From 50e526d72f1fd9cb895d743a1353b54505b48025 Mon Sep 17 00:00:00 2001
From: Nathan Lee <me@nwlee.tech>
Date: Sun, 20 Sep 2026 21:12:49 -0500
Subject: add x86 support

---
 kernel/x86/uart.S | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 kernel/x86/uart.S

(limited to 'kernel/x86/uart.S')

diff --git a/kernel/x86/uart.S b/kernel/x86/uart.S
new file mode 100644
index 0000000..416fad2
--- /dev/null
+++ b/kernel/x86/uart.S
@@ -0,0 +1,18 @@
+.section .text
+
+.global outb
+.global inb
+
+# void outb(uint16_t port, uint8_t val)
+outb:
+    mov %dl, %al
+    mov %cx, %dx
+    outb %al, %dx
+    ret
+
+# uint8_t inb(uint16_t port)
+inb:
+    mov %cx, %dx
+    inb %dx, %al
+    ret
+
-- 
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