1 ! Copyright (C) 2007, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: bootstrap.image.private compiler.constants
4 compiler.units cpu.x86.assembler cpu.x86.assembler.operands
5 kernel kernel.private layouts locals.backend make math
6 math.private namespaces sequences slots.private vocabs ;
13 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
14 ! Bump profiling counter
15 temp0 profile-count-offset [+] 1 tag-fixnum ADD
17 temp0 temp0 word-code-offset [+] MOV
19 temp0 compiled-header-size ADD
22 ] jit-profiling jit-define
26 temp0 0 MOV rc-absolute-cell rt-this jit-rel
27 ! save stack frame size
32 stack-reg stack-frame-size 3 bootstrap-cells - SUB
33 ] jit-prolog jit-define
37 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
38 ! increment datastack pointer
39 ds-reg bootstrap-cell ADD
40 ! store literal on datastack
42 ] jit-push-immediate jit-define
45 temp3 0 MOV rc-absolute-cell rt-here jit-rel
46 0 JMP rc-relative rt-xt-pic-tail jit-rel
47 ] jit-word-jump jit-define
50 0 CALL rc-relative rt-xt-pic jit-rel
51 ] jit-word-call jit-define
54 0 JMP rc-relative rt-xt jit-rel
55 ] jit-word-special jit-define
61 ds-reg bootstrap-cell SUB
62 ! compare boolean with f
63 temp0 \ f type-number CMP
64 ! jump to true branch if not equal
65 0 JNE rc-relative rt-xt jit-rel
66 ! jump to false branch if equal
67 0 JMP rc-relative rt-xt jit-rel
71 rs-reg bootstrap-cell ADD
73 ds-reg bootstrap-cell SUB
77 rs-reg 2 bootstrap-cells ADD
79 temp1 ds-reg -1 bootstrap-cells [+] MOV
80 ds-reg 2 bootstrap-cells SUB
82 rs-reg -1 bootstrap-cells [+] temp1 MOV ;
85 rs-reg 3 bootstrap-cells ADD
87 temp1 ds-reg -1 bootstrap-cells [+] MOV
88 temp2 ds-reg -2 bootstrap-cells [+] MOV
89 ds-reg 3 bootstrap-cells SUB
91 rs-reg -1 bootstrap-cells [+] temp1 MOV
92 rs-reg -2 bootstrap-cells [+] temp2 MOV ;
95 ds-reg bootstrap-cell ADD
97 rs-reg bootstrap-cell SUB
101 ds-reg 2 bootstrap-cells ADD
103 temp1 rs-reg -1 bootstrap-cells [+] MOV
104 rs-reg 2 bootstrap-cells SUB
106 ds-reg -1 bootstrap-cells [+] temp1 MOV ;
109 ds-reg 3 bootstrap-cells ADD
111 temp1 rs-reg -1 bootstrap-cells [+] MOV
112 temp2 rs-reg -2 bootstrap-cells [+] MOV
113 rs-reg 3 bootstrap-cells SUB
115 ds-reg -1 bootstrap-cells [+] temp1 MOV
116 ds-reg -2 bootstrap-cells [+] temp2 MOV ;
120 0 CALL rc-relative rt-xt jit-rel
126 0 CALL rc-relative rt-xt jit-rel
128 ] jit-2dip jit-define
132 0 CALL rc-relative rt-xt jit-rel
134 ] jit-3dip jit-define
136 : prepare-(execute) ( -- operand )
140 ds-reg bootstrap-cell SUB
142 temp0 word-xt-offset [+] ;
144 [ prepare-(execute) JMP ] jit-execute-jump jit-define
146 [ prepare-(execute) CALL ] jit-execute-call jit-define
150 stack-reg stack-frame-size bootstrap-cell - ADD
151 ] jit-epilog jit-define
153 [ 0 RET ] jit-return jit-define
155 ! ! ! Polymorphic inline caches
157 ! The PIC stubs are not permitted to touch temp3.
