ARM Assembly Language Programming - Chapter 3 - The Instruction Set
In the ARM BIC instruction, this operation is applied to all bits in the operands. That is, bit 0 of the is AND ed with NOT bit 0 of the and stored in bit 0 of the , and so on. Examples: BICS R0,R0,R5 ;Zero unwanted bits using R5 BIC R0,R0,#&20 ......