mirror of https://gitlab.com/camelot/kickc.git
536 lines
18 KiB
Plaintext
536 lines
18 KiB
Plaintext
Inlined call call __init
|
|
Eliminating unused variable with no statement main::$0
|
|
Eliminating unused variable with no statement main::$1
|
|
Removing C-classic struct-unwound assignment sum::d = struct-unwound {*((char *)&sum::d+OFFSET_STRUCT_DATA_C), *((char *)&sum::d+OFFSET_STRUCT_DATA_D)}
|
|
Removing C-classic struct-unwound assignment sum::return = struct-unwound {*(&sum::return)}
|
|
|
|
CONTROL FLOW GRAPH SSA
|
|
|
|
void main()
|
|
main: scope:[main] from __start::@1
|
|
idx#11 = phi( __start::@1/idx#12 )
|
|
sum::a#0 = 1
|
|
sum::b#0 = 2
|
|
call sum
|
|
sum::return = sum::return
|
|
to:main::@1
|
|
main::@1: scope:[main] from main
|
|
idx#6 = phi( main/idx#11 )
|
|
main::x = sum::return
|
|
SCREEN[idx#6] = *((char *)&main::x+OFFSET_STRUCT_DATA_C)
|
|
idx#0 = ++ idx#6
|
|
sum::a#1 = 3
|
|
sum::b#1 = 4
|
|
call sum
|
|
sum::return = sum::return
|
|
to:main::@2
|
|
main::@2: scope:[main] from main::@1
|
|
idx#7 = phi( main::@1/idx#0 )
|
|
main::y = sum::return
|
|
SCREEN[idx#7] = *((char *)&main::y+OFFSET_STRUCT_DATA_D)
|
|
idx#1 = ++ idx#7
|
|
to:main::@return
|
|
main::@return: scope:[main] from main::@2
|
|
idx#8 = phi( main::@2/idx#1 )
|
|
idx#2 = idx#8
|
|
return
|
|
to:@return
|
|
|
|
struct Data sum(char a , char b)
|
|
sum: scope:[sum] from main main::@1
|
|
sum::b#2 = phi( main/sum::b#0, main::@1/sum::b#1 )
|
|
sum::a#2 = phi( main/sum::a#0, main::@1/sum::a#1 )
|
|
sum::$0 = sum::a#2 + sum::b#2
|
|
*((char *)&sum::d+OFFSET_STRUCT_DATA_C) = sum::$0
|
|
*((char *)&sum::d+OFFSET_STRUCT_DATA_D) = sum::b#2
|
|
*(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA)
|
|
to:sum::@return
|
|
sum::@return: scope:[sum] from sum
|
|
return
|
|
to:@return
|
|
|
|
void __start()
|
|
__start: scope:[__start] from
|
|
to:__start::__init1
|
|
__start::__init1: scope:[__start] from __start
|
|
idx#3 = 0
|
|
to:__start::@1
|
|
__start::@1: scope:[__start] from __start::__init1
|
|
idx#12 = phi( __start::__init1/idx#3 )
|
|
call main
|
|
to:__start::@2
|
|
__start::@2: scope:[__start] from __start::@1
|
|
idx#9 = phi( __start::@1/idx#2 )
|
|
idx#4 = idx#9
|
|
to:__start::@return
|
|
__start::@return: scope:[__start] from __start::@2
|
|
idx#10 = phi( __start::@2/idx#4 )
|
|
idx#5 = idx#10
|
|
return
|
|
to:@return
|
|
|
|
SYMBOL TABLE SSA
|
|
__constant char OFFSET_STRUCT_DATA_C = 0
|
|
__constant char OFFSET_STRUCT_DATA_D = 1
|
|
__constant char * const SCREEN = (char *)$400
|
|
__constant char SIZEOF_STRUCT_DATA = 2
|
|
void __start()
|
|
char idx
|
|
char idx#0
|
|
char idx#1
|
|
char idx#10
|
|
char idx#11
|
|
char idx#12
|
|
char idx#2
|
|
char idx#3
|
|
char idx#4
|
|
char idx#5
|
|
char idx#6
|
|
char idx#7
|
|
char idx#8
|
|
char idx#9
|
|
void main()
|
|
__loadstore struct Data main::x
|
|
__loadstore struct Data main::y
|
|
struct Data sum(char a , char b)
|
|
char sum::$0
|
|
char sum::a
|
|
char sum::a#0
|
|
char sum::a#1
|
|
char sum::a#2
|
|
char sum::b
|
|
char sum::b#0
|
|
char sum::b#1
|
|
char sum::b#2
|
|
__loadstore struct Data sum::d
|
|
__loadstore struct Data sum::return
|
|
|
|
Adding number conversion cast (unumber) 1 in sum::a#0 = 1
|
|
