Question

[C.Praveen]

Hello,

i have a very simple question.
please CC any reply to me, since im not subscribed to the list

On the same processor i have the following code (initially a = 0)

1. write a = 1
2. read b

if an interrupt occurred after line 1 and before line 2, and that ISR
reads the value of a, is there a chance it can see the value of a as 0?
Hope the question isnt too stupid, but the processor can buffer stores to
memory ? (Does it supply the correct value of a to the isr if it does). if
not, mb wont solve the problem i suppose? its meant for other cpus ?

Thanks,

Praveen C