Fixing pointer addition (word*~) bsearch16u::$7 ← (word*) bsearch16u::items + (byte~) bsearch16u::$6
Fixing pointer addition (word*~) bsearch16u::$15 ← (word*) bsearch16u::pivot + (number) 1
Fixing pointer addition (word*~) bsearch16u::$1 ← (word*) bsearch16u::items - (number) 1
Fixing pointer array-indexing *((word*) utoa::digit_values + (byte) utoa::digit)
Fixing pointer array-indexing *((dword*) ultoa::digit_values + (byte) ultoa::digit)
Warning! Adding boolean cast to non-boolean condition *((byte*) strcpy::src)
Warning! Adding boolean cast to non-boolean condition *((byte*) print_str_lines::str)
Warning! Adding boolean cast to non-boolean condition (byte) print_str_lines::ch
Warning! Adding boolean cast to non-boolean condition *((byte*) print_str::str)
Warning! Adding boolean cast to non-boolean condition *((byte*) print_str_at::str)
Warning! Adding boolean cast to non-boolean sub-expression (byte) print_str_lines::ch
Identified constant variable (byte*) HEAP_TOP
Inlined call (byte~) vicSelectGfxBank::$0 ← call toDd00 (byte*) vicSelectGfxBank::gfx 
Culled Empty Block (label) @1
Culled Empty Block (label) @2
Culled Empty Block (label) @3
Culled Empty Block (label) @4
Culled Empty Block (label) clock::@1
Culled Empty Block (label) @5
Culled Empty Block (label) @6
Culled Empty Block (label) @7
Culled Empty Block (label) @8
Culled Empty Block (label) @9
Culled Empty Block (label) @10
Culled Empty Block (label) @11
Culled Empty Block (label) @12
Culled Empty Block (label) @13
Culled Empty Block (label) @14
Culled Empty Block (label) @15
Culled Empty Block (label) @16
Culled Empty Block (label) @17
Culled Empty Block (label) @18
Culled Empty Block (label) @19
Culled Empty Block (label) @20
Culled Empty Block (label) @21
Culled Empty Block (label) @22
Culled Empty Block (label) @23
Culled Empty Block (label) @24
Culled Empty Block (label) @25
Culled Empty Block (label) @26
Culled Empty Block (label) @27
Culled Empty Block (label) @28
Culled Empty Block (label) @29
Culled Empty Block (label) @30
Culled Empty Block (label) @31
Culled Empty Block (label) @32
Culled Empty Block (label) @33
Culled Empty Block (label) @34
Culled Empty Block (label) @35
Culled Empty Block (label) @36
Culled Empty Block (label) @37
Culled Empty Block (label) @38
Culled Empty Block (label) @39
Culled Empty Block (label) @40
Culled Empty Block (label) @41
Culled Empty Block (label) @42
Culled Empty Block (label) main::@4
Culled Empty Block (label) main::@3
Culled Empty Block (label) main::@5
Culled Empty Block (label) main::@6

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@43

(dword()) clock()
clock: scope:[clock]  from main::@2
  (number~) clock::$0 ← (number) $ffffffff - *((const dword*) CIA2_TIMER_AB)
  (dword) clock::return#0 ← (number~) clock::$0
  to:clock::@return
clock::@return: scope:[clock]  from clock
  (dword) clock::return#3 ← phi( clock/(dword) clock::return#0 )
  (dword) clock::return#1 ← (dword) clock::return#3
  return 
  to:@return

(void()) clock_start()
clock_start: scope:[clock_start]  from main
  *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
  *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
  *((const dword*) CIA2_TIMER_AB) ← (number) $ffffffff
  *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
  *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
  to:clock_start::@return
clock_start::@return: scope:[clock_start]  from clock_start
  return 
  to:@return

(void()) print_word_at((word) print_word_at::w , (byte*) print_word_at::at)
print_word_at: scope:[print_word_at]  from print_dword_at print_dword_at::@1
  (byte*) print_word_at::at#2 ← phi( print_dword_at/(byte*) print_word_at::at#0 print_dword_at::@1/(byte*) print_word_at::at#1 )
  (word) print_word_at::w#2 ← phi( print_dword_at/(word) print_word_at::w#0 print_dword_at::@1/(word) print_word_at::w#1 )
  (byte~) print_word_at::$0 ← > (word) print_word_at::w#2
  (byte) print_byte_at::b#0 ← (byte~) print_word_at::$0
  (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2
  call print_byte_at 
  to:print_word_at::@1
print_word_at::@1: scope:[print_word_at]  from print_word_at
  (byte*) print_word_at::at#3 ← phi( print_word_at/(byte*) print_word_at::at#2 )
  (word) print_word_at::w#3 ← phi( print_word_at/(word) print_word_at::w#2 )
  (byte~) print_word_at::$2 ← < (word) print_word_at::w#3
  (byte*~) print_word_at::$3 ← (byte*) print_word_at::at#3 + (number) 2
  (byte) print_byte_at::b#1 ← (byte~) print_word_at::$2
  (byte*) print_byte_at::at#1 ← (byte*~) print_word_at::$3
  call print_byte_at 
  to:print_word_at::@2
print_word_at::@2: scope:[print_word_at]  from print_word_at::@1
  to:print_word_at::@return
print_word_at::@return: scope:[print_word_at]  from print_word_at::@2
  return 
  to:@return

(void()) print_dword_at((dword) print_dword_at::dw , (byte*) print_dword_at::at)
print_dword_at: scope:[print_dword_at]  from main::@8
  (byte*) print_dword_at::at#1 ← phi( main::@8/(byte*) print_dword_at::at#0 )
  (dword) print_dword_at::dw#1 ← phi( main::@8/(dword) print_dword_at::dw#0 )
  (word~) print_dword_at::$0 ← > (dword) print_dword_at::dw#1
  (word) print_word_at::w#0 ← (word~) print_dword_at::$0
  (byte*) print_word_at::at#0 ← (byte*) print_dword_at::at#1
  call print_word_at 
  to:print_dword_at::@1
print_dword_at::@1: scope:[print_dword_at]  from print_dword_at
  (byte*) print_dword_at::at#2 ← phi( print_dword_at/(byte*) print_dword_at::at#1 )
  (dword) print_dword_at::dw#2 ← phi( print_dword_at/(dword) print_dword_at::dw#1 )
  (word~) print_dword_at::$2 ← < (dword) print_dword_at::dw#2
  (byte*~) print_dword_at::$3 ← (byte*) print_dword_at::at#2 + (number) 4
  (word) print_word_at::w#1 ← (word~) print_dword_at::$2
  (byte*) print_word_at::at#1 ← (byte*~) print_dword_at::$3
  call print_word_at 
  to:print_dword_at::@2
print_dword_at::@2: scope:[print_dword_at]  from print_dword_at::@1
  to:print_dword_at::@return
print_dword_at::@return: scope:[print_dword_at]  from print_dword_at::@2
  return 
  to:@return

(void()) print_byte_at((byte) print_byte_at::b , (byte*) print_byte_at::at)
print_byte_at: scope:[print_byte_at]  from print_word_at print_word_at::@1
  (byte*) print_byte_at::at#2 ← phi( print_word_at/(byte*) print_byte_at::at#0 print_word_at::@1/(byte*) print_byte_at::at#1 )
  (byte) print_byte_at::b#2 ← phi( print_word_at/(byte) print_byte_at::b#0 print_word_at::@1/(byte) print_byte_at::b#1 )
  (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (number) 4
  (byte) print_char_at::ch#0 ← *((const byte*) print_hextab + (byte~) print_byte_at::$0)
  (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2
  call print_char_at 
  to:print_byte_at::@1
print_byte_at::@1: scope:[print_byte_at]  from print_byte_at
  (byte*) print_byte_at::at#3 ← phi( print_byte_at/(byte*) print_byte_at::at#2 )
  (byte) print_byte_at::b#3 ← phi( print_byte_at/(byte) print_byte_at::b#2 )
  (number~) print_byte_at::$2 ← (byte) print_byte_at::b#3 & (number) $f
  (byte*~) print_byte_at::$3 ← (byte*) print_byte_at::at#3 + (number) 1
  (byte) print_char_at::ch#1 ← *((const byte*) print_hextab + (number~) print_byte_at::$2)
  (byte*) print_char_at::at#1 ← (byte*~) print_byte_at::$3
  call print_char_at 
  to:print_byte_at::@2
print_byte_at::@2: scope:[print_byte_at]  from print_byte_at::@1
  to:print_byte_at::@return
print_byte_at::@return: scope:[print_byte_at]  from print_byte_at::@2
  return 
  to:@return

