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Instruction Set Description

4.6.3.6 BISX

BISX.A Set bits set in source address-word in destination address-word

BISX.[W] Set bits set in source word in destination word

BISX.B Set bits set in source byte in destination byte

BISX.A src,dst

Syntax

BISX src,dst or BISX.W src,dst

BISX.B src,dst

Operation src .or. dst → dst

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

into the destination. The source operand is not affected. Both operands may be located

in the full address space.

Status Bits N: Not affected

Z: Not affected

C: Not affected

V: Not affected

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

Example Bits 16 and 15 of R5 (20-bit data) are set to one.

BISX.A #018000h,R5 ; Set R5.16:15 bits

Example A table word pointed to by R5 (20-bit address) is used to set bits in R7.

BISX.W @R5,R7 ; Set bits in R7

Example A table byte pointed to by R5 (20-bit address) is used to set bits in output Port1.

BISX.B @R5,&P1OUT ; Set I/O port P1 bits

221

SLAU144J–December 2004–Revised July 2013 CPUX

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