Stereo System User Manual

A - 66 DSP96002 USER’S MANUAL MOTOROLA
CLR Clear an Operand CLR
Instruction Fields:
(u u u)
Dddd
Dn.L n n n where nnn = 0-7
Timing: 2 + mv oscillator clock cycles
Memory: 1 + mv program words
11 0uuu 1000 1ddd
31 14 13 0
OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA
DATA BUS MOVE FIELD
Operation:
0 → D.L (parallel data bus move)
Assembler Syntax:
CLR D (move syntax - see the MOVE instruction
description.)
Description:
The low portion of the destination operand is cleared to zero. This instruction is implemented by executing
ANDC D,D.
Input Operand(s) Precision: 32-bit integer.
Output Operand Precision: 32-bit integer.
CCR Condition Codes:
C - Not affected.
V - Always cleared.
Z - Always set.
N - Always cleared.
I - Not affected.
LR - Not affected.
–
R - Not affected.
A - Not affected.
ER Status Bits: Not affected.
IER Flags: Not affected.
Instruction Format: CLR D (move syntax - see the MOVE instruction description.)