CHAPTER 10 EXTERNAL INTERRUPT CIRCUIT 1 (EDGE)
SETI
:
;-----Interrupt processing routine----------------------------------------------------------------------------------------------------------------------
WARI
CLRB
PUSHW
XCHW
PUSHW
:
User processing
:
POPW
XCHW
POPW
RETI
ENDS
;----------------------------------------------------------------------------------------------------------------------------------------------------------------
END
244
EIR0
A
A,T
A
A
A,T
A
; Enable interrupts.
; Clear external interrupt request flag.