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-rw-r--r--kernel.soso/task.asm39
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel.soso/task.asm b/kernel.soso/task.asm
new file mode 100644
index 00000000..f0f2b464
--- /dev/null
+++ b/kernel.soso/task.asm
@@ -0,0 +1,39 @@
+global switchTask
+
+switchTask:
+        mov esi, [esp]
+        pop eax			; *current thread
+
+        ; get values from thread->regs structure
+
+        push dword [esi+4]	; eax
+        push dword [esi+8]	; ecx
+        push dword [esi+12]	; edx
+        push dword [esi+16]	; ebx
+        push dword [esi+24]	; ebp
+        push dword [esi+28]	; esi
+        push dword [esi+32]	; edi
+        push dword [esi+48]	; ds
+        push dword [esi+50]	; es
+        push dword [esi+52]	; fs
+        push dword [esi+54]	; gs
+
+        mov al, 0x20
+        out 0x20, al
+
+        mov eax, [esi+56]
+        mov cr3, eax
+
+        pop gs
+        pop fs
+        pop es
+        pop ds
+        pop edi
+        pop esi
+        pop ebp
+        pop ebx
+        pop edx
+        pop ecx
+        pop eax
+
+        iret