0.9.9.27:

[sbcl.git] / src / compiler / x86 / macros.lisp

diff --git a/src/compiler/x86/macros.lisp b/src/compiler/x86/macros.lisp
index 6acfca8..48224fb 100644 (file)
--- a/src/compiler/x86/macros.lisp
+++ b/src/compiler/x86/macros.lisp
@@ -108,6 +108,25 @@
   (declare (ignore temp))
   `(store-symbol-value ,reg ,symbol))
 
+(defmacro load-binding-stack-pointer (reg)
+  #!+sb-thread
+  `(progn
+     (inst fs-segment-prefix)
+     (inst mov ,reg (make-ea :dword
+                             :disp (* 4 thread-binding-stack-pointer-slot))))
+  #!-sb-thread
+  `(load-symbol-value ,reg *binding-stack-pointer*))
+
+(defmacro store-binding-stack-pointer (reg)
+  #!+sb-thread
+  `(progn
+     (inst fs-segment-prefix)
+     (inst mov (make-ea :dword
+                        :disp (* 4 thread-binding-stack-pointer-slot))
+           ,reg))
+  #!-sb-thread
+  `(store-symbol-value ,reg *binding-stack-pointer*))
+
 (defmacro load-type (target source &optional (offset 0))
   #!+sb-doc
   "Loads the type bits of a pointer into target independent of