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BITREV
Operation:
Assembler Syntax:
Attributes:
Instruction
15
14
Format:
0
0
The contents of the destination data register are bit-reversed; that is, new Dx[31] = old
Dx[0], new Dx[30] = old Dx[1], ..., new Dx[0] = old Dx[31].
Condition Codes:
Instruction Field:
•
Register field—Specifies the destination data register, Dx.
BITREV
Opcode present
MOTOROLA
Bit Reverse Register
(Supported Starting with ISA A+)
Bit Reversed Dx → Dx
BITREV.L Dx
Size = longword
13
12
11
10
0
0
0
0
Not affected
V2, V3 Core (ISA_A)
No
Chapter 2. ColdFire Core
ColdFire Instruction Set Architecture Enhancements
9
8
7
6
5
0
0
1
1
0
V4 Core (ISA_B)
No
BITREV
4
3
2
1
0
0
0
Register, Dx
V2 Core (ISA_A+)
Yes
2-29
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