[aandrejevic] 64671: [FAST486] Revert the previous fix and fix it again, but properly.

Author: aandrejevic
Date: Sat Oct 11 14:40:53 2014
New Revision: 64671

URL: http://svn.reactos.org/svn/reactos?rev=64671&view=rev
Log:
[FAST486]
Revert the previous fix and fix it again, but properly.


Modified:
    trunk/reactos/lib/fast486/fpu.c

Modified: trunk/reactos/lib/fast486/fpu.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/fpu.c?rev=6467…
==============================================================================
--- trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] (original)
+++ trunk/reactos/lib/fast486/fpu.c	[iso-8859-1] Sat Oct 11 14:40:53 2014
@@ -511,10 +511,10 @@
     else
     {
         /* Only a few of these instructions have any meaning on a 487 */
-        switch ((ModRegRm.SecondRegister << 3) | ModRegRm.Register)
+        switch ((ModRegRm.Register << 3) | ModRegRm.SecondRegister)
         {
             /* FCLEX */
-            case 0x42:
+            case 0x22:
             {
                 /* Clear exception data */
                 State->FpuStatus.Ie =
@@ -531,7 +531,7 @@
             }
 
             /* FINIT */
-            case 0x43:
+            case 0x23:
             {
                 /* Restore the state */
                 State->FpuControl.Value = FAST486_FPU_DEFAULT_CONTROL;
@@ -542,9 +542,9 @@
             }
 
             /* FENI */
-            case 0x40:
+            case 0x20:
             /* FDISI */
-            case 0x41:
+            case 0x21:
             {
                 /* These do nothing */
                 break;