2019-06-03 10:19:47 +00:00
|
|
|
Culled Empty Block (label) main::@2
|
|
|
|
|
|
|
|
CONTROL FLOW GRAPH SSA
|
|
|
|
@begin: scope:[] from
|
|
|
|
to:@1
|
|
|
|
main: scope:[main] from @1
|
|
|
|
(byte*) main::screen#0 ← ((byte*)) (number) $400
|
|
|
|
(byte) main::i#0 ← (byte) 0
|
|
|
|
to:main::@1
|
|
|
|
main::@1: scope:[main] from main main::@1
|
|
|
|
(byte*) main::screen#3 ← phi( main/(byte*) main::screen#0 main::@1/(byte*) main::screen#2 )
|
|
|
|
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
|
|
|
|
(number~) main::$0 ← (byte) main::i#2 * (number) 2
|
|
|
|
(number~) main::$1 ← (number~) main::$0 + (byte) main::i#2
|
|
|
|
(number~) main::$2 ← (number~) main::$1 + (number) 3
|
|
|
|
*((byte*) main::screen#3) ← (number~) main::$2
|
|
|
|
(byte*) main::screen#1 ← ++ (byte*) main::screen#3
|
|
|
|
(number~) main::$3 ← (byte) main::i#2 * (number) 2
|
|
|
|
(number~) main::$4 ← (number~) main::$3 + (byte) main::i#2
|
|
|
|
(number~) main::$5 ← (number~) main::$4 + (number) 3
|
|
|
|
*((byte*) main::screen#1) ← (number~) main::$5
|
|
|
|
(byte*) main::screen#2 ← ++ (byte*) main::screen#1
|
|
|
|
(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,2)
|
|
|
|
(bool~) main::$6 ← (byte) main::i#1 != rangelast(0,2)
|
|
|
|
if((bool~) main::$6) goto main::@1
|
|
|
|
to:main::@return
|
|
|
|
main::@return: scope:[main] from main::@1
|
|
|
|
return
|
|
|
|
to:@return
|
|
|
|
@1: scope:[] from @begin
|
|
|
|
call main
|
|
|
|
to:@2
|
|
|
|
@2: scope:[] from @1
|
|
|
|
to:@end
|
|
|
|
@end: scope:[] from @2
|
|
|
|
|
|
|
|
SYMBOL TABLE SSA
|
|
|
|
(label) @1
|
|
|
|
(label) @2
|
|
|
|
(label) @begin
|
|
|
|
(label) @end
|
|
|
|
(void()) main()
|
|
|
|
(number~) main::$0
|
|
|
|
(number~) main::$1
|
|
|
|
(number~) main::$2
|
|
|
|
(number~) main::$3
|
|
|
|
(number~) main::$4
|
|
|
|
(number~) main::$5
|
|
|
|
(bool~) main::$6
|
|
|
|
(label) main::@1
|
|
|
|
(label) main::@return
|
|
|
|
(byte) main::i
|
|
|
|
(byte) main::i#0
|
|
|
|
(byte) main::i#1
|
|
|
|
(byte) main::i#2
|
|
|
|
(byte*) main::screen
|
|
|
|
(byte*) main::screen#0
|
|
|
|
(byte*) main::screen#1
|
|
|
|
(byte*) main::screen#2
|
|
|
|
(byte*) main::screen#3
|
|
|
|
|
|
|
|
Adding number conversion cast (unumber) 2 in (number~) main::$0 ← (byte) main::i#2 * (number) 2
|
|
|
|
Adding number conversion cast (unumber) main::$0 in (number~) main::$0 ← (byte) main::i#2 * (unumber)(number) 2
|
|
|
|
Adding number conversion cast (unumber) main::$1 in (number~) main::$1 ← (unumber~) main::$0 + (byte) main::i#2
|
|
|
|
Adding number conversion cast (unumber) 3 in (number~) main::$2 ← (unumber~) main::$1 + (number) 3
|
|
|
|
Adding number conversion cast (unumber) main::$2 in (number~) main::$2 ← (unumber~) main::$1 + (unumber)(number) 3
|
|
|
|
Adding number conversion cast (unumber) 2 in (number~) main::$3 ← (byte) main::i#2 * (number) 2
|
|
|
|
Adding number conversion cast (unumber) main::$3 in (number~) main::$3 ← (byte) main::i#2 * (unumber)(number) 2
|
|
|
|
Adding number conversion cast (unumber) main::$4 in (number~) main::$4 ← (unumber~) main::$3 + (byte) main::i#2
|
|
|
|
Adding number conversion cast (unumber) 3 in (number~) main::$5 ← (unumber~) main::$4 + (number) 3
|
|
|
|
Adding number conversion cast (unumber) main::$5 in (number~) main::$5 ← (unumber~) main::$4 + (unumber)(number) 3
|
|
|
|
Successful SSA optimization PassNAddNumberTypeConversions
|
|
|
|
Inlining cast (byte*) main::screen#0 ← (byte*)(number) $400
|
|
|
|
Successful SSA optimization Pass2InlineCast
|
|
|
|
Simplifying constant pointer cast (byte*) 1024
|
|
|
|
Simplifying constant integer cast 2
|
|
|
|
Simplifying constant integer cast 3
|
|
|
|
Simplifying constant integer cast 2
|
|
|
|
Simplifying constant integer cast 3
|
|
