diff options
Diffstat (limited to 'arch/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/switch_thread.s | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/i386/kernel/switch_thread.s b/arch/i386/kernel/switch_thread.s new file mode 100644 index 0000000..f1168d5 --- /dev/null +++ b/arch/i386/kernel/switch_thread.s @@ -0,0 +1,28 @@ +.global switch_thread +.type switch_thread, @function +switch_thread: + pushl %ebp + movl %esp, %ebp + + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + + movl 8(%ebp), %esi + movl 12(%ebp), %edi + + movl %esp, (%edi); + movl %cr3, %ecx + movl %ecx, 4(%edi) + + movl (%esi), %esp + movl 4(%esi), %ecx + movl %ecx, %cr3 + + popl %ebp + popl %edi + popl %esi + popl %ebx + popl %ebp + ret |