1 /* -----------------------------------------------------------------------------
2 * $Id: PrimOps.h,v 1.25 1999/04/23 13:54:12 simonm Exp $
4 * (c) The GHC Team, 1998-1999
6 * Macros for primitive operations in STG-ish C code.
8 * ---------------------------------------------------------------------------*/
13 /* -----------------------------------------------------------------------------
15 -------------------------------------------------------------------------- */
17 #define gtCharzh(r,a,b) r=(I_)((a)> (b))
18 #define geCharzh(r,a,b) r=(I_)((a)>=(b))
19 #define eqCharzh(r,a,b) r=(I_)((a)==(b))
20 #define neCharzh(r,a,b) r=(I_)((a)!=(b))
21 #define ltCharzh(r,a,b) r=(I_)((a)< (b))
22 #define leCharzh(r,a,b) r=(I_)((a)<=(b))
24 /* Int comparisons: >#, >=# etc */
25 #define zgzh(r,a,b) r=(I_)((I_)(a) >(I_)(b))
26 #define zgzezh(r,a,b) r=(I_)((I_)(a)>=(I_)(b))
27 #define zezezh(r,a,b) r=(I_)((I_)(a)==(I_)(b))
28 #define zszezh(r,a,b) r=(I_)((I_)(a)!=(I_)(b))
29 #define zlzh(r,a,b) r=(I_)((I_)(a) <(I_)(b))
30 #define zlzezh(r,a,b) r=(I_)((I_)(a)<=(I_)(b))
32 #define gtWordzh(r,a,b) r=(I_)((W_)(a) >(W_)(b))
33 #define geWordzh(r,a,b) r=(I_)((W_)(a)>=(W_)(b))
34 #define eqWordzh(r,a,b) r=(I_)((W_)(a)==(W_)(b))
35 #define neWordzh(r,a,b) r=(I_)((W_)(a)!=(W_)(b))
36 #define ltWordzh(r,a,b) r=(I_)((W_)(a) <(W_)(b))
37 #define leWordzh(r,a,b) r=(I_)((W_)(a)<=(W_)(b))
39 #define gtAddrzh(r,a,b) r=(I_)((a) >(b))
40 #define geAddrzh(r,a,b) r=(I_)((a)>=(b))
41 #define eqAddrzh(r,a,b) r=(I_)((a)==(b))
42 #define neAddrzh(r,a,b) r=(I_)((a)!=(b))
43 #define ltAddrzh(r,a,b) r=(I_)((a) <(b))
44 #define leAddrzh(r,a,b) r=(I_)((a)<=(b))
46 #define gtFloatzh(r,a,b) r=(I_)((a)> (b))
47 #define geFloatzh(r,a,b) r=(I_)((a)>=(b))
48 #define eqFloatzh(r,a,b) r=(I_)((a)==(b))
49 #define neFloatzh(r,a,b) r=(I_)((a)!=(b))
50 #define ltFloatzh(r,a,b) r=(I_)((a)< (b))
51 #define leFloatzh(r,a,b) r=(I_)((a)<=(b))
53 /* Double comparisons: >##, >=#@ etc */
54 #define zgzhzh(r,a,b) r=(I_)((a) >(b))
55 #define zgzezhzh(r,a,b) r=(I_)((a)>=(b))
56 #define zezezhzh(r,a,b) r=(I_)((a)==(b))
57 #define zszezhzh(r,a,b) r=(I_)((a)!=(b))
58 #define zlzhzh(r,a,b) r=(I_)((a) <(b))
59 #define zlzezhzh(r,a,b) r=(I_)((a)<=(b))
61 /* used by returning comparison primops, defined in Prims.hc. */
62 extern DLL_IMPORT_RTS const StgClosure *PrelBase_Bool_closure_tbl[];
64 /* -----------------------------------------------------------------------------
66 -------------------------------------------------------------------------- */
68 #define ordzh(r,a) r=(I_)((W_) (a))
69 #define chrzh(r,a) r=(StgChar)((W_)(a))
71 /* -----------------------------------------------------------------------------
73 -------------------------------------------------------------------------- */
75 I_ stg_div (I_ a, I_ b);
77 #define zpzh(r,a,b) r=(a)+(b)
78 #define zmzh(r,a,b) r=(a)-(b)
79 #define ztzh(r,a,b) r=(a)*(b)
80 #define quotIntzh(r,a,b) r=(a)/(b)
81 #define zszh(r,a,b) r=ULTRASAFESTGCALL2(I_,(void *, I_, I_),stg_div,(a),(b))
82 #define remIntzh(r,a,b) r=(a)%(b)
83 #define negateIntzh(r,a) r=-(a)
85 /* -----------------------------------------------------------------------------
86 * Int operations with carry.
