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1.1 root 1: /*
2: * Alpha emulation cpu micro-operations helpers for qemu.
3: *
4: * Copyright (c) 2007 Jocelyn Mayer
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
17: * License along with this library; if not, write to the Free Software
1.1.1.2 ! root 18: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
1.1 root 19: */
20:
21: #include "exec.h"
22: #include "host-utils.h"
23: #include "softfloat.h"
1.1.1.2 ! root 24: #include "helper.h"
1.1 root 25:
26: void helper_tb_flush (void)
27: {
28: tlb_flush(env, 1);
29: }
30:
31: /*****************************************************************************/
32: /* Exceptions processing helpers */
1.1.1.2 ! root 33: void helper_excp (int excp, int error)
1.1 root 34: {
35: env->exception_index = excp;
36: env->error_code = error;
37: cpu_loop_exit();
38: }
39:
1.1.1.2 ! root 40: uint64_t helper_amask (uint64_t arg)
1.1 root 41: {
42: switch (env->implver) {
43: case IMPLVER_2106x:
44: /* EV4, EV45, LCA, LCA45 & EV5 */
45: break;
46: case IMPLVER_21164:
47: case IMPLVER_21264:
48: case IMPLVER_21364:
1.1.1.2 ! root 49: arg &= ~env->amask;
1.1 root 50: break;
51: }
1.1.1.2 ! root 52: return arg;
1.1 root 53: }
54:
1.1.1.2 ! root 55: uint64_t helper_load_pcc (void)
1.1 root 56: {
57: /* XXX: TODO */
1.1.1.2 ! root 58: return 0;
1.1 root 59: }
60:
1.1.1.2 ! root 61: uint64_t helper_load_implver (void)
1.1 root 62: {
1.1.1.2 ! root 63: return env->implver;
1.1 root 64: }
65:
1.1.1.2 ! root 66: uint64_t helper_load_fpcr (void)
1.1 root 67: {
1.1.1.2 ! root 68: uint64_t ret = 0;
1.1 root 69: #ifdef CONFIG_SOFTFLOAT
1.1.1.2 ! root 70: ret |= env->fp_status.float_exception_flags << 52;
1.1 root 71: if (env->fp_status.float_exception_flags)
1.1.1.2 ! root 72: ret |= 1ULL << 63;
1.1 root 73: env->ipr[IPR_EXC_SUM] &= ~0x3E:
74: env->ipr[IPR_EXC_SUM] |= env->fp_status.float_exception_flags << 1;
75: #endif
76: switch (env->fp_status.float_rounding_mode) {
77: case float_round_nearest_even:
1.1.1.2 ! root 78: ret |= 2ULL << 58;
1.1 root 79: break;
80: case float_round_down:
1.1.1.2 ! root 81: ret |= 1ULL << 58;
1.1 root 82: break;
83: case float_round_up:
1.1.1.2 ! root 84: ret |= 3ULL << 58;
1.1 root 85: break;
86: case float_round_to_zero:
87: break;
88: }
1.1.1.2 ! root 89: return ret;
1.1 root 90: }
91:
1.1.1.2 ! root 92: void helper_store_fpcr (uint64_t val)
1.1 root 93: {
94: #ifdef CONFIG_SOFTFLOAT
1.1.1.2 ! root 95: set_float_exception_flags((val >> 52) & 0x3F, &FP_STATUS);
1.1 root 96: #endif
1.1.1.2 ! root 97: switch ((val >> 58) & 3) {
1.1 root 98: case 0:
99: set_float_rounding_mode(float_round_to_zero, &FP_STATUS);
100: break;
101: case 1:
102: set_float_rounding_mode(float_round_down, &FP_STATUS);
103: break;
104: case 2:
105: set_float_rounding_mode(float_round_nearest_even, &FP_STATUS);
106: break;
107: case 3:
108: set_float_rounding_mode(float_round_up, &FP_STATUS);
109: break;
110: }
111: }
112:
1.1.1.2 ! root 113: spinlock_t intr_cpu_lock = SPIN_LOCK_UNLOCKED;
1.1 root 114:
1.1.1.2 ! root 115: uint64_t helper_rs(void)
1.1 root 116: {
1.1.1.2 ! root 117: uint64_t tmp;
! 118:
! 119: spin_lock(&intr_cpu_lock);
! 120: tmp = env->intr_flag;
! 121: env->intr_flag = 1;
! 122: spin_unlock(&intr_cpu_lock);
! 123:
! 124: return tmp;
1.1 root 125: }
126:
1.1.1.2 ! root 127: uint64_t helper_rc(void)
1.1 root 128: {
1.1.1.2 ! root 129: uint64_t tmp;
! 130:
! 131: spin_lock(&intr_cpu_lock);
! 132: tmp = env->intr_flag;
! 133: env->intr_flag = 0;
! 134: spin_unlock(&intr_cpu_lock);
! 135:
! 136: return tmp;
1.1 root 137: }
138:
1.1.1.2 ! root 139: uint64_t helper_addqv (uint64_t op1, uint64_t op2)
1.1 root 140: {
1.1.1.2 ! root 141: uint64_t tmp = op1;
! 142: op1 += op2;
! 143: if (unlikely((tmp ^ op2 ^ (-1ULL)) & (tmp ^ op1) & (1ULL << 63))) {
1.1 root 144: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
145: }
1.1.1.2 ! root 146: return op1;
1.1 root 147: }
148:
1.1.1.2 ! root 149: uint64_t helper_addlv (uint64_t op1, uint64_t op2)
1.1 root 150: {
1.1.1.2 ! root 151: uint64_t tmp = op1;
! 152: op1 = (uint32_t)(op1 + op2);
! 153: if (unlikely((tmp ^ op2 ^ (-1UL)) & (tmp ^ op1) & (1UL << 31))) {
1.1 root 154: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
155: }
1.1.1.2 ! root 156: return op1;
1.1 root 157: }
158:
1.1.1.2 ! root 159: uint64_t helper_subqv (uint64_t op1, uint64_t op2)
1.1 root 160: {
