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unicorn/qemu/target/i386/ops_sse.h
Joseph Myers 18b0ae9ebd target/i386: correct fix for pcmpxstrx substring search 
This corrects a bug introduced in my previous fix for SSE4.2 pcmpestri
/ pcmpestrm / pcmpistri / pcmpistrm substring search, commit
ae35eea7e4a9f21dd147406dfbcd0c4c6aaf2a60.

That commit fixed a bug that showed up in four GCC tests with one libc
implementation. The tests in question generate random inputs to the
intrinsics and compare results to a C implementation, but they only
test 1024 possible random inputs, and when the tests use the cases of
those instructions that work with word rather than byte inputs, it's
easy to have problematic cases that show up much less frequently than
that. Thus, testing with a different libc implementation, and so a
different random number generator, showed up a problem with the
previous patch.

When investigating the previous test failures, I found the description
of these instructions in the Intel manuals (starting from computing a
16x16 or 8x8 set of comparison results) confusing and hard to match up
with the more optimized implementation in QEMU, and referred to AMD
manuals which described the instructions in a different way. Those
AMD descriptions are very explicit that the whole of the string being
searched for must be found in the other operand, not running off the
end of that operand; they say "If the prototype and the SUT are equal
in length, the two strings must be identical for the comparison to be
TRUE.". However, that statement is incorrect.

In my previous commit message, I noted:

The operation in this case is a search for a string (argument d to
the helper) in another string (argument s to the helper); if a copy
of d at a particular position would run off the end of s, the
resulting output bit should be 0 whether or not the strings match in
the region where they overlap, but the QEMU implementation was
wrongly comparing only up to the point where s ends and counting it
as a match if an initial segment of d matched a terminal segment of
s. Here, "run off the end of s" means that some byte of d would
overlap some byte outside of s; thus, if d has zero length, it is
considered to match everywhere, including after the end of s.

The description "some byte of d would overlap some byte outside of s"
is accurate only when understood to refer to overlapping some byte
*within the 16-byte operand* but at or after the zero terminator; it
is valid to run over the end of s if the end of s is the end of the
16-byte operand. So the fix in the previous patch for the case of d
being empty was correct, but the other part of that patch was not
correct (as it never allowed partial matches even at the end of the
16-byte operand). Nor was the code before the previous patch correct
for the case of d nonempty, as it would always have allowed partial
matches at the end of s.

Fix with a partial revert of my previous change, combined with
inserting a check for the special case of s having maximum length to
determine where it is necessary to check for matches.

In the added test, test 1 is for the case of empty strings, which
failed before my 2017 patch, test 2 is for the bug introduced by my
2017 patch and test 3 deals with the case where a match of an initial
segment at the end of the string is not valid when the string ends
before the end of the 16-byte operand (that is, the case that would be
broken by a simple revert of the non-empty-string part of my 2017
patch).

Backports commit bc921b2711c4e2e8ab99a3045f6c0f134a93b535 from qemu
2020-06-15 13:20:48 -04:00

2322 lines
75 KiB
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/*
* MMX/3DNow!/SSE/SSE2/SSE3/SSSE3/SSE4/PNI support
*
* Copyright (c) 2005 Fabrice Bellard
* Copyright (c) 2008 Intel Corporation <andrew.zaborowski@intel.com>
*
* 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 "crypto/aes.h"
#if SHIFT == 0
#define Reg MMXReg
#define ZMM_ONLY(...)
#define B(n) MMX_B(n)
#define W(n) MMX_W(n)
#define L(n) MMX_L(n)
#define Q(n) MMX_Q(n)
#define SUFFIX _mmx
#else
#define Reg ZMMReg
#define ZMM_ONLY(...) __VA_ARGS__
#define B(n) ZMM_B(n)
#define W(n) ZMM_W(n)
#define L(n) ZMM_L(n)
#define Q(n) ZMM_Q(n)
#define SUFFIX _xmm
#endif
void glue(helper_psrlw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 15) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->W(0) >>= shift;
d->W(1) >>= shift;
d->W(2) >>= shift;
d->W(3) >>= shift;
#if SHIFT == 1
d->W(4) >>= shift;
d->W(5) >>= shift;
d->W(6) >>= shift;
d->W(7) >>= shift;
#endif
}
}
void glue(helper_psraw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 15) {
shift = 15;
} else {
shift = s->B(0);
}
d->W(0) = (int16_t)d->W(0) >> shift;
d->W(1) = (int16_t)d->W(1) >> shift;
d->W(2) = (int16_t)d->W(2) >> shift;
d->W(3) = (int16_t)d->W(3) >> shift;
#if SHIFT == 1
d->W(4) = (int16_t)d->W(4) >> shift;
d->W(5) = (int16_t)d->W(5) >> shift;
d->W(6) = (int16_t)d->W(6) >> shift;
d->W(7) = (int16_t)d->W(7) >> shift;
#endif
}
void glue(helper_psllw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 15) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->W(0) <<= shift;
d->W(1) <<= shift;
d->W(2) <<= shift;
d->W(3) <<= shift;
#if SHIFT == 1
d->W(4) <<= shift;
