LDB/DPB do not check for negative indexes.

[sbcl.git] / src / assembly / x86 / assem-rtns.lisp

diff --git a/src/assembly/x86/assem-rtns.lisp b/src/assembly/x86/assem-rtns.lisp
index 1ef7ed0..9efecb9 100644 (file)
--- a/src/assembly/x86/assem-rtns.lisp
+++ b/src/assembly/x86/assem-rtns.lisp
@@ -236,7 +236,7 @@
       (emit-error-break nil error-trap
                         (error-number-or-lose 'unseen-throw-tag-error)
                         (list target)))
-    (inst or catch catch)               ; check for NULL pointer
+    (inst test catch catch)             ; check for NULL pointer
     (inst jmp :z error))
 
   (inst cmp target (make-ea-for-object-slot catch catch-block-tag-slot 0))
@@ -264,7 +264,7 @@
   (declare (ignore start count))
 
   (let ((error (generate-error-code nil 'invalid-unwind-error)))
-    (inst or block block)               ; check for NULL pointer
+    (inst test block block)             ; check for NULL pointer
     (inst jmp :z error))
 
   (load-tl-symbol-value uwp *current-unwind-protect-block*)
@@ -309,7 +309,7 @@
   (declare (ignore start count))
 
   (let ((error (generate-error-code nil 'invalid-unwind-error)))
-    (inst or block block)               ; check for NULL pointer
+    (inst test block block)             ; check for NULL pointer
     (inst jmp :z error))
 
   ;; Save all our registers, as we're about to clobber them.
@@ -338,7 +338,7 @@
   (inst push 0)
   (inst push 0)
   (inst push ecx-tn)
-  (inst call (make-fixup "RtlUnwind@16" :foreign)))
+  (inst call (make-fixup "RtlUnwind" :foreign)))
 
 ;; We want no VOP for this one and for it to only happen on Win32
 ;; targets.  Hence the following disaster.