(void()) print_char_at((byte) print_char_at::ch , (byte*) print_char_at::at)
print_char_at: scope:[print_char_at]  from print_byte_at print_byte_at::@1
  (byte*) print_char_at::at#2 ← phi( print_byte_at/(byte*) print_char_at::at#0 print_byte_at::@1/(byte*) print_char_at::at#1 )
  (byte) print_char_at::ch#2 ← phi( print_byte_at/(byte) print_char_at::ch#0 print_byte_at::@1/(byte) print_char_at::ch#1 )
  *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2
  to:print_char_at::@return
print_char_at::@return: scope:[print_char_at]  from print_char_at
  return 
  to:@return

(void()) main()
main: scope:[main]  from @43
  call clock_start 
  to:main::@7
main::@7: scope:[main]  from main
  to:main::@1
main::@1: scope:[main]  from main::@7 main::@9
  if(true) goto main::@2
  to:main::@return
main::@2: scope:[main]  from main::@1
  call clock 
  (dword) clock::return#2 ← (dword) clock::return#1
  to:main::@8
main::@8: scope:[main]  from main::@2
  (dword) clock::return#4 ← phi( main::@2/(dword) clock::return#2 )
  (dword~) main::$1 ← (dword) clock::return#4
  (dword) print_dword_at::dw#0 ← (dword~) main::$1
  (byte*) print_dword_at::at#0 ← (const byte*) SCREEN
  call print_dword_at 
  to:main::@9
main::@9: scope:[main]  from main::@8
  to:main::@1
main::@return: scope:[main]  from main::@1
  return 
  to:@return
@43: scope:[]  from @begin
  call main 
  to:@44
@44: scope:[]  from @43
  to:@end
@end: scope:[]  from @44

SYMBOL TABLE SSA
(label) @43
(label) @44
(label) @begin
(label) @end
(const dword*) CIA2_TIMER_AB = (dword*)(number) $dd04
(const byte*) CIA2_TIMER_A_CONTROL = (byte*)(number) $dd0e
(const byte*) CIA2_TIMER_B_CONTROL = (byte*)(number) $dd0f
(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES = (number) 0
(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A = (number) $40
(const byte) CIA_TIMER_CONTROL_CONTINUOUS = (number) 0
(const byte) CIA_TIMER_CONTROL_START = (number) 1
(const byte) CIA_TIMER_CONTROL_STOP = (number) 0
(const byte) RADIX::BINARY = (number) 2
(const byte) RADIX::DECIMAL = (number) $a
(const byte) RADIX::HEXADECIMAL = (number) $10
(const byte) RADIX::OCTAL = (number) 8
(const byte*) SCREEN = (byte*)(number) $400
(dword()) clock()
(number~) clock::$0
(label) clock::@return
(dword) clock::return
(dword) clock::return#0
(dword) clock::return#1
(dword) clock::return#2
(dword) clock::return#3
(dword) clock::return#4
(void()) clock_start()
(label) clock_start::@return
(void()) main()
(dword~) main::$1
(label) main::@1
(label) main::@2
(label) main::@7
(label) main::@8
(label) main::@9
(label) main::@return
(void()) print_byte_at((byte) print_byte_at::b , (byte*) print_byte_at::at)
(byte~) print_byte_at::$0
(number~) print_byte_at::$2
(byte*~) print_byte_at::$3
(label) print_byte_at::@1
(label) print_byte_at::@2
(label) print_byte_at::@return
(byte*) print_byte_at::at
(byte*) print_byte_at::at#0
(byte*) print_byte_at::at#1
(byte*) print_byte_at::at#2
(byte*) print_byte_at::at#3
(byte) print_byte_at::b
(byte) print_byte_at::b#0
(byte) print_byte_at::b#1
(byte) print_byte_at::b#2
(byte) print_byte_at::b#3
(void()) print_char_at((byte) print_char_at::ch , (byte*) print_char_at::at)
(label) print_char_at::@return
(byte*) print_char_at::at
(byte*) print_char_at::at#0
(byte*) print_char_at::at#1
(byte*) print_char_at::at#2
(byte) print_char_at::ch
(byte) print_char_at::ch#0
(byte) print_char_at::ch#1
(byte) print_char_at::ch#2
(void()) print_dword_at((dword) print_dword_at::dw , (byte*) print_dword_at::at)
(word~) print_dword_at::$0
(word~) print_dword_at::$2
(byte*~) print_dword_at::$3
(label) print_dword_at::@1
(label) print_dword_at::@2
(label) print_dword_at::@return
(byte*) print_dword_at::at
(byte*) print_dword_at::at#0
(byte*) print_dword_at::at#1
(byte*) print_dword_at::at#2
(dword) print_dword_at::dw
(dword) print_dword_at::dw#0
(dword) print_dword_at::dw#1
(dword) print_dword_at::dw#2
(const byte*) print_hextab = (string) "0123456789abcdef"z
(void()) print_word_at((word) print_word_at::w , (byte*) print_word_at::at)
(byte~) print_word_at::$0
(byte~) print_word_at::$2
(byte*~) print_word_at::$3
(label) print_word_at::@1
(label) print_word_at::@2
(label) print_word_at::@return
(byte*) print_word_at::at
(byte*) print_word_at::at#0
(byte*) print_word_at::at#1
(byte*) print_word_at::at#2
(byte*) print_word_at::at#3
(word) print_word_at::w
(word) print_word_at::w#0
(word) print_word_at::w#1
(word) print_word_at::w#2
(word) print_word_at::w#3

Adding number conversion cast (unumber) $ffffffff in (number~) clock::$0 ← (number) $ffffffff - *((const dword*) CIA2_TIMER_AB)
Adding number conversion cast (unumber) clock::$0 in (number~) clock::$0 ← (unumber)(number) $ffffffff - *((const dword*) CIA2_TIMER_AB)
Adding number conversion cast (unumber) $ffffffff in *((const dword*) CIA2_TIMER_AB) ← (number) $ffffffff
Adding number conversion cast (unumber) 2 in (byte*~) print_word_at::$3 ← (byte*) print_word_at::at#3 + (number) 2
Adding number conversion cast (unumber) 4 in (byte*~) print_dword_at::$3 ← (byte*) print_dword_at::at#2 + (number) 4
Adding number conversion cast (unumber) 4 in (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (number) 4
Adding number conversion cast (unumber) $f in (number~) print_byte_at::$2 ← (byte) print_byte_at::b#3 & (number) $f
Adding number conversion cast (unumber) print_byte_at::$2 in (number~) print_byte_at::$2 ← (byte) print_byte_at::b#3 & (unumber)(number) $f
Adding number conversion cast (unumber) 1 in (byte*~) print_byte_at::$3 ← (byte*) print_byte_at::at#3 + (number) 1
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast *((const dword*) CIA2_TIMER_AB) ← (unumber)(number) $ffffffff
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (dword*) 56580
Simplifying constant pointer cast (byte*) 56590
Simplifying constant pointer cast (byte*) 56591
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast $ffffffff
Simplifying constant integer cast $ffffffff
Simplifying constant integer cast 2
Simplifying constant integer cast 4
Simplifying constant integer cast 4
Simplifying constant integer cast $f
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (dword) $ffffffff
Finalized unsigned number type (dword) $ffffffff
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 4
Finalized unsigned number type (byte) 4
Finalized unsigned number type (byte) $f
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to dword in (unumber~) clock::$0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB)
Inferred type updated to byte in (unumber~) print_byte_at::$2 ← (byte) print_byte_at::b#3 & (byte) $f
Alias (dword) clock::return#0 = (dword~) clock::$0 (dword) clock::return#3 (dword) clock::return#1 
Alias (byte) print_byte_at::b#0 = (byte~) print_word_at::$0 
Alias (word) print_word_at::w#2 = (word) print_word_at::w#3 
Alias (byte*) print_word_at::at#2 = (byte*) print_word_at::at#3 
Alias (byte) print_byte_at::b#1 = (byte~) print_word_at::$2 
Alias (byte*) print_byte_at::at#1 = (byte*~) print_word_at::$3 
Alias (word) print_word_at::w#0 = (word~) print_dword_at::$0 
Alias (dword) print_dword_at::dw#1 = (dword) print_dword_at::dw#2 
Alias (byte*) print_dword_at::at#1 = (byte*) print_dword_at::at#2 
Alias (word) print_word_at::w#1 = (word~) print_dword_at::$2 
Alias (byte*) print_word_at::at#1 = (byte*~) print_dword_at::$3 
Alias (byte) print_byte_at::b#2 = (byte) print_byte_at::b#3 
Alias (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#3 
Alias (byte*) print_char_at::at#1 = (byte*~) print_byte_at::$3 
Alias (dword) clock::return#2 = (dword) clock::return#4 
Alias (dword) print_dword_at::dw#0 = (dword~) main::$1 
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (dword) print_dword_at::dw#1 (dword) print_dword_at::dw#0
Identical Phi Values (byte*) print_dword_at::at#1 (byte*) print_dword_at::at#0
Successful SSA optimization Pass2IdenticalPhiElimination
Constant (const byte*) print_dword_at::at#0 = SCREEN
Successful SSA optimization Pass2ConstantIdentification
Constant (const byte*) print_word_at::at#0 = print_dword_at::at#0
Successful SSA optimization Pass2ConstantIdentification
if() condition always true - replacing block destination [51] if(true) goto main::@2
Successful SSA optimization Pass2ConstantIfs
Simplifying constant evaluating to zero (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES in [5] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
Simplifying constant evaluating to zero (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS in [6] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_STOP|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
Successful SSA optimization PassNSimplifyConstantZero
Simplifying expression containing zero CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A in [6] *((const byte*) CIA2_TIMER_B_CONTROL) ← (byte) 0|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
Simplifying expression containing zero CIA_TIMER_CONTROL_START in [8] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
Simplifying expression containing zero CIA_TIMER_CONTROL_START|CIA_TIMER_CONTROL_CONTINUOUS in [9] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS|(const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
Successful SSA optimization PassNSimplifyExpressionWithZero
Simplifying expression containing zero CIA_TIMER_CONTROL_START in [9] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) CIA_TIMER_CONTROL_STOP
Eliminating unused constant (const byte) CIA_TIMER_CONTROL_CONTINUOUS
Eliminating unused constant (const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
Successful SSA optimization PassNEliminateUnusedVars
Removing unused block main::@return
Successful SSA optimization Pass2EliminateUnusedBlocks
Constant right-side identified [19] (byte*) print_word_at::at#1 ← (const byte*) print_dword_at::at#0 + (byte) 4
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const byte*) print_word_at::at#1 = print_dword_at::at#0+4
Successful SSA optimization Pass2ConstantIdentification
Inlining constant with var siblings (const byte*) print_word_at::at#0
Inlining constant with var siblings (const byte*) print_word_at::at#1
Constant inlined print_dword_at::at#0 = (const byte*) SCREEN
Constant inlined print_word_at::at#1 = (const byte*) SCREEN+(byte) 4
Constant inlined print_word_at::at#0 = (const byte*) SCREEN
Successful SSA optimization Pass2ConstantInlining
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @43
Adding NOP phi() at start of @44
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@7
Adding NOP phi() at start of main::@1
Adding NOP phi() at start of main::@2
Adding NOP phi() at start of main::@9
Adding NOP phi() at start of print_dword_at::@2
Adding NOP phi() at start of print_word_at::@2
Adding NOP phi() at start of print_byte_at::@2
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to clock_start:6 clock:10 print_dword_at:13 
Calls in [print_dword_at] to print_word_at:17 print_word_at:20 
Calls in [print_word_at] to print_byte_at:28 print_byte_at:33 
Calls in [print_byte_at] to print_char_at:42 print_char_at:48 

