
CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  (byte*) screen#0 ← ((byte*)) (word/signed word/dword/signed dword) 1024
  to:@4
main: scope:[main]  from @4
  call scrollup1 
  to:main::@1
main::@1: scope:[main]  from main
  call scrollup2 
  to:main::@2
main::@2: scope:[main]  from main::@1
  call scrollup3 
  to:main::@3
main::@3: scope:[main]  from main::@2
  to:main::@return
main::@return: scope:[main]  from main::@3
  return 
  to:@return
scrollup1: scope:[scrollup1]  from main
  (word) scrollup1::line#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup1::@1
scrollup1::@1: scope:[scrollup1]  from scrollup1 scrollup1::@3
  (word) scrollup1::line#4 ← phi( scrollup1/(word) scrollup1::line#0 scrollup1::@3/(word) scrollup1::line#1 )
  (byte) scrollup1::c#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup1::@2
scrollup1::@2: scope:[scrollup1]  from scrollup1::@1 scrollup1::@2
  (byte) scrollup1::c#2 ← phi( scrollup1::@1/(byte) scrollup1::c#0 scrollup1::@2/(byte) scrollup1::c#1 )
  (word) scrollup1::line#2 ← phi( scrollup1::@1/(word) scrollup1::line#4 scrollup1::@2/(word) scrollup1::line#2 )
  (word~) scrollup1::$0 ← (word) scrollup1::line#2 + (byte) scrollup1::c#2
  (word~) scrollup1::$1 ← (word) scrollup1::line#2 + (byte) scrollup1::c#2
  (word/signed dword/dword~) scrollup1::$2 ← (word~) scrollup1::$1 + (byte/signed byte/word/signed word/dword/signed dword) 40
  *((byte*) screen#0 + (word~) scrollup1::$0) ← *((byte*) screen#0 + (word/signed dword/dword~) scrollup1::$2)
  (byte) scrollup1::c#1 ← ++ (byte) scrollup1::c#2
  (bool~) scrollup1::$3 ← (byte) scrollup1::c#1 < (byte/signed byte/word/signed word/dword/signed dword) 40
  if((bool~) scrollup1::$3) goto scrollup1::@2
  to:scrollup1::@3
scrollup1::@3: scope:[scrollup1]  from scrollup1::@2
  (word) scrollup1::line#3 ← phi( scrollup1::@2/(word) scrollup1::line#2 )
  (word) scrollup1::line#1 ← (word) scrollup1::line#3 + (byte/signed byte/word/signed word/dword/signed dword) 40
  (word/signed word/dword/signed dword~) scrollup1::$4 ← (byte/signed byte/word/signed word/dword/signed dword) 40 * (byte/signed byte/word/signed word/dword/signed dword) 24
  (bool~) scrollup1::$5 ← (word) scrollup1::line#1 < (word/signed word/dword/signed dword~) scrollup1::$4
  if((bool~) scrollup1::$5) goto scrollup1::@1
  to:scrollup1::@return
scrollup1::@return: scope:[scrollup1]  from scrollup1::@3
  return 
  to:@return
scrollup2: scope:[scrollup2]  from main::@1
  (byte*) scrollup2::line1#0 ← (byte*) screen#0
  (byte*~) scrollup2::$0 ← (byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 40
  (byte*) scrollup2::line2#0 ← (byte*~) scrollup2::$0
  (byte) scrollup2::l#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup2::@1
scrollup2::@1: scope:[scrollup2]  from scrollup2 scrollup2::@3
  (byte) scrollup2::l#4 ← phi( scrollup2/(byte) scrollup2::l#0 scrollup2::@3/(byte) scrollup2::l#1 )
  (byte*) scrollup2::line1#3 ← phi( scrollup2/(byte*) scrollup2::line1#0 scrollup2::@3/(byte*) scrollup2::line1#4 )
  (byte*) scrollup2::line2#3 ← phi( scrollup2/(byte*) scrollup2::line2#0 scrollup2::@3/(byte*) scrollup2::line2#4 )
  (byte) scrollup2::c#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup2::@2
scrollup2::@2: scope:[scrollup2]  from scrollup2::@1 scrollup2::@2
  (byte) scrollup2::l#3 ← phi( scrollup2::@1/(byte) scrollup2::l#4 scrollup2::@2/(byte) scrollup2::l#3 )
  (byte) scrollup2::c#2 ← phi( scrollup2::@1/(byte) scrollup2::c#0 scrollup2::@2/(byte) scrollup2::c#1 )
  (byte*) scrollup2::line1#2 ← phi( scrollup2::@1/(byte*) scrollup2::line1#3 scrollup2::@2/(byte*) scrollup2::line1#1 )
  (byte*) scrollup2::line2#2 ← phi( scrollup2::@1/(byte*) scrollup2::line2#3 scrollup2::@2/(byte*) scrollup2::line2#1 )
  *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2)
  (byte*) scrollup2::line1#1 ← ++ (byte*) scrollup2::line1#2
  (byte*) scrollup2::line2#1 ← ++ (byte*) scrollup2::line2#2
  (byte) scrollup2::c#1 ← (byte) scrollup2::c#2 + rangenext(0,39)
  (bool~) scrollup2::$1 ← (byte) scrollup2::c#1 != rangelast(0,39)
  if((bool~) scrollup2::$1) goto scrollup2::@2
  to:scrollup2::@3
scrollup2::@3: scope:[scrollup2]  from scrollup2::@2
  (byte*) scrollup2::line1#4 ← phi( scrollup2::@2/(byte*) scrollup2::line1#1 )
  (byte*) scrollup2::line2#4 ← phi( scrollup2::@2/(byte*) scrollup2::line2#1 )
  (byte) scrollup2::l#2 ← phi( scrollup2::@2/(byte) scrollup2::l#3 )
  (byte) scrollup2::l#1 ← (byte) scrollup2::l#2 + rangenext(0,23)
  (bool~) scrollup2::$2 ← (byte) scrollup2::l#1 != rangelast(0,23)
  if((bool~) scrollup2::$2) goto scrollup2::@1
  to:scrollup2::@return
scrollup2::@return: scope:[scrollup2]  from scrollup2::@3
  return 
  to:@return
scrollup3: scope:[scrollup3]  from main::@2
  (word) scrollup3::line#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup3::@1
scrollup3::@1: scope:[scrollup3]  from scrollup3 scrollup3::@3
  (word) scrollup3::line#2 ← phi( scrollup3/(word) scrollup3::line#0 scrollup3::@3/(word) scrollup3::line#1 )
  (word) scrollup3::l2#0 ← (word) scrollup3::line#2
  (byte) scrollup3::c#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:scrollup3::@2
scrollup3::@2: scope:[scrollup3]  from scrollup3::@1 scrollup3::@2
  (word) scrollup3::line#4 ← phi( scrollup3::@1/(word) scrollup3::line#2 scrollup3::@2/(word) scrollup3::line#4 )
  (byte) scrollup3::c#2 ← phi( scrollup3::@1/(byte) scrollup3::c#0 scrollup3::@2/(byte) scrollup3::c#1 )
  (word) scrollup3::l2#2 ← phi( scrollup3::@1/(word) scrollup3::l2#0 scrollup3::@2/(word) scrollup3::l2#1 )
  (word/signed dword/dword~) scrollup3::$0 ← (word) scrollup3::l2#2 + (byte/signed byte/word/signed word/dword/signed dword) 40
  *((byte*) screen#0 + (word) scrollup3::l2#2) ← *((byte*) screen#0 + (word/signed dword/dword~) scrollup3::$0)
  (word) scrollup3::l2#1 ← ++ (word) scrollup3::l2#2
  (byte) scrollup3::c#1 ← ++ (byte) scrollup3::c#2
  (bool~) scrollup3::$1 ← (byte) scrollup3::c#1 < (byte/signed byte/word/signed word/dword/signed dword) 40
  if((bool~) scrollup3::$1) goto scrollup3::@2
  to:scrollup3::@3
scrollup3::@3: scope:[scrollup3]  from scrollup3::@2
  (word) scrollup3::line#3 ← phi( scrollup3::@2/(word) scrollup3::line#4 )
  (word) scrollup3::line#1 ← (word) scrollup3::line#3 + (byte/signed byte/word/signed word/dword/signed dword) 40
  (word/signed word/dword/signed dword~) scrollup3::$2 ← (byte/signed byte/word/signed word/dword/signed dword) 40 * (byte/signed byte/word/signed word/dword/signed dword) 24
  (bool~) scrollup3::$3 ← (word) scrollup3::line#1 < (word/signed word/dword/signed dword~) scrollup3::$2
  if((bool~) scrollup3::$3) goto scrollup3::@1
  to:scrollup3::@return
scrollup3::@return: scope:[scrollup3]  from scrollup3::@3
  return 
  to:@return
@4: scope:[]  from @begin
  call main 
  to:@5
@5: scope:[]  from @4
  to:@end
@end: scope:[]  from @5

SYMBOL TABLE SSA
(label) @4
(label) @5
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@return
(byte*) screen
(byte*) screen#0
(void()) scrollup1()
(word~) scrollup1::$0
(word~) scrollup1::$1
(word/signed dword/dword~) scrollup1::$2
(bool~) scrollup1::$3
(word/signed word/dword/signed dword~) scrollup1::$4
(bool~) scrollup1::$5
(label) scrollup1::@1
(label) scrollup1::@2
(label) scrollup1::@3
(label) scrollup1::@return
(byte) scrollup1::c
(byte) scrollup1::c#0
(byte) scrollup1::c#1
(byte) scrollup1::c#2
(word) scrollup1::line
(word) scrollup1::line#0
(word) scrollup1::line#1
(word) scrollup1::line#2
(word) scrollup1::line#3
(word) scrollup1::line#4
(void()) scrollup2()
(byte*~) scrollup2::$0
(bool~) scrollup2::$1
(bool~) scrollup2::$2
(label) scrollup2::@1
(label) scrollup2::@2
(label) scrollup2::@3
(label) scrollup2::@return
(byte) scrollup2::c
(byte) scrollup2::c#0
(byte) scrollup2::c#1
(byte) scrollup2::c#2
(byte) scrollup2::l
(byte) scrollup2::l#0
(byte) scrollup2::l#1
(byte) scrollup2::l#2
(byte) scrollup2::l#3
