Altera Nios II User Manual page 193

Chapter 8: Instruction Set Reference
Instruction Set Reference
bge
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
February 2014 Altera Corporation
if ((signed) rA >= (signed) rB)
then PC ← PC + 4 + σ (IMM16)
else PC ← PC + 4
bge rA, rB, label
bge r6, r7, top_of_loop
If (signed) rA >= (signed) rB, then bge transfers program control to the instruction at label. In
the instruction encoding, the offset given by IMM16 is treated as a signed number of bytes
relative to the instruction immediately following bge. The two least-significant bits of IMM16
are always zero, because instruction addresses must be word-aligned.
Misaligned destination address
I
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
branch if greater than or equal signed
16 15 14 13 12 11 10 9
IMM16
8 7 6 5 4 3 2 1
0x0e
Nios II Processor Reference Handbook
8–13
0