Created 6 initial phi equivalence classes
Coalesced [16] print_word_at::w#4 ← print_word_at::w#0
Coalesced [19] print_word_at::w#5 ← print_word_at::w#1
Coalesced [26] print_byte_at::b#4 ← print_byte_at::b#0
Coalesced [27] print_byte_at::at#4 ← print_byte_at::at#0
Coalesced [31] print_byte_at::b#5 ← print_byte_at::b#1
Coalesced [32] print_byte_at::at#5 ← print_byte_at::at#1
Coalesced [40] print_char_at::ch#3 ← print_char_at::ch#0
Coalesced [41] print_char_at::at#3 ← print_char_at::at#0
Coalesced [46] print_char_at::ch#4 ← print_char_at::ch#1
Coalesced [47] print_char_at::at#4 ← print_char_at::at#1
Coalesced down to 6 phi equivalence classes
Culled Empty Block (label) @44
Culled Empty Block (label) main::@7
Culled Empty Block (label) main::@1
Culled Empty Block (label) main::@9
Culled Empty Block (label) print_dword_at::@2
Culled Empty Block (label) print_word_at::@2
Culled Empty Block (label) print_byte_at::@2
Renumbering block @43 to @1
Renumbering block main::@2 to main::@1
Renumbering block main::@8 to main::@2
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@1

FINAL CONTROL FLOW GRAPH
@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()

(void()) main()
main: scope:[main]  from @1
  [4] phi()
  [5] call clock_start 
  to:main::@1
main::@1: scope:[main]  from main main::@2
  [6] phi()
  [7] call clock 
  [8] (dword) clock::return#2 ← (dword) clock::return#0
  to:main::@2
main::@2: scope:[main]  from main::@1
  [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2
  [10] call print_dword_at 
  to:main::@1

(void()) print_dword_at((dword) print_dword_at::dw , (byte*) print_dword_at::at)
print_dword_at: scope:[print_dword_at]  from main::@2
  [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0
  [12] call print_word_at 
  to:print_dword_at::@1
print_dword_at::@1: scope:[print_dword_at]  from print_dword_at
  [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0
  [14] call print_word_at 
  to:print_dword_at::@return
print_dword_at::@return: scope:[print_dword_at]  from print_dword_at::@1
  [15] return 
  to:@return

(void()) print_word_at((word) print_word_at::w , (byte*) print_word_at::at)
print_word_at: scope:[print_word_at]  from print_dword_at print_dword_at::@1
  [16] (byte*) print_word_at::at#2 ← phi( print_dword_at/(const byte*) SCREEN print_dword_at::@1/(const byte*) SCREEN+(byte) 4 )
  [16] (word) print_word_at::w#2 ← phi( print_dword_at/(word) print_word_at::w#0 print_dword_at::@1/(word) print_word_at::w#1 )
  [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2
  [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2
  [19] call print_byte_at 
  to:print_word_at::@1
print_word_at::@1: scope:[print_word_at]  from print_word_at
  [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2
  [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2
  [22] call print_byte_at 
  to:print_word_at::@return
print_word_at::@return: scope:[print_word_at]  from print_word_at::@1
  [23] return 
  to:@return

(void()) print_byte_at((byte) print_byte_at::b , (byte*) print_byte_at::at)
print_byte_at: scope:[print_byte_at]  from print_word_at print_word_at::@1
  [24] (byte*) print_byte_at::at#2 ← phi( print_word_at/(byte*) print_byte_at::at#0 print_word_at::@1/(byte*) print_byte_at::at#1 )
  [24] (byte) print_byte_at::b#2 ← phi( print_word_at/(byte) print_byte_at::b#0 print_word_at::@1/(byte) print_byte_at::b#1 )
  [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4
  [26] (byte) print_char_at::ch#0 ← *((const byte*) print_hextab + (byte~) print_byte_at::$0)
  [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2
  [28] call print_char_at 
  to:print_byte_at::@1
print_byte_at::@1: scope:[print_byte_at]  from print_byte_at
  [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f
  [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1
  [31] (byte) print_char_at::ch#1 ← *((const byte*) print_hextab + (byte~) print_byte_at::$2)
  [32] call print_char_at 
  to:print_byte_at::@return
print_byte_at::@return: scope:[print_byte_at]  from print_byte_at::@1
  [33] return 
  to:@return

(void()) print_char_at((byte) print_char_at::ch , (byte*) print_char_at::at)
print_char_at: scope:[print_char_at]  from print_byte_at print_byte_at::@1
  [34] (byte*) print_char_at::at#2 ← phi( print_byte_at/(byte*) print_char_at::at#0 print_byte_at::@1/(byte*) print_char_at::at#1 )
  [34] (byte) print_char_at::ch#2 ← phi( print_byte_at/(byte) print_char_at::ch#0 print_byte_at::@1/(byte) print_char_at::ch#1 )
  [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2
  to:print_char_at::@return
print_char_at::@return: scope:[print_char_at]  from print_char_at
  [36] return 
  to:@return

(dword()) clock()
clock: scope:[clock]  from main::@1
  [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB)
  to:clock::@return
clock::@return: scope:[clock]  from clock
  [38] return 
  to:@return

(void()) clock_start()
clock_start: scope:[clock_start]  from main
  [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0
  [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
  [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff
  [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
  [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START
  to:clock_start::@return
clock_start::@return: scope:[clock_start]  from clock_start
  [44] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(dword()) clock()
(dword) clock::return
(dword) clock::return#0 4.333333333333333
(dword) clock::return#2 22.0
(void()) clock_start()
(void()) main()
(void()) print_byte_at((byte) print_byte_at::b , (byte*) print_byte_at::at)
(byte~) print_byte_at::$0 4.0
(byte~) print_byte_at::$2 2.0
(byte*) print_byte_at::at
(byte*) print_byte_at::at#0 4.0
(byte*) print_byte_at::at#1 4.0
(byte*) print_byte_at::at#2 1.3333333333333333
(byte) print_byte_at::b
(byte) print_byte_at::b#0 2.0
(byte) print_byte_at::b#1 2.0
(byte) print_byte_at::b#2 1.6
(void()) print_char_at((byte) print_char_at::ch , (byte*) print_char_at::at)
(byte*) print_char_at::at
(byte*) print_char_at::at#0 4.0
(byte*) print_char_at::at#1 2.0
(byte*) print_char_at::at#2 6.0
(byte) print_char_at::ch
(byte) print_char_at::ch#0 2.0
(byte) print_char_at::ch#1 4.0
(byte) print_char_at::ch#2 6.0
(void()) print_dword_at((dword) print_dword_at::dw , (byte*) print_dword_at::at)
(byte*) print_dword_at::at
(dword) print_dword_at::dw
(dword) print_dword_at::dw#0 5.0
(void()) print_word_at((word) print_word_at::w , (byte*) print_word_at::at)
(byte*) print_word_at::at
(byte*) print_word_at::at#2 0.8
(word) print_word_at::w
(word) print_word_at::w#0 4.0
(word) print_word_at::w#1 4.0
(word) print_word_at::w#2 2.0

