patched and assembled aarch64 add

Author: atar13

tests/binaries/add_aarch64_assembled.out

@@ -0,0 +1,18 @@
+sub sp, sp, -32
+str lr, [sp, 24]
+str x5, [sp, 16]
+add w5, wsp, 32
+mov x12, 3
+str w12, [x5, -20]
+mov x12, 4
+str w12, [x5, -24]
+ldr w12, [x5, -20]
+add x11, x12, 0
+ldr w12, [x5, -24]
+add w12, w11, w12
+sxtw x12, w12
+add x7, x12, 0
+ldr lr, [sp, 24]
+ldr x5, [sp, 16]
+add sp, sp, 32
+blr lr