| /* |
| * PowerPC integer and vector emulation helpers for QEMU. |
| * |
| * Copyright (c) 2003-2007 Jocelyn Mayer |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #include "cpu.h" |
| #include "qemu/host-utils.h" |
| #include "helper.h" |
| |
| #include "helper_regs.h" |
| /*****************************************************************************/ |
| /* Fixed point operations helpers */ |
| #if defined(TARGET_PPC64) |
| |
| uint64_t helper_mulldo(CPUPPCState *env, uint64_t arg1, uint64_t arg2) |
| { |
| int64_t th; |
| uint64_t tl; |
| |
| muls64(&tl, (uint64_t *)&th, arg1, arg2); |
| /* If th != 0 && th != -1, then we had an overflow */ |
| if (likely((uint64_t)(th + 1) <= 1)) { |
| env->ov = 0; |
| } else { |
| env->so = env->ov = 1; |
| } |
| return (int64_t)tl; |
| } |
| #endif |
| |
| target_ulong helper_divweu(CPUPPCState *env, target_ulong ra, target_ulong rb, |
| uint32_t oe) |
| { |
| uint64_t rt = 0; |
| int overflow = 0; |
| |
| uint64_t dividend = (uint64_t)ra << 32; |
| uint64_t divisor = (uint32_t)rb; |
| |
| if (unlikely(divisor == 0)) { |
| overflow = 1; |
| } else { |
| rt = dividend / divisor; |
| overflow = rt > UINT32_MAX; |
| } |
| |
| if (unlikely(overflow)) { |
| rt = 0; /* Undefined */ |
| } |
| |
| if (oe) { |
| if (unlikely(overflow)) { |
| env->so = env->ov = 1; |
| } else { |
| env->ov = 0; |
| } |
| } |
| |
| return (target_ulong)rt; |
| } |
| |
| #if defined(TARGET_PPC64) |
| |
| uint64_t helper_divdeu(CPUPPCState *env, uint64_t ra, uint64_t rb, uint32_t oe) |
| { |
| uint64_t rt = 0; |
| int overflow = 0; |
| |
| overflow = divu128(&rt, &ra, rb); |
| |
| if (unlikely(overflow)) { |
| rt = 0; /* Undefined */ |
| } |
| |
| if (oe) { |
| if (unlikely(overflow)) { |
| env->so = env->ov = 1; |
| } else { |
| env->ov = 0; |
| } |
| } |
| |
| return rt; |
| } |
| |
| uint64_t helper_divde(CPUPPCState *env, uint64_t rau, uint64_t rbu, uint32_t oe) |
| { |
| int64_t rt = 0; |
| int64_t ra = (int64_t)rau; |
| int64_t rb = (int64_t)rbu; |
| int overflow = divs128(&rt, &ra, rb); |
| |
| if (unlikely(overflow)) { |
| rt = 0; /* Undefined */ |
| } |
| |
| if (oe) { |
| |
| if (unlikely(overflow)) { |
| env->so = env->ov = 1; |
| } else { |
| env->ov = 0; |
| } |
| } |
| |
| return rt; |
| } |
| |
| #endif |
| |
| |
| target_ulong helper_cntlzw(target_ulong t) |
| { |
| return clz32(t); |
| } |
| |
| #if defined(TARGET_PPC64) |
| target_ulong helper_cntlzd(target_ulong t) |
| { |
| return clz64(t); |
| } |
| #endif |
| |
| #if defined(TARGET_PPC64) |
| |
| uint64_t helper_bpermd(uint64_t rs, uint64_t rb) |
| { |
| int i; |
| uint64_t ra = 0; |
| |
| for (i = 0; i < 8; i++) { |
| int index = (rs >> (i*8)) & 0xFF; |
| if (index < 64) { |
| if (rb & (1ull << (63-index))) { |
| ra |= 1 << i; |
| } |
| } |
| } |
| return ra; |
| } |
| |
| #endif |
| |
| target_ulong helper_cmpb(target_ulong rs, target_ulong rb) |
| { |
| target_ulong mask = 0xff; |
| target_ulong ra = 0; |
| int i; |
| |
| for (i = 0; i < sizeof(target_ulong); i++) { |
| if ((rs & mask) == (rb & mask)) { |
| ra |= mask; |
| } |
| mask <<= 8; |
| } |
| return ra; |
| } |
| |
| /* shift right arithmetic helper */ |
| target_ulong helper_sraw(CPUPPCState *env, target_ulong value, |
| target_ulong shift) |
| { |
| int32_t ret; |
| |
| if (likely(!(shift & 0x20))) { |
| if (likely((uint32_t)shift != 0)) { |
| shift &= 0x1f; |
| ret = (int32_t)value >> shift; |
| if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
| env->ca = 0; |
| } else { |
| env->ca = 1; |
| } |
| } else { |
| ret = (int32_t)value; |
| env->ca = 0; |
| } |
| } else { |
| ret = (int32_t)value >> 31; |
| env->ca = (ret != 0); |
| } |
| return (target_long)ret; |
| } |
| |
| #if defined(TARGET_PPC64) |
| target_ulong helper_srad(CPUPPCState *env, target_ulong value, |
| target_ulong shift) |
| { |
| int64_t ret; |
| |
| if (likely(!(shift & 0x40))) { |
| if (likely((uint64_t)shift != 0)) { |
| shift &= 0x3f; |
| ret = (int64_t)value >> shift; |
| if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
| env->ca = 0; |
| } else { |
| env->ca = 1; |
| } |
| } else { |
| ret = (int64_t)value; |
| env->ca = 0; |
| } |
| } else { |
| ret = (int64_t)value >> 63; |
| env->ca = (ret != 0); |
| } |
| return ret; |
| } |
| #endif |
| |
| #if defined(TARGET_PPC64) |
| target_ulong helper_popcntb(target_ulong val) |
| { |
| val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
| 0x5555555555555555ULL); |
| val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
| 0x3333333333333333ULL); |
| val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
| 0x0f0f0f0f0f0f0f0fULL); |
