2 ; Ullrich von Bassewitz, 02.06.1998
8 .import __ctype, __cdiff
12 lda __ctype,y ; Get character classification
13 and #$02 ; Is this an upper case char?
15 tya ; Get char back into A
17 sbc __cdiff ; make lower case char
20 L1: tya ; Get char back into A