@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@4
  [5] (byte) main::max#2 ← phi( main/(byte) 0 main::@4/(byte) main::max#3 )
  [5] (byte) main::min#2 ← phi( main/(byte) $ff main::@4/(byte) main::min#3 )
  [5] (byte) main::pos#2 ← phi( main/(byte) 0 main::@4/(byte) main::pos#1 )
  to:main::@2
main::@2: scope:[main]  from main::@1
  [6] (byte) main::pos#1 ← ++ (byte) main::pos#2
  [7] if((byte) main::pos#1>=(byte) main::min#2) goto main::@3
  to:main::@5
main::@5: scope:[main]  from main::@2
  [8] (byte~) main::min#9 ← (byte) main::pos#1
  to:main::@3
main::@3: scope:[main]  from main::@2 main::@5
  [9] (byte) main::min#3 ← phi( main::@2/(byte) main::min#2 main::@5/(byte~) main::min#9 )
  [10] if((byte) main::pos#1<=(byte) main::max#2) goto main::@4
  to:main::@6
main::@6: scope:[main]  from main::@3
  [11] (byte~) main::max#9 ← (byte) main::pos#1
  to:main::@4
main::@4: scope:[main]  from main::@3 main::@6
  [12] (byte) main::max#3 ← phi( main::@3/(byte) main::max#2 main::@6/(byte~) main::max#9 )
  [13] *((const byte*) SCREEN#0) ← (byte) main::min#3
  [14] *((const byte*) SCREEN#0+(byte) 1) ← (byte) main::max#3
  [15] *((const byte*) SCREEN#0+(byte) 2) ← (byte) main::pos#1
  to:main::@1
