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source: branches/purify/source/compiler/PPC/PPC64/ppc64-arch.lisp

Last change on this file was 13243, checked in by Gary Byers, 15 years ago

PPC static-cons changes.

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1;;;-*- Mode: Lisp; Package: (PPC64 :use CL) -*-
2;;;
3;;; Copyright (C) 1994-2001 Digitool, Inc
4;;; This file is part of OpenMCL.
5;;;
6;;; OpenMCL is licensed under the terms of the Lisp Lesser GNU Public
7;;; License , known as the LLGPL and distributed with OpenMCL as the
8;;; file "LICENSE". The LLGPL consists of a preamble and the LGPL,
9;;; which is distributed with OpenMCL as the file "LGPL". Where these
10;;; conflict, the preamble takes precedence.
11;;;
12;;; OpenMCL is referenced in the preamble as the "LIBRARY."
13;;;
14;;; The LLGPL is also available online at
15;;; http://opensource.franz.com/preamble.html
16
17;;; This file matches "ccl:lisp-kernel;constants64.h" &
18;;; "ccl:lisp-kernel;constants64.s"
19
20(defpackage "PPC64"
21 (:use "CL")
22 #+ppc64-target
23 (:nicknames "TARGET"))
24
25
26(in-package "PPC64")
27
28(eval-when (:compile-toplevel :load-toplevel :execute)
29(defconstant rcontext 2) ;sigh. Could use r13+bias on Linux,
30 ; but Apple hasn't invented tls yet.
31(defconstant nbits-in-word 64)
32(defconstant least-significant-bit 63)
33(defconstant nbits-in-byte 8)
34(defconstant ntagbits 4)
35(defconstant nlisptagbits 3)
36(defconstant nfixnumtagbits 3) ; See ?
37(defconstant nlowtagbits 2)
38(defconstant num-subtag-bits 8) ; tag part of header is 8 bits wide
39(defconstant fixnumshift nfixnumtagbits)
40(defconstant fixnum-shift fixnumshift) ; A pet name for it.
41(defconstant fulltagmask (1- (ash 1 ntagbits))) ; Only needed by GC/very low-level code
42(defconstant full-tag-mask fulltagmask)
43(defconstant tagmask (1- (ash 1 nlisptagbits)))
44(defconstant tag-mask tagmask)
45(defconstant fixnummask (1- (ash 1 nfixnumtagbits)))
46(defconstant fixnum-mask fixnummask)
47(defconstant subtag-mask (1- (ash 1 num-subtag-bits)))
48(defconstant ncharcodebits 8) ;24
49(defconstant charcode-shift 8)
50(defconstant word-shift 3)
51(defconstant word-size-in-bytes 8)
52(defconstant node-size word-size-in-bytes)
53(defconstant dnode-size 16)
54(defconstant dnode-align-bits 4)
55(defconstant dnode-shift dnode-align-bits)
56(defconstant bitmap-shift 6)
57
58(defconstant target-most-negative-fixnum (ash -1 (1- (- nbits-in-word nfixnumtagbits))))
59(defconstant target-most-positive-fixnum (1- (ash 1 (1- (- nbits-in-word nfixnumtagbits)))))
60(defmacro define-subtag (name tag value)
61 `(defconstant ,(ccl::form-symbol "SUBTAG-" name) (logior ,tag (ash ,value ntagbits))))
62
63;;; PPC64 stuff and tags.
64
65;;; There are several ways to look at the 4 tag bits of any object or
66;;; header. Looking at the low 2 bits, we can classify things as
67;;; follows (I'm not sure if we'd ever want to do this) :
68;;;
69;;; #b00 a "primary" object: fixnum, cons, uvector
70;;; #b01 an immediate
71;;; #b10 the header on an immediate uvector
72;;; #b11 the header on a node (pointer-containing) uvector
73;;
74;;; Note that the ppc64's LD and STD instructions require that the low
75;;; two bits of the constant displacement be #b00. If we want to use constant
76;;; offsets to access CONS and UVECTOR fields, we're pretty much obligated
77;;; to ensure that CONS and UVECTOR have tags that also end in #b00, and
78;;; fixnum addition and subtraction work better when fixnum tags are all 0.
79;;; We generally have to look at all 4 tag bits before we really know what
80;;; class of "potentially primary" object we're looking at.
81;;; If we look at 3 tag bits, we can see:
82;;;
83;;; #b000 fixnum
84;;; #b001 immediate
85;;; #b010 immedate-header
86;;; #b011 node-header
87;;; #b100 CONS or UVECTOR
88;;; #b101 immediate
89;;; #b110 immediate-header
90;;; #b111 node-header
91;;;
92
93(defconstant tag-fixnum 0)
94(defconstant tag-imm-0 1)
95(defconstant tag-immheader-0 2)
96(defconstant tag-nodeheader-0 3)
97(defconstant tag-memory 4)
98(defconstant tag-imm-2 5)
99(defconstant tag-immheader2 6)
100(defconstant tag-nodeheader2 7)
101
102
103;;; Note how we're already winding up with lots of header and immediate
104;;; "classes". That might actually be useful.
