Tapejara

Size Attribute of Count Register in LOOP Instruction

Discussion created by Tapejara on May 13, 2011
Latest reply on Jun 19, 2011 by avk

According to the AMD64 manuals:

 

 

"The size of the count register used (CX, ECX, or RCX) depends on the address-size attribute of the LOOP

cc instruction."





What does this mean? In 32-bit environments is this aways ECX?

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