| return val; |
| } |
| |
| target_ulong helper_popcntw(target_ulong val) |
| { |
| val = (val & 0x5555555555555555ULL) + ((val >> 1) & |
| 0x5555555555555555ULL); |
| val = (val & 0x3333333333333333ULL) + ((val >> 2) & |
| 0x3333333333333333ULL); |
| val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & |
| 0x0f0f0f0f0f0f0f0fULL); |
| val = (val & 0x00ff00ff00ff00ffULL) + ((val >> 8) & |
| 0x00ff00ff00ff00ffULL); |
| val = (val & 0x0000ffff0000ffffULL) + ((val >> 16) & |
| 0x0000ffff0000ffffULL); |
| return val; |
| } |
| |
| target_ulong helper_popcntd(target_ulong val) |
| { |
| return ctpop64(val); |
| } |
| #else |
| target_ulong helper_popcntb(target_ulong val) |
| { |
| val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
| val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
| val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
| return val; |
| } |
| |
| target_ulong helper_popcntw(target_ulong val) |
| { |
| val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
| val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
| val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
| val = (val & 0x00ff00ff) + ((val >> 8) & 0x00ff00ff); |
| val = (val & 0x0000ffff) + ((val >> 16) & 0x0000ffff); |
| return val; |
| } |
| #endif |
| |
| /*****************************************************************************/ |
| /* PowerPC 601 specific instructions (POWER bridge) */ |
| target_ulong helper_div(CPUPPCState *env, target_ulong arg1, target_ulong arg2) |
| { |
| uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ]; |
| |
| if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| (int32_t)arg2 == 0) { |
| env->spr[SPR_MQ] = 0; |
| return INT32_MIN; |
| } else { |
| env->spr[SPR_MQ] = tmp % arg2; |
| return tmp / (int32_t)arg2; |
| } |
| } |
| |
| target_ulong helper_divo(CPUPPCState *env, target_ulong arg1, |
| target_ulong arg2) |
| { |
| uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ]; |
| |
| if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| (int32_t)arg2 == 0) { |
| env->so = env->ov = 1; |
| env->spr[SPR_MQ] = 0; |
| return INT32_MIN; |
| } else { |
| env->spr[SPR_MQ] = tmp % arg2; |
| tmp /= (int32_t)arg2; |
| if ((int32_t)tmp != tmp) { |
| env->so = env->ov = 1; |
| } else { |
| env->ov = 0; |
| } |
| return tmp; |
| } |
| } |
| |
| target_ulong helper_divs(CPUPPCState *env, target_ulong arg1, |
| target_ulong arg2) |
| { |
| if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| (int32_t)arg2 == 0) { |
| env->spr[SPR_MQ] = 0; |
| return INT32_MIN; |
| } else { |
| env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| return (int32_t)arg1 / (int32_t)arg2; |
| } |
| } |
| |
| target_ulong helper_divso(CPUPPCState *env, target_ulong arg1, |
| target_ulong arg2) |
| { |
| if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
| (int32_t)arg2 == 0) { |
| env->so = env->ov = 1; |
| env->spr[SPR_MQ] = 0; |
| return INT32_MIN; |
| } else { |
| env->ov = 0; |
| env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
| return (int32_t)arg1 / (int32_t)arg2; |
| } |
| } |
| |
| /*****************************************************************************/ |
| /* 602 specific instructions */ |
| /* mfrom is the most crazy instruction ever seen, imho ! */ |
| /* Real implementation uses a ROM table. Do the same */ |
| /* Extremely decomposed: |
| * -arg / 256 |
| * return 256 * log10(10 + 1.0) + 0.5 |
| */ |
| #if !defined(CONFIG_USER_ONLY) |
| target_ulong helper_602_mfrom(target_ulong arg) |
| { |
| if (likely(arg < 602)) { |
| #include "mfrom_table.c" |
| return mfrom_ROM_table[arg]; |
| } else { |
| return 0; |
| } |
| } |
| #endif |
| |
| /*****************************************************************************/ |
| /* Altivec extension helpers */ |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define HI_IDX 0 |
| #define LO_IDX 1 |
| #else |
| #define HI_IDX 1 |
| #define LO_IDX 0 |
| #endif |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define VECTOR_FOR_INORDER_I(index, element) \ |
| for (index = 0; index < ARRAY_SIZE(r->element); index++) |
| #else |
| #define VECTOR_FOR_INORDER_I(index, element) \ |
| for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--) |
| #endif |
| |
| /* Saturating arithmetic helpers. */ |
| #define SATCVT(from, to, from_type, to_type, min, max) \ |
| static inline to_type cvt##from##to(from_type x, int *sat) \ |
| { \ |
| to_type r; \ |
| \ |
| if (x < (from_type)min) { \ |
| r = min; \ |
| *sat = 1; \ |
| } else if (x > (from_type)max) { \ |
| r = max; \ |
| *sat = 1; \ |
| } else { \ |
| r = x; \ |
| } \ |
| return r; \ |
| } |
