From 20834dcc57537cd95260a4a22f5d91a027adfd35 Mon Sep 17 00:00:00 2001
From: Carlos Maiolino <cem@maiolino.dev>
Date: Thu, 10 Jul 2025 22:20:01 +0200
Subject: Add x86_64 asm

Signed-off-by: Carlos Maiolino <cem@toxiclabs.cc>
---
 x86_64/reg_size.s | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 x86_64/reg_size.s

(limited to 'x86_64/reg_size.s')

diff --git a/x86_64/reg_size.s b/x86_64/reg_size.s
new file mode 100644
index 0000000..e374922
--- /dev/null
+++ b/x86_64/reg_size.s
@@ -0,0 +1,17 @@
+# Program to play around with different register sizes
+
+.set exit_num, 60
+
+.section .text
+.globl _start
+
+_start:
+	movw	$0b0000101000000101, %bx  #10d and 5d into high and low registers
+	addb	%bh, %bl
+	movb	$0, %bh
+
+	# %bh now contains 10+5, use it as an argument to exit()
+
+	movq	%rbx, %rdi
+	movq	$exit_num, %rax
+	syscall
-- 
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