(byte) scrollup2::l#4
(byte*) scrollup2::line1
(byte*) scrollup2::line1#0
(byte*) scrollup2::line1#1
(byte*) scrollup2::line1#2
(byte*) scrollup2::line1#3
(byte*) scrollup2::line1#4
(byte*) scrollup2::line2
(byte*) scrollup2::line2#0
(byte*) scrollup2::line2#1
(byte*) scrollup2::line2#2
(byte*) scrollup2::line2#3
(byte*) scrollup2::line2#4
(void()) scrollup3()
(word/signed dword/dword~) scrollup3::$0
(bool~) scrollup3::$1
(word/signed word/dword/signed dword~) scrollup3::$2
(bool~) scrollup3::$3
(label) scrollup3::@1
(label) scrollup3::@2
(label) scrollup3::@3
(label) scrollup3::@return
(byte) scrollup3::c
(byte) scrollup3::c#0
(byte) scrollup3::c#1
(byte) scrollup3::c#2
(word) scrollup3::l2
(word) scrollup3::l2#0
(word) scrollup3::l2#1
(word) scrollup3::l2#2
(word) scrollup3::line
(word) scrollup3::line#0
(word) scrollup3::line#1
(word) scrollup3::line#2
(word) scrollup3::line#3
(word) scrollup3::line#4

Culled Empty Block (label) main::@3
Culled Empty Block (label) @5
Successful SSA optimization Pass2CullEmptyBlocks
Alias (word) scrollup1::line#2 = (word) scrollup1::line#3 
Alias (byte*) scrollup2::line2#0 = (byte*~) scrollup2::$0 
Alias (byte) scrollup2::l#2 = (byte) scrollup2::l#3 
Alias (byte*) scrollup2::line2#1 = (byte*) scrollup2::line2#4 
Alias (byte*) scrollup2::line1#1 = (byte*) scrollup2::line1#4 
Alias (word) scrollup3::l2#0 = (word) scrollup3::line#2 
Alias (word) scrollup3::line#3 = (word) scrollup3::line#4 
Successful SSA optimization Pass2AliasElimination
Self Phi Eliminated (word) scrollup1::line#2
Self Phi Eliminated (byte) scrollup2::l#2
Self Phi Eliminated (word) scrollup3::line#3
Successful SSA optimization Pass2SelfPhiElimination
Redundant Phi (word) scrollup1::line#2 (word) scrollup1::line#4
Redundant Phi (byte) scrollup2::l#2 (byte) scrollup2::l#4
Redundant Phi (word) scrollup3::line#3 (word) scrollup3::l2#0
Successful SSA optimization Pass2RedundantPhiElimination
Simple Condition (bool~) scrollup1::$3 [15] if((byte) scrollup1::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup1::@2
Simple Condition (bool~) scrollup1::$5 [20] if((word) scrollup1::line#1<(word/signed word/dword/signed dword~) scrollup1::$4) goto scrollup1::@1
Simple Condition (bool~) scrollup2::$1 [34] if((byte) scrollup2::c#1!=rangelast(0,39)) goto scrollup2::@2
Simple Condition (bool~) scrollup2::$2 [38] if((byte) scrollup2::l#1!=rangelast(0,23)) goto scrollup2::@1
Simple Condition (bool~) scrollup3::$1 [50] if((byte) scrollup3::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup3::@2
Simple Condition (bool~) scrollup3::$3 [55] if((word) scrollup3::line#1<(word/signed word/dword/signed dword~) scrollup3::$2) goto scrollup3::@1
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte*) screen#0 = ((byte*))1024
Constant (const word) scrollup1::line#0 = 0
Constant (const byte) scrollup1::c#0 = 0
Constant (const word/signed word/dword/signed dword) scrollup1::$4 = 40*24
Constant (const byte) scrollup2::l#0 = 0
Constant (const byte) scrollup2::c#0 = 0
Constant (const word) scrollup3::line#0 = 0
Constant (const byte) scrollup3::c#0 = 0
Constant (const word/signed word/dword/signed dword) scrollup3::$2 = 40*24
Successful SSA optimization Pass2ConstantIdentification
Constant (const byte*) scrollup2::line1#0 = screen#0
Constant (const byte*) scrollup2::line2#0 = screen#0+40
Successful SSA optimization Pass2ConstantIdentification
Consolidated array index constant in assignment *(screen#0+40 + scrollup1::$2)
Consolidated array index constant in assignment *(screen#0+40 + scrollup3::$0)
Successful SSA optimization Pass2ConstantAdditionElimination
Inferred type updated to word in [8] (word/signed dword/dword~) scrollup1::$2 ← (word~) scrollup1::$1
Inferred type updated to word in [27] (word/signed dword/dword~) scrollup3::$0 ← (word) scrollup3::l2#2
Resolved ranged next value scrollup2::c#1 ← ++ scrollup2::c#2 to ++
Resolved ranged comparison value if(scrollup2::c#1!=rangelast(0,39)) goto scrollup2::@2 to (byte/signed byte/word/signed word/dword/signed dword) 40
Resolved ranged next value scrollup2::l#1 ← ++ scrollup2::l#4 to ++
Resolved ranged comparison value if(scrollup2::l#1!=rangelast(0,23)) goto scrollup2::@1 to (byte/signed byte/word/signed word/dword/signed dword) 24
Alias (word~) scrollup1::$2 = (word~) scrollup1::$1 
Alias (word) scrollup3::l2#2 = (word~) scrollup3::$0 
Successful SSA optimization Pass2AliasElimination
Inlining constant with var siblings (const word) scrollup1::line#0
Inlining constant with var siblings (const byte) scrollup1::c#0
Inlining constant with var siblings (const byte) scrollup2::l#0
Inlining constant with var siblings (const byte) scrollup2::c#0
Inlining constant with var siblings (const byte*) scrollup2::line1#0
Inlining constant with var siblings (const byte*) scrollup2::line2#0
Inlining constant with var siblings (const word) scrollup3::line#0
Inlining constant with var siblings (const byte) scrollup3::c#0
Constant inlined scrollup2::l#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup3::line#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup3::c#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup3::$2 = (byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24
Constant inlined scrollup1::$4 = (byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24
Constant inlined scrollup2::c#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup1::c#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup1::line#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined scrollup2::line2#0 = (const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40
Constant inlined scrollup2::line1#0 = (const byte*) screen#0
Successful SSA optimization Pass2ConstantInlining
Added new block during phi lifting scrollup3::@5(between scrollup3::@3 and scrollup3::@1)
Added new block during phi lifting scrollup3::@6(between scrollup3::@2 and scrollup3::@2)
Added new block during phi lifting scrollup2::@5(between scrollup2::@3 and scrollup2::@1)
Added new block during phi lifting scrollup2::@6(between scrollup2::@2 and scrollup2::@2)
Added new block during phi lifting scrollup1::@5(between scrollup1::@3 and scrollup1::@1)
Added new block during phi lifting scrollup1::@6(between scrollup1::@2 and scrollup1::@2)
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @4
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@1
Adding NOP phi() at start of main::@2
Adding NOP phi() at start of scrollup3
Adding NOP phi() at start of scrollup2
Adding NOP phi() at start of scrollup1
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to scrollup1:5 scrollup2:7 scrollup3:9 

Created 11 initial phi equivalence classes
Not coalescing [13] scrollup3::l2#4 ← scrollup3::l2#0
Coalesced [22] scrollup3::l2#3 ← scrollup3::line#1
Coalesced [23] scrollup3::l2#5 ← scrollup3::l2#1
Coalesced [24] scrollup3::c#3 ← scrollup3::c#1
Coalesced [27] scrollup2::line2#6 ← scrollup2::line2#3
Coalesced [28] scrollup2::line1#6 ← scrollup2::line1#3
Coalesced [38] scrollup2::line2#5 ← scrollup2::line2#1
Coalesced [39] scrollup2::line1#5 ← scrollup2::line1#1
Coalesced [40] scrollup2::l#5 ← scrollup2::l#1
Coalesced (already) [41] scrollup2::line2#7 ← scrollup2::line2#1
Coalesced (already) [42] scrollup2::line1#7 ← scrollup2::line1#1
Coalesced [43] scrollup2::c#3 ← scrollup2::c#1
Coalesced [55] scrollup1::line#5 ← scrollup1::line#1
Coalesced [56] scrollup1::c#3 ← scrollup1::c#1
Coalesced down to 9 phi equivalence classes
Culled Empty Block (label) scrollup3::@5
Culled Empty Block (label) scrollup3::@6
Culled Empty Block (label) scrollup2::@5
Culled Empty Block (label) scrollup2::@6
Culled Empty Block (label) scrollup1::@5
Culled Empty Block (label) scrollup1::@6
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @4
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of main::@1
Adding NOP phi() at start of main::@2