105;;
106;;; When we move to 4 bits, we wind up (obviously) with 4 tags of the form
107;;; #bxx00. There are two partitionings that make (some) sense: we can either
108;;; use 2 of these for (even and odd) fixnums, or we can give NIL a tag
109;;; that's congruent (mod 16) with CONS. There seem to be a lot of tradeoffs
110;;; involved, but it ultimately seems best to be able to treat 64-bit
111;;; aligned addresses as fixnums: we don't want the VSP to look like a
112;;; vector. That basically requires that NIL really be a symbol (good
113;;; bye, nilsym) and that we ensure that there are NILs where its CAR and
114;;; CDR would be (-4, 4 bytes from the tagged pointer.) That means that
115;;; CONS is 4 and UVECTOR is 12, and we have even more immediate/header types.
116
117(defconstant fulltag-even-fixnum #b0000)
118(defconstant fulltag-imm-0 #b0001)
119(defconstant fulltag-immheader-0 #b0010)
120(defconstant fulltag-nodeheader-0 #b0011)
121(defconstant fulltag-cons #b0100)
122(defconstant fulltag-imm-1 #b0101)
123(defconstant fulltag-immheader-1 #b0110)
124(defconstant fulltag-nodeheader-1 #b0111)
125(defconstant fulltag-odd-fixnum #b1000)
126(defconstant fulltag-imm-2 #b1001)
127(defconstant fulltag-immheader-2 #b1010)
128(defconstant fulltag-nodeheader-2 #b1011)
129(defconstant fulltag-misc #b1100)
130(defconstant fulltag-imm-3 #b1101)
131(defconstant fulltag-immheader-3 #b1110)
132(defconstant fulltag-nodeheader-3 #b1111)
133
134(defconstant lowtagmask (1- (ash 1 nlowtagbits)))
135(defconstant lowtag-mask lowtagmask)
136(defconstant lowtag-primary 0)
137(defconstant lowtag-imm 1)
138(defconstant lowtag-immheader 2)
139(defconstant lowtag-nodeheader 3)
140
141;;; The general algorithm for determining the (primary) type of an
142;;; object is something like:
143;;; (clrldi tag node 60)
144;;; (cmpwi tag fulltag-misc)
145;;; (clrldi tag tag 61)
146;;; (bne @done)
147;;; (lbz tag misc-subtag-offset node)
148;;; @done
149;;
150;;; That's good enough to identify FIXNUM, "generally immediate", cons,
151;;; or a header tag from a UVECTOR. In some cases, we may need to hold
152;;; on to the full 4-bit tag.
153;;; In no specific order:
154;;; - it's important to be able to quickly recognize fixnums; that's
155;;; simple
156;;; - it's important to be able to quickly recognize lists (for CAR/CDR)
157;;; and somewhat important to be able to quickly recognize conses.
158;;; Also simple, though we have to special-case NIL.
159;;; - it's desirable to be able to do VECTORP, ARRAYP, and specific-array-type-
160;;; p. We need at least 12 immediate CL vector types (SIGNED/UNSIGNED-BYTE
161;;; 8/16/32/64, SINGLE-FLOAT, DOUBLE-FLOAT, BIT, and at least one CHARACTER;
162;;; we need SIMPLE-ARRAY, VECTOR-HEADER, and ARRAY-HEADER as node
163;;; array types. That's suspciciously close to 16
164;;; - it's desirable to be able (in FUNCALL) to quickly recognize
165;;; functions/symbols/other, and probably desirable to trap on other.
166;;; Pretty much have to do a memory reference and at least one comparison
167;;; here.
168;;; - it's sometimes desirable to recognize numbers and distinct numeric
169;;; types (other than FIXNUM) quickly.
170;;; - The GC (especially) needs to be able to determine the size of
171;;; ivectors (ivector elements) fairly cheaply. Most ivectors are CL
172;;; arrays, but code-vectors are fairly common (and have 32-bit elements,
173;;; naturally.)
174;;; - We have a fairly large number of non-array gvector types, and it's
175;;; always desirable to have room for expansion.
176;;; - we basically have 8 classes of header subtags, each of which has
177;;; 16 possible values. If we stole the high bit of the subtag to
178;;; indicate CL-array-ness, we'd still have 6 bits to encode non-CL
179;;; array types.
180
181(defconstant cl-array-subtag-bit 7)
182(defconstant cl-array-subtag-mask (ash 1 cl-array-subtag-bit))
183(defmacro define-cl-array-subtag (name tag value)
184 `(defconstant ,(ccl::form-symbol "SUBTAG-" name)
185 (logior cl-array-subtag-mask (logior ,tag (ash ,value ntagbits)))))
186
187(define-cl-array-subtag arrayH fulltag-nodeheader-1 0)
188(define-cl-array-subtag vectorH fulltag-nodeheader-2 0)
189(define-cl-array-subtag simple-vector fulltag-nodeheader-3 0)
190(defconstant min-array-subtag subtag-arrayH)
191(defconstant min-vector-subtag subtag-vectorH)
192
193;;; bits: 64 32 16 8 1
194;;; CL-array ivector types DOUBLE-FLOAT SINGLE s16 CHAR BIT
195;;; s64 s32 u16 s8
196;;; u64 u32 u8
197;;; Other ivector types MACPTR CODE-VECTOR
198;;; DEAD-MACPTR XCODE-VECTOR
199;;; BIGNUM
200;;; DOUBLE-FLOAT
201;;; There might possibly be ivectors with 128-bit (VMX/AltiVec) elements
202;;; someday, and there might be multiple character sizes (16/32 bits).
