source: branches/new-random/level-1/l1-init.lisp @ 15278

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1;;;-*-Mode: LISP; Package: CCL -*-
2;;;
3;;;   Copyright (C) 2009 Clozure Associates
4;;;   Copyright (C) 1994-2001 Digitool, Inc
5;;;   This file is part of Clozure CL. 
6;;;
7;;;   Clozure CL is licensed under the terms of the Lisp Lesser GNU Public
8;;;   License , known as the LLGPL and distributed with Clozure CL as the
9;;;   file "LICENSE".  The LLGPL consists of a preamble and the LGPL,
10;;;   which is distributed with Clozure CL as the file "LGPL".  Where these
11;;;   conflict, the preamble takes precedence. 
12;;;
13;;;   Clozure CL is referenced in the preamble as the "LIBRARY."
14;;;
15;;;   The LLGPL is also available online at
16;;;   http://opensource.franz.com/preamble.html
17
18(in-package "CCL")
19
20(eval-when (:compile-toplevel :execute :load-toplevel)
21
22(defconstant most-positive-short-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 0))
23(defconstant most-negative-short-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 -1))
24(defconstant most-positive-single-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 0))
25(defconstant most-negative-single-float (make-short-float-from-fixnums (1- (ash 1 23)) 254 -1))
26
27
28(defconstant least-positive-short-float (make-short-float-from-fixnums 1 0 0))
29(defconstant least-negative-short-float (make-short-float-from-fixnums 1 0 -1))
30(defconstant least-positive-single-float (make-short-float-from-fixnums 1 0 0))
31(defconstant least-negative-single-float (make-short-float-from-fixnums 1 0 -1))
32
33(defconstant short-float-epsilon (make-short-float-from-fixnums 1 103 0))
34(defconstant short-float-negative-epsilon (make-short-float-from-fixnums 1 102 0))
35(defconstant single-float-epsilon (make-short-float-from-fixnums 1 103 0))
36(defconstant single-float-negative-epsilon (make-short-float-from-fixnums 1 102 0))
37
38(defconstant least-positive-normalized-short-float (make-short-float-from-fixnums 1 1 0))
39(defconstant least-negative-normalized-short-float (make-short-float-from-fixnums 1 1 -1))
40(defconstant least-positive-normalized-single-float (make-short-float-from-fixnums 1 1 0))
41(defconstant least-negative-normalized-single-float (make-short-float-from-fixnums 1 1 -1))
42
43(let ((bigfloat (make-float-from-fixnums #x1ffffff #xfffffff #x7fe 0)))
44  ; do it this way if you want to be able to compile before reading floats works 
45  (defconstant most-positive-double-float bigfloat)
46  (defconstant most-positive-long-float bigfloat)
47  )
48
49(let ((littleposfloat (make-float-from-fixnums 0 1 0 0 )))
50  (defconstant least-positive-double-float littleposfloat)
51  (defconstant least-positive-long-float littleposfloat)
52  )
53
54(let ((littlenegfloat (make-float-from-fixnums 0 1 0 -1))) 
55  (defconstant least-negative-double-float littlenegfloat)
56  (defconstant least-negative-long-float littlenegfloat)
57  )
58
59(let ((bignegfloat (make-float-from-fixnums #x1ffffff #xfffffff #x7fe -1)))
60  (defconstant most-negative-double-float bignegfloat)
61  (defconstant most-negative-long-float bignegfloat)
62  )
63
64(let ((eps (make-float-from-fixnums #x1000000 1 #x3ca 0))) ;was wrong
65  (defconstant double-float-epsilon eps)
66  (defconstant long-float-epsilon eps)
67  )
68
69(let ((eps- (make-float-from-fixnums #x1000000 1 #x3c9 1)))
70  (defconstant double-float-negative-epsilon eps-)
71  (defconstant long-float-negative-epsilon eps-)
72  )
73
74(let ((norm (make-float-from-fixnums 0 0 1 0)))
75  (defconstant least-positive-normalized-double-float norm)
76  (defconstant least-positive-normalized-long-float norm)
77  )
78
79(let ((norm- (make-float-from-fixnums 0 0 1 -1)))
80  (defconstant least-negative-normalized-double-float norm-)
81  (defconstant least-negative-normalized-long-float norm-)
82  )
83
84(defconstant pi (make-float-from-fixnums #x921fb5 #x4442d18 #x400 0))
85
86)
87
88
89
90(defconstant boole-clr 0
91  "Boole function op, makes BOOLE return 0.")
92(defconstant boole-set 1
93  "Boole function op, makes BOOLE return -1.")
94(defconstant boole-1 2
95  "Boole function op, makes BOOLE return integer1.")