| #define SATCVTU(from, to, from_type, to_type, min, max) \ |
| static inline to_type cvt##from##to(from_type x, int *sat) \ |
| { \ |
| to_type r; \ |
| \ |
| if (x > (from_type)max) { \ |
| r = max; \ |
| *sat = 1; \ |
| } else { \ |
| r = x; \ |
| } \ |
| return r; \ |
| } |
| SATCVT(sh, sb, int16_t, int8_t, INT8_MIN, INT8_MAX) |
| SATCVT(sw, sh, int32_t, int16_t, INT16_MIN, INT16_MAX) |
| SATCVT(sd, sw, int64_t, int32_t, INT32_MIN, INT32_MAX) |
| |
| SATCVTU(uh, ub, uint16_t, uint8_t, 0, UINT8_MAX) |
| SATCVTU(uw, uh, uint32_t, uint16_t, 0, UINT16_MAX) |
| SATCVTU(ud, uw, uint64_t, uint32_t, 0, UINT32_MAX) |
| SATCVT(sh, ub, int16_t, uint8_t, 0, UINT8_MAX) |
| SATCVT(sw, uh, int32_t, uint16_t, 0, UINT16_MAX) |
| SATCVT(sd, uw, int64_t, uint32_t, 0, UINT32_MAX) |
| #undef SATCVT |
| #undef SATCVTU |
| |
| void helper_lvsl(ppc_avr_t *r, target_ulong sh) |
| { |
| int i, j = (sh & 0xf); |
| |
| VECTOR_FOR_INORDER_I(i, u8) { |
| r->u8[i] = j++; |
| } |
| } |
| |
| void helper_lvsr(ppc_avr_t *r, target_ulong sh) |
| { |
| int i, j = 0x10 - (sh & 0xf); |
| |
| VECTOR_FOR_INORDER_I(i, u8) { |
| r->u8[i] = j++; |
| } |
| } |
| |
| void helper_mtvscr(CPUPPCState *env, ppc_avr_t *r) |
| { |
| #if defined(HOST_WORDS_BIGENDIAN) |
| env->vscr = r->u32[3]; |
| #else |
| env->vscr = r->u32[0]; |
| #endif |
| set_flush_to_zero(vscr_nj, &env->vec_status); |
| } |
| |
| void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| r->u32[i] = ~a->u32[i] < b->u32[i]; |
| } |
| } |
| |
| #define VARITH_DO(name, op, element) \ |
| void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| r->element[i] = a->element[i] op b->element[i]; \ |
| } \ |
| } |
| #define VARITH(suffix, element) \ |
| VARITH_DO(add##suffix, +, element) \ |
| VARITH_DO(sub##suffix, -, element) |
| VARITH(ubm, u8) |
| VARITH(uhm, u16) |
| VARITH(uwm, u32) |
| #undef VARITH_DO |
| #undef VARITH |
| |
| #define VARITHFP(suffix, func) \ |
| void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \ |
| } \ |
| } |
| VARITHFP(addfp, float32_add) |
| VARITHFP(subfp, float32_sub) |
| VARITHFP(minfp, float32_min) |
| VARITHFP(maxfp, float32_max) |
| #undef VARITHFP |
| |
| #define VARITHFPFMA(suffix, type) \ |
| void helper_v##suffix(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| ppc_avr_t *b, ppc_avr_t *c) \ |
| { \ |
| int i; \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| r->f[i] = float32_muladd(a->f[i], c->f[i], b->f[i], \ |
| type, &env->vec_status); \ |
| } \ |
| } |
| VARITHFPFMA(maddfp, 0); |
| VARITHFPFMA(nmsubfp, float_muladd_negate_result | float_muladd_negate_c); |
| #undef VARITHFPFMA |
| |
| #define VARITHSAT_CASE(type, op, cvt, element) \ |
| { \ |
| type result = (type)a->element[i] op (type)b->element[i]; \ |
| r->element[i] = cvt(result, &sat); \ |
| } |
| |
| #define VARITHSAT_DO(name, op, optype, cvt, element) \ |
| void helper_v##name(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \ |
| ppc_avr_t *b) \ |
| { \ |
| int sat = 0; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| switch (sizeof(r->element[0])) { \ |
| case 1: \ |
| VARITHSAT_CASE(optype, op, cvt, element); \ |
| break; \ |
| case 2: \ |
| VARITHSAT_CASE(optype, op, cvt, element); \ |
| break; \ |
| case 4: \ |
| VARITHSAT_CASE(optype, op, cvt, element); \ |
| break; \ |
| } \ |
| } \ |
| if (sat) { \ |
| env->vscr |= (1 << VSCR_SAT); \ |
| } \ |
| } |
| #define VARITHSAT_SIGNED(suffix, element, optype, cvt) \ |
| VARITHSAT_DO(adds##suffix##s, +, optype, cvt, element) \ |
| VARITHSAT_DO(subs##suffix##s, -, optype, cvt, element) |
| #define VARITHSAT_UNSIGNED(suffix, element, optype, cvt) \ |
| VARITHSAT_DO(addu##suffix##s, +, optype, cvt, element) \ |
| VARITHSAT_DO(subu##suffix##s, -, optype, cvt, element) |
| VARITHSAT_SIGNED(b, s8, int16_t, cvtshsb) |
| VARITHSAT_SIGNED(h, s16, int32_t, cvtswsh) |
| VARITHSAT_SIGNED(w, s32, int64_t, cvtsdsw) |
| VARITHSAT_UNSIGNED(b, u8, uint16_t, cvtshub) |
| VARITHSAT_UNSIGNED(h, u16, uint32_t, cvtswuh) |
| VARITHSAT_UNSIGNED(w, u32, uint64_t, cvtsduw) |
| #undef VARITHSAT_CASE |
| #undef VARITHSAT_DO |
| #undef VARITHSAT_SIGNED |
| #undef VARITHSAT_UNSIGNED |
| |
| #define VAVG_DO(name, element, etype) \ |
| void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \ |
| r->element[i] = x >> 1; \ |
| } \ |
| } |
| |
| #define VAVG(type, signed_element, signed_type, unsigned_element, \ |
| unsigned_type) \ |
| VAVG_DO(avgs##type, signed_element, signed_type) \ |
| VAVG_DO(avgu##type, unsigned_element, unsigned_type) |
| VAVG(b, s8, int16_t, u8, uint16_t) |
| VAVG(h, s16, int32_t, u16, uint32_t) |
| VAVG(w, s32, int64_t, u32, uint64_t) |