Initial phi equivalence classes
[ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ]
[ print_word_at::at#2 ]
[ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
[ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ]
[ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ]
[ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ]
Added variable clock::return#2 to zero page equivalence class [ clock::return#2 ]
Added variable print_dword_at::dw#0 to zero page equivalence class [ print_dword_at::dw#0 ]
Added variable print_byte_at::$0 to zero page equivalence class [ print_byte_at::$0 ]
Added variable print_byte_at::$2 to zero page equivalence class [ print_byte_at::$2 ]
Added variable clock::return#0 to zero page equivalence class [ clock::return#0 ]
Complete equivalence classes
[ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ]
[ print_word_at::at#2 ]
[ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
[ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ]
[ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ]
[ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ]
[ clock::return#2 ]
[ print_dword_at::dw#0 ]
[ print_byte_at::$0 ]
[ print_byte_at::$2 ]
[ clock::return#0 ]
Allocated zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ]
Allocated zp[2]:4 [ print_word_at::at#2 ]
Allocated zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
Allocated zp[2]:7 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ]
Allocated zp[1]:9 [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ]
Allocated zp[2]:10 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ]
Allocated zp[4]:12 [ clock::return#2 ]
Allocated zp[4]:16 [ print_dword_at::dw#0 ]
Allocated zp[1]:20 [ print_byte_at::$0 ]
Allocated zp[1]:21 [ print_byte_at::$2 ]
Allocated zp[4]:22 [ clock::return#0 ]

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Setup and run a simple CIA-timer
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // CIA #2 Timer A+B Value (32-bit)
  .label CIA2_TIMER_AB = $dd04
  // CIA #2 Timer A Control Register
  .label CIA2_TIMER_A_CONTROL = $dd0e
  // CIA #2 Timer B Control Register
  .label CIA2_TIMER_B_CONTROL = $dd0f
  // Timer Control - Start/stop timer (0:stop, 1: start)
  .const CIA_TIMER_CONTROL_START = 1
  // Timer B Control - Timer counts (00:system cycles, 01: CNT pulses, 10: timer A underflow, 11: time A underflow while CNT is high)
  .const CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A = $40
  .label SCREEN = $400
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from___b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    // [5] call clock_start 
    jsr clock_start
    // [6] phi from main main::@2 to main::@1 [phi:main/main::@2->main::@1]
  __b1_from_main:
  __b1_from___b2:
    jmp __b1
    // main::@1
  __b1:
    // [7] call clock 
    jsr clock
    // [8] (dword) clock::return#2 ← (dword) clock::return#0 -- vduz1=vduz2 
    lda.z clock.return
    sta.z clock.return_1
    lda.z clock.return+1
    sta.z clock.return_1+1
    lda.z clock.return+2
    sta.z clock.return_1+2
    lda.z clock.return+3
    sta.z clock.return_1+3
    jmp __b2
    // main::@2
  __b2:
    // [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2 -- vduz1=vduz2 
    lda.z clock.return_1
    sta.z print_dword_at.dw
    lda.z clock.return_1+1
    sta.z print_dword_at.dw+1
    lda.z clock.return_1+2
    sta.z print_dword_at.dw+2
    lda.z clock.return_1+3
    sta.z print_dword_at.dw+3
    // [10] call print_dword_at 
    jsr print_dword_at
    jmp __b1_from___b2
}
  // print_dword_at
// Print a dword as HEX at a specific position
// print_dword_at(dword zeropage($10) dw)
print_dword_at: {
    .label dw = $10
    // [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0 -- vwuz1=_hi_vduz2 
    lda.z dw+2
    sta.z print_word_at.w
    lda.z dw+3
    sta.z print_word_at.w+1
    // [12] call print_word_at 
    // [16] phi from print_dword_at to print_word_at [phi:print_dword_at->print_word_at]
  print_word_at_from_print_dword_at:
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN [phi:print_dword_at->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN
    sta.z print_word_at.at
    lda #>SCREEN
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#0 [phi:print_dword_at->print_word_at#1] -- register_copy 
    jsr print_word_at
    jmp __b1
    // print_dword_at::@1
  __b1:
    // [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0 -- vwuz1=_lo_vduz2 
    lda.z dw
    sta.z print_word_at.w
    lda.z dw+1
    sta.z print_word_at.w+1
    // [14] call print_word_at 
    // [16] phi from print_dword_at::@1 to print_word_at [phi:print_dword_at::@1->print_word_at]
  print_word_at_from___b1:
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN+(byte) 4 [phi:print_dword_at::@1->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN+4
    sta.z print_word_at.at
    lda #>SCREEN+4
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#1 [phi:print_dword_at::@1->print_word_at#1] -- register_copy 
    jsr print_word_at
    jmp __breturn
    // print_dword_at::@return
  __breturn:
    // [15] return 
    rts
}
  // print_word_at
// Print a word as HEX at a specific position
// print_word_at(word zeropage(2) w, byte* zeropage(4) at)
print_word_at: {
    .label w = 2
    .label at = 4
    // [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2 -- vbuz1=_hi_vwuz2 
    lda.z w+1
    sta.z print_byte_at.b
    // [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2 -- pbuz1=pbuz2 
    lda.z at
    sta.z print_byte_at.at
    lda.z at+1
    sta.z print_byte_at.at+1
    // [19] call print_byte_at 
    // [24] phi from print_word_at to print_byte_at [phi:print_word_at->print_byte_at]
  print_byte_at_from_print_word_at:
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#0 [phi:print_word_at->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#0 [phi:print_word_at->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    jmp __b1
    // print_word_at::@1
  __b1:
    // [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2 -- vbuz1=_lo_vwuz2 
    lda.z w
    sta.z print_byte_at.b
    // [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2 -- pbuz1=pbuz2_plus_2 
    lda.z at
    clc
    adc #2
    sta.z print_byte_at.at
    lda.z at+1
    adc #0
    sta.z print_byte_at.at+1
    // [22] call print_byte_at 
    // [24] phi from print_word_at::@1 to print_byte_at [phi:print_word_at::@1->print_byte_at]
  print_byte_at_from___b1:
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#1 [phi:print_word_at::@1->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#1 [phi:print_word_at::@1->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    jmp __breturn
    // print_word_at::@return
  __breturn:
    // [23] return 
    rts
}
  // print_byte_at
// Print a byte as HEX at a specific position
// print_byte_at(byte zeropage(6) b, byte* zeropage(7) at)
print_byte_at: {
    .label __0 = $14
    .label __2 = $15
    .label b = 6
    .label at = 7
    // [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4 -- vbuz1=vbuz2_ror_4 
    lda.z b
    lsr
    lsr
    lsr
    lsr
    sta.z __0
    // [26] (byte) print_char_at::ch#0 ← *((const byte*) print_hextab + (byte~) print_byte_at::$0) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z __0
    lda print_hextab,y
    sta.z print_char_at.ch
    // [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2 -- pbuz1=pbuz2 
    lda.z at
    sta.z print_char_at.at
    lda.z at+1
    sta.z print_char_at.at+1
    // [28] call print_char_at 
    // [34] phi from print_byte_at to print_char_at [phi:print_byte_at->print_char_at]
  print_char_at_from_print_byte_at:
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#0 [phi:print_byte_at->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#0 [phi:print_byte_at->print_char_at#1] -- register_copy 
    jsr print_char_at
    jmp __b1
    // print_byte_at::@1
  __b1:
    // [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f -- vbuz1=vbuz2_band_vbuc1 
    lda #$f
    and.z b
    sta.z __2
    // [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1 -- pbuz1=pbuz2_plus_1 
    lda.z at
    clc
    adc #1
    sta.z print_char_at.at
    lda.z at+1
    adc #0
    sta.z print_char_at.at+1
    // [31] (byte) print_char_at::ch#1 ← *((const byte*) print_hextab + (byte~) print_byte_at::$2) -- vbuz1=pbuc1_derefidx_vbuz2 
    ldy.z __2
    lda print_hextab,y
    sta.z print_char_at.ch
    // [32] call print_char_at 
    // [34] phi from print_byte_at::@1 to print_char_at [phi:print_byte_at::@1->print_char_at]
  print_char_at_from___b1:
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#1 [phi:print_byte_at::@1->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#1 [phi:print_byte_at::@1->print_char_at#1] -- register_copy 
    jsr print_char_at
    jmp __breturn
    // print_byte_at::@return
  __breturn:
    // [33] return 
    rts
}
  // print_char_at
// Print a single char
// print_char_at(byte zeropage(9) ch, byte* zeropage($a) at)
print_char_at: {
    .label ch = 9
    .label at = $a
    // [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2 -- _deref_pbuz1=vbuz2 
    lda.z ch
    ldy #0
    sta (at),y
    jmp __breturn
    // print_char_at::@return
  __breturn:
    // [36] return 
    rts
}
  // clock
// Returns the processor clock time used since the beginning of an implementation defined era (normally the beginning of the program).
// This uses CIA #2 Timer A+B on the C64, and must be initialized using clock_start()
clock: {
    .label return = $16
    .label return_1 = $c
    // [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB) -- vduz1=vduc1_minus__deref_pduc2 
    lda #<$ffffffff
    sec
    sbc CIA2_TIMER_AB
    sta.z return
    lda #>$ffffffff
    sbc CIA2_TIMER_AB+1
    sta.z return+1
    lda #<$ffffffff>>$10
    sbc CIA2_TIMER_AB+2
    sta.z return+2
    lda #>$ffffffff>>$10
    sbc CIA2_TIMER_AB+3
    sta.z return+3
    jmp __breturn
    // clock::@return
  __breturn:
    // [38] return 
    rts
}
  // clock_start
// Reset & start the processor clock time. The value can be read using clock().
// This uses CIA #2 Timer A+B on the C64
clock_start: {
    // [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 -- _deref_pbuc1=vbuc2 
    // Setup CIA#2 timer A to count (down) CPU cycles
    lda #0
    sta CIA2_TIMER_A_CONTROL
    // [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff -- _deref_pduc1=vduc2 
    lda #<$ffffffff
    sta CIA2_TIMER_AB
    lda #>$ffffffff
    sta CIA2_TIMER_AB+1
    lda #<$ffffffff>>$10
    sta CIA2_TIMER_AB+2
    lda #>$ffffffff>>$10
    sta CIA2_TIMER_AB+3
    // [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START|CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START
    sta CIA2_TIMER_A_CONTROL
    jmp __breturn
    // clock_start::@return
  __breturn:
    // [44] return 
    rts
}
  // File Data
  print_hextab: .text "0123456789abcdef"