|
|
Successful SSA optimization PassNCastSimplification
|
|
|
|
Finalized unsigned number type (byte) 2
|
|
|
|
Finalized unsigned number type (byte) 3
|
|
|
|
Finalized unsigned number type (byte) 2
|
|
|
|
Finalized unsigned number type (byte) 3
|
|
|
|
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
|
|
|
Inferred type updated to byte in (unumber~) main::$0 ← (byte) main::i#2 * (byte) 2
|
|
|
|
Inferred type updated to byte in (unumber~) main::$1 ← (byte~) main::$0 + (byte) main::i#2
|
|
|
|
Inferred type updated to byte in (unumber~) main::$2 ← (byte~) main::$1 + (byte) 3
|
|
|
|
Inferred type updated to byte in (unumber~) main::$3 ← (byte) main::i#2 * (byte) 2
|
|
|
|
Inferred type updated to byte in (unumber~) main::$4 ← (byte~) main::$3 + (byte) main::i#2
|
|
|
|
Inferred type updated to byte in (unumber~) main::$5 ← (byte~) main::$4 + (byte) 3
|
|
|
|
Identified duplicate assignment right side [8] (byte~) main::$3 ← (byte) main::i#2 * (byte) 2
|
|
|
|
Successful SSA optimization Pass2DuplicateRValueIdentification
|
|
|
|
Simple Condition (bool~) main::$6 [15] if((byte) main::i#1!=rangelast(0,2)) goto main::@1
|
|
|
|
Successful SSA optimization Pass2ConditionalJumpSimplification
|
|
|
|
Constant (const byte*) main::screen#0 = (byte*) 1024
|
|
|
|
Constant (const byte) main::i#0 = 0
|
|
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
|
|
Resolved ranged next value [13] main::i#1 ← ++ main::i#2 to ++
|
|
|
|
Resolved ranged comparison value [15] if(main::i#1!=rangelast(0,2)) goto main::@1 to (number) 3
|
|
|
|
Adding number conversion cast (unumber) 3 in if((byte) main::i#1!=(number) 3) goto main::@1
|
|
|
|
Successful SSA optimization PassNAddNumberTypeConversions
|
|
|
|
Simplifying constant integer cast 3
|
|
|
|
Successful SSA optimization PassNCastSimplification
|
|
|
|
Finalized unsigned number type (byte) 3
|
|
|
|
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
|
|
|
Alias (byte~) main::$3 = (byte~) main::$0
|
|
|
|
Successful SSA optimization Pass2AliasElimination
|
|
|
|
Rewriting multiplication to use shift [1] (byte~) main::$3 ← (byte) main::i#2 * (byte) 2
|
|
|
|
Successful SSA optimization Pass2MultiplyToShiftRewriting
|
|
|
|
Inlining constant with var siblings (const byte*) main::screen#0
|
|
|
|
Inlining constant with var siblings (const byte) main::i#0
|
|
|
|
Constant inlined main::screen#0 = (byte*) 1024
|
|
|
|
Constant inlined main::i#0 = (byte) 0
|
|
|
|
Successful SSA optimization Pass2ConstantInlining
|
|
|
|
Added new block during phi lifting main::@3(between main::@1 and main::@1)
|
|
|
|
Adding NOP phi() at start of @begin
|
|
|
|
Adding NOP phi() at start of @1
|
|
|
|
Adding NOP phi() at start of @2
|
|
|
|
Adding NOP phi() at start of @end
|
|
|
|
Adding NOP phi() at start of main
|
|
|
|
CALL GRAPH
|
|
|
|
Calls in [] to main:2
|
|
|
|
|
|
|
|
Created 2 initial phi equivalence classes
|
|
|
|
Coalesced [19] main::i#3 ← main::i#1
|
|
|
|
Coalesced [20] main::screen#4 ← main::screen#2
|
|
|
|
Coalesced down to 2 phi equivalence classes
|
|
|
|
Culled Empty Block (label) @2
|
|
|
|
Culled Empty Block (label) main::@3
|
|
|
|
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
|
|
|
|
|
|
|
|
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()
|
|
|
|
main: scope:[main] from @1
|
|
|
|
[4] phi()
|
|
|
|
to:main::@1
|
|
|
|
main::@1: scope:[main] from main main::@1
|
|
|
|
[5] (byte*) main::screen#3 ← phi( main/(byte*) 1024 main::@1/(byte*) main::screen#2 )
|
|
|
|
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
|
|
|
|
[6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1
|
|
|
|
[7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2
|
|
|
|
[8] (byte~) main::$2 ← (byte~) main::$1 + (byte) 3
|
|
|
|