| #undef VAVG_DO |
| #undef VAVG |
| |
| #define VCF(suffix, cvt, element) \ |
| void helper_vcf##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *b, uint32_t uim) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| float32 t = cvt(b->element[i], &env->vec_status); \ |
| r->f[i] = float32_scalbn(t, -uim, &env->vec_status); \ |
| } \ |
| } |
| VCF(ux, uint32_to_float32, u32) |
| VCF(sx, int32_to_float32, s32) |
| #undef VCF |
| |
| #define VCMP_DO(suffix, compare, element, record) \ |
| void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| uint32_t ones = (uint32_t)-1; \ |
| uint32_t all = ones; \ |
| uint32_t none = 0; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| uint32_t result = (a->element[i] compare b->element[i] ? \ |
| ones : 0x0); \ |
| switch (sizeof(a->element[0])) { \ |
| case 4: \ |
| r->u32[i] = result; \ |
| break; \ |
| case 2: \ |
| r->u16[i] = result; \ |
| break; \ |
| case 1: \ |
| r->u8[i] = result; \ |
| break; \ |
| } \ |
| all &= result; \ |
| none |= result; \ |
| } \ |
| if (record) { \ |
| env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| } \ |
| } |
| #define VCMP(suffix, compare, element) \ |
| VCMP_DO(suffix, compare, element, 0) \ |
| VCMP_DO(suffix##_dot, compare, element, 1) |
| VCMP(equb, ==, u8) |
| VCMP(equh, ==, u16) |
| VCMP(equw, ==, u32) |
| VCMP(gtub, >, u8) |
| VCMP(gtuh, >, u16) |
| VCMP(gtuw, >, u32) |
| VCMP(gtsb, >, s8) |
| VCMP(gtsh, >, s16) |
| VCMP(gtsw, >, s32) |
| #undef VCMP_DO |
| #undef VCMP |
| |
| #define VCMPFP_DO(suffix, compare, order, record) \ |
| void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| uint32_t ones = (uint32_t)-1; \ |
| uint32_t all = ones; \ |
| uint32_t none = 0; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| uint32_t result; \ |
| int rel = float32_compare_quiet(a->f[i], b->f[i], \ |
| &env->vec_status); \ |
| if (rel == float_relation_unordered) { \ |
| result = 0; \ |
| } else if (rel compare order) { \ |
| result = ones; \ |
| } else { \ |
| result = 0; \ |
| } \ |
| r->u32[i] = result; \ |
| all &= result; \ |
| none |= result; \ |
| } \ |
| if (record) { \ |
| env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \ |
| } \ |
| } |
| #define VCMPFP(suffix, compare, order) \ |
| VCMPFP_DO(suffix, compare, order, 0) \ |
| VCMPFP_DO(suffix##_dot, compare, order, 1) |
| VCMPFP(eqfp, ==, float_relation_equal) |
| VCMPFP(gefp, !=, float_relation_less) |
| VCMPFP(gtfp, ==, float_relation_greater) |
| #undef VCMPFP_DO |
| #undef VCMPFP |
| |
| static inline void vcmpbfp_internal(CPUPPCState *env, ppc_avr_t *r, |
| ppc_avr_t *a, ppc_avr_t *b, int record) |
| { |
| int i; |
| int all_in = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status); |
| if (le_rel == float_relation_unordered) { |
| r->u32[i] = 0xc0000000; |
| /* ALL_IN does not need to be updated here. */ |
| } else { |
| float32 bneg = float32_chs(b->f[i]); |
| int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status); |
| int le = le_rel != float_relation_greater; |
| int ge = ge_rel != float_relation_less; |
| |
| r->u32[i] = ((!le) << 31) | ((!ge) << 30); |
| all_in |= (!le | !ge); |
| } |
| } |
| if (record) { |
| env->crf[6] = (all_in == 0) << 1; |
| } |
| } |
| |
| void helper_vcmpbfp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| vcmpbfp_internal(env, r, a, b, 0); |
| } |
| |
| void helper_vcmpbfp_dot(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b) |
| { |
| vcmpbfp_internal(env, r, a, b, 1); |
| } |
| |
| #define VCT(suffix, satcvt, element) \ |
| void helper_vct##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *b, uint32_t uim) \ |
| { \ |
| int i; \ |
| int sat = 0; \ |
| float_status s = env->vec_status; \ |
| \ |
| set_float_rounding_mode(float_round_to_zero, &s); \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| if (float32_is_any_nan(b->f[i])) { \ |
| r->element[i] = 0; \ |
| } else { \ |
| float64 t = float32_to_float64(b->f[i], &s); \ |
| int64_t j; \ |
| \ |
| t = float64_scalbn(t, uim, &s); \ |
| j = float64_to_int64(t, &s); \ |
| r->element[i] = satcvt(j, &sat); \ |
| } \ |
| } \ |
| if (sat) { \ |
| env->vscr |= (1 << VSCR_SAT); \ |
| } \ |
| } |
| VCT(uxs, cvtsduw, u32) |
| VCT(sxs, cvtsdsw, s32) |
| #undef VCT |
| |
| void helper_vmhaddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int sat = 0; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| int32_t prod = a->s16[i] * b->s16[i]; |
| int32_t t = (int32_t)c->s16[i] + (prod >> 15); |
| |
| r->s16[i] = cvtswsh(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vmhraddshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int sat = 0; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| int32_t prod = a->s16[i] * b->s16[i] + 0x00004000; |
| int32_t t = (int32_t)c->s16[i] + (prod >> 15); |
| r->s16[i] = cvtswsh(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| #define VMINMAX_DO(name, compare, element) \ |
| void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| if (a->element[i] compare b->element[i]) { \ |
| r->element[i] = b->element[i]; \ |
| } else { \ |
| r->element[i] = a->element[i]; \ |
| } \ |
| } \ |
| } |
| #define VMINMAX(suffix, element) \ |
| VMINMAX_DO(min##suffix, >, element) \ |
| VMINMAX_DO(max##suffix, <, element) |
| VMINMAX(sb, s8) |
| VMINMAX(sh, s16) |
| VMINMAX(sw, s32) |
| VMINMAX(ub, u8) |
| VMINMAX(uh, u16) |
| VMINMAX(uw, u32) |
| #undef VMINMAX_DO |
| #undef VMINMAX |
| |
| void helper_vmladduhm(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| int32_t prod = a->s16[i] * b->s16[i]; |
| r->s16[i] = (int16_t) (prod + c->s16[i]); |
| } |
| } |
| |
| #define VMRG_DO(name, element, highp) \ |
| void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| ppc_avr_t result; \ |
| int i; \ |
| size_t n_elems = ARRAY_SIZE(r->element); \ |
| \ |
| for (i = 0; i < n_elems / 2; i++) { \ |
| if (highp) { \ |
| result.element[i*2+HI_IDX] = a->element[i]; \ |
| result.element[i*2+LO_IDX] = b->element[i]; \ |
| } else { \ |
| result.element[n_elems - i * 2 - (1 + HI_IDX)] = \ |
| b->element[n_elems - i - 1]; \ |
| result.element[n_elems - i * 2 - (1 + LO_IDX)] = \ |
| a->element[n_elems - i - 1]; \ |
| } \ |
| } \ |
| *r = result; \ |
| } |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define MRGHI 0 |
| #define MRGLO 1 |
| #else |
| #define MRGHI 1 |
| #define MRGLO 0 |
| #endif |
| #define VMRG(suffix, element) \ |
| VMRG_DO(mrgl##suffix, element, MRGHI) \ |
| VMRG_DO(mrgh##suffix, element, MRGLO) |
| VMRG(b, u8) |
| VMRG(h, u16) |
| VMRG(w, u32) |
| #undef VMRG_DO |
| #undef VMRG |
| #undef MRGHI |
| #undef MRGLO |
| |
| void helper_vmsummbm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int32_t prod[16]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s8); i++) { |
| prod[i] = (int32_t)a->s8[i] * b->u8[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, s32) { |
| r->s32[i] = c->s32[i] + prod[4 * i] + prod[4 * i + 1] + |
| prod[4 * i + 2] + prod[4 * i + 3]; |
| } |
| } |
| |
| void helper_vmsumshm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int32_t prod[8]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| prod[i] = a->s16[i] * b->s16[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, s32) { |
| r->s32[i] = c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| } |
| } |
| |
| void helper_vmsumshs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| int32_t prod[8]; |
| int i; |
| int sat = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s16); i++) { |
| prod[i] = (int32_t)a->s16[i] * b->s16[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, s32) { |
| int64_t t = (int64_t)c->s32[i] + prod[2 * i] + prod[2 * i + 1]; |
| |
| r->u32[i] = cvtsdsw(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vmsumubm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| uint16_t prod[16]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| prod[i] = a->u8[i] * b->u8[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, u32) { |
| r->u32[i] = c->u32[i] + prod[4 * i] + prod[4 * i + 1] + |
| prod[4 * i + 2] + prod[4 * i + 3]; |
| } |
| } |
| |
| void helper_vmsumuhm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| uint32_t prod[8]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| prod[i] = a->u16[i] * b->u16[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, u32) { |
| r->u32[i] = c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| } |
| } |
| |
| void helper_vmsumuhs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, |
| ppc_avr_t *b, ppc_avr_t *c) |
| { |
| uint32_t prod[8]; |
| int i; |
| int sat = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u16); i++) { |
| prod[i] = a->u16[i] * b->u16[i]; |
| } |
| |
| VECTOR_FOR_INORDER_I(i, s32) { |
| uint64_t t = (uint64_t)c->u32[i] + prod[2 * i] + prod[2 * i + 1]; |
| |
| r->u32[i] = cvtuduw(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| #define VMUL_DO(name, mul_element, prod_element, evenp) \ |
| void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| VECTOR_FOR_INORDER_I(i, prod_element) { \ |
| if (evenp) { \ |
| r->prod_element[i] = a->mul_element[i * 2 + HI_IDX] * \ |
| b->mul_element[i * 2 + HI_IDX]; \ |
| } else { \ |
| r->prod_element[i] = a->mul_element[i * 2 + LO_IDX] * \ |
| b->mul_element[i * 2 + LO_IDX]; \ |
| } \ |