96(defconstant boole-2 3
97  "Boole function op, makes BOOLE return integer2.")
98(defconstant boole-c1 4
99  "Boole function op, makes BOOLE return complement of integer1.")
100(defconstant boole-c2 5
101  "Boole function op, makes BOOLE return complement of integer2.")
102(defconstant boole-and 6
103  "Boole function op, makes BOOLE return logand of integer1 and integer2.")
104(defconstant boole-ior 7
105  "Boole function op, makes BOOLE return logior of integer1 and integer2.")
106(defconstant boole-xor 8
107  "Boole function op, makes BOOLE return logxor of integer1 and integer2.")
108(defconstant boole-eqv 9
109  "Boole function op, makes BOOLE return logeqv of integer1 and integer2.")
110(defconstant boole-nand 10
111  "Boole function op, makes BOOLE return log nand of integer1 and integer2.")
112(defconstant boole-nor 11
113  "Boole function op, makes BOOLE return lognor of integer1 and integer2.")
114(defconstant boole-andc1 12
115  "Boole function op, makes BOOLE return logandc1 of integer1 and integer2.")
116(defconstant boole-andc2 13
117  "Boole function op, makes BOOLE return logandc2 of integer1 and integer2.")
118(defconstant boole-orc1 14
119  "Boole function op, makes BOOLE return logorc1 of integer1 and integer2.")
120(defconstant boole-orc2 15
121  "Boole function op, makes BOOLE return logorc2 of integer1 and integer2.")
122
123
124
125(defconstant internal-time-units-per-second #+64-bit-target 1000000 #-64-bit-target 1000
126  "The number of internal time units that fit into a second. See
127  GET-INTERNAL-REAL-TIME and GET-INTERNAL-RUN-TIME.")
128
129(defconstant char-code-limit #.(arch::target-char-code-limit
130                                (backend-target-arch *target-backend*))
131  "the upper exclusive bound on values produced by CHAR-CODE")
132
133(defconstant array-rank-limit (floor #x8000 target::node-size)
134  "the exclusive upper bound on the rank of an array")
135(defconstant multiple-values-limit 200
136  "The exclusive upper bound on the number of multiple VALUES that you can
137  return.")
138(defconstant lambda-parameters-limit (floor #x8000 target::node-size)
139  "The exclusive upper bound on the number of parameters which may be specifed
140  in a given lambda list. This is actually the limit on required and &OPTIONAL
141  parameters. With &KEY and &AUX you can get more.")
142(defconstant call-arguments-limit (floor #x8000 target::node-size)
143  "The exclusive upper bound on the number of arguments which may be passed
144  to a function, including &REST args."
145)
146
147; Currently, vectors can be at most (expt 2 22) bytes, and
148; the largest element (double-float or long-float) is 8 bytes:
149#| to get largest element size...
150(apply #'max (mapcar #'(lambda (type)
151                         (%vect-byte-size (make-array 1 :element-type type)))
152                     *cl-types*))
153|#
154
155(defconstant array-dimension-limit array-total-size-limit
156  "the exclusive upper bound on any given dimension of an array")
157
158(defconstant most-positive-fixnum target::target-most-positive-fixnum
159  "the fixnum closest in value to positive infinity")
160(defconstant most-negative-fixnum target::target-most-negative-fixnum
161  "the fixnum closest in value to negative infinity")
162
163
164(defconstant lambda-list-keywords 
165  '(&OPTIONAL &REST &AUX &KEY &ALLOW-OTHER-KEYS &BODY &ENVIRONMENT &WHOLE)
166  "symbols which are magical in a lambda list")
167
168(defstatic *type-system-initialized* nil)
169
170(defparameter %toplevel-catch% ':toplevel)
171
172(defvar *read-default-float-format* 'single-float)
173
174(defvar *read-suppress* nil
175  "Suppress most interpreting in the reader when T.")
176
177(defvar *read-base* 10.
178  "the radix that Lisp reads numbers in")
179
180
181(defparameter *warn-if-redefine-kernel* nil
182  "When true, attempts to redefine (via DEFUN or DEFMETHOD) functions and
183methods that are marked as being predefined signal continuable errors.")
184
185(defvar *next-screen-context-lines* 2 "Number of lines to show of old screen
186  after a scroll-up or scroll-down.")
187
188(defparameter *compiling-file* nil 
189  "Name of outermost file being compiled or NIL if not compiling a file.")
190
191(defvar *eval-fn-name* nil)
192
193
194(defvar *compile-definitions* t
195  "When non-NIL and the evaluator's lexical environment contains no
196  lexical entities, causes FUNCTION and NFUNCTION forms to be compiled.")
