Setting inferred volatile on symbol affected by address-of (void~) main::$0 ← call setByte &(byte) main::b1 (byte) 'c' 
Setting inferred volatile on symbol affected by address-of (void~) main::$1 ← call setByte &(byte) main::b2 (byte) 'm' 
Setting inferred volatile on symbol affected by address-of (void~) main::$2 ← call setByte &(byte) main::b3 (byte) 'l' 
Identified constant variable (byte*) main::SCREEN
Culled Empty Block (label) @1

CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@2

(void()) main()
main: scope:[main]  from @2
  (byte) main::b1 ← (byte) 0
  (byte) main::b2 ← (byte) 0
  (byte) main::b3 ← (byte) 0
  (byte*) setByte::ptr#0 ← &(byte) main::b1
  (byte) setByte::b#0 ← (byte) 'c'
  call setByte 
  to:main::@1
main::@1: scope:[main]  from main
  (byte*) setByte::ptr#1 ← &(byte) main::b2
  (byte) setByte::b#1 ← (byte) 'm'
  call setByte 
  to:main::@2
main::@2: scope:[main]  from main::@1
  (byte*) setByte::ptr#2 ← &(byte) main::b3
  (byte) setByte::b#2 ← (byte) 'l'
  call setByte 
  to:main::@3
main::@3: scope:[main]  from main::@2
  *((const byte*) main::SCREEN + (number) 0) ← (byte) main::b1
  *((const byte*) main::SCREEN + (number) 1) ← (byte) main::b2
  *((const byte*) main::SCREEN + (number) 2) ← (byte) main::b3
  to:main::@return
main::@return: scope:[main]  from main::@3
  return 
  to:@return

(void()) setByte((byte*) setByte::ptr , (byte) setByte::b)
setByte: scope:[setByte]  from main main::@1 main::@2
  (byte*) setByte::ptr#3 ← phi( main/(byte*) setByte::ptr#0 main::@1/(byte*) setByte::ptr#1 main::@2/(byte*) setByte::ptr#2 )
  (byte) setByte::b#3 ← phi( main/(byte) setByte::b#0 main::@1/(byte) setByte::b#1 main::@2/(byte) setByte::b#2 )
  *((byte*) setByte::ptr#3) ← (byte) setByte::b#3
  to:setByte::@return
setByte::@return: scope:[setByte]  from setByte
  return 
  to:@return
@2: scope:[]  from @begin
  call main 
  to:@3
@3: scope:[]  from @2
  to:@end
@end: scope:[]  from @3

SYMBOL TABLE SSA
(label) @2
(label) @3
(label) @begin
(label) @end
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@return
(const byte*) main::SCREEN = (byte*)(number) $400
(byte) main::b1 loadstore
(byte) main::b2 loadstore
(byte) main::b3 loadstore
(void()) setByte((byte*) setByte::ptr , (byte) setByte::b)
(label) setByte::@return
(byte) setByte::b
(byte) setByte::b#0
(byte) setByte::b#1
(byte) setByte::b#2
(byte) setByte::b#3
(byte*) setByte::ptr
(byte*) setByte::ptr#0
(byte*) setByte::ptr#1
(byte*) setByte::ptr#2
(byte*) setByte::ptr#3

