![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to op_helper.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Qemu by Fabrice Bellard] / qemu / target-sh4|
Return to op_helper.c CVS log | Up to [Qemu by Fabrice Bellard] / qemu / target-sh4 |
1.1 root 1: /*
2: * SH4 emulation
1.1.1.3 root 3: *
1.1 root 4: * Copyright (c) 2005 Samuel Tardieu
5: *
6: * This library is free software; you can redistribute it and/or
7: * modify it under the terms of the GNU Lesser General Public
8: * License as published by the Free Software Foundation; either
9: * version 2 of the License, or (at your option) any later version.
10: *
11: * This library is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
1.1.1.5 root 17: * License along with this library; if not, see <http://www.gnu.org/licenses/>.
1.1 root 18: */
19: #include <assert.h>
1.1.1.5 root 20: #include <stdlib.h>
1.1 root 21: #include "exec.h"
1.1.1.4 root 22: #include "helper.h"
1.1 root 23:
1.1.1.8 ! root 24: static void cpu_restore_state_from_retaddr(void *retaddr)
! 25: {
! 26: TranslationBlock *tb;
! 27: unsigned long pc;
! 28:
! 29: if (retaddr) {
! 30: pc = (unsigned long) retaddr;
! 31: tb = tb_find_pc(pc);
! 32: if (tb) {
! 33: /* the PC is inside the translated code. It means that we have
! 34: a virtual CPU fault */
! 35: cpu_restore_state(tb, env, pc, NULL);
! 36: }
! 37: }
! 38: }
! 39:
1.1 root 40: #ifndef CONFIG_USER_ONLY
41:
42: #define MMUSUFFIX _mmu
43:
44: #define SHIFT 0
45: #include "softmmu_template.h"
46:
47: #define SHIFT 1
48: #include "softmmu_template.h"
49:
50: #define SHIFT 2
51: #include "softmmu_template.h"
52:
53: #define SHIFT 3
54: #include "softmmu_template.h"
55:
1.1.1.3 root 56: void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
1.1 root 57: {
58: CPUState *saved_env;
59: int ret;
60:
61: /* XXX: hack to restore env in all cases, even if not called from
62: generated code */
63: saved_env = env;
64: env = cpu_single_env;
1.1.1.3 root 65: ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
1.1 root 66: if (ret) {
1.1.1.8 ! root 67: /* now we have a real cpu fault */
! 68: cpu_restore_state_from_retaddr(retaddr);
1.1.1.4 root 69: cpu_loop_exit();
1.1 root 70: }
71: env = saved_env;
72: }
73:
74: #endif
75:
1.1.1.4 root 76: void helper_ldtlb(void)
77: {
78: #ifdef CONFIG_USER_ONLY
79: /* XXXXX */
1.1.1.7 root 80: cpu_abort(env, "Unhandled ldtlb");
1.1.1.4 root 81: #else
82: cpu_load_tlb(env);
83: #endif
84: }
85:
1.1.1.8 ! root 86: static inline void raise_exception(int index, void *retaddr)
1.1.1.4 root 87: {
1.1.1.8 ! root 88: env->exception_index = index;
! 89: cpu_restore_state_from_retaddr(retaddr);
1.1.1.4 root 90: cpu_loop_exit();
91: }
92:
1.1.1.8 ! root 93: void helper_raise_illegal_instruction(void)
! 94: {
! 95: raise_exception(0x180, GETPC());
! 96: }
! 97:
1.1.1.4 root 98: void helper_raise_slot_illegal_instruction(void)
99: {
1.1.1.8 ! root 100: raise_exception(0x1a0, GETPC());
1.1.1.4 root 101: }
102:
103: void helper_raise_fpu_disable(void)
104: {
1.1.1.8 ! root 105: raise_exception(0x800, GETPC());
1.1.1.4 root 106: }
107:
108: void helper_raise_slot_fpu_disable(void)
109: {
1.1.1.8 ! root 110: raise_exception(0x820, GETPC());
1.1.1.4 root 111: }
112:
113: void helper_debug(void)
114: {
115: env->exception_index = EXCP_DEBUG;
116: cpu_loop_exit();
117: }
118:
119: void helper_sleep(uint32_t next_pc)
120: {
121: env->halted = 1;
122: env->exception_index = EXCP_HLT;
123: env->pc = next_pc;
124: cpu_loop_exit();
125: }
126:
127: void helper_trapa(uint32_t tra)
128: {
129: env->tra = tra << 2;
1.1.1.8 ! root 130: raise_exception(0x160, GETPC());
1.1.1.4 root 131: }
132:
1.1.1.5 root 133: void helper_movcal(uint32_t address, uint32_t value)
134: {
135: if (cpu_sh4_is_cached (env, address))
136: {
137: memory_content *r = malloc (sizeof(memory_content));
138: r->address = address;
139: r->value = value;
140: r->next = NULL;
141:
142: *(env->movcal_backup_tail) = r;
143: env->movcal_backup_tail = &(r->next);
144: }
145: }
146:
147: void helper_discard_movcal_backup(void)
148: {
149: memory_content *current = env->movcal_backup;
150:
151: while(current)
152: {
153: memory_content *next = current->next;
154: free (current);
155: env->movcal_backup = current = next;
1.1.1.6 root 156: if (current == NULL)
1.1.1.5 root 157: env->movcal_backup_tail = &(env->movcal_backup);
158: }
159: }
160:
161: void helper_ocbi(uint32_t address)
162: {
163: memory_content **current = &(env->movcal_backup);
164: while (*current)
165: {
166: uint32_t a = (*current)->address;
167: if ((a & ~0x1F) == (address & ~0x1F))
168: {
169: memory_content *next = (*current)->next;
170: stl(a, (*current)->value);
171:
1.1.1.6 root 172: if (next == NULL)
1.1.1.5 root 173: {
174: env->movcal_backup_tail = current;
175: }
176:
177: free (*current);
178: *current = next;
179: break;
180: }
181: }
182: }
183:
1.1.1.4 root 184: uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
1.1 root 185: {
186: uint32_t tmp0, tmp1;
187:
1.1.1.4 root 188: tmp1 = arg0 + arg1;
189: tmp0 = arg1;
190: arg1 = tmp1 + (env->sr & 1);
1.1 root 191: if (tmp0 > tmp1)
192: env->sr |= SR_T;
193: else
194: env->sr &= ~SR_T;
1.1.1.4 root 195: if (tmp1 > arg1)
1.1 root 196: env->sr |= SR_T;
1.1.1.4 root 197: return arg1;
1.1 root 198: }
199:
1.1.1.4 root 200: uint32_t helper_addv(uint32_t arg0, uint32_t arg1)
1.1 root 201: {
202: uint32_t dest, src, ans;
203:
1.1.1.4 root 204: if ((int32_t) arg1 >= 0)
1.1 root 205: dest = 0;
206: else
207: dest = 1;
1.1.1.4 root 208: if ((int32_t) arg0 >= 0)
1.1 root 209: src = 0;
210: else
211: src = 1;
212: src += dest;
1.1.1.4 root 213: arg1 += arg0;
214: if ((int32_t) arg1 >= 0)
1.1 root 215: ans = 0;
216: else
217: ans = 1;
218: ans += dest;
219: if (src == 0 || src == 2) {
220: if (ans == 1)
221: env->sr |= SR_T;
222: else
223: env->sr &= ~SR_T;
224: } else
225: env->sr &= ~SR_T;
1.1.1.4 root 226: return arg1;
1.1 root 227: }
228:
229: #define T (env->sr & SR_T)
230: #define Q (env->sr & SR_Q ? 1 : 0)
231: #define M (env->sr & SR_M ? 1 : 0)
232: #define SETT env->sr |= SR_T
233: #define CLRT env->sr &= ~SR_T
234: #define SETQ env->sr |= SR_Q
235: #define CLRQ env->sr &= ~SR_Q
236: #define SETM env->sr |= SR_M