1.1.1.2 ! root 161: uint64_t tmp = op1;
! 162: op1 -= op2;
! 163: if (unlikely(((~tmp) ^ op1 ^ (-1ULL)) & ((~tmp) ^ op2) & (1ULL << 63))) {
1.1 root 164: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
165: }
1.1.1.2 ! root 166: return op1;
1.1 root 167: }
168:
1.1.1.2 ! root 169: uint64_t helper_sublv (uint64_t op1, uint64_t op2)
1.1 root 170: {
1.1.1.2 ! root 171: uint64_t tmp = op1;
! 172: op1 = (uint32_t)(op1 - op2);
! 173: if (unlikely(((~tmp) ^ op1 ^ (-1UL)) & ((~tmp) ^ op2) & (1UL << 31))) {
1.1 root 174: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
175: }
1.1.1.2 ! root 176: return op1;
1.1 root 177: }
178:
1.1.1.2 ! root 179: uint64_t helper_mullv (uint64_t op1, uint64_t op2)
1.1 root 180: {
1.1.1.2 ! root 181: int64_t res = (int64_t)op1 * (int64_t)op2;
1.1 root 182:
183: if (unlikely((int32_t)res != res)) {
184: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
185: }
1.1.1.2 ! root 186: return (int64_t)((int32_t)res);
1.1 root 187: }
188:
1.1.1.2 ! root 189: uint64_t helper_mulqv (uint64_t op1, uint64_t op2)
1.1 root 190: {
191: uint64_t tl, th;
192:
1.1.1.2 ! root 193: muls64(&tl, &th, op1, op2);
1.1 root 194: /* If th != 0 && th != -1, then we had an overflow */
195: if (unlikely((th + 1) > 1)) {
196: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
197: }
1.1.1.2 ! root 198: return tl;
1.1 root 199: }
200:
1.1.1.2 ! root 201: uint64_t helper_umulh (uint64_t op1, uint64_t op2)
1.1 root 202: {
1.1.1.2 ! root 203: uint64_t tl, th;
! 204:
! 205: mulu64(&tl, &th, op1, op2);
! 206: return th;
1.1 root 207: }
208:
1.1.1.2 ! root 209: uint64_t helper_ctpop (uint64_t arg)
1.1 root 210: {
1.1.1.2 ! root 211: return ctpop64(arg);
1.1 root 212: }
213:
1.1.1.2 ! root 214: uint64_t helper_ctlz (uint64_t arg)
1.1 root 215: {
1.1.1.2 ! root 216: return clz64(arg);
! 217: }
! 218:
! 219: uint64_t helper_cttz (uint64_t arg)
! 220: {
! 221: return ctz64(arg);
1.1 root 222: }
223:
224: static always_inline uint64_t byte_zap (uint64_t op, uint8_t mskb)
225: {
226: uint64_t mask;
227:
228: mask = 0;
229: mask |= ((mskb >> 0) & 1) * 0x00000000000000FFULL;
230: mask |= ((mskb >> 1) & 1) * 0x000000000000FF00ULL;
231: mask |= ((mskb >> 2) & 1) * 0x0000000000FF0000ULL;
232: mask |= ((mskb >> 3) & 1) * 0x00000000FF000000ULL;
233: mask |= ((mskb >> 4) & 1) * 0x000000FF00000000ULL;
234: mask |= ((mskb >> 5) & 1) * 0x0000FF0000000000ULL;
235: mask |= ((mskb >> 6) & 1) * 0x00FF000000000000ULL;
236: mask |= ((mskb >> 7) & 1) * 0xFF00000000000000ULL;
237:
238: return op & ~mask;
239: }
240:
1.1.1.2 ! root 241: uint64_t helper_mskbl(uint64_t val, uint64_t mask)
1.1 root 242: {
1.1.1.2 ! root 243: return byte_zap(val, 0x01 << (mask & 7));
1.1 root 244: }
245:
1.1.1.2 ! root 246: uint64_t helper_insbl(uint64_t val, uint64_t mask)
1.1 root 247: {
1.1.1.2 ! root 248: val <<= (mask & 7) * 8;
! 249: return byte_zap(val, ~(0x01 << (mask & 7)));
1.1 root 250: }
251:
1.1.1.2 ! root 252: uint64_t helper_mskwl(uint64_t val, uint64_t mask)
1.1 root 253: {
1.1.1.2 ! root 254: return byte_zap(val, 0x03 << (mask & 7));
1.1 root 255: }
256:
1.1.1.2 ! root 257: uint64_t helper_inswl(uint64_t val, uint64_t mask)
1.1 root 258: {
1.1.1.2 ! root 259: val <<= (mask & 7) * 8;
! 260: return byte_zap(val, ~(0x03 << (mask & 7)));
1.1 root 261: }
262:
1.1.1.2 ! root 263: uint64_t helper_mskll(uint64_t val, uint64_t mask)
1.1 root 264: {
1.1.1.2 ! root 265: return byte_zap(val, 0x0F << (mask & 7));
1.1 root 266: }
267:
1.1.1.2 ! root 268: uint64_t helper_insll(uint64_t val, uint64_t mask)
1.1 root 269: {
1.1.1.2 ! root 270: val <<= (mask & 7) * 8;
! 271: return byte_zap(val, ~(0x0F << (mask & 7)));
1.1 root 272: }
273:
1.1.1.2 ! root 274: uint64_t helper_zap(uint64_t val, uint64_t mask)
1.1 root 275: {
1.1.1.2 ! root 276: return byte_zap(val, mask);
1.1 root 277: }
278:
1.1.1.2 ! root 279: uint64_t helper_zapnot(uint64_t val, uint64_t mask)
1.1 root 280: {
1.1.1.2 ! root 281: return byte_zap(val, ~mask);
1.1 root 282: }
283:
1.1.1.2 ! root 284: uint64_t helper_mskql(uint64_t val, uint64_t mask)
1.1 root 285: {
1.1.1.2 ! root 286: return byte_zap(val, 0xFF << (mask & 7));
1.1 root 287: }
288:
1.1.1.2 ! root 289: uint64_t helper_insql(uint64_t val, uint64_t mask)
1.1 root 290: {
1.1.1.2 ! root 291: val <<= (mask & 7) * 8;
! 292: return byte_zap(val, ~(0xFF << (mask & 7)));
1.1 root 293: }
294:
1.1.1.2 ! root 295: uint64_t helper_mskwh(uint64_t val, uint64_t mask)
