Changeset 13708

Timestamp:

10/31/08 11:26:14 (2 months ago)

Author:

vboxsync

Message:

Skip the TB flush as that's rather expensive and not necessary for single instruction emulation.

Files:

• trunk/src/recompiler/VBoxRecompiler.c (modified) (2 diffs)
• trunk/src/recompiler_new/VBoxRecompiler.c (modified) (1 diff)

trunk/src/recompiler/VBoxRecompiler.c

@@ -730 +730 @@
-REMR3DECL(int) REMR3EmulateInstruction(PVM pVM)
-{
+    bool fFlushTBs;
+
-    Log2(("REMR3EmulateInstruction: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
-
@@ -738 +740 @@
-        pVM->rem.s.Env.state |= CPU_RAW_HWACC;
-
+    /* Skip the TB flush as that's rather expensive and not necessary for single instruction emulation. */
+    fFlushTBs = pVM->rem.s.fFlushTBs;
+    pVM->rem.s.fFlushTBs = false;
+
-    /*
-     * Sync the state and enable single instruction / single stepping.
-     */
-    int rc = REMR3State(pVM);
+    pVM->rem.s.fFlushTBs = fFlushTBs;
-    if (VBOX_SUCCESS(rc))
-    {

trunk/src/recompiler_new/VBoxRecompiler.c

@@ -731 +731 @@
-        pVM->rem.s.Env.state |= CPU_RAW_HWACC;
-
+    /* Skip the TB flush as that's rather expensive and not necessary for single instruction emulation. */
+    fFlushTBs = pVM->rem.s.fFlushTBs;
+    pVM->rem.s.fFlushTBs = false;
+
-    /*
-     * Sync the state and enable single instruction / single stepping.
-     */
-    rc = REMR3State(pVM);
+    pVM->rem.s.fFlushTBs = fFlushTBs;
-    if (VBOX_SUCCESS(rc))
-    {