MOV R0, #50h
JMP actie
lus: INC R0
actie: CJNE @R0, #0xFF, zet
POP ACC
MOV 70h, A
einde: JMP $

overflow:
	MOV A, PSW
	JB ACC.2, setOV
	JB ACC.7, setOV
	JMP lus

setOV:	MOV 70h, #0xFF
	JMP einde

zet: CJNE @R0, #0xFB, check2
	POP ACC
	POP B
	ADD A,B
	PUSH ACC
	JMP overflow
check2: CJNE @R0, #0xFC, check3
	POP ACC
	POP B
	MUL AB
	PUSH ACC
	JMP overflow
check3: CJNE @R0, #0xFD, check4
	POP B
	POP ACC
	DIV AB
	PUSH ACC
	JMP overflow
check4: CJNE @R0, #0xFE, else
	POP B
	POP ACC
	DIV AB
	PUSH B
	JMP overflow
else: MOV A, @R0
	PUSH ACC
	JMP lus