159 ! Load a value from a stack position
161 temp1 ds-reg HEX: ffffffff [+] MOV rc-absolute rt-untagged jit-rel
162 ] pic-load jit-define
166 temp1 tag-mask get AND
167 temp1 tag-bits get SHL ;
169 [ load-tag ] pic-tag jit-define
171 ! The 'make' trick lets us compute the jump distance for the
172 ! conditional branches there
178 temp1 tuple type-number tag-fixnum CMP
179 [ temp1 temp0 tuple type-number neg bootstrap-cell + [+] MOV ] { } make
180 [ length JNE ] [ % ] bi
181 ] pic-tuple jit-define
184 temp1 HEX: ffffffff CMP rc-absolute rt-immediate jit-rel
185 ] pic-check-tag jit-define
188 temp2 HEX: ffffffff MOV rc-absolute-cell rt-immediate jit-rel
190 ] pic-check-tuple jit-define
192 [ 0 JE rc-relative rt-xt jit-rel ] pic-hit jit-define
194 ! ! ! Megamorphic caches
198 temp0 0 MOV rc-absolute-cell rt-immediate jit-rel
199 ! key = hashcode(class)
201 bootstrap-cell 4 = [ temp2 1 SHR ] when
202 ! key &= cache.length - 1
203 temp2 mega-cache-size get 1 - bootstrap-cell * AND
204 ! cache += array-start-offset
205 temp0 array-start-offset ADD
208 ! if(get(cache) == class)
210 bootstrap-cell 4 = 14 22 ? JNE ! Yuck!
211 ! megamorphic_cache_hits++
212 temp1 0 MOV rc-absolute-cell rt-megamorphic-cache-hits jit-rel
214 ! goto get(cache + bootstrap-cell)
215 temp0 temp0 bootstrap-cell [+] MOV
216 temp0 word-xt-offset [+] JMP
217 ! fall-through on miss
218 ] mega-lookup jit-define
221 safe-reg 0 MOV rc-absolute-cell rt-xt jit-rel
223 ] callback-stub jit-define
227 ! Quotations and words
232 ds-reg bootstrap-cell SUB
234 arg2 0 MOV 0 jit-literal rc-absolute-cell rt-vm jit-rel
236 arg1 quot-xt-offset [+] JMP
237 ] \ (call) define-sub-primitive
244 temp0 tag-mask get AND
246 temp0 tag-bits get SHL
249 ] \ tag define-sub-primitive
254 ! adjust stack pointer
255 ds-reg bootstrap-cell SUB
258 ! turn slot number into offset
261 temp1 tag-bits get SHR
262 temp1 tag-bits get SHL
264 temp0 temp1 temp0 [+] MOV
267 ] \ slot define-sub-primitive
271 ds-reg bootstrap-cell SUB
272 ] \ drop define-sub-primitive
275 ds-reg 2 bootstrap-cells SUB
276 ] \ 2drop define-sub-primitive
279 ds-reg 3 bootstrap-cells SUB
280 ] \ 3drop define-sub-primitive
284 ds-reg bootstrap-cell ADD
286 ] \ dup define-sub-primitive
290 temp1 ds-reg bootstrap-cell neg [+] MOV
291 ds-reg 2 bootstrap-cells ADD
293 ds-reg bootstrap-cell neg [+] temp1 MOV
294 ] \ 2dup define-sub-primitive
298 temp1 ds-reg -1 bootstrap-cells [+] MOV
299 temp3 ds-reg -2 bootstrap-cells [+] MOV
300 ds-reg 3 bootstrap-cells ADD
302 ds-reg -1 bootstrap-cells [+] temp1 MOV
303 ds-reg -2 bootstrap-cells [+] temp3 MOV
304 ] \ 3dup define-sub-primitive
308 ds-reg bootstrap-cell SUB
310 ] \ nip define-sub-primitive
314 ds-reg 2 bootstrap-cells SUB
316 ] \ 2nip define-sub-primitive
319 temp0 ds-reg -1 bootstrap-cells [+] MOV
320 ds-reg bootstrap-cell ADD
322 ] \ over define-sub-primitive
325 temp0 ds-reg -2 bootstrap-cells [+] MOV
326 ds-reg bootstrap-cell ADD
328 ] \ pick define-sub-primitive
332 temp1 ds-reg -1 bootstrap-cells [+] MOV
334 ds-reg bootstrap-cell ADD
336 ] \ dupd define-sub-primitive
340 temp1 ds-reg bootstrap-cell neg [+] MOV
341 ds-reg bootstrap-cell neg [+] temp0 MOV
343 ] \ swap define-sub-primitive
346 temp0 ds-reg -1 bootstrap-cells [+] MOV
