[SAL] Assignments/Definitions in SAL

[Leonardo de Moura]

Hi Srihari,

> 1) Does the ";" represent a sequencing of assignments/commands in  
> INITIALIZATION or TRANSITION sections? In A1;A2 is it A2 always  
> performed after A1?

No, A1 and A2 are executed atomically in parallel.

> 2) For a guarded command does the semantics state that all the  
> assignments in "Assignements" are executed atomically? Or can  
> actions from other concurrently composed modules be interleaved  
> with these? eg: if  M1 is "G -> A1 ; A2" and M2 is "A3" can it  
> happen that A3 is executed between A1 and A2 in M1 [] M2?

No, A1 and A2 are executed also atomically in parallel.

Cheers,
Leonardo

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