1 /* -----------------------------------------------------------------------------
2 * $Id: PrimOps.h,v 1.32 1999/06/25 10:09:19 panne 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 /* -----------------------------------------------------------------------------
63 -------------------------------------------------------------------------- */
65 #define ordzh(r,a) r=(I_)((W_) (a))
66 #define chrzh(r,a) r=(StgChar)((W_)(a))
68 /* -----------------------------------------------------------------------------
70 -------------------------------------------------------------------------- */
72 I_ stg_div (I_ a, I_ b);
74 #define zpzh(r,a,b) r=(a)+(b)
75 #define zmzh(r,a,b) r=(a)-(b)
76 #define ztzh(r,a,b) r=(a)*(b)
77 #define quotIntzh(r,a,b) r=(a)/(b)
78 #define zszh(r,a,b) r=ULTRASAFESTGCALL2(I_,(void *, I_, I_),stg_div,(a),(b))
79 #define remIntzh(r,a,b) r=(a)%(b)
80 #define negateIntzh(r,a) r=-(a)
82 /* -----------------------------------------------------------------------------
83 * Int operations with carry.
84 * -------------------------------------------------------------------------- */
86 /* With some bit-twiddling, we can define int{Add,Sub}Czh portably in
87 * C, and without needing any comparisons. This may not be the
88 * fastest way to do it - if you have better code, please send it! --SDM
90 * Return : r = a + b, c = 0 if no overflow, 1 on overflow.
92 * We currently don't make use of the r value if c is != 0 (i.e.
93 * overflow), we just convert to big integers and try again. This
94 * could be improved by making r and c the correct values for
95 * plugging into a new J#.
97 #define addIntCzh(r,c,a,b) \
99 c = ((StgWord)(~(a^b) & (a^r))) \
100 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
104 #define subIntCzh(r,c,a,b) \
106 c = ((StgWord)((a^b) & (a^r))) \
107 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
110 /* Multiply with overflow checking.
112 * This is slightly more tricky - the usual sign rules for add/subtract
115 * On x86 hardware we use a hand-crafted assembly fragment to do the job.
117 * On other 32-bit machines we use gcc's 'long long' types, finding
118 * overflow with some careful bit-twiddling.
120 * On 64-bit machines where gcc's 'long long' type is also 64-bits,
121 * we use a crude approximation, testing whether either operand is
122 * larger than 32-bits; if neither is, then we go ahead with the
128 #define mulIntCzh(r,c,a,b) \
130 __asm__("xor %1,%1\n\t \
135 : "=r" (r), "=r" (c) : "r" (a), "0" (b)); \
138 #elif SIZEOF_VOID_P == 4
140 #ifdef WORDS_BIGENDIAN
153 #define mulIntCzh(r,c,a,b) \
156 z.l = (StgInt64)a * (StgInt64)b; \
159 if (c == 0 || c == -1) { \
160 c = ((StgWord)((a^b) ^ r)) \
161 >> (BITS_PER_BYTE * sizeof(I_) - 1); \
164 /* Careful: the carry calculation above is extremely delicate. Make sure
165 * you test it thoroughly after changing it.