197#|
198(defvar *fast-eval* ()
199  "If non-nil, compile-and-call any forms which would be expensive to evaluate.")
200|#
201(defvar *declaration-handlers* ())
202
203
204(defvar *lisp-system-pointer-functions* nil)
205(defvar *lisp-user-pointer-functions* nil)
206(defvar *lisp-cleanup-functions* nil)   ; list of (0-arg) functions to call before quitting Lisp
207(defvar *lisp-startup-functions* nil)   ; list of funs to call after startup.
208(defvar %lisp-system-fixups% nil)
209
210
211(setf (*%saved-method-var%*) nil)
212
213; The GC expects these to be NIL or a function of no args
214(defvar *pre-gc-hook* nil)
215(defvar *post-gc-hook* nil)
216
217; These are used by add-gc-hook, delete-gc-hook
218(defvar *pre-gc-hook-list* nil)
219(defvar *post-gc-hook-list* nil)
220
221(defvar *backtrace-dialogs* nil)
222;(defvar *stepper-running* nil)
223(defparameter *last-mouse-down-time* 0)
224(defparameter *last-mouse-down-position* 0)
225
226(defvar %handlers% ())
227
228
229#|
230(defvar %restarts% (list (list (%cons-restart 'abort
231                                              #'(lambda (&rest ignore)
232                                                  (declare (ignore ignore))
233                                                  (throw :toplevel nil))
234                                              "Restart the toplevel loop."
235                                              nil
236                                              nil))))
237|#
238
239(defvar %restarts% nil)
240
241(defvar ccl::*kernel-restarts* nil)
242(defvar *condition-restarts* nil "explicit mapping between c & r")
243(declaim (list %handlers% %restarts% ccl::*kernel-restarts* *condition-restarts*))
244
245
246
247
248(defparameter *%periodic-tasks%* nil)
249(defparameter *dribble-stream* nil)
250
251(defconstant *keyword-package* *keyword-package*)
252(defconstant *common-lisp-package* *common-lisp-package*)
253(defconstant *ccl-package* *ccl-package*)
254
255(defparameter *load-print* nil "the default for the :PRINT argument to LOAD")
256(defparameter *loading-files* nil)
257(defparameter *break-level* 0)
258(defparameter *last-break-level* 0)
259(defparameter *warn-if-redefine* nil)
260(defvar *record-source-file*)           ; set in l1-utils.
261(defparameter *level-1-loaded* nil)     ; set t by l1-boot
262(defparameter *save-definitions* nil)
263(defparameter *save-local-symbols* t)
264(defparameter *save-source-locations* T
265  "Controls whether source location information is saved, both for definitions (names) and
266in function objects.
267
268If NIL we don't store any source locations (other than the filename if *record-source-file* is non-NIL).
269
270If T we store as much source location information as we have available.
271
272If :NO-TEXT we don't store a copy of the original source text.  This is a space optimization useful
273for compiling files that are not expected to change.")
274
275(defparameter *record-pc-mapping* t "True to record pc -> source mapping (but only if
276*save-source-locations* is also true)")
277
278(defvar *modules* nil
279  "This is a list of module names that have been loaded into Lisp so far.
280   The names are case sensitive strings.  It is used by PROVIDE and REQUIRE.")
281
282
283
284
285
286(defparameter *eof-value* (cons nil nil))
287
288(defvar *gc-event-status-bits*)         ; also initialized by kernel
289
290(defparameter *top-listener* nil)
291
292
293
294
295
296
297
298(defvar *listener-indent* nil)
299
300(defparameter *autoload-lisp-package* nil)   ; Make 'em suffer
301(defparameter *apropos-case-sensitive-p* nil)
302
303(defloadvar *total-gc-microseconds* (let* ((timeval-size
304                                            #.(%foreign-type-or-record-size
305                                               :timeval :bytes))
306                                           (p (malloc (* 5 timeval-size))))
307                                      (#_memset p 0 (* 5 timeval-size))
308                                      p))
309
310
311(defloadvar *total-bytes-freed* (let* ((p (malloc 8)))
312                                  (setf (%get-long p 0) 0
313                                        (%get-long p 4) 0)
314                                  p))
315
316
317
318(defvar *terminal-character-encoding-name* nil
319  "NIL (implying :ISO-8859-1), or a keyword which names a defined
320character encoding to be used for *TERMINAL-IO* and other predefined
321initial streams.  The value of *TERMINAL-CHARACTER-ENCODING-NAME*
322persists across calls to SAVE-APPLICATION; it can be specified via
323the command-line argument --terminal-encoding (-K)")
324
325
326(defconstant +null-ptr+ (%null-ptr))
327
328;;; end of L1-init.lisp
329
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