d->W(5) <<= shift;
d->W(6) <<= shift;
d->W(7) <<= shift;
#endif
}
}
void glue(helper_psrld, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 31) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->L(0) >>= shift;
d->L(1) >>= shift;
#if SHIFT == 1
d->L(2) >>= shift;
d->L(3) >>= shift;
#endif
}
}
void glue(helper_psrad, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 31) {
shift = 31;
} else {
shift = s->B(0);
}
d->L(0) = (int32_t)d->L(0) >> shift;
d->L(1) = (int32_t)d->L(1) >> shift;
#if SHIFT == 1
d->L(2) = (int32_t)d->L(2) >> shift;
d->L(3) = (int32_t)d->L(3) >> shift;
#endif
}
void glue(helper_pslld, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 31) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->L(0) <<= shift;
d->L(1) <<= shift;
#if SHIFT == 1
d->L(2) <<= shift;
d->L(3) <<= shift;
#endif
}
}
void glue(helper_psrlq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 63) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->Q(0) >>= shift;
#if SHIFT == 1
d->Q(1) >>= shift;
#endif
}
}
void glue(helper_psllq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift;
if (s->Q(0) > 63) {
d->Q(0) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
} else {
shift = s->B(0);
d->Q(0) <<= shift;
#if SHIFT == 1
d->Q(1) <<= shift;
#endif
}
}
#if SHIFT == 1
void glue(helper_psrldq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift, i;
shift = s->L(0);
if (shift > 16) {
shift = 16;
}
for (i = 0; i < 16 - shift; i++) {
d->B(i) = d->B(i + shift);
}
for (i = 16 - shift; i < 16; i++) {
d->B(i) = 0;
}
}
void glue(helper_pslldq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int shift, i;
shift = s->L(0);
if (shift > 16) {
shift = 16;
}
for (i = 15; i >= shift; i--) {
d->B(i) = d->B(i - shift);
}
for (i = 0; i < shift; i++) {
d->B(i) = 0;
}
}
#endif
#define SSE_HELPER_B(name, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->B(0) = F(d->B(0), s->B(0)); \
d->B(1) = F(d->B(1), s->B(1)); \
d->B(2) = F(d->B(2), s->B(2)); \
d->B(3) = F(d->B(3), s->B(3)); \
d->B(4) = F(d->B(4), s->B(4)); \
d->B(5) = F(d->B(5), s->B(5)); \
d->B(6) = F(d->B(6), s->B(6)); \
d->B(7) = F(d->B(7), s->B(7)); \
ZMM_ONLY( \
d->B(8) = F(d->B(8), s->B(8)); \
d->B(9) = F(d->B(9), s->B(9)); \
d->B(10) = F(d->B(10), s->B(10)); \
d->B(11) = F(d->B(11), s->B(11)); \
d->B(12) = F(d->B(12), s->B(12)); \
d->B(13) = F(d->B(13), s->B(13)); \
d->B(14) = F(d->B(14), s->B(14)); \
d->B(15) = F(d->B(15), s->B(15)); \
) \
}
#define SSE_HELPER_W(name, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->W(0) = F(d->W(0), s->W(0)); \
d->W(1) = F(d->W(1), s->W(1)); \
d->W(2) = F(d->W(2), s->W(2)); \
d->W(3) = F(d->W(3), s->W(3)); \
ZMM_ONLY( \
d->W(4) = F(d->W(4), s->W(4)); \
d->W(5) = F(d->W(5), s->W(5)); \
d->W(6) = F(d->W(6), s->W(6)); \
d->W(7) = F(d->W(7), s->W(7)); \
) \
}
#define SSE_HELPER_L(name, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->L(0) = F(d->L(0), s->L(0)); \
d->L(1) = F(d->L(1), s->L(1)); \
ZMM_ONLY( \
d->L(2) = F(d->L(2), s->L(2)); \
d->L(3) = F(d->L(3), s->L(3)); \
) \
}
#define SSE_HELPER_Q(name, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->Q(0) = F(d->Q(0), s->Q(0)); \
ZMM_ONLY( \
d->Q(1) = F(d->Q(1), s->Q(1)); \
) \
}
#if SHIFT == 0
static inline int satub(int x)
{
if (x < 0) {
return 0;
} else if (x > 255) {
return 255;
} else {
return x;
}
}
static inline int satuw(int x)
{
if (x < 0) {
return 0;
} else if (x > 65535) {
return 65535;
} else {
return x;
}
}
static inline int satsb(int x)
{
if (x < -128) {
return -128;
} else if (x > 127) {
return 127;
} else {
return x;
}
}
static inline int satsw(int x)
{
if (x < -32768) {
return -32768;
} else if (x > 32767) {
return 32767;
} else {
return x;
}
}
#define FADD(a, b) ((a) + (b))
#define FADDUB(a, b) satub((a) + (b))
#define FADDUW(a, b) satuw((a) + (b))
#define FADDSB(a, b) satsb((int8_t)(a) + (int8_t)(b))
#define FADDSW(a, b) satsw((int16_t)(a) + (int16_t)(b))
#define FSUB(a, b) ((a) - (b))
#define FSUBUB(a, b) satub((a) - (b))
#define FSUBUW(a, b) satuw((a) - (b))
#define FSUBSB(a, b) satsb((int8_t)(a) - (int8_t)(b))
#define FSUBSW(a, b) satsw((int16_t)(a) - (int16_t)(b))
#define FMINUB(a, b) ((a) < (b)) ? (a) : (b)
#define FMINSW(a, b) ((int16_t)(a) < (int16_t)(b)) ? (a) : (b)
#define FMAXUB(a, b) ((a) > (b)) ? (a) : (b)
#define FMAXSW(a, b) ((int16_t)(a) > (int16_t)(b)) ? (a) : (b)
#define FAND(a, b) ((a) & (b))
#define FANDN(a, b) ((~(a)) & (b))
#define FOR(a, b) ((a) | (b))
#define FXOR(a, b) ((a) ^ (b))
#define FCMPGTB(a, b) ((int8_t)(a) > (int8_t)(b) ? -1 : 0)
#define FCMPGTW(a, b) ((int16_t)(a) > (int16_t)(b) ? -1 : 0)
#define FCMPGTL(a, b) ((int32_t)(a) > (int32_t)(b) ? -1 : 0)
#define FCMPEQ(a, b) ((a) == (b) ? -1 : 0)
#define FMULLW(a, b) ((a) * (b))
#define FMULHRW(a, b) (((int16_t)(a) * (int16_t)(b) + 0x8000) >> 16)
#define FMULHUW(a, b) ((a) * (b) >> 16)
#define FMULHW(a, b) ((int16_t)(a) * (int16_t)(b) >> 16)
#define FAVG(a, b) (((a) + (b) + 1) >> 1)
#endif
SSE_HELPER_B(helper_paddb, FADD)
SSE_HELPER_W(helper_paddw, FADD)
SSE_HELPER_L(helper_paddl, FADD)
SSE_HELPER_Q(helper_paddq, FADD)
SSE_HELPER_B(helper_psubb, FSUB)
SSE_HELPER_W(helper_psubw, FSUB)
SSE_HELPER_L(helper_psubl, FSUB)
SSE_HELPER_Q(helper_psubq, FSUB)
SSE_HELPER_B(helper_paddusb, FADDUB)
SSE_HELPER_B(helper_paddsb, FADDSB)
