80C186EC/80C188EC Microprocessor User's Manual

INSTRUCTION SET DESCRIPTIONS
Table C-4. Instruction Set (Continued)
Name Description Operation
Flags
Affected
LOOPNE
LOOPNZ
MOV
NOTE:
Loop While Not Equal:
Loop While Not Zero:
LOOPNE disp8
LOOPNZ disp8
Decrements CX by 1 and transfers
control to the target location if CX is
not 0 and if ZF is clear; otherwise the
next sequential instruction is executed.
Instruction Operands:
LOOPNE short-label
LOOPNZ short-label
Move (Byte or Word):
MOV dest, src
Transfers a byte or a word from the
source operand to the destination
operand.
Instruction Operands:
MOV mem, accum
MOV accum, mem
MOV reg, reg
MOV reg, mem
MOV mem, reg
MOV reg, immed
MOV mem, immed
MOV seg-reg, reg16
MOV seg-reg, mem16
MOV reg16, seg-reg
MOV mem16, seg-reg
(CX) ← (CX) – 1
if
(ZF) = 0 and (CX) ≠ 0
then
(IP) ← (IP) + disp8 (sign-ext to 16 bits)
AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
(dest)←(src) AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
The three symbols used in the Flags Affected column are defined as follows:
– the contents of the flag remain unchanged after the instruction is executed
the contents of the flag is undefined after the instruction is executed
üthe flag is updated after the instruction is executed
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