Zilog Z8F0130 - Manual (Page 222)

eZ8
™
CPU Core
User Manual
UM012820-0810 RET Instruction
207
RET
Definition
Return.
Syntax
RET
Operation
PC
 @SP
SP
 SP + 2
Description
This instruction returns from a procedure entered by a CALL instruction.
The contents of the location addressed by the Stack Pointer are loaded
into the Program Counter. The next statement executed is the one
addressed by the new contents of the Program Counter. The Stack Pointer
also increments by two.
Flags
Any PUSH instruction executed within the subroutine must be countered
with a POP instruction to guarantee the Stack Pointer is at the correct
location when the RET instruction is executed. Otherwise, the wrong
address loads into the Program Counter and the program cannot oper-
ate properly.
C Unaffected
Z Unaffected
S Unaffected
V Unaffected
D Unaffected
H Unaffected
Note: