Changeset 6055 for trunk/src

Timestamp:

Jun 21, 2001, 5:11:40 PM (24 years ago)

Author:

bird

Message:

All functions changed EBX without saving it.

File:

• trunk/src/ddraw/iccio1.asm (modified) (3 diffs)

trunk/src/ddraw/iccio1.asm

@@ -230 +230 @@
 
         ; now use this function to raise the IOPL
-  MOV  EBX,13    ; special function code
+  PUSH  EBX                             ; bird fix
+  MOV   EBX,13    ; special function code
   CALL  FWORD PTR [ioentry]  ; CALL intersegment indirect 16:32
+  POP   EBX                             ; bird fix
 
   ; thread should now be running at IOPL=3
@@ -251 +253 @@
 
         ; now use this function to raise the IOPL
-  MOV  EBX,13    ; special function code
+  PUSH  EBX                             ; bird fix
+  MOV   EBX,13    ; special function code
   CALL  FWORD PTR [ioentry]  ; CALL intersegment indirect 16:32
+  POP   EBX                             ; bird fix
 
   XOR  EAX, EAX  ; return code = 0
@@ -268 +272 @@
   JZ  exerr    ; no gdt entry, so process cannot be at IOPL=3
         ; through this mechanism
-
-  MOV  EBX, 14    ; function code to disable iopl
+  PUSH  EBX                             ; bird fix
+  MOV   EBX, 14    ; function code to disable iopl
   CALL  FWORD PTR [ioentry]  ; call intersegment indirect 16:32
+  POP   EBX                             ; bird fix
 
   ; process should now be at IOPL=3 again