170 #define HALF_INT (1 << (BITS_PER_BYTE * sizeof(I_) / 2))
172 #define stg_abs(a) ((a) < 0 ? -(a) : (a))
174 #define mulIntCzh(r,c,a,b) \
176 if (stg_abs(a) >= HALF_INT \
177 stg_abs(b) >= HALF_INT) { \
186 /* -----------------------------------------------------------------------------
188 -------------------------------------------------------------------------- */
190 #define quotWordzh(r,a,b) r=((W_)a)/((W_)b)
191 #define remWordzh(r,a,b) r=((W_)a)%((W_)b)
193 #define andzh(r,a,b) r=(a)&(b)
194 #define orzh(r,a,b) r=(a)|(b)
195 #define xorzh(r,a,b) r=(a)^(b)
196 #define notzh(r,a) r=~(a)
198 #define shiftLzh(r,a,b) r=(a)<<(b)
199 #define shiftRLzh(r,a,b) r=(a)>>(b)
200 #define iShiftLzh(r,a,b) r=(a)<<(b)
201 /* Right shifting of signed quantities is not portable in C, so
202 the behaviour you'll get from using these primops depends
203 on the whatever your C compiler is doing. ToDo: fix/document. -- sof 8/98
205 #define iShiftRAzh(r,a,b) r=(a)>>(b)
206 #define iShiftRLzh(r,a,b) r=(a)>>(b)
208 #define int2Wordzh(r,a) r=(W_)(a)
209 #define word2Intzh(r,a) r=(I_)(a)
211 /* -----------------------------------------------------------------------------
213 -------------------------------------------------------------------------- */
215 #define int2Addrzh(r,a) r=(A_)(a)
216 #define addr2Intzh(r,a) r=(I_)(a)
218 #define indexCharOffAddrzh(r,a,i) r= ((C_ *)(a))[i]
219 #define indexIntOffAddrzh(r,a,i) r= ((I_ *)(a))[i]
220 #define indexAddrOffAddrzh(r,a,i) r= ((PP_)(a))[i]
221 #define indexFloatOffAddrzh(r,a,i) r= PK_FLT((P_) (((StgFloat *)(a)) + i))
222 #define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
223 #define indexStablePtrOffAddrzh(r,a,i) r= ((StgStablePtr *)(a))[i]
224 #ifdef SUPPORT_LONG_LONGS
225 #define indexInt64OffAddrzh(r,a,i) r= ((LI_ *)(a))[i]
226 #define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
229 #define writeCharOffAddrzh(a,i,v) ((C_ *)(a))[i] = (v)
230 #define writeIntOffAddrzh(a,i,v) ((I_ *)(a))[i] = (v)
231 #define writeWordOffAddrzh(a,i,v) ((W_ *)(a))[i] = (v)
232 #define writeAddrOffAddrzh(a,i,v) ((PP_)(a))[i] = (v)
233 #define writeForeignObjOffAddrzh(a,i,v) ((PP_)(a))[i] = ForeignObj_CLOSURE_DATA(v)
234 #define writeFloatOffAddrzh(a,i,v) ASSIGN_FLT((P_) (((StgFloat *)(a)) + i),v)
235 #define writeDoubleOffAddrzh(a,i,v) ASSIGN_DBL((P_) (((StgDouble *)(a)) + i),v)
236 #define writeStablePtrOffAddrzh(a,i,v) ((StgStablePtr *)(a))[i] = (v)
237 #ifdef SUPPORT_LONG_LONGS
238 #define writeInt64OffAddrzh(a,i,v) ((LI_ *)(a))[i] = (v)
239 #define writeWord64OffAddrzh(a,i,v) ((LW_ *)(a))[i] = (v)
242 /* -----------------------------------------------------------------------------
244 -------------------------------------------------------------------------- */
246 #define plusFloatzh(r,a,b) r=(a)+(b)
247 #define minusFloatzh(r,a,b) r=(a)-(b)
248 #define timesFloatzh(r,a,b) r=(a)*(b)
249 #define divideFloatzh(r,a,b) r=(a)/(b)
250 #define negateFloatzh(r,a) r=-(a)
252 #define int2Floatzh(r,a) r=(StgFloat)(a)
253 #define float2Intzh(r,a) r=(I_)(a)
255 #define expFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,exp,a)
256 #define logFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,log,a)
257 #define sqrtFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sqrt,a)
258 #define sinFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sin,a)
259 #define cosFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,cos,a)
260 #define tanFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,tan,a)
261 #define asinFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,asin,a)
262 #define acosFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,acos,a)
263 #define atanFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,atan,a)
264 #define sinhFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,sinh,a)
265 #define coshFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,cosh,a)
266 #define tanhFloatzh(r,a) r=(StgFloat) RET_PRIM_STGCALL1(StgDouble,tanh,a)
267 #define powerFloatzh(r,a,b) r=(StgFloat) RET_PRIM_STGCALL2(StgDouble,pow,a,b)
269 /* -----------------------------------------------------------------------------
271 -------------------------------------------------------------------------- */
273 #define zpzhzh(r,a,b) r=(a)+(b)
274 #define zmzhzh(r,a,b) r=(a)-(b)
275 #define ztzhzh(r,a,b) r=(a)*(b)
276 #define zszhzh(r,a,b) r=(a)/(b)
277 #define negateDoublezh(r,a) r=-(a)
279 #define int2Doublezh(r,a) r=(StgDouble)(a)
280 #define double2Intzh(r,a) r=(I_)(a)
282 #define float2Doublezh(r,a) r=(StgDouble)(a)
283 #define double2Floatzh(r,a) r=(StgFloat)(a)
285 #define expDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,exp,a)
286 #define logDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,log,a)
287 #define sqrtDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sqrt,a)
288 #define sinDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sin,a)
289 #define cosDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,cos,a)
290 #define tanDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,tan,a)
291 #define asinDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,asin,a)
292 #define acosDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,acos,a)
293 #define atanDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,atan,a)
294 #define sinhDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,sinh,a)
295 #define coshDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,cosh,a)
296 #define tanhDoublezh(r,a) r=(StgDouble) RET_PRIM_STGCALL1(StgDouble,tanh,a)
298 #define ztztzhzh(r,a,b) r=(StgDouble) RET_PRIM_STGCALL2(StgDouble,pow,a,b)
300 /* -----------------------------------------------------------------------------
302 -------------------------------------------------------------------------- */
304 /* We can do integer2Int and cmpInteger inline, since they don't need
305 * to allocate any memory.
