SGTZ: RISC-V instruction reference

sgtzSet greater than zero Pseudo-instruction
Sets the first register to 1 if the second is greater than zero, otherwise to 0.
RISC-V manual: slt 
Forms  sgtz ,   
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. 
 .text
li t0, 1
# t0=1; sgtz writes 1 to t2.
sgtz t2, t0