Adding NOP phi() at start of scrollup3
Adding NOP phi() at start of scrollup2
Adding NOP phi() at start of scrollup1

FINAL CONTROL FLOW GRAPH
@begin: scope:[]  from
  [0] phi()
  to:@4
@4: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @4
  [3] phi()
main: scope:[main]  from @4
  [4] phi()
  [5] call scrollup1 
  to:main::@1
main::@1: scope:[main]  from main
  [6] phi()
  [7] call scrollup2 
  to:main::@2
main::@2: scope:[main]  from main::@1
  [8] phi()
  [9] call scrollup3 
  to:main::@return
main::@return: scope:[main]  from main::@2
  [10] return 
  to:@return
scrollup3: scope:[scrollup3]  from main::@2
  [11] phi()
  to:scrollup3::@1
scrollup3::@1: scope:[scrollup3]  from scrollup3 scrollup3::@3
  [12] (word) scrollup3::l2#0 ← phi( scrollup3/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup3::@3/(word) scrollup3::line#1 )
  [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0
  to:scrollup3::@2
scrollup3::@2: scope:[scrollup3]  from scrollup3::@1 scrollup3::@2
  [14] (byte) scrollup3::c#2 ← phi( scrollup3::@1/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup3::@2/(byte) scrollup3::c#1 )
  [14] (word) scrollup3::l2#2 ← phi( scrollup3::@1/(word~) scrollup3::l2#4 scrollup3::@2/(word) scrollup3::l2#1 )
  [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2)
  [16] (word) scrollup3::l2#1 ← ++ (word) scrollup3::l2#2
  [17] (byte) scrollup3::c#1 ← ++ (byte) scrollup3::c#2
  [18] if((byte) scrollup3::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup3::@2
  to:scrollup3::@3
scrollup3::@3: scope:[scrollup3]  from scrollup3::@2
  [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40
  [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1
  to:scrollup3::@return
scrollup3::@return: scope:[scrollup3]  from scrollup3::@3
  [21] return 
  to:@return
scrollup2: scope:[scrollup2]  from main::@1
  [22] phi()
  to:scrollup2::@1
scrollup2::@1: scope:[scrollup2]  from scrollup2 scrollup2::@3
  [23] (byte) scrollup2::l#4 ← phi( scrollup2/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup2::@3/(byte) scrollup2::l#1 )
  [23] (byte*) scrollup2::line1#3 ← phi( scrollup2/(const byte*) screen#0 scrollup2::@3/(byte*) scrollup2::line1#1 )
  [23] (byte*) scrollup2::line2#3 ← phi( scrollup2/(const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 scrollup2::@3/(byte*) scrollup2::line2#1 )
  to:scrollup2::@2
scrollup2::@2: scope:[scrollup2]  from scrollup2::@1 scrollup2::@2
  [24] (byte) scrollup2::c#2 ← phi( scrollup2::@1/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup2::@2/(byte) scrollup2::c#1 )
  [24] (byte*) scrollup2::line1#2 ← phi( scrollup2::@1/(byte*) scrollup2::line1#3 scrollup2::@2/(byte*) scrollup2::line1#1 )
  [24] (byte*) scrollup2::line2#2 ← phi( scrollup2::@1/(byte*) scrollup2::line2#3 scrollup2::@2/(byte*) scrollup2::line2#1 )
  [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2)
  [26] (byte*) scrollup2::line1#1 ← ++ (byte*) scrollup2::line1#2
  [27] (byte*) scrollup2::line2#1 ← ++ (byte*) scrollup2::line2#2
  [28] (byte) scrollup2::c#1 ← ++ (byte) scrollup2::c#2
  [29] if((byte) scrollup2::c#1!=(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup2::@2
  to:scrollup2::@3
scrollup2::@3: scope:[scrollup2]  from scrollup2::@2
  [30] (byte) scrollup2::l#1 ← ++ (byte) scrollup2::l#4
  [31] if((byte) scrollup2::l#1!=(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup2::@1
  to:scrollup2::@return
scrollup2::@return: scope:[scrollup2]  from scrollup2::@3
  [32] return 
  to:@return
scrollup1: scope:[scrollup1]  from main
  [33] phi()
  to:scrollup1::@1
scrollup1::@1: scope:[scrollup1]  from scrollup1 scrollup1::@3
  [34] (word) scrollup1::line#4 ← phi( scrollup1/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup1::@3/(word) scrollup1::line#1 )
  to:scrollup1::@2
scrollup1::@2: scope:[scrollup1]  from scrollup1::@1 scrollup1::@2
  [35] (byte) scrollup1::c#2 ← phi( scrollup1::@1/(byte/signed byte/word/signed word/dword/signed dword) 0 scrollup1::@2/(byte) scrollup1::c#1 )
  [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2
  [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2
  [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2)
  [39] (byte) scrollup1::c#1 ← ++ (byte) scrollup1::c#2
  [40] if((byte) scrollup1::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup1::@2
  to:scrollup1::@3
scrollup1::@3: scope:[scrollup1]  from scrollup1::@2
  [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40
  [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1
  to:scrollup1::@return
scrollup1::@return: scope:[scrollup1]  from scrollup1::@3
  [43] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(byte*) screen
(void()) scrollup1()
(word~) scrollup1::$0 101.0
(word~) scrollup1::$2 202.0
(byte) scrollup1::c
(byte) scrollup1::c#1 151.5
(byte) scrollup1::c#2 101.0
(word) scrollup1::line
(word) scrollup1::line#1 16.5
(word) scrollup1::line#4 32.0
(void()) scrollup2()
(byte) scrollup2::c
(byte) scrollup2::c#1 151.5
(byte) scrollup2::c#2 50.5
(byte) scrollup2::l
(byte) scrollup2::l#1 16.5
(byte) scrollup2::l#4 3.142857142857143
(byte*) scrollup2::line1
(byte*) scrollup2::line1#1 35.5
(byte*) scrollup2::line1#2 157.0
(byte*) scrollup2::line1#3 22.0
(byte*) scrollup2::line2
(byte*) scrollup2::line2#1 42.599999999999994
(byte*) scrollup2::line2#2 104.66666666666666
(byte*) scrollup2::line2#3 22.0
(void()) scrollup3()
(byte) scrollup3::c
(byte) scrollup3::c#1 151.5
(byte) scrollup3::c#2 67.33333333333333
(word) scrollup3::l2
(word) scrollup3::l2#0 4.714285714285714
(word) scrollup3::l2#1 67.33333333333333
(word) scrollup3::l2#2 207.5
(word~) scrollup3::l2#4 22.0
(word) scrollup3::line
(word) scrollup3::line#1 16.5

Initial phi equivalence classes
[ scrollup3::l2#0 scrollup3::line#1 ]
[ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ]
[ scrollup3::c#2 scrollup3::c#1 ]
[ scrollup2::l#4 scrollup2::l#1 ]
[ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ]
[ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ]
[ scrollup2::c#2 scrollup2::c#1 ]
[ scrollup1::line#4 scrollup1::line#1 ]
[ scrollup1::c#2 scrollup1::c#1 ]
Added variable scrollup1::$0 to zero page equivalence class [ scrollup1::$0 ]
Added variable scrollup1::$2 to zero page equivalence class [ scrollup1::$2 ]
Complete equivalence classes
[ scrollup3::l2#0 scrollup3::line#1 ]
[ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ]
[ scrollup3::c#2 scrollup3::c#1 ]
[ scrollup2::l#4 scrollup2::l#1 ]
[ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ]
[ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ]
[ scrollup2::c#2 scrollup2::c#1 ]
[ scrollup1::line#4 scrollup1::line#1 ]
[ scrollup1::c#2 scrollup1::c#1 ]
[ scrollup1::$0 ]
[ scrollup1::$2 ]
Allocated zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 ]
Allocated zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ]
Allocated zp ZP_BYTE:6 [ scrollup3::c#2 scrollup3::c#1 ]
Allocated zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ]
Allocated zp ZP_WORD:8 [ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ]
Allocated zp ZP_WORD:10 [ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ]
Allocated zp ZP_BYTE:12 [ scrollup2::c#2 scrollup2::c#1 ]
Allocated zp ZP_WORD:13 [ scrollup1::line#4 scrollup1::line#1 ]
Allocated zp ZP_BYTE:15 [ scrollup1::c#2 scrollup1::c#1 ]
Allocated zp ZP_WORD:16 [ scrollup1::$0 ]
Allocated zp ZP_WORD:18 [ scrollup1::$2 ]

INITIAL ASM
//SEG0 File Comments
// Tests different ways of scrolling up the screen
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
  .label screen = $400
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @4 [phi:@begin->@4]
b4_from_bbegin:
  jmp b4
//SEG5 @4
b4:
//SEG6 [2] call main 
//SEG7 [4] phi from @4 to main [phi:@4->main]
main_from_b4:
  jsr main
//SEG8 [3] phi from @4 to @end [phi:@4->@end]
bend_from_b4:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