203;;; That sort of suggests that we use the four immheader classes to
204;;; encode the ivector size (64, 32, 8, other) and make BIT an easily-
205;;; detected case of OTHER.
206
207(defconstant ivector-class-64-bit fulltag-immheader-3)
208(defconstant ivector-class-32-bit fulltag-immheader-2)
209(defconstant ivector-class-other-bit fulltag-immheader-1)
210(defconstant ivector-class-8-bit fulltag-immheader-0)
211
212(define-cl-array-subtag s64-vector ivector-class-64-bit 1)
213(define-cl-array-subtag u64-vector ivector-class-64-bit 2)
214(define-cl-array-subtag fixnum-vector ivector-class-64-bit 3)
215(define-cl-array-subtag double-float-vector ivector-class-64-bit 4)
216(define-cl-array-subtag s32-vector ivector-class-32-bit 1)
217(define-cl-array-subtag u32-vector ivector-class-32-bit 2)
218(define-cl-array-subtag single-float-vector ivector-class-32-bit 3)
219(define-cl-array-subtag simple-base-string ivector-class-32-bit 5)
220(define-cl-array-subtag s16-vector ivector-class-other-bit 1)
221(define-cl-array-subtag u16-vector ivector-class-other-bit 2)
222(define-cl-array-subtag bit-vector ivector-class-other-bit 7)
223(define-cl-array-subtag s8-vector ivector-class-8-bit 1)
224(define-cl-array-subtag u8-vector ivector-class-8-bit 2)
225
226;;; There's some room for expansion in non-array ivector space.
227(define-subtag macptr ivector-class-64-bit 1)
228(define-subtag dead-macptr ivector-class-64-bit 2)
229
230(define-subtag code-vector ivector-class-32-bit 0)
231(define-subtag xcode-vector ivector-class-32-bit 1)
232(define-subtag bignum ivector-class-32-bit 2)
233(define-subtag double-float ivector-class-32-bit 3)
234
235;;; Size doesn't matter for non-CL-array gvectors; I can't think of a good
236;;; reason to classify them in any particular way. Let's put funcallable
237;;; things in the first slice by themselves, though it's not clear that
238;;; that helps FUNCALL much.
239(defconstant gvector-funcallable fulltag-nodeheader-0)
240(define-subtag function gvector-funcallable 0)
241(define-subtag symbol gvector-funcallable 1)
242
243(define-subtag catch-frame fulltag-nodeheader-1 0)
244(define-subtag basic-stream fulltag-nodeheader-1 1)
245(define-subtag lock fulltag-nodeheader-1 2)
246(define-subtag hash-vector fulltag-nodeheader-1 3)
247(define-subtag pool fulltag-nodeheader-1 4)
248(define-subtag weak fulltag-nodeheader-1 5)
249(define-subtag package fulltag-nodeheader-1 6)
250(define-subtag slot-vector fulltag-nodeheader-2 0)
251(define-subtag instance fulltag-nodeheader-2 1)
252(define-subtag struct fulltag-nodeheader-2 2)
253(define-subtag istruct fulltag-nodeheader-2 3)
254(define-subtag value-cell fulltag-nodeheader-2 4)
255(define-subtag xfunction fulltag-nodeheader-2 5)
256
257(define-subtag ratio fulltag-nodeheader-3 0)
258(define-subtag complex fulltag-nodeheader-3 1)
259
260
261
262(eval-when (:compile-toplevel :load-toplevel :execute)
263 (require "PPC-ARCH")
264 (defmacro define-storage-layout (name origin &rest cells)
265 `(progn
266 (ccl::defenum (:start ,origin :step 8)
267 ,@(mapcar #'(lambda (cell) (ccl::form-symbol name "." cell)) cells))
268 (defconstant ,(ccl::form-symbol name ".SIZE") ,(* (length cells)
269 8))))
270
271(defmacro define-lisp-object (name tagname &rest cells)
272 `(define-storage-layout ,name ,(- (symbol-value tagname)) ,@cells))
273
274
275
276(defmacro define-fixedsized-object (name &rest non-header-cells)
277 `(progn
278 (define-lisp-object ,name fulltag-misc header ,@non-header-cells)
279 (ccl::defenum ()
280 ,@(mapcar #'(lambda (cell) (ccl::form-symbol name "." cell "-CELL")) non-header-cells))
281 (defconstant ,(ccl::form-symbol name ".ELEMENT-COUNT") ,(length non-header-cells))))
282
283
284
285
286
287
288
289(defconstant misc-header-offset (- fulltag-misc))
290(defconstant misc-subtag-offset (+ misc-header-offset 7 ))
291(defconstant misc-data-offset (+ misc-header-offset 8))
292(defconstant misc-dfloat-offset (+ misc-header-offset 8))
293
294
295
296(define-subtag single-float fulltag-imm-0 0)
297
298(define-subtag character fulltag-imm-1 0)
299
300;;; FULLTAG-IMM-2 is unused, so the only type with lisptag (3-bit tag)
301;;; TAG-IMM-0 should be SINGLE-FLOAT.
302
303(define-subtag unbound fulltag-imm-3 0)
304(defconstant unbound-marker subtag-unbound)
305(defconstant undefined unbound-marker)
306(define-subtag slot-unbound fulltag-imm-3 1)
307(defconstant slot-unbound-marker subtag-slot-unbound)
308(define-subtag illegal fulltag-imm-3 2)
309(defconstant illegal-marker subtag-illegal)
310
311(define-subtag no-thread-local-binding fulltag-imm-3 3)
312(define-subtag forward-marker fulltag-imm-3 7)
313
314
315(defconstant max-64-bit-constant-index (ash (+ #x7fff ppc64::misc-dfloat-offset) -3))
316(defconstant max-32-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) -2))
317(defconstant max-16-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) -1))
318(defconstant max-8-bit-constant-index (+ #x7fff ppc64::misc-data-offset))
319(defconstant max-1-bit-constant-index (ash (+ #x7fff ppc64::misc-data-offset) 5))
320
321
322; The objects themselves look something like this:
323
324; Order of CAR and CDR doesn't seem to matter much - there aren't
325; too many tricks to be played with predecrement/preincrement addressing.
326; Keep them in the confusing MCL 3.0 order, to avoid confusion.
327(define-lisp-object cons fulltag-cons
328 cdr
329 car)
330
331
332(define-fixedsized-object ratio
333 numer
334 denom)
335
336;;; It's slightly easier (for bootstrapping reasons)
337;;; to view a DOUBLE-FLOAT as being UVECTOR with 2 32-bit elements
338;;; (rather than 1 64-bit element).
339
340(defconstant double-float.value misc-data-offset)
341(defconstant double-float.value-cell 0)
342(defconstant double-float.val-high double-float.value)
343(defconstant double-float.val-high-cell double-float.value-cell)
344(defconstant double-float.val-low (+ double-float.value 4))
345(defconstant double-float.val-low-cell 1)
346(defconstant double-float.element-count 2)
347(defconstant double-float.size 16)
348
349(define-fixedsized-object complex
350 realpart
351 imagpart
352)
353
354
355; There are two kinds of macptr; use the length field of the header if you
356; need to distinguish between them
357(define-fixedsized-object macptr
358 address
359 domain
360 type
361)
362
363(define-fixedsized-object xmacptr
364 address
365 domain
366 type
367 flags
368 link
369)
370
371; Catch frames go on the tstack; they point to a minimal lisp-frame
372; on the cstack. (The catch/unwind-protect PC is on the cstack, where
373; the GC expects to find it.)
374(define-fixedsized-object catch-frame
375 catch-tag ; #<unbound> -> unwind-protect, else catch
376 link ; tagged pointer to next older catch frame
377 mvflag ; 0 if single-value, 1 if uwp or multiple-value
378 csp ; pointer to control stack
379 db-link ; value of dynamic-binding link on thread entry.
380 save-save7 ; saved registers
381 save-save6
382 save-save5
383 save-save4
384 save-save3
385 save-save2
386 save-save1
387 save-save0
388 xframe ; exception-frame link
389 tsp-segment ; mostly padding, for now.
390)
391
392(define-fixedsized-object lock
393 _value ;finalizable pointer to kernel object
394 kind ; '0 = recursive-lock, '1 = rwlock
395 writer ;tcr of owning thread or 0
396 name
397 whostate
398 whostate-2
399 )
400
401
402
403(define-fixedsized-object symbol
404 pname
405 vcell
406 fcell
407 package-predicate
408 flags
409 plist
410 binding-index
411)
412
413
414(defconstant t-offset (- symbol.size))
415
416
417
418
419(define-fixedsized-object vectorH
420 logsize ; fillpointer if it has one, physsize otherwise
421 physsize ; total size of (possibly displaced) data vector
422 data-vector ; object this header describes
423 displacement ; true displacement or 0
424 flags ; has-fill-pointer,displaced-to,adjustable bits; subtype of underlying simple vector.
425)
426
427(define-lisp-object arrayH fulltag-misc
428 header ; subtag = subtag-arrayH
429 rank ; NEVER 1
430 physsize ; total size of (possibly displaced) data vector
431 data-vector ; object this header describes
432 displacement ; true displacement or 0
433 flags ; has-fill-pointer,displaced-to,adjustable bits; subtype of underlying simple vector.
434 ;; Dimensions follow
435)
436
437(defconstant arrayH.rank-cell 0)
438(defconstant arrayH.physsize-cell 1)
439(defconstant arrayH.data-vector-cell 2)
440(defconstant arrayH.displacement-cell 3)
441(defconstant arrayH.flags-cell 4)
442(defconstant arrayH.dim0-cell 5)
443
444(defconstant arrayH.flags-cell-bits-byte (byte 8 0))
445(defconstant arrayH.flags-cell-subtag-byte (byte 8 8))
446
447
448(define-fixedsized-object value-cell
449 value)
450
451
452;;; The kernel uses these (rather generically named) structures
453;;; to keep track of various memory regions it (or the lisp) is
454;;; interested in.
455
456
457(define-storage-layout area 0
458 pred ; pointer to preceding area in DLL
459 succ ; pointer to next area in DLL
460 low ; low bound on area addresses
461 high ; high bound on area addresses.
