Excalibur electronic A-MNL-NIOSPROG-01.1 用户手册
80
Altera Corporation
32-Bit Instruction Set
RLC
Rotate Left Through Carry
Operation:
C
← RA[31]
RA
← (RA << 1) : C
Assembler Syntax:
RLC %rA
Example:
RLC %i4 ; rotate %i4 left one bit
Description:
Rotates the bits of RA left by one position through the carry flag.
Condition Codes:
Flags:
C: Bit 31 of RA before rotating
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
0
0
1
0
1
A
N
V
Z
C
–
–
–
∆