237: #define CLRM env->sr &= ~SR_M
238:
1.1.1.4 root 239: uint32_t helper_div1(uint32_t arg0, uint32_t arg1)
1.1 root 240: {
241: uint32_t tmp0, tmp2;
242: uint8_t old_q, tmp1 = 0xff;
243:
1.1.1.4 root 244: //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
1.1 root 245: old_q = Q;
1.1.1.4 root 246: if ((0x80000000 & arg1) != 0)
1.1 root 247: SETQ;
248: else
249: CLRQ;
1.1.1.4 root 250: tmp2 = arg0;
251: arg1 <<= 1;
252: arg1 |= T;
1.1 root 253: switch (old_q) {
254: case 0:
255: switch (M) {
256: case 0:
1.1.1.4 root 257: tmp0 = arg1;
258: arg1 -= tmp2;
259: tmp1 = arg1 > tmp0;
1.1 root 260: switch (Q) {
261: case 0:
262: if (tmp1)
263: SETQ;
264: else
265: CLRQ;
266: break;
267: case 1:
268: if (tmp1 == 0)
269: SETQ;
270: else
271: CLRQ;
272: break;
273: }
274: break;
275: case 1:
1.1.1.4 root 276: tmp0 = arg1;
277: arg1 += tmp2;
278: tmp1 = arg1 < tmp0;
1.1 root 279: switch (Q) {
280: case 0:
281: if (tmp1 == 0)
282: SETQ;
283: else
284: CLRQ;
285: break;
286: case 1:
287: if (tmp1)
288: SETQ;
289: else
290: CLRQ;
291: break;
292: }
293: break;
294: }
295: break;
296: case 1:
297: switch (M) {
298: case 0:
1.1.1.4 root 299: tmp0 = arg1;
300: arg1 += tmp2;
301: tmp1 = arg1 < tmp0;
1.1 root 302: switch (Q) {
303: case 0:
304: if (tmp1)
305: SETQ;
306: else
307: CLRQ;
308: break;
309: case 1:
310: if (tmp1 == 0)
311: SETQ;
312: else
313: CLRQ;
314: break;
315: }
316: break;
317: case 1:
1.1.1.4 root 318: tmp0 = arg1;
319: arg1 -= tmp2;
320: tmp1 = arg1 > tmp0;
1.1 root 321: switch (Q) {
322: case 0:
323: if (tmp1 == 0)
324: SETQ;
325: else
326: CLRQ;
327: break;
328: case 1:
329: if (tmp1)
330: SETQ;
331: else
332: CLRQ;
333: break;
334: }
335: break;
336: }
337: break;
338: }
339: if (Q == M)
340: SETT;
341: else
342: CLRT;
1.1.1.4 root 343: //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
344: return arg1;
1.1 root 345: }
346:
1.1.1.4 root 347: void helper_macl(uint32_t arg0, uint32_t arg1)
1.1 root 348: {
349: int64_t res;
350:
351: res = ((uint64_t) env->mach << 32) | env->macl;
1.1.1.4 root 352: res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
1.1 root 353: env->mach = (res >> 32) & 0xffffffff;
354: env->macl = res & 0xffffffff;
355: if (env->sr & SR_S) {
356: if (res < 0)
357: env->mach |= 0xffff0000;
358: else
359: env->mach &= 0x00007fff;
360: }
361: }
362:
1.1.1.4 root 363: void helper_macw(uint32_t arg0, uint32_t arg1)
1.1 root 364: {
365: int64_t res;
366:
367: res = ((uint64_t) env->mach << 32) | env->macl;
1.1.1.4 root 368: res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
1.1 root 369: env->mach = (res >> 32) & 0xffffffff;
370: env->macl = res & 0xffffffff;
371: if (env->sr & SR_S) {
372: if (res < -0x80000000) {
373: env->mach = 1;
374: env->macl = 0x80000000;
375: } else if (res > 0x000000007fffffff) {
376: env->mach = 1;
377: env->macl = 0x7fffffff;
378: }
379: }
380: }
381:
1.1.1.4 root 382: uint32_t helper_subc(uint32_t arg0, uint32_t arg1)
1.1 root 383: {
384: uint32_t tmp0, tmp1;
385:
1.1.1.4 root 386: tmp1 = arg1 - arg0;
387: tmp0 = arg1;
388: arg1 = tmp1 - (env->sr & SR_T);
1.1 root 389: if (tmp0 < tmp1)
