Re: [coldfire-gnu-discuss] MCF547X/8X cache vs TAS instruction.
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Re: [coldfire-gnu-discuss] MCF547X/8X cache vs TAS instruction.



Mike Hench wrote:
Search for the words "once per instruction" in the reference manual
As in interrupts are sampled once per instruction
It is mentioned in multiple places.
Truth is I am assuming that once is between instructions.

It effectively is. The Coldfire exception model is precise -- the interrupt handler will not observe partially updated state.

nathan
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