307 * integer2Int# is now modular.
310 #define integer2Intzh(r, sa,da) \
311 { StgWord word0 = ((StgWord *)BYTE_ARR_CTS(da))[0]; \
317 ( size < 0 && word0 != 0x8000000 ) ? \
322 #define integer2Wordzh(r, sa,da) \
323 { StgWord word0 = ((StgWord *)BYTE_ARR_CTS(da))[0]; \
325 (r) = ( size == 0 ) ? 0 : word0 ; \
328 #define cmpIntegerzh(r, s1,d1, s2,d2) \
332 arg1._mp_size = (s1); \
333 arg1._mp_alloc= ((StgArrWords *)d1)->words; \
334 arg1._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d1)); \
335 arg2._mp_size = (s2); \
336 arg2._mp_alloc= ((StgArrWords *)d2)->words; \
337 arg2._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d2)); \
339 (r) = RET_PRIM_STGCALL2(I_,mpz_cmp,&arg1,&arg2); \
342 #define cmpIntegerIntzh(r, s,d, i) \
345 arg._mp_size = (s); \
346 arg._mp_alloc = ((StgArrWords *)d)->words; \
347 arg._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d)); \
349 (r) = RET_PRIM_STGCALL2(I_,mpz_cmp_si,&arg,i); \
352 /* The rest are all out-of-line: -------- */
354 /* Integer arithmetic */
355 EF_(plusIntegerzh_fast);
356 EF_(minusIntegerzh_fast);
357 EF_(timesIntegerzh_fast);
358 EF_(gcdIntegerzh_fast);
359 EF_(quotRemIntegerzh_fast);
360 EF_(divModIntegerzh_fast);
363 EF_(int2Integerzh_fast);
364 EF_(word2Integerzh_fast);
365 EF_(addr2Integerzh_fast);
367 /* Floating-point decodings */
368 EF_(decodeFloatzh_fast);
369 EF_(decodeDoublezh_fast);
371 /* -----------------------------------------------------------------------------
373 -------------------------------------------------------------------------- */
375 #ifdef SUPPORT_LONG_LONGS
377 #define integerToWord64zh(r, sa,da) \
378 { unsigned long int* d; \
382 d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
383 aa = ((StgArrWords *)da)->words; \
386 } else if ( (aa) == 1) { \
389 res = (LW_)d[0] + (LW_)d[1] * 0x100000000ULL; \
394 #define integerToInt64zh(r, sa,da) \
395 { unsigned long int* d; \
399 d = (unsigned long int *) (BYTE_ARR_CTS(da)); \
400 aa = ((StgArrWords *)da)->words; \
403 } else if ( (aa) == 1) { \
406 res = (LI_)d[0] + (LI_)d[1] * 0x100000000LL; \
415 EF_(int64ToIntegerzh_fast);
416 EF_(word64ToIntegerzh_fast);
418 /* The rest are (way!) out of line, implemented via C entry points.