Adding number conversion cast (unumber) 2 in sum::b#0 = 2
|
|
Adding number conversion cast (unumber) 3 in sum::a#1 = 3
|
|
Adding number conversion cast (unumber) 4 in sum::b#1 = 4
|
|
Successful SSA optimization PassNAddNumberTypeConversions
|
|
Inlining cast sum::a#0 = (unumber)1
|
|
Inlining cast sum::b#0 = (unumber)2
|
|
Inlining cast sum::a#1 = (unumber)3
|
|
Inlining cast sum::b#1 = (unumber)4
|
|
Successful SSA optimization Pass2InlineCast
|
|
Simplifying constant pointer cast (char *) 1024
|
|
Simplifying constant integer cast 1
|
|
Simplifying constant integer cast 2
|
|
Simplifying constant integer cast 3
|
|
Simplifying constant integer cast 4
|
|
Successful SSA optimization PassNCastSimplification
|
|
Finalized unsigned number type (char) 1
|
|
Finalized unsigned number type (char) 2
|
|
Finalized unsigned number type (char) 3
|
|
Finalized unsigned number type (char) 4
|
|
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
|
Alias idx#11 = idx#6
|
|
Alias idx#0 = idx#7
|
|
Alias idx#1 = idx#8 idx#2
|
|
Alias idx#12 = idx#3
|
|
Alias idx#10 = idx#4 idx#9 idx#5
|
|
Successful SSA optimization Pass2AliasElimination
|
|
Identical Phi Values idx#11 idx#12
|
|
Identical Phi Values idx#10 idx#1
|
|
Successful SSA optimization Pass2IdenticalPhiElimination
|
|
Constant sum::a#0 = 1
|
|
Constant sum::b#0 = 2
|
|
Constant sum::a#1 = 3
|
|
Constant sum::b#1 = 4
|
|
Constant idx#12 = 0
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Simplifying expression containing zero (char *)&main::x in [6] SCREEN[idx#12] = *((char *)&main::x+OFFSET_STRUCT_DATA_C)
|
|
Simplifying expression containing zero SCREEN in [6] SCREEN[idx#12] = *((char *)&main::x)
|
|
Simplifying expression containing zero (char *)&sum::d in [18] *((char *)&sum::d+OFFSET_STRUCT_DATA_C) = sum::$0
|
|
Successful SSA optimization PassNSimplifyExpressionWithZero
|
|
Eliminating unused variable idx#1 and assignment [9] idx#1 = ++ idx#0
|
|
Eliminating unused constant OFFSET_STRUCT_DATA_C
|
|
Successful SSA optimization PassNEliminateUnusedVars
|
|
Removing unused procedure __start
|
|
Removing unused procedure block __start
|
|
Removing unused procedure block __start::__init1
|
|
Removing unused procedure block __start::@1
|
|
Removing unused procedure block __start::@2
|
|
Removing unused procedure block __start::@return
|
|
Successful SSA optimization PassNEliminateEmptyStart
|
|
Constant right-side identified [4] idx#0 = ++ idx#12
|
|
Successful SSA optimization Pass2ConstantRValueConsolidation
|
|
Constant idx#0 = ++idx#12
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Inlining constant with var siblings sum::a#0
|
|
Inlining constant with var siblings sum::b#0
|
|
Inlining constant with var siblings sum::a#1
|
|
Inlining constant with var siblings sum::b#1
|
|
Inlining constant with different constant siblings idx#12
|
|
Inlining constant with different constant siblings idx#0
|
|
Constant inlined sum::b#1 = 4
|
|
Constant inlined sum::b#0 = 2
|
|
Constant inlined sum::a#1 = 3
|
|
Constant inlined idx#12 = 0
|
|
Constant inlined idx#0 = ++0
|
|
Constant inlined sum::a#0 = 1
|
|
Successful SSA optimization Pass2ConstantInlining
|
|
Consolidated array index constant in *(SCREEN+++0)
|
|
