mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 116

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

ColdFire Instruction Set Architecture Enhancements
SATS
Operation:
Assembler Syntax: SATS Dx
Attributes:
Description: Update the destination register only if the overflow bit of the CCR is set. If the
operand is negative, then set the result to greatest positive number, otherwise set the result
to the largest negative value. The condition codes are set according to the result.
Condition Codes:
Instruction Fields:
2-50
Instruction
Format:
—
X
• Register field—Specifies the destination data register.
N
∗
If CCR.V == 1,
then if Dx[31] == 0,
else Dx[31:0] is unchanged
Z
∗
15
0
Operand sizes supported
then Dx[31:0] = 0x80000000
else Dx[31:0] = 0x7FFFFFFF
14
1
V
0
Opcode present
Size = long
13
0
SATS
C
0
12
0
X Not affected
N Set if the result is negative; cleared otherwise
Z Set if the result is zero; cleared otherwise
V Always cleared
C Always cleared
11
1
MCF5407 User’s Manual
Signed Saturate
10
1
0
9
V2, V3 Core
0
8
No
—
1
7
0
6
0
5
V4 Core
0
4
Yes
.l
0
3
2
SATS
REGISTER
1
0