X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fppc%2Fparms.lisp;h=4e05dd7edb8314705c4c418c74c32e1e39937a72;hb=5e9825374b74df450d8cfb2c005e6bef30197734;hp=d5f88c892096887f63e22bef6d0e7ca3edbfed15;hpb=02c9007b4ca5753406f60019f4fe5e5f8392541a;p=sbcl.git

diff --git a/src/compiler/ppc/parms.lisp b/src/compiler/ppc/parms.lisp
index d5f88c8..4e05dd7 100644
--- a/src/compiler/ppc/parms.lisp
+++ b/src/compiler/ppc/parms.lisp
@@ -2,12 +2,24 @@
 ;;;; attributes for the PPC.  This file is separate from other stuff so 
 ;;;; that it can be compiled and loaded earlier. 
 
+;;;; 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")
 
 (def!constant n-word-bits 32
   "Number of bits per word where a word holds one lisp descriptor.")
 
+;;; the natural width of a machine word (as seen in e.g. register width,
+;;; address space)
+(def!constant n-machine-word-bits 32)
+
 (def!constant n-byte-bits 8
   "Number of bits per byte where a byte is the smallest addressable object.")
 
@@ -79,16 +91,15 @@
 ;;;
 ;;; The number of bytes reserved above the number stack pointer.  These
 ;;; slots are required by architecture, mostly (?) to make C backtrace
-;;; work.
+;;; work. This must be a power of 2 - see BYTES-REQUIRED-FOR-NUMBER-STACK.
 ;;; 
 (def!constant number-stack-displacement
-  (* 2 sb!vm:n-word-bytes))
-
+  (* #!-darwin 2
+     #!+darwin 8
+     n-word-bytes))
 
 
-
 ;;; Where to put the different spaces.
-;;; 
 
 (def!constant read-only-space-start #x01000000)
 (def!constant read-only-space-end   #x04ff8000)
@@ -196,6 +207,7 @@
     sb!kernel:two-arg-and
     sb!kernel:two-arg-ior
     sb!kernel:two-arg-xor
+    sb!kernel:two-arg-eqv
     sb!kernel:two-arg-gcd
     sb!kernel:two-arg-lcm))