Successful SSA optimization Pass2ConstantAdditionElimination
|
|
Simplifying constant integer increment ++0
|
|
Successful SSA optimization Pass2ConstantSimplification
|
|
Removing C-classic struct-unwound assignment sum::return = struct-unwound {}
|
|
Removing C-classic struct-unwound assignment main::x = struct-unwound {*(&main::x)}
|
|
Removing C-classic struct-unwound assignment sum::return = struct-unwound {}
|
|
Removing C-classic struct-unwound assignment main::y = struct-unwound {*(&main::y)}
|
|
Adding NOP phi() at start of main
|
|
CALL GRAPH
|
|
Calls in [main] to sum:1 sum:4
|
|
|
|
Created 2 initial phi equivalence classes
|
|
Coalesced down to 2 phi equivalence classes
|
|
Adding NOP phi() at start of main
|
|
|
|
FINAL CONTROL FLOW GRAPH
|
|
|
|
void main()
|
|
main: scope:[main] from
|
|
[0] phi()
|
|
[1] call sum
|
|
to:main::@1
|
|
main::@1: scope:[main] from main
|
|
[2] *(&main::x) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA)
|
|
[3] *SCREEN = *((char *)&main::x)
|
|
[4] call sum
|
|
to:main::@2
|
|
main::@2: scope:[main] from main::@1
|
|
[5] *(&main::y) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA)
|
|
[6] *(SCREEN+1) = *((char *)&main::y+OFFSET_STRUCT_DATA_D)
|
|
to:main::@return
|
|
main::@return: scope:[main] from main::@2
|
|
[7] return
|
|
to:@return
|
|
|
|
struct Data sum(char a , char b)
|
|
sum: scope:[sum] from main main::@1
|
|
[8] sum::b#2 = phi( main/2, main::@1/4 )
|
|
[8] sum::a#2 = phi( main/1, main::@1/3 )
|
|
[9] sum::$0 = sum::a#2 + sum::b#2
|
|
[10] *((char *)&sum::d) = sum::$0
|
|
[11] *((char *)&sum::d+OFFSET_STRUCT_DATA_D) = sum::b#2
|
|
[12] *(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA)
|
|
to:sum::@return
|
|
sum::@return: scope:[sum] from sum
|
|
[13] return
|
|
to:@return
|
|
|
|
|
|
VARIABLE REGISTER WEIGHTS
|
|
char idx
|
|
void main()
|
|
__loadstore struct Data main::x
|
|
__loadstore struct Data main::y
|
|
struct Data sum(char a , char b)
|
|
char sum::$0 // 22.0
|
|
char sum::a
|
|
char sum::a#2 // 11.0
|
|
char sum::b
|
|
char sum::b#2 // 7.333333333333333
|
|
__loadstore struct Data sum::d
|
|
__loadstore struct Data sum::return
|
|
|
|
Initial phi equivalence classes
|
|
[ sum::a#2 ]
|
|
[ sum::b#2 ]
|
|
Added variable sum::$0 to live range equivalence class [ sum::$0 ]
|
|
Added variable main::x to live range equivalence class [ main::x ]
|
|
Added variable main::y to live range equivalence class [ main::y ]
|
|
Added variable sum::return to live range equivalence class [ sum::return ]
|
|
Added variable sum::d to live range equivalence class [ sum::d ]
|
|
Complete equivalence classes
|
|
[ sum::a#2 ]
|
|
[ sum::b#2 ]
|
|
[ sum::$0 ]
|
|
[ main::x ]
|
|
[ main::y ]
|
|
[ sum::return ]
|
|
[ sum::d ]
|
|
Allocated zp[1]:2 [ sum::$0 ]
|
|
Allocated zp[1]:3 [ sum::a#2 ]
|
|
Allocated zp[1]:4 [ sum::b#2 ]
|
|
Allocated zp[2]:5 [ main::x ]
|
|
Allocated zp[2]:7 [ main::y ]
|
|
Allocated zp[2]:9 [ sum::return ]
|
|
Allocated zp[2]:11 [ sum::d ]
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
Statement [2] *(&main::x) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) [ main::x sum::return main::y sum::d ] ( [ main::x sum::return main::y sum::d ] { } ) always clobbers reg byte a reg byte y