390: env->sr |= SR_T;
391: else
392: env->sr &= ~SR_T;
1.1.1.4 root 393: if (tmp1 < arg1)
1.1 root 394: env->sr |= SR_T;
1.1.1.4 root 395: return arg1;
1.1 root 396: }
397:
1.1.1.4 root 398: uint32_t helper_subv(uint32_t arg0, uint32_t arg1)
1.1 root 399: {
400: int32_t dest, src, ans;
401:
1.1.1.4 root 402: if ((int32_t) arg1 >= 0)
1.1 root 403: dest = 0;
404: else
405: dest = 1;
1.1.1.4 root 406: if ((int32_t) arg0 >= 0)
1.1 root 407: src = 0;
408: else
409: src = 1;
410: src += dest;
1.1.1.4 root 411: arg1 -= arg0;
412: if ((int32_t) arg1 >= 0)
1.1 root 413: ans = 0;
414: else
415: ans = 1;
416: ans += dest;
417: if (src == 1) {
418: if (ans == 1)
419: env->sr |= SR_T;
420: else
421: env->sr &= ~SR_T;
422: } else
423: env->sr &= ~SR_T;
1.1.1.4 root 424: return arg1;
1.1 root 425: }
426:
1.1.1.4 root 427: static inline void set_t(void)
1.1 root 428: {
1.1.1.4 root 429: env->sr |= SR_T;
430: }
1.1 root 431:
1.1.1.4 root 432: static inline void clr_t(void)
433: {
434: env->sr &= ~SR_T;
435: }
436:
437: void helper_ld_fpscr(uint32_t val)
438: {
1.1.1.8 ! root 439: env->fpscr = val & FPSCR_MASK;
! 440: if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
1.1.1.4 root 441: set_float_rounding_mode(float_round_to_zero, &env->fp_status);
1.1.1.8 ! root 442: } else {
1.1.1.4 root 443: set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
1.1.1.8 ! root 444: }
! 445: set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
! 446: }
! 447:
! 448: static void update_fpscr(void *retaddr)
! 449: {
! 450: int xcpt, cause, enable;
! 451:
! 452: xcpt = get_float_exception_flags(&env->fp_status);
! 453:
! 454: /* Clear the flag entries */
! 455: env->fpscr &= ~FPSCR_FLAG_MASK;
! 456:
! 457: if (unlikely(xcpt)) {
! 458: if (xcpt & float_flag_invalid) {
! 459: env->fpscr |= FPSCR_FLAG_V;
! 460: }
! 461: if (xcpt & float_flag_divbyzero) {
! 462: env->fpscr |= FPSCR_FLAG_Z;
! 463: }
! 464: if (xcpt & float_flag_overflow) {
! 465: env->fpscr |= FPSCR_FLAG_O;
! 466: }
! 467: if (xcpt & float_flag_underflow) {
! 468: env->fpscr |= FPSCR_FLAG_U;
! 469: }
! 470: if (xcpt & float_flag_inexact) {
! 471: env->fpscr |= FPSCR_FLAG_I;
! 472: }
! 473:
! 474: /* Accumulate in cause entries */
! 475: env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
! 476: << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
! 477:
! 478: /* Generate an exception if enabled */
! 479: cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
! 480: enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
! 481: if (cause & enable) {
! 482: cpu_restore_state_from_retaddr(retaddr);
! 483: env->exception_index = 0x120;
! 484: cpu_loop_exit();
! 485: }
! 486: }
1.1 root 487: }
488:
1.1.1.4 root 489: uint32_t helper_fabs_FT(uint32_t t0)
1.1 root 490: {
1.1.1.4 root 491: CPU_FloatU f;
492: f.l = t0;
493: f.f = float32_abs(f.f);
494: return f.l;
495: }
1.1 root 496:
1.1.1.4 root 497: uint64_t helper_fabs_DT(uint64_t t0)
498: {
499: CPU_DoubleU d;
500: d.ll = t0;
501: d.d = float64_abs(d.d);
502: return d.ll;
503: }
504:
505: uint32_t helper_fadd_FT(uint32_t t0, uint32_t t1)
506: {
507: CPU_FloatU f0, f1;
508: f0.l = t0;
509: f1.l = t1;
1.1.1.8 ! root 510: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 511: f0.f = float32_add(f0.f, f1.f, &env->fp_status);
1.1.1.8 ! root 512: update_fpscr(GETPC());
1.1.1.4 root 513: return f0.l;
514: }
515:
516: uint64_t helper_fadd_DT(uint64_t t0, uint64_t t1)
517: {
518: CPU_DoubleU d0, d1;
519: d0.ll = t0;
520: d1.ll = t1;
1.1.1.8 ! root 521: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 522: d0.d = float64_add(d0.d, d1.d, &env->fp_status);
1.1.1.8 ! root 523: update_fpscr(GETPC());
1.1.1.4 root 524: return d0.ll;
525: }
526:
527: void helper_fcmp_eq_FT(uint32_t t0, uint32_t t1)
528: {
529: CPU_FloatU f0, f1;
1.1.1.8 ! root 530: int relation;
1.1.1.4 root 531: f0.l = t0;
532: f1.l = t1;
533:
1.1.1.8 ! root 534: set_float_exception_flags(0, &env->fp_status);
! 535: relation = float32_compare(f0.f, f1.f, &env->fp_status);
! 536: if (unlikely(relation == float_relation_unordered)) {
! 537: update_fpscr(GETPC());
! 538: } else if (relation == float_relation_equal) {
1.1.1.4 root 539: set_t();
1.1.1.8 ! root 540: } else {
1.1.1.4 root 541: clr_t();
1.1.1.8 ! root 542: }
1.1.1.4 root 543: }
544:
545: void helper_fcmp_eq_DT(uint64_t t0, uint64_t t1)
546: {
547: CPU_DoubleU d0, d1;
1.1.1.8 ! root 548: int relation;
1.1.1.4 root 549: d0.ll = t0;
550: d1.ll = t1;
551:
1.1.1.8 ! root 552: set_float_exception_flags(0, &env->fp_status);
! 553: relation = float64_compare(d0.d, d1.d, &env->fp_status);
! 554: if (unlikely(relation == float_relation_unordered)) {
! 555: update_fpscr(GETPC());
! 556: } else if (relation == float_relation_equal) {
1.1.1.4 root 557: set_t();
1.1.1.8 ! root 558: } else {
1.1.1.4 root 559: clr_t();
1.1.1.8 ! root 560: }
1.1.1.4 root 561: }
562:
563: void helper_fcmp_gt_FT(uint32_t t0, uint32_t t1)
564: {
565: CPU_FloatU f0, f1;
1.1.1.8 ! root 566: int relation;
1.1.1.4 root 567: f0.l = t0;
568: f1.l = t1;
569:
1.1.1.8 ! root 570: set_float_exception_flags(0, &env->fp_status);
! 571: relation = float32_compare(f0.f, f1.f, &env->fp_status);
! 572: if (unlikely(relation == float_relation_unordered)) {
! 573: update_fpscr(GETPC());
! 574: } else if (relation == float_relation_greater) {
1.1.1.4 root 575: set_t();
1.1.1.8 ! root 576: } else {
1.1.1.4 root 577: clr_t();
1.1.1.8 ! root 578: }
1.1.1.4 root 579: }
580:
581: void helper_fcmp_gt_DT(uint64_t t0, uint64_t t1)
582: {
583: CPU_DoubleU d0, d1;
1.1.1.8 ! root 584: int relation;
1.1.1.4 root 585: d0.ll = t0;
586: d1.ll = t1;
587:
1.1.1.8 ! root 588: set_float_exception_flags(0, &env->fp_status);
! 589: relation = float64_compare(d0.d, d1.d, &env->fp_status);
! 590: if (unlikely(relation == float_relation_unordered)) {
! 591: update_fpscr(GETPC());
! 592: } else if (relation == float_relation_greater) {
1.1.1.4 root 593: set_t();
1.1.1.8 ! root 594: } else {
1.1.1.4 root 595: clr_t();
1.1.1.8 ! root 596: }
1.1.1.4 root 597: }
598:
599: uint64_t helper_fcnvsd_FT_DT(uint32_t t0)
600: {
601: CPU_DoubleU d;
602: CPU_FloatU f;
603: f.l = t0;
1.1.1.8 ! root 604: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 605: d.d = float32_to_float64(f.f, &env->fp_status);
