From 8a8ae2d6e901169e0c0c597e3945aa6872e21404 Mon Sep 17 00:00:00 2001
From: fruel <lukas.fruhstuck@gmail.com>
Date: Mon, 13 Jun 2016 21:59:48 +0200
Subject: [PATCH] Added Win32 and Win64 ASM Hello World

---
 a/assembler_masm_win32.asm | 35 +++++++++++++++++++++++++++++++++++
 a/assembler_masm_win64.asm | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 a/assembler_masm_win32.asm
 create mode 100644 a/assembler_masm_win64.asm

diff --git a/a/assembler_masm_win32.asm b/a/assembler_masm_win32.asm
new file mode 100644
index 00000000..1a08af6b
--- /dev/null
+++ b/a/assembler_masm_win32.asm
@@ -0,0 +1,35 @@
+; ---------------------------------------------
+; Hello World for Win32 Intel x86 Assembly
+;
+; by fruel (https://github.com/fruel)
+; 13 June 2016
+; ---------------------------------------------
+
+.386
+.model flat,stdcall
+.stack 4096
+
+EXTRN ExitProcess@4 : PROC
+EXTRN GetStdHandle@4 : PROC
+EXTRN WriteConsoleA@20 : PROC
+
+.data
+msg BYTE "Hello World!",0
+bytesWritten DWORD ?
+
+.code
+main PROC
+    push -11                 ; nStdHandle (STD_OUTPUT_HANDLE)
+    call GetStdHandle@4
+ 
+    push 0                   ; lpReserved
+    push OFFSET bytesWritten ; lpNumberOfCharsWritten
+    push LENGTHOF msg - 1    ; nNumberOfCharsToWrite
+    push OFFSET msg          ; *lpBuffer
+    push eax                 ; hConsoleOutput
+    call WriteConsoleA@20
+
+    push 0                   ; uExitCode
+    call ExitProcess@4
+main ENDP
+END main
diff --git a/a/assembler_masm_win64.asm b/a/assembler_masm_win64.asm
new file mode 100644
index 00000000..9a4f1a0d
--- /dev/null
+++ b/a/assembler_masm_win64.asm
@@ -0,0 +1,33 @@
+; ---------------------------------------------
+; Hello World for Win64 Intel x64 Assembly
+;
+; by fruel (https://github.com/fruel)
+; 13 June 2016
+; ---------------------------------------------
+
+GetStdHandle PROTO
+ExitProcess PROTO
+WriteConsoleA PROTO
+
+.data
+msg BYTE "Hello World!",0
+bytesWritten DWORD ?
+
+.code
+main PROC
+    sub rsp, 5 * 8              ; reserve shadow space
+
+    mov rcx, -11                ; nStdHandle (STD_OUTPUT_HANDLE)
+    call GetStdHandle
+
+    mov  rcx, rax               ; hConsoleOutput
+    lea  rdx, msg               ; *lpBuffer
+    mov  r8, LENGTHOF msg - 1   ; nNumberOfCharsToWrite
+    lea  r9, bytesWritten       ; lpNumberOfCharsWritten
+    mov  QWORD PTR [rsp + 4 * SIZEOF QWORD], 0  ; lpReserved
+    call WriteConsoleA
+
+    mov rcx, 0                  ; uExitCode
+    call ExitProcess
+main ENDP
+END