Adding number conversion cast (unumber) 0 in *((const byte*) main::SCREEN + (number) 0) ← (byte) main::b1
Adding number conversion cast (unumber) 1 in *((const byte*) main::SCREEN + (number) 1) ← (byte) main::b2
Adding number conversion cast (unumber) 2 in *((const byte*) main::SCREEN + (number) 2) ← (byte) main::b3
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant pointer cast (byte*) 1024
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Simplifying constant integer cast 2
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 0
Finalized unsigned number type (byte) 1
Finalized unsigned number type (byte) 2
Successful SSA optimization PassNFinalizeNumberTypeConversions
Constant (const byte*) setByte::ptr#0 = &main::b1
Constant (const byte) setByte::b#0 = 'c'
Constant (const byte*) setByte::ptr#1 = &main::b2
Constant (const byte) setByte::b#1 = 'm'
Constant (const byte*) setByte::ptr#2 = &main::b3
Constant (const byte) setByte::b#2 = 'l'
Successful SSA optimization Pass2ConstantIdentification
Simplifying expression containing zero main::SCREEN in [12] *((const byte*) main::SCREEN + (byte) 0) ← (byte) main::b1
Successful SSA optimization PassNSimplifyExpressionWithZero
Inlining constant with var siblings (const byte*) setByte::ptr#0
Inlining constant with var siblings (const byte) setByte::b#0
Inlining constant with var siblings (const byte*) setByte::ptr#1
Inlining constant with var siblings (const byte) setByte::b#1
Inlining constant with var siblings (const byte*) setByte::ptr#2
Inlining constant with var siblings (const byte) setByte::b#2
Constant inlined setByte::ptr#1 = &(byte) main::b2
Constant inlined setByte::ptr#2 = &(byte) main::b3
Constant inlined setByte::ptr#0 = &(byte) main::b1
Constant inlined setByte::b#2 = (byte) 'l'
Constant inlined setByte::b#1 = (byte) 'm'
Constant inlined setByte::b#0 = (byte) 'c'
Successful SSA optimization Pass2ConstantInlining
Consolidated array index constant in *(main::SCREEN+1)
Consolidated array index constant in *(main::SCREEN+2)
Successful SSA optimization Pass2ConstantAdditionElimination
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @2
Adding NOP phi() at start of @3
Adding NOP phi() at start of @end
Adding NOP phi() at start of main::@1
Adding NOP phi() at start of main::@2
CALL GRAPH
Calls in [] to main:2 
Calls in [main] to setByte:8 setByte:10 setByte:12 

Created 2 initial phi equivalence classes
Coalesced down to 2 phi equivalence classes
Culled Empty Block (label) @3
Renumbering block @2 to @1
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::@1
Adding NOP phi() at start of main::@2

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] (byte) main::b1 ← (byte) 0
  [5] (byte) main::b2 ← (byte) 0
  [6] (byte) main::b3 ← (byte) 0
  [7] call setByte 
  to:main::@1
main::@1: scope:[main]  from main
  [8] phi()
  [9] call setByte 
  to:main::@2
main::@2: scope:[main]  from main::@1
  [10] phi()
  [11] call setByte 
  to:main::@3
main::@3: scope:[main]  from main::@2
  [12] *((const byte*) main::SCREEN) ← (byte) main::b1
  [13] *((const byte*) main::SCREEN+(byte) 1) ← (byte) main::b2
  [14] *((const byte*) main::SCREEN+(byte) 2) ← (byte) main::b3
  to:main::@return
main::@return: scope:[main]  from main::@3
  [15] return 
  to:@return

(void()) setByte((byte*) setByte::ptr , (byte) setByte::b)
setByte: scope:[setByte]  from main main::@1 main::@2
  [16] (byte*) setByte::ptr#3 ← phi( main/&(byte) main::b1 main::@1/&(byte) main::b2 main::@2/&(byte) main::b3 )
  [16] (byte) setByte::b#3 ← phi( main/(byte) 'c' main::@1/(byte) 'm' main::@2/(byte) 'l' )
  [17] *((byte*) setByte::ptr#3) ← (byte) setByte::b#3
  to:setByte::@return
setByte::@return: scope:[setByte]  from setByte
  [18] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(byte) main::b1 loadstore 0.36363636363636365
(byte) main::b2 loadstore 0.36363636363636365
(byte) main::b3 loadstore 0.36363636363636365
(void()) setByte((byte*) setByte::ptr , (byte) setByte::b)
(byte) setByte::b
(byte) setByte::b#3 2.0
(byte*) setByte::ptr
(byte*) setByte::ptr#3 2.0