SSE_HELPER_B(helper_psubusb, FSUBUB)
SSE_HELPER_B(helper_psubsb, FSUBSB)
SSE_HELPER_W(helper_paddusw, FADDUW)
SSE_HELPER_W(helper_paddsw, FADDSW)
SSE_HELPER_W(helper_psubusw, FSUBUW)
SSE_HELPER_W(helper_psubsw, FSUBSW)
SSE_HELPER_B(helper_pminub, FMINUB)
SSE_HELPER_B(helper_pmaxub, FMAXUB)
SSE_HELPER_W(helper_pminsw, FMINSW)
SSE_HELPER_W(helper_pmaxsw, FMAXSW)
SSE_HELPER_Q(helper_pand, FAND)
SSE_HELPER_Q(helper_pandn, FANDN)
SSE_HELPER_Q(helper_por, FOR)
SSE_HELPER_Q(helper_pxor, FXOR)
SSE_HELPER_B(helper_pcmpgtb, FCMPGTB)
SSE_HELPER_W(helper_pcmpgtw, FCMPGTW)
SSE_HELPER_L(helper_pcmpgtl, FCMPGTL)
SSE_HELPER_B(helper_pcmpeqb, FCMPEQ)
SSE_HELPER_W(helper_pcmpeqw, FCMPEQ)
SSE_HELPER_L(helper_pcmpeql, FCMPEQ)
SSE_HELPER_W(helper_pmullw, FMULLW)
#if SHIFT == 0
SSE_HELPER_W(helper_pmulhrw, FMULHRW)
#endif
SSE_HELPER_W(helper_pmulhuw, FMULHUW)
SSE_HELPER_W(helper_pmulhw, FMULHW)
SSE_HELPER_B(helper_pavgb, FAVG)
SSE_HELPER_W(helper_pavgw, FAVG)
void glue(helper_pmuludq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->Q(0) = (uint64_t)s->L(0) * (uint64_t)d->L(0);
#if SHIFT == 1
d->Q(1) = (uint64_t)s->L(2) * (uint64_t)d->L(2);
#endif
}
void glue(helper_pmaddwd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
for (i = 0; i < (2 << SHIFT); i++) {
d->L(i) = (int16_t)s->W(2 * i) * (int16_t)d->W(2 * i) +
(int16_t)s->W(2 * i + 1) * (int16_t)d->W(2 * i + 1);
}
}
#if SHIFT == 0
static inline int abs1(int a)
{
if (a < 0) {
return -a;
} else {
return a;
}
}
#endif
void glue(helper_psadbw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
unsigned int val;
val = 0;
val += abs1(d->B(0) - s->B(0));
val += abs1(d->B(1) - s->B(1));
val += abs1(d->B(2) - s->B(2));
val += abs1(d->B(3) - s->B(3));
val += abs1(d->B(4) - s->B(4));
val += abs1(d->B(5) - s->B(5));
val += abs1(d->B(6) - s->B(6));
val += abs1(d->B(7) - s->B(7));
d->Q(0) = val;
#if SHIFT == 1
val = 0;
val += abs1(d->B(8) - s->B(8));
val += abs1(d->B(9) - s->B(9));
val += abs1(d->B(10) - s->B(10));
val += abs1(d->B(11) - s->B(11));
val += abs1(d->B(12) - s->B(12));
val += abs1(d->B(13) - s->B(13));
val += abs1(d->B(14) - s->B(14));
val += abs1(d->B(15) - s->B(15));
d->Q(1) = val;
#endif
}
void glue(helper_maskmov, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
target_ulong a0)
{
int i;
for (i = 0; i < (8 << SHIFT); i++) {
if (s->B(i) & 0x80) {
cpu_stb_data_ra(env, a0 + i, d->B(i), GETPC());
}
}
}
void glue(helper_movl_mm_T0, SUFFIX)(Reg *d, uint32_t val)
{
d->L(0) = val;
d->L(1) = 0;
#if SHIFT == 1
d->Q(1) = 0;
#endif
}
#ifdef TARGET_X86_64
void glue(helper_movq_mm_T0, SUFFIX)(Reg *d, uint64_t val)
{
d->Q(0) = val;
#if SHIFT == 1
d->Q(1) = 0;
#endif
}
#endif
#if SHIFT == 0
void glue(helper_pshufw, SUFFIX)(Reg *d, Reg *s, int order)
{
Reg r;
r.W(0) = s->W(order & 3);
r.W(1) = s->W((order >> 2) & 3);
r.W(2) = s->W((order >> 4) & 3);
r.W(3) = s->W((order >> 6) & 3);
*d = r;
}
#else
void helper_shufps(Reg *d, Reg *s, int order)
{
Reg r;
r.L(0) = d->L(order & 3);
r.L(1) = d->L((order >> 2) & 3);
r.L(2) = s->L((order >> 4) & 3);
r.L(3) = s->L((order >> 6) & 3);
*d = r;
}
void helper_shufpd(Reg *d, Reg *s, int order)
{
Reg r;
r.Q(0) = d->Q(order & 1);
r.Q(1) = s->Q((order >> 1) & 1);
*d = r;
}
void glue(helper_pshufd, SUFFIX)(Reg *d, Reg *s, int order)
{
Reg r;
r.L(0) = s->L(order & 3);
r.L(1) = s->L((order >> 2) & 3);
r.L(2) = s->L((order >> 4) & 3);
r.L(3) = s->L((order >> 6) & 3);
*d = r;
}
void glue(helper_pshuflw, SUFFIX)(Reg *d, Reg *s, int order)
{
Reg r;
r.W(0) = s->W(order & 3);
r.W(1) = s->W((order >> 2) & 3);
r.W(2) = s->W((order >> 4) & 3);
r.W(3) = s->W((order >> 6) & 3);
r.Q(1) = s->Q(1);
*d = r;
}
void glue(helper_pshufhw, SUFFIX)(Reg *d, Reg *s, int order)
{
Reg r;
r.Q(0) = s->Q(0);
r.W(4) = s->W(4 + (order & 3));
r.W(5) = s->W(4 + ((order >> 2) & 3));
r.W(6) = s->W(4 + ((order >> 4) & 3));
r.W(7) = s->W(4 + ((order >> 6) & 3));
*d = r;
}
#endif
#if SHIFT == 1
/* FPU ops */
/* XXX: not accurate */
#define SSE_HELPER_S(name, F) \
void helper_ ## name ## ps(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_S(0) = F(32, d->ZMM_S(0), s->ZMM_S(0)); \
d->ZMM_S(1) = F(32, d->ZMM_S(1), s->ZMM_S(1)); \
d->ZMM_S(2) = F(32, d->ZMM_S(2), s->ZMM_S(2)); \
d->ZMM_S(3) = F(32, d->ZMM_S(3), s->ZMM_S(3)); \
} \
\
void helper_ ## name ## ss(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_S(0) = F(32, d->ZMM_S(0), s->ZMM_S(0)); \
} \
\
void helper_ ## name ## pd(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_D(0) = F(64, d->ZMM_D(0), s->ZMM_D(0)); \
d->ZMM_D(1) = F(64, d->ZMM_D(1), s->ZMM_D(1)); \
} \
\
void helper_ ## name ## sd(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_D(0) = F(64, d->ZMM_D(0), s->ZMM_D(0)); \
}
#define FPU_ADD(size, a, b) float ## size ## _add(a, b, &env->sse_status)
#define FPU_SUB(size, a, b) float ## size ## _sub(a, b, &env->sse_status)
#define FPU_MUL(size, a, b) float ## size ## _mul(a, b, &env->sse_status)
#define FPU_DIV(size, a, b) float ## size ## _div(a, b, &env->sse_status)
#define FPU_SQRT(size, a, b) float ## size ## _sqrt(b, &env->sse_status)
/* Note that the choice of comparison op here is important to get the
* special cases right: for min and max Intel specifies that (-0,0),
* (NaN, anything) and (anything, NaN) return the second argument.
