bgeu
Branch if greater than or equal (unsigned)
Branches to label if the first register is greater than or equal to the second, comparing as unsigned.
Used in
- Asking a question with a branchRISC-V assembly
- if, else and jump tablesRISC-V assembly
- Reverse a string in placeRISC-V assembly
- A jump tableRISC-V assembly
Forms
bgeu , ,
Operands
t1- Any integer register,
x0tox31, or its named alias, such aszero,t0ort6. t2- An integer register. It may be the same register as
t1. label- A named address in the program, such as the start of a loop or a variable in
.data.
# First bgeu case is taken; second is not. t2 ends at 11 (10 + 1).
.text
li t2, 0
li t0, 7
li t1, 3
bgeu t0, t1, taken
addi t2, t2, 1
j first_done # Skip the other marker unconditionally.
taken:
addi t2, t2, 10
first_done:
li t0, 3
li t1, 7
bgeu t0, t1, missed
addi t2, t2, 1
j second_done # Skip the other marker unconditionally.
missed:
addi t2, t2, 10
second_done:
# t2=11 proves one taken and one untaken path.