Texas Instruments MSP430x1xx - Manual (Page 363)

Instruction Set Overview
B-13 Instruction Set Description
BIC[.W] Clear bits in destination
BIC.B Clear bits in destination
Syntax BIC src,dst or BIC.W src,dst
BIC.B src,dst
Operation .NOT.src .AND. dst –> dst
Description The inverted 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: Not affected
Z: Not affected
C: Not affected
V: Not affected
Mode Bits OscOff, CPUOff, and GIE are not affected.
Example The six MSBs of the RAM word LEO are cleared.
BIC #0FC00h,LEO ; Clear 6 MSBs in MEM(LEO)
Example The five MSBs of the RAM byte LEO are cleared.
BIC.B #0F8h,LEO ; Clear 5 MSBs in Ram location LEO
Example The port pins P0 and P1 are cleared.
P0OUT .equ 011h; Definition of port address
P0_0 .equ 01h
P0_1 .equ 02h
BIC.B #P0_0+P0_1,&P0OUT ;Set P0.0 and P0.1 to low