*/
#define FPU_MIN(size, a, b) \
(float ## size ## _lt(a, b, &env->sse_status) ? (a) : (b))
#define FPU_MAX(size, a, b) \
(float ## size ## _lt(b, a, &env->sse_status) ? (a) : (b))
SSE_HELPER_S(add, FPU_ADD)
SSE_HELPER_S(sub, FPU_SUB)
SSE_HELPER_S(mul, FPU_MUL)
SSE_HELPER_S(div, FPU_DIV)
SSE_HELPER_S(min, FPU_MIN)
SSE_HELPER_S(max, FPU_MAX)
SSE_HELPER_S(sqrt, FPU_SQRT)
/* float to float conversions */
void helper_cvtps2pd(CPUX86State *env, Reg *d, Reg *s)
{
float32 s0, s1;
s0 = s->ZMM_S(0);
s1 = s->ZMM_S(1);
d->ZMM_D(0) = float32_to_float64(s0, &env->sse_status);
d->ZMM_D(1) = float32_to_float64(s1, &env->sse_status);
}
void helper_cvtpd2ps(CPUX86State *env, Reg *d, Reg *s)
{
d->ZMM_S(0) = float64_to_float32(s->ZMM_D(0), &env->sse_status);
d->ZMM_S(1) = float64_to_float32(s->ZMM_D(1), &env->sse_status);
d->Q(1) = 0;
}
void helper_cvtss2sd(CPUX86State *env, Reg *d, Reg *s)
{
d->ZMM_D(0) = float32_to_float64(s->ZMM_S(0), &env->sse_status);
}
void helper_cvtsd2ss(CPUX86State *env, Reg *d, Reg *s)
{
d->ZMM_S(0) = float64_to_float32(s->ZMM_D(0), &env->sse_status);
}
/* integer to float */
void helper_cvtdq2ps(CPUX86State *env, Reg *d, Reg *s)
{
d->ZMM_S(0) = int32_to_float32(s->ZMM_L(0), &env->sse_status);
d->ZMM_S(1) = int32_to_float32(s->ZMM_L(1), &env->sse_status);
d->ZMM_S(2) = int32_to_float32(s->ZMM_L(2), &env->sse_status);
d->ZMM_S(3) = int32_to_float32(s->ZMM_L(3), &env->sse_status);
}
void helper_cvtdq2pd(CPUX86State *env, Reg *d, Reg *s)
{
int32_t l0, l1;
l0 = (int32_t)s->ZMM_L(0);
l1 = (int32_t)s->ZMM_L(1);
d->ZMM_D(0) = int32_to_float64(l0, &env->sse_status);
d->ZMM_D(1) = int32_to_float64(l1, &env->sse_status);
}
void helper_cvtpi2ps(CPUX86State *env, ZMMReg *d, MMXReg *s)
{
d->ZMM_S(0) = int32_to_float32(s->MMX_L(0), &env->sse_status);
d->ZMM_S(1) = int32_to_float32(s->MMX_L(1), &env->sse_status);
}
void helper_cvtpi2pd(CPUX86State *env, ZMMReg *d, MMXReg *s)
{
d->ZMM_D(0) = int32_to_float64(s->MMX_L(0), &env->sse_status);
d->ZMM_D(1) = int32_to_float64(s->MMX_L(1), &env->sse_status);
}
void helper_cvtsi2ss(CPUX86State *env, ZMMReg *d, uint32_t val)
{
d->ZMM_S(0) = int32_to_float32(val, &env->sse_status);
}
void helper_cvtsi2sd(CPUX86State *env, ZMMReg *d, uint32_t val)
{
d->ZMM_D(0) = int32_to_float64(val, &env->sse_status);
}
#ifdef TARGET_X86_64
void helper_cvtsq2ss(CPUX86State *env, ZMMReg *d, uint64_t val)
{
d->ZMM_S(0) = int64_to_float32(val, &env->sse_status);
}
void helper_cvtsq2sd(CPUX86State *env, ZMMReg *d, uint64_t val)
{
d->ZMM_D(0) = int64_to_float64(val, &env->sse_status);
}
#endif
/* float to integer */
/*
* x86 mandates that we return the indefinite integer value for the result
* of any float-to-integer conversion that raises the 'invalid' exception.
* Wrap the softfloat functions to get this behaviour.
*/
#define WRAP_FLOATCONV(RETTYPE, FN, FLOATTYPE, INDEFVALUE) \
static inline RETTYPE x86_##FN(FLOATTYPE a, float_status *s) \
{ \
int oldflags, newflags; \
RETTYPE r; \
\
oldflags = get_float_exception_flags(s); \
set_float_exception_flags(0, s); \
r = FN(a, s); \
newflags = get_float_exception_flags(s); \
if (newflags & float_flag_invalid) { \
r = INDEFVALUE; \
} \
set_float_exception_flags(newflags | oldflags, s); \
return r; \
}
WRAP_FLOATCONV(int32_t, float32_to_int32, float32, INT32_MIN)
WRAP_FLOATCONV(int32_t, float32_to_int32_round_to_zero, float32, INT32_MIN)
WRAP_FLOATCONV(int32_t, float64_to_int32, float64, INT32_MIN)
WRAP_FLOATCONV(int32_t, float64_to_int32_round_to_zero, float64, INT32_MIN)
WRAP_FLOATCONV(int64_t, float32_to_int64, float32, INT64_MIN)
WRAP_FLOATCONV(int64_t, float32_to_int64_round_to_zero, float32, INT64_MIN)
WRAP_FLOATCONV(int64_t, float64_to_int64, float64, INT64_MIN)
WRAP_FLOATCONV(int64_t, float64_to_int64_round_to_zero, float64, INT64_MIN)
void helper_cvtps2dq(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_L(0) = x86_float32_to_int32(s->ZMM_S(0), &env->sse_status);
d->ZMM_L(1) = x86_float32_to_int32(s->ZMM_S(1), &env->sse_status);
d->ZMM_L(2) = x86_float32_to_int32(s->ZMM_S(2), &env->sse_status);
d->ZMM_L(3) = x86_float32_to_int32(s->ZMM_S(3), &env->sse_status);
}
void helper_cvtpd2dq(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_L(0) = x86_float64_to_int32(s->ZMM_D(0), &env->sse_status);
d->ZMM_L(1) = x86_float64_to_int32(s->ZMM_D(1), &env->sse_status);
d->ZMM_Q(1) = 0;
}
void helper_cvtps2pi(CPUX86State *env, MMXReg *d, ZMMReg *s)
{
d->MMX_L(0) = x86_float32_to_int32(s->ZMM_S(0), &env->sse_status);
d->MMX_L(1) = x86_float32_to_int32(s->ZMM_S(1), &env->sse_status);
}
