RET - RISC-V instruction reference

retReturn Pseudo-instruction
Returns from a subroutine by jumping to the address in ra.
RISC-V manual: jalr 
Used in jal, ret and the calling conventionRISC-V assembly
Floating point and the F and D extensionsRISC-V assembly
A subroutine with its arguments in registersRISC-V assembly
Stack arguments and a stack frameRISC-V assembly
Recursion: factorial and FibonacciRISC-V assembly
Print a nonnegative number in bases 2–36RISC-V assembly
Drawing shapes on the screenRISC-V assembly
A bouncing ballRISC-V assembly
Move a square with the keyboardRISC-V assembly
The snake gameRISC-V assembly
 
Forms  ret  
 # la sets ra to the local done label to simulate a function return. ret transfers there, where t2 becomes 1.
.text
li t2, 0
la ra, done
ret
addi t2, t2, 100
done:
addi t2, t2, 1