mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 115

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

MVZ
Operation:
Assembler Syntax MVZ <ea>y,Dx
Attributes:
Description—Zero-fill the source operand and move to the destination register. For the byte
operation, the source operand is moved to bits 7–0 of the destination and bits 31–8 are filled
with zeros. For the word operation, the source operand is moved to bits 15–0 of the
destination and bits 31–16 are filled with zeros.
Condition Codes:
Instruction Fields:
Instruction
Format:
—
X
Addressing Mode
• Size field—Specifies the size of the operation
• Register field—Specifies a data register as the destination.
• Effective address field—Specifies the source operand; use the following data
0 byte operation
1 word operation
addressing modes:
(d
(Ay) +
– (Ay)
N
0
(Ay)
16
Dy
Ay
,Ay)
15
Z
0
∗
Operand sizes supported
14
1
V
0
Opcode present
(Source with zero fill) → Destination
Size = byte, word
Mode
000
001
010
011
100
101
13
1
MVZ
C
0
12
1
reg. number:Dy
reg. number:Ay
reg. number:Ay
reg. number:Ay
reg. number:Ay
reg. number:Ay
Register
X Not affected
N Always cleared
Z Set if the result is zero; cleared otherwise
V Always cleared
C Always cleared
11
Chapter 2. ColdFire Core
REGISTER
Move with Zero-Fill
10
ColdFire Instruction Set Architecture Enhancements
9
V2, V3 Core
8
1
Addressing Mode
No
—
(d
(d
1
(d
7
#<data>
(xxx).W
(xxx).L
8
8
16
,PC,Xi)
,Ay,Xi)
,PC)
SIZ
E
6
5
MODE
EFFECTIVE ADDRESS
Mode
4
110
111
111
111
111
111
V4 Core
.b, .w
Yes
3
reg. number:Ay
2
REGISTER
Register
000
001
100
010
011
MVZ
1
0
2-49