void helper_cvtpd2pi(CPUX86State *env, MMXReg *d, ZMMReg *s)
{
d->MMX_L(0) = x86_float64_to_int32(s->ZMM_D(0), &env->sse_status);
d->MMX_L(1) = x86_float64_to_int32(s->ZMM_D(1), &env->sse_status);
}
int32_t helper_cvtss2si(CPUX86State *env, ZMMReg *s)
{
return x86_float32_to_int32(s->ZMM_S(0), &env->sse_status);
}
int32_t helper_cvtsd2si(CPUX86State *env, ZMMReg *s)
{
return x86_float64_to_int32(s->ZMM_D(0), &env->sse_status);
}
#ifdef TARGET_X86_64
int64_t helper_cvtss2sq(CPUX86State *env, ZMMReg *s)
{
return x86_float32_to_int64(s->ZMM_S(0), &env->sse_status);
}
int64_t helper_cvtsd2sq(CPUX86State *env, ZMMReg *s)
{
return x86_float64_to_int64(s->ZMM_D(0), &env->sse_status);
}
#endif
/* float to integer truncated */
void helper_cvttps2dq(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_L(0) = x86_float32_to_int32_round_to_zero(s->ZMM_S(0), &env->sse_status);
d->ZMM_L(1) = x86_float32_to_int32_round_to_zero(s->ZMM_S(1), &env->sse_status);
d->ZMM_L(2) = x86_float32_to_int32_round_to_zero(s->ZMM_S(2), &env->sse_status);
d->ZMM_L(3) = x86_float32_to_int32_round_to_zero(s->ZMM_S(3), &env->sse_status);
}
void helper_cvttpd2dq(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_L(0) = x86_float64_to_int32_round_to_zero(s->ZMM_D(0), &env->sse_status);
d->ZMM_L(1) = x86_float64_to_int32_round_to_zero(s->ZMM_D(1), &env->sse_status);
d->ZMM_Q(1) = 0;
}
void helper_cvttps2pi(CPUX86State *env, MMXReg *d, ZMMReg *s)
{
d->MMX_L(0) = x86_float32_to_int32_round_to_zero(s->ZMM_S(0), &env->sse_status);
d->MMX_L(1) = x86_float32_to_int32_round_to_zero(s->ZMM_S(1), &env->sse_status);
}
void helper_cvttpd2pi(CPUX86State *env, MMXReg *d, ZMMReg *s)
{
d->MMX_L(0) = x86_float64_to_int32_round_to_zero(s->ZMM_D(0), &env->sse_status);
d->MMX_L(1) = x86_float64_to_int32_round_to_zero(s->ZMM_D(1), &env->sse_status);
}
int32_t helper_cvttss2si(CPUX86State *env, ZMMReg *s)
{
return x86_float32_to_int32_round_to_zero(s->ZMM_S(0), &env->sse_status);
}
int32_t helper_cvttsd2si(CPUX86State *env, ZMMReg *s)
{
return x86_float64_to_int32_round_to_zero(s->ZMM_D(0), &env->sse_status);
}
#ifdef TARGET_X86_64
int64_t helper_cvttss2sq(CPUX86State *env, ZMMReg *s)
{
return x86_float32_to_int64_round_to_zero(s->ZMM_S(0), &env->sse_status);
}
int64_t helper_cvttsd2sq(CPUX86State *env, ZMMReg *s)
{
return x86_float64_to_int64_round_to_zero(s->ZMM_D(0), &env->sse_status);
}
#endif
void helper_rsqrtps(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_S(0) = float32_div(float32_one,
float32_sqrt(s->ZMM_S(0), &env->sse_status),
&env->sse_status);
d->ZMM_S(1) = float32_div(float32_one,
float32_sqrt(s->ZMM_S(1), &env->sse_status),
&env->sse_status);
d->ZMM_S(2) = float32_div(float32_one,
float32_sqrt(s->ZMM_S(2), &env->sse_status),
&env->sse_status);
d->ZMM_S(3) = float32_div(float32_one,
float32_sqrt(s->ZMM_S(3), &env->sse_status),
&env->sse_status);
}
void helper_rsqrtss(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_S(0) = float32_div(float32_one,
float32_sqrt(s->ZMM_S(0), &env->sse_status),
&env->sse_status);
}
void helper_rcpps(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_S(0) = float32_div(float32_one, s->ZMM_S(0), &env->sse_status);
d->ZMM_S(1) = float32_div(float32_one, s->ZMM_S(1), &env->sse_status);
d->ZMM_S(2) = float32_div(float32_one, s->ZMM_S(2), &env->sse_status);
d->ZMM_S(3) = float32_div(float32_one, s->ZMM_S(3), &env->sse_status);
}
void helper_rcpss(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_S(0) = float32_div(float32_one, s->ZMM_S(0), &env->sse_status);
}
static inline uint64_t helper_extrq(uint64_t src, int shift, int len)
{
uint64_t mask;
if (len == 0) {
mask = ~0LL;
} else {
mask = (1ULL << len) - 1;
}
return (src >> shift) & mask;
}
void helper_extrq_r(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_Q(0) = helper_extrq(d->ZMM_Q(0), s->ZMM_B(1), s->ZMM_B(0));
}
void helper_extrq_i(CPUX86State *env, ZMMReg *d, int index, int length)
{
d->ZMM_Q(0) = helper_extrq(d->ZMM_Q(0), index, length);
}
static inline uint64_t helper_insertq(uint64_t src, int shift, int len)
{
uint64_t mask;
if (len == 0) {
mask = ~0ULL;
} else {
mask = (1ULL << len) - 1;
}
return (src & ~(mask << shift)) | ((src & mask) << shift);
}
void helper_insertq_r(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_Q(0) = helper_insertq(s->ZMM_Q(0), s->ZMM_B(9), s->ZMM_B(8));
}
void helper_insertq_i(CPUX86State *env, ZMMReg *d, int index, int length)
{
d->ZMM_Q(0) = helper_insertq(d->ZMM_Q(0), index, length);
}
void helper_haddps(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
ZMMReg r;