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [8] (dword) clock::return#2 ← (dword) clock::return#0 [ clock::return#2 ] ( main:2 [ clock::return#2 ] ) always clobbers reg byte a 
Statement [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2 [ print_dword_at::dw#0 ] ( main:2 [ print_dword_at::dw#0 ] ) always clobbers reg byte a 
Statement [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0 [ print_dword_at::dw#0 print_word_at::w#0 ] ( main:2::print_dword_at:10 [ print_dword_at::dw#0 print_word_at::w#0 ] ) always clobbers reg byte a 
Statement [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0 [ print_word_at::w#1 ] ( main:2::print_dword_at:10 [ print_word_at::w#1 ] ) always clobbers reg byte a 
Statement [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] ) always clobbers reg byte a 
Statement [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
Statement [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2 [ print_word_at::at#2 print_byte_at::b#1 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::at#2 print_byte_at::b#1 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::at#2 print_byte_at::b#1 ] ) always clobbers reg byte a 
Statement [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2 [ print_byte_at::b#1 print_byte_at::at#1 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_byte_at::b#1 print_byte_at::at#1 ] main:2::print_dword_at:10::print_word_at:14 [ print_byte_at::b#1 print_byte_at::at#1 ] ) always clobbers reg byte a 
Statement [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4 [ print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] ) always clobbers reg byte a 
Statement [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2 [ print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp[1]:9 [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ]
Statement [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f [ print_byte_at::at#2 print_byte_at::$2 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::at#2 print_byte_at::$2 ] ) always clobbers reg byte a 
Statement [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1 [ print_byte_at::$2 print_char_at::at#1 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::$2 print_char_at::at#1 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp[1]:21 [ print_byte_at::$2 ]
Statement [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2 [ ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19::print_char_at:28 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19::print_char_at:28 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22::print_char_at:28 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22::print_char_at:28 [ print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:19::print_char_at:32 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19::print_char_at:32 [ print_word_at::w#2 print_word_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22::print_char_at:32 [ print_dword_at::dw#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22::print_char_at:32 [ ] ) always clobbers reg byte a reg byte y 
Removing always clobbered register reg byte y as potential for zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
Statement [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB) [ clock::return#0 ] ( main:2::clock:7 [ clock::return#0 ] ) always clobbers reg byte a 
Statement [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [8] (dword) clock::return#2 ← (dword) clock::return#0 [ clock::return#2 ] ( main:2 [ clock::return#2 ] ) always clobbers reg byte a 
Statement [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2 [ print_dword_at::dw#0 ] ( main:2 [ print_dword_at::dw#0 ] ) always clobbers reg byte a 
Statement [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0 [ print_dword_at::dw#0 print_word_at::w#0 ] ( main:2::print_dword_at:10 [ print_dword_at::dw#0 print_word_at::w#0 ] ) always clobbers reg byte a 
Statement [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0 [ print_word_at::w#1 ] ( main:2::print_dword_at:10 [ print_word_at::w#1 ] ) always clobbers reg byte a 
Statement [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 ] ) always clobbers reg byte a 
Statement [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#0 print_byte_at::at#0 ] ) always clobbers reg byte a 
Statement [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2 [ print_word_at::at#2 print_byte_at::b#1 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_word_at::at#2 print_byte_at::b#1 ] main:2::print_dword_at:10::print_word_at:14 [ print_word_at::at#2 print_byte_at::b#1 ] ) always clobbers reg byte a 
Statement [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2 [ print_byte_at::b#1 print_byte_at::at#1 ] ( main:2::print_dword_at:10::print_word_at:12 [ print_dword_at::dw#0 print_byte_at::b#1 print_byte_at::at#1 ] main:2::print_dword_at:10::print_word_at:14 [ print_byte_at::b#1 print_byte_at::at#1 ] ) always clobbers reg byte a 
Statement [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4 [ print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::b#2 print_byte_at::at#2 print_byte_at::$0 ] ) always clobbers reg byte a 
Statement [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2 [ print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::b#2 print_byte_at::at#2 print_char_at::ch#0 print_char_at::at#0 ] ) always clobbers reg byte a 
Statement [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f [ print_byte_at::at#2 print_byte_at::$2 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::at#2 print_byte_at::$2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::at#2 print_byte_at::$2 ] ) always clobbers reg byte a 
Statement [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1 [ print_byte_at::$2 print_char_at::at#1 ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22 [ print_dword_at::dw#0 print_byte_at::$2 print_char_at::at#1 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22 [ print_byte_at::$2 print_char_at::at#1 ] ) always clobbers reg byte a 
Statement [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2 [ ] ( main:2::print_dword_at:10::print_word_at:12::print_byte_at:19::print_char_at:28 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19::print_char_at:28 [ print_word_at::w#2 print_word_at::at#2 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22::print_char_at:28 [ print_dword_at::dw#0 print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22::print_char_at:28 [ print_byte_at::b#2 print_byte_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:19::print_char_at:32 [ print_dword_at::dw#0 print_word_at::w#2 print_word_at::at#2 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:19::print_char_at:32 [ print_word_at::w#2 print_word_at::at#2 ] main:2::print_dword_at:10::print_word_at:12::print_byte_at:22::print_char_at:32 [ print_dword_at::dw#0 ] main:2::print_dword_at:10::print_word_at:14::print_byte_at:22::print_char_at:32 [ ] ) always clobbers reg byte a reg byte y 
Statement [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB) [ clock::return#0 ] ( main:2::clock:7 [ clock::return#0 ] ) always clobbers reg byte a 
Statement [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Statement [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START [ ] ( main:2::clock_start:5 [ ] ) always clobbers reg byte a 
Potential registers zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] : zp[2]:2 , 
Potential registers zp[2]:4 [ print_word_at::at#2 ] : zp[2]:4 , 
Potential registers zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] : zp[1]:6 , reg byte x , 
Potential registers zp[2]:7 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] : zp[2]:7 , 
Potential registers zp[1]:9 [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ] : zp[1]:9 , reg byte x , reg byte y , 
Potential registers zp[2]:10 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] : zp[2]:10 , 
Potential registers zp[4]:12 [ clock::return#2 ] : zp[4]:12 , 
Potential registers zp[4]:16 [ print_dword_at::dw#0 ] : zp[4]:16 , 
Potential registers zp[1]:20 [ print_byte_at::$0 ] : zp[1]:20 , reg byte a , reg byte x , reg byte y , 
Potential registers zp[1]:21 [ print_byte_at::$2 ] : zp[1]:21 , reg byte x , reg byte y , 
Potential registers zp[4]:22 [ clock::return#0 ] : zp[4]:22 , 

