Excalibur electronic A-MNL-NIOSPROG-01.1 用户手册
52
Altera Corporation
32-Bit Instruction Set
FILL8
Byte-Fill
Operation:
R0
← (
b0
RA :
b0
RA :
b0
RA :
b0
RA)
Assembler Syntax:
FILL8 %r0,%rA
Example:
FILL8 %r0,%o3 ; %r0 gets 4 copies of %o3[0..7]
; first operand must be %r0
Description:
The least-significant byte of RA is copied into all four byte-positions in %r0. %r0
is the only allowed destination operand for FILL instructions.
is the only allowed destination operand for FILL instructions.
Condition Codes:
Flags: Unaffected
Instruction Format:
Rw
Instruction Fields
A = Register index of operand RA
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
1
1
1
1
1
0
0
1
0
A
N
V
Z
C
−
−
−
−