r.ZMM_S(0) = float32_add(d->ZMM_S(0), d->ZMM_S(1), &env->sse_status);
r.ZMM_S(1) = float32_add(d->ZMM_S(2), d->ZMM_S(3), &env->sse_status);
r.ZMM_S(2) = float32_add(s->ZMM_S(0), s->ZMM_S(1), &env->sse_status);
r.ZMM_S(3) = float32_add(s->ZMM_S(2), s->ZMM_S(3), &env->sse_status);
*d = r;
}
void helper_haddpd(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
ZMMReg r;
r.ZMM_D(0) = float64_add(d->ZMM_D(0), d->ZMM_D(1), &env->sse_status);
r.ZMM_D(1) = float64_add(s->ZMM_D(0), s->ZMM_D(1), &env->sse_status);
*d = r;
}
void helper_hsubps(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
ZMMReg r;
r.ZMM_S(0) = float32_sub(d->ZMM_S(0), d->ZMM_S(1), &env->sse_status);
r.ZMM_S(1) = float32_sub(d->ZMM_S(2), d->ZMM_S(3), &env->sse_status);
r.ZMM_S(2) = float32_sub(s->ZMM_S(0), s->ZMM_S(1), &env->sse_status);
r.ZMM_S(3) = float32_sub(s->ZMM_S(2), s->ZMM_S(3), &env->sse_status);
*d = r;
}
void helper_hsubpd(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
ZMMReg r;
r.ZMM_D(0) = float64_sub(d->ZMM_D(0), d->ZMM_D(1), &env->sse_status);
r.ZMM_D(1) = float64_sub(s->ZMM_D(0), s->ZMM_D(1), &env->sse_status);
*d = r;
}
void helper_addsubps(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_S(0) = float32_sub(d->ZMM_S(0), s->ZMM_S(0), &env->sse_status);
d->ZMM_S(1) = float32_add(d->ZMM_S(1), s->ZMM_S(1), &env->sse_status);
d->ZMM_S(2) = float32_sub(d->ZMM_S(2), s->ZMM_S(2), &env->sse_status);
d->ZMM_S(3) = float32_add(d->ZMM_S(3), s->ZMM_S(3), &env->sse_status);
}
void helper_addsubpd(CPUX86State *env, ZMMReg *d, ZMMReg *s)
{
d->ZMM_D(0) = float64_sub(d->ZMM_D(0), s->ZMM_D(0), &env->sse_status);
d->ZMM_D(1) = float64_add(d->ZMM_D(1), s->ZMM_D(1), &env->sse_status);
}
/* XXX: unordered */
#define SSE_HELPER_CMP(name, F) \
void helper_ ## name ## ps(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_L(0) = F(32, d->ZMM_S(0), s->ZMM_S(0)); \
d->ZMM_L(1) = F(32, d->ZMM_S(1), s->ZMM_S(1)); \
d->ZMM_L(2) = F(32, d->ZMM_S(2), s->ZMM_S(2)); \
d->ZMM_L(3) = F(32, d->ZMM_S(3), s->ZMM_S(3)); \
} \
\
void helper_ ## name ## ss(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_L(0) = F(32, d->ZMM_S(0), s->ZMM_S(0)); \
} \
\
void helper_ ## name ## pd(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_Q(0) = F(64, d->ZMM_D(0), s->ZMM_D(0)); \
d->ZMM_Q(1) = F(64, d->ZMM_D(1), s->ZMM_D(1)); \
} \
\
void helper_ ## name ## sd(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->ZMM_Q(0) = F(64, d->ZMM_D(0), s->ZMM_D(0)); \
}
#define FPU_CMPEQ(size, a, b) \
(float ## size ## _eq_quiet(a, b, &env->sse_status) ? -1 : 0)
#define FPU_CMPLT(size, a, b) \
(float ## size ## _lt(a, b, &env->sse_status) ? -1 : 0)
#define FPU_CMPLE(size, a, b) \
(float ## size ## _le(a, b, &env->sse_status) ? -1 : 0)
#define FPU_CMPUNORD(size, a, b) \
(float ## size ## _unordered_quiet(a, b, &env->sse_status) ? -1 : 0)
#define FPU_CMPNEQ(size, a, b) \
(float ## size ## _eq_quiet(a, b, &env->sse_status) ? 0 : -1)
#define FPU_CMPNLT(size, a, b) \
(float ## size ## _lt(a, b, &env->sse_status) ? 0 : -1)
#define FPU_CMPNLE(size, a, b) \
(float ## size ## _le(a, b, &env->sse_status) ? 0 : -1)
#define FPU_CMPORD(size, a, b) \
(float ## size ## _unordered_quiet(a, b, &env->sse_status) ? 0 : -1)
SSE_HELPER_CMP(cmpeq, FPU_CMPEQ)
SSE_HELPER_CMP(cmplt, FPU_CMPLT)
SSE_HELPER_CMP(cmple, FPU_CMPLE)
SSE_HELPER_CMP(cmpunord, FPU_CMPUNORD)
SSE_HELPER_CMP(cmpneq, FPU_CMPNEQ)
SSE_HELPER_CMP(cmpnlt, FPU_CMPNLT)
SSE_HELPER_CMP(cmpnle, FPU_CMPNLE)
SSE_HELPER_CMP(cmpord, FPU_CMPORD)
static const int comis_eflags[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C};
void helper_ucomiss(CPUX86State *env, Reg *d, Reg *s)
{
FloatRelation ret;
float32 s0, s1;
s0 = d->ZMM_S(0);
s1 = s->ZMM_S(0);
ret = float32_compare_quiet(s0, s1, &env->sse_status);
CC_SRC = comis_eflags[ret + 1];
}
void helper_comiss(CPUX86State *env, Reg *d, Reg *s)
{
FloatRelation ret;
float32 s0, s1;
s0 = d->ZMM_S(0);
s1 = s->ZMM_S(0);
ret = float32_compare(s0, s1, &env->sse_status);
CC_SRC = comis_eflags[ret + 1];
}
void helper_ucomisd(CPUX86State *env, Reg *d, Reg *s)
{
FloatRelation ret;
float64 d0, d1;
d0 = d->ZMM_D(0);
d1 = s->ZMM_D(0);
ret = float64_compare_quiet(d0, d1, &env->sse_status);
CC_SRC = comis_eflags[ret + 1];
}
void helper_comisd(CPUX86State *env, Reg *d, Reg *s)
{
FloatRelation ret;
float64 d0, d1;
d0 = d->ZMM_D(0);
d1 = s->ZMM_D(0);
ret = float64_compare(d0, d1, &env->sse_status);
CC_SRC = comis_eflags[ret + 1];
}
uint32_t helper_movmskps(CPUX86State *env, Reg *s)
{
int b0, b1, b2, b3;
b0 = s->ZMM_L(0) >> 31;
b1 = s->ZMM_L(1) >> 31;
b2 = s->ZMM_L(2) >> 31;
