Excalibur electronic A-MNL-NIOSPROG-01.1 用户手册
76
Altera Corporation
32-Bit Instruction Set
PFX
Prefix
Operation:
K
← IMM11 (K set to zero by all other instructions)
Assembler Syntax:
PFX IMM11
Example:
PFX 3 ; affects next instruction
Description:
Loads the 11-bit constant value IMM11 into the K-register. The value in the
K-register may affect the next instruction. K is set to zero after every instruction
other than PFX. The result of two consecutive PFX instructions is not defined.
other than PFX. The result of two consecutive PFX instructions is not defined.
Condition Codes:
Flags: Unaffected
Instruction Format:
i11
Instruction Fields:
IMM11 = 11-bit immediate value
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
0
0
1
1
IMM11
N
V
Z
C
−
−
−
−