87 * -------------------------------------------------------------------------- */
89 /* With some bit-twiddling, we can define int{Add,Sub}Czh portably in
90 * C, and without needing any comparisons. This may not be the
91 * fastest way to do it - if you have better code, please send it! --SDM
93 * Return : r = a + b, c = 0 if no overflow, 1 on overflow.
95 * We currently don't make use of the r value if c is != 0 (i.e.
96 * overflow), we just convert to big integers and try again. This
97 * could be improved by making r and c the correct values for
98 * plugging into a new J#.
100 #define addIntCzh(r,c,a,b) \
102 c = ((StgWord)(~(a^b) & (a^r))) \
103 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
107 #define subIntCzh(r,c,a,b) \
109 c = ((StgWord)((a^b) & (a^r))) \
110 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
113 /* Multiply with overflow checking.
115 * This is slightly more tricky - the usual sign rules for add/subtract
118 * On x86 hardware we use a hand-crafted assembly fragment to do the job.
120 * On other 32-bit machines we use gcc's 'long long' types, finding
121 * overflow with some careful bit-twiddling.
123 * On 64-bit machines where gcc's 'long long' type is also 64-bits,
124 * we use a crude approximation, testing whether either operand is
125 * larger than 32-bits; if neither is, then we go ahead with the
131 #define mulIntCzh(r,c,a,b) \
133 __asm__("xor %1,%1\n\t \
138 : "=r" (r), "=r" (c) : "r" (a), "0" (b)); \
141 #elif SIZEOF_VOID_P == 4
143 #ifdef WORDS_BIGENDIAN
156 #define mulIntCzh(r,c,a,b) \
159 z.l = (StgInt64)a * (StgInt64)b; \
162 if (c == 0 || c == -1) { \
163 c = ((StgWord)((a^b) ^ r)) \
164 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
167 /* Careful: the carry calculation above is extremely delicate. Make sure
168 * you test it thoroughly after changing it.
173 #define HALF_INT (1 << (BITS_PER_BYTE * sizeof(I_) / 2))
175 #define stg_abs(a) ((a) < 0 ? -(a) : (a))
177 #define mulIntCzh(r,c,a,b) \
179 if (stg_abs(a) >= HALF_INT \
180 stg_abs(b) >= HALF_INT) { \
189 /* -----------------------------------------------------------------------------
191 -------------------------------------------------------------------------- */
193 #define quotWordzh(r,a,b) r=((W_)a)/((W_)b)
194 #define remWordzh(r,a,b) r=((W_)a)%((W_)b)
196 #define andzh(r,a,b) r=(a)&(b)
197 #define orzh(r,a,b) r=(a)|(b)
198 #define xorzh(r,a,b) r=(a)^(b)
199 #define notzh(r,a) r=~(a)
201 #define shiftLzh(r,a,b) r=(a)<<(b)
202 #define shiftRLzh(r,a,b) r=(a)>>(b)
203 #define iShiftLzh(r,a,b) r=(a)<<(b)
204 /* Right shifting of signed quantities is not portable in C, so
205 the behaviour you'll get from using these primops depends
206 on the whatever your C compiler is doing. ToDo: fix/document. -- sof 8/98
208 #define iShiftRAzh(r,a,b) r=(a)>>(b)
209 #define iShiftRLzh(r,a,b) r=(a)>>(b)
211 #define int2Wordzh(r,a) r=(W_)(a)
212 #define word2Intzh(r,a) r=(I_)(a)
214 /* -----------------------------------------------------------------------------
216 -------------------------------------------------------------------------- */
218 #define int2Addrzh(r,a) r=(A_)(a)
219 #define addr2Intzh(r,a) r=(I_)(a)
221 #define indexCharOffAddrzh(r,a,i) r= ((C_ *)(a))[i]
222 #define indexIntOffAddrzh(r,a,i) r= ((I_ *)(a))[i]
223 #define indexAddrOffAddrzh(r,a,i) r= ((PP_)(a))[i]
224 #define indexFloatOffAddrzh(r,a,i) r= PK_FLT((P_) (((StgFloat *)(a)) + i))
225 #define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
226 #define indexStablePtrOffAddrzh(r,a,i) r= ((StgStablePtr *)(a))[i]
227 #ifdef SUPPORT_LONG_LONGS
228 #define indexInt64OffAddrzh(r,a,i) r= ((LI_ *)(a))[i]
229 #define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
232 #define writeCharOffAddrzh(a,i,v) ((C_ *)(a))[i] = (v)
233 #define writeIntOffAddrzh(a,i,v) ((I_ *)(a))[i] = (v)
234 #define writeWordOffAddrzh(a,i,v) ((W_ *)(a))[i] = (v)