462 active ; low limit on stacks, high limit on heaps
463 softlimit ; overflow bound
464 hardlimit ; another one
465 code ; an area-code; see below
466 markbits ; bit vector for GC
467 ndnodes ; "active" size of dynamic area or stack
468 older ; in EGC sense
469 younger ; also for EGC
470 h ; Handle or null pointer
471 softprot ; protected_area structure pointer
472 hardprot ; another one.
473 owner ; fragment (library) which "owns" the area
474 refbits ; bitvector for intergenerational refernces
475 threshold ; for egc
476 gc-count ; generational gc count.
477 static-dnodes ; for honsing. etc
478 static-used ; bitvector
479)
480
481
482(defconstant area.ndwords area.ndnodes)
483
484
485
486
487(define-storage-layout protected-area 0
488 next
489 start ; first byte (page-aligned) that might be protected
490 end ; last byte (page-aligned) that could be protected
491 nprot ; Might be 0
492 protsize ; number of bytes to protect
493 why)
494
495(defconstant tcr-bias 0)
496
497(define-storage-layout tcr (- tcr-bias)
498 prev ; in doubly-linked list
499 next ; in doubly-linked list
500 single-float-convert ; per-thread scratch space.
501 lisp-fpscr-high
502 db-link ; special binding chain head
503 catch-top ; top catch frame
504 save-vsp ; VSP when in foreign code
505 save-tsp ; TSP when in foreign code
506 cs-area ; cstack area pointer
507 vs-area ; vstack area pointer
508 ts-area ; tstack area pointer
509 cs-limit ; cstack overflow limit
510 total-bytes-allocated-high
511 log2-allocation-quantum ; unboxed
512 interrupt-pending ; fixnum
513 xframe ; exception frame linked list
514 errno-loc ; thread-private, maybe
515 ffi-exception ; fpscr bits from ff-call.
516 osid ; OS thread id
517 valence ; odd when in foreign code
518 foreign-exception-status
519 native-thread-info
520 native-thread-id
521 last-allocptr
522 save-allocptr
523 save-allocbase
524 reset-completion
525 activate
526 suspend-count
527 suspend-context
528 pending-exception-context
529 suspend ; semaphore for suspension notify
530 resume ; sempahore for resumption notify
531 flags ; foreign, being reset, ...
532 gc-context
533 termination-semaphore
534 unwinding
535 tlb-limit
536 tlb-pointer
537 shutdown-count
538 safe-ref-address
539)
540
541(defconstant interrupt-level-binding-index (ash 1 fixnumshift))
542
543(defconstant tcr.lisp-fpscr-low (+ tcr.lisp-fpscr-high 4))
544(defconstant tcr.total-bytes-allocated-low (+ tcr.total-bytes-allocated-high 4))
545
546(define-storage-layout lockptr 0
547 avail
548 owner
549 count
550 signal
551 waiting
552 malloced-ptr
553 spinlock)
554
555(define-storage-layout rwlock 0
556 spin
557 state
558 blocked-writers
559 blocked-readers
560 writer
561 reader-signal
562 writer-signal
563 malloced-ptr
564 )
565
566;;; For the eabi port: mark this stack frame as Lisp's (since EABI
567;;; foreign frames can be the same size as a lisp frame.)
568
569
570(ppc64::define-storage-layout lisp-frame 0
571 backlink
572 savefn
573 savelr
574 savevsp
575)
576
577(ppc64::define-storage-layout c-frame 0
578 backlink
579 crsave
580 savelr
581 unused-1
582 unused-2
583 savetoc
584 param0
585 param1
586 param2
587 param3
588 param4
589 param5
590 param6
591 param7
592)
593
594(defconstant c-frame.minsize c-frame.size)
595
596(defmacro define-header (name element-count subtag)
597 `(defconstant ,name (logior (ash ,element-count num-subtag-bits) ,subtag)))
598
599(define-header double-float-header double-float.element-count subtag-double-float)
600;;; We could possibly have a one-digit bignum header when dealing
601;;; with "small bignums" in some bignum code. Like other cases of
602;;; non-normalized bignums, they should never escape from the lab.
603(define-header one-digit-bignum-header 1 subtag-bignum)
604(define-header two-digit-bignum-header 2 subtag-bignum)
605(define-header three-digit-bignum-header 3 subtag-bignum)
606(define-header four-digit-bignum-header 4 subtag-bignum)
607(define-header five-digit-bignum-header 5 subtag-bignum)
608(define-header symbol-header symbol.element-count subtag-symbol)
609(define-header value-cell-header value-cell.element-count subtag-value-cell)
610(define-header macptr-header macptr.element-count subtag-macptr)
611
612
613(defconstant yield-syscall
614 #+darwinppc-target -60
615 #+linuxppc-target #$__NR_sched_yield)
616)
617)
618
619
620
621
622
623
624(defun %kernel-global (sym)
625 (let* ((pos (position sym ppc::*ppc-kernel-globals* :test #'string=)))
626 (if pos
627 (- (+ symbol.size fulltag-misc (* (1+ pos) word-size-in-bytes)))
628 (error "Unknown kernel global : ~s ." sym))))
629
630(defmacro kernel-global (sym)
631 (let* ((pos (position sym ppc::*ppc-kernel-globals* :test #'string=)))
632 (if pos
633 (- (+ symbol.size fulltag-misc (* (1+ pos) word-size-in-bytes)))
634 (error "Unknown kernel global : ~s ." sym))))
635
636;;; The kernel imports things that are defined in various other
637;;; libraries for us. The objects in question are generally
638;;; fixnum-tagged; the entries in the "kernel-imports" vector are 8
639;;; bytes apart.
