BLTU

Branch if Less Than Unsigned

BLTU rs1, rs2, offset

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

Details

BLTU takes the branch if rs1 is less than rs2, treating both as unsigned integers. The branch target is the PC plus the sign-extended B-immediate.

Pseudocode Operation

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

Example

BLTU a0, a1, 0

Encoding

Binary Layout
bimm12hi
31:25
rs2
24:20
rs1
19:15
110
14:12
bimm12lo
11:7
1100011
6:0
 
Format B-Type
Opcode 0x00006063
Extension RV32I

Operands

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