235 #define writeAddrOffAddrzh(a,i,v) ((PP_)(a))[i] = (v)
236 #define writeForeignObjOffAddrzh(a,i,v) ((PP_)(a))[i] = ForeignObj_CLOSURE_DATA(v)
237 #define writeFloatOffAddrzh(a,i,v) ASSIGN_FLT((P_) (((StgFloat *)(a)) + i),v)
238 #define writeDoubleOffAddrzh(a,i,v) ASSIGN_DBL((P_) (((StgDouble *)(a)) + i),v)
239 #define writeStablePtrOffAddrzh(a,i,v) ((StgStablePtr *)(a))[i] = (v)
240 #ifdef SUPPORT_LONG_LONGS
241 #define writeInt64OffAddrzh(a,i,v) ((LI_ *)(a))[i] = (v)
242 #define writeWord64OffAddrzh(a,i,v) ((LW_ *)(a))[i] = (v)
245 /* -----------------------------------------------------------------------------
247 -------------------------------------------------------------------------- */
249 #define plusFloatzh(r,a,b) r=(a)+(b)
250 #define minusFloatzh(r,a,b) r=(a)-(b)
251 #define timesFloatzh(r,a,b) r=(a)*(b)
252 #define divideFloatzh(r,a,b) r=(a)/(b)
253 #define negateFloatzh(r,a) r=-(a)
255 #define int2Floatzh(r,a) r=(StgFloat)(a)
256 #define float2Intzh(r,a) r=(I_)(a)
258 #define expFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,exp,a)
259 #define logFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,log,a)
260 #define sqrtFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sqrt,a)
261 #define sinFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sin,a)
262 #define cosFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,cos,a)
263 #define tanFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,tan,a)
264 #define asinFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,asin,a)
265 #define acosFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,acos,a)
266 #define atanFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,atan,a)
267 #define sinhFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sinh,a)
268 #define coshFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,cosh,a)
269 #define tanhFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,tanh,a)
270 #define powerFloatzh(r,a,b) r=(StgFloat) RET_PRIM_STGCALL2(StgDouble,pow,a,b)
272 /* -----------------------------------------------------------------------------
274 -------------------------------------------------------------------------- */
276 #define zpzhzh(r,a,b) r=(a)+(b)
277 #define zmzhzh(r,a,b) r=(a)-(b)
278 #define ztzhzh(r,a,b) r=(a)*(b)
279 #define zszhzh(r,a,b) r=(a)/(b)
280 #define negateDoublezh(r,a) r=-(a)
282 #define int2Doublezh(r,a) r=(StgDouble)(a)
283 #define double2Intzh(r,a) r=(I_)(a)
285 #define float2Doublezh(r,a) r=(StgDouble)(a)
286 #define double2Floatzh(r,a) r=(StgFloat)(a)
288 #define expDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,exp,a)
289 #define logDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,log,a)
290 #define sqrtDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sqrt,a)
291 #define sinDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sin,a)
292 #define cosDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,cos,a)
293 #define tanDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,tan,a)
294 #define asinDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,asin,a)
295 #define acosDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,acos,a)
296 #define atanDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,atan,a)
297 #define sinhDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sinh,a)
298 #define coshDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,cosh,a)
299 #define tanhDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,tanh,a)
301 #define ztztzhzh(r,a,b) r=(StgDouble) RET_PRIM_STGCALL2(StgDouble,pow,a,b)
303 /* -----------------------------------------------------------------------------
305 -------------------------------------------------------------------------- */
307 /* We can do integer2Int and cmpInteger inline, since they don't need
308 * to allocate any memory.
