Altera Nios II User Manual page 210

8–30
cmpgei
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
Nios II Processor Reference Handbook
compare greater than or equal signed immediate
if ((signed) rA >= (signed) σ (IMM16))
then rB ← 1
else rB ← 0
cmpgei rB, rA, IMM16
cmpgei 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), then cmpgei stores 1 to rB; otherwise stores 0 to rB.
cmpgei performs the signed >= operation of the C programming language.
None
R
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
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
0x08
February 2014 Altera Corporation
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