Texas Instruments MSP430x4xx User Manual

Page 75

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Instruction Set

3-41

RISC 16−Bit CPU

* INC[.W

]

Increment destination

* INC.B

Increment destination

Syntax

INC

dst

or INC.W dst

INC.B

dst

Operation

dst + 1 −> dst

Emulation

ADD

#1,dst

Description

The destination operand is incremented by one. The original contents are lost.

Status Bits

N: Set if result is negative, reset if positive
Z: Set if dst contained 0FFFFh, reset otherwise

Set if dst contained 0FFh, reset otherwise

C: Set if dst contained 0FFFFh, reset otherwise

Set if dst contained 0FFh, reset otherwise

V: Set if dst contained 07FFFh, reset otherwise

Set if dst contained 07Fh, reset otherwise

Mode Bits

OSCOFF, CPUOFF, and GIE are not affected.

Example

The status byte, STATUS, of a process is incremented. When it is equal to 11,
a branch to OVFL is taken.

INC.B

STATUS

CMP.B

#11,STATUS

JEQ

OVFL

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