311 #define integer2Intzh(r, sa,da) \
314 arg._mp_size = (sa); \
315 arg._mp_alloc = ((StgArrWords *)da)->words; \
316 arg._mp_d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
318 (r) = RET_PRIM_STGCALL1(I_,mpz_get_si,&arg); \
321 #define integer2Wordzh(r, sa,da) \
324 arg._mp_size = (sa); \
325 arg._mp_alloc = ((StgArrWords *)da)->words; \
326 arg._mp_d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
328 (r) = RET_PRIM_STGCALL1(I_,mpz_get_ui,&arg); \
331 #define cmpIntegerzh(r, s1,d1, s2,d2) \
335 arg1._mp_size = (s1); \
336 arg1._mp_alloc= ((StgArrWords *)d1)->words; \
337 arg1._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d1)); \
338 arg2._mp_size = (s2); \
339 arg2._mp_alloc= ((StgArrWords *)d2)->words; \
340 arg2._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d2)); \
342 (r) = RET_PRIM_STGCALL2(I_,mpz_cmp,&arg1,&arg2); \
345 #define cmpIntegerIntzh(r, s,d, i) \
348 arg._mp_size = (s); \
349 arg._mp_alloc = ((StgArrWords *)d)->words; \
350 arg._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d)); \
352 (r) = RET_PRIM_STGCALL2(I_,mpz_cmp_si,&arg,i); \
355 /* The rest are all out-of-line: -------- */
357 /* Integer arithmetic */
358 EF_(plusIntegerzh_fast);
359 EF_(minusIntegerzh_fast);
360 EF_(timesIntegerzh_fast);
361 EF_(gcdIntegerzh_fast);
362 EF_(quotRemIntegerzh_fast);
363 EF_(divModIntegerzh_fast);
366 EF_(int2Integerzh_fast);
367 EF_(word2Integerzh_fast);
368 EF_(addr2Integerzh_fast);
370 /* Floating-point decodings */
371 EF_(decodeFloatzh_fast);
372 EF_(decodeDoublezh_fast);
374 /* -----------------------------------------------------------------------------
376 -------------------------------------------------------------------------- */
378 #ifdef SUPPORT_LONG_LONGS
380 #define integerToWord64zh(r, sa,da) \
381 { unsigned long int* d; \
385 d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
386 aa = ((StgArrWords *)da)->words; \
389 } else if ( (aa) == 1) { \
392 res = (LW_)d[0] + (LW_)d[1] * 0x100000000ULL; \
397 #define integerToInt64zh(r, sa,da) \
398 { unsigned long int* d; \
402 d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
403 aa = ((StgArrWords *)da)->words; \
406 } else if ( (aa) == 1) { \
409 res = (LI_)d[0] + (LI_)d[1] * 0x100000000LL; \
418 EF_(int64ToIntegerzh_fast);
419 EF_(word64ToIntegerzh_fast);
421 /* The rest are (way!) out of line, implemented via C entry points.