Initial phi equivalence classes
[ setByte::b#3 ]
[ setByte::ptr#3 ]
Added variable main::b1 to live range equivalence class [ main::b1 ]
Added variable main::b2 to live range equivalence class [ main::b2 ]
Added variable main::b3 to live range equivalence class [ main::b3 ]
Complete equivalence classes
[ setByte::b#3 ]
[ setByte::ptr#3 ]
[ main::b1 ]
[ main::b2 ]
[ main::b3 ]
Allocated zp[1]:2 [ setByte::b#3 ]
Allocated zp[2]:3 [ setByte::ptr#3 ]
Allocated zp[1]:5 [ main::b1 ]
Allocated zp[1]:6 [ main::b2 ]
Allocated zp[1]:7 [ main::b3 ]

INITIAL ASM
Target platform is c64basic / MOS6502X
  // File Comments
// Test address-of - pass the pointer as parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    .label SCREEN = $400
    .label b1 = 5
    .label b2 = 6
    .label b3 = 7
    // [4] (byte) main::b1 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b1
    // [5] (byte) main::b2 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b2
    // [6] (byte) main::b3 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b3
    // [7] call setByte 
    // [16] phi from main to setByte [phi:main->setByte]
  setByte_from_main:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b1 [phi:main->setByte#0] -- pbuz1=pbuc1 
    lda #<b1
    sta.z setByte.ptr
    lda #>b1
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'c' [phi:main->setByte#1] -- vbuz1=vbuc1 
    lda #'c'
    sta.z setByte.b
    jsr setByte
    // [8] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    jmp __b1
    // main::@1
  __b1:
    // [9] call setByte 
    // [16] phi from main::@1 to setByte [phi:main::@1->setByte]
  setByte_from___b1:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b2 [phi:main::@1->setByte#0] -- pbuz1=pbuc1 
    lda #<b2
    sta.z setByte.ptr
    lda #>b2
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'm' [phi:main::@1->setByte#1] -- vbuz1=vbuc1 
    lda #'m'
    sta.z setByte.b
    jsr setByte
    // [10] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  __b2_from___b1:
    jmp __b2
    // main::@2
  __b2:
    // [11] call setByte 
    // [16] phi from main::@2 to setByte [phi:main::@2->setByte]
  setByte_from___b2:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b3 [phi:main::@2->setByte#0] -- pbuz1=pbuc1 
    lda #<b3
    sta.z setByte.ptr
    lda #>b3
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'l' [phi:main::@2->setByte#1] -- vbuz1=vbuc1 
    lda #'l'
    sta.z setByte.b
    jsr setByte
    jmp __b3
    // main::@3
  __b3:
    // [12] *((const byte*) main::SCREEN) ← (byte) main::b1 -- _deref_pbuc1=vbuz1 
    lda.z b1
    sta SCREEN
    // [13] *((const byte*) main::SCREEN+(byte) 1) ← (byte) main::b2 -- _deref_pbuc1=vbuz1 
    lda.z b2
    sta SCREEN+1
    // [14] *((const byte*) main::SCREEN+(byte) 2) ← (byte) main::b3 -- _deref_pbuc1=vbuz1 
    lda.z b3
    sta SCREEN+2
    jmp __breturn
    // main::@return
  __breturn:
    // [15] return 
    rts
}
  // setByte
// setByte(byte* zp(3) ptr, byte zp(2) b)
setByte: {
    .label b = 2
    .label ptr = 3
    // [17] *((byte*) setByte::ptr#3) ← (byte) setByte::b#3 -- _deref_pbuz1=vbuz2 
    lda.z b
    ldy #0
    sta (ptr),y
    jmp __breturn
    // setByte::@return
  __breturn:
    // [18] return 
    rts
}
  // File Data

