Assembly Language for Beginners

(nextflipdebug2) #1

8.4. HACKING WINDOWS CLOCK


.text:6EB9DBD4 push edi
.text:6EB9DBD5 cdq
.text:6EB9DBD6 push 3Ch
.text:6EB9DBD8 mov esi, ecx
.text:6EB9DBDA pop ecx
.text:6EB9DBDB idiv ecx
.text:6EB9DBDD push 2
.text:6EB9DBDF lea ebx, table[edx8]
.text:6EB9DBE6 lea eax, [edx+1Eh]
.text:6EB9DBE9 cdq
.text:6EB9DBEA idiv ecx
.text:6EB9DBEC mov ecx, [ebp+arg_0]
.text:6EB9DBEF mov [ebp+var_4], ebx
.text:6EB9DBF2 lea eax, table[edx
8]
.text:6EB9DBF9 mov [ebp+arg_4], eax
.text:6EB9DBFC call ?SetInterpolationMode@Graphics@Gdiplus@@QAE?⤦
ÇAW4Status@2@W4InterpolationMode@2@@Z ; Gdiplus::Graphics::SetInterpolationMode(Gdiplus::⤦
ÇInterpolationMode)
.text:6EB9DC01 mov eax, [esi+70h]
.text:6EB9DC04 mov edi, [ebp+arg_8]
.text:6EB9DC07 mov [ebp+var_10], eax
.text:6EB9DC0A mov eax, [esi+74h]
.text:6EB9DC0D mov [ebp+var_C], eax
.text:6EB9DC10 mov eax, [edi]
.text:6EB9DC12 sub eax, [edi+8]
.text:6EB9DC15 push 8000 ; nDenominator
.text:6EB9DC1A push eax ; nNumerator
.text:6EB9DC1B push dword ptr [ebx+4] ; nNumber
.text:6EB9DC1E mov ebx, ds:impMulDiv@12 ; MulDiv(x,x,x)
.text:6EB9DC24 call ebx ; MulDiv(x,x,x) ; MulDiv(x,x,x)
.text:6EB9DC26 add eax, [esi+74h]
.text:6EB9DC29 push 8000 ; nDenominator
.text:6EB9DC2E mov [ebp+arg_8], eax
.text:6EB9DC31 mov eax, [edi]
.text:6EB9DC33 sub eax, [edi+8]
.text:6EB9DC36 push eax ; nNumerator
.text:6EB9DC37 mov eax, [ebp+var_4]
.text:6EB9DC3A push dword ptr [eax] ; nNumber
.text:6EB9DC3C call ebx ; MulDiv(x,x,x) ; MulDiv(x,x,x)
.text:6EB9DC3E add eax, [esi+70h]
.text:6EB9DC41 mov ecx, [ebp+arg_0]
.text:6EB9DC44 mov [ebp+var_8], eax
.text:6EB9DC47 mov eax, [ebp+arg_8]
.text:6EB9DC4A mov [ebp+var_4], eax
.text:6EB9DC4D lea eax, [ebp+var_8]
.text:6EB9DC50 push eax
.text:6EB9DC51 lea eax, [ebp+var_10]
.text:6EB9DC54 push eax
.text:6EB9DC55 push [ebp+arg_C]
.text:6EB9DC58 call ?DrawLine@Graphics@Gdiplus@@QAE?⤦
ÇAW4Status@2@PBVPen@2@ABVPoint@2@1@Z ; Gdiplus::Graphics::DrawLine(Gdiplus::Pen const *,⤦
ÇGdiplus::Point const &,Gdiplus::Point const &)
.text:6EB9DC5D mov ecx, [edi+8]
.text:6EB9DC60 test ecx, ecx
.text:6EB9DC62 jbe short loc_6EB9DCAA
.text:6EB9DC64 test eax, eax
.text:6EB9DC66 jnz short loc_6EB9DCAA
.text:6EB9DC68 mov eax, [ebp+arg_4]
.text:6EB9DC6B push 8000 ; nDenominator
.text:6EB9DC70 push ecx ; nNumerator
.text:6EB9DC71 push dword ptr [eax+4] ; nNumber
.text:6EB9DC74 call ebx ; MulDiv(x,x,x) ; MulDiv(x,x,x)
.text:6EB9DC76 add eax, [esi+74h]
.text:6EB9DC79 push 8000 ; nDenominator
.text:6EB9DC7E push dword ptr [edi+8] ; nNumerator
.text:6EB9DC81 mov [ebp+arg_8], eax
.text:6EB9DC84 mov eax, [ebp+arg_4]
.text:6EB9DC87 push dword ptr [eax] ; nNumber
.text:6EB9DC89 call ebx ; MulDiv(x,x,x) ; MulDiv(x,x,x)
.text:6EB9DC8B add eax, [esi+70h]

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