From 132d3236bb884433bf94e961f6d32264e0334aec Mon Sep 17 00:00:00 2001
From: ornitorrincos
Date: Tue, 18 Aug 2026 12:15:05 +0200
Subject: 

---
 kernel/loader.s | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 kernel/loader.s

(limited to 'kernel/loader.s')

diff --git a/kernel/loader.s b/kernel/loader.s
new file mode 100644
index 0000000..791c231
--- /dev/null
+++ b/kernel/loader.s
@@ -0,0 +1,32 @@
+global loader
+extern kmain
+
+section .text
+align 4
+STACKSIZE equ 0x4000
+
+
+loader:
+    ;setup the stack and call the kernel entry point
+    ; shouldn't really use it this way, but take the loading address and move that to rsp to get a working stack
+    mov rsp, stack+STACKSIZE
+    mov rbp, rsp
+
+    ; enable FPU, SSE    
+    mov rax, cr0
+    and ax, 0xFFFB
+    or ax, 0x2
+    mov cr0, rax
+    mov rax, cr4
+    or ax, 3 << 9 ; OSFXSR OSXMMEXCPT
+    mov cr4, rax
+
+    ; pass arguments we receiver, or maybe have to get them first fropm the stack
+    call kmain
+    hlt 
+
+
+section .bss
+align 32
+stack:
+    resb STACKSIZE
-- 
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