SRLI - RISC-V instruction reference

srliShift right logical immediate 
Shifts t2 right by an immediate amount, filling with zeros, and stores the result in t1.
RISC-V manual: srli 
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Forms  srli , ,   
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. 
imm6 An unsigned shift count or bit number: 0 to 63 in RV64, or 0 to 31 in RV32. 
This example runs on RV64.
 .text
li t0, 13
# t0=13, immediate 2; srli writes 3 to t2.
srli t2, t0, 2