1.1.1.8 ! root 606: update_fpscr(GETPC());
1.1.1.4 root 607: return d.ll;
608: }
609:
610: uint32_t helper_fcnvds_DT_FT(uint64_t t0)
611: {
612: CPU_DoubleU d;
613: CPU_FloatU f;
614: d.ll = t0;
1.1.1.8 ! root 615: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 616: f.f = float64_to_float32(d.d, &env->fp_status);
1.1.1.8 ! root 617: update_fpscr(GETPC());
1.1.1.4 root 618: return f.l;
619: }
620:
621: uint32_t helper_fdiv_FT(uint32_t t0, uint32_t t1)
622: {
623: CPU_FloatU f0, f1;
624: f0.l = t0;
625: f1.l = t1;
1.1.1.8 ! root 626: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 627: f0.f = float32_div(f0.f, f1.f, &env->fp_status);
1.1.1.8 ! root 628: update_fpscr(GETPC());
1.1.1.4 root 629: return f0.l;
630: }
631:
632: uint64_t helper_fdiv_DT(uint64_t t0, uint64_t t1)
633: {
634: CPU_DoubleU d0, d1;
635: d0.ll = t0;
636: d1.ll = t1;
1.1.1.8 ! root 637: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 638: d0.d = float64_div(d0.d, d1.d, &env->fp_status);
1.1.1.8 ! root 639: update_fpscr(GETPC());
1.1.1.4 root 640: return d0.ll;
641: }
642:
643: uint32_t helper_float_FT(uint32_t t0)
644: {
645: CPU_FloatU f;
1.1.1.8 ! root 646:
! 647: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 648: f.f = int32_to_float32(t0, &env->fp_status);
1.1.1.8 ! root 649: update_fpscr(GETPC());
! 650:
1.1.1.4 root 651: return f.l;
652: }
653:
654: uint64_t helper_float_DT(uint32_t t0)
655: {
656: CPU_DoubleU d;
1.1.1.8 ! root 657: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 658: d.d = int32_to_float64(t0, &env->fp_status);
1.1.1.8 ! root 659: update_fpscr(GETPC());
1.1.1.4 root 660: return d.ll;
661: }
662:
663: uint32_t helper_fmac_FT(uint32_t t0, uint32_t t1, uint32_t t2)
664: {
665: CPU_FloatU f0, f1, f2;
666: f0.l = t0;
667: f1.l = t1;
668: f2.l = t2;
1.1.1.8 ! root 669: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 670: f0.f = float32_mul(f0.f, f1.f, &env->fp_status);
671: f0.f = float32_add(f0.f, f2.f, &env->fp_status);
1.1.1.8 ! root 672: update_fpscr(GETPC());
! 673:
1.1.1.4 root 674: return f0.l;
675: }
676:
677: uint32_t helper_fmul_FT(uint32_t t0, uint32_t t1)
678: {
679: CPU_FloatU f0, f1;
680: f0.l = t0;
681: f1.l = t1;
1.1.1.8 ! root 682: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 683: f0.f = float32_mul(f0.f, f1.f, &env->fp_status);
1.1.1.8 ! root 684: update_fpscr(GETPC());
1.1.1.4 root 685: return f0.l;
686: }
687:
688: uint64_t helper_fmul_DT(uint64_t t0, uint64_t t1)
689: {
690: CPU_DoubleU d0, d1;
691: d0.ll = t0;
692: d1.ll = t1;
1.1.1.8 ! root 693: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 694: d0.d = float64_mul(d0.d, d1.d, &env->fp_status);
1.1.1.8 ! root 695: update_fpscr(GETPC());
! 696:
1.1.1.4 root 697: return d0.ll;
698: }
699:
700: uint32_t helper_fneg_T(uint32_t t0)
701: {
702: CPU_FloatU f;
703: f.l = t0;
704: f.f = float32_chs(f.f);
705: return f.l;
706: }
707:
708: uint32_t helper_fsqrt_FT(uint32_t t0)
709: {
710: CPU_FloatU f;
711: f.l = t0;
1.1.1.8 ! root 712: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 713: f.f = float32_sqrt(f.f, &env->fp_status);