420 I_ stg_gtWord64 (StgWord64, StgWord64);
421 I_ stg_geWord64 (StgWord64, StgWord64);
422 I_ stg_eqWord64 (StgWord64, StgWord64);
423 I_ stg_neWord64 (StgWord64, StgWord64);
424 I_ stg_ltWord64 (StgWord64, StgWord64);
425 I_ stg_leWord64 (StgWord64, StgWord64);
427 I_ stg_gtInt64 (StgInt64, StgInt64);
428 I_ stg_geInt64 (StgInt64, StgInt64);
429 I_ stg_eqInt64 (StgInt64, StgInt64);
430 I_ stg_neInt64 (StgInt64, StgInt64);
431 I_ stg_ltInt64 (StgInt64, StgInt64);
432 I_ stg_leInt64 (StgInt64, StgInt64);
434 LW_ stg_remWord64 (StgWord64, StgWord64);
435 LW_ stg_quotWord64 (StgWord64, StgWord64);
437 LI_ stg_remInt64 (StgInt64, StgInt64);
438 LI_ stg_quotInt64 (StgInt64, StgInt64);
439 LI_ stg_negateInt64 (StgInt64);
440 LI_ stg_plusInt64 (StgInt64, StgInt64);
441 LI_ stg_minusInt64 (StgInt64, StgInt64);
442 LI_ stg_timesInt64 (StgInt64, StgInt64);
444 LW_ stg_and64 (StgWord64, StgWord64);
445 LW_ stg_or64 (StgWord64, StgWord64);
446 LW_ stg_xor64 (StgWord64, StgWord64);
447 LW_ stg_not64 (StgWord64);
449 LW_ stg_shiftL64 (StgWord64, StgInt);
450 LW_ stg_shiftRL64 (StgWord64, StgInt);
451 LI_ stg_iShiftL64 (StgInt64, StgInt);
452 LI_ stg_iShiftRL64 (StgInt64, StgInt);
453 LI_ stg_iShiftRA64 (StgInt64, StgInt);
455 LI_ stg_intToInt64 (StgInt);
456 I_ stg_int64ToInt (StgInt64);
457 LW_ stg_int64ToWord64 (StgInt64);
459 LW_ stg_wordToWord64 (StgWord);
460 W_ stg_word64ToWord (StgWord64);
461 LI_ stg_word64ToInt64 (StgWord64);
464 /* -----------------------------------------------------------------------------
466 -------------------------------------------------------------------------- */
468 /* We cast to void* instead of StgChar* because this avoids a warning
469 * about increasing the alignment requirements.
471 #define REAL_BYTE_ARR_CTS(a) ((void *) (((StgArrWords *)(a))->payload))
472 #define REAL_PTRS_ARR_CTS(a) ((P_) (((StgMutArrPtrs *)(a))->payload))
475 #define BYTE_ARR_CTS(a) \
476 ({ ASSERT(GET_INFO((StgArrWords *)(a)) == &ARR_WORDS_info); \
477 REAL_BYTE_ARR_CTS(a); })
478 #define PTRS_ARR_CTS(a) \
479 ({ ASSERT((GET_INFO((StgMutArrPtrs *)(a)) == &MUT_ARR_PTRS_FROZEN_info) \
480 || (GET_INFO((StgMutArrPtrs *)(a)) == &MUT_ARR_PTRS_info)); \
481 REAL_PTRS_ARR_CTS(a); })
483 #define BYTE_ARR_CTS(a) REAL_BYTE_ARR_CTS(a)
484 #define PTRS_ARR_CTS(a) REAL_PTRS_ARR_CTS(a)
487 extern I_ genSymZh(void);
488 extern I_ resetGenSymZh(void);
490 /*--- everything except new*Array is done inline: */
492 #define sameMutableArrayzh(r,a,b) r=(I_)((a)==(b))
493 #define sameMutableByteArrayzh(r,a,b) r=(I_)((a)==(b))
495 #define readArrayzh(r,a,i) r=((PP_) PTRS_ARR_CTS(a))[(i)]
497 #define readCharArrayzh(r,a,i) indexCharOffAddrzh(r,BYTE_ARR_CTS(a),i)
498 #define readIntArrayzh(r,a,i) indexIntOffAddrzh(r,BYTE_ARR_CTS(a),i)
499 #define readWordArrayzh(r,a,i) indexWordOffAddrzh(r,BYTE_ARR_CTS(a),i)
500 #define readAddrArrayzh(r,a,i) indexAddrOffAddrzh(r,BYTE_ARR_CTS(a),i)