  //SEG11 [5] call scrollup1 
  //SEG12 [33] phi from main to scrollup1 [phi:main->scrollup1]
  scrollup1_from_main:
    jsr scrollup1
  //SEG13 [6] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    jmp b1
  //SEG14 main::@1
  b1:
  //SEG15 [7] call scrollup2 
  //SEG16 [22] phi from main::@1 to scrollup2 [phi:main::@1->scrollup2]
  scrollup2_from_b1:
    jsr scrollup2
  //SEG17 [8] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  b2_from_b1:
    jmp b2
  //SEG18 main::@2
  b2:
  //SEG19 [9] call scrollup3 
  //SEG20 [11] phi from main::@2 to scrollup3 [phi:main::@2->scrollup3]
  scrollup3_from_b2:
    jsr scrollup3
    jmp breturn
  //SEG21 main::@return
  breturn:
  //SEG22 [10] return 
    rts
}
//SEG23 scrollup3
scrollup3: {
    .label l2 = 2
    .label l2_1 = 4
    .label c = 6
    .label line = 2
    .label l2_2 = 4
    .label l2_4 = 4
  //SEG24 [12] phi from scrollup3 to scrollup3::@1 [phi:scrollup3->scrollup3::@1]
  b1_from_scrollup3:
  //SEG25 [12] phi (word) scrollup3::l2#0 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3->scrollup3::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta l2
    lda #>0
    sta l2+1
    jmp b1
  //SEG26 [12] phi from scrollup3::@3 to scrollup3::@1 [phi:scrollup3::@3->scrollup3::@1]
  b1_from_b3:
  //SEG27 [12] phi (word) scrollup3::l2#0 = (word) scrollup3::line#1 [phi:scrollup3::@3->scrollup3::@1#0] -- register_copy 
    jmp b1
  //SEG28 scrollup3::@1
  b1:
  //SEG29 [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0 -- vwuz1=vwuz2 
    lda l2
    sta l2_4
    lda l2+1
    sta l2_4+1
  //SEG30 [14] phi from scrollup3::@1 to scrollup3::@2 [phi:scrollup3::@1->scrollup3::@2]
  b2_from_b1:
  //SEG31 [14] phi (byte) scrollup3::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3::@1->scrollup3::@2#0] -- vbuz1=vbuc1 
    lda #0
    sta c
  //SEG32 [14] phi (word) scrollup3::l2#2 = (word~) scrollup3::l2#4 [phi:scrollup3::@1->scrollup3::@2#1] -- register_copy 
    jmp b2
  //SEG33 [14] phi from scrollup3::@2 to scrollup3::@2 [phi:scrollup3::@2->scrollup3::@2]
  b2_from_b2:
  //SEG34 [14] phi (byte) scrollup3::c#2 = (byte) scrollup3::c#1 [phi:scrollup3::@2->scrollup3::@2#0] -- register_copy 
  //SEG35 [14] phi (word) scrollup3::l2#2 = (word) scrollup3::l2#1 [phi:scrollup3::@2->scrollup3::@2#1] -- register_copy 
    jmp b2
  //SEG36 scrollup3::@2
  b2:
  //SEG37 [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz1 
    lda #<screen
    clc
    adc l2_2
    sta !a1++1
    lda #>screen
    adc l2_2+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc l2_2
    sta !a2++1
    lda #>screen+$28
    adc l2_2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG38 [16] (word) scrollup3::l2#1 ← ++ (word) scrollup3::l2#2 -- vwuz1=_inc_vwuz1 
    inc l2_1
    bne !+
    inc l2_1+1
  !:
  //SEG39 [17] (byte) scrollup3::c#1 ← ++ (byte) scrollup3::c#2 -- vbuz1=_inc_vbuz1 
    inc c
  //SEG40 [18] if((byte) scrollup3::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup3::@2 -- vbuz1_lt_vbuc1_then_la1 
    lda c
    cmp #$28
    bcc b2_from_b2
    jmp b3
  //SEG41 scrollup3::@3
  b3:
  //SEG42 [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG43 [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b3
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b3
  !:
    jmp breturn
  //SEG44 scrollup3::@return
  breturn:
  //SEG45 [21] return 
    rts
}
//SEG46 scrollup2
scrollup2: {
    .label line1 = $a
    .label line2 = 8
    .label c = $c
    .label l = 7
  //SEG47 [23] phi from scrollup2 to scrollup2::@1 [phi:scrollup2->scrollup2::@1]
  b1_from_scrollup2:
  //SEG48 [23] phi (byte) scrollup2::l#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2->scrollup2::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta l
  //SEG49 [23] phi (byte*) scrollup2::line1#3 = (const byte*) screen#0 [phi:scrollup2->scrollup2::@1#1] -- pbuz1=pbuc1 
    lda #<screen
    sta line1
    lda #>screen
    sta line1+1
  //SEG50 [23] phi (byte*) scrollup2::line2#3 = (const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 [phi:scrollup2->scrollup2::@1#2] -- pbuz1=pbuc1 
    lda #<screen+$28
    sta line2
    lda #>screen+$28
    sta line2+1
    jmp b1
  //SEG51 [23] phi from scrollup2::@3 to scrollup2::@1 [phi:scrollup2::@3->scrollup2::@1]
  b1_from_b3:
  //SEG52 [23] phi (byte) scrollup2::l#4 = (byte) scrollup2::l#1 [phi:scrollup2::@3->scrollup2::@1#0] -- register_copy 
  //SEG53 [23] phi (byte*) scrollup2::line1#3 = (byte*) scrollup2::line1#1 [phi:scrollup2::@3->scrollup2::@1#1] -- register_copy 
  //SEG54 [23] phi (byte*) scrollup2::line2#3 = (byte*) scrollup2::line2#1 [phi:scrollup2::@3->scrollup2::@1#2] -- register_copy 
    jmp b1
  //SEG55 scrollup2::@1
  b1:
  //SEG56 [24] phi from scrollup2::@1 to scrollup2::@2 [phi:scrollup2::@1->scrollup2::@2]
  b2_from_b1:
  //SEG57 [24] phi (byte) scrollup2::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2::@1->scrollup2::@2#0] -- vbuz1=vbuc1 
    lda #0
    sta c
  //SEG58 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#3 [phi:scrollup2::@1->scrollup2::@2#1] -- register_copy 
  //SEG59 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#3 [phi:scrollup2::@1->scrollup2::@2#2] -- register_copy 
    jmp b2
  //SEG60 [24] phi from scrollup2::@2 to scrollup2::@2 [phi:scrollup2::@2->scrollup2::@2]
  b2_from_b2:
  //SEG61 [24] phi (byte) scrollup2::c#2 = (byte) scrollup2::c#1 [phi:scrollup2::@2->scrollup2::@2#0] -- register_copy 
  //SEG62 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#1 [phi:scrollup2::@2->scrollup2::@2#1] -- register_copy 
  //SEG63 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#1 [phi:scrollup2::@2->scrollup2::@2#2] -- register_copy 
    jmp b2
  //SEG64 scrollup2::@2
  b2:
  //SEG65 [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2) -- _deref_pbuz1=_deref_pbuz2 
    ldy #0
    lda (line2),y
    ldy #0
    sta (line1),y
  //SEG66 [26] (byte*) scrollup2::line1#1 ← ++ (byte*) scrollup2::line1#2 -- pbuz1=_inc_pbuz1 
    inc line1
    bne !+
    inc line1+1
  !:
  //SEG67 [27] (byte*) scrollup2::line2#1 ← ++ (byte*) scrollup2::line2#2 -- pbuz1=_inc_pbuz1 
    inc line2
    bne !+
    inc line2+1
  !:
  //SEG68 [28] (byte) scrollup2::c#1 ← ++ (byte) scrollup2::c#2 -- vbuz1=_inc_vbuz1 
    inc c
  //SEG69 [29] if((byte) scrollup2::c#1!=(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup2::@2 -- vbuz1_neq_vbuc1_then_la1 
    lda c
    cmp #$28
    bne b2_from_b2
    jmp b3
  //SEG70 scrollup2::@3
  b3:
  //SEG71 [30] (byte) scrollup2::l#1 ← ++ (byte) scrollup2::l#4 -- vbuz1=_inc_vbuz1 
    inc l
  //SEG72 [31] if((byte) scrollup2::l#1!=(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup2::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda l
    cmp #$18
    bne b1_from_b3
    jmp breturn
  //SEG73 scrollup2::@return
  breturn:
  //SEG74 [32] return 
    rts
}
//SEG75 scrollup1
scrollup1: {
    .label _0 = $10
    .label _2 = $12
    .label c = $f
    .label line = $d
  //SEG76 [34] phi from scrollup1 to scrollup1::@1 [phi:scrollup1->scrollup1::@1]
  b1_from_scrollup1:
  //SEG77 [34] phi (word) scrollup1::line#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1->scrollup1::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    lda #>0
    sta line+1
    jmp b1
  //SEG78 [34] phi from scrollup1::@3 to scrollup1::@1 [phi:scrollup1::@3->scrollup1::@1]
  b1_from_b3:
  //SEG79 [34] phi (word) scrollup1::line#4 = (word) scrollup1::line#1 [phi:scrollup1::@3->scrollup1::@1#0] -- register_copy 
    jmp b1
  //SEG80 scrollup1::@1
  b1:
  //SEG81 [35] phi from scrollup1::@1 to scrollup1::@2 [phi:scrollup1::@1->scrollup1::@2]
  b2_from_b1:
  //SEG82 [35] phi (byte) scrollup1::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1::@1->scrollup1::@2#0] -- vbuz1=vbuc1 
    lda #0
    sta c
    jmp b2
