BLT

Branch if Less Than

BLT rs1, rs2, offset

Take the branch if rs1 is less than rs2 (signed).

Details

BLT takes the branch if rs1 is less than rs2, using a signed comparison. The branch target is the PC plus the sign-extended B-immediate.

Pseudocode Operation

if (R[rs1] <s R[rs2]) PC += sext(offset);

Example

BLT x10, x11, exit

Encoding

Binary Layout
bimm12hi
31:25
rs2
24:20
rs1
19:15
100
14:12
bimm12lo
11:7
1100011
6:0
 
Format B-Type
Opcode 0x00004063
Extension RV32I

Operands

  • rs1
    Source register 1 (integer)
  • rs2
    Source register 2 (integer)
  • offset
    Offset