Pokémon mini Development Documentation

RET = Return from routine

Hex	Mnemonic	Cycles
F8	RET	4
F9	RETE	5
FA	RETS	6

Execute

SC    = Register SC
NB/CB = Register NB or CB
SP    = Register SP (Stack Pointer)
PC    = Register PC (Program Counter)

RET

; RET (Return from a subroutine)

CB = Memory[SP+2]
PC = (Memory[SP+1] SLL 8) + Memory[SP]
SP = SP + 3

RETE

; RETE (Return from an interrupt)

CB = Memory[SP+3]
PC = (Memory[SP+2] SLL 8) + Memory[SP+1]
SC = Memory[SP]
SP = SP + 4

RETS

; RETS (Return from a subroutine and skip 2 bytes)

CB = Memory[SP+2]
PC = (Memory[SP+1] SLL 8) + Memory[SP] + 2
SP = SP + 3

Description

Return from a subroutine or an interrupt.

Conditions

None

Examples

; A = 0x10
; B = 0x10
CALL somefunction
; A = 0x11
; B = 0x0F

(...)

somefunction:
  INC A
  DEC B
  RET
  INC A  ; Never executed

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