  //SEG83 [35] phi from scrollup1::@2 to scrollup1::@2 [phi:scrollup1::@2->scrollup1::@2]
  b2_from_b2:
  //SEG84 [35] phi (byte) scrollup1::c#2 = (byte) scrollup1::c#1 [phi:scrollup1::@2->scrollup1::@2#0] -- register_copy 
    jmp b2
  //SEG85 scrollup1::@2
  b2:
  //SEG86 [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuz3 
    lda c
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG87 [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuz3 
    lda c
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG88 [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG89 [39] (byte) scrollup1::c#1 ← ++ (byte) scrollup1::c#2 -- vbuz1=_inc_vbuz1 
    inc c
  //SEG90 [40] if((byte) scrollup1::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup1::@2 -- vbuz1_lt_vbuc1_then_la1 
    lda c
    cmp #$28
    bcc b2_from_b2
    jmp b3
  //SEG91 scrollup1::@3
  b3:
  //SEG92 [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG93 [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b3
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b3
  !:
    jmp breturn
  //SEG94 scrollup1::@return
  breturn:
  //SEG95 [43] return 
    rts
}

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0 [ scrollup3::l2#0 scrollup3::l2#4 ] ( main:2::scrollup3:9 [ scrollup3::l2#0 scrollup3::l2#4 ] ) always clobbers reg byte a 
Statement [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2) [ scrollup3::l2#0 scrollup3::l2#2 scrollup3::c#2 ] ( main:2::scrollup3:9 [ scrollup3::l2#0 scrollup3::l2#2 scrollup3::c#2 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:6 [ scrollup3::c#2 scrollup3::c#1 ]
Statement [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ scrollup3::line#1 ] ( main:2::scrollup3:9 [ scrollup3::line#1 ] ) always clobbers reg byte a 
Statement [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1 [ scrollup3::line#1 ] ( main:2::scrollup3:9 [ scrollup3::line#1 ] ) always clobbers reg byte a 
Statement [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2) [ scrollup2::l#4 scrollup2::line2#2 scrollup2::line1#2 scrollup2::c#2 ] ( main:2::scrollup2:7 [ scrollup2::l#4 scrollup2::line2#2 scrollup2::line1#2 scrollup2::c#2 ] ) always clobbers reg byte a reg byte y 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ]
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ]
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:12 [ scrollup2::c#2 scrollup2::c#1 ]
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:12 [ scrollup2::c#2 scrollup2::c#1 ]
Statement [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:15 [ scrollup1::c#2 scrollup1::c#1 ]
Statement [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 scrollup1::$2 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 scrollup1::$2 ] ) always clobbers reg byte a 
Statement [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2) [ scrollup1::line#4 scrollup1::c#2 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 ] ) always clobbers reg byte a 
Statement [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ scrollup1::line#1 ] ( main:2::scrollup1:5 [ scrollup1::line#1 ] ) always clobbers reg byte a 
Statement [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1 [ scrollup1::line#1 ] ( main:2::scrollup1:5 [ scrollup1::line#1 ] ) always clobbers reg byte a 
Statement [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0 [ scrollup3::l2#0 scrollup3::l2#4 ] ( main:2::scrollup3:9 [ scrollup3::l2#0 scrollup3::l2#4 ] ) always clobbers reg byte a 
Statement [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2) [ scrollup3::l2#0 scrollup3::l2#2 scrollup3::c#2 ] ( main:2::scrollup3:9 [ scrollup3::l2#0 scrollup3::l2#2 scrollup3::c#2 ] ) always clobbers reg byte a 
Statement [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ scrollup3::line#1 ] ( main:2::scrollup3:9 [ scrollup3::line#1 ] ) always clobbers reg byte a 
Statement [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1 [ scrollup3::line#1 ] ( main:2::scrollup3:9 [ scrollup3::line#1 ] ) always clobbers reg byte a 
Statement [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2) [ scrollup2::l#4 scrollup2::line2#2 scrollup2::line1#2 scrollup2::c#2 ] ( main:2::scrollup2:7 [ scrollup2::l#4 scrollup2::line2#2 scrollup2::line1#2 scrollup2::c#2 ] ) always clobbers reg byte a reg byte y 
Statement [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 ] ) always clobbers reg byte a 
Statement [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 scrollup1::$2 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 scrollup1::$0 scrollup1::$2 ] ) always clobbers reg byte a 
Statement [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2) [ scrollup1::line#4 scrollup1::c#2 ] ( main:2::scrollup1:5 [ scrollup1::line#4 scrollup1::c#2 ] ) always clobbers reg byte a 
Statement [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ scrollup1::line#1 ] ( main:2::scrollup1:5 [ scrollup1::line#1 ] ) always clobbers reg byte a 
Statement [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1 [ scrollup1::line#1 ] ( main:2::scrollup1:5 [ scrollup1::line#1 ] ) always clobbers reg byte a 
Potential registers zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 ] : zp ZP_WORD:2 , 
Potential registers zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ] : zp ZP_WORD:4 , 
Potential registers zp ZP_BYTE:6 [ scrollup3::c#2 scrollup3::c#1 ] : zp ZP_BYTE:6 , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ] : zp ZP_BYTE:7 , reg byte x , 
Potential registers zp ZP_WORD:8 [ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ] : zp ZP_WORD:8 , 
Potential registers zp ZP_WORD:10 [ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ] : zp ZP_WORD:10 , 
Potential registers zp ZP_BYTE:12 [ scrollup2::c#2 scrollup2::c#1 ] : zp ZP_BYTE:12 , reg byte x , 
Potential registers zp ZP_WORD:13 [ scrollup1::line#4 scrollup1::line#1 ] : zp ZP_WORD:13 , 
Potential registers zp ZP_BYTE:15 [ scrollup1::c#2 scrollup1::c#1 ] : zp ZP_BYTE:15 , reg byte x , reg byte y , 
Potential registers zp ZP_WORD:16 [ scrollup1::$0 ] : zp ZP_WORD:16 , 
Potential registers zp ZP_WORD:18 [ scrollup1::$2 ] : zp ZP_WORD:18 , 

REGISTER UPLIFT SCOPES
Uplift Scope [scrollup2] 214.5: zp ZP_WORD:10 [ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ] 202: zp ZP_BYTE:12 [ scrollup2::c#2 scrollup2::c#1 ] 169.27: zp ZP_WORD:8 [ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ] 19.64: zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ] 
Uplift Scope [scrollup1] 252.5: zp ZP_BYTE:15 [ scrollup1::c#2 scrollup1::c#1 ] 202: zp ZP_WORD:18 [ scrollup1::$2 ] 101: zp ZP_WORD:16 [ scrollup1::$0 ] 48.5: zp ZP_WORD:13 [ scrollup1::line#4 scrollup1::line#1 ] 
Uplift Scope [scrollup3] 296.83: zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ] 218.83: zp ZP_BYTE:6 [ scrollup3::c#2 scrollup3::c#1 ] 21.21: zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 ] 
Uplift Scope [main] 
Uplift Scope [] 

Uplifting [scrollup2] best 27488 combination zp ZP_WORD:10 [ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ] reg byte x [ scrollup2::c#2 scrollup2::c#1 ] zp ZP_WORD:8 [ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ] zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ] 
Uplifting [scrollup1] best 26388 combination reg byte x [ scrollup1::c#2 scrollup1::c#1 ] zp ZP_WORD:18 [ scrollup1::$2 ] zp ZP_WORD:16 [ scrollup1::$0 ] zp ZP_WORD:13 [ scrollup1::line#4 scrollup1::line#1 ] 
Uplifting [scrollup3] best 25488 combination zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ] reg byte x [ scrollup3::c#2 scrollup3::c#1 ] zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 ] 
Uplifting [main] best 25488 combination 
Uplifting [] best 25488 combination 
Attempting to uplift remaining variables inzp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ]
Uplifting [scrollup2] best 25488 combination zp ZP_BYTE:7 [ scrollup2::l#4 scrollup2::l#1 ] 