|
|
Statement [3] *SCREEN = *((char *)&main::x) [ sum::return main::y sum::d ] ( [ sum::return main::y sum::d ] { } ) always clobbers reg byte a
|
|
Statement [5] *(&main::y) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) [ main::y ] ( [ main::y ] { } ) always clobbers reg byte a reg byte y
|
|
Statement [6] *(SCREEN+1) = *((char *)&main::y+OFFSET_STRUCT_DATA_D) [ ] ( [ ] { } ) always clobbers reg byte a
|
|
Statement [9] sum::$0 = sum::a#2 + sum::b#2 [ sum::return sum::b#2 sum::$0 sum::d ] ( sum:1 [ main::x main::y sum::return sum::b#2 sum::$0 sum::d ] { } sum:4 [ main::y sum::return sum::b#2 sum::$0 sum::d ] { } ) always clobbers reg byte a
|
|
Removing always clobbered register reg byte a as potential for zp[1]:4 [ sum::b#2 ]
|
|
Statement [12] *(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA) [ sum::return sum::d ] ( sum:1 [ main::x main::y sum::return sum::d ] { } sum:4 [ main::y sum::return sum::d ] { } ) always clobbers reg byte a reg byte y
|
|
Statement [2] *(&main::x) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) [ main::x sum::return main::y sum::d ] ( [ main::x sum::return main::y sum::d ] { } ) always clobbers reg byte a reg byte y
|
|
Statement [3] *SCREEN = *((char *)&main::x) [ sum::return main::y sum::d ] ( [ sum::return main::y sum::d ] { } ) always clobbers reg byte a
|
|
Statement [5] *(&main::y) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) [ main::y ] ( [ main::y ] { } ) always clobbers reg byte a reg byte y
|
|
Statement [6] *(SCREEN+1) = *((char *)&main::y+OFFSET_STRUCT_DATA_D) [ ] ( [ ] { } ) always clobbers reg byte a
|
|
Statement [9] sum::$0 = sum::a#2 + sum::b#2 [ sum::return sum::b#2 sum::$0 sum::d ] ( sum:1 [ main::x main::y sum::return sum::b#2 sum::$0 sum::d ] { } sum:4 [ main::y sum::return sum::b#2 sum::$0 sum::d ] { } ) always clobbers reg byte a
|
|
Statement [12] *(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA) [ sum::return sum::d ] ( sum:1 [ main::x main::y sum::return sum::d ] { } sum:4 [ main::y sum::return sum::d ] { } ) always clobbers reg byte a reg byte y
|
|
Potential registers zp[1]:3 [ sum::a#2 ] : zp[1]:3 , reg byte a , reg byte x , reg byte y ,
|
|
Potential registers zp[1]:4 [ sum::b#2 ] : zp[1]:4 , reg byte x , reg byte y ,
|
|
Potential registers zp[1]:2 [ sum::$0 ] : zp[1]:2 , reg byte a , reg byte x , reg byte y ,
|
|
Potential registers zp[2]:5 [ main::x ] : zp[2]:5 ,
|
|
Potential registers zp[2]:7 [ main::y ] : zp[2]:7 ,
|
|
Potential registers zp[2]:9 [ sum::return ] : zp[2]:9 ,
|
|
Potential registers zp[2]:11 [ sum::d ] : zp[2]:11 ,
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
Uplift Scope [sum] 22: zp[1]:2 [ sum::$0 ] 11: zp[1]:3 [ sum::a#2 ] 7.33: zp[1]:4 [ sum::b#2 ] 0: zp[2]:9 [ sum::return ] 0: zp[2]:11 [ sum::d ]
|
|
Uplift Scope [Data]
|
|
Uplift Scope [main] 0: zp[2]:5 [ main::x ] 0: zp[2]:7 [ main::y ]
|
|
Uplift Scope []
|
|
|
|
Uplifting [sum] best 120 combination reg byte a [ sum::$0 ] reg byte a [ sum::a#2 ] reg byte x [ sum::b#2 ] zp[2]:9 [ sum::return ] zp[2]:11 [ sum::d ]
|
|
Uplifting [Data] best 120 combination
|
|
Uplifting [main] best 120 combination zp[2]:5 [ main::x ] zp[2]:7 [ main::y ]
|
|
Uplifting [] best 120 combination
