removing C code, opting to mess around in odin.

code/asm/hello_yasm.asm

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+; hello.asm - Hello World with debug symbols for YASM
+BITS 64                         ; Explicitly specify 64-bit mode
+DEFAULT REL                     ; Use RIP-relative addressing by default
+
+; Data section
+section .data
+    message db "Hello, x86-64 ASM!", 13, 10, 0  ; String with CRLF and null terminator
+    message_len equ $ - message                 ; Calculate string length
+
+; Code section
+section .text
+global main                    ; Export main symbol for linker
+extern ExitProcess            ; Import Windows API functions
+extern GetStdHandle
+extern WriteConsoleA
+
+main:
+	; Function prologue
+	push    rbp
+	mov     rbp, rsp
+	sub     rsp, 32              ; Shadow space for Windows API calls
+
+	; Get stdout handle
+	mov     ecx, -11            ; STD_OUTPUT_HANDLE
+	call    GetStdHandle
+	mov     rbx, rax            ; Save handle for WriteConsole
+
+	; Write message
+	mov     rcx,  rbx              ; Console handle
+	lea     rdx,  [message]        ; Message buffer
+	mov     r8d,  message_len      ; Message length
+	lea     r9,   [rsp+28]         ; Written chars (unused)
+	mov     qword [rsp+20],    0   ; Reserved (must be 0)
+	call    WriteConsoleA
+
+	; Exit program
+	xor     ecx, ecx            ; Exit code 0
+	call    ExitProcess
+
+	; Function epilogue (not reached due to ExitProcess)
+	leave
+	ret

code/asm/readme.md

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+# Handwritten assembly