Bit Manipulation Instructions; Shift And Rotate Operations - Motorola MC68030 User Manual

Enhanced 32-811 microprocessor

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Table 3-4. Shift and Rotate Operations

Operand Syntax

Operand Size

3.2.5 Bit Manipulation Instructions

Bit manipulation operations are accomplished using the following instruc-

tions: bit test (BT5T), bit test and set (B5ET), bit test and clear (BCLR), and

bit test and change (BCHG). All bit manipulation operations can be performed

on either registers or memory. The bit number is specified as immediate

data or in a data register. Register operands are 32 bits long, and memory

operands are 8 bits long. In Table 3-5, the summary of the bit manipulation

operations, Z refers to bit 2, the zero bit of the status register.

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