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [4] (byte) main::b1 ← (byte) 0 [ main::b1 ] ( main:2 [ main::b1 ] ) always clobbers reg byte a 
Statement [5] (byte) main::b2 ← (byte) 0 [ main::b1 main::b2 ] ( main:2 [ main::b1 main::b2 ] ) always clobbers reg byte a 
Statement [6] (byte) main::b3 ← (byte) 0 [ main::b1 main::b2 main::b3 ] ( main:2 [ main::b1 main::b2 main::b3 ] ) always clobbers reg byte a 
Statement [12] *((const byte*) main::SCREEN) ← (byte) main::b1 [ main::b2 main::b3 ] ( main:2 [ main::b2 main::b3 ] ) always clobbers reg byte a 
Statement [13] *((const byte*) main::SCREEN+(byte) 1) ← (byte) main::b2 [ main::b3 ] ( main:2 [ main::b3 ] ) always clobbers reg byte a 
Statement [14] *((const byte*) main::SCREEN+(byte) 2) ← (byte) main::b3 [ ] ( main:2 [ ] ) always clobbers reg byte a 
Statement [17] *((byte*) setByte::ptr#3) ← (byte) setByte::b#3 [ main::b1 main::b2 main::b3 ] ( main:2::setByte:7 [ main::b1 main::b2 main::b3 ] main:2::setByte:9 [ main::b1 main::b2 main::b3 ] main:2::setByte:11 [ main::b1 main::b2 main::b3 ] ) always clobbers reg byte y 
Potential registers zp[1]:2 [ setByte::b#3 ] : zp[1]:2 , reg byte a , reg byte x , reg byte y , 
Potential registers zp[2]:3 [ setByte::ptr#3 ] : zp[2]:3 , 
Potential registers zp[1]:5 [ main::b1 ] : zp[1]:5 , 
Potential registers zp[1]:6 [ main::b2 ] : zp[1]:6 , 
Potential registers zp[1]:7 [ main::b3 ] : zp[1]:7 , 

REGISTER UPLIFT SCOPES
Uplift Scope [setByte] 2: zp[1]:2 [ setByte::b#3 ] 2: zp[2]:3 [ setByte::ptr#3 ] 
Uplift Scope [main] 0.36: zp[1]:5 [ main::b1 ] 0.36: zp[1]:6 [ main::b2 ] 0.36: zp[1]:7 [ main::b3 ] 
Uplift Scope [] 

Uplifting [setByte] best 139 combination reg byte x [ setByte::b#3 ] zp[2]:3 [ setByte::ptr#3 ] 
Uplifting [main] best 139 combination zp[1]:5 [ main::b1 ] zp[1]:6 [ main::b2 ] zp[1]:7 [ main::b3 ] 
Uplifting [] best 139 combination 
Attempting to uplift remaining variables inzp[1]:5 [ main::b1 ]
Uplifting [main] best 139 combination zp[1]:5 [ main::b1 ] 
Attempting to uplift remaining variables inzp[1]:6 [ main::b2 ]
Uplifting [main] best 139 combination zp[1]:6 [ main::b2 ] 
Attempting to uplift remaining variables inzp[1]:7 [ main::b3 ]
Uplifting [main] best 139 combination zp[1]:7 [ main::b3 ] 
Allocated (was zp[2]:3) zp[2]:2 [ setByte::ptr#3 ]
Allocated (was zp[1]:5) zp[1]:4 [ main::b1 ]
Allocated (was zp[1]:6) zp[1]:5 [ main::b2 ]
Allocated (was zp[1]:7) zp[1]:6 [ main::b3 ]