1.1 root 296: {
1.1.1.2 ! root 297: return byte_zap(val, (0x03 << (mask & 7)) >> 8);
1.1 root 298: }
299:
1.1.1.2 ! root 300: uint64_t helper_inswh(uint64_t val, uint64_t mask)
1.1 root 301: {
1.1.1.2 ! root 302: val >>= 64 - ((mask & 7) * 8);
! 303: return byte_zap(val, ~((0x03 << (mask & 7)) >> 8));
1.1 root 304: }
305:
1.1.1.2 ! root 306: uint64_t helper_msklh(uint64_t val, uint64_t mask)
1.1 root 307: {
1.1.1.2 ! root 308: return byte_zap(val, (0x0F << (mask & 7)) >> 8);
1.1 root 309: }
310:
1.1.1.2 ! root 311: uint64_t helper_inslh(uint64_t val, uint64_t mask)
1.1 root 312: {
1.1.1.2 ! root 313: val >>= 64 - ((mask & 7) * 8);
! 314: return byte_zap(val, ~((0x0F << (mask & 7)) >> 8));
1.1 root 315: }
316:
1.1.1.2 ! root 317: uint64_t helper_mskqh(uint64_t val, uint64_t mask)
1.1 root 318: {
1.1.1.2 ! root 319: return byte_zap(val, (0xFF << (mask & 7)) >> 8);
1.1 root 320: }
321:
1.1.1.2 ! root 322: uint64_t helper_insqh(uint64_t val, uint64_t mask)
1.1 root 323: {
1.1.1.2 ! root 324: val >>= 64 - ((mask & 7) * 8);
! 325: return byte_zap(val, ~((0xFF << (mask & 7)) >> 8));
1.1 root 326: }
327:
1.1.1.2 ! root 328: uint64_t helper_cmpbge (uint64_t op1, uint64_t op2)
1.1 root 329: {
1.1.1.2 ! root 330: uint8_t opa, opb, res;
! 331: int i;
1.1 root 332:
1.1.1.2 ! root 333: res = 0;
! 334: for (i = 0; i < 8; i++) {
! 335: opa = op1 >> (i * 8);
! 336: opb = op2 >> (i * 8);
! 337: if (opa >= opb)
! 338: res |= 1 << i;
! 339: }
! 340: return res;
1.1 root 341: }
342:
1.1.1.2 ! root 343: /* Floating point helpers */
1.1 root 344:
1.1.1.2 ! root 345: /* F floating (VAX) */
! 346: static always_inline uint64_t float32_to_f (float32 fa)
1.1 root 347: {
1.1.1.2 ! root 348: uint64_t r, exp, mant, sig;
! 349: CPU_FloatU a;
! 350:
! 351: a.f = fa;
! 352: sig = ((uint64_t)a.l & 0x80000000) << 32;
! 353: exp = (a.l >> 23) & 0xff;
! 354: mant = ((uint64_t)a.l & 0x007fffff) << 29;
! 355:
! 356: if (exp == 255) {
! 357: /* NaN or infinity */
! 358: r = 1; /* VAX dirty zero */
! 359: } else if (exp == 0) {
! 360: if (mant == 0) {
! 361: /* Zero */
! 362: r = 0;
! 363: } else {
! 364: /* Denormalized */
! 365: r = sig | ((exp + 1) << 52) | mant;
! 366: }
! 367: } else {
! 368: if (exp >= 253) {
! 369: /* Overflow */
! 370: r = 1; /* VAX dirty zero */
! 371: } else {
! 372: r = sig | ((exp + 2) << 52);
! 373: }
! 374: }
! 375:
! 376: return r;
1.1 root 377: }
378:
1.1.1.2 ! root 379: static always_inline float32 f_to_float32 (uint64_t a)
1.1 root 380: {
1.1.1.2 ! root 381: uint32_t exp, mant_sig;
! 382: CPU_FloatU r;
! 383:
! 384: exp = ((a >> 55) & 0x80) | ((a >> 52) & 0x7f);
! 385: mant_sig = ((a >> 32) & 0x80000000) | ((a >> 29) & 0x007fffff);
! 386:
! 387: if (unlikely(!exp && mant_sig)) {
! 388: /* Reserved operands / Dirty zero */
! 389: helper_excp(EXCP_OPCDEC, 0);
! 390: }
! 391:
! 392: if (exp < 3) {
! 393: /* Underflow */
! 394: r.l = 0;
! 395: } else {
! 396: r.l = ((exp - 2) << 23) | mant_sig;
! 397: }
! 398:
! 399: return r.f;
1.1 root 400: }
401:
1.1.1.2 ! root 402: uint32_t helper_f_to_memory (uint64_t a)
1.1 root 403: {
1.1.1.2 ! root 404: uint32_t r;
! 405: r = (a & 0x00001fffe0000000ull) >> 13;
! 406: r |= (a & 0x07ffe00000000000ull) >> 45;
! 407: r |= (a & 0xc000000000000000ull) >> 48;
! 408: return r;
1.1 root 409: }
410:
1.1.1.2 ! root 411: uint64_t helper_memory_to_f (uint32_t a)
1.1 root 412: {
1.1.1.2 ! root 413: uint64_t r;
! 414: r = ((uint64_t)(a & 0x0000c000)) << 48;
! 415: r |= ((uint64_t)(a & 0x003fffff)) << 45;
! 416: r |= ((uint64_t)(a & 0xffff0000)) << 13;
! 417: if (!(a & 0x00004000))
! 418: r |= 0x7ll << 59;
! 419: return r;
1.1 root 420: }
421:
1.1.1.2 ! root 422: uint64_t helper_addf (uint64_t a, uint64_t b)
1.1 root 423: {
1.1.1.2 ! root 424: float32 fa, fb, fr;
1.1 root 425:
1.1.1.2 ! root 426: fa = f_to_float32(a);
! 427: fb = f_to_float32(b);
! 428: fr = float32_add(fa, fb, &FP_STATUS);
! 429: return float32_to_f(fr);
1.1 root 430: }
431:
1.1.1.2 ! root 432: uint64_t helper_subf (uint64_t a, uint64_t b)
1.1 root 433: {
1.1.1.2 ! root 434: float32 fa, fb, fr;
1.1 root 435:
1.1.1.2 ! root 436: fa = f_to_float32(a);
! 437: fb = f_to_float32(b);
! 438: fr = float32_sub(fa, fb, &FP_STATUS);
! 439: return float32_to_f(fr);
1.1 root 440: }
441:
1.1.1.2 ! root 442: uint64_t helper_mulf (uint64_t a, uint64_t b)
1.1 root 443: {
1.1.1.2 ! root 444: float32 fa, fb, fr;
1.1 root 445:
1.1.1.2 ! root 446: fa = f_to_float32(a);
! 447: fb = f_to_float32(b);
! 448: fr = float32_mul(fa, fb, &FP_STATUS);
! 449: return float32_to_f(fr);
1.1 root 450: }
451:
1.1.1.2 ! root 452: uint64_t helper_divf (uint64_t a, uint64_t b)
1.1 root 453: {
1.1.1.2 ! root 454: float32 fa, fb, fr;
1.1 root 455:
1.1.1.2 ! root 456: fa = f_to_float32(a);
! 457: fb = f_to_float32(b);
! 458: fr = float32_div(fa, fb, &FP_STATUS);
! 459: return float32_to_f(fr);
1.1 root 460: }
461:
1.1.1.2 ! root 462: uint64_t helper_sqrtf (uint64_t t)
1.1 root 463: {
1.1.1.2 ! root 464: float32 ft, fr;
1.1 root 465:
1.1.1.2 ! root 466: ft = f_to_float32(t);
! 467: fr = float32_sqrt(ft, &FP_STATUS);
! 468: return float32_to_f(fr);
1.1 root 469: }
470:
1.1.1.2 ! root 471:
! 472: /* G floating (VAX) */
! 473: static always_inline uint64_t float64_to_g (float64 fa)
1.1 root 474: {
1.1.1.2 ! root 475: uint64_t r, exp, mant, sig;
! 476: CPU_DoubleU a;
! 477:
! 478: a.d = fa;
! 479: sig = a.ll & 0x8000000000000000ull;
! 480: exp = (a.ll >> 52) & 0x7ff;
! 481: mant = a.ll & 0x000fffffffffffffull;
! 482:
! 483: if (exp == 2047) {
! 484: /* NaN or infinity */
! 485: r = 1; /* VAX dirty zero */
! 486: } else if (exp == 0) {
! 487: if (mant == 0) {
! 488: /* Zero */
! 489: r = 0;
! 490: } else {
! 491: /* Denormalized */
! 492: r = sig | ((exp + 1) << 52) | mant;
! 493: }
! 494: } else {
! 495: if (exp >= 2045) {
! 496: /* Overflow */
! 497: r = 1; /* VAX dirty zero */
! 498: } else {
! 499: r = sig | ((exp + 2) << 52);
! 500: }
! 501: }
1.1 root 502:
1.1.1.2 ! root 503: return r;
1.1 root 504: }
505:
1.1.1.2 ! root 506: static always_inline float64 g_to_float64 (uint64_t a)
1.1 root 507: {
1.1.1.2 ! root 508: uint64_t exp, mant_sig;
! 509: CPU_DoubleU r;
! 510:
! 511: exp = (a >> 52) & 0x7ff;
! 512: mant_sig = a & 0x800fffffffffffffull;
! 513:
! 514: if (!exp && mant_sig) {
! 515: /* Reserved operands / Dirty zero */
! 516: helper_excp(EXCP_OPCDEC, 0);
! 517: }
1.1 root 518:
1.1.1.2 ! root 519: if (exp < 3) {
! 520: /* Underflow */
! 521: r.ll = 0;
! 522: } else {
! 523: r.ll = ((exp - 2) << 52) | mant_sig;
! 524: }
! 525:
! 526: return r.d;
1.1 root 527: }
528:
1.1.1.2 ! root 529: uint64_t helper_g_to_memory (uint64_t a)
1.1 root 530: {
1.1.1.2 ! root 531: uint64_t r;
! 532: r = (a & 0x000000000000ffffull) << 48;
! 533: r |= (a & 0x00000000ffff0000ull) << 16;
! 534: r |= (a & 0x0000ffff00000000ull) >> 16;
! 535: r |= (a & 0xffff000000000000ull) >> 48;
! 536: return r;
1.1 root 537: }
538:
1.1.1.2 ! root 539: uint64_t helper_memory_to_g (uint64_t a)
1.1 root 540: {
1.1.1.2 ! root 541: uint64_t r;
! 542: r = (a & 0x000000000000ffffull) << 48;
! 543: r |= (a & 0x00000000ffff0000ull) << 16;
! 544: r |= (a & 0x0000ffff00000000ull) >> 16;
! 545: r |= (a & 0xffff000000000000ull) >> 48;
! 546: return r;
1.1 root 547: }
548:
1.1.1.2 ! root 549: uint64_t helper_addg (uint64_t a, uint64_t b)
1.1 root 550: {
1.1.1.2 ! root 551: float64 fa, fb, fr;
1.1 root 552:
1.1.1.2 ! root 553: fa = g_to_float64(a);
! 554: fb = g_to_float64(b);
! 555: fr = float64_add(fa, fb, &FP_STATUS);
! 556: return float64_to_g(fr);
1.1 root 557: }
558:
1.1.1.2 ! root 559: uint64_t helper_subg (uint64_t a, uint64_t b)
1.1 root 560: {
1.1.1.2 ! root 561: float64 fa, fb, fr;
1.1 root 562:
1.1.1.2 ! root 563: fa = g_to_float64(a);
! 564: fb = g_to_float64(b);
! 565: fr = float64_sub(fa, fb, &FP_STATUS);
! 566: return float64_to_g(fr);
1.1 root 567: }
568:
1.1.1.2 ! root 569: uint64_t helper_mulg (uint64_t a, uint64_t b)
1.1 root 570: {
1.1.1.2 ! root 571: float64 fa, fb, fr;
1.1 root 572:
1.1.1.2 ! root 573: fa = g_to_float64(a);
! 574: fb = g_to_float64(b);
! 575: fr = float64_mul(fa, fb, &FP_STATUS);
! 576: return float64_to_g(fr);
1.1 root 577: }
578:
1.1.1.2 ! root 579: uint64_t helper_divg (uint64_t a, uint64_t b)
1.1 root 580: {
1.1.1.2 ! root 581: float64 fa, fb, fr;
1.1 root 582:
1.1.1.2 ! root 583: fa = g_to_float64(a);
! 584: fb = g_to_float64(b);
! 585: fr = float64_div(fa, fb, &FP_STATUS);
! 586: return float64_to_g(fr);
1.1 root 587: }
588:
1.1.1.2 ! root 589: uint64_t helper_sqrtg (uint64_t a)
1.1 root 590: {
1.1.1.2 ! root 591: float64 fa, fr;
1.1 root 592:
1.1.1.2 ! root 593: fa = g_to_float64(a);
! 594: fr = float64_sqrt(fa, &FP_STATUS);
! 595: return float64_to_g(fr);
1.1 root 596: }
597:
1.1.1.2 ! root 598:
! 599: /* S floating (single) */
! 600: static always_inline uint64_t float32_to_s (float32 fa)
