Specifications

Instruction Fields
A = Register index of operand rA
B = Register index of operand rB
C = Register index of operand rC
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
A B C 0x30
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x30 0 0x3a
cmpltui
Instruction
compare less than unsigned immediate
Operation
if ((unsigned) rA < (unsigned) (0x0000 : IMM16))
then rB ← 1
else rB ← 0
Assembler Syntax
cmpltui rB, rA, IMM16
Example
cmpltui r6, r7, 100
Description
Zero-extends the 16-bit immediate value IMM16 to 32 bits and
compares it to the value of rA. If rA < (0x0000 : IMM16), then
cmpltui stores 1 to rB; otherwise stores 0 to rB.
Usage
cmpltui performs the unsigned < operation of the C program‐
ming language.
Exceptions
None
Instruction Type
I
Instruction Fields
A = Register index of operand rA
B = Register index of operand rB
IMM16 = 16-bit unsigned immediate value
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
A B IMM16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IMM16 0x30
8-32
cmpltui
NII51017
2015.04.02
Altera Corporation
Instruction Set Reference
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