Coalescing zero page register [ zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 ] ] with [ zp ZP_WORD:8 [ scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ] ]
Coalescing zero page register [ zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 ] ] with [ zp ZP_WORD:13 [ scrollup1::line#4 scrollup1::line#1 ] ]
Coalescing zero page register [ zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 ] ] with [ zp ZP_WORD:10 [ scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ] ]
Coalescing zero page register [ zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 ] ] with [ zp ZP_WORD:16 [ scrollup1::$0 ] ]
Allocated (was zp ZP_BYTE:7) zp ZP_BYTE:6 [ scrollup2::l#4 scrollup2::l#1 ]
Allocated (was zp ZP_WORD:18) zp ZP_WORD:7 [ scrollup1::$2 ]

ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
// Tests different ways of scrolling up the screen
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
  .label screen = $400
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @4 [phi:@begin->@4]
b4_from_bbegin:
  jmp b4
//SEG5 @4
b4:
//SEG6 [2] call main 
//SEG7 [4] phi from @4 to main [phi:@4->main]
main_from_b4:
  jsr main
//SEG8 [3] phi from @4 to @end [phi:@4->@end]
bend_from_b4:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
  //SEG11 [5] call scrollup1 
  //SEG12 [33] phi from main to scrollup1 [phi:main->scrollup1]
  scrollup1_from_main:
    jsr scrollup1
  //SEG13 [6] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
    jmp b1
  //SEG14 main::@1
  b1:
  //SEG15 [7] call scrollup2 
  //SEG16 [22] phi from main::@1 to scrollup2 [phi:main::@1->scrollup2]
  scrollup2_from_b1:
    jsr scrollup2
  //SEG17 [8] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  b2_from_b1:
    jmp b2
  //SEG18 main::@2
  b2:
  //SEG19 [9] call scrollup3 
  //SEG20 [11] phi from main::@2 to scrollup3 [phi:main::@2->scrollup3]
  scrollup3_from_b2:
    jsr scrollup3
    jmp breturn
  //SEG21 main::@return
  breturn:
  //SEG22 [10] return 
    rts
}
//SEG23 scrollup3
scrollup3: {
    .label l2 = 2
    .label l2_1 = 4
    .label line = 2
    .label l2_2 = 4
    .label l2_4 = 4
  //SEG24 [12] phi from scrollup3 to scrollup3::@1 [phi:scrollup3->scrollup3::@1]
  b1_from_scrollup3:
  //SEG25 [12] phi (word) scrollup3::l2#0 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3->scrollup3::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta l2
    lda #>0
    sta l2+1
    jmp b1
  //SEG26 [12] phi from scrollup3::@3 to scrollup3::@1 [phi:scrollup3::@3->scrollup3::@1]
  b1_from_b3:
  //SEG27 [12] phi (word) scrollup3::l2#0 = (word) scrollup3::line#1 [phi:scrollup3::@3->scrollup3::@1#0] -- register_copy 
    jmp b1
  //SEG28 scrollup3::@1
  b1:
  //SEG29 [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0 -- vwuz1=vwuz2 
    lda l2
    sta l2_4
    lda l2+1
    sta l2_4+1
  //SEG30 [14] phi from scrollup3::@1 to scrollup3::@2 [phi:scrollup3::@1->scrollup3::@2]
  b2_from_b1:
  //SEG31 [14] phi (byte) scrollup3::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3::@1->scrollup3::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG32 [14] phi (word) scrollup3::l2#2 = (word~) scrollup3::l2#4 [phi:scrollup3::@1->scrollup3::@2#1] -- register_copy 
    jmp b2
  //SEG33 [14] phi from scrollup3::@2 to scrollup3::@2 [phi:scrollup3::@2->scrollup3::@2]
  b2_from_b2:
  //SEG34 [14] phi (byte) scrollup3::c#2 = (byte) scrollup3::c#1 [phi:scrollup3::@2->scrollup3::@2#0] -- register_copy 
  //SEG35 [14] phi (word) scrollup3::l2#2 = (word) scrollup3::l2#1 [phi:scrollup3::@2->scrollup3::@2#1] -- register_copy 
    jmp b2
  //SEG36 scrollup3::@2
  b2:
  //SEG37 [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz1 
    lda #<screen
    clc
    adc l2_2
    sta !a1++1
    lda #>screen
    adc l2_2+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc l2_2
    sta !a2++1
    lda #>screen+$28
    adc l2_2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG38 [16] (word) scrollup3::l2#1 ← ++ (word) scrollup3::l2#2 -- vwuz1=_inc_vwuz1 
    inc l2_1
    bne !+
    inc l2_1+1
  !:
  //SEG39 [17] (byte) scrollup3::c#1 ← ++ (byte) scrollup3::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG40 [18] if((byte) scrollup3::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup3::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2_from_b2
    jmp b3
  //SEG41 scrollup3::@3
  b3:
  //SEG42 [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG43 [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b3
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b3
  !:
    jmp breturn
  //SEG44 scrollup3::@return
  breturn:
  //SEG45 [21] return 
    rts
}
//SEG46 scrollup2
scrollup2: {
    .label line1 = 4
    .label line2 = 2
    .label l = 6
  //SEG47 [23] phi from scrollup2 to scrollup2::@1 [phi:scrollup2->scrollup2::@1]
  b1_from_scrollup2:
  //SEG48 [23] phi (byte) scrollup2::l#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2->scrollup2::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta l
  //SEG49 [23] phi (byte*) scrollup2::line1#3 = (const byte*) screen#0 [phi:scrollup2->scrollup2::@1#1] -- pbuz1=pbuc1 
    lda #<screen
    sta line1
    lda #>screen
    sta line1+1
  //SEG50 [23] phi (byte*) scrollup2::line2#3 = (const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 [phi:scrollup2->scrollup2::@1#2] -- pbuz1=pbuc1 
    lda #<screen+$28
    sta line2
    lda #>screen+$28
    sta line2+1
    jmp b1
  //SEG51 [23] phi from scrollup2::@3 to scrollup2::@1 [phi:scrollup2::@3->scrollup2::@1]
  b1_from_b3:
  //SEG52 [23] phi (byte) scrollup2::l#4 = (byte) scrollup2::l#1 [phi:scrollup2::@3->scrollup2::@1#0] -- register_copy 
  //SEG53 [23] phi (byte*) scrollup2::line1#3 = (byte*) scrollup2::line1#1 [phi:scrollup2::@3->scrollup2::@1#1] -- register_copy 
  //SEG54 [23] phi (byte*) scrollup2::line2#3 = (byte*) scrollup2::line2#1 [phi:scrollup2::@3->scrollup2::@1#2] -- register_copy 
    jmp b1
  //SEG55 scrollup2::@1
  b1:
  //SEG56 [24] phi from scrollup2::@1 to scrollup2::@2 [phi:scrollup2::@1->scrollup2::@2]
  b2_from_b1:
  //SEG57 [24] phi (byte) scrollup2::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2::@1->scrollup2::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG58 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#3 [phi:scrollup2::@1->scrollup2::@2#1] -- register_copy 
  //SEG59 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#3 [phi:scrollup2::@1->scrollup2::@2#2] -- register_copy 
    jmp b2
  //SEG60 [24] phi from scrollup2::@2 to scrollup2::@2 [phi:scrollup2::@2->scrollup2::@2]
  b2_from_b2:
  //SEG61 [24] phi (byte) scrollup2::c#2 = (byte) scrollup2::c#1 [phi:scrollup2::@2->scrollup2::@2#0] -- register_copy 
  //SEG62 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#1 [phi:scrollup2::@2->scrollup2::@2#1] -- register_copy 
  //SEG63 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#1 [phi:scrollup2::@2->scrollup2::@2#2] -- register_copy 
    jmp b2
  //SEG64 scrollup2::@2
  b2:
  //SEG65 [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2) -- _deref_pbuz1=_deref_pbuz2 
    ldy #0
    lda (line2),y
    ldy #0
    sta (line1),y
  //SEG66 [26] (byte*) scrollup2::line1#1 ← ++ (byte*) scrollup2::line1#2 -- pbuz1=_inc_pbuz1 
    inc line1
    bne !+
    inc line1+1
  !:
  //SEG67 [27] (byte*) scrollup2::line2#1 ← ++ (byte*) scrollup2::line2#2 -- pbuz1=_inc_pbuz1 
    inc line2
    bne !+
    inc line2+1
  !:
  //SEG68 [28] (byte) scrollup2::c#1 ← ++ (byte) scrollup2::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG69 [29] if((byte) scrollup2::c#1!=(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup2::@2 -- vbuxx_neq_vbuc1_then_la1 
    cpx #$28
    bne b2_from_b2
    jmp b3
  //SEG70 scrollup2::@3
  b3:
  //SEG71 [30] (byte) scrollup2::l#1 ← ++ (byte) scrollup2::l#4 -- vbuz1=_inc_vbuz1 
    inc l