1.1 root 601: {
1.1.1.2 ! root 602: CPU_FloatU a;
! 603: uint64_t r;
1.1 root 604:
1.1.1.2 ! root 605: a.f = fa;
1.1 root 606:
1.1.1.2 ! root 607: r = (((uint64_t)(a.l & 0xc0000000)) << 32) | (((uint64_t)(a.l & 0x3fffffff)) << 29);
! 608: if (((a.l & 0x7f800000) != 0x7f800000) && (!(a.l & 0x40000000)))
! 609: r |= 0x7ll << 59;
! 610: return r;
1.1 root 611: }
612:
1.1.1.2 ! root 613: static always_inline float32 s_to_float32 (uint64_t a)
1.1 root 614: {
1.1.1.2 ! root 615: CPU_FloatU r;
! 616: r.l = ((a >> 32) & 0xc0000000) | ((a >> 29) & 0x3fffffff);
! 617: return r.f;
! 618: }
1.1 root 619:
1.1.1.2 ! root 620: uint32_t helper_s_to_memory (uint64_t a)
! 621: {
! 622: /* Memory format is the same as float32 */
! 623: float32 fa = s_to_float32(a);
! 624: return *(uint32_t*)(&fa);
1.1 root 625: }
626:
1.1.1.2 ! root 627: uint64_t helper_memory_to_s (uint32_t a)
1.1 root 628: {
1.1.1.2 ! root 629: /* Memory format is the same as float32 */
! 630: return float32_to_s(*(float32*)(&a));
! 631: }
1.1 root 632:
1.1.1.2 ! root 633: uint64_t helper_adds (uint64_t a, uint64_t b)
! 634: {
! 635: float32 fa, fb, fr;
1.1 root 636:
1.1.1.2 ! root 637: fa = s_to_float32(a);
! 638: fb = s_to_float32(b);
! 639: fr = float32_add(fa, fb, &FP_STATUS);
! 640: return float32_to_s(fr);
1.1 root 641: }
642:
1.1.1.2 ! root 643: uint64_t helper_subs (uint64_t a, uint64_t b)
1.1 root 644: {
1.1.1.2 ! root 645: float32 fa, fb, fr;
1.1 root 646:
1.1.1.2 ! root 647: fa = s_to_float32(a);
! 648: fb = s_to_float32(b);
! 649: fr = float32_sub(fa, fb, &FP_STATUS);
! 650: return float32_to_s(fr);
1.1 root 651: }
652:
1.1.1.2 ! root 653: uint64_t helper_muls (uint64_t a, uint64_t b)
1.1 root 654: {
1.1.1.2 ! root 655: float32 fa, fb, fr;
1.1 root 656:
1.1.1.2 ! root 657: fa = s_to_float32(a);
! 658: fb = s_to_float32(b);
! 659: fr = float32_mul(fa, fb, &FP_STATUS);
! 660: return float32_to_s(fr);
1.1 root 661: }
662:
1.1.1.2 ! root 663: uint64_t helper_divs (uint64_t a, uint64_t b)
1.1 root 664: {
1.1.1.2 ! root 665: float32 fa, fb, fr;
1.1 root 666:
1.1.1.2 ! root 667: fa = s_to_float32(a);
! 668: fb = s_to_float32(b);
! 669: fr = float32_div(fa, fb, &FP_STATUS);
! 670: return float32_to_s(fr);
1.1 root 671: }
672:
1.1.1.2 ! root 673: uint64_t helper_sqrts (uint64_t a)
1.1 root 674: {
1.1.1.2 ! root 675: float32 fa, fr;
1.1 root 676:
1.1.1.2 ! root 677: fa = s_to_float32(a);
! 678: fr = float32_sqrt(fa, &FP_STATUS);
! 679: return float32_to_s(fr);
1.1 root 680: }
681:
682:
1.1.1.2 ! root 683: /* T floating (double) */
! 684: static always_inline float64 t_to_float64 (uint64_t a)
! 685: {
! 686: /* Memory format is the same as float64 */
! 687: CPU_DoubleU r;
! 688: r.ll = a;
! 689: return r.d;
1.1 root 690: }
691:
1.1.1.2 ! root 692: static always_inline uint64_t float64_to_t (float64 fa)
1.1 root 693: {
1.1.1.2 ! root 694: /* Memory format is the same as float64 */
! 695: CPU_DoubleU r;
! 696: r.d = fa;
! 697: return r.ll;
1.1 root 698: }
699:
1.1.1.2 ! root 700: uint64_t helper_addt (uint64_t a, uint64_t b)
1.1 root 701: {
1.1.1.2 ! root 702: float64 fa, fb, fr;
1.1 root 703:
1.1.1.2 ! root 704: fa = t_to_float64(a);
! 705: fb = t_to_float64(b);
! 706: fr = float64_add(fa, fb, &FP_STATUS);
! 707: return float64_to_t(fr);
1.1 root 708: }
709:
1.1.1.2 ! root 710: uint64_t helper_subt (uint64_t a, uint64_t b)
1.1 root 711: {
1.1.1.2 ! root 712: float64 fa, fb, fr;
1.1 root 713:
1.1.1.2 ! root 714: fa = t_to_float64(a);
! 715: fb = t_to_float64(b);
! 716: fr = float64_sub(fa, fb, &FP_STATUS);
! 717: return float64_to_t(fr);
1.1 root 718: }
719:
1.1.1.2 ! root 720: uint64_t helper_mult (uint64_t a, uint64_t b)
1.1 root 721: {
1.1.1.2 ! root 722: float64 fa, fb, fr;
1.1 root 723:
1.1.1.2 ! root 724: fa = t_to_float64(a);
! 725: fb = t_to_float64(b);
! 726: fr = float64_mul(fa, fb, &FP_STATUS);
! 727: return float64_to_t(fr);
1.1 root 728: }
729:
1.1.1.2 ! root 730: uint64_t helper_divt (uint64_t a, uint64_t b)
1.1 root 731: {
1.1.1.2 ! root 732: float64 fa, fb, fr;
1.1 root 733:
1.1.1.2 ! root 734: fa = t_to_float64(a);
! 735: fb = t_to_float64(b);
! 736: fr = float64_div(fa, fb, &FP_STATUS);
! 737: return float64_to_t(fr);
1.1 root 738: }
739:
1.1.1.2 ! root 740: uint64_t helper_sqrtt (uint64_t a)
1.1 root 741: {
1.1.1.2 ! root 742: float64 fa, fr;
1.1 root 743:
1.1.1.2 ! root 744: fa = t_to_float64(a);
! 745: fr = float64_sqrt(fa, &FP_STATUS);
