2 ; Christian Groessler, November-2002
4 ; cursor handling, internal function
19 adc SAVMSC ; add start of screen memory
32 ldx cursor ; current cursor setting as requested by the user
38 cont: stx CRSINH ; update system variable
41 and #$7f ; clear high bit / inverse flag
42 finish: sta (OLDADR),y ; update on-screen display
45 turnon: ora #$80 ; set high bit / inverse flag