640(ccl::defenum (:prefix "KERNEL-IMPORT-" :start 0 :step word-size-in-bytes)
641 fd-setsize-bytes
642 do-fd-set
643 do-fd-clr
644 do-fd-is-set
645 do-fd-zero
646 MakeDataExecutable
647 GetSharedLibrary
648 FindSymbol
649 malloc
650 free
651 jvm-init
652 tcr-frame-ptr
653 register-xmacptr-dispose-function
654 open-debug-output
655 get-r-debug
656 restore-soft-stack-limit
657 egc-control
658 lisp-bug
659 NewThread
660 YieldToThread
661 DisposeThread
662 ThreadCurrentStackSpace
663 usage-exit
664 save-fp-context
665 restore-fp-context
666 put-altivec-registers
667 get-altivec-registers
668 new-semaphore
669 wait-on-semaphore
670 signal-semaphore
671 destroy-semaphore
672 new-recursive-lock
673 lock-recursive-lock
674 unlock-recursive-lock
675 destroy-recursive-lock
676 suspend-other-threads
677 resume-other-threads
678 suspend-tcr
679 resume-tcr
680 rwlock-new
681 rwlock-destroy
682 rwlock-rlock
683 rwlock-wlock
684 rwlock-unlock
685 recursive-lock-trylock
686 foreign-name-and-offset
687 lisp-read
688 lisp-write
689 lisp-open
690 lisp-fchmod
691 lisp-lseek
692 lisp-close
693 lisp-ftruncate
694 lisp-stat
695 lisp-fstat
696 lisp-futex
697 lisp-opendir
698 lisp-readdir
699 lisp-closedir
700 lisp-pipe
701 lisp-gettimeofday
702 lisp-sigexit
703)
704
705(defmacro nrs-offset (name)
706 (let* ((pos (position name ppc::*ppc-nilreg-relative-symbols* :test #'eq)))
707 (if pos (* (1- pos) symbol.size))))
708
709(defconstant canonical-nil-value (+ #x3000 symbol.size fulltag-misc))
710
711
712(defconstant reservation-discharge #x2008)
713
714(defparameter *ppc64-target-uvector-subtags*
715 `((:bignum . ,subtag-bignum)
716 (:ratio . ,subtag-ratio)
717 (:single-float . ,subtag-single-float)
718 (:double-float . ,subtag-double-float)
719 (:complex . ,subtag-complex )
720 (:symbol . ,subtag-symbol)
721 (:function . ,subtag-function )
722 (:code-vector . ,subtag-code-vector)
723 (:xcode-vector . ,subtag-xcode-vector)
724 (:macptr . ,subtag-macptr )
725 (:catch-frame . ,subtag-catch-frame)
726 (:struct . ,subtag-struct )
727 (:istruct . ,subtag-istruct )
728 (:pool . ,subtag-pool )
729 (:population . ,subtag-weak )
730 (:hash-vector . ,subtag-hash-vector )
731 (:package . ,subtag-package )
732 (:value-cell . ,subtag-value-cell)
733 (:instance . ,subtag-instance )
734 (:lock . ,subtag-lock )
735 (:basic-stream . ,subtag-basic-stream)
736 (:slot-vector . ,subtag-slot-vector)
737 (:simple-string . ,subtag-simple-base-string )
738 (:bit-vector . ,subtag-bit-vector )
739 (:signed-8-bit-vector . ,subtag-s8-vector )
740 (:unsigned-8-bit-vector . ,subtag-u8-vector )
741 (:signed-16-bit-vector . ,subtag-s16-vector )
742 (:unsigned-16-bit-vector . ,subtag-u16-vector )
743 (:signed-32-bit-vector . ,subtag-s32-vector )
744 (:unsigned-32-bit-vector . ,subtag-u32-vector )
745 (:fixnum-vector . ,subtag-fixnum-vector)
746 (:signed-64-bit-vector . ,subtag-s64-vector)
747 (:unsigned-64-bit-vector . ,subtag-u64-vector)
748 (:single-float-vector . ,subtag-single-float-vector)
749 (:double-float-vector . ,subtag-double-float-vector )
750 (:simple-vector . ,subtag-simple-vector )
751 (:vector-header . ,subtag-vectorH)
752 (:array-header . ,subtag-arrayH)))
753
754;;; This should return NIL unless it's sure of how the indicated
755;;; type would be represented (in particular, it should return
756;;; NIL if the element type is unknown or unspecified at compile-time.