| } \ |
| } |
| #define VMUL(suffix, mul_element, prod_element) \ |
| VMUL_DO(mule##suffix, mul_element, prod_element, 1) \ |
| VMUL_DO(mulo##suffix, mul_element, prod_element, 0) |
| VMUL(sb, s8, s16) |
| VMUL(sh, s16, s32) |
| VMUL(ub, u8, u16) |
| VMUL(uh, u16, u32) |
| #undef VMUL_DO |
| #undef VMUL |
| |
| void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, |
| ppc_avr_t *c) |
| { |
| ppc_avr_t result; |
| int i; |
| |
| VECTOR_FOR_INORDER_I(i, u8) { |
| int s = c->u8[i] & 0x1f; |
| #if defined(HOST_WORDS_BIGENDIAN) |
| int index = s & 0xf; |
| #else |
| int index = 15 - (s & 0xf); |
| #endif |
| |
| if (s & 0x10) { |
| result.u8[i] = b->u8[index]; |
| } else { |
| result.u8[i] = a->u8[index]; |
| } |
| } |
| *r = result; |
| } |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define PKBIG 1 |
| #else |
| #define PKBIG 0 |
| #endif |
| void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i, j; |
| ppc_avr_t result; |
| #if defined(HOST_WORDS_BIGENDIAN) |
| const ppc_avr_t *x[2] = { a, b }; |
| #else |
| const ppc_avr_t *x[2] = { b, a }; |
| #endif |
| |
| VECTOR_FOR_INORDER_I(i, u64) { |
| VECTOR_FOR_INORDER_I(j, u32) { |
| uint32_t e = x[i]->u32[j]; |
| |
| result.u16[4*i+j] = (((e >> 9) & 0xfc00) | |
| ((e >> 6) & 0x3e0) | |
| ((e >> 3) & 0x1f)); |
| } |
| } |
| *r = result; |
| } |
| |
| #define VPK(suffix, from, to, cvt, dosat) \ |
| void helper_vpk##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| int sat = 0; \ |
| ppc_avr_t result; \ |
| ppc_avr_t *a0 = PKBIG ? a : b; \ |
| ppc_avr_t *a1 = PKBIG ? b : a; \ |
| \ |
| VECTOR_FOR_INORDER_I(i, from) { \ |
| result.to[i] = cvt(a0->from[i], &sat); \ |
| result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \ |
| } \ |
| *r = result; \ |
| if (dosat && sat) { \ |
| env->vscr |= (1 << VSCR_SAT); \ |
| } \ |
| } |
| #define I(x, y) (x) |
| VPK(shss, s16, s8, cvtshsb, 1) |
| VPK(shus, s16, u8, cvtshub, 1) |
| VPK(swss, s32, s16, cvtswsh, 1) |
| VPK(swus, s32, u16, cvtswuh, 1) |
| VPK(uhus, u16, u8, cvtuhub, 1) |
| VPK(uwus, u32, u16, cvtuwuh, 1) |
| VPK(uhum, u16, u8, I, 0) |
| VPK(uwum, u32, u16, I, 0) |
| #undef I |
| #undef VPK |
| #undef PKBIG |
| |
| void helper_vrefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| r->f[i] = float32_div(float32_one, b->f[i], &env->vec_status); |
| } |
| } |
| |
| #define VRFI(suffix, rounding) \ |
| void helper_vrfi##suffix(CPUPPCState *env, ppc_avr_t *r, \ |
| ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| float_status s = env->vec_status; \ |
| \ |
| set_float_rounding_mode(rounding, &s); \ |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { \ |
| r->f[i] = float32_round_to_int (b->f[i], &s); \ |
| } \ |
| } |
| VRFI(n, float_round_nearest_even) |
| VRFI(m, float_round_down) |
| VRFI(p, float_round_up) |
| VRFI(z, float_round_to_zero) |
| #undef VRFI |
| |
| #define VROTATE(suffix, element) \ |
| void helper_vrl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| unsigned int mask = ((1 << \ |
| (3 + (sizeof(a->element[0]) >> 1))) \ |
| - 1); \ |
| unsigned int shift = b->element[i] & mask; \ |
| r->element[i] = (a->element[i] << shift) | \ |
| (a->element[i] >> (sizeof(a->element[0]) * 8 - shift)); \ |
| } \ |
| } |
| VROTATE(b, u8) |
| VROTATE(h, u16) |
| VROTATE(w, u32) |
| #undef VROTATE |
| |
| void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| float32 t = float32_sqrt(b->f[i], &env->vec_status); |
| |
| r->f[i] = float32_div(float32_one, t, &env->vec_status); |
| } |
| } |
| |
| void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, |
| ppc_avr_t *c) |
| { |
| r->u64[0] = (a->u64[0] & ~c->u64[0]) | (b->u64[0] & c->u64[0]); |
| r->u64[1] = (a->u64[1] & ~c->u64[1]) | (b->u64[1] & c->u64[1]); |
| } |
| |
| void helper_vexptefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| r->f[i] = float32_exp2(b->f[i], &env->vec_status); |
| } |
| } |
| |
| void helper_vlogefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->f); i++) { |
| r->f[i] = float32_log2(b->f[i], &env->vec_status); |
| } |
| } |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define LEFT 0 |
| #define RIGHT 1 |
| #else |
| #define LEFT 1 |
| #define RIGHT 0 |
| #endif |
| /* The specification says that the results are undefined if all of the |
| * shift counts are not identical. We check to make sure that they are |
| * to conform to what real hardware appears to do. */ |
| #define VSHIFT(suffix, leftp) \ |
| void helper_vs##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int shift = b->u8[LO_IDX*15] & 0x7; \ |
| int doit = 1; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->u8); i++) { \ |
