wth?

a_test_addition.txt

@@ -0,0 +1,9 @@
+
+
+Suppose this is like a piece of code that I'm adding to the repository. This is version 1.
+
+I'm adding stuff. Lots of stuff. just piling it in.
+
+Suppose I make a mistake during some commit?
+
+git reset --soft HEAD~1 isn't really undoing the addition of the mistake line?

assemblyexample1.asm

@@ -0,0 +1,30 @@
+
+.global _start
+    //exposes a symbol called start to the assembler
+.intel_syntax noprefix
+
+//See: https://www.youtube.com/watch?v=6S5KRJv-7RU
+//See: https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
+
+_start:
+    //write call (sys_write)
+    mov rax,1
+        //sys_write system call
+    mov rdi, 1
+        //unsigned int fd = 1 (stdout)
+    lea rsi,[hello_world]
+        //load effective address (lea) into rsi of hello_world data
+    mov rdx, 14
+        //size_t count excluding null terminator
+    syscall
+
+    //exit call
+    mov rax, 60
+    mov rdi, 33 
+    //return result (must be "rdi" not "rdx" - how are these registers named?)
+    syscall 
+    //apprently int 80h interrupt is also syscall?
+
+hello_world:
+    .asciz "Hello, World!\n"
+

assemblytutorial.txt

@@ -0,0 +1,24 @@
+https://www.youtube.com/watch?v=6S5KRJv-7RU
+
+rdi
+rsi
+r8
+r - 64 bit pointer
+
+mov rdi,8
+mov rdi,rsi
+
+memory operations
+
+mov rdi, qword ptr[rsi]  values from memory into register
+mov qword ptr[rsi], rdi  store into memory operation
+
+https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
+
+
+Compilation:
+    as -c assemblyexample1.asm -o assemblyexample1.o
+    gcc assemblyexample1.o -o assemblyexample1 -nostdlib -static
+
+Check error code:
+    echo $?

csharphelloworld.cs

@@ -0,0 +1,18 @@
+// https://www.geeksforgeeks.org/how-to-compile-decompile-and-run-c-code-in-linux/
+//
+// Use mcs compiler to create a windows executable csharphelloworld.exe from csharphelloworld.cs
+//
+// mcs -out:csharphelloworld.exe csharphelloworld.cs
+// mono csharphelloworld.exe
+
+using System;
+ 
+public class GFG {
+ 
+    static public void Main()
+    {
+        Console.WriteLine("Hello World!");
+        Console.ReadKey();
+      
+    }
+}

csharphelloworld.decomp.cs

@@ -0,0 +1,50 @@
+.assembly extern mscorlib
+{
+  .ver 4:0:0:0
+  .publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .z\V.4..
+}
+.assembly 'csharphelloworld'
+{
+  .custom instance void class [mscorlib]System.Runtime.CompilerServices.RuntimeCompatibilityAttribute::'.ctor'() =  (
+		01 00 01 00 54 02 16 57 72 61 70 4E 6F 6E 45 78   // ....T..WrapNonEx
+		63 65 70 74 69 6F 6E 54 68 72 6F 77 73 01       ) // ceptionThrows.
+
+  .hash algorithm 0x00008004
+  .ver  0:0:0:0
+}
+.module csharphelloworld.exe // GUID = {D5E6E53D-50CA-452F-AED9-6A961E988718}
+
+
+  .class public auto ansi beforefieldinit GFG
+  	extends [mscorlib]System.Object
+  {
+
+    // method line 1
+    .method public hidebysig specialname rtspecialname 
+           instance default void '.ctor' ()  cil managed 
+    {
+        // Method begins at RVA 0x2050
+	// Code size 7 (0x7)
+	.maxstack 8
+	IL_0000:  ldarg.0 
+	IL_0001:  call instance void object::'.ctor'()
+	IL_0006:  ret 
+    } // end of method GFG::.ctor
+
+    // method line 2
+    .method public static hidebysig 
+           default void Main ()  cil managed 
+    {
+        // Method begins at RVA 0x2058
+	.entrypoint
+	// Code size 17 (0x11)
+	.maxstack 8
+	IL_0000:  ldstr "Hello World!"
+	IL_0005:  call void class [mscorlib]System.Console::WriteLine(string)
+	IL_000a:  call valuetype [mscorlib]System.ConsoleKeyInfo class [mscorlib]System.Console::ReadKey()
+	IL_000f:  pop 
+	IL_0010:  ret 
+    } // end of method GFG::Main
+
+  } // end of class GFG
+

csharphelloworld.txt

@@ -0,0 +1,10 @@
+https://www.geeksforgeeks.org/how-to-compile-decompile-and-run-c-code-in-linux/
+
+Use mcs compiler to create a windows executable csharphelloworld.exe from csharphelloworld.cs
+
+mcs -out:csharphelloworld.exe csharphelloworld.cs
+mono csharphelloworld.exe
+
+To decompile this executable file run the following command:
+
+monodis --output=csharphelloworld.decomp.cs csharphelloworld.exe

test.txt

@@ -3,3 +3,9 @@ I've added this new thing
 a new addition
 
 Added a third line
+
+a third line
+
+A fourth line
+An alternate fourth line.
+

test_repo.code-workspace

@@ -0,0 +1,7 @@
+{
+	"folders": [
+		{
+			"path": "./"
+		}
+	]
+}