b3 = s->ZMM_L(3) >> 31;
return b0 | (b1 << 1) | (b2 << 2) | (b3 << 3);
}
uint32_t helper_movmskpd(CPUX86State *env, Reg *s)
{
int b0, b1;
b0 = s->ZMM_L(1) >> 31;
b1 = s->ZMM_L(3) >> 31;
return b0 | (b1 << 1);
}
#endif
uint32_t glue(helper_pmovmskb, SUFFIX)(CPUX86State *env, Reg *s)
{
uint32_t val;
val = 0;
val |= (s->B(0) >> 7);
val |= (s->B(1) >> 6) & 0x02;
val |= (s->B(2) >> 5) & 0x04;
val |= (s->B(3) >> 4) & 0x08;
val |= (s->B(4) >> 3) & 0x10;
val |= (s->B(5) >> 2) & 0x20;
val |= (s->B(6) >> 1) & 0x40;
val |= (s->B(7)) & 0x80;
#if SHIFT == 1
val |= (s->B(8) << 1) & 0x0100;
val |= (s->B(9) << 2) & 0x0200;
val |= (s->B(10) << 3) & 0x0400;
val |= (s->B(11) << 4) & 0x0800;
val |= (s->B(12) << 5) & 0x1000;
val |= (s->B(13) << 6) & 0x2000;
val |= (s->B(14) << 7) & 0x4000;
val |= (s->B(15) << 8) & 0x8000;
#endif
return val;
}
void glue(helper_packsswb, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.B(0) = satsb((int16_t)d->W(0));
r.B(1) = satsb((int16_t)d->W(1));
r.B(2) = satsb((int16_t)d->W(2));
r.B(3) = satsb((int16_t)d->W(3));
#if SHIFT == 1
r.B(4) = satsb((int16_t)d->W(4));
r.B(5) = satsb((int16_t)d->W(5));
r.B(6) = satsb((int16_t)d->W(6));
r.B(7) = satsb((int16_t)d->W(7));
#endif
r.B((4 << SHIFT) + 0) = satsb((int16_t)s->W(0));
r.B((4 << SHIFT) + 1) = satsb((int16_t)s->W(1));
r.B((4 << SHIFT) + 2) = satsb((int16_t)s->W(2));
r.B((4 << SHIFT) + 3) = satsb((int16_t)s->W(3));
#if SHIFT == 1
r.B(12) = satsb((int16_t)s->W(4));
r.B(13) = satsb((int16_t)s->W(5));
r.B(14) = satsb((int16_t)s->W(6));
r.B(15) = satsb((int16_t)s->W(7));
#endif
*d = r;
}
void glue(helper_packuswb, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.B(0) = satub((int16_t)d->W(0));
r.B(1) = satub((int16_t)d->W(1));
r.B(2) = satub((int16_t)d->W(2));
r.B(3) = satub((int16_t)d->W(3));
#if SHIFT == 1
r.B(4) = satub((int16_t)d->W(4));
r.B(5) = satub((int16_t)d->W(5));
r.B(6) = satub((int16_t)d->W(6));
r.B(7) = satub((int16_t)d->W(7));
#endif
r.B((4 << SHIFT) + 0) = satub((int16_t)s->W(0));
r.B((4 << SHIFT) + 1) = satub((int16_t)s->W(1));
r.B((4 << SHIFT) + 2) = satub((int16_t)s->W(2));
r.B((4 << SHIFT) + 3) = satub((int16_t)s->W(3));
#if SHIFT == 1
r.B(12) = satub((int16_t)s->W(4));
r.B(13) = satub((int16_t)s->W(5));
r.B(14) = satub((int16_t)s->W(6));
r.B(15) = satub((int16_t)s->W(7));
#endif
*d = r;
}
void glue(helper_packssdw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.W(0) = satsw(d->L(0));
r.W(1) = satsw(d->L(1));
#if SHIFT == 1
r.W(2) = satsw(d->L(2));
r.W(3) = satsw(d->L(3));
#endif
r.W((2 << SHIFT) + 0) = satsw(s->L(0));
r.W((2 << SHIFT) + 1) = satsw(s->L(1));
#if SHIFT == 1
r.W(6) = satsw(s->L(2));
r.W(7) = satsw(s->L(3));
#endif
*d = r;
}
#define UNPCK_OP(base_name, base) \
\
void glue(helper_punpck ## base_name ## bw, SUFFIX)(CPUX86State *env,\
Reg *d, Reg *s) \
{ \
Reg r; \
\
r.B(0) = d->B((base << (SHIFT + 2)) + 0); \
r.B(1) = s->B((base << (SHIFT + 2)) + 0); \
r.B(2) = d->B((base << (SHIFT + 2)) + 1); \
r.B(3) = s->B((base << (SHIFT + 2)) + 1); \
r.B(4) = d->B((base << (SHIFT + 2)) + 2); \
r.B(5) = s->B((base << (SHIFT + 2)) + 2); \
r.B(6) = d->B((base << (SHIFT + 2)) + 3); \
r.B(7) = s->B((base << (SHIFT + 2)) + 3); \
ZMM_ONLY( \
r.B(8) = d->B((base << (SHIFT + 2)) + 4); \
r.B(9) = s->B((base << (SHIFT + 2)) + 4); \
r.B(10) = d->B((base << (SHIFT + 2)) + 5); \
r.B(11) = s->B((base << (SHIFT + 2)) + 5); \
r.B(12) = d->B((base << (SHIFT + 2)) + 6); \
r.B(13) = s->B((base << (SHIFT + 2)) + 6); \
r.B(14) = d->B((base << (SHIFT + 2)) + 7); \
r.B(15) = s->B((base << (SHIFT + 2)) + 7); \
) \
*d = r; \
} \
\
void glue(helper_punpck ## base_name ## wd, SUFFIX)(CPUX86State *env,\
Reg *d, Reg *s) \
{ \
Reg r; \
\
r.W(0) = d->W((base << (SHIFT + 1)) + 0); \
r.W(1) = s->W((base << (SHIFT + 1)) + 0); \
r.W(2) = d->W((base << (SHIFT + 1)) + 1); \
r.W(3) = s->W((base << (SHIFT + 1)) + 1); \
ZMM_ONLY( \
r.W(4) = d->W((base << (SHIFT + 1)) + 2); \
r.W(5) = s->W((base << (SHIFT + 1)) + 2); \
r.W(6) = d->W((base << (SHIFT + 1)) + 3); \
r.W(7) = s->W((base << (SHIFT + 1)) + 3); \
) \
*d = r; \
} \
\
void glue(helper_punpck ## base_name ## dq, SUFFIX)(CPUX86State *env,\
Reg *d, Reg *s) \
{ \
Reg r; \
\
r.L(0) = d->L((base << SHIFT) + 0); \
r.L(1) = s->L((base << SHIFT) + 0); \
ZMM_ONLY( \
r.L(2) = d->L((base << SHIFT) + 1); \
r.L(3) = s->L((base << SHIFT) + 1); \
) \
*d = r; \
} \
\
ZMM_ONLY( \
void glue(helper_punpck ## base_name ## qdq, SUFFIX)(CPUX86State \
*env, \
Reg *d, \
Reg *s) \
{ \
Reg r; \
\
r.Q(0) = d->Q(base); \
r.Q(1) = s->Q(base); \
*d = r; \
} \
)
UNPCK_OP(l, 0)