[9] *((byte*) main::screen#3) ← (byte~) main::$2
|
|
|
|
[10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3
|
|
|
|
[11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2
|
|
|
|
[12] (byte~) main::$5 ← (byte~) main::$4 + (byte) 3
|
|
|
|
[13] *((byte*) main::screen#1) ← (byte~) main::$5
|
|
|
|
[14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1
|
|
|
|
[15] (byte) main::i#1 ← ++ (byte) main::i#2
|
|
|
|
[16] if((byte) main::i#1!=(byte) 3) goto main::@1
|
|
|
|
to:main::@return
|
|
|
|
main::@return: scope:[main] from main::@1
|
|
|
|
[17] return
|
|
|
|
to:@return
|
|
|
|
|
|
|
|
|
|
|
|
VARIABLE REGISTER WEIGHTS
|
|
|
|
(void()) main()
|
|
|
|
(byte~) main::$1 22.0
|
|
|
|
(byte~) main::$2 22.0
|
|
|
|
(byte~) main::$3 6.6000000000000005
|
|
|
|
(byte~) main::$4 22.0
|
|
|
|
(byte~) main::$5 22.0
|
|
|
|
(byte) main::i
|
|
|
|
(byte) main::i#1 16.5
|
|
|
|
(byte) main::i#2 5.5
|
|
|
|
(byte*) main::screen
|
|
|
|
(byte*) main::screen#1 8.25
|
|
|
|
(byte*) main::screen#2 7.333333333333333
|
|
|
|
(byte*) main::screen#3 6.6000000000000005
|
|
|
|
|
|
|
|
Initial phi equivalence classes
|
|
|
|
[ main::i#2 main::i#1 ]
|
|
|
|
[ main::screen#3 main::screen#2 ]
|
|
|
|
Added variable main::$3 to zero page equivalence class [ main::$3 ]
|
|
|
|
Added variable main::$1 to zero page equivalence class [ main::$1 ]
|
|
|
|
Added variable main::$2 to zero page equivalence class [ main::$2 ]
|
|
|
|
Added variable main::screen#1 to zero page equivalence class [ main::screen#1 ]
|
|
|
|
Added variable main::$4 to zero page equivalence class [ main::$4 ]
|
|
|
|
Added variable main::$5 to zero page equivalence class [ main::$5 ]
|
|
|
|
Complete equivalence classes
|
|
|
|
[ main::i#2 main::i#1 ]
|
|
|
|
[ main::screen#3 main::screen#2 ]
|
|
|
|
[ main::$3 ]
|
|
|
|
[ main::$1 ]
|
|
|
|
[ main::$2 ]
|
|
|
|
[ main::screen#1 ]
|
|
|
|
[ main::$4 ]
|
|
|
|
[ main::$5 ]
|
|
|
|
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
|
|
|
Allocated zp ZP_WORD:3 [ main::screen#3 main::screen#2 ]
|
|
|
|
Allocated zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Allocated zp ZP_BYTE:6 [ main::$1 ]
|
|
|
|
Allocated zp ZP_BYTE:7 [ main::$2 ]
|
|
|
|
Allocated zp ZP_WORD:8 [ main::screen#1 ]
|
|
|
|
Allocated zp ZP_BYTE:10 [ main::$4 ]
|
|
|
|
Allocated zp ZP_BYTE:11 [ main::$5 ]
|
|
|
|
|
|
|
|
INITIAL ASM
|
2019-07-08 14:43:09 +00:00
|
|
|
// File Comments
|
2019-06-03 10:19:47 +00:00
|
|
|
// Tests optimization of identical sub-expressions
|
2019-07-08 14:43:09 +00:00
|
|
|
// Basic Upstart
|
2019-06-03 10:19:47 +00:00
|
|
|
.pc = $801 "Basic"
|
|
|
|
:BasicUpstart(bbegin)
|
|
|
|
.pc = $80d "Program"
|
2019-07-08 14:43:09 +00:00
|
|
|
// Global Constants & labels
|
|
|
|
// @begin
|
2019-06-03 10:19:47 +00:00
|
|
|
bbegin:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_bbegin:
|
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// @1
|
2019-06-03 10:19:47 +00:00
|
|
|
b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [2] call main
|
|
|
|
// [4] phi from @1 to main [phi:@1->main]
|
2019-06-03 10:19:47 +00:00
|
|
|
main_from_b1:
|
|
|
|
jsr main
|
2019-07-08 14:43:09 +00:00
|
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
2019-06-03 10:19:47 +00:00
|
|
|
bend_from_b1:
|
|
|
|
jmp bend
|
2019-07-08 14:43:09 +00:00
|
|
|
// @end
|
2019-06-03 10:19:47 +00:00
|
|
|
bend:
|
2019-07-08 14:43:09 +00:00
|
|
|
// main
|
2019-06-03 10:19:47 +00:00
|
|
|
main: {
|
|
|
|
.label _1 = 6
|
|
|
|
.label _2 = 7
|
|
|
|
.label _3 = 5
|
|
|
|
.label _4 = $a
|
|
|
|
.label _5 = $b
|
|
|
|
.label screen = 8
|
|
|
|
.label screen_2 = 3
|
|
|
|
.label i = 2
|
|
|
|