|
|
Allocated (was zp[2]:5) zp[2]:2 [ main::x ]
|
|
Allocated (was zp[2]:7) zp[2]:4 [ main::y ]
|
|
Allocated (was zp[2]:9) zp[2]:6 [ sum::return ]
|
|
Allocated (was zp[2]:11) zp[2]:8 [ sum::d ]
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
// File Comments
|
|
// Test intermediate vars
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="intermediates-struct.prg", type="prg", segments="Program"]
|
|
.segmentdef Program [segments="Basic, Code, Data"]
|
|
.segmentdef Basic [start=$0801]
|
|
.segmentdef Code [start=$80d]
|
|
.segmentdef Data [startAfter="Code"]
|
|
.segment Basic
|
|
:BasicUpstart(main)
|
|
// Global Constants & labels
|
|
.const OFFSET_STRUCT_DATA_D = 1
|
|
.const SIZEOF_STRUCT_DATA = 2
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
.label x = 2
|
|
.label y = 4
|
|
// [1] call sum
|
|
// [8] phi from main to sum [phi:main->sum]
|
|
sum_from_main:
|
|
// [8] phi sum::b#2 = 2 [phi:main->sum#0] -- vbuxx=vbuc1
|
|
ldx #2
|
|
// [8] phi sum::a#2 = 1 [phi:main->sum#1] -- vbuaa=vbuc1
|
|
lda #1
|
|
jsr sum
|
|
jmp __b1
|
|
// main::@1
|
|
__b1:
|
|
// [2] *(&main::x) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda sum.return-1,y
|
|
sta x-1,y
|
|
dey
|
|
bne !-
|
|
// [3] *SCREEN = *((char *)&main::x) -- _deref_pbuc1=_deref_pbuc2
|
|
lda.z x
|
|
sta SCREEN
|
|
// [4] call sum
|
|
// [8] phi from main::@1 to sum [phi:main::@1->sum]
|
|
sum_from___b1:
|
|
// [8] phi sum::b#2 = 4 [phi:main::@1->sum#0] -- vbuxx=vbuc1
|
|
ldx #4
|
|
// [8] phi sum::a#2 = 3 [phi:main::@1->sum#1] -- vbuaa=vbuc1
|
|
lda #3
|
|
jsr sum
|
|
jmp __b2
|
|
// main::@2
|
|
__b2:
|
|
// [5] *(&main::y) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda sum.return-1,y
|
|
sta y-1,y
|
|
dey
|
|
bne !-
|
|
// [6] *(SCREEN+1) = *((char *)&main::y+OFFSET_STRUCT_DATA_D) -- _deref_pbuc1=_deref_pbuc2
|
|
lda.z y+OFFSET_STRUCT_DATA_D
|
|
sta SCREEN+1
|
|
jmp __breturn
|
|
// main::@return
|
|
__breturn:
|
|
// [7] return
|
|
rts
|
|
}
|
|
// sum
|
|
// __zp(6) struct Data sum(__register(A) char a, __register(X) char b)
|
|
sum: {
|
|
.label return = 6
|
|
.label d = 8
|
|
// [9] sum::$0 = sum::a#2 + sum::b#2 -- vbuaa=vbuaa_plus_vbuxx
|
|
stx.z $ff
|
|
clc
|
|
adc.z $ff
|
|
// [10] *((char *)&sum::d) = sum::$0 -- _deref_pbuc1=vbuaa
|
|
sta.z d
|
|
// [11] *((char *)&sum::d+OFFSET_STRUCT_DATA_D) = sum::b#2 -- _deref_pbuc1=vbuxx
|
|
stx.z d+OFFSET_STRUCT_DATA_D
|
|
// [12] *(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda d-1,y
|
|
sta return-1,y
|
|
dey
|
|
bne !-
|
|
jmp __breturn
|
|
// sum::@return
|
|
__breturn:
|
|
// [13] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __b2
|
|
Removing instruction jmp __breturn
|
|
Removing instruction jmp __breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Removing instruction sum_from_main:
|
|
Removing instruction __b1:
|
|
Removing instruction sum_from___b1:
|
|
Removing instruction __b2:
|
|
Removing instruction __breturn:
|
|
Removing instruction __breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
__constant char OFFSET_STRUCT_DATA_D = 1
|
|
__constant char * const SCREEN = (char *) 1024
|
|
__constant char SIZEOF_STRUCT_DATA = 2
|
|
char idx
|
|
void main()
|
|
__loadstore struct Data main::x // zp[2]:2
|
