IPR-NIOS Altera, IPR-NIOS Datasheet - Page 222

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

Specifications of IPR-NIOS

• License: Renewal License
• Lead Free Status / RoHS Status: Not applicable / Not applicable

8–36
cmpgtui
Nios II Processor Reference Handbook
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Pseudo-instruction:
if ((unsigned) rA > (unsigned) IMMED)
then rB ← 1
else rB ← 0
cmpgtui rB, rA, IMMED
cmpgtui r6, r7, 100
Zero-extends the immediate value IMMED to 32 bits and compares it to the value of rA. If rA >
IMMED, then cmpgtui stores 1 to rB; otherwise stores 0 to rB.
cmpgtui performs the unsigned > operation of the C programming language. The maximum
allowed value of IMMED is 65534. The minimum allowed value is 0.
cmpgtui is implemented using a cmpgeui instruction with an IMM16 immediate value of
IMMED + 1.
compare greater than unsigned immediate
Chapter 8: Instruction Set Reference
December 2010 Altera Corporation
Instruction Set Reference