Specifications

Instruction Fields
A = Register index of operand rA
B = Register index of operand rB
IMM16 = 16-bit signed 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 0x20
cmpge
Instruction
compare greater than or equal signed
Operation
if ((signed) rA >= (signed) rB)
then rC ← 1
else rC ← 0
Assembler Syntax
cmpge rC, rA, rB
Example
cmpge r6, r7, r8
Description
If rA >= rB, then stores 1 to rC; otherwise stores 0 to rC.
Usage
cmpge performs the signed >= operation of the C programming
language.
Exceptions
None
Instruction Type
I
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 0x08
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0x08 0 0x3a
NII51017
2015.04.02
cmpge
8-23
Instruction Set Reference
Altera Corporation
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