Masking interrupts?

David Williams
Sun Jul 4 18:31:00 GMT 1999

Disabling interrupts will certainly provide an atomic operation. However I 
don't wish to stop all other interrupts. I only wish to stop one particular 
interrupt while executing a section of code. To disable all interrupts (or 
all to a certain priority level) seems like such a waste! I would like to 
reduce interrupt latencies as much as possible so any disabling of 
interrupts will affect the ability to respond quickly.


From: 	Jyrki O Saarinen[SMTP:jxsaarin@cs.Helsinki.FI]
Sent: 	Monday, July 05, 1999 2:40 AM
To: 	David Williams
Subject: 	Re: Masking interrupts?

I think you should disable interrupts to achieve an atomic operation
instead of using ori instruction directly to the memory-mapped
control register.

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