.label screen_3 = 3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi from main to main::@1 [phi:main->main::@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_main:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte*) main::screen#3 = (byte*) 1024 [phi:main->main::@1#0] -- pbuz1=pbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
lda #<$400
|
|
|
|
sta screen_3
|
|
|
|
lda #>$400
|
|
|
|
sta screen_3+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuz1=vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
lda #0
|
|
|
|
sta i
|
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte*) main::screen#3 = (byte*) main::screen#2 [phi:main::@1->main::@1#0] -- register_copy
|
|
|
|
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#1] -- register_copy
|
2019-06-03 10:19:47 +00:00
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// main::@1
|
2019-06-03 10:19:47 +00:00
|
|
|
b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1
|
2019-06-03 10:19:47 +00:00
|
|
|
lda i
|
|
|
|
asl
|
|
|
|
sta _3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2 -- vbuz1=vbuz2_plus_vbuz3
|
2019-06-03 10:19:47 +00:00
|
|
|
lda _3
|
|
|
|
clc
|
|
|
|
adc i
|
|
|
|
sta _1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [8] (byte~) main::$2 ← (byte~) main::$1 + (byte) 3 -- vbuz1=vbuz2_plus_vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
lax _1
|
|
|
|
axs #-[3]
|
|
|
|
stx _2
|
2019-07-08 14:43:09 +00:00
|
|
|
// [9] *((byte*) main::screen#3) ← (byte~) main::$2 -- _deref_pbuz1=vbuz2
|
2019-06-03 10:19:47 +00:00
|
|
|
lda _2
|
|
|
|
ldy #0
|
|
|
|
sta (screen_3),y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3 -- pbuz1=_inc_pbuz2
|
2019-06-03 10:19:47 +00:00
|
|
|
lda screen_3
|
|
|
|
clc
|
|
|
|
adc #1
|
|
|
|
sta screen
|
|
|
|
lda screen_3+1
|
|
|
|
adc #0
|
|
|
|
sta screen+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2 -- vbuz1=vbuz2_plus_vbuz3
|
2019-06-03 10:19:47 +00:00
|
|
|
lda _3
|
|
|
|
clc
|
|
|
|
adc i
|
|
|
|
sta _4
|
2019-07-08 14:43:09 +00:00
|
|
|
// [12] (byte~) main::$5 ← (byte~) main::$4 + (byte) 3 -- vbuz1=vbuz2_plus_vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
lax _4
|
|
|
|
axs #-[3]
|
|
|
|
stx _5
|
2019-07-08 14:43:09 +00:00
|
|
|
// [13] *((byte*) main::screen#1) ← (byte~) main::$5 -- _deref_pbuz1=vbuz2
|
2019-06-03 10:19:47 +00:00
|
|
|
lda _5
|
|
|
|
ldy #0
|
|
|
|
sta (screen),y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1 -- pbuz1=_inc_pbuz2
|
2019-06-03 10:19:47 +00:00
|
|
|
lda screen
|
|
|
|
clc
|
|
|
|
adc #1
|
|
|
|
sta screen_2
|
|
|
|
lda screen+1
|
|
|
|
adc #0
|
|
|
|
sta screen_2+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
|
2019-06-03 10:19:47 +00:00
|
|
|
inc i
|
2019-07-08 14:43:09 +00:00
|
|
|
// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
|
2019-06-03 10:19:47 +00:00
|
|
|
lda #3
|
|
|
|
cmp i
|
|
|
|
bne b1_from_b1
|
|
|
|
jmp breturn
|
2019-07-08 14:43:09 +00:00
|
|
|
// main::@return
|
2019-06-03 10:19:47 +00:00
|
|
|
breturn:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [17] return
|
2019-06-03 10:19:47 +00:00
|
|
|
rts
|
|
|
|
}
|
2019-07-08 14:43:09 +00:00
|
|
|
// File Data
|
2019-06-03 10:19:47 +00:00
|
|
|
|
|
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
|
|
Statement [6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::screen#3 main::$3 ] ( main:2 [ main::i#2 main::screen#3 main::$3 ] ) always clobbers reg byte a
|
|
|
|
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
|
|
|
Statement [7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2 [ main::i#2 main::screen#3 main::$3 main::$1 ] ( main:2 [ main::i#2 main::screen#3 main::$3 main::$1 ] ) always clobbers reg byte a
|
|
|
|
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Statement [9] *((byte*) main::screen#3) ← (byte~) main::$2 [ main::i#2 main::screen#3 main::$3 ] ( main:2 [ main::i#2 main::screen#3 main::$3 ] ) always clobbers reg byte y
