From: nowhere@never.at   
      
   Kerr-Mudd,John wrote:   
   ..   
   > need to add cr lf space skipping   
      
   >>  and al,0x4f   
   >>  cmp al,0x40     ;any U/Lcase or Num   
   >>  jb +2           ;skip   
   >>  sub al,0x37     ;add 9 sub 0x40   
   >>                  ;al = 00..0F   
      
   > 10 bytes, with Jxx but no AAx   
   > ;; 1x becomes num           ; 0A 0D 20 30 41 61 66   
   >         or  al,0x20         ; 2A 2D 20 30 61 61 66   
   >         sub al,'a'-0x0A     ; D3 D6 C9 D9 0A 0A 0F  ; 0x57   
   >         jae havehex   
   >         add al,'a'-0x0A-'0' ;  -  -  -  0  x  x  x  ; 0x27   
   >         js  gnc             ; skip cr lf space   
   > havehex:   
      
   hard to make this any shorter and it may be faster than LUT   
   because it avoids memory access.   
   The skip check can't be implied into one branch without   
   SETcc or CMOVcc which may make the code faster but larger.   
   __   
   wolfgang   
      
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