[ion] 25938: - Fix a bug in HalEnableSystemInterrupt which was causing us to read invalid port data instead of the PCI edge/level registers. - Fix an offset bug which was causing us to read/write to DR7 in a completely random location (somewhere in side the _CONTEXT record). - Fix a bug in DR save/restore which was making us save dr0, 1, 2 isntead of dr3, 6, 7. - All bugs reported by Aleksey Bragin.

Author: ion
Date: Thu Mar  1 23:27:33 2007
New Revision: 25938

URL: http://svn.reactos.org/svn/reactos?rev=25938&view=rev
Log:
- Fix a bug in HalEnableSystemInterrupt which was causing us to read invalid port data instead of the PCI edge/level registers.
- Fix an offset bug which was causing us to read/write to DR7 in a completely random location (somewhere in side the _CONTEXT record).
- Fix a bug in DR save/restore which was making us save dr0,1,2 isntead of dr3,6,7.
- All bugs reported by Aleksey Bragin.

Modified:
    trunk/reactos/hal/halx86/generic/irq.S
    trunk/reactos/include/ndk/asm.h
    trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S

Modified: trunk/reactos/hal/halx86/generic/irq.S
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/hal/halx86/generic/irq.S?re...
==============================================================================
--- trunk/reactos/hal/halx86/generic/irq.S (original)
+++ trunk/reactos/hal/halx86/generic/irq.S Thu Mar  1 23:27:33 2007
@@ -247,7 +247,7 @@
     mov edx, 0x4D1
     in al, dx
     shl ax, 8
-    mov eax, 0x4D0
+    mov edx, 0x4D0
     in al, dx
     mov dx, 1
     shl dx, cl

Modified: trunk/reactos/include/ndk/asm.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/asm.h?rev=25938...
==============================================================================
--- trunk/reactos/include/ndk/asm.h (original)
+++ trunk/reactos/include/ndk/asm.h Thu Mar  1 23:27:33 2007
@@ -157,7 +157,7 @@
 #define KPRCB_DR2                               0x300
 #define KPRCB_DR3                               0x304
 #define KPRCB_DR6                               0x308
-#define KPRCB_DR7                               0x20C
+#define KPRCB_DR7                               0x30C
 #define KPRCB_TIMER_HAND                        0x964
 #define KPRCB_TIMER_REQUEST                     0x968

Modified: trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/i...
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S (original)
+++ trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S Thu Mar  1 23:27:33 2007
@@ -265,9 +265,9 @@
     mov [ebp+KTRAP_FRAME_DR2], edi

/* Get DR3, 6, 7 */
-    mov ebx, dr0
-    mov ecx, dr1
-    mov edi, dr2
+    mov ebx, dr3
+    mov ecx, dr6
+    mov edi, dr7

/* Save them */
     mov [ebp+KTRAP_FRAME_DR3], ebx