CLR CLEAR
|
Purpose |
clear a scalar quantity |
|
Format |
opcode dst.wx |
|
Operation |
dst ß 0; |
|
Condition codes |
N ß 0: Z ß 1; V ß 0; C ß C; |
|
Exceptions |
None |
|
Opcodes |
94 CLRB Clear Byte B4 CLRW Clear Word D4 CLRL Clear Long D4 CLRF Clear Floating 7C CLRQ Clear Quad 7C CLRD Clear Double |
|
Description |
The destination operand is replaced by 0. |
|
Notes |
CLRx dst is equivalent to MOVx 0,dst, but is shorter. |
Example 1:
The following program's output is "56780000 0".
.text
main: .word 0
movl $0x12345678, r0
movl $0x56781234, r1
clrl r0
clrw r1
pushl r0
pushl r1
pushal format
calls $3, .printf
halt
.data
format: .asciz "%lX %lX\n"