423 I_ stg_gtWord64 (StgWord64, StgWord64);
424 I_ stg_geWord64 (StgWord64, StgWord64);
425 I_ stg_eqWord64 (StgWord64, StgWord64);
426 I_ stg_neWord64 (StgWord64, StgWord64);
427 I_ stg_ltWord64 (StgWord64, StgWord64);
428 I_ stg_leWord64 (StgWord64, StgWord64);
430 I_ stg_gtInt64 (StgInt64, StgInt64);
431 I_ stg_geInt64 (StgInt64, StgInt64);
432 I_ stg_eqInt64 (StgInt64, StgInt64);
433 I_ stg_neInt64 (StgInt64, StgInt64);
434 I_ stg_ltInt64 (StgInt64, StgInt64);
435 I_ stg_leInt64 (StgInt64, StgInt64);
437 LW_ stg_remWord64 (StgWord64, StgWord64);
438 LW_ stg_quotWord64 (StgWord64, StgWord64);
440 LI_ stg_remInt64 (StgInt64, StgInt64);
441 LI_ stg_quotInt64 (StgInt64, StgInt64);
442 LI_ stg_negateInt64 (StgInt64);
443 LI_ stg_plusInt64 (StgInt64, StgInt64);
444 LI_ stg_minusInt64 (StgInt64, StgInt64);
445 LI_ stg_timesInt64 (StgInt64, StgInt64);
447 LW_ stg_and64 (StgWord64, StgWord64);
448 LW_ stg_or64 (StgWord64, StgWord64);
449 LW_ stg_xor64 (StgWord64, StgWord64);
450 LW_ stg_not64 (StgWord64);
452 LW_ stg_shiftL64 (StgWord64, StgInt);
453 LW_ stg_shiftRL64 (StgWord64, StgInt);
454 LI_ stg_iShiftL64 (StgInt64, StgInt);
455 LI_ stg_iShiftRL64 (StgInt64, StgInt);
456 LI_ stg_iShiftRA64 (StgInt64, StgInt);
458 LI_ stg_intToInt64 (StgInt);
459 I_ stg_int64ToInt (StgInt64);
460 LW_ stg_int64ToWord64 (StgInt64);
462 LW_ stg_wordToWord64 (StgWord);
463 W_ stg_word64ToWord (StgWord64);
464 LI_ stg_word64ToInt64 (StgWord64);
467 /* -----------------------------------------------------------------------------
469 -------------------------------------------------------------------------- */
471 /* We cast to void* instead of StgChar* because this avoids a warning
472 * about increasing the alignment requirements.
474 #define REAL_BYTE_ARR_CTS(a) ((void *) (((StgArrWords *)(a))->payload))
475 #define REAL_PTRS_ARR_CTS(a) ((P_) (((StgMutArrPtrs *)(a))->payload))
478 #define BYTE_ARR_CTS(a) \
479 ({ ASSERT(GET_INFO(a) == &ARR_WORDS_info); \
480 REAL_BYTE_ARR_CTS(a); })
481 #define PTRS_ARR_CTS(a) \
482 ({ ASSERT((GET_INFO(a) == &ARR_PTRS_info) \
483 || (GET_INFO(a) == &MUT_ARR_PTRS_info)); \
484 REAL_PTRS_ARR_CTS(a); })
486 #define BYTE_ARR_CTS(a) REAL_BYTE_ARR_CTS(a)
487 #define PTRS_ARR_CTS(a) REAL_PTRS_ARR_CTS(a)
490 extern I_ genSymZh(void);
491 extern I_ resetGenSymZh(void);
493 /*--- everything except new*Array is done inline: */
495 #define sameMutableArrayzh(r,a,b) r=(I_)((a)==(b))
496 #define sameMutableByteArrayzh(r,a,b) r=(I_)((a)==(b))
498 #define readArrayzh(r,a,i) r=((PP_) PTRS_ARR_CTS(a))[(i)]
500 #define readCharArrayzh(r,a,i) indexCharOffAddrzh(r,BYTE_ARR_CTS(a),i)
501 #define readIntArrayzh(r,a,i) indexIntOffAddrzh(r,BYTE_ARR_CTS(a),i)
502 #define readWordArrayzh(r,a,i) indexWordOffAddrzh(r,BYTE_ARR_CTS(a),i)
503 #define readAddrArrayzh(r,a,i) indexAddrOffAddrzh(r,BYTE_ARR_CTS(a),i)
504 #define readFloatArrayzh(r,a,i) indexFloatOffAddrzh(r,BYTE_ARR_CTS(a),i)