! 746: return float64_to_t(fr);
1.1 root 747: }
748:
749:
1.1.1.2 ! root 750: /* Sign copy */
! 751: uint64_t helper_cpys(uint64_t a, uint64_t b)
! 752: {
! 753: return (a & 0x8000000000000000ULL) | (b & ~0x8000000000000000ULL);
1.1 root 754: }
755:
1.1.1.2 ! root 756: uint64_t helper_cpysn(uint64_t a, uint64_t b)
1.1 root 757: {
1.1.1.2 ! root 758: return ((~a) & 0x8000000000000000ULL) | (b & ~0x8000000000000000ULL);
! 759: }
1.1 root 760:
1.1.1.2 ! root 761: uint64_t helper_cpyse(uint64_t a, uint64_t b)
! 762: {
! 763: return (a & 0xFFF0000000000000ULL) | (b & ~0xFFF0000000000000ULL);
1.1 root 764: }
765:
1.1.1.2 ! root 766:
! 767: /* Comparisons */
! 768: uint64_t helper_cmptun (uint64_t a, uint64_t b)
1.1 root 769: {
1.1.1.2 ! root 770: float64 fa, fb;
1.1 root 771:
1.1.1.2 ! root 772: fa = t_to_float64(a);
! 773: fb = t_to_float64(b);
! 774:
! 775: if (float64_is_nan(fa) || float64_is_nan(fb))
! 776: return 0x4000000000000000ULL;
! 777: else
! 778: return 0;
1.1 root 779: }
780:
1.1.1.2 ! root 781: uint64_t helper_cmpteq(uint64_t a, uint64_t b)
1.1 root 782: {
1.1.1.2 ! root 783: float64 fa, fb;
1.1 root 784:
1.1.1.2 ! root 785: fa = t_to_float64(a);
! 786: fb = t_to_float64(b);
! 787:
! 788: if (float64_eq(fa, fb, &FP_STATUS))
! 789: return 0x4000000000000000ULL;
! 790: else
! 791: return 0;
1.1 root 792: }
793:
1.1.1.2 ! root 794: uint64_t helper_cmptle(uint64_t a, uint64_t b)
1.1 root 795: {
1.1.1.2 ! root 796: float64 fa, fb;
1.1 root 797:
1.1.1.2 ! root 798: fa = t_to_float64(a);
! 799: fb = t_to_float64(b);
! 800:
! 801: if (float64_le(fa, fb, &FP_STATUS))
! 802: return 0x4000000000000000ULL;
! 803: else
! 804: return 0;
1.1 root 805: }
806:
1.1.1.2 ! root 807: uint64_t helper_cmptlt(uint64_t a, uint64_t b)
1.1 root 808: {
1.1.1.2 ! root 809: float64 fa, fb;
1.1 root 810:
1.1.1.2 ! root 811: fa = t_to_float64(a);
! 812: fb = t_to_float64(b);
! 813:
! 814: if (float64_lt(fa, fb, &FP_STATUS))
! 815: return 0x4000000000000000ULL;
! 816: else
! 817: return 0;
1.1 root 818: }
819:
1.1.1.2 ! root 820: uint64_t helper_cmpgeq(uint64_t a, uint64_t b)
1.1 root 821: {
1.1.1.2 ! root 822: float64 fa, fb;
! 823:
! 824: fa = g_to_float64(a);
! 825: fb = g_to_float64(b);
1.1 root 826:
1.1.1.2 ! root 827: if (float64_eq(fa, fb, &FP_STATUS))
! 828: return 0x4000000000000000ULL;
! 829: else
! 830: return 0;
1.1 root 831: }
832:
1.1.1.2 ! root 833: uint64_t helper_cmpgle(uint64_t a, uint64_t b)
1.1 root 834: {
1.1.1.2 ! root 835: float64 fa, fb;
1.1 root 836:
1.1.1.2 ! root 837: fa = g_to_float64(a);
! 838: fb = g_to_float64(b);
! 839:
! 840: if (float64_le(fa, fb, &FP_STATUS))
! 841: return 0x4000000000000000ULL;
! 842: else
! 843: return 0;
1.1 root 844: }
845:
1.1.1.2 ! root 846: uint64_t helper_cmpglt(uint64_t a, uint64_t b)
1.1 root 847: {
1.1.1.2 ! root 848: float64 fa, fb;
! 849:
! 850: fa = g_to_float64(a);
! 851: fb = g_to_float64(b);
1.1 root 852:
1.1.1.2 ! root 853: if (float64_lt(fa, fb, &FP_STATUS))
! 854: return 0x4000000000000000ULL;
! 855: else
! 856: return 0;
1.1 root 857: }
858:
1.1.1.2 ! root 859: uint64_t helper_cmpfeq (uint64_t a)
1.1 root 860: {
1.1.1.2 ! root 861: return !(a & 0x7FFFFFFFFFFFFFFFULL);
! 862: }
1.1 root 863:
1.1.1.2 ! root 864: uint64_t helper_cmpfne (uint64_t a)
! 865: {
! 866: return (a & 0x7FFFFFFFFFFFFFFFULL);
1.1 root 867: }
868:
1.1.1.2 ! root 869: uint64_t helper_cmpflt (uint64_t a)
1.1 root 870: {
1.1.1.2 ! root 871: return (a & 0x8000000000000000ULL) && (a & 0x7FFFFFFFFFFFFFFFULL);
! 872: }
1.1 root 873:
1.1.1.2 ! root 874: uint64_t helper_cmpfle (uint64_t a)
! 875: {
! 876: return (a & 0x8000000000000000ULL) || !(a & 0x7FFFFFFFFFFFFFFFULL);
1.1 root 877: }
878:
1.1.1.2 ! root 879: uint64_t helper_cmpfgt (uint64_t a)
1.1 root 880: {
1.1.1.2 ! root 881: return !(a & 0x8000000000000000ULL) && (a & 0x7FFFFFFFFFFFFFFFULL);
1.1 root 882: }
883:
1.1.1.2 ! root 884: uint64_t helper_cmpfge (uint64_t a)
1.1 root 885: {
1.1.1.2 ! root 886: return !(a & 0x8000000000000000ULL) || !(a & 0x7FFFFFFFFFFFFFFFULL);
! 887: }
! 888:
1.1 root 889:
1.1.1.2 ! root 890: /* Floating point format conversion */
! 891: uint64_t helper_cvtts (uint64_t a)
! 892: {
! 893: float64 fa;
! 894: float32 fr;
! 895:
! 896: fa = t_to_float64(a);
! 897: fr = float64_to_float32(fa, &FP_STATUS);
! 898: return float32_to_s(fr);
1.1 root 899: }
900:
1.1.1.2 ! root 901: uint64_t helper_cvtst (uint64_t a)
1.1 root 902: {