ASSEMBLER BEFORE OPTIMIZATION
  // File Comments
// Test address-of - pass the pointer as parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(__bbegin)
.pc = $80d "Program"
  // Global Constants & labels
  // @begin
__bbegin:
  // [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
  jmp __b1
  // @1
__b1:
  // [2] call main 
  jsr main
  // [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
  jmp __bend
  // @end
__bend:
  // main
main: {
    .label SCREEN = $400
    .label b1 = 4
    .label b2 = 5
    .label b3 = 6
    // [4] (byte) main::b1 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b1
    // [5] (byte) main::b2 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b2
    // [6] (byte) main::b3 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b3
    // [7] call setByte 
    // [16] phi from main to setByte [phi:main->setByte]
  setByte_from_main:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b1 [phi:main->setByte#0] -- pbuz1=pbuc1 
    lda #<b1
    sta.z setByte.ptr
    lda #>b1
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'c' [phi:main->setByte#1] -- vbuxx=vbuc1 
    ldx #'c'
    jsr setByte
    // [8] phi from main to main::@1 [phi:main->main::@1]
  __b1_from_main:
    jmp __b1
    // main::@1
  __b1:
    // [9] call setByte 
    // [16] phi from main::@1 to setByte [phi:main::@1->setByte]
  setByte_from___b1:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b2 [phi:main::@1->setByte#0] -- pbuz1=pbuc1 
    lda #<b2
    sta.z setByte.ptr
    lda #>b2
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'm' [phi:main::@1->setByte#1] -- vbuxx=vbuc1 
    ldx #'m'
    jsr setByte
    // [10] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  __b2_from___b1:
    jmp __b2
    // main::@2
  __b2:
    // [11] call setByte 
    // [16] phi from main::@2 to setByte [phi:main::@2->setByte]
  setByte_from___b2:
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b3 [phi:main::@2->setByte#0] -- pbuz1=pbuc1 
    lda #<b3
    sta.z setByte.ptr
    lda #>b3
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'l' [phi:main::@2->setByte#1] -- vbuxx=vbuc1 
    ldx #'l'
    jsr setByte
    jmp __b3
    // main::@3
  __b3:
    // [12] *((const byte*) main::SCREEN) ← (byte) main::b1 -- _deref_pbuc1=vbuz1 
    lda.z b1
    sta SCREEN
    // [13] *((const byte*) main::SCREEN+(byte) 1) ← (byte) main::b2 -- _deref_pbuc1=vbuz1 
    lda.z b2
    sta SCREEN+1
    // [14] *((const byte*) main::SCREEN+(byte) 2) ← (byte) main::b3 -- _deref_pbuc1=vbuz1 
    lda.z b3
    sta SCREEN+2
    jmp __breturn
    // main::@return
  __breturn:
    // [15] return 
    rts
}
  // setByte
// setByte(byte* zp(2) ptr, byte register(X) b)
setByte: {
    .label ptr = 2
    // [17] *((byte*) setByte::ptr#3) ← (byte) setByte::b#3 -- _deref_pbuz1=vbuxx 
    txa
    ldy #0
    sta (ptr),y
    jmp __breturn
    // setByte::@return
  __breturn:
    // [18] return 
    rts
}
  // File Data

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp __b1
Removing instruction jmp __b2
Removing instruction jmp __b3
Removing instruction jmp __breturn
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction lda #0
Removing instruction lda #0
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Replacing label __bbegin with __b1
Removing instruction __bbegin:
Removing instruction __b1_from___bbegin:
Removing instruction __bend_from___b1:
Removing instruction __b1_from_main:
Removing instruction setByte_from___b1:
Removing instruction __b2_from___b1:
Removing instruction setByte_from___b2:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bend:
Removing instruction setByte_from_main:
Removing instruction __b1:
Removing instruction __b2:
Removing instruction __b3:
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
(void()) main()
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@return
(const byte*) main::SCREEN = (byte*) 1024
(byte) main::b1 loadstore zp[1]:4 0.36363636363636365
(byte) main::b2 loadstore zp[1]:5 0.36363636363636365
(byte) main::b3 loadstore zp[1]:6 0.36363636363636365
(void()) setByte((byte*) setByte::ptr , (byte) setByte::b)
(label) setByte::@return
(byte) setByte::b
(byte) setByte::b#3 reg byte x 2.0
(byte*) setByte::ptr
(byte*) setByte::ptr#3 ptr zp[2]:2 2.0

reg byte x [ setByte::b#3 ]
zp[2]:2 [ setByte::ptr#3 ]
zp[1]:4 [ main::b1 ]
zp[1]:5 [ main::b2 ]
zp[1]:6 [ main::b3 ]