505 #define readDoubleArrayzh(r,a,i) indexDoubleOffAddrzh(r,BYTE_ARR_CTS(a),i)
506 #define readStablePtrArrayzh(r,a,i) indexStablePtrOffAddrzh(r,BYTE_ARR_CTS(a),i)
507 #ifdef SUPPORT_LONG_LONGS
508 #define readInt64Arrayzh(r,a,i) indexInt64OffAddrzh(r,BYTE_ARR_CTS(a),i)
509 #define readWord64Arrayzh(r,a,i) indexWord64OffAddrzh(r,BYTE_ARR_CTS(a),i)
512 /* result ("r") arg ignored in write macros! */
513 #define writeArrayzh(a,i,v) ((PP_) PTRS_ARR_CTS(a))[(i)]=(v)
515 #define writeCharArrayzh(a,i,v) ((C_ *)(BYTE_ARR_CTS(a)))[i] = (v)
516 #define writeIntArrayzh(a,i,v) ((I_ *)(BYTE_ARR_CTS(a)))[i] = (v)
517 #define writeWordArrayzh(a,i,v) ((W_ *)(BYTE_ARR_CTS(a)))[i] = (v)
518 #define writeAddrArrayzh(a,i,v) ((PP_)(BYTE_ARR_CTS(a)))[i] = (v)
519 #define writeFloatArrayzh(a,i,v) \
520 ASSIGN_FLT((P_) (((StgFloat *)(BYTE_ARR_CTS(a))) + i),v)
521 #define writeDoubleArrayzh(a,i,v) \
522 ASSIGN_DBL((P_) (((StgDouble *)(BYTE_ARR_CTS(a))) + i),v)
523 #define writeStablePtrArrayzh(a,i,v) ((StgStablePtr *)(BYTE_ARR_CTS(a)))[i] = (v)
524 #ifdef SUPPORT_LONG_LONGS
525 #define writeInt64Arrayzh(a,i,v) ((LI_ *)(BYTE_ARR_CTS(a)))[i] = (v)
526 #define writeWord64Arrayzh(a,i,v) ((LW_ *)(BYTE_ARR_CTS(a)))[i] = (v)
529 #define indexArrayzh(r,a,i) r=((PP_) PTRS_ARR_CTS(a))[(i)]
531 #define indexCharArrayzh(r,a,i) indexCharOffAddrzh(r,BYTE_ARR_CTS(a),i)
532 #define indexIntArrayzh(r,a,i) indexIntOffAddrzh(r,BYTE_ARR_CTS(a),i)
533 #define indexWordArrayzh(r,a,i) indexWordOffAddrzh(r,BYTE_ARR_CTS(a),i)
534 #define indexAddrArrayzh(r,a,i) indexAddrOffAddrzh(r,BYTE_ARR_CTS(a),i)
535 #define indexFloatArrayzh(r,a,i) indexFloatOffAddrzh(r,BYTE_ARR_CTS(a),i)
536 #define indexDoubleArrayzh(r,a,i) indexDoubleOffAddrzh(r,BYTE_ARR_CTS(a),i)
537 #define indexStablePtrArrayzh(r,a,i) indexStablePtrOffAddrzh(r,BYTE_ARR_CTS(a),i)
538 #ifdef SUPPORT_LONG_LONGS
539 #define indexInt64Arrayzh(r,a,i) indexInt64OffAddrzh(r,BYTE_ARR_CTS(a),i)
540 #define indexWord64Arrayzh(r,a,i) indexWord64OffAddrzh(r,BYTE_ARR_CTS(a),i)
543 #define indexCharOffForeignObjzh(r,fo,i) indexCharOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
544 #define indexIntOffForeignObjzh(r,fo,i) indexIntOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
545 #define indexWordOffForeignObjzh(r,fo,i) indexWordOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
546 #define indexAddrOffForeignObjzh(r,fo,i) indexAddrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
547 #define indexFloatOffForeignObjzh(r,fo,i) indexFloatOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
548 #define indexDoubleOffForeignObjzh(r,fo,i) indexDoubleOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
549 #define indexStablePtrOffForeignObjzh(r,fo,i) indexStablePtrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
550 #ifdef SUPPORT_LONG_LONGS
551 #define indexInt64OffForeignObjzh(r,fo,i) indexInt64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
