Specifications

8–30 Altera Corporation
Nios II Processor Reference Handbook October 2007
cmpeqi
cmpeqi
compare equal immediate
Operation: if (rA σ (IMM16))
then rB
←
1
else rB
←
0
Assembler Syntax:
cmpeqi rB, rA, IMM16
Example:
cmpeqi r6, r7, 100
Description: 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.
Usage:
cmpeqi performs the == operation of the C programming language.
Instruction Type: I
Instruction Fields: A = Register index of operand rA
B = Register index of operand rB
IMM16 = 16-bit signed immediate value
313029282726252423222120191817161514131211109876543210
A B IMM16 0x20