Visual Studio コンソールアプリをアセンブルしてみた

環境

Windows 11 Pro (64bit)
Visual Studio Community 2022

Cをアセンブリ出力

Cをアセンブリ出力して参考にする。

バッチファイル

dev32crt.bat

@echo off
path %path%;D:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.34.31933\bin\Hostx64\x86
set include=%include%;D:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.34.31933\include
set include=%include%;C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\shared
set include=%include%;C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\ucrt
set include=%include%;C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\um
set lib=%lib%;D:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.34.31933\lib\x86
set lib=%lib%;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.19041.0\ucrt\x86
set lib=%lib%;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.19041.0\um\x86
cmd

Cソース

hello_c.c

/*
cl /MD /FAscu hello_c.c
*/
#include <windows.h>

int main()
{
	static char buf[] = "hello, world\r\n";
	static HANDLE hConOut;

	hConOut = GetStdHandle(STD_OUTPUT_HANDLE);
	WriteConsole(hConOut, buf, sizeof buf, NULL, NULL);
	ExitProcess(0);
}

実行例

D:\Projects\msvc>cl /MD /FAscu hello_c.c
Microsoft(R) C/C++ Optimizing Compiler Version 19.34.31935 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.

hello_c.c
Microsoft (R) Incremental Linker Version 14.34.31935.0
Copyright (C) Microsoft Corporation.  All rights reserved.

/out:hello_c.exe
hello_c.obj

D:\Projects\msvc>hello_c
hello, world

D:\Projects\msvc>

アセンブリ出力

抜粋

hello_c.cod

; 11   : 	hConOut = GetStdHandle(STD_OUTPUT_HANDLE);

  00003	6a f5		 push	 -11			; fffffff5H
  00005	ff 15 00 00 00
	00		 call	 DWORD PTR __imp__GetStdHandle@4
  0000b	a3 00 00 00 00	 mov	 DWORD PTR ?hConOut@?1??main@@9@9, eax

アセンブラ

バッチファイル

dev32.bat

@echo off
path %path%;D:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.34.31933\bin\Hostx64\x86
set lib=%lib%;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.19041.0\um\x86
cmd

アセンブリ ソース

hello.asm

comment *
ml /c hello.asm
link /subsystem:console hello
*
includelib kernel32

.model flat

NULL equ 0
STD_OUTPUT_HANDLE equ -11

ExitProcess proto stdcall :dword
GetStdHandle proto stdcall :dword
WriteConsoleA proto stdcall :dword,:dword,:dword,:dword,:dword

.const
buf	db	'hello, world',0dh,0ah,0
len	equ	$ - buf

.data?
hConOut	dd	?

.code
start proc c
	invoke	GetStdHandle, STD_OUTPUT_HANDLE
	mov	hConOut, eax
	invoke	WriteConsoleA, hConOut, addr buf, len, NULL, NULL
	invoke	ExitProcess, 0
start endp

end start

実行例

D:\Projects\msvc>ml /c hello.asm
Microsoft (R) Macro Assembler Version 14.34.31935.0
Copyright (C) Microsoft Corporation.  All rights reserved.

 Assembling: hello.asm

D:\Projects\msvc>link /subsystem:console hello
Microsoft (R) Incremental Linker Version 14.34.31935.0
Copyright (C) Microsoft Corporation.  All rights reserved.


D:\Projects\msvc>hello
hello, world

D:\Projects\msvc>