501 #define readFloatArrayzh(r,a,i) indexFloatOffAddrzh(r,BYTE_ARR_CTS(a),i)
502 #define readDoubleArrayzh(r,a,i) indexDoubleOffAddrzh(r,BYTE_ARR_CTS(a),i)
503 #define readStablePtrArrayzh(r,a,i) indexStablePtrOffAddrzh(r,BYTE_ARR_CTS(a),i)
504 #ifdef SUPPORT_LONG_LONGS
505 #define readInt64Arrayzh(r,a,i) indexInt64OffAddrzh(r,BYTE_ARR_CTS(a),i)
506 #define readWord64Arrayzh(r,a,i) indexWord64OffAddrzh(r,BYTE_ARR_CTS(a),i)
509 /* result ("r") arg ignored in write macros! */
510 #define writeArrayzh(a,i,v) ((PP_) PTRS_ARR_CTS(a))[(i)]=(v)
512 #define writeCharArrayzh(a,i,v) ((C_ *)(BYTE_ARR_CTS(a)))[i] = (v)
513 #define writeIntArrayzh(a,i,v) ((I_ *)(BYTE_ARR_CTS(a)))[i] = (v)
514 #define writeWordArrayzh(a,i,v) ((W_ *)(BYTE_ARR_CTS(a)))[i] = (v)
515 #define writeAddrArrayzh(a,i,v) ((PP_)(BYTE_ARR_CTS(a)))[i] = (v)
516 #define writeFloatArrayzh(a,i,v) \
517 ASSIGN_FLT((P_) (((StgFloat *)(BYTE_ARR_CTS(a))) + i),v)
518 #define writeDoubleArrayzh(a,i,v) \
519 ASSIGN_DBL((P_) (((StgDouble *)(BYTE_ARR_CTS(a))) + i),v)
520 #define writeStablePtrArrayzh(a,i,v) ((StgStablePtr *)(BYTE_ARR_CTS(a)))[i] = (v)
521 #ifdef SUPPORT_LONG_LONGS
522 #define writeInt64Arrayzh(a,i,v) ((LI_ *)(BYTE_ARR_CTS(a)))[i] = (v)
523 #define writeWord64Arrayzh(a,i,v) ((LW_ *)(BYTE_ARR_CTS(a)))[i] = (v)
526 #define indexArrayzh(r,a,i) r=((PP_) PTRS_ARR_CTS(a))[(i)]
528 #define indexCharArrayzh(r,a,i) indexCharOffAddrzh(r,BYTE_ARR_CTS(a),i)
529 #define indexIntArrayzh(r,a,i) indexIntOffAddrzh(r,BYTE_ARR_CTS(a),i)
530 #define indexWordArrayzh(r,a,i) indexWordOffAddrzh(r,BYTE_ARR_CTS(a),i)
531 #define indexAddrArrayzh(r,a,i) indexAddrOffAddrzh(r,BYTE_ARR_CTS(a),i)
532 #define indexFloatArrayzh(r,a,i) indexFloatOffAddrzh(r,BYTE_ARR_CTS(a),i)
533 #define indexDoubleArrayzh(r,a,i) indexDoubleOffAddrzh(r,BYTE_ARR_CTS(a),i)
534 #define indexStablePtrArrayzh(r,a,i) indexStablePtrOffAddrzh(r,BYTE_ARR_CTS(a),i)
535 #ifdef SUPPORT_LONG_LONGS
536 #define indexInt64Arrayzh(r,a,i) indexInt64OffAddrzh(r,BYTE_ARR_CTS(a),i)
537 #define indexWord64Arrayzh(r,a,i) indexWord64OffAddrzh(r,BYTE_ARR_CTS(a),i)
540 #define indexCharOffForeignObjzh(r,fo,i) indexCharOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
541 #define indexIntOffForeignObjzh(r,fo,i) indexIntOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
542 #define indexWordOffForeignObjzh(r,fo,i) indexWordOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
543 #define indexAddrOffForeignObjzh(r,fo,i) indexAddrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
544 #define indexFloatOffForeignObjzh(r,fo,i) indexFloatOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
545 #define indexDoubleOffForeignObjzh(r,fo,i) indexDoubleOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
546 #define indexStablePtrOffForeignObjzh(r,fo,i) indexStablePtrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
547 #ifdef SUPPORT_LONG_LONGS
548 #define indexInt64OffForeignObjzh(r,fo,i) indexInt64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