| doit = doit && ((b->u8[i] & 0x7) == shift); \ |
| } \ |
| if (doit) { \ |
| if (shift == 0) { \ |
| *r = *a; \ |
| } else if (leftp) { \ |
| uint64_t carry = a->u64[LO_IDX] >> (64 - shift); \ |
| \ |
| r->u64[HI_IDX] = (a->u64[HI_IDX] << shift) | carry; \ |
| r->u64[LO_IDX] = a->u64[LO_IDX] << shift; \ |
| } else { \ |
| uint64_t carry = a->u64[HI_IDX] << (64 - shift); \ |
| \ |
| r->u64[LO_IDX] = (a->u64[LO_IDX] >> shift) | carry; \ |
| r->u64[HI_IDX] = a->u64[HI_IDX] >> shift; \ |
| } \ |
| } \ |
| } |
| VSHIFT(l, LEFT) |
| VSHIFT(r, RIGHT) |
| #undef VSHIFT |
| #undef LEFT |
| #undef RIGHT |
| |
| #define VSL(suffix, element) \ |
| void helper_vsl##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| unsigned int mask = ((1 << \ |
| (3 + (sizeof(a->element[0]) >> 1))) \ |
| - 1); \ |
| unsigned int shift = b->element[i] & mask; \ |
| \ |
| r->element[i] = a->element[i] << shift; \ |
| } \ |
| } |
| VSL(b, u8) |
| VSL(h, u16) |
| VSL(w, u32) |
| #undef VSL |
| |
| void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift) |
| { |
| int sh = shift & 0xf; |
| int i; |
| ppc_avr_t result; |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| int index = sh + i; |
| if (index > 0xf) { |
| result.u8[i] = b->u8[index - 0x10]; |
| } else { |
| result.u8[i] = a->u8[index]; |
| } |
| } |
| #else |
| for (i = 0; i < ARRAY_SIZE(r->u8); i++) { |
| int index = (16 - sh) + i; |
| if (index > 0xf) { |
| result.u8[i] = a->u8[index - 0x10]; |
| } else { |
| result.u8[i] = b->u8[index]; |
| } |
| } |
| #endif |
| *r = result; |
| } |
| |
| void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf; |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| memset(&r->u8[16-sh], 0, sh); |
| #else |
| memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| memset(&r->u8[0], 0, sh); |
| #endif |
| } |
| |
| /* Experimental testing shows that hardware masks the immediate. */ |
| #define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1)) |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define SPLAT_ELEMENT(element) _SPLAT_MASKED(element) |
| #else |
| #define SPLAT_ELEMENT(element) \ |
| (ARRAY_SIZE(r->element) - 1 - _SPLAT_MASKED(element)) |
| #endif |
| #define VSPLT(suffix, element) \ |
| void helper_vsplt##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \ |
| { \ |
| uint32_t s = b->element[SPLAT_ELEMENT(element)]; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| r->element[i] = s; \ |
| } \ |
| } |
| VSPLT(b, u8) |
| VSPLT(h, u16) |
| VSPLT(w, u32) |
| #undef VSPLT |
| #undef SPLAT_ELEMENT |
| #undef _SPLAT_MASKED |
| |
| #define VSPLTI(suffix, element, splat_type) \ |
| void helper_vspltis##suffix(ppc_avr_t *r, uint32_t splat) \ |
| { \ |
| splat_type x = (int8_t)(splat << 3) >> 3; \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| r->element[i] = x; \ |
| } \ |
| } |
| VSPLTI(b, s8, int8_t) |
| VSPLTI(h, s16, int16_t) |
| VSPLTI(w, s32, int32_t) |
| #undef VSPLTI |
| |
| #define VSR(suffix, element) \ |
| void helper_vsr##suffix(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ |
| unsigned int mask = ((1 << \ |
| (3 + (sizeof(a->element[0]) >> 1))) \ |
| - 1); \ |
| unsigned int shift = b->element[i] & mask; \ |
| \ |
| r->element[i] = a->element[i] >> shift; \ |
| } \ |
| } |
| VSR(ab, s8) |
| VSR(ah, s16) |
| VSR(aw, s32) |
| VSR(b, u8) |
| VSR(h, u16) |
| VSR(w, u32) |
| #undef VSR |
| |
| void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int sh = (b->u8[LO_IDX * 0xf] >> 3) & 0xf; |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| memmove(&r->u8[sh], &a->u8[0], 16 - sh); |
| memset(&r->u8[0], 0, sh); |
| #else |
| memmove(&r->u8[0], &a->u8[sh], 16 - sh); |
| memset(&r->u8[16 - sh], 0, sh); |
| #endif |
| } |
| |
| void helper_vsubcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| r->u32[i] = a->u32[i] >= b->u32[i]; |
| } |
| } |
| |
| void helper_vsumsws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int64_t t; |
| int i, upper; |
| ppc_avr_t result; |
| int sat = 0; |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| upper = ARRAY_SIZE(r->s32)-1; |
| #else |
| upper = 0; |
| #endif |
| t = (int64_t)b->s32[upper]; |
| for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| t += a->s32[i]; |
| result.s32[i] = 0; |
| } |
| result.s32[upper] = cvtsdsw(t, &sat); |
| *r = result; |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vsum2sws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i, j, upper; |
| ppc_avr_t result; |
| int sat = 0; |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| upper = 1; |
| #else |
| upper = 0; |
| #endif |
| for (i = 0; i < ARRAY_SIZE(r->u64); i++) { |
