pop ss, mov ss, x and sti disable irqs for the next instruction - began dispatch optimization by adding new x86 cpu 'hidden' flags

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@372 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 10 insertions, 0 deletions

diff --git a/op-i386.c b/op-i386.c
index 833b1f9d38..7b0c3917ac 100644
--- a/op-i386.c
+++ b/op-i386.c
@@ -457,6 +457,16 @@ void OPPROTO op_sti(void)
     env->eflags |= IF_MASK;
 }
 
+void OPPROTO op_set_inhibit_irq(void)
+{
+    env->hflags |= HF_INHIBIT_IRQ_MASK;
+}
+
+void OPPROTO op_reset_inhibit_irq(void)
+{
+    env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+}
+
 #if 0
 /* vm86plus instructions */
 void OPPROTO op_cli_vm(void)