549 #define indexWord64OffForeignObjzh(r,fo,i) indexWord64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
552 #define indexCharOffAddrzh(r,a,i) r= ((C_ *)(a))[i]
553 #define indexIntOffAddrzh(r,a,i) r= ((I_ *)(a))[i]
554 #define indexWordOffAddrzh(r,a,i) r= ((W_ *)(a))[i]
555 #define indexAddrOffAddrzh(r,a,i) r= ((PP_)(a))[i]
556 #define indexFloatOffAddrzh(r,a,i) r= PK_FLT((P_) (((StgFloat *)(a)) + i))
557 #define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
558 #ifdef SUPPORT_LONG_LONGS
559 #define indexInt64OffAddrzh(r,a,i) r= ((LI_ *)(a))[i]
560 #define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
563 /* Freezing arrays-of-ptrs requires changing an info table, for the
564 benefit of the generational collector. It needs to scavenge mutable
565 objects, even if they are in old space. When they become immutable,
566 they can be removed from this scavenge list. */
568 #define unsafeFreezzeArrayzh(r,a) \
570 SET_INFO((StgClosure *)a,&MUT_ARR_PTRS_FROZEN_info); \
574 #define unsafeFreezzeByteArrayzh(r,a) r=(a)
575 #define unsafeThawByteArrayzh(r,a) r=(a)
577 EF_(unsafeThawArrayzh_fast);
579 #define sizzeofByteArrayzh(r,a) \
580 r = (((StgArrWords *)(a))->words * sizeof(W_))
581 #define sizzeofMutableByteArrayzh(r,a) \
582 r = (((StgArrWords *)(a))->words * sizeof(W_))
584 /* and the out-of-line ones... */
586 EF_(newCharArrayzh_fast);
587 EF_(newIntArrayzh_fast);
588 EF_(newWordArrayzh_fast);
589 EF_(newAddrArrayzh_fast);
590 EF_(newFloatArrayzh_fast);
591 EF_(newDoubleArrayzh_fast);
592 EF_(newStablePtrArrayzh_fast);
593 EF_(newArrayzh_fast);
595 /* encoding and decoding of floats/doubles. */
597 /* We only support IEEE floating point format */
598 #include "ieee-flpt.h"
600 /* The decode operations are out-of-line because they need to allocate
603 #ifdef FLOATS_AS_DOUBLES
604 #define decodeFloatzh_fast decodeDoublezh_fast
606 EF_(decodeFloatzh_fast);
609 EF_(decodeDoublezh_fast);
611 /* grimy low-level support functions defined in StgPrimFloat.c */
613 extern StgDouble __encodeDouble (I_ size, StgByteArray arr, I_ e);
614 extern StgDouble __int_encodeDouble (I_ j, I_ e);
615 #ifndef FLOATS_AS_DOUBLES
616 extern StgFloat __encodeFloat (I_ size, StgByteArray arr, I_ e);
617 extern StgFloat __int_encodeFloat (I_ j, I_ e);
619 extern void __decodeDouble (MP_INT *man, I_ *_exp, StgDouble dbl);
620 extern void __decodeFloat (MP_INT *man, I_ *_exp, StgFloat flt);
621 extern StgInt isDoubleNaN(StgDouble d);
622 extern StgInt isDoubleInfinite(StgDouble d);
623 extern StgInt isDoubleDenormalized(StgDouble d);
624 extern StgInt isDoubleNegativeZero(StgDouble d);
625 extern StgInt isFloatNaN(StgFloat f);
626 extern StgInt isFloatInfinite(StgFloat f);
627 extern StgInt isFloatDenormalized(StgFloat f);
628 extern StgInt isFloatNegativeZero(StgFloat f);
630 /* -----------------------------------------------------------------------------
633 newMutVar is out of line.
