Altera Nios II User Manual page 208

8–28
cmpeqi
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
Nios II Processor Reference Handbook
if (rA σ (IMM16))
then rB ← 1
else rB ← 0
cmpeqi rB, rA, IMM16
cmpeqi r6, r7, 100
Sign-extends the 16-bit immediate value IMM16 to 32 bits and compares it to the value of rA. If
rA == σ (IMM16), cmpeqi stores 1 to rB; otherwise stores 0 to rB.
cmpeqi performs the == operation of the C programming language.
None
I
A = Register index of operand rA
B = Register index of operand rB
IMM16 = 16-bit signed immediate value
24 23 22 21 20 19 18 17
B
compare equal immediate
16 15 14 13 12 11 10 9
IMM16
Chapter 8: Instruction Set Reference
Instruction Set Reference
8 7 6 5 4 3 2 1
0x20
February 2014 Altera Corporation
0