|
|
|
|
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
|
|
|
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Statement [10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3 [ main::i#2 main::$3 main::screen#1 ] ( main:2 [ main::i#2 main::$3 main::screen#1 ] ) always clobbers reg byte a
|
|
|
|
Statement [11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2 [ main::i#2 main::screen#1 main::$4 ] ( main:2 [ main::i#2 main::screen#1 main::$4 ] ) always clobbers reg byte a
|
|
|
|
Statement [13] *((byte*) main::screen#1) ← (byte~) main::$5 [ main::i#2 main::screen#1 ] ( main:2 [ main::i#2 main::screen#1 ] ) always clobbers reg byte y
|
|
|
|
Statement [14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1 [ main::i#2 main::screen#2 ] ( main:2 [ main::i#2 main::screen#2 ] ) always clobbers reg byte a
|
|
|
|
Statement [6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::screen#3 main::$3 ] ( main:2 [ main::i#2 main::screen#3 main::$3 ] ) always clobbers reg byte a
|
|
|
|
Statement [7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2 [ main::i#2 main::screen#3 main::$3 main::$1 ] ( main:2 [ main::i#2 main::screen#3 main::$3 main::$1 ] ) always clobbers reg byte a
|
|
|
|
Statement [9] *((byte*) main::screen#3) ← (byte~) main::$2 [ main::i#2 main::screen#3 main::$3 ] ( main:2 [ main::i#2 main::screen#3 main::$3 ] ) always clobbers reg byte y
|
|
|
|
Statement [10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3 [ main::i#2 main::$3 main::screen#1 ] ( main:2 [ main::i#2 main::$3 main::screen#1 ] ) always clobbers reg byte a
|
|
|
|
Statement [11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2 [ main::i#2 main::screen#1 main::$4 ] ( main:2 [ main::i#2 main::screen#1 main::$4 ] ) always clobbers reg byte a
|
|
|
|
Statement [13] *((byte*) main::screen#1) ← (byte~) main::$5 [ main::i#2 main::screen#1 ] ( main:2 [ main::i#2 main::screen#1 ] ) always clobbers reg byte y
|
|
|
|
Statement [14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1 [ main::i#2 main::screen#2 ] ( main:2 [ main::i#2 main::screen#2 ] ) always clobbers reg byte a
|
|
|
|
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte x ,
|
|
|
|
Potential registers zp ZP_WORD:3 [ main::screen#3 main::screen#2 ] : zp ZP_WORD:3 ,
|
|
|
|
Potential registers zp ZP_BYTE:5 [ main::$3 ] : zp ZP_BYTE:5 , reg byte x ,
|
|
|
|
Potential registers zp ZP_BYTE:6 [ main::$1 ] : zp ZP_BYTE:6 , reg byte a , reg byte x , reg byte y ,
|
|
|
|
Potential registers zp ZP_BYTE:7 [ main::$2 ] : zp ZP_BYTE:7 , reg byte a , reg byte x , reg byte y ,
|
|
|
|
Potential registers zp ZP_WORD:8 [ main::screen#1 ] : zp ZP_WORD:8 ,
|
|
|
|
Potential registers zp ZP_BYTE:10 [ main::$4 ] : zp ZP_BYTE:10 , reg byte a , reg byte x , reg byte y ,
|
|
|
|
Potential registers zp ZP_BYTE:11 [ main::$5 ] : zp ZP_BYTE:11 , reg byte a , reg byte x , reg byte y ,
|
|
|
|
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
|
|
Uplift Scope [main] 22: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 22: zp ZP_BYTE:6 [ main::$1 ] 22: zp ZP_BYTE:7 [ main::$2 ] 22: zp ZP_BYTE:10 [ main::$4 ] 22: zp ZP_BYTE:11 [ main::$5 ] 13.93: zp ZP_WORD:3 [ main::screen#3 main::screen#2 ] 8.25: zp ZP_WORD:8 [ main::screen#1 ] 6.6: zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Uplift Scope []
|
|
|
|
|
|
|
|
Uplifting [main] best 1163 combination reg byte x [ main::i#2 main::i#1 ] reg byte a [ main::$1 ] reg byte a [ main::$2 ] reg byte a [ main::$4 ] zp ZP_BYTE:11 [ main::$5 ] zp ZP_WORD:3 [ main::screen#3 main::screen#2 ] zp ZP_WORD:8 [ main::screen#1 ] zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Limited combination testing to 100 combinations of 1024 possible.
