REPE-REPZ

REPE/REPZ - Repeat Equal / Repeat Zero

Repeats execution of string instructions while CX != 0 and the Zero Flag is set. CX is decremented and the Zero Flag tested after each string operation. The combination of a repeat prefix and a segment override on processors other than the 386 may result in errors if an interrupt occurs before CX=0.

Usage:

	REPE
	REPZ

Modifies flags:

ZF

	Clocks				Size
Operands	808x	286	386	486	Bytes
none	2	2	2		1

see Instructions list, Instruction Timing, 8086 Architecture, CPU

2023/01/05 22:53 · frater

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REPE-REPZ

REPE/REPZ - Repeat Equal / Repeat Zero

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