1 ;;;; that part of the parms.lisp file from original CMU CL which is defined in
2 ;;;; terms of the BACKEND structure
4 ;;;; FIXME: When we break up the BACKEND structure, this might be mergeable
5 ;;;; back into the parms.lisp file.
7 ;;;; This software is part of the SBCL system. See the README file for
10 ;;;; This software is derived from the CMU CL system, which was
11 ;;;; written at Carnegie Mellon University and released into the
12 ;;;; public domain. The software is in the public domain and is
13 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
14 ;;;; files for more information.
21 ;;;; compiler constants
23 (setf *backend-fasl-file-type* "x86f")
24 (setf *backend-fasl-file-implementation* :x86)
25 (setf *backend-fasl-file-version* 5)
26 ;;; 2 = sbcl-0.6.4 uses COMPILE-OR-LOAD-DEFGENERIC.
27 ;;; 3 = sbcl-0.6.6 uses private symbol, not :EMPTY, for empty HASH-TABLE slot.
28 ;;; 4 = sbcl-0.6.7 uses HAIRY-DATA-VECTOR-REF and HAIRY-DATA-VECTOR-SET
29 ;;; when array headers or data element type uncertainty exist, and
30 ;;; uses DATA-VECTOR-REF and DATA-VECTOR-SET only for VOPs. (Thus,
31 ;;; full calls to DATA-VECTOR-REF and DATA-VECTOR-SET from older
32 ;;; fasl files would fail, because there are no DEFUNs for these
33 ;;; operations any more.)
34 ;;; 5 = sbcl-0.6.8 has rearranged static symbols.
36 (setf *backend-register-save-penalty* 3)
38 (setf *backend-byte-order* :little-endian)
40 (setf *backend-page-size* 4096)
41 ;;; comment from CMU CL:
43 ;;; in case we ever wanted to do this for Windows NT..
45 ;;; Windows NT uses a memory system granularity of 64K, which means
46 ;;; everything that gets mapped must be a multiple of that. The real
47 ;;; page size is 512, but that doesn't do us a whole lot of good.
48 ;;; Effectively, the page size is 64K.
50 ;;; would be: (setf *backend-page-size* 65536)