ANDN - RISC-V instruction reference

andnAND with inverted operand 
Sets t1 to the bitwise AND of t2 and the bitwise NOT of t3.
RISC-V manual: andn 
Forms  andn , ,   
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. 
Clears in t2 every bit that is set in t3
 .text
li t0, 13
li t1, 5
# t0=13, t1=5; andn writes 8 to t2.
andn t2, t0, t1