mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 108

• Manufacturer Part Number: mcf5407
• Description: Mcf5407 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

ColdFire Instruction Set Architecture Enhancements
CMPI
Operation:
Assembler Syntax: CMPI #<data>, Dx
Attributes:
Description: Operates similarly to CMP, but is used when the source operand is immediate
data. The size of the operation may be specified as byte, word, or longword. The size of the
immediate data matches the operation size.
Instruction Fields:
2-42
Instruction
Format:
—
X
Condition Codes:
• Register field—Destination data register.
• Size field:
N
∗
Note that if size = byte, the immediate is contained in bits [7:0]
of the single extension word. If size = word, the immediate is
contained in bits[15:0] of the single extension word. If
size = long, the immediate is contained in the two extension
words.
Z
∗
15
0
Operand sizes supported
14
0
V
∗
Opcode present
Destination – Immediate Data → cc
Size = byte, word, long
Byte
00
13
0
CMPI
C
∗
12
0
Word
01
X Not affected
N Set if the result is negative; cleared otherwise
Z Set if the result is zero; cleared otherwise
V Set if an overflow occurs; cleared otherwise
C Set if a borrow occurs; cleared otherwise
11
1
MCF5407 User’s Manual
Compare Immediate
10
1
Long
10
0
9
LOWER WORD
UPPER WORD
V2, V3 Core
0
8
Yes
.l
7
SIZE
Dx - #<data>
6
Operation
0
5
0
V4 Core
4
.b, .w, .l
Yes
0
3
2
REGISTER
CMPI
1
0