From 43d92e30ad3743b8d0ce6593c17892fe1a78a1e8 Mon Sep 17 00:00:00 2001
From: EmulatedSeasons <89668582+EmulatedSeasons@users.noreply.github.com>
Date: Mon, 20 Jan 2025 18:23:02 -0500
Subject: moved limine.cpp stuff to kernel.cpp (and fixed framebuffer pixel
 drawing)

---
 kernel/arch/x86_64/arch_init.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 kernel/arch/x86_64/arch_init.cpp

(limited to 'kernel/arch/x86_64/arch_init.cpp')

diff --git a/kernel/arch/x86_64/arch_init.cpp b/kernel/arch/x86_64/arch_init.cpp
new file mode 100644
index 0000000..eb0e442
--- /dev/null
+++ b/kernel/arch/x86_64/arch_init.cpp
@@ -0,0 +1,19 @@
+#include "gdt.h"
+#include "idt.h"
+
+void arch_init() {
+    // setup gdt
+    SegDesc segs[5];
+    GDTR gdtr{sizeof(struct SegDesc) * 5 - 1, (uint64_t)&segs};
+
+    gdt_entry(&segs[0], 0, 0, 0, 0); // null desc
+    gdt_entry(&segs[1], 0, 0xFFFFF, 0x9A, 0xA); // kcode
+    gdt_entry(&segs[2], 0, 0xFFFFF, 0x92, 0xA); // kdata
+    gdt_entry(&segs[3], 0, 0xFFFFF, 0xFA, 0xA); // ucode
+    gdt_entry(&segs[4], 0, 0xFFFFF, 0xF2, 0xA); // udata
+    
+    load_gdt(&gdtr);
+    reload_segments();
+
+    setup_idt();
+}
\ No newline at end of file
-- 
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