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structs_magic

생성일 4년 전비교 결과 만료 없음

5 삭제

행
총
삭제

글자
총
삭제

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118 행

4 추가

행
총
추가

글자
총
추가

이 기능을 계속 사용하려면 업그레이드해 주세요 Diffchecker Pro 요금제 보기

116 행

```assembly

; System.SpanHelpers.LastIndexOfValueType[[System.Byte, System.Private.CoreLib]](Byte ByRef, Byte, Int32)

; System.SpanHelpers.LastIndexOfValueType[[System.Byte, System.Private.CoreLib],[System.SpanHelpers+DefaultEqualityComparer`1[[System.Byte, System.Private.CoreLib]], System.Private.CoreLib]](Byte ByRef, Byte, Int32)

vzeroupper

cmp r8d,10

jge short M11_L02

dec r8d

js near ptr M11_L09

movzx r9d,dl

nop word ptr [rax+rax]

M11_L00:

movsxd rax,r8d

movzx eax,byte ptr [rcx+rax]

cmp eax,r9d

je short M11_L01

dec r8d

jns short M11_L00

jmp near ptr M11_L09

M11_L01:

mov eax,r8d

jmp near ptr M11_L08

M11_L02:

cmp r8d,20

jle near ptr M11_L05

jl near ptr M11_L05

movzx r9d,dl

vmovd xmm0,r9d

vpbroadcastb ymm0,xmm0

lea edx,[r8-20]

movsxd r9,edx

add r9,rcx

M11_L03:

vpcmpeqb ymm1,ymm0,[r9]

vptest ymm1,ymm1

jne short M11_L04

add r9,0FFFFFFFFFFFFFFE0

cmp r9,rcx

jae short M11_L03

mov r9d,r8d

mov r8d,r9d

test r8b,1F

je near ptr M11_L09

vpcmpeqb ymm1,ymm0,[rcx]

vptest ymm1,ymm1

je near ptr M11_L09

vpmovmskb ecx,ymm1

xor eax,eax

lzcnt eax,ecx

neg eax

add eax,1F

jmp near ptr M11_L08

nop word ptr [rax+rax]

M11_L04:

mov rax,r9

sub rax,rcx

mov ecx,eax

vpmovmskb eax,ymm1

lzcnt eax,eax

neg eax

lea eax,[rcx+rax+1F]

jmp short M11_L08

M11_L05:

movzx r9d,dl

vmovd xmm0,r9d

vpbroadcastb xmm0,xmm0

lea eax,[r8-10]

cdqe

add rax,rcx

M11_L06:

vpcmpeqb xmm1,xmm0,[rax]

vptest xmm1,xmm1

jne short M11_L07

add rax,0FFFFFFFFFFFFFFF0

cmp rax,rcx

jae short M11_L06

mov eax,r8d

test al,0F

je short M11_L09

vpcmpeqb xmm1,xmm0,[rcx]

vptest xmm1,xmm1

je short M11_L09

vpmovmskb ecx,xmm1

xor eax,eax

lzcnt eax,ecx

neg eax

add eax,1F

jmp short M11_L08

M11_L07:

sub rax,rcx

vpmovmskb edx,xmm1

xor r9d,r9d

lzcnt r9d,edx

mov ecx,r9d

neg ecx

lea eax,[rax+rcx+1F]

M11_L08:

vzeroupper

ret

M11_L09:

mov eax,0FFFFFFFF

vzeroupper

ret

int 3

sbb [rax],eax

add [rax],al

(bad)

push 0FFFFFFFFFA9896CC

cwde

cli

jg short M11_L10

M11_L10:

add [rbp+48],dl

mov ebp,esp

mov [rbp+10],rcx

; Total bytes of code 344

```

저장된 비교 결과

원본

파일 열기

```assembly
; System.SpanHelpers.LastIndexOfValueType[[System.Byte, System.Private.CoreLib]](Byte ByRef, Byte, Int32)
       vzeroupper
       cmp       r8d,10
       jge       short M11_L02
       dec       r8d
       js        near ptr M11_L09
       movzx     r9d,dl
       nop       word ptr [rax+rax]
M11_L00:
       movsxd    rax,r8d
       movzx     eax,byte ptr [rcx+rax]
       cmp       eax,r9d
       je        short M11_L01
       dec       r8d
       jns       short M11_L00
       jmp       near ptr M11_L09
M11_L01:
       mov       eax,r8d
       jmp       near ptr M11_L08
M11_L02:
       cmp       r8d,20
       jle       near ptr M11_L05
       movzx     r9d,dl
       vmovd     xmm0,r9d
       vpbroadcastb ymm0,xmm0
       lea       edx,[r8-20]
       movsxd    r9,edx
       add       r9,rcx
M11_L03:
       vpcmpeqb  ymm1,ymm0,[r9]
       vptest    ymm1,ymm1
       jne       short M11_L04
       add       r9,0FFFFFFFFFFFFFFE0
       cmp       r9,rcx
       jae       short M11_L03
       mov       r9d,r8d
       mov       r8d,r9d
       test      r8b,1F
       je        near ptr M11_L09
       vpcmpeqb  ymm1,ymm0,[rcx]
       vptest    ymm1,ymm1
       je        near ptr M11_L09
       vpmovmskb ecx,ymm1
       xor       eax,eax
       lzcnt     eax,ecx
       neg       eax
       add       eax,1F
       jmp       near ptr M11_L08
       nop       word ptr [rax+rax]
M11_L04:
       mov       rax,r9
       sub       rax,rcx
       mov       ecx,eax
       vpmovmskb eax,ymm1
       lzcnt     eax,eax
       neg       eax
       lea       eax,[rcx+rax+1F]
       jmp       short M11_L08
M11_L05:
       movzx     r9d,dl
       vmovd     xmm0,r9d
       vpbroadcastb xmm0,xmm0
       lea       eax,[r8-10]
       cdqe
       add       rax,rcx
M11_L06:
       vpcmpeqb  xmm1,xmm0,[rax]
       vptest    xmm1,xmm1
       jne       short M11_L07
       add       rax,0FFFFFFFFFFFFFFF0
       cmp       rax,rcx
       jae       short M11_L06
       mov       eax,r8d
       test      al,0F
       je        short M11_L09
       vpcmpeqb  xmm1,xmm0,[rcx]
       vptest    xmm1,xmm1
       je        short M11_L09
       vpmovmskb ecx,xmm1
       xor       eax,eax
       lzcnt     eax,ecx
       neg       eax
       add       eax,1F
       jmp       short M11_L08
M11_L07:
       sub       rax,rcx
       vpmovmskb edx,xmm1
       xor       r9d,r9d
       lzcnt     r9d,edx
       mov       ecx,r9d
       neg       ecx
       lea       eax,[rax+rcx+1F]
M11_L08:
       vzeroupper
       ret
M11_L09:
       mov       eax,0FFFFFFFF
       vzeroupper
       ret
       int       3
       int       3
       int       3
       int       3
       sbb       [rax],eax
       add       [rax],al
       add       [rax],al
       add       [rax],al
       (bad)
       cwde
       cli
       jg        short M11_L10
M11_L10:
       add       [rbp+48],dl
       mov       ebp,esp
       mov       [rbp+10],rcx
; Total bytes of code 344
```