FINAL ASSEMBLER
Score: 108

  // File Comments
// Test address-of - pass the pointer as parameter
  // Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
  // Global Constants & labels
  // @begin
  // [1] phi from @begin to @1 [phi:@begin->@1]
  // @1
  // [2] call main 
  // [3] phi from @1 to @end [phi:@1->@end]
  // @end
  // main
main: {
    .label SCREEN = $400
    .label b1 = 4
    .label b2 = 5
    .label b3 = 6
    // b1 = 0
    // [4] (byte) main::b1 ← (byte) 0 -- vbuz1=vbuc1 
    lda #0
    sta.z b1
    // b2 = 0
    // [5] (byte) main::b2 ← (byte) 0 -- vbuz1=vbuc1 
    sta.z b2
    // b3 = 0
    // [6] (byte) main::b3 ← (byte) 0 -- vbuz1=vbuc1 
    sta.z b3
    // setByte(&b1, 'c')
    // [7] call setByte 
    // [16] phi from main to setByte [phi:main->setByte]
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b1 [phi:main->setByte#0] -- pbuz1=pbuc1 
    lda #<b1
    sta.z setByte.ptr
    lda #>b1
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'c' [phi:main->setByte#1] -- vbuxx=vbuc1 
    ldx #'c'
    jsr setByte
    // [8] phi from main to main::@1 [phi:main->main::@1]
    // main::@1
    // setByte(&b2, 'm')
    // [9] call setByte 
    // [16] phi from main::@1 to setByte [phi:main::@1->setByte]
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b2 [phi:main::@1->setByte#0] -- pbuz1=pbuc1 
    lda #<b2
    sta.z setByte.ptr
    lda #>b2
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'm' [phi:main::@1->setByte#1] -- vbuxx=vbuc1 
    ldx #'m'
    jsr setByte
    // [10] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
    // main::@2
    // setByte(&b3, 'l')
    // [11] call setByte 
    // [16] phi from main::@2 to setByte [phi:main::@2->setByte]
    // [16] phi (byte*) setByte::ptr#3 = &(byte) main::b3 [phi:main::@2->setByte#0] -- pbuz1=pbuc1 
    lda #<b3
    sta.z setByte.ptr
    lda #>b3
    sta.z setByte.ptr+1
    // [16] phi (byte) setByte::b#3 = (byte) 'l' [phi:main::@2->setByte#1] -- vbuxx=vbuc1 
    ldx #'l'
    jsr setByte
    // main::@3
    // SCREEN[0] = b1
    // [12] *((const byte*) main::SCREEN) ← (byte) main::b1 -- _deref_pbuc1=vbuz1 
    lda.z b1
    sta SCREEN
    // SCREEN[1] = b2
    // [13] *((const byte*) main::SCREEN+(byte) 1) ← (byte) main::b2 -- _deref_pbuc1=vbuz1 
    lda.z b2
    sta SCREEN+1
    // SCREEN[2] = b3
    // [14] *((const byte*) main::SCREEN+(byte) 2) ← (byte) main::b3 -- _deref_pbuc1=vbuz1 
    lda.z b3
    sta SCREEN+2
    // main::@return
    // }
    // [15] return 
    rts
}
  // setByte
// setByte(byte* zp(2) ptr, byte register(X) b)
setByte: {
    .label ptr = 2
    // *ptr = b
    // [17] *((byte*) setByte::ptr#3) ← (byte) setByte::b#3 -- _deref_pbuz1=vbuxx 
    txa
    ldy #0
    sta (ptr),y
    // setByte::@return
    // }
    // [18] return 
    rts
}
  // File Data