REGISTER UPLIFT SCOPES
Uplift Scope [clock] 22: zp[4]:12 [ clock::return#2 ] 4.33: zp[4]:22 [ clock::return#0 ] 
Uplift Scope [print_char_at] 12: zp[1]:9 [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ] 12: zp[2]:10 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] 
Uplift Scope [print_byte_at] 9.33: zp[2]:7 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] 5.6: zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] 4: zp[1]:20 [ print_byte_at::$0 ] 2: zp[1]:21 [ print_byte_at::$2 ] 
Uplift Scope [print_word_at] 10: zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] 0.8: zp[2]:4 [ print_word_at::at#2 ] 
Uplift Scope [print_dword_at] 5: zp[4]:16 [ print_dword_at::dw#0 ] 
Uplift Scope [clock_start] 
Uplift Scope [RADIX] 
Uplift Scope [main] 
Uplift Scope [] 

Uplifting [clock] best 1062 combination zp[4]:12 [ clock::return#2 ] zp[4]:22 [ clock::return#0 ] 
Uplifting [print_char_at] best 1055 combination reg byte x [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ] zp[2]:10 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] 
Uplifting [print_byte_at] best 1047 combination zp[2]:7 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] reg byte a [ print_byte_at::$0 ] reg byte y [ print_byte_at::$2 ] 
Uplifting [print_word_at] best 1047 combination zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] zp[2]:4 [ print_word_at::at#2 ] 
Uplifting [print_dword_at] best 1047 combination zp[4]:16 [ print_dword_at::dw#0 ] 
Uplifting [clock_start] best 1047 combination 
Uplifting [RADIX] best 1047 combination 
Uplifting [main] best 1047 combination 
Uplifting [] best 1047 combination 
Attempting to uplift remaining variables inzp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
Uplifting [print_byte_at] best 1047 combination zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] 
Coalescing zero page register [ zp[2]:4 [ print_word_at::at#2 ] ] with [ zp[2]:7 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] ] - score: 2
Coalescing zero page register [ zp[4]:12 [ clock::return#2 ] ] with [ zp[4]:16 [ print_dword_at::dw#0 ] ] - score: 1
Coalescing zero page register [ zp[4]:12 [ clock::return#2 print_dword_at::dw#0 ] ] with [ zp[4]:22 [ clock::return#0 ] ] - score: 1
Allocated (was zp[2]:10) zp[2]:7 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ]
Allocated (was zp[4]:12) zp[4]:9 [ clock::return#2 print_dword_at::dw#0 clock::return#0 ]

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Setup and run a simple CIA-timer
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // CIA #2 Timer A+B Value (32-bit)
  .label CIA2_TIMER_AB = $dd04
  // CIA #2 Timer A Control Register
  .label CIA2_TIMER_A_CONTROL = $dd0e
  // CIA #2 Timer B Control Register
  .label CIA2_TIMER_B_CONTROL = $dd0f
  // Timer Control - Start/stop timer (0:stop, 1: start)
  .const CIA_TIMER_CONTROL_START = 1
  // Timer B Control - Timer counts (00:system cycles, 01: CNT pulses, 10: timer A underflow, 11: time A underflow while CNT is high)
  .const CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A = $40
  .label SCREEN = $400
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
main_from___b1:
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    // [5] call clock_start 
    jsr clock_start
    // [6] phi from main main::@2 to main::@1 [phi:main/main::@2->main::@1]
  __b1_from_main:
  __b1_from___b2:
    jmp __b1
    // main::@1
  __b1:
    // [7] call clock 
    jsr clock
    // [8] (dword) clock::return#2 ← (dword) clock::return#0
    jmp __b2
    // main::@2
  __b2:
    // [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2
    // [10] call print_dword_at 
    jsr print_dword_at
    jmp __b1_from___b2
}
  // print_dword_at
// Print a dword as HEX at a specific position
// print_dword_at(dword zeropage(9) dw)
print_dword_at: {
    .label dw = 9
    // [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0 -- vwuz1=_hi_vduz2 
    lda.z dw+2
    sta.z print_word_at.w
    lda.z dw+3
    sta.z print_word_at.w+1
    // [12] call print_word_at 
    // [16] phi from print_dword_at to print_word_at [phi:print_dword_at->print_word_at]
  print_word_at_from_print_dword_at:
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN [phi:print_dword_at->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN
    sta.z print_word_at.at
    lda #>SCREEN
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#0 [phi:print_dword_at->print_word_at#1] -- register_copy 
    jsr print_word_at
    jmp __b1
    // print_dword_at::@1
  __b1:
    // [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0 -- vwuz1=_lo_vduz2 
    lda.z dw
    sta.z print_word_at.w
    lda.z dw+1
    sta.z print_word_at.w+1
    // [14] call print_word_at 
    // [16] phi from print_dword_at::@1 to print_word_at [phi:print_dword_at::@1->print_word_at]
  print_word_at_from___b1:
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN+(byte) 4 [phi:print_dword_at::@1->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN+4
    sta.z print_word_at.at
    lda #>SCREEN+4
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#1 [phi:print_dword_at::@1->print_word_at#1] -- register_copy 
    jsr print_word_at
    jmp __breturn
    // print_dword_at::@return
  __breturn:
    // [15] return 
    rts
}
  // print_word_at
// Print a word as HEX at a specific position
// print_word_at(word zeropage(2) w, byte* zeropage(4) at)
print_word_at: {
    .label w = 2
    .label at = 4
    // [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2 -- vbuz1=_hi_vwuz2 
    lda.z w+1
    sta.z print_byte_at.b
    // [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2
    // [19] call print_byte_at 
    // [24] phi from print_word_at to print_byte_at [phi:print_word_at->print_byte_at]
  print_byte_at_from_print_word_at:
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#0 [phi:print_word_at->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#0 [phi:print_word_at->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    jmp __b1
    // print_word_at::@1
  __b1:
    // [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2 -- vbuz1=_lo_vwuz2 
    lda.z w
    sta.z print_byte_at.b
    // [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2 -- pbuz1=pbuz1_plus_2 
    lda.z print_byte_at.at
    clc
    adc #2
    sta.z print_byte_at.at
    bcc !+
    inc.z print_byte_at.at+1
  !:
    // [22] call print_byte_at 
    // [24] phi from print_word_at::@1 to print_byte_at [phi:print_word_at::@1->print_byte_at]
  print_byte_at_from___b1:
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#1 [phi:print_word_at::@1->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#1 [phi:print_word_at::@1->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    jmp __breturn
    // print_word_at::@return
  __breturn:
    // [23] return 
    rts
}
  // print_byte_at
// Print a byte as HEX at a specific position
// print_byte_at(byte zeropage(6) b, byte* zeropage(4) at)
print_byte_at: {
    .label b = 6
    .label at = 4
    // [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4 -- vbuaa=vbuz1_ror_4 
    lda.z b
    lsr
    lsr
    lsr
    lsr
    // [26] (byte) print_char_at::ch#0 ← *((const byte*) print_hextab + (byte~) print_byte_at::$0) -- vbuxx=pbuc1_derefidx_vbuaa 
    tay
    ldx print_hextab,y
    // [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2 -- pbuz1=pbuz2 
    lda.z at
    sta.z print_char_at.at
    lda.z at+1
    sta.z print_char_at.at+1
    // [28] call print_char_at 
    // [34] phi from print_byte_at to print_char_at [phi:print_byte_at->print_char_at]
  print_char_at_from_print_byte_at:
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#0 [phi:print_byte_at->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#0 [phi:print_byte_at->print_char_at#1] -- register_copy 
    jsr print_char_at
    jmp __b1
    // print_byte_at::@1
  __b1:
    // [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f -- vbuyy=vbuz1_band_vbuc1 
    lda #$f
    and.z b
    tay
    // [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1 -- pbuz1=pbuz2_plus_1 
    lda.z at
    clc
    adc #1
    sta.z print_char_at.at
    lda.z at+1
    adc #0
    sta.z print_char_at.at+1
    // [31] (byte) print_char_at::ch#1 ← *((const byte*) print_hextab + (byte~) print_byte_at::$2) -- vbuxx=pbuc1_derefidx_vbuyy 
    ldx print_hextab,y
    // [32] call print_char_at 
    // [34] phi from print_byte_at::@1 to print_char_at [phi:print_byte_at::@1->print_char_at]
  print_char_at_from___b1:
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#1 [phi:print_byte_at::@1->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#1 [phi:print_byte_at::@1->print_char_at#1] -- register_copy 
    jsr print_char_at
    jmp __breturn
    // print_byte_at::@return
  __breturn:
    // [33] return 
    rts
}
  // print_char_at
// Print a single char
// print_char_at(byte register(X) ch, byte* zeropage(7) at)
print_char_at: {
    .label at = 7
    // [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2 -- _deref_pbuz1=vbuxx 
    txa
    ldy #0
    sta (at),y
    jmp __breturn
    // print_char_at::@return
  __breturn:
    // [36] return 
    rts
}
  // clock
// Returns the processor clock time used since the beginning of an implementation defined era (normally the beginning of the program).
// This uses CIA #2 Timer A+B on the C64, and must be initialized using clock_start()
clock: {
    .label return = 9
    // [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB) -- vduz1=vduc1_minus__deref_pduc2 
    lda #<$ffffffff
    sec
    sbc CIA2_TIMER_AB
    sta.z return
    lda #>$ffffffff
    sbc CIA2_TIMER_AB+1
    sta.z return+1
    lda #<$ffffffff>>$10
    sbc CIA2_TIMER_AB+2
    sta.z return+2
    lda #>$ffffffff>>$10
    sbc CIA2_TIMER_AB+3
    sta.z return+3
    jmp __breturn
    // clock::@return
  __breturn:
    // [38] return 
    rts
}
  // clock_start
// Reset & start the processor clock time. The value can be read using clock().
// This uses CIA #2 Timer A+B on the C64
clock_start: {
    // [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 -- _deref_pbuc1=vbuc2 
    // Setup CIA#2 timer A to count (down) CPU cycles
    lda #0
    sta CIA2_TIMER_A_CONTROL
    // [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff -- _deref_pduc1=vduc2 
    lda #<$ffffffff
    sta CIA2_TIMER_AB
    lda #>$ffffffff
    sta CIA2_TIMER_AB+1
    lda #<$ffffffff>>$10
    sta CIA2_TIMER_AB+2
    lda #>$ffffffff>>$10
    sta CIA2_TIMER_AB+3
    // [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START|CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START
    sta CIA2_TIMER_A_CONTROL
    jmp __breturn
    // clock_start::@return
  __breturn:
    // [44] return 
    rts
}
  // File Data
  print_hextab: .text "0123456789abcdef"

