1.0.4.85: small PCL cleanups and thread-safety notes

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

diff --git a/src/compiler/x86/parms.lisp b/src/compiler/x86/parms.lisp
index 81563da..6e34325 100644 (file)
--- a/src/compiler/x86/parms.lisp
+++ b/src/compiler/x86/parms.lisp
@@ -35,9 +35,11 @@
 ;;; addressable object
 (def!constant n-byte-bits 8)
 
-;;; The size in bytes of the GENCGC pages. Should be a multiple of the
-;;; architecture code size.
-(def!constant gencgc-page-size 4096)
+;;; The minimum immediate offset in a memory-referencing instruction.
+(def!constant minimum-immediate-offset (- (expt 2 31)))
+
+;;; The maximum immediate offset in a memory-referencing instruction.
+(def!constant maximum-immediate-offset (1- (expt 2 31)))
 
 (def!constant float-sign-shift 31)
 
@@ -271,8 +273,7 @@
   breakpoint
   fun-end-breakpoint
   single-step-around
-  single-step-before
-  #!+win32 context-restore) ;; HACK: The Win32 exception handling system does wrong things with this.
+  single-step-before)
 ;;; FIXME: It'd be nice to replace all the DEFENUMs with something like
 ;;;   (WITH-DEF-ENUM (:START 8)
 ;;;     (DEF-ENUM HALT-TRAP)