|
|
|
|
Uplifting [] best 1163 combination
|
|
|
|
Attempting to uplift remaining variables inzp ZP_BYTE:11 [ main::$5 ]
|
|
|
|
Uplifting [main] best 1103 combination reg byte a [ main::$5 ]
|
|
|
|
Attempting to uplift remaining variables inzp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Uplifting [main] best 1103 combination zp ZP_BYTE:5 [ main::$3 ]
|
|
|
|
Coalescing zero page register with common assignment [ zp ZP_WORD:3 [ main::screen#3 main::screen#2 ] ] with [ zp ZP_WORD:8 [ main::screen#1 ] ] - score: 2
|
|
|
|
Allocated (was zp ZP_WORD:3) zp ZP_WORD:2 [ main::screen#3 main::screen#2 main::screen#1 ]
|
|
|
|
Allocated (was zp ZP_BYTE:5) zp ZP_BYTE:4 [ main::$3 ]
|
|
|
|
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
2019-07-08 14:43:09 +00:00
|
|
|
// File Comments
|
2019-06-03 10:19:47 +00:00
|
|
|
// Tests optimization of identical sub-expressions
|
2019-07-08 14:43:09 +00:00
|
|
|
// Basic Upstart
|
2019-06-03 10:19:47 +00:00
|
|
|
.pc = $801 "Basic"
|
|
|
|
:BasicUpstart(bbegin)
|
|
|
|
.pc = $80d "Program"
|
2019-07-08 14:43:09 +00:00
|
|
|
// Global Constants & labels
|
|
|
|
// @begin
|
2019-06-03 10:19:47 +00:00
|
|
|
bbegin:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_bbegin:
|
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// @1
|
2019-06-03 10:19:47 +00:00
|
|
|
b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [2] call main
|
|
|
|
// [4] phi from @1 to main [phi:@1->main]
|
2019-06-03 10:19:47 +00:00
|
|
|
main_from_b1:
|
|
|
|
jsr main
|
2019-07-08 14:43:09 +00:00
|
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
2019-06-03 10:19:47 +00:00
|
|
|
bend_from_b1:
|
|
|
|
jmp bend
|
2019-07-08 14:43:09 +00:00
|
|
|
// @end
|
2019-06-03 10:19:47 +00:00
|
|
|
bend:
|
2019-07-08 14:43:09 +00:00
|
|
|
// main
|
2019-06-03 10:19:47 +00:00
|
|
|
main: {
|
|
|
|
.label _3 = 4
|
|
|
|
.label screen = 2
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi from main to main::@1 [phi:main->main::@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_main:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte*) main::screen#3 = (byte*) 1024 [phi:main->main::@1#0] -- pbuz1=pbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
lda #<$400
|
|
|
|
sta screen
|
|
|
|
lda #>$400
|
|
|
|
sta screen+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
ldx #0
|
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
2019-06-03 10:19:47 +00:00
|
|
|
b1_from_b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [5] phi (byte*) main::screen#3 = (byte*) main::screen#2 [phi:main::@1->main::@1#0] -- register_copy
|
|
|
|
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#1] -- register_copy
|
2019-06-03 10:19:47 +00:00
|
|
|
jmp b1
|
2019-07-08 14:43:09 +00:00
|
|
|
// main::@1
|
2019-06-03 10:19:47 +00:00
|
|
|
b1:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuxx_rol_1
|
2019-06-03 10:19:47 +00:00
|
|
|
txa
|
|
|
|
asl
|
|
|
|
sta _3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2 -- vbuaa=vbuz1_plus_vbuxx
|
2019-06-03 10:19:47 +00:00
|
|
|
txa
|
|
|
|
clc
|
|
|
|
adc _3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [8] (byte~) main::$2 ← (byte~) main::$1 + (byte) 3 -- vbuaa=vbuaa_plus_vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
clc
|
|
|
|
adc #3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [9] *((byte*) main::screen#3) ← (byte~) main::$2 -- _deref_pbuz1=vbuaa
|
2019-06-03 10:19:47 +00:00
|
|
|
ldy #0
|
|
|
|
sta (screen),y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3 -- pbuz1=_inc_pbuz1
|
2019-06-03 10:19:47 +00:00
|
|
|
inc screen
|
|
|
|
bne !+
|
|
|
|
inc screen+1
|
|
|
|
!:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2 -- vbuaa=vbuz1_plus_vbuxx
|
2019-06-03 10:19:47 +00:00
|
|
|
txa
|
|
|
|
clc
|
|
|
|
adc _3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [12] (byte~) main::$5 ← (byte~) main::$4 + (byte) 3 -- vbuaa=vbuaa_plus_vbuc1
|
2019-06-03 10:19:47 +00:00
|
|
|
clc
|
|
|
|
adc #3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [13] *((byte*) main::screen#1) ← (byte~) main::$5 -- _deref_pbuz1=vbuaa
|
2019-06-03 10:19:47 +00:00
|
|
|
ldy #0
|
|
|
|
sta (screen),y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1 -- pbuz1=_inc_pbuz1
|
2019-06-03 10:19:47 +00:00
|
|
|
inc screen
|
|
|
|
bne !+
|
|
|
|
inc screen+1
|
|
|
|
!:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
2019-06-03 10:19:47 +00:00
|
|
|
inx
|
2019-07-08 14:43:09 +00:00
|
|
|
// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
2019-06-03 10:19:47 +00:00
|
|
|
cpx #3
|
|
|
|
bne b1_from_b1
|
|
|
|
jmp breturn
|
2019-07-08 14:43:09 +00:00
|
|
|
// main::@return
|
2019-06-03 10:19:47 +00:00
|
|
|
breturn:
|
2019-07-08 14:43:09 +00:00
|
|
|
// [17] return
|
2019-06-03 10:19:47 +00:00
|
|
|
rts
|
|
|
|
}
|
2019-07-08 14:43:09 +00:00
|
|
|
// File Data
|
2019-06-03 10:19:47 +00:00
|
|
|
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
|
|
Removing instruction jmp b1
|
|
|
|
Removing instruction jmp bend
|
|
|
|
Removing instruction jmp b1
|
|
|
|
Removing instruction jmp breturn
|
|
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
|
|
Replacing label b1_from_b1 with b1
|
|
|
|
Removing instruction b1_from_bbegin:
|
|
|
|
Removing instruction b1:
|
|
|
|
Removing instruction main_from_b1:
|
|
|
|
Removing instruction bend_from_b1:
|
|
|
|
Removing instruction b1_from_b1:
|
|
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
|
|
Removing instruction bend:
|
|
|
|
Removing instruction b1_from_main:
|
|