552 #define indexWord64OffForeignObjzh(r,fo,i) indexWord64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
555 #define indexCharOffAddrzh(r,a,i) r= ((C_ *)(a))[i]
556 #define indexIntOffAddrzh(r,a,i) r= ((I_ *)(a))[i]
557 #define indexWordOffAddrzh(r,a,i) r= ((W_ *)(a))[i]
558 #define indexAddrOffAddrzh(r,a,i) r= ((PP_)(a))[i]
559 #define indexFloatOffAddrzh(r,a,i) r= PK_FLT((P_) (((StgFloat *)(a)) + i))
560 #define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
561 #ifdef SUPPORT_LONG_LONGS
562 #define indexInt64OffAddrzh(r,a,i) r= ((LI_ *)(a))[i]
563 #define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
566 /* Freezing arrays-of-ptrs requires changing an info table, for the
567 benefit of the generational collector. It needs to scavenge mutable
568 objects, even if they are in old space. When they become immutable,
569 they can be removed from this scavenge list. */
571 #define unsafeFreezzeArrayzh(r,a) \
573 SET_INFO((StgClosure *)a,&MUT_ARR_PTRS_FROZEN_info); \
577 #define unsafeFreezzeByteArrayzh(r,a) r=(a)
578 #define unsafeThawByteArrayzh(r,a) r=(a)
580 EF_(unsafeThawArrayzh_fast);
582 #define sizzeofByteArrayzh(r,a) \
583 r = (((StgArrWords *)(a))->words * sizeof(W_))
584 #define sizzeofMutableByteArrayzh(r,a) \
585 r = (((StgArrWords *)(a))->words * sizeof(W_))
587 /* and the out-of-line ones... */
589 EF_(newCharArrayzh_fast);
590 EF_(newIntArrayzh_fast);
591 EF_(newWordArrayzh_fast);
592 EF_(newAddrArrayzh_fast);
593 EF_(newFloatArrayzh_fast);
594 EF_(newDoubleArrayzh_fast);
595 EF_(newStablePtrArrayzh_fast);
596 EF_(newArrayzh_fast);
598 /* encoding and decoding of floats/doubles. */
600 /* We only support IEEE floating point format */
601 #include "ieee-flpt.h"
603 /* The decode operations are out-of-line because they need to allocate
606 #ifdef FLOATS_AS_DOUBLES
607 #define decodeFloatzh_fast decodeDoublezh_fast
609 EF_(decodeFloatzh_fast);
612 EF_(decodeDoublezh_fast);
614 /* grimy low-level support functions defined in StgPrimFloat.c */
616 extern StgDouble __encodeDouble (I_ size, StgByteArray arr, I_ e);
617 extern StgDouble __int_encodeDouble (I_ j, I_ e);
618 #ifndef FLOATS_AS_DOUBLES
619 extern StgFloat __encodeFloat (I_ size, StgByteArray arr, I_ e);
620 extern StgFloat __int_encodeFloat (I_ j, I_ e);
622 extern void __decodeDouble (MP_INT *man, I_ *_exp, StgDouble dbl);
623 extern void __decodeFloat (MP_INT *man, I_ *_exp, StgFloat flt);
624 extern StgInt isDoubleNaN(StgDouble d);
625 extern StgInt isDoubleInfinite(StgDouble d);
626 extern StgInt isDoubleDenormalized(StgDouble d);
627 extern StgInt isDoubleNegativeZero(StgDouble d);
628 extern StgInt isFloatNaN(StgFloat f);
629 extern StgInt isFloatInfinite(StgFloat f);
630 extern StgInt isFloatDenormalized(StgFloat f);
631 extern StgInt isFloatNegativeZero(StgFloat f);
633 /* -----------------------------------------------------------------------------
636 newMutVar is out of line.
