IPR-NIOS Altera, IPR-NIOS Datasheet - Page 216

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IPR-NIOS

Manufacturer Part Number
IPR-NIOS
Description
IP NIOS II MEGACORE RENEW
Manufacturer
Altera
Type
MegaCorer
Datasheet

Specifications of IPR-NIOS

License
Renewal License
Lead Free Status / RoHS Status
Not applicable / Not applicable
8–30
cmpgei
Nios II Processor Reference Handbook
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31
30
29
A
28
27
26
25
24
B
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
23
22
21
20
19
18
compare greater than or equal signed immediate
17
16
15
IMM16
14
13
12
11
10
9
8
Chapter 8: Instruction Set Reference
December 2010 Altera Corporation
7
6
5
Instruction Set Reference
4
0x08
3
2
1
0

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