blt+

Branch if Less Than, Predict Taken

blt+ target

Branches to the target address if CR0 reflects condition 'less than', predicting the branch will be taken.

Encoding

Binary Layout

1

LK

AA

LI

BO

BI

BH

A

AT

 

Format B-form

Opcode 0x41E00000

Extension Base

Operands

• target
  Target Address

Registers Altered

CR0, LR

Related

More in Base

Reference

View in PowerISA v3.1C Specification ↗ OPF Power ISA v3.1C

Description

The instruction branches to the specified target address if the less-than condition is set in CR0. The prediction hint indicates that the branch is almost always taken.

Operation

if CR0[LT] then
    branch to target

Programming Note

Use blt+ when branching based on a less-than comparison where the branch is expected to be taken frequently. Ensure CR0 is correctly set with the result of the comparison before using this instruction. The prediction hint can improve performance by reducing pipeline stalls, but it should match the actual branch behavior.