637 -------------------------------------------------------------------------- */
639 EF_(newMutVarzh_fast);
641 #define readMutVarzh(r,a) r=(P_)(((StgMutVar *)(a))->var)
642 #define writeMutVarzh(a,v) (P_)(((StgMutVar *)(a))->var)=(v)
643 #define sameMutVarzh(r,a,b) r=(I_)((a)==(b))
645 /* -----------------------------------------------------------------------------
648 All out of line, because they either allocate or may block.
649 -------------------------------------------------------------------------- */
650 #define sameMVarzh(r,a,b) r=(I_)((a)==(b))
652 /* Assume external decl of EMPTY_MVAR_info is in scope by now */
653 #define isEmptyMVarzh(r,a) r=(I_)((GET_INFO((StgMVar*)(a))) == &EMPTY_MVAR_info )
655 EF_(takeMVarzh_fast);
659 /* -----------------------------------------------------------------------------
661 -------------------------------------------------------------------------- */
663 /* Hmm, I'll think about these later. */
665 /* -----------------------------------------------------------------------------
666 Primitive I/O, error-handling PrimOps
667 -------------------------------------------------------------------------- */
672 extern void stg_exit(I_ n) __attribute__ ((noreturn));
674 /* -----------------------------------------------------------------------------
675 Stable Name / Stable Pointer PrimOps
676 -------------------------------------------------------------------------- */
680 EF_(makeStableNamezh_fast);
682 #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
684 #define eqStableNamezh(r,sn1,sn2) \
685 (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
687 #define makeStablePtrzh(r,a) \
688 r = RET_STGCALL1(StgStablePtr,getStablePtr,a)
690 #define deRefStablePtrzh(r,sp) do { \
691 ASSERT(stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].weight > 0); \
692 r = stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].addr; \
695 #define eqStablePtrzh(r,sp1,sp2) \
696 (r = ((sp1 & ~STABLEPTR_WEIGHT_MASK) == (sp2 & ~STABLEPTR_WEIGHT_MASK)))
700 /* -----------------------------------------------------------------------------
702 -------------------------------------------------------------------------- */
706 EF_(killThreadzh_fast);
709 #define myThreadIdzh(t) (t = CurrentTSO)
711 /* Hmm, I'll think about these later. */
712 /* -----------------------------------------------------------------------------
714 -------------------------------------------------------------------------- */
716 /* warning: extremely non-referentially transparent, need to hide in
717 an appropriate monad.
719 ToDo: follow indirections.
722 #define reallyUnsafePtrEqualityzh(r,a,b) r=((StgPtr)(a) == (StgPtr)(b))
724 /* -----------------------------------------------------------------------------
725 Weak Pointer PrimOps.
726 -------------------------------------------------------------------------- */
731 EF_(finalizzeWeakzh_fast);
733 #define deRefWeakzh(code,val,w) \
734 if (((StgWeak *)w)->header.info == &WEAK_info) { \
736 val = (P_)((StgWeak *)w)->value; \
742 #define sameWeakzh(w1,w2) ((w1)==(w2))
746 /* -----------------------------------------------------------------------------
747 Foreign Object PrimOps.
748 -------------------------------------------------------------------------- */
752 #define ForeignObj_CLOSURE_DATA(c) (((StgForeignObj *)c)->data)
754 EF_(makeForeignObjzh_fast);
756 #define writeForeignObjzh(res,datum) \
757 (ForeignObj_CLOSURE_DATA(res) = (P_)(datum))
759 #define eqForeignObj(f1,f2) ((f1)==(f2))
763 /* -----------------------------------------------------------------------------
765 -------------------------------------------------------------------------- */
767 #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
768 /* tagToEnum# is handled directly by the code generator. */
770 /* -----------------------------------------------------------------------------
771 Signal processing. Not really primops, but called directly from
773 -------------------------------------------------------------------------- */
775 #define STG_SIG_DFL (-1)
776 #define STG_SIG_IGN (-2)
777 #define STG_SIG_ERR (-3)
778 #define STG_SIG_HAN (-4)
780 extern StgInt sig_install (StgInt, StgInt, StgStablePtr, sigset_t *);
781 #define stg_sig_default(sig,mask) sig_install(sig,STG_SIG_DFL,0,(sigset_t *)mask)
782 #define stg_sig_ignore(sig,mask) sig_install(sig,STG_SIG_IGN,0,(sigset_t *)mask)
783 #define stg_sig_catch(sig,ptr,mask) sig_install(sig,STG_SIG_HAN,ptr,(sigset_t *)mask)