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 $?

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": "./"
+		}
+	]
+}