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back2root:ibm-pc-ms-dos:instr:repne-repnz

REPNE-REPNZ

REPNE/REPNZ - Repeat Not Equal / Repeat Not Zero

Repeats execution of string instructions while CX != 0 and the Zero Flag is clear. 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:

	REPNE
	REPNZ

Modifies flags:

ZF

Clocks Size
Operands 808x 286 386 486 Bytes
none 2 2 2 1
back2root/ibm-pc-ms-dos/instr/repne-repnz.txt · Dernière modification : 2023/02/24 14:16 de frater