noticed that 2 registers VICSoftInt 
& VICSoftIntClear are used to force software interrupts.

How different will the swi_handler be should I use the 2 SoftInt 
Registers available? 

Would I be able to use a c-style case structure on VICSoftIntClear?

thanks in advance,
Leighton



However,  and looking through ARM7 Programming guides, there seems 
to be multiple ways of my I'm picking up two ways in which From the 
User Manual

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