Texas Instruments MSP430x1xx - Manual (Page 395)

Instruction Set Overview
B-45 Instruction Set Description
* RET Return from subroutine
Syntax RET
Operation @SP
→
PC
SP + 2
→
SP
Emulation MOV @SP+,PC
Description The return address pushed onto the stack by a CALL instruction is moved to
the program counter. The program continues at the code address following the
subroutine call.
Status Bits Status bits are not affected.