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int_helper.c
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int_helper.c
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/*
* 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_cntlzw(target_ulong t)
{
return clz32(t);
}
#if defined(TARGET_PPC64)
target_ulong helper_cntlzd(target_ulong t)
{
return clz64(t);
}
#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)