757(defun ppc64-array-type-name-from-ctype (ctype)
758 (when (typep ctype 'ccl::array-ctype)
759 (let* ((element-type (ccl::array-ctype-element-type ctype)))
760 (typecase element-type
761 (ccl::class-ctype
762 (let* ((class (ccl::class-ctype-class element-type)))
763 (if (or (eq class ccl::*character-class*)
764 (eq class ccl::*base-char-class*)
765 (eq class ccl::*standard-char-class*))
766 :simple-string
767 :simple-vector)))
768 (ccl::numeric-ctype
769 (if (eq (ccl::numeric-ctype-complexp element-type) :complex)
770 :simple-vector
771 (case (ccl::numeric-ctype-class element-type)
772 (integer
773 (let* ((low (ccl::numeric-ctype-low element-type))
774 (high (ccl::numeric-ctype-high element-type)))
775 (cond ((or (null low) (null high))
776 :simple-vector)
777 ((and (>= low 0) (<= high 1))
778 :bit-vector)
779 ((and (>= low 0) (<= high 255))
780 :unsigned-8-bit-vector)
781 ((and (>= low 0) (<= high 65535))
782 :unsigned-16-bit-vector)
783 ((and (>= low 0) (<= high #xffffffff))
784 :unsigned-32-bit-vector)
785 ((and (>= low 0) (<= high #xffffffffffffffff))
786 :unsigned-64-bit-vector)
787 ((and (>= low -128) (<= high 127))
788 :signed-8-bit-vector)
789 ((and (>= low -32768) (<= high 32767))
790 :signed-16-bit-vector)
791 ((and (>= low (ash -1 31)) (<= high (1- (ash 1 31))))
792 :signed-32-bit-vector)
793 ((and (>= low target-most-negative-fixnum)
794 (<= high target-most-positive-fixnum))
795 :fixnum-vector)
796 ((and (>= low (ash -1 63)) (<= high (1- (ash 1 63))))
797 :signed-64-bit-vector)
798 (t :simple-vector))))
799 (float
800 (case (ccl::numeric-ctype-format element-type)
801 ((double-float long-float) :double-float-vector)
802 ((single-float short-float) :single-float-vector)
803 (t :simple-vector)))
804 (t :simple-vector))))
805 (ccl::unknown-ctype)
806 (ccl::named-ctype
807 (if (eq element-type ccl::*universal-type*)
808 :simple-vector))
809 (t)))))
810
811(defun ppc64-misc-byte-count (subtag element-count)
812 (declare (fixnum subtag))
813 (if (= lowtag-nodeheader (logand subtag lowtagmask))
814 (ash element-count 3)
815 (case (logand subtag fulltagmask)
816 (#.ivector-class-64-bit (ash element-count 3))
817 (#.ivector-class-32-bit (ash element-count 2))
818 (#.ivector-class-8-bit element-count)
819 (t
820 (if (= subtag subtag-bit-vector)
821 (ash (+ 7 element-count) -3)
822 (ash element-count 1))))))
823
824(defparameter *ppc64-target-arch*
825 (arch::make-target-arch :name :ppc64
826 :lisp-node-size 8
827 :nil-value canonical-nil-value
828 :fixnum-shift fixnumshift
829 :most-positive-fixnum (1- (ash 1 (1- (- 64 fixnumshift))))
830 :most-negative-fixnum (- (ash 1 (1- (- 64 fixnumshift))))
831 :misc-data-offset misc-data-offset
832 :misc-dfloat-offset misc-dfloat-offset
833 :nbits-in-word 64
834 :ntagbits 4
835 :nlisptagbits 3
836 :uvector-subtags *ppc64-target-uvector-subtags*
837 :max-64-bit-constant-index max-64-bit-constant-index
838 :max-32-bit-constant-index max-32-bit-constant-index
839 :max-16-bit-constant-index max-16-bit-constant-index
840 :max-8-bit-constant-index max-8-bit-constant-index
841 :max-1-bit-constant-index max-1-bit-constant-index
842 :word-shift 3
843 :code-vector-prefix '(#$"CODE")
844 :gvector-types '(:ratio :complex :symbol :function
845 :catch-frame :struct :istruct
846 :pool :population :hash-vector
847 :package :value-cell :instance
848 :lock :slot-vector
849 :simple-vector)
850 :1-bit-ivector-types '(:bit-vector)
851 :8-bit-ivector-types '(:signed-8-bit-vector
852 :unsigned-8-bit-vector)
853 :16-bit-ivector-types '(:signed-16-bit-vector
854 :unsigned-16-bit-vector)
855 :32-bit-ivector-types '(:signed-32-bit-vector
856 :unsigned-32-bit-vector
857 :single-float-vector
858 :double-float
859 :bignum
860 :simple-string)
861 :64-bit-ivector-types '(:double-float-vector
862 :unsigned-64-bit-vector
863 :signed-64-bit-vector
864 :fixnum-vector)
865 :array-type-name-from-ctype-function
866 #'ppc64-array-type-name-from-ctype
867 :package-name "PPC64"
868 :t-offset t-offset
869 :array-data-size-function #'ppc64-misc-byte-count
870 :numeric-type-name-to-typecode-function
871 #'(lambda (type-name)
872 (ecase type-name
873 (fixnum tag-fixnum)
874 (bignum subtag-bignum)
875 ((short-float single-float) subtag-single-float)
