From 439d724ce5939cab7a5c858d1829f212e01e0402 Mon Sep 17 00:00:00 2001
From: Franklin Wei <frankhwei536@gmail.com>
Date: Sun, 1 Feb 2015 11:33:16 -0500
Subject: first real commit

---
 kernel/gdt-as.S | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 kernel/gdt-as.S

(limited to 'kernel/gdt-as.S')

diff --git a/kernel/gdt-as.S b/kernel/gdt-as.S
new file mode 100644
index 0000000..7283dc8
--- /dev/null
+++ b/kernel/gdt-as.S
@@ -0,0 +1,16 @@
+        .global gdt_flush
+        .type gdt_flush, @function
+gdt_flush: # prototype: void gdt_flush(uint32_t addr)
+        cli
+        movl 4(%esp), %eax # load the address off the stack (first param)
+        lgdt (%eax)
+        mov $0x10, %ax
+        mov %ax, %ds
+        mov %ax, %es
+        mov %ax, %fs
+        mov %ax, %gs
+        mov %ax, %ss
+        sti
+        jmp .flush
+.flush:
+        ret
-- 
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