|
__loadstore struct Data main::y // zp[2]:4
|
|
struct Data sum(char a , char b)
|
|
char sum::$0 // reg byte a 22.0
|
|
char sum::a
|
|
char sum::a#2 // reg byte a 11.0
|
|
char sum::b
|
|
char sum::b#2 // reg byte x 7.333333333333333
|
|
__loadstore struct Data sum::d // zp[2]:8
|
|
__loadstore struct Data sum::return // zp[2]:6
|
|
|
|
reg byte a [ sum::a#2 ]
|
|
reg byte x [ sum::b#2 ]
|
|
reg byte a [ sum::$0 ]
|
|
zp[2]:2 [ main::x ]
|
|
zp[2]:4 [ main::y ]
|
|
zp[2]:6 [ sum::return ]
|
|
zp[2]:8 [ sum::d ]
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 108
|
|
|
|
// File Comments
|
|
// Test intermediate vars
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="intermediates-struct.prg", type="prg", segments="Program"]
|
|
.segmentdef Program [segments="Basic, Code, Data"]
|
|
.segmentdef Basic [start=$0801]
|
|
.segmentdef Code [start=$80d]
|
|
.segmentdef Data [startAfter="Code"]
|
|
.segment Basic
|
|
:BasicUpstart(main)
|
|
// Global Constants & labels
|
|
.const OFFSET_STRUCT_DATA_D = 1
|
|
.const SIZEOF_STRUCT_DATA = 2
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
.label x = 2
|
|
.label y = 4
|
|
// struct Data x = sum(1,2)
|
|
// [1] call sum
|
|
// [8] phi from main to sum [phi:main->sum]
|
|
// [8] phi sum::b#2 = 2 [phi:main->sum#0] -- vbuxx=vbuc1
|
|
ldx #2
|
|
// [8] phi sum::a#2 = 1 [phi:main->sum#1] -- vbuaa=vbuc1
|
|
lda #1
|
|
jsr sum
|
|
// main::@1
|
|
// struct Data x = sum(1,2)
|
|
// [2] *(&main::x) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda sum.return-1,y
|
|
sta x-1,y
|
|
dey
|
|
bne !-
|
|
// SCREEN[idx++] = x.c
|
|
// [3] *SCREEN = *((char *)&main::x) -- _deref_pbuc1=_deref_pbuc2
|
|
lda.z x
|
|
sta SCREEN
|
|
// struct Data y = sum(3, 4)
|
|
// [4] call sum
|
|
// [8] phi from main::@1 to sum [phi:main::@1->sum]
|
|
// [8] phi sum::b#2 = 4 [phi:main::@1->sum#0] -- vbuxx=vbuc1
|
|
ldx #4
|
|
// [8] phi sum::a#2 = 3 [phi:main::@1->sum#1] -- vbuaa=vbuc1
|
|
lda #3
|
|
jsr sum
|
|
// main::@2
|
|
// struct Data y = sum(3, 4)
|
|
// [5] *(&main::y) = memcpy(*(&sum::return), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda sum.return-1,y
|
|
sta y-1,y
|
|
dey
|
|
bne !-
|
|
// SCREEN[idx++] = y.d
|
|
// [6] *(SCREEN+1) = *((char *)&main::y+OFFSET_STRUCT_DATA_D) -- _deref_pbuc1=_deref_pbuc2
|
|
lda.z y+OFFSET_STRUCT_DATA_D
|
|
sta SCREEN+1
|
|
// main::@return
|
|
// }
|
|
// [7] return
|
|
rts
|
|
}
|
|
// sum
|
|
// __zp(6) struct Data sum(__register(A) char a, __register(X) char b)
|
|
sum: {
|
|
.label return = 6
|
|
.label d = 8
|
|
// a+b
|
|
// [9] sum::$0 = sum::a#2 + sum::b#2 -- vbuaa=vbuaa_plus_vbuxx
|
|
stx.z $ff
|
|
clc
|
|
adc.z $ff
|
|
// struct Data d = { a+b, b }
|
|
// [10] *((char *)&sum::d) = sum::$0 -- _deref_pbuc1=vbuaa
|
|
sta.z d
|
|
// [11] *((char *)&sum::d+OFFSET_STRUCT_DATA_D) = sum::b#2 -- _deref_pbuc1=vbuxx
|
|
stx.z d+OFFSET_STRUCT_DATA_D
|
|
// return d;
|
|
// [12] *(&sum::return) = memcpy(*(&sum::d), struct Data, SIZEOF_STRUCT_DATA) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
|
|
ldy #SIZEOF_STRUCT_DATA
|
|
!:
|
|
lda d-1,y
|
|
sta return-1,y
|
|
dey
|
|
bne !-
|
|
// sum::@return
|
|
// }
|
|
// [13] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|