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cc65/libsrc/plus4/klisten.s

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;
; Ullrich von Bassewitz, 22.11.2002
;
; LISTEN replacement function
;
.export LISTEN
.include "plus4.inc"
.segment "LOWCODE" ; Must go into low memory
.proc LISTEN
sta ENABLE_ROM ; Enable the ROM
jsr $FFB1 ; Call the ROM routine
sta ENABLE_RAM ; Switch back to RAM
rts ; Return to caller
.endproc