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp __b1
Removing instruction jmp __b2
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __breturn
Removing instruction jmp __breturn
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing label __bbegin with __b1
Replacing label __b1_from___b2 with __b1
Removing instruction __bbegin:
Removing instruction __b1_from___bbegin:
Removing instruction main_from___b1:
Removing instruction __bend_from___b1:
Removing instruction __b1_from_main:
Removing instruction __b1_from___b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bend:
Removing instruction __b2:
Removing instruction print_word_at_from_print_dword_at:
Removing instruction __b1:
Removing instruction print_word_at_from___b1:
Removing instruction __breturn:
Removing instruction print_byte_at_from_print_word_at:
Removing instruction __b1:
Removing instruction print_byte_at_from___b1:
Removing instruction __breturn:
Removing instruction print_char_at_from_print_byte_at:
Removing instruction __b1:
Removing instruction print_char_at_from___b1:
Removing instruction __breturn:
Removing instruction __breturn:
Removing instruction __breturn:
Removing instruction __breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction __b1:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const dword*) CIA2_TIMER_AB = (dword*) 56580
(const byte*) CIA2_TIMER_A_CONTROL = (byte*) 56590
(const byte*) CIA2_TIMER_B_CONTROL = (byte*) 56591
(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A = (number) $40
(const byte) CIA_TIMER_CONTROL_START = (number) 1
(const byte) RADIX::BINARY = (number) 2
(const byte) RADIX::DECIMAL = (number) $a
(const byte) RADIX::HEXADECIMAL = (number) $10
(const byte) RADIX::OCTAL = (number) 8
(const byte*) SCREEN = (byte*) 1024
(dword()) clock()
(label) clock::@return
(dword) clock::return
(dword) clock::return#0 return zp[4]:9 4.333333333333333
(dword) clock::return#2 return zp[4]:9 22.0
(void()) clock_start()
(label) clock_start::@return
(void()) main()
(label) main::@1
(label) main::@2
(void()) print_byte_at((byte) print_byte_at::b , (byte*) print_byte_at::at)
(byte~) print_byte_at::$0 reg byte a 4.0
(byte~) print_byte_at::$2 reg byte y 2.0
(label) print_byte_at::@1
(label) print_byte_at::@return
(byte*) print_byte_at::at
(byte*) print_byte_at::at#0 at zp[2]:4 4.0
(byte*) print_byte_at::at#1 at zp[2]:4 4.0
(byte*) print_byte_at::at#2 at zp[2]:4 1.3333333333333333
(byte) print_byte_at::b
(byte) print_byte_at::b#0 b zp[1]:6 2.0
(byte) print_byte_at::b#1 b zp[1]:6 2.0
(byte) print_byte_at::b#2 b zp[1]:6 1.6
(void()) print_char_at((byte) print_char_at::ch , (byte*) print_char_at::at)
(label) print_char_at::@return
(byte*) print_char_at::at
(byte*) print_char_at::at#0 at zp[2]:7 4.0
(byte*) print_char_at::at#1 at zp[2]:7 2.0
(byte*) print_char_at::at#2 at zp[2]:7 6.0
(byte) print_char_at::ch
(byte) print_char_at::ch#0 reg byte x 2.0
(byte) print_char_at::ch#1 reg byte x 4.0
(byte) print_char_at::ch#2 reg byte x 6.0
(void()) print_dword_at((dword) print_dword_at::dw , (byte*) print_dword_at::at)
(label) print_dword_at::@1
(label) print_dword_at::@return
(byte*) print_dword_at::at
(dword) print_dword_at::dw
(dword) print_dword_at::dw#0 dw zp[4]:9 5.0
(const byte*) print_hextab = (string) "0123456789abcdef"z
(void()) print_word_at((word) print_word_at::w , (byte*) print_word_at::at)
(label) print_word_at::@1
(label) print_word_at::@return
(byte*) print_word_at::at
(byte*) print_word_at::at#2 at zp[2]:4 0.8
(word) print_word_at::w
(word) print_word_at::w#0 w zp[2]:2 4.0
(word) print_word_at::w#1 w zp[2]:2 4.0
(word) print_word_at::w#2 w zp[2]:2 2.0

zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ]
zp[2]:4 [ print_word_at::at#2 print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ]
zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ]
reg byte x [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ]
zp[2]:7 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ]
zp[4]:9 [ clock::return#2 print_dword_at::dw#0 clock::return#0 ]
reg byte a [ print_byte_at::$0 ]
reg byte y [ print_byte_at::$2 ]