347 temp1 ds-reg -2 bootstrap-cells [+] MOV
348 ds-reg -2 bootstrap-cells [+] temp0 MOV
349 ds-reg -1 bootstrap-cells [+] temp1 MOV
350 ] \ swapd define-sub-primitive
354 temp1 ds-reg -1 bootstrap-cells [+] MOV
355 temp3 ds-reg -2 bootstrap-cells [+] MOV
356 ds-reg -2 bootstrap-cells [+] temp1 MOV
357 ds-reg -1 bootstrap-cells [+] temp0 MOV
359 ] \ rot define-sub-primitive
363 temp1 ds-reg -1 bootstrap-cells [+] MOV
364 temp3 ds-reg -2 bootstrap-cells [+] MOV
365 ds-reg -2 bootstrap-cells [+] temp0 MOV
366 ds-reg -1 bootstrap-cells [+] temp3 MOV
368 ] \ -rot define-sub-primitive
370 [ jit->r ] \ load-local define-sub-primitive
373 : jit-compare ( insn -- )
376 temp3 0 MOV rc-absolute-cell rt-immediate jit-rel
378 temp1 \ f type-number MOV
381 ! adjust stack pointer
382 ds-reg bootstrap-cell SUB
383 ! compare with second value
386 [ temp1 temp3 ] dip execute( dst src -- )
388 ds-reg [] temp1 MOV ;
390 : define-jit-compare ( insn word -- )
391 [ [ jit-compare ] curry ] dip define-sub-primitive ;
393 \ CMOVE \ eq? define-jit-compare
394 \ CMOVGE \ fixnum>= define-jit-compare
395 \ CMOVLE \ fixnum<= define-jit-compare
396 \ CMOVG \ fixnum> define-jit-compare
397 \ CMOVL \ fixnum< define-jit-compare
400 : jit-math ( insn -- )
404 ds-reg bootstrap-cell SUB
406 [ ds-reg [] temp0 ] dip execute( dst src -- ) ;
408 [ \ ADD jit-math ] \ fixnum+fast define-sub-primitive
410 [ \ SUB jit-math ] \ fixnum-fast define-sub-primitive
416 ds-reg bootstrap-cell SUB
420 temp0 tag-bits get SAR
425 ] \ fixnum*fast define-sub-primitive
427 [ \ AND jit-math ] \ fixnum-bitand define-sub-primitive
429 [ \ OR jit-math ] \ fixnum-bitor define-sub-primitive
431 [ \ XOR jit-math ] \ fixnum-bitxor define-sub-primitive
437 ds-reg [] tag-mask get XOR
438 ] \ fixnum-bitnot define-sub-primitive
442 shift-arg ds-reg [] MOV
444 shift-arg tag-bits get SAR
445 ! adjust stack pointer
446 ds-reg bootstrap-cell SUB
451 ! compute positive shift value in temp1
454 ! compute negative shift value in temp3
456 temp3 tag-mask get bitnot AND
458 ! if shift count was negative, move temp0 to temp1
462 ] \ fixnum-shift-fast define-sub-primitive
464 : jit-fixnum-/mod ( -- )
465 ! load second parameter
467 ! load first parameter
468 div-arg ds-reg bootstrap-cell neg [+] MOV
472 mod-arg bootstrap-cell-bits 1 - SAR
478 ! adjust stack pointer
479 ds-reg bootstrap-cell SUB
481 ds-reg [] mod-arg MOV
482 ] \ fixnum-mod define-sub-primitive
486 ! adjust stack pointer
487 ds-reg bootstrap-cell SUB
489 div-arg tag-bits get SHL
491 ds-reg [] div-arg MOV
492 ] \ fixnum/i-fast define-sub-primitive
497 div-arg tag-bits get SHL
499 ds-reg [] mod-arg MOV
500 ds-reg bootstrap-cell neg [+] div-arg MOV
501 ] \ fixnum/mod-fast define-sub-primitive
505 ds-reg bootstrap-cell SUB
507 temp0 tag-mask get AND
508 temp0 \ f type-number MOV
509 temp1 1 tag-fixnum MOV
512 ] \ both-fixnums? define-sub-primitive
517 ! turn local number into offset
520 temp0 rs-reg temp0 [+] MOV
523 ] \ get-local define-sub-primitive
528 ! adjust stack pointer
529 ds-reg bootstrap-cell SUB
530 ! turn local number into offset
532 ! decrement retain stack pointer
534 ] \ drop-locals define-sub-primitive
536 [ "bootstrap.x86" forget-vocab ] with-compilation-unit