수정본

파일 열기

```assembly
; System.SpanHelpers.LastIndexOfValueType[[System.Byte, System.Private.CoreLib],[System.SpanHelpers+DefaultEqualityComparer`1[[System.Byte, System.Private.CoreLib]], System.Private.CoreLib]](Byte ByRef, Byte, Int32)
       vzeroupper
       cmp       r8d,10
       jge       short M11_L02
       dec       r8d
       js        near ptr M11_L09
       movzx     r9d,dl
       nop       word ptr [rax+rax]
M11_L00:
       movsxd    rax,r8d
       movzx     eax,byte ptr [rcx+rax]
       cmp       eax,r9d
       je        short M11_L01
       dec       r8d
       jns       short M11_L00
       jmp       near ptr M11_L09
M11_L01:
       mov       eax,r8d
       jmp       near ptr M11_L08
M11_L02:
       cmp       r8d,20
       jl        near ptr M11_L05
       movzx     r9d,dl
       vmovd     xmm0,r9d
       vpbroadcastb ymm0,xmm0
       lea       edx,[r8-20]
       movsxd    r9,edx
       add       r9,rcx
M11_L03:
       vpcmpeqb  ymm1,ymm0,[r9]
       vptest    ymm1,ymm1
       jne       short M11_L04
       add       r9,0FFFFFFFFFFFFFFE0
       cmp       r9,rcx
       jae       short M11_L03
       mov       r9d,r8d
       mov       r8d,r9d
       test      r8b,1F
       je        near ptr M11_L09
       vpcmpeqb  ymm1,ymm0,[rcx]
       vptest    ymm1,ymm1
       je        near ptr M11_L09
       vpmovmskb ecx,ymm1
       xor       eax,eax
       lzcnt     eax,ecx
       neg       eax
       add       eax,1F
       jmp       near ptr M11_L08
       nop       word ptr [rax+rax]
M11_L04:
       mov       rax,r9
       sub       rax,rcx
       mov       ecx,eax
       vpmovmskb eax,ymm1
       lzcnt     eax,eax
       neg       eax
       lea       eax,[rcx+rax+1F]
       jmp       short M11_L08
M11_L05:
       movzx     r9d,dl
       vmovd     xmm0,r9d
       vpbroadcastb xmm0,xmm0
       lea       eax,[r8-10]
       cdqe
       add       rax,rcx
M11_L06:
       vpcmpeqb  xmm1,xmm0,[rax]
       vptest    xmm1,xmm1
       jne       short M11_L07
       add       rax,0FFFFFFFFFFFFFFF0
       cmp       rax,rcx
       jae       short M11_L06
       mov       eax,r8d
       test      al,0F
       je        short M11_L09
       vpcmpeqb  xmm1,xmm0,[rcx]
       vptest    xmm1,xmm1
       je        short M11_L09
       vpmovmskb ecx,xmm1
       xor       eax,eax
       lzcnt     eax,ecx
       neg       eax
       add       eax,1F
       jmp       short M11_L08
M11_L07:
       sub       rax,rcx
       vpmovmskb edx,xmm1
       xor       r9d,r9d
       lzcnt     r9d,edx
       mov       ecx,r9d
       neg       ecx
       lea       eax,[rax+rcx+1F]
M11_L08:
       vzeroupper
       ret
M11_L09:
       mov       eax,0FFFFFFFF
       vzeroupper
       ret
       int       3
       int       3
       int       3
       int       3
       sbb       [rax],eax
       add       [rax],al
       add       [rax],al
       add       [rax],al
       push      0FFFFFFFFFA9896CC
       jg        short M11_L10
M11_L10:
       add       [rbp+48],dl
       mov       ebp,esp
       mov       [rbp+10],rcx
; Total bytes of code 344
```