FINAL ASSEMBLER
Score: 455

  // File Comments
// Setup and run a simple CIA-timer
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // CIA #2 Timer A+B Value (32-bit)
  .label CIA2_TIMER_AB = $dd04
  // CIA #2 Timer A Control Register
  .label CIA2_TIMER_A_CONTROL = $dd0e
  // CIA #2 Timer B Control Register
  .label CIA2_TIMER_B_CONTROL = $dd0f
  // Timer Control - Start/stop timer (0:stop, 1: start)
  .const CIA_TIMER_CONTROL_START = 1
  // Timer B Control - Timer counts (00:system cycles, 01: CNT pulses, 10: timer A underflow, 11: time A underflow while CNT is high)
  .const CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A = $40
  .label SCREEN = $400
  // @begin
  // [1] phi from @begin to @1 [phi:@begin->@1]
  // @1
  // [2] call main 
  // [4] phi from @1 to main [phi:@1->main]
  // [3] phi from @1 to @end [phi:@1->@end]
  // @end
  // main
main: {
    // clock_start()
    // [5] call clock_start 
    jsr clock_start
    // [6] phi from main main::@2 to main::@1 [phi:main/main::@2->main::@1]
    // main::@1
  __b1:
    // clock()
    // [7] call clock 
    jsr clock
    // [8] (dword) clock::return#2 ← (dword) clock::return#0
    // main::@2
    // print_dword_at(clock(), SCREEN)
    // [9] (dword) print_dword_at::dw#0 ← (dword) clock::return#2
    // [10] call print_dword_at 
    jsr print_dword_at
    jmp __b1
}
  // print_dword_at
// Print a dword as HEX at a specific position
// print_dword_at(dword zeropage(9) dw)
print_dword_at: {
    .label dw = 9
    // print_word_at(>dw, at)
    // [11] (word) print_word_at::w#0 ← > (dword) print_dword_at::dw#0 -- vwuz1=_hi_vduz2 
    lda.z dw+2
    sta.z print_word_at.w
    lda.z dw+3
    sta.z print_word_at.w+1
    // [12] call print_word_at 
    // [16] phi from print_dword_at to print_word_at [phi:print_dword_at->print_word_at]
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN [phi:print_dword_at->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN
    sta.z print_word_at.at
    lda #>SCREEN
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#0 [phi:print_dword_at->print_word_at#1] -- register_copy 
    jsr print_word_at
    // print_dword_at::@1
    // print_word_at(<dw, at+4)
    // [13] (word) print_word_at::w#1 ← < (dword) print_dword_at::dw#0 -- vwuz1=_lo_vduz2 
    lda.z dw
    sta.z print_word_at.w
    lda.z dw+1
    sta.z print_word_at.w+1
    // [14] call print_word_at 
    // [16] phi from print_dword_at::@1 to print_word_at [phi:print_dword_at::@1->print_word_at]
    // [16] phi (byte*) print_word_at::at#2 = (const byte*) SCREEN+(byte) 4 [phi:print_dword_at::@1->print_word_at#0] -- pbuz1=pbuc1 
    lda #<SCREEN+4
    sta.z print_word_at.at
    lda #>SCREEN+4
    sta.z print_word_at.at+1
    // [16] phi (word) print_word_at::w#2 = (word) print_word_at::w#1 [phi:print_dword_at::@1->print_word_at#1] -- register_copy 
    jsr print_word_at
    // print_dword_at::@return
    // }
    // [15] return 
    rts
}
  // print_word_at
// Print a word as HEX at a specific position
// print_word_at(word zeropage(2) w, byte* zeropage(4) at)
print_word_at: {
    .label w = 2
    .label at = 4
    // print_byte_at(>w, at)
    // [17] (byte) print_byte_at::b#0 ← > (word) print_word_at::w#2 -- vbuz1=_hi_vwuz2 
    lda.z w+1
    sta.z print_byte_at.b
    // [18] (byte*) print_byte_at::at#0 ← (byte*) print_word_at::at#2
    // [19] call print_byte_at 
    // [24] phi from print_word_at to print_byte_at [phi:print_word_at->print_byte_at]
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#0 [phi:print_word_at->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#0 [phi:print_word_at->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    // print_word_at::@1
    // print_byte_at(<w, at+2)
    // [20] (byte) print_byte_at::b#1 ← < (word) print_word_at::w#2 -- vbuz1=_lo_vwuz2 
    lda.z w
    sta.z print_byte_at.b
    // [21] (byte*) print_byte_at::at#1 ← (byte*) print_word_at::at#2 + (byte) 2 -- pbuz1=pbuz1_plus_2 
    lda.z print_byte_at.at
    clc
    adc #2
    sta.z print_byte_at.at
    bcc !+
    inc.z print_byte_at.at+1
  !:
    // [22] call print_byte_at 
    // [24] phi from print_word_at::@1 to print_byte_at [phi:print_word_at::@1->print_byte_at]
    // [24] phi (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#1 [phi:print_word_at::@1->print_byte_at#0] -- register_copy 
    // [24] phi (byte) print_byte_at::b#2 = (byte) print_byte_at::b#1 [phi:print_word_at::@1->print_byte_at#1] -- register_copy 
    jsr print_byte_at
    // print_word_at::@return
    // }
    // [23] return 
    rts
}
  // print_byte_at
// Print a byte as HEX at a specific position
// print_byte_at(byte zeropage(6) b, byte* zeropage(4) at)
print_byte_at: {
    .label b = 6
    .label at = 4
    // b>>4
    // [25] (byte~) print_byte_at::$0 ← (byte) print_byte_at::b#2 >> (byte) 4 -- vbuaa=vbuz1_ror_4 
    lda.z b
    lsr
    lsr
    lsr
    lsr
    // print_char_at(print_hextab[b>>4], at)
    // [26] (byte) print_char_at::ch#0 ← *((const byte*) print_hextab + (byte~) print_byte_at::$0) -- vbuxx=pbuc1_derefidx_vbuaa 
    tay
    ldx print_hextab,y
    // [27] (byte*) print_char_at::at#0 ← (byte*) print_byte_at::at#2 -- pbuz1=pbuz2 
    lda.z at
    sta.z print_char_at.at
    lda.z at+1
    sta.z print_char_at.at+1
    // [28] call print_char_at 
    // [34] phi from print_byte_at to print_char_at [phi:print_byte_at->print_char_at]
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#0 [phi:print_byte_at->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#0 [phi:print_byte_at->print_char_at#1] -- register_copy 
    jsr print_char_at
    // print_byte_at::@1
    // b&$f
    // [29] (byte~) print_byte_at::$2 ← (byte) print_byte_at::b#2 & (byte) $f -- vbuyy=vbuz1_band_vbuc1 
    lda #$f
    and.z b
    tay
    // print_char_at(print_hextab[b&$f], at+1)
    // [30] (byte*) print_char_at::at#1 ← (byte*) print_byte_at::at#2 + (byte) 1 -- pbuz1=pbuz2_plus_1 
    lda.z at
    clc
    adc #1
    sta.z print_char_at.at
    lda.z at+1
    adc #0
    sta.z print_char_at.at+1
    // [31] (byte) print_char_at::ch#1 ← *((const byte*) print_hextab + (byte~) print_byte_at::$2) -- vbuxx=pbuc1_derefidx_vbuyy 
    ldx print_hextab,y
    // [32] call print_char_at 
    // [34] phi from print_byte_at::@1 to print_char_at [phi:print_byte_at::@1->print_char_at]
    // [34] phi (byte*) print_char_at::at#2 = (byte*) print_char_at::at#1 [phi:print_byte_at::@1->print_char_at#0] -- register_copy 
    // [34] phi (byte) print_char_at::ch#2 = (byte) print_char_at::ch#1 [phi:print_byte_at::@1->print_char_at#1] -- register_copy 
    jsr print_char_at
    // print_byte_at::@return
    // }
    // [33] return 
    rts
}
  // print_char_at
// Print a single char
// print_char_at(byte register(X) ch, byte* zeropage(7) at)
print_char_at: {
    .label at = 7
    // *(at) = ch
    // [35] *((byte*) print_char_at::at#2) ← (byte) print_char_at::ch#2 -- _deref_pbuz1=vbuxx 
    txa
    ldy #0
    sta (at),y
    // print_char_at::@return
    // }
    // [36] return 
    rts
}
  // clock
// Returns the processor clock time used since the beginning of an implementation defined era (normally the beginning of the program).
// This uses CIA #2 Timer A+B on the C64, and must be initialized using clock_start()
clock: {
    .label return = 9
    // 0xffffffff - *CIA2_TIMER_AB
    // [37] (dword) clock::return#0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB) -- vduz1=vduc1_minus__deref_pduc2 
    lda #<$ffffffff
    sec
    sbc CIA2_TIMER_AB
    sta.z return
    lda #>$ffffffff
    sbc CIA2_TIMER_AB+1
    sta.z return+1
    lda #<$ffffffff>>$10
    sbc CIA2_TIMER_AB+2
    sta.z return+2
    lda #>$ffffffff>>$10
    sbc CIA2_TIMER_AB+3
    sta.z return+3
    // clock::@return
    // }
    // [38] return 
    rts
}
  // clock_start
// Reset & start the processor clock time. The value can be read using clock().
// This uses CIA #2 Timer A+B on the C64
clock_start: {
    // *CIA2_TIMER_A_CONTROL = CIA_TIMER_CONTROL_STOP | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_A_COUNT_CYCLES
    // [39] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 -- _deref_pbuc1=vbuc2 
    // Setup CIA#2 timer A to count (down) CPU cycles
    lda #0
    sta CIA2_TIMER_A_CONTROL
    // *CIA2_TIMER_B_CONTROL = CIA_TIMER_CONTROL_STOP | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    // [40] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // *CIA2_TIMER_AB = 0xffffffff
    // [41] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff -- _deref_pduc1=vduc2 
    lda #<$ffffffff
    sta CIA2_TIMER_AB
    lda #>$ffffffff
    sta CIA2_TIMER_AB+1
    lda #<$ffffffff>>$10
    sta CIA2_TIMER_AB+2
    lda #>$ffffffff>>$10
    sta CIA2_TIMER_AB+3
    // *CIA2_TIMER_B_CONTROL = CIA_TIMER_CONTROL_START | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    // [42] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START|CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A
    sta CIA2_TIMER_B_CONTROL
    // *CIA2_TIMER_A_CONTROL = CIA_TIMER_CONTROL_START | CIA_TIMER_CONTROL_CONTINUOUS | CIA_TIMER_CONTROL_A_COUNT_CYCLES
    // [43] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START -- _deref_pbuc1=vbuc2 
    lda #CIA_TIMER_CONTROL_START
    sta CIA2_TIMER_A_CONTROL
    // clock_start::@return
    // }
    // [44] return 
    rts
}
  // File Data
  print_hextab: .text "0123456789abcdef"