.define Ret ! This subroutine stores the returnvalue in the return area. ! This area is in zeropage. ! The size of the object to be returned is in zeropage location ! RETSIZE. ! It also restores the localbases and the stackpointer of the ! invoking procedure. Ret: sty RETSIZE ! save returnsize beq 1f ! the return size is zero lda #0 ! address of returnvalue area (highbyte) ldx #RETURN ! address of returnvalue area (lowbyte) cpy #2 bne 2f jsr Sti ! store word jmp 1f 2: cpy #4 jsr Sdi ! store fourbyte word 1: ldx LB ! get old stackpointer (lowbyte) stx SP+2 lda LB+1 ! get old stackpointer (highbyte) sta SP+1 inc LB inc LB bne 1f inc LB+1 1: jsr Pop ! get old localbase stx LB ! localbase (lowbyte) sta LB+1 ! localbase (highbyte) pha sec txa sbc #BASE sta LBl ! second localbase (lowbyte) pla sbc #0 sta LBl+1 ! second localbase (highbyte) rts