1.1.1.8 ! root 714: update_fpscr(GETPC());
1.1.1.4 root 715: return f.l;
716: }
717:
718: uint64_t helper_fsqrt_DT(uint64_t t0)
719: {
720: CPU_DoubleU d;
721: d.ll = t0;
1.1.1.8 ! root 722: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 723: d.d = float64_sqrt(d.d, &env->fp_status);
1.1.1.8 ! root 724: update_fpscr(GETPC());
1.1.1.4 root 725: return d.ll;
726: }
727:
728: uint32_t helper_fsub_FT(uint32_t t0, uint32_t t1)
729: {
730: CPU_FloatU f0, f1;
731: f0.l = t0;
732: f1.l = t1;
1.1.1.8 ! root 733: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 734: f0.f = float32_sub(f0.f, f1.f, &env->fp_status);
1.1.1.8 ! root 735: update_fpscr(GETPC());
1.1.1.4 root 736: return f0.l;
737: }
738:
739: uint64_t helper_fsub_DT(uint64_t t0, uint64_t t1)
740: {
741: CPU_DoubleU d0, d1;
1.1.1.8 ! root 742:
1.1.1.4 root 743: d0.ll = t0;
744: d1.ll = t1;
1.1.1.8 ! root 745: set_float_exception_flags(0, &env->fp_status);
1.1.1.4 root 746: d0.d = float64_sub(d0.d, d1.d, &env->fp_status);
1.1.1.8 ! root 747: update_fpscr(GETPC());
1.1.1.4 root 748: return d0.ll;
749: }
750:
751: uint32_t helper_ftrc_FT(uint32_t t0)
752: {
753: CPU_FloatU f;
1.1.1.8 ! root 754: uint32_t ret;
1.1.1.4 root 755: f.l = t0;
1.1.1.8 ! root 756: set_float_exception_flags(0, &env->fp_status);
! 757: ret = float32_to_int32_round_to_zero(f.f, &env->fp_status);
! 758: update_fpscr(GETPC());
! 759: return ret;
1.1.1.4 root 760: }
761:
762: uint32_t helper_ftrc_DT(uint64_t t0)
763: {
764: CPU_DoubleU d;
1.1.1.8 ! root 765: uint32_t ret;
1.1.1.4 root 766: d.ll = t0;
1.1.1.8 ! root 767: set_float_exception_flags(0, &env->fp_status);
! 768: ret = float64_to_int32_round_to_zero(d.d, &env->fp_status);
! 769: update_fpscr(GETPC());
! 770: return ret;
! 771: }
! 772:
! 773: void helper_fipr(uint32_t m, uint32_t n)
! 774: {
! 775: int bank, i;
! 776: float32 r, p;
! 777:
! 778: bank = (env->sr & FPSCR_FR) ? 16 : 0;
! 779: r = float32_zero;
! 780: set_float_exception_flags(0, &env->fp_status);
! 781:
! 782: for (i = 0 ; i < 4 ; i++) {
! 783: p = float32_mul(env->fregs[bank + m + i],
! 784: env->fregs[bank + n + i],
! 785: &env->fp_status);
! 786: r = float32_add(r, p, &env->fp_status);
! 787: }
! 788: update_fpscr(GETPC());
! 789:
! 790: env->fregs[bank + n + 3] = r;
! 791: }
! 792:
! 793: void helper_ftrv(uint32_t n)
! 794: {
! 795: int bank_matrix, bank_vector;
! 796: int i, j;
! 797: float32 r[4];
! 798: float32 p;
! 799:
! 800: bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
! 801: bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
! 802: set_float_exception_flags(0, &env->fp_status);
! 803: for (i = 0 ; i < 4 ; i++) {
! 804: r[i] = float32_zero;
! 805: for (j = 0 ; j < 4 ; j++) {
! 806: p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
! 807: env->fregs[bank_vector + j],
! 808: &env->fp_status);
! 809: r[i] = float32_add(r[i], p, &env->fp_status);
! 810: }
! 811: }
! 812: update_fpscr(GETPC());
! 813:
! 814: for (i = 0 ; i < 4 ; i++) {
! 815: env->fregs[bank_vector + i] = r[i];
! 816: }
1.1 root 817: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.