|
|
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
|
|
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
|
|
Removing instruction bbegin:
|
|
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
|
|
|
|
|
|
FINAL SYMBOL TABLE
|
|
|
|
(label) @1
|
|
|
|
(label) @begin
|
|
|
|
(label) @end
|
|
|
|
(void()) main()
|
|
|
|
(byte~) main::$1 reg byte a 22.0
|
|
|
|
(byte~) main::$2 reg byte a 22.0
|
|
|
|
(byte~) main::$3 $3 zp ZP_BYTE:4 6.6000000000000005
|
|
|
|
(byte~) main::$4 reg byte a 22.0
|
|
|
|
(byte~) main::$5 reg byte a 22.0
|
|
|
|
(label) main::@1
|
|
|
|
(label) main::@return
|
|
|
|
(byte) main::i
|
|
|
|
(byte) main::i#1 reg byte x 16.5
|
|
|
|
(byte) main::i#2 reg byte x 5.5
|
|
|
|
(byte*) main::screen
|
|
|
|
(byte*) main::screen#1 screen zp ZP_WORD:2 8.25
|
|
|
|
(byte*) main::screen#2 screen zp ZP_WORD:2 7.333333333333333
|
|
|
|
(byte*) main::screen#3 screen zp ZP_WORD:2 6.6000000000000005
|
|
|
|
|
|
|
|
reg byte x [ main::i#2 main::i#1 ]
|
|
|
|
zp ZP_WORD:2 [ main::screen#3 main::screen#2 main::screen#1 ]
|
|
|
|
zp ZP_BYTE:4 [ main::$3 ]
|
|
|
|
reg byte a [ main::$1 ]
|
|
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reg byte a [ main::$2 ]
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reg byte a [ main::$4 ]
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reg byte a [ main::$5 ]
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FINAL ASSEMBLER
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Score: 891
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2019-07-08 14:43:09 +00:00
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// File Comments
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2019-06-03 10:19:47 +00:00
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// Tests optimization of identical sub-expressions
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2019-07-08 14:43:09 +00:00
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// Basic Upstart
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2019-06-03 10:19:47 +00:00
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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2019-07-08 14:43:09 +00:00
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// Global Constants & labels
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// @begin
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// [1] phi from @begin to @1 [phi:@begin->@1]
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// @1
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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// [3] phi from @1 to @end [phi:@1->@end]
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// @end
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// main
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2019-06-03 10:19:47 +00:00
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main: {
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.label _3 = 4
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.label screen = 2
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2019-07-08 14:43:09 +00:00
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// [5] phi from main to main::@1 [phi:main->main::@1]
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// [5] phi (byte*) main::screen#3 = (byte*) 1024 [phi:main->main::@1#0] -- pbuz1=pbuc1
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2019-06-03 10:19:47 +00:00
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lda #<$400
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sta screen
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lda #>$400
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sta screen+1
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2019-07-08 14:43:09 +00:00
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// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
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2019-06-03 10:19:47 +00:00
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ldx #0
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2019-07-08 14:43:09 +00:00
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// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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// [5] phi (byte*) main::screen#3 = (byte*) main::screen#2 [phi:main::@1->main::@1#0] -- register_copy
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// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#1] -- register_copy
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// main::@1
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2019-06-03 10:19:47 +00:00
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b1:
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2019-07-08 14:43:09 +00:00
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// i*2
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// [6] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuxx_rol_1
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2019-06-03 10:19:47 +00:00
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txa
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asl
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sta _3
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2019-07-08 14:43:09 +00:00
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// i*2+i
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// [7] (byte~) main::$1 ← (byte~) main::$3 + (byte) main::i#2 -- vbuaa=vbuz1_plus_vbuxx
