feat: beta compiling to fasm (codegen) + hello world example let's goooo

test.asm

@@ -1,16 +1,39 @@
 format ELF64
 
-section ".text" executable
-
-public main
+section '.text' executable
 
 extrn 'putchar' as __putchar
 putchar = PLT __putchar
 
+public main
+
 main:
-    mov rdi, 69
+    ; create stack frame
+    push rbp
+    mov  rbp, rsp
+    sub  rsp, 8         ; space for locals: a (4 bytes), b (4 bytes)
+
+    ; t0 = LOAD_CONST 34
+    mov  dword [rbp-4], 34      ; STORE "a", t0
+
+    ; t1 = LOAD_CONST 35
+    mov  dword [rbp-8], 35      ; STORE "b", t1
+
+    ; t2 = LOAD "a"
+    mov  eax, [rbp-4]
+
+    ; t3 = LOAD "b"
+    mov  ecx, [rbp-8]
+
+    ; t4 = ADD t2, t3
+    add  eax, ecx               ; eax = t4
+
+    ; PARAM t4  → first arg in EDI
+    mov  edi, eax
+
+    ; t5 = CALL putchar
     call putchar
-    mov rdi, 10
-    call putchar
-    mov rax, 0
-    ret
+
+    ; function return (SysV: rax contains return value from putchar)
+    leave
+    ret