X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fmips%2Fsystem.lisp;h=4ac025c6df297700978b7834a9bfd74de63f0507;hb=9b1fade83db8453b75b8c7380eb12ce41b5b889c;hp=087e6eaaeeba1def9bb565983cdbdbb0a030e921;hpb=52cfe54802db8736f1f4e2b67764c43bba9b78b3;p=sbcl.git

diff --git a/src/compiler/mips/system.lisp b/src/compiler/mips/system.lisp
index 087e6ea..4ac025c 100644
--- a/src/compiler/mips/system.lisp
+++ b/src/compiler/mips/system.lisp
@@ -1,32 +1,15 @@
-(in-package "SB!VM")
+;;;; MIPS VM definitions of various system hacking operations
 
-
-;;;; Random pointer comparison VOPs
-
-(define-vop (pointer-compare)
-  (:args (x :scs (sap-reg))
-         (y :scs (sap-reg)))
-  (:arg-types system-area-pointer system-area-pointer)
-  (:temporary (:scs (non-descriptor-reg)) temp)
-  (:conditional)
-  (:info target not-p)
-  (:policy :fast-safe)
-  (:note "inline comparison")
-  (:variant-vars condition)
-  (:generator 3
-    (three-way-comparison x y condition :unsigned not-p target temp)))
-
-#+nil
-(macrolet ((frob (name cond)
-             `(progn
-                (def-primitive-translator ,name (x y) `(,',name ,x ,y))
-                (defknown ,name (t t) boolean (movable foldable flushable))
-                (define-vop (,name pointer-compare)
-                  (:translate ,name)
-                  (:variant ,cond)))))
-  (frob pointer< :lt)
-  (frob pointer> :gt))
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
 
+(in-package "SB!VM")
 
 
 ;;;; Type frobbing VOPs
@@ -147,13 +130,14 @@
     (storew t1 x 0 other-pointer-lowtag)
     (move res x)))
 
-(define-vop (make-fixnum)
+(define-vop (pointer-hash)
+  (:translate pointer-hash)
   (:args (ptr :scs (any-reg descriptor-reg)))
   (:results (res :scs (any-reg descriptor-reg)))
+  (:policy :fast-safe)
   (:generator 1
-    ;;
-    ;; Some code (the hash table code) depends on this returning a
-    ;; positive number so make sure it does.
+    ;; FIXME: It would be better if this would mask the lowtag,
+    ;; and shift the result into a positive fixnum like on x86.
     (inst sll res ptr 3)
     (inst srl res res 1)))
 
@@ -240,12 +224,12 @@
   (:policy :fast-safe)
   (:translate sb!unix::receive-pending-interrupt)
   (:generator 1
-    (inst break pending-interrupt-trap)))
+    (inst break 0 pending-interrupt-trap)))
 
 
 (define-vop (halt)
   (:generator 1
-    (inst break halt-trap)))
+    (inst break 0 halt-trap)))
 
 
 ;;;; Dynamic vop count collection support