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34 lines
857 B
34 lines
857 B
2 years ago
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; Hello World for Win64 Intel x64 Assembly
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;
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; by fruel (https://github.com/fruel)
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; 13 June 2016
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; ---------------------------------------------
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GetStdHandle PROTO
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ExitProcess PROTO
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WriteConsoleA PROTO
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.data
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msg BYTE "Hello World!",0
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bytesWritten DWORD ?
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.code
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mainCRTStartup proc
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sub rsp, 5 * 8 ; reserve shadow space
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mov rcx, -11 ; nStdHandle (STD_OUTPUT_HANDLE)
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call GetStdHandle
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mov rcx, rax ; hConsoleOutput
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lea rdx, msg ; *lpBuffer
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mov r8, LENGTHOF msg - 1 ; nNumberOfCharsToWrite
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lea r9, bytesWritten ; lpNumberOfCharsWritten
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mov QWORD PTR [rsp + 4 * SIZEOF QWORD], 0 ; lpReserved
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call WriteConsoleA
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mov rcx, 0 ; uExitCode
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call ExitProcess
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mainCRTStartup endp
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END
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