  //SEG72 [31] if((byte) scrollup2::l#1!=(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup2::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda l
    cmp #$18
    bne b1_from_b3
    jmp breturn
  //SEG73 scrollup2::@return
  breturn:
  //SEG74 [32] return 
    rts
}
//SEG75 scrollup1
scrollup1: {
    .label _0 = 4
    .label _2 = 7
    .label line = 2
  //SEG76 [34] phi from scrollup1 to scrollup1::@1 [phi:scrollup1->scrollup1::@1]
  b1_from_scrollup1:
  //SEG77 [34] phi (word) scrollup1::line#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1->scrollup1::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    lda #>0
    sta line+1
    jmp b1
  //SEG78 [34] phi from scrollup1::@3 to scrollup1::@1 [phi:scrollup1::@3->scrollup1::@1]
  b1_from_b3:
  //SEG79 [34] phi (word) scrollup1::line#4 = (word) scrollup1::line#1 [phi:scrollup1::@3->scrollup1::@1#0] -- register_copy 
    jmp b1
  //SEG80 scrollup1::@1
  b1:
  //SEG81 [35] phi from scrollup1::@1 to scrollup1::@2 [phi:scrollup1::@1->scrollup1::@2]
  b2_from_b1:
  //SEG82 [35] phi (byte) scrollup1::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1::@1->scrollup1::@2#0] -- vbuxx=vbuc1 
    ldx #0
    jmp b2
  //SEG83 [35] phi from scrollup1::@2 to scrollup1::@2 [phi:scrollup1::@2->scrollup1::@2]
  b2_from_b2:
  //SEG84 [35] phi (byte) scrollup1::c#2 = (byte) scrollup1::c#1 [phi:scrollup1::@2->scrollup1::@2#0] -- register_copy 
    jmp b2
  //SEG85 scrollup1::@2
  b2:
  //SEG86 [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG87 [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG88 [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG89 [39] (byte) scrollup1::c#1 ← ++ (byte) scrollup1::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG90 [40] if((byte) scrollup1::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup1::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2_from_b2
    jmp b3
  //SEG91 scrollup1::@3
  b3:
  //SEG92 [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG93 [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b3
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b3
  !:
    jmp breturn
  //SEG94 scrollup1::@return
  breturn:
  //SEG95 [43] return 
    rts
}

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b4
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp breturn
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b3
Removing instruction jmp breturn
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b3
Removing instruction jmp breturn
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b3
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction lda #>0
Removing instruction lda line+1
Removing instruction ldy #0
Removing instruction lda #>0
Removing instruction lda line+1
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Replacing label b2_from_b2 with b2
Replacing label b1_from_b3 with b1
Replacing label b1_from_b3 with b1
Replacing label b2_from_b2 with b2
Replacing label b1_from_b3 with b1
Replacing label b2_from_b2 with b2
Replacing label b1_from_b3 with b1
Replacing label b1_from_b3 with b1
Removing instruction b4_from_bbegin:
Removing instruction b4:
Removing instruction main_from_b4:
Removing instruction bend_from_b4:
Removing instruction b1_from_main:
Removing instruction scrollup2_from_b1:
Removing instruction b2_from_b1:
Removing instruction scrollup3_from_b2:
Removing instruction b1_from_b3:
Removing instruction b2_from_b2:
Removing instruction b1_from_b3:
Removing instruction b2_from_b1:
Removing instruction b2_from_b2:
Removing instruction b1_from_b3:
Removing instruction b2_from_b1:
Removing instruction b2_from_b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction scrollup1_from_main:
Removing instruction b1:
Removing instruction b2:
Removing instruction breturn:
Removing instruction b1_from_scrollup3:
Removing instruction b2_from_b1:
Removing instruction b3:
Removing instruction breturn:
Removing instruction b1_from_scrollup2:
Removing instruction b3:
Removing instruction breturn:
Removing instruction b1_from_scrollup1:
Removing instruction b3:
Removing instruction breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b1
Removing instruction jmp b2
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @4
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@return
(byte*) screen
(const byte*) screen#0 screen = ((byte*))(word/signed word/dword/signed dword) 1024
(void()) scrollup1()
(word~) scrollup1::$0 $0 zp ZP_WORD:4 101.0
(word~) scrollup1::$2 $2 zp ZP_WORD:7 202.0
(label) scrollup1::@1
(label) scrollup1::@2
(label) scrollup1::@3
(label) scrollup1::@return
(byte) scrollup1::c
(byte) scrollup1::c#1 reg byte x 151.5
(byte) scrollup1::c#2 reg byte x 101.0
(word) scrollup1::line
(word) scrollup1::line#1 line zp ZP_WORD:2 16.5
(word) scrollup1::line#4 line zp ZP_WORD:2 32.0
(void()) scrollup2()
(label) scrollup2::@1
(label) scrollup2::@2
(label) scrollup2::@3
(label) scrollup2::@return
(byte) scrollup2::c
(byte) scrollup2::c#1 reg byte x 151.5
(byte) scrollup2::c#2 reg byte x 50.5
(byte) scrollup2::l
(byte) scrollup2::l#1 l zp ZP_BYTE:6 16.5
(byte) scrollup2::l#4 l zp ZP_BYTE:6 3.142857142857143
(byte*) scrollup2::line1
(byte*) scrollup2::line1#1 line1 zp ZP_WORD:4 35.5
(byte*) scrollup2::line1#2 line1 zp ZP_WORD:4 157.0
(byte*) scrollup2::line1#3 line1 zp ZP_WORD:4 22.0
(byte*) scrollup2::line2
(byte*) scrollup2::line2#1 line2 zp ZP_WORD:2 42.599999999999994
(byte*) scrollup2::line2#2 line2 zp ZP_WORD:2 104.66666666666666
(byte*) scrollup2::line2#3 line2 zp ZP_WORD:2 22.0
(void()) scrollup3()
(label) scrollup3::@1
(label) scrollup3::@2
(label) scrollup3::@3
(label) scrollup3::@return
(byte) scrollup3::c
(byte) scrollup3::c#1 reg byte x 151.5
(byte) scrollup3::c#2 reg byte x 67.33333333333333
(word) scrollup3::l2
(word) scrollup3::l2#0 l2 zp ZP_WORD:2 4.714285714285714
(word) scrollup3::l2#1 l2#1 zp ZP_WORD:4 67.33333333333333
(word) scrollup3::l2#2 l2#2 zp ZP_WORD:4 207.5
(word~) scrollup3::l2#4 l2#4 zp ZP_WORD:4 22.0
(word) scrollup3::line
(word) scrollup3::line#1 line zp ZP_WORD:2 16.5

zp ZP_WORD:2 [ scrollup3::l2#0 scrollup3::line#1 scrollup2::line2#2 scrollup2::line2#3 scrollup2::line2#1 scrollup1::line#4 scrollup1::line#1 ]
zp ZP_WORD:4 [ scrollup3::l2#2 scrollup3::l2#4 scrollup3::l2#1 scrollup2::line1#2 scrollup2::line1#3 scrollup2::line1#1 scrollup1::$0 ]
reg byte x [ scrollup3::c#2 scrollup3::c#1 ]
zp ZP_BYTE:6 [ scrollup2::l#4 scrollup2::l#1 ]
reg byte x [ scrollup2::c#2 scrollup2::c#1 ]
reg byte x [ scrollup1::c#2 scrollup1::c#1 ]
zp ZP_WORD:7 [ scrollup1::$2 ]


FINAL ASSEMBLER
Score: 22197

//SEG0 File Comments
// Tests different ways of scrolling up the screen
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
  .label screen = $400
//SEG3 @begin
//SEG4 [1] phi from @begin to @4 [phi:@begin->@4]
//SEG5 @4
//SEG6 [2] call main 
//SEG7 [4] phi from @4 to main [phi:@4->main]
//SEG8 [3] phi from @4 to @end [phi:@4->@end]
//SEG9 @end
//SEG10 main
main: {
  //SEG11 [5] call scrollup1 
  //SEG12 [33] phi from main to scrollup1 [phi:main->scrollup1]
    jsr scrollup1
  //SEG13 [6] phi from main to main::@1 [phi:main->main::@1]
  //SEG14 main::@1
  //SEG15 [7] call scrollup2 
  //SEG16 [22] phi from main::@1 to scrollup2 [phi:main::@1->scrollup2]
    jsr scrollup2
  //SEG17 [8] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  //SEG18 main::@2
  //SEG19 [9] call scrollup3 
  //SEG20 [11] phi from main::@2 to scrollup3 [phi:main::@2->scrollup3]
    jsr scrollup3
  //SEG21 main::@return
  //SEG22 [10] return 
    rts
}
//SEG23 scrollup3
scrollup3: {
    .label l2 = 2
    .label l2_1 = 4
    .label line = 2
    .label l2_2 = 4
    .label l2_4 = 4
  //SEG24 [12] phi from scrollup3 to scrollup3::@1 [phi:scrollup3->scrollup3::@1]
  //SEG25 [12] phi (word) scrollup3::l2#0 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3->scrollup3::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta l2