876 ((long-float double-float) subtag-double-float)
877 (ratio subtag-ratio)
878 (complex subtag-complex)))
879 :subprims-base ppc::*ppc-subprims-base*
880 :subprims-shift ppc::*ppc-subprims-shift*
881 :subprims-table ppc::*ppc-subprims*
882 :primitive->subprims `(((0 . 23) . ,(ccl::%subprim-name->offset '.SPbuiltin-plus ppc::*ppc-subprims*)))
883 :unbound-marker-value unbound-marker
884 :slot-unbound-marker-value slot-unbound-marker
885 :fixnum-tag tag-fixnum
886 :single-float-tag subtag-single-float
887 :single-float-tag-is-subtag nil
888 :double-float-tag subtag-double-float
889 :cons-tag fulltag-cons
890 :null-tag subtag-symbol
891 :symbol-tag subtag-symbol
892 :symbol-tag-is-subtag t
893 :function-tag subtag-function
894 :function-tag-is-subtag t
895 :big-endian t
896 :misc-subtag-offset misc-subtag-offset
897 :car-offset cons.car
898 :cdr-offset cons.cdr
899 :subtag-char subtag-character
900 :charcode-shift charcode-shift
901 :fulltagmask fulltagmask
902 :fulltag-misc fulltag-misc
903 :char-code-limit #x110000
904 ))
905
906;;; arch macros
907(defmacro defppc64archmacro (name lambda-list &body body)
908 `(arch::defarchmacro :ppc64 ,name ,lambda-list ,@body))
909
910(defppc64archmacro ccl::%make-sfloat ()
911 (error "~s shouldn't be used in code targeting :PPC64" 'ccl::%make-sfloat))
912
913(defppc64archmacro ccl::%make-dfloat ()
914 `(ccl::%alloc-misc ppc64::double-float.element-count ppc64::subtag-double-float))
915
916(defppc64archmacro ccl::%numerator (x)
917 `(ccl::%svref ,x ppc64::ratio.numer-cell))
918
919(defppc64archmacro ccl::%denominator (x)
920 `(ccl::%svref ,x ppc64::ratio.denom-cell))
921
922(defppc64archmacro ccl::%realpart (x)
923 `(ccl::%svref ,x ppc64::complex.realpart-cell))
924
925(defppc64archmacro ccl::%imagpart (x)
926 `(ccl::%svref ,x ppc64::complex.imagpart-cell))
927
928;;;
929(defppc64archmacro ccl::%get-single-float-from-double-ptr (ptr offset)
930 `(ccl::%double-float->short-float (ccl::%get-double-float ,ptr ,offset)))
931
932(defppc64archmacro ccl::codevec-header-p (word)
933 `(eql ,word #$"CODE"))
934
935;;;
936
937(defppc64archmacro ccl::immediate-p-macro (thing)
938 (let* ((tag (gensym)))
939 `(let* ((,tag (ccl::lisptag ,thing)))
940 (declare (fixnum ,tag))
941 (or (= ,tag ppc64::tag-fixnum)
942 (= (logand ,tag ppc64::lowtagmask) ppc64::lowtag-imm)))))
943
944(defppc64archmacro ccl::hashed-by-identity (thing)
945 (let* ((typecode (gensym)))
946 `(let* ((,typecode (ccl::typecode ,thing)))
947 (declare (fixnum ,typecode))
948 (or
949 (= ,typecode ppc64::tag-fixnum)
950 (= (logand ,typecode ppc64::lowtagmask) ppc64::lowtag-imm)
951 (= ,typecode ppc64::subtag-symbol)
952 (= ,typecode ppc64::subtag-instance)))))
953
954;;;
955(defppc64archmacro ccl::%get-kernel-global (name)
956 `(ccl::%fixnum-ref 0 (+ ,(ccl::target-nil-value)
957 ,(%kernel-global
958 (if (ccl::quoted-form-p name)
959 (cadr name)
960 name)))))
961
962(defppc64archmacro ccl::%get-kernel-global-ptr (name dest)
963 `(ccl::%setf-macptr
964 ,dest
965 (ccl::%fixnum-ref-macptr 0 (+ ,(ccl::target-nil-value)
966 ,(%kernel-global
967 (if (ccl::quoted-form-p name)
968 (cadr name)
969 name))))))
970
971(defppc64archmacro ccl::%target-kernel-global (name)
972 `(ppc64::%kernel-global ,name))
973
974(defppc64archmacro ccl::lfun-vector (fn)
975 fn)
976
977(defppc64archmacro ccl::lfun-vector-lfun (lfv)
978 lfv)
979
980(defppc64archmacro ccl::area-code ()
981 area.code)
982
983(defppc64archmacro ccl::area-succ ()
984 area.succ)
985
986
987(defppc64archmacro ccl::nth-immediate (f i)
988 `(ccl::%svref ,f ,i))
989
990(defppc64archmacro ccl::set-nth-immediate (f i new)
991 `(setf (ccl::%svref ,f ,i) ,new))
992
993
994(defppc64archmacro ccl::symptr->symvector (s)
995 s)
996
997(defppc64archmacro ccl::symvector->symptr (s)
998 s)
999
1000(defppc64archmacro ccl::function-to-function-vector (f)
1001 f)
1002
1003(defppc64archmacro ccl::function-vector-to-function (v)
1004 v)
1005
1006(defppc64archmacro ccl::with-ffcall-results ((buf) &body body)
1007 (let* ((size (+ (* 8 8) (* 13 8))))
1008 `(ccl::%stack-block ((,buf ,size))
1009 ,@body)))
1010
1011(defconstant arg-check-trap-pc-limit 8)
1012
1013(provide "PPC64-ARCH")
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