| int64_t t = (int64_t)b->s32[upper + i * 2]; |
| |
| result.u64[i] = 0; |
| for (j = 0; j < ARRAY_SIZE(r->u64); j++) { |
| t += a->s32[2 * i + j]; |
| } |
| result.s32[upper + i * 2] = cvtsdsw(t, &sat); |
| } |
| |
| *r = result; |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vsum4sbs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i, j; |
| int sat = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| int64_t t = (int64_t)b->s32[i]; |
| |
| for (j = 0; j < ARRAY_SIZE(r->s32); j++) { |
| t += a->s8[4 * i + j]; |
| } |
| r->s32[i] = cvtsdsw(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vsum4shs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int sat = 0; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(r->s32); i++) { |
| int64_t t = (int64_t)b->s32[i]; |
| |
| t += a->s16[2 * i] + a->s16[2 * i + 1]; |
| r->s32[i] = cvtsdsw(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) |
| { |
| int i, j; |
| int sat = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(r->u32); i++) { |
| uint64_t t = (uint64_t)b->u32[i]; |
| |
| for (j = 0; j < ARRAY_SIZE(r->u32); j++) { |
| t += a->u8[4 * i + j]; |
| } |
| r->u32[i] = cvtuduw(t, &sat); |
| } |
| |
| if (sat) { |
| env->vscr |= (1 << VSCR_SAT); |
| } |
| } |
| |
| #if defined(HOST_WORDS_BIGENDIAN) |
| #define UPKHI 1 |
| #define UPKLO 0 |
| #else |
| #define UPKHI 0 |
| #define UPKLO 1 |
| #endif |
| #define VUPKPX(suffix, hi) \ |
| void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| ppc_avr_t result; \ |
| \ |
| for (i = 0; i < ARRAY_SIZE(r->u32); i++) { \ |
| uint16_t e = b->u16[hi ? i : i+4]; \ |
| uint8_t a = (e >> 15) ? 0xff : 0; \ |
| uint8_t r = (e >> 10) & 0x1f; \ |
| uint8_t g = (e >> 5) & 0x1f; \ |
| uint8_t b = e & 0x1f; \ |
| \ |
| result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b; \ |
| } \ |
| *r = result; \ |
| } |
| VUPKPX(lpx, UPKLO) |
| VUPKPX(hpx, UPKHI) |
| #undef VUPKPX |
| |
| #define VUPK(suffix, unpacked, packee, hi) \ |
| void helper_vupk##suffix(ppc_avr_t *r, ppc_avr_t *b) \ |
| { \ |
| int i; \ |
| ppc_avr_t result; \ |
| \ |
| if (hi) { \ |
| for (i = 0; i < ARRAY_SIZE(r->unpacked); i++) { \ |
| result.unpacked[i] = b->packee[i]; \ |
| } \ |
| } else { \ |
| for (i = ARRAY_SIZE(r->unpacked); i < ARRAY_SIZE(r->packee); \ |
| i++) { \ |
| result.unpacked[i - ARRAY_SIZE(r->unpacked)] = b->packee[i]; \ |
| } \ |
| } \ |
| *r = result; \ |
| } |
| VUPK(hsb, s16, s8, UPKHI) |
| VUPK(hsh, s32, s16, UPKHI) |
| VUPK(lsb, s16, s8, UPKLO) |
| VUPK(lsh, s32, s16, UPKLO) |
| #undef VUPK |
| #undef UPKHI |
| #undef UPKLO |
| |
| #undef VECTOR_FOR_INORDER_I |
| #undef HI_IDX |
| #undef LO_IDX |
| |
| /*****************************************************************************/ |
| /* SPE extension helpers */ |
| /* Use a table to make this quicker */ |
| static const uint8_t hbrev[16] = { |
| 0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
| 0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
| }; |
| |
| static inline uint8_t byte_reverse(uint8_t val) |
| { |
| return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
| } |
| |
| static inline uint32_t word_reverse(uint32_t val) |
| { |
| return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
| (byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
| } |
| |
| #define MASKBITS 16 /* Random value - to be fixed (implementation dependent) */ |
| target_ulong helper_brinc(target_ulong arg1, target_ulong arg2) |
| { |
| uint32_t a, b, d, mask; |
| |
| mask = UINT32_MAX >> (32 - MASKBITS); |
| a = arg1 & mask; |
| b = arg2 & mask; |
| d = word_reverse(1 + word_reverse(a | ~b)); |
| return (arg1 & ~mask) | (d & b); |
| } |
| |
| uint32_t helper_cntlsw32(uint32_t val) |
| { |
| if (val & 0x80000000) { |
| return clz32(~val); |
| } else { |
| return clz32(val); |
| } |
| } |
| |
| uint32_t helper_cntlzw32(uint32_t val) |
| { |
| return clz32(val); |
| } |
| |
| /* 440 specific */ |
| target_ulong helper_dlmzb(CPUPPCState *env, target_ulong high, |
| target_ulong low, uint32_t update_Rc) |
| { |
| target_ulong mask; |
| int i; |
| |
| i = 1; |
| for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| if ((high & mask) == 0) { |
| if (update_Rc) { |
| env->crf[0] = 0x4; |
| } |
| goto done; |
| } |
| i++; |
| } |
| for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
| if ((low & mask) == 0) { |
| if (update_Rc) { |
| env->crf[0] = 0x8; |
| } |
| goto done; |
| } |
| i++; |
| } |
| if (update_Rc) { |
| env->crf[0] = 0x2; |
| } |
| done: |
| env->xer = (env->xer & ~0x7F) | i; |
| if (update_Rc) { |
| env->crf[0] |= xer_so; |
| } |
| return i; |
| } |
