From b17a0a41bea7789178919f4a0999ea8519e1f897 Mon Sep 17 00:00:00 2001
From: natrixaeria <upezu@student.kit.edu>
Date: Sat, 9 Nov 2019 04:44:04 +0100
Subject: Introduce integration test crate

---
 kernel/src/asm/long_mode_init.asm | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 kernel/src/asm/long_mode_init.asm

(limited to 'kernel/src/asm/long_mode_init.asm')

diff --git a/kernel/src/asm/long_mode_init.asm b/kernel/src/asm/long_mode_init.asm
new file mode 100644
index 0000000..8c1b1e7
--- /dev/null
+++ b/kernel/src/asm/long_mode_init.asm
@@ -0,0 +1,19 @@
+global long_mode_start
+
+section .text
+bits 64
+long_mode_start:
+	; load 0 into all data segment registers
+    mov ax, 0
+    mov ss, ax
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+
+    ; print `Uff!` to screen
+    mov rax, 0x8521846683668255
+    mov qword [0xb8000], rax
+
+	extern _start
+	jmp _start
-- 
cgit v1.2.3-54-g00ecf