MIN - RISC-V instruction reference

minMinimum (signed) 
Sets t1 to the smaller of t2 and t3, comparing as signed.
RISC-V manual: min 
Forms  min , ,   
Operands t1 Any integer register, x0 to x31, or its named alias, such as zero, t0 or t6. 
t2 An integer register. It may be the same register as t1. 
t3 An integer register. It may be the same register as t1. 
Branch free, unlike the usual blt and move
 .text
li t0, 18
li t1, 5
# t0=18, t1=5; min writes 5 to t2.
min t2, t0, t1