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authorAnton Kling <anton@kling.gg>2023-10-30 22:12:14 +0100
committerAnton Kling <anton@kling.gg>2023-10-31 00:18:38 +0100
commit8a9208612eec8ddae4c418485d848ecfa0613699 (patch)
tree2f4b29200c2f0c19ae52f45bdb9b38a41b356e30 /kernel/process.s
parentca76600acc8bf7a02346efa5bd8f17072210ec01 (diff)
Meta: Move kernel and userland to their own folders.
This is to allow both the kernel and the userland to share certain header files and to make the folder structure a bit more clear.
Diffstat (limited to 'kernel/process.s')
-rw-r--r--kernel/process.s33
1 files changed, 33 insertions, 0 deletions
diff --git a/kernel/process.s b/kernel/process.s
new file mode 100644
index 0000000..24e1869
--- /dev/null
+++ b/kernel/process.s
@@ -0,0 +1,33 @@
+.intel_syntax noprefix
+.global copy_page_physical
+.global loop_m
+copy_page_physical:
+ push ebx
+ pushf
+
+ cli
+
+ mov ebx, [esp+12]
+ mov ecx, [esp+16]
+
+ mov edx, cr0
+ and edx, 0x7fffffff
+ mov cr0, edx
+
+ mov edx, 1024
+
+.loop:
+ mov eax, [ebx]
+ mov [ecx], eax
+ add ebx, 4
+ add ecx, 4
+ dec edx
+ jnz .loop
+
+ mov edx, cr0
+ or edx, 0x80000000
+ mov cr0, edx
+
+ popf
+ pop ebx
+ ret