BIC

Purpose

perform complemented AND of two integers

Format

opcode mask.rx, dst.mx                                    2 operand

opcode mask.rx, src.rx, dst.wx             3 operand

Operation

dst ßdst AND {NOT mask};                          2 operand

dst ß src AND {NOT mask};             3 operand

Condition codes

N ß dst LSS 0;

Z ß dst EQL 0;

V ß 0;

C ß C;

Exceptions

None

Opcodes

8A       BICB2             Bit Clear Byte; 2 operand

8B        BICB3             Bit Clear Byte; 3 operand

AA       BICW2            Bit Clear Word; 2 operand

AB       BICW3            Bit Clear Word; 3 operand

CA       BICL2             Bit Clear Long; 2 operand

GB       BICL3             Bit Clear Long; 3 operand

Description

In 2 operand format, the destination operand is ANDed with the ones complement of the mask operand and the destination operand is replaced by the result. In 3 operand format, the source operand is ANDed with the l’s ones complement of the mask operand and the destination operand is replaced by the result.

Notes