1.1.1.2 ! root 903: float32 fa;
! 904: float64 fr;
1.1 root 905:
1.1.1.2 ! root 906: fa = s_to_float32(a);
! 907: fr = float32_to_float64(fa, &FP_STATUS);
! 908: return float64_to_t(fr);
1.1 root 909: }
910:
1.1.1.2 ! root 911: uint64_t helper_cvtqs (uint64_t a)
1.1 root 912: {
1.1.1.2 ! root 913: float32 fr = int64_to_float32(a, &FP_STATUS);
! 914: return float32_to_s(fr);
1.1 root 915: }
916:
1.1.1.2 ! root 917: uint64_t helper_cvttq (uint64_t a)
1.1 root 918: {
1.1.1.2 ! root 919: float64 fa = t_to_float64(a);
! 920: return float64_to_int64_round_to_zero(fa, &FP_STATUS);
1.1 root 921: }
922:
1.1.1.2 ! root 923: uint64_t helper_cvtqt (uint64_t a)
1.1 root 924: {
1.1.1.2 ! root 925: float64 fr = int64_to_float64(a, &FP_STATUS);
! 926: return float64_to_t(fr);
1.1 root 927: }
928:
1.1.1.2 ! root 929: uint64_t helper_cvtqf (uint64_t a)
1.1 root 930: {
1.1.1.2 ! root 931: float32 fr = int64_to_float32(a, &FP_STATUS);
! 932: return float32_to_f(fr);
1.1 root 933: }
934:
1.1.1.2 ! root 935: uint64_t helper_cvtgf (uint64_t a)
1.1 root 936: {
1.1.1.2 ! root 937: float64 fa;
! 938: float32 fr;
! 939:
! 940: fa = g_to_float64(a);
! 941: fr = float64_to_float32(fa, &FP_STATUS);
! 942: return float32_to_f(fr);
1.1 root 943: }
944:
1.1.1.2 ! root 945: uint64_t helper_cvtgq (uint64_t a)
1.1 root 946: {
1.1.1.2 ! root 947: float64 fa = g_to_float64(a);
! 948: return float64_to_int64_round_to_zero(fa, &FP_STATUS);
1.1 root 949: }
950:
1.1.1.2 ! root 951: uint64_t helper_cvtqg (uint64_t a)
1.1 root 952: {
1.1.1.2 ! root 953: float64 fr;
! 954: fr = int64_to_float64(a, &FP_STATUS);
! 955: return float64_to_g(fr);
1.1 root 956: }
957:
1.1.1.2 ! root 958: uint64_t helper_cvtlq (uint64_t a)
1.1 root 959: {
1.1.1.2 ! root 960: return (int64_t)((int32_t)((a >> 32) | ((a >> 29) & 0x3FFFFFFF)));
1.1 root 961: }
962:
1.1.1.2 ! root 963: static always_inline uint64_t __helper_cvtql (uint64_t a, int s, int v)
1.1 root 964: {
1.1.1.2 ! root 965: uint64_t r;
! 966:
! 967: r = ((uint64_t)(a & 0xC0000000)) << 32;
! 968: r |= ((uint64_t)(a & 0x7FFFFFFF)) << 29;
! 969:
! 970: if (v && (int64_t)((int32_t)r) != (int64_t)r) {
! 971: helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
! 972: }
! 973: if (s) {
! 974: /* TODO */
! 975: }
! 976: return r;
1.1 root 977: }
978:
1.1.1.2 ! root 979: uint64_t helper_cvtql (uint64_t a)
1.1 root 980: {
1.1.1.2 ! root 981: return __helper_cvtql(a, 0, 0);
1.1 root 982: }
983:
1.1.1.2 ! root 984: uint64_t helper_cvtqlv (uint64_t a)
1.1 root 985: {
1.1.1.2 ! root 986: return __helper_cvtql(a, 0, 1);
! 987: }
! 988:
! 989: uint64_t helper_cvtqlsv (uint64_t a)
! 990: {
! 991: return __helper_cvtql(a, 1, 1);
1.1 root 992: }
993:
1.1.1.2 ! root 994: /* PALcode support special instructions */
1.1 root 995: #if !defined (CONFIG_USER_ONLY)
1.1.1.2 ! root 996: void helper_hw_rei (void)
1.1 root 997: {
1.1.1.2 ! root 998: env->pc = env->ipr[IPR_EXC_ADDR] & ~3;
! 999: env->ipr[IPR_EXC_ADDR] = env->ipr[IPR_EXC_ADDR] & 1;
! 1000: /* XXX: re-enable interrupts and memory mapping */
! 1001: }
1.1 root 1002:
1.1.1.2 ! root 1003: void helper_hw_ret (uint64_t a)
! 1004: {
! 1005: env->pc = a & ~3;
! 1006: env->ipr[IPR_EXC_ADDR] = a & 1;
! 1007: /* XXX: re-enable interrupts and memory mapping */
1.1 root 1008: }
1009:
1.1.1.2 ! root 1010: uint64_t helper_mfpr (int iprn, uint64_t val)
1.1 root 1011: {
1.1.1.2 ! root 1012: uint64_t tmp;
! 1013:
! 1014: if (cpu_alpha_mfpr(env, iprn, &tmp) == 0)
! 1015: val = tmp;
! 1016:
! 1017: return val;
1.1 root 1018: }
1019:
1.1.1.2 ! root 1020: void helper_mtpr (int iprn, uint64_t val)
1.1 root 1021: {
1.1.1.2 ! root 1022: cpu_alpha_mtpr(env, iprn, val, NULL);
1.1 root 1023: }
1024:
1.1.1.2 ! root 1025: void helper_set_alt_mode (void)
1.1 root 1026: {
1.1.1.2 ! root 1027: env->saved_mode = env->ps & 0xC;
! 1028: env->ps = (env->ps & ~0xC) | (env->ipr[IPR_ALT_MODE] & 0xC);
1.1 root 1029: }
1030:
1.1.1.2 ! root 1031: void helper_restore_mode (void)
1.1 root 1032: {
1.1.1.2 ! root 1033: env->ps = (env->ps & ~0xC) | env->saved_mode;
1.1 root 1034: }
1.1.1.2 ! root 1035:
1.1 root 1036: #endif
1037:
1038: /*****************************************************************************/
1039: /* Softmmu support */
1040: #if !defined (CONFIG_USER_ONLY)
1041:
1042: /* XXX: the two following helpers are pure hacks.
1043: * Hopefully, we emulate the PALcode, then we should never see
1044: * HW_LD / HW_ST instructions.