    sta l2+1
  //SEG26 [12] phi from scrollup3::@3 to scrollup3::@1 [phi:scrollup3::@3->scrollup3::@1]
  //SEG27 [12] phi (word) scrollup3::l2#0 = (word) scrollup3::line#1 [phi:scrollup3::@3->scrollup3::@1#0] -- register_copy 
  //SEG28 scrollup3::@1
  b1:
  //SEG29 [13] (word~) scrollup3::l2#4 ← (word) scrollup3::l2#0 -- vwuz1=vwuz2 
    lda l2
    sta l2_4
    lda l2+1
    sta l2_4+1
  //SEG30 [14] phi from scrollup3::@1 to scrollup3::@2 [phi:scrollup3::@1->scrollup3::@2]
  //SEG31 [14] phi (byte) scrollup3::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup3::@1->scrollup3::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG32 [14] phi (word) scrollup3::l2#2 = (word~) scrollup3::l2#4 [phi:scrollup3::@1->scrollup3::@2#1] -- register_copy 
  //SEG33 [14] phi from scrollup3::@2 to scrollup3::@2 [phi:scrollup3::@2->scrollup3::@2]
  //SEG34 [14] phi (byte) scrollup3::c#2 = (byte) scrollup3::c#1 [phi:scrollup3::@2->scrollup3::@2#0] -- register_copy 
  //SEG35 [14] phi (word) scrollup3::l2#2 = (word) scrollup3::l2#1 [phi:scrollup3::@2->scrollup3::@2#1] -- register_copy 
  //SEG36 scrollup3::@2
  b2:
  //SEG37 [15] *((const byte*) screen#0 + (word) scrollup3::l2#2) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word) scrollup3::l2#2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz1 
    lda #<screen
    clc
    adc l2_2
    sta !a1++1
    lda #>screen
    adc l2_2+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc l2_2
    sta !a2++1
    lda #>screen+$28
    adc l2_2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG38 [16] (word) scrollup3::l2#1 ← ++ (word) scrollup3::l2#2 -- vwuz1=_inc_vwuz1 
    inc l2_1
    bne !+
    inc l2_1+1
  !:
  //SEG39 [17] (byte) scrollup3::c#1 ← ++ (byte) scrollup3::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG40 [18] if((byte) scrollup3::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup3::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2
  //SEG41 scrollup3::@3
  //SEG42 [19] (word) scrollup3::line#1 ← (word) scrollup3::l2#0 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG43 [20] if((word) scrollup3::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup3::@1 -- vwuz1_lt_vwuc1_then_la1 
    cmp #>$28*$18
    bcc b1
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1
  !:
  //SEG44 scrollup3::@return
  //SEG45 [21] return 
    rts
}
//SEG46 scrollup2
scrollup2: {
    .label line1 = 4
    .label line2 = 2
    .label l = 6
  //SEG47 [23] phi from scrollup2 to scrollup2::@1 [phi:scrollup2->scrollup2::@1]
  //SEG48 [23] phi (byte) scrollup2::l#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2->scrollup2::@1#0] -- vbuz1=vbuc1 
    lda #0
    sta l
  //SEG49 [23] phi (byte*) scrollup2::line1#3 = (const byte*) screen#0 [phi:scrollup2->scrollup2::@1#1] -- pbuz1=pbuc1 
    lda #<screen
    sta line1
    lda #>screen
    sta line1+1
  //SEG50 [23] phi (byte*) scrollup2::line2#3 = (const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 [phi:scrollup2->scrollup2::@1#2] -- pbuz1=pbuc1 
    lda #<screen+$28
    sta line2
    lda #>screen+$28
    sta line2+1
  //SEG51 [23] phi from scrollup2::@3 to scrollup2::@1 [phi:scrollup2::@3->scrollup2::@1]
  //SEG52 [23] phi (byte) scrollup2::l#4 = (byte) scrollup2::l#1 [phi:scrollup2::@3->scrollup2::@1#0] -- register_copy 
  //SEG53 [23] phi (byte*) scrollup2::line1#3 = (byte*) scrollup2::line1#1 [phi:scrollup2::@3->scrollup2::@1#1] -- register_copy 
  //SEG54 [23] phi (byte*) scrollup2::line2#3 = (byte*) scrollup2::line2#1 [phi:scrollup2::@3->scrollup2::@1#2] -- register_copy 
  //SEG55 scrollup2::@1
  b1:
  //SEG56 [24] phi from scrollup2::@1 to scrollup2::@2 [phi:scrollup2::@1->scrollup2::@2]
  //SEG57 [24] phi (byte) scrollup2::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup2::@1->scrollup2::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG58 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#3 [phi:scrollup2::@1->scrollup2::@2#1] -- register_copy 
  //SEG59 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#3 [phi:scrollup2::@1->scrollup2::@2#2] -- register_copy 
  //SEG60 [24] phi from scrollup2::@2 to scrollup2::@2 [phi:scrollup2::@2->scrollup2::@2]
  //SEG61 [24] phi (byte) scrollup2::c#2 = (byte) scrollup2::c#1 [phi:scrollup2::@2->scrollup2::@2#0] -- register_copy 
  //SEG62 [24] phi (byte*) scrollup2::line1#2 = (byte*) scrollup2::line1#1 [phi:scrollup2::@2->scrollup2::@2#1] -- register_copy 
  //SEG63 [24] phi (byte*) scrollup2::line2#2 = (byte*) scrollup2::line2#1 [phi:scrollup2::@2->scrollup2::@2#2] -- register_copy 
  //SEG64 scrollup2::@2
  b2:
  //SEG65 [25] *((byte*) scrollup2::line1#2) ← *((byte*) scrollup2::line2#2) -- _deref_pbuz1=_deref_pbuz2 
    ldy #0
    lda (line2),y
    sta (line1),y
  //SEG66 [26] (byte*) scrollup2::line1#1 ← ++ (byte*) scrollup2::line1#2 -- pbuz1=_inc_pbuz1 
    inc line1
    bne !+
    inc line1+1
  !:
  //SEG67 [27] (byte*) scrollup2::line2#1 ← ++ (byte*) scrollup2::line2#2 -- pbuz1=_inc_pbuz1 
    inc line2
    bne !+
    inc line2+1
  !:
  //SEG68 [28] (byte) scrollup2::c#1 ← ++ (byte) scrollup2::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG69 [29] if((byte) scrollup2::c#1!=(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup2::@2 -- vbuxx_neq_vbuc1_then_la1 
    cpx #$28
    bne b2
  //SEG70 scrollup2::@3
  //SEG71 [30] (byte) scrollup2::l#1 ← ++ (byte) scrollup2::l#4 -- vbuz1=_inc_vbuz1 
    inc l
  //SEG72 [31] if((byte) scrollup2::l#1!=(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup2::@1 -- vbuz1_neq_vbuc1_then_la1 
    lda l
    cmp #$18
    bne b1
  //SEG73 scrollup2::@return
  //SEG74 [32] return 
    rts
}
//SEG75 scrollup1
scrollup1: {
    .label _0 = 4
    .label _2 = 7
    .label line = 2
  //SEG76 [34] phi from scrollup1 to scrollup1::@1 [phi:scrollup1->scrollup1::@1]
  //SEG77 [34] phi (word) scrollup1::line#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1->scrollup1::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    sta line+1
  //SEG78 [34] phi from scrollup1::@3 to scrollup1::@1 [phi:scrollup1::@3->scrollup1::@1]
  //SEG79 [34] phi (word) scrollup1::line#4 = (word) scrollup1::line#1 [phi:scrollup1::@3->scrollup1::@1#0] -- register_copy 
  //SEG80 scrollup1::@1
  b1:
  //SEG81 [35] phi from scrollup1::@1 to scrollup1::@2 [phi:scrollup1::@1->scrollup1::@2]
  //SEG82 [35] phi (byte) scrollup1::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:scrollup1::@1->scrollup1::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG83 [35] phi from scrollup1::@2 to scrollup1::@2 [phi:scrollup1::@2->scrollup1::@2]
  //SEG84 [35] phi (byte) scrollup1::c#2 = (byte) scrollup1::c#1 [phi:scrollup1::@2->scrollup1::@2#0] -- register_copy 
  //SEG85 scrollup1::@2
  b2:
  //SEG86 [36] (word~) scrollup1::$0 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG87 [37] (word~) scrollup1::$2 ← (word) scrollup1::line#4 + (byte) scrollup1::c#2 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG88 [38] *((const byte*) screen#0 + (word~) scrollup1::$0) ← *((const byte*) screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) scrollup1::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG89 [39] (byte) scrollup1::c#1 ← ++ (byte) scrollup1::c#2 -- vbuxx=_inc_vbuxx 
    inx
  //SEG90 [40] if((byte) scrollup1::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto scrollup1::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2
  //SEG91 scrollup1::@3
  //SEG92 [41] (word) scrollup1::line#1 ← (word) scrollup1::line#4 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG93 [42] if((word) scrollup1::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto scrollup1::@1 -- vwuz1_lt_vwuc1_then_la1 
    cmp #>$28*$18
    bcc b1
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1
  !:
  //SEG94 scrollup1::@return
  //SEG95 [43] return 
    rts
}

