Intel 80C188XL User Manual

Page 338

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C-15

INSTRUCTION SET DESCRIPTIONS

HLT

Halt:

HLT

Causes the CPU to enter the halt
state. The processor leaves the halt
state upon activation of the RESET
line, upon receipt of a non-maskable
interrupt request on NMI, or upon
receipt of a maskable interrupt request
on INTR (if interrupts are enabled).

Instruction Operands:

none

None

AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –

Table C-4. Instruction Set (Continued)

Name

Description

Operation

Flags

Affected

NOTE:

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

ü

the flag is updated after the instruction is executed

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