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back2root:ibm-pc-ms-dos:instr:loope-loopz

LOOPE-LOOPZ

LOOPE/LOOPZ - Loop While Equal / Loop While Zero

Decrements CX by 1 (without modifying the flags) and transfers control to “label” if CX != 0 and the Zero Flag is set.

The “label” operand must be within -128 or 127 bytes of the instruction following the loop instruction.

Usage:

	LOOPE	label	;
	LOOPZ	label	;

Modifies flags:

none

Jump ? Clocks Size
Operands 808x 286 386 486 Bytes
label: Y 18 8+m 11+m 6 2
N 5 4 ? 2
back2root/ibm-pc-ms-dos/instr/loope-loopz.txt · Dernière modification : 2023/03/03 23:55 de 127.0.0.1