From a3c5f8f5b847ee59641df498e0f9a3cc82d0fc37 Mon Sep 17 00:00:00 2001
From: stefan <stefan@315a16e6-25f9-4109-90ae-ca3045a26c18>
Date: Mon, 9 Aug 2010 17:49:18 +0000
Subject: [PATCH] - minor optimizations - we push only the required registers

git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@53 315a16e6-25f9-4109-90ae-ca3045a26c18
---
 arch/x86/kernel/entry.asm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/entry.asm b/arch/x86/kernel/entry.asm
index 84d41d39..8941848e 100644
--- a/arch/x86/kernel/entry.asm
+++ b/arch/x86/kernel/entry.asm
@@ -501,7 +501,9 @@ extern scheduler
 global reschedule
 reschedule:
     cli
-    pusha
+    ; eax could change across a function call
+    ; => we have not to save the original eax value
+    push ebx 
 
     push DWORD [current_task]
     call scheduler
@@ -519,7 +521,7 @@ hack1:
     jmp 0x00 : 0xDEADBEAF
 
 no_task_switch1:
-    popa
+    pop ebx
     sti
     ret