In a message dated 12/14/2006 3:08:43 P.M. Central Standard Time,  
[EMAIL PROTECTED] writes:

>For supervisor-call and program interruptions, a nonzero  ILC
identifies in halfwords the length of the instruction that was  last
executed.
 
When the ILC's two bits are both ones, this means that a 6-byte  instruction 
was the one that caused the interrupt.  6 bytes are equal to  three half 
words.  The ILC's contents are the number of half words (and  not the number of 
bytes) in the interrupting instruction.
 
Bill  Fairchild





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