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2019-06-03 10:19:47 +00:00
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txa
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clc
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adc _3
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2019-07-08 14:43:09 +00:00
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// i*2+i+3
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// [8] (byte~) main::$2 ← (byte~) main::$1 + (byte) 3 -- vbuaa=vbuaa_plus_vbuc1
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2019-06-03 10:19:47 +00:00
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clc
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adc #3
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2019-07-08 14:43:09 +00:00
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// *screen++ = i*2+i+3
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// [9] *((byte*) main::screen#3) ← (byte~) main::$2 -- _deref_pbuz1=vbuaa
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2019-06-03 10:19:47 +00:00
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ldy #0
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sta (screen),y
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2019-07-08 14:43:09 +00:00
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// *screen++ = i*2+i+3;
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// [10] (byte*) main::screen#1 ← ++ (byte*) main::screen#3 -- pbuz1=_inc_pbuz1
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2019-06-03 10:19:47 +00:00
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inc screen
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bne !+
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inc screen+1
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!:
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2019-07-08 14:43:09 +00:00
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// i*2+i
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// [11] (byte~) main::$4 ← (byte~) main::$3 + (byte) main::i#2 -- vbuaa=vbuz1_plus_vbuxx
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2019-06-03 10:19:47 +00:00
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txa
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clc
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adc _3
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2019-07-08 14:43:09 +00:00
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// i*2+i+3
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// [12] (byte~) main::$5 ← (byte~) main::$4 + (byte) 3 -- vbuaa=vbuaa_plus_vbuc1
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2019-06-03 10:19:47 +00:00
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clc
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adc #3
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2019-07-08 14:43:09 +00:00
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// *screen++ = i*2+i+3
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// [13] *((byte*) main::screen#1) ← (byte~) main::$5 -- _deref_pbuz1=vbuaa
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2019-06-03 10:19:47 +00:00
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ldy #0
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sta (screen),y
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2019-07-08 14:43:09 +00:00
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// *screen++ = i*2+i+3;
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// [14] (byte*) main::screen#2 ← ++ (byte*) main::screen#1 -- pbuz1=_inc_pbuz1
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2019-06-03 10:19:47 +00:00
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inc screen
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bne !+
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inc screen+1
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!:
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2019-07-08 14:43:09 +00:00
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// for( byte i: 0..2)
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// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
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2019-06-03 10:19:47 +00:00
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inx
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2019-07-08 14:43:09 +00:00
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// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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2019-06-03 10:19:47 +00:00
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cpx #3
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bne b1
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2019-07-08 14:43:09 +00:00
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// main::@return
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// }
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// [17] return
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2019-06-03 10:19:47 +00:00
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rts
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}
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2019-07-08 14:43:09 +00:00
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// File Data
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2019-06-03 10:19:47 +00:00
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