634 -------------------------------------------------------------------------- */
636 EF_(newMutVarzh_fast);
638 #define readMutVarzh(r,a) r=(P_)(((StgMutVar *)(a))->var)
639 #define writeMutVarzh(a,v) (P_)(((StgMutVar *)(a))->var)=(v)
640 #define sameMutVarzh(r,a,b) r=(I_)((a)==(b))
642 /* -----------------------------------------------------------------------------
645 All out of line, because they either allocate or may block.
646 -------------------------------------------------------------------------- */
647 #define sameMVarzh(r,a,b) r=(I_)((a)==(b))
649 /* Assume external decl of EMPTY_MVAR_info is in scope by now */
650 #define isEmptyMVarzh(r,a) r=(I_)((GET_INFO((StgMVar*)(a))) == &EMPTY_MVAR_info )
652 EF_(takeMVarzh_fast);
656 /* -----------------------------------------------------------------------------
658 -------------------------------------------------------------------------- */
660 /* Hmm, I'll think about these later. */
662 /* -----------------------------------------------------------------------------
663 Primitive I/O, error-handling PrimOps
664 -------------------------------------------------------------------------- */
669 extern void stg_exit(I_ n) __attribute__ ((noreturn));
671 /* -----------------------------------------------------------------------------
672 Stable Name / Stable Pointer PrimOps
673 -------------------------------------------------------------------------- */
677 EF_(makeStableNamezh_fast);
679 #define stableNameToIntzh(r,s) (r = ((StgStableName *)s)->sn)
681 #define eqStableNamezh(r,sn1,sn2) \
682 (r = (((StgStableName *)sn1)->sn == ((StgStableName *)sn2)->sn))
684 #define makeStablePtrzh(r,a) \
685 r = RET_STGCALL1(StgStablePtr,getStablePtr,a)
687 #define deRefStablePtrzh(r,sp) do { \
688 ASSERT(stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].weight > 0); \
689 r = stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].addr; \
692 #define eqStablePtrzh(r,sp1,sp2) \
693 (r = ((sp1 & ~STABLEPTR_WEIGHT_MASK) == (sp2 & ~STABLEPTR_WEIGHT_MASK)))
697 /* -----------------------------------------------------------------------------
699 -------------------------------------------------------------------------- */
703 EF_(killThreadzh_fast);
706 #define myThreadIdzh(t) (t = CurrentTSO)
708 /* Hmm, I'll think about these later. */
709 /* -----------------------------------------------------------------------------
711 -------------------------------------------------------------------------- */
713 /* warning: extremely non-referentially transparent, need to hide in
714 an appropriate monad.
716 ToDo: follow indirections.
719 #define reallyUnsafePtrEqualityzh(r,a,b) r=((StgPtr)(a) == (StgPtr)(b))
721 /* -----------------------------------------------------------------------------
722 Weak Pointer PrimOps.
723 -------------------------------------------------------------------------- */
728 EF_(finalizzeWeakzh_fast);
730 #define deRefWeakzh(code,val,w) \
731 if (((StgWeak *)w)->header.info == &WEAK_info) { \
733 val = (P_)((StgWeak *)w)->value; \
739 #define sameWeakzh(w1,w2) ((w1)==(w2))
743 /* -----------------------------------------------------------------------------
744 Foreign Object PrimOps.
745 -------------------------------------------------------------------------- */
749 #define ForeignObj_CLOSURE_DATA(c) (((StgForeignObj *)c)->data)
751 EF_(makeForeignObjzh_fast);
753 #define writeForeignObjzh(res,datum) \
754 (ForeignObj_CLOSURE_DATA(res) = (P_)(datum))
756 #define eqForeignObj(f1,f2) ((f1)==(f2))
760 /* -----------------------------------------------------------------------------
762 -------------------------------------------------------------------------- */
764 #define dataToTagzh(r,a) r=(GET_TAG(((StgClosure *)a)->header.info))
765 /* tagToEnum# is handled directly by the code generator. */
767 /* -----------------------------------------------------------------------------
768 Signal processing. Not really primops, but called directly from
770 -------------------------------------------------------------------------- */
772 #define STG_SIG_DFL (-1)
773 #define STG_SIG_IGN (-2)
774 #define STG_SIG_ERR (-3)
775 #define STG_SIG_HAN (-4)
777 extern StgInt sig_install (StgInt, StgInt, StgStablePtr, sigset_t *);
778 #define stg_sig_default(sig,mask) sig_install(sig,STG_SIG_DFL,0,(sigset_t *)mask)
779 #define stg_sig_ignore(sig,mask) sig_install(sig,STG_SIG_IGN,0,(sigset_t *)mask)
780 #define stg_sig_catch(sig,ptr,mask) sig_install(sig,STG_SIG_HAN,ptr,(sigset_t *)mask)