Datasheet

www.ti.com

Instruction Set Description

4.6.2.4 AND

AND[.W] Logical AND of source word with destination word

AND.B Logical AND of source byte with destination byte

Syntax

AND src,dst or AND.W src,dst

AND.B src,dst

Operation src .and. dst → dst

Description The source operand and the destination operand are logically ANDed. The result is

placed into the destination. The source operand is not affected.

Status Bits N: Set if result is negative (MSB = 1), reset if positive (MSB = 0)

Z: Set if result is zero, reset otherwise

C: Set if the result is not zero, reset otherwise. C = (.not. Z)

V: Reset

Mode Bits OSCOFF, CPUOFF, and GIE are not affected.

Example The bits set in R5 (16-bit data) are used as a mask (AA55h) for the word TOM located in

the lower 64KB. If the result is zero, a branch is taken to label TONI. R5.19:16 = 0

MOV #AA55h,R5 ; Load 16-bit mask to R5

AND R5,&TOM ; TOM .and. R5 -> TOM

JZ TONI ; Jump if result 0

... ; Result > 0

or shorter:

AND #AA55h,&TOM ; TOM .and. AA55h -> TOM

JZ TONI ; Jump if result 0

Example A table byte pointed to by R5 (20-bit address) is logically ANDed with R6. R5 is

incremented by 1 after the fetching of the byte. R6.19:8 = 0

AND.B @R5+,R6 ; AND table byte with R6. R5 + 1

167

SLAU144J–December 2004–Revised July 2013 CPUX

Submit Documentation Feedback