1045: */
1.1.1.2 ! root 1046: uint64_t helper_ld_virt_to_phys (uint64_t virtaddr)
1.1 root 1047: {
1048: uint64_t tlb_addr, physaddr;
1049: int index, mmu_idx;
1050: void *retaddr;
1051:
1052: mmu_idx = cpu_mmu_index(env);
1.1.1.2 ! root 1053: index = (virtaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
1.1 root 1054: redo:
1055: tlb_addr = env->tlb_table[mmu_idx][index].addr_read;
1.1.1.2 ! root 1056: if ((virtaddr & TARGET_PAGE_MASK) ==
1.1 root 1057: (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
1.1.1.2 ! root 1058: physaddr = virtaddr + env->tlb_table[mmu_idx][index].addend;
1.1 root 1059: } else {
1060: /* the page is not in the TLB : fill it */
1061: retaddr = GETPC();
1.1.1.2 ! root 1062: tlb_fill(virtaddr, 0, mmu_idx, retaddr);
1.1 root 1063: goto redo;
1064: }
1.1.1.2 ! root 1065: return physaddr;
1.1 root 1066: }
1067:
1.1.1.2 ! root 1068: uint64_t helper_st_virt_to_phys (uint64_t virtaddr)
1.1 root 1069: {
1070: uint64_t tlb_addr, physaddr;
1071: int index, mmu_idx;
1072: void *retaddr;
1073:
1074: mmu_idx = cpu_mmu_index(env);
1.1.1.2 ! root 1075: index = (virtaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
1.1 root 1076: redo:
1077: tlb_addr = env->tlb_table[mmu_idx][index].addr_write;
1.1.1.2 ! root 1078: if ((virtaddr & TARGET_PAGE_MASK) ==
1.1 root 1079: (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
1.1.1.2 ! root 1080: physaddr = virtaddr + env->tlb_table[mmu_idx][index].addend;
1.1 root 1081: } else {
1082: /* the page is not in the TLB : fill it */
1083: retaddr = GETPC();
1.1.1.2 ! root 1084: tlb_fill(virtaddr, 1, mmu_idx, retaddr);
1.1 root 1085: goto redo;
1086: }
1.1.1.2 ! root 1087: return physaddr;
! 1088: }
! 1089:
! 1090: void helper_ldl_raw(uint64_t t0, uint64_t t1)
! 1091: {
! 1092: ldl_raw(t1, t0);
! 1093: }
! 1094:
! 1095: void helper_ldq_raw(uint64_t t0, uint64_t t1)
! 1096: {
! 1097: ldq_raw(t1, t0);
! 1098: }
! 1099:
! 1100: void helper_ldl_l_raw(uint64_t t0, uint64_t t1)
! 1101: {
! 1102: env->lock = t1;
! 1103: ldl_raw(t1, t0);
! 1104: }
! 1105:
! 1106: void helper_ldq_l_raw(uint64_t t0, uint64_t t1)
! 1107: {
! 1108: env->lock = t1;
! 1109: ldl_raw(t1, t0);
! 1110: }
! 1111:
! 1112: void helper_ldl_kernel(uint64_t t0, uint64_t t1)
! 1113: {
! 1114: ldl_kernel(t1, t0);
! 1115: }
! 1116:
! 1117: void helper_ldq_kernel(uint64_t t0, uint64_t t1)
! 1118: {
! 1119: ldq_kernel(t1, t0);
! 1120: }
! 1121:
! 1122: void helper_ldl_data(uint64_t t0, uint64_t t1)
! 1123: {
! 1124: ldl_data(t1, t0);
! 1125: }
! 1126:
! 1127: void helper_ldq_data(uint64_t t0, uint64_t t1)
! 1128: {
! 1129: ldq_data(t1, t0);
! 1130: }
! 1131:
! 1132: void helper_stl_raw(uint64_t t0, uint64_t t1)
! 1133: {
! 1134: stl_raw(t1, t0);
! 1135: }
! 1136:
! 1137: void helper_stq_raw(uint64_t t0, uint64_t t1)
! 1138: {
! 1139: stq_raw(t1, t0);
! 1140: }
! 1141:
! 1142: uint64_t helper_stl_c_raw(uint64_t t0, uint64_t t1)
! 1143: {
! 1144: uint64_t ret;
! 1145:
! 1146: if (t1 == env->lock) {
! 1147: stl_raw(t1, t0);
! 1148: ret = 0;
! 1149: } else
! 1150: ret = 1;
! 1151:
! 1152: env->lock = 1;
! 1153:
! 1154: return ret;
! 1155: }
! 1156:
! 1157: uint64_t helper_stq_c_raw(uint64_t t0, uint64_t t1)
! 1158: {
! 1159: uint64_t ret;
! 1160:
! 1161: if (t1 == env->lock) {
! 1162: stq_raw(t1, t0);
! 1163: ret = 0;
! 1164: } else
! 1165: ret = 1;
! 1166:
! 1167: env->lock = 1;
! 1168:
! 1169: return ret;
1.1 root 1170: }
1171:
1172: #define MMUSUFFIX _mmu
1173:
1174: #define SHIFT 0
1175: #include "softmmu_template.h"
1176:
1177: #define SHIFT 1
1178: #include "softmmu_template.h"
1179:
1180: #define SHIFT 2
1181: #include "softmmu_template.h"
1182:
1183: #define SHIFT 3
1184: #include "softmmu_template.h"
1185:
1186: /* try to fill the TLB and return an exception if error. If retaddr is
1187: NULL, it means that the function was called in C code (i.e. not
1188: from generated code or from helper.c) */
1189: /* XXX: fix it to restore all registers */
1190: void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
1191: {
1192: TranslationBlock *tb;
1193: CPUState *saved_env;
1194: unsigned long pc;
1195: int ret;
1196:
1197: /* XXX: hack to restore env in all cases, even if not called from
1198: generated code */
1199: saved_env = env;
1200: env = cpu_single_env;
1201: ret = cpu_alpha_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
1202: if (!likely(ret == 0)) {
1203: if (likely(retaddr)) {
1204: /* now we have a real cpu fault */
1205: pc = (unsigned long)retaddr;
1206: tb = tb_find_pc(pc);
1207: if (likely(tb)) {
1208: /* the PC is inside the translated code. It means that we have
1209: a virtual CPU fault */
1210: cpu_restore_state(tb, env, pc, NULL);
1211: }
1212: }
1213: /* Exception index and error code are already set */
1214: cpu_loop_exit();
1215: }
1216: env = saved_env;
1217: }
1218:
1219: #endif
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