UNPCK_OP(h, 1)
/* 3DNow! float ops */
#if SHIFT == 0
void helper_pi2fd(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = int32_to_float32(s->MMX_L(0), &env->mmx_status);
d->MMX_S(1) = int32_to_float32(s->MMX_L(1), &env->mmx_status);
}
void helper_pi2fw(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = int32_to_float32((int16_t)s->MMX_W(0), &env->mmx_status);
d->MMX_S(1) = int32_to_float32((int16_t)s->MMX_W(2), &env->mmx_status);
}
void helper_pf2id(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(0) = float32_to_int32_round_to_zero(s->MMX_S(0), &env->mmx_status);
d->MMX_L(1) = float32_to_int32_round_to_zero(s->MMX_S(1), &env->mmx_status);
}
void helper_pf2iw(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(0) = satsw(float32_to_int32_round_to_zero(s->MMX_S(0),
&env->mmx_status));
d->MMX_L(1) = satsw(float32_to_int32_round_to_zero(s->MMX_S(1),
&env->mmx_status));
}
void helper_pfacc(CPUX86State *env, MMXReg *d, MMXReg *s)
{
MMXReg r;
r.MMX_S(0) = float32_add(d->MMX_S(0), d->MMX_S(1), &env->mmx_status);
r.MMX_S(1) = float32_add(s->MMX_S(0), s->MMX_S(1), &env->mmx_status);
*d = r;
}
void helper_pfadd(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = float32_add(d->MMX_S(0), s->MMX_S(0), &env->mmx_status);
d->MMX_S(1) = float32_add(d->MMX_S(1), s->MMX_S(1), &env->mmx_status);
}
void helper_pfcmpeq(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(0) = float32_eq_quiet(d->MMX_S(0), s->MMX_S(0),
&env->mmx_status) ? -1 : 0;
d->MMX_L(1) = float32_eq_quiet(d->MMX_S(1), s->MMX_S(1),
&env->mmx_status) ? -1 : 0;
}
void helper_pfcmpge(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(0) = float32_le(s->MMX_S(0), d->MMX_S(0),
&env->mmx_status) ? -1 : 0;
d->MMX_L(1) = float32_le(s->MMX_S(1), d->MMX_S(1),
&env->mmx_status) ? -1 : 0;
}
void helper_pfcmpgt(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(0) = float32_lt(s->MMX_S(0), d->MMX_S(0),
&env->mmx_status) ? -1 : 0;
d->MMX_L(1) = float32_lt(s->MMX_S(1), d->MMX_S(1),
&env->mmx_status) ? -1 : 0;
}
void helper_pfmax(CPUX86State *env, MMXReg *d, MMXReg *s)
{
if (float32_lt(d->MMX_S(0), s->MMX_S(0), &env->mmx_status)) {
d->MMX_S(0) = s->MMX_S(0);
}
if (float32_lt(d->MMX_S(1), s->MMX_S(1), &env->mmx_status)) {
d->MMX_S(1) = s->MMX_S(1);
}
}
void helper_pfmin(CPUX86State *env, MMXReg *d, MMXReg *s)
{
if (float32_lt(s->MMX_S(0), d->MMX_S(0), &env->mmx_status)) {
d->MMX_S(0) = s->MMX_S(0);
}
if (float32_lt(s->MMX_S(1), d->MMX_S(1), &env->mmx_status)) {
d->MMX_S(1) = s->MMX_S(1);
}
}
void helper_pfmul(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = float32_mul(d->MMX_S(0), s->MMX_S(0), &env->mmx_status);
d->MMX_S(1) = float32_mul(d->MMX_S(1), s->MMX_S(1), &env->mmx_status);
}
void helper_pfnacc(CPUX86State *env, MMXReg *d, MMXReg *s)
{
MMXReg r;
r.MMX_S(0) = float32_sub(d->MMX_S(0), d->MMX_S(1), &env->mmx_status);
r.MMX_S(1) = float32_sub(s->MMX_S(0), s->MMX_S(1), &env->mmx_status);
*d = r;
}
void helper_pfpnacc(CPUX86State *env, MMXReg *d, MMXReg *s)
{
MMXReg r;
r.MMX_S(0) = float32_sub(d->MMX_S(0), d->MMX_S(1), &env->mmx_status);
r.MMX_S(1) = float32_add(s->MMX_S(0), s->MMX_S(1), &env->mmx_status);
*d = r;
}
void helper_pfrcp(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = float32_div(float32_one, s->MMX_S(0), &env->mmx_status);
d->MMX_S(1) = d->MMX_S(0);
}
void helper_pfrsqrt(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_L(1) = s->MMX_L(0) & 0x7fffffff;
d->MMX_S(1) = float32_div(float32_one,
float32_sqrt(d->MMX_S(1), &env->mmx_status),
&env->mmx_status);
d->MMX_L(1) |= s->MMX_L(0) & 0x80000000;
d->MMX_L(0) = d->MMX_L(1);
}
void helper_pfsub(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = float32_sub(d->MMX_S(0), s->MMX_S(0), &env->mmx_status);
d->MMX_S(1) = float32_sub(d->MMX_S(1), s->MMX_S(1), &env->mmx_status);
}
void helper_pfsubr(CPUX86State *env, MMXReg *d, MMXReg *s)
{
d->MMX_S(0) = float32_sub(s->MMX_S(0), d->MMX_S(0), &env->mmx_status);
d->MMX_S(1) = float32_sub(s->MMX_S(1), d->MMX_S(1), &env->mmx_status);
}
void helper_pswapd(CPUX86State *env, MMXReg *d, MMXReg *s)
{
MMXReg r;
r.MMX_L(0) = s->MMX_L(1);
r.MMX_L(1) = s->MMX_L(0);
*d = r;
}
#endif
/* SSSE3 op helpers */
void glue(helper_pshufb, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg r;
for (i = 0; i < (8 << SHIFT); i++) {
r.B(i) = (s->B(i) & 0x80) ? 0 : (d->B(s->B(i) & ((8 << SHIFT) - 1)));
}
*d = r;
}
void glue(helper_phaddw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.W(0) = (int16_t)d->W(0) + (int16_t)d->W(1);
r.W(1) = (int16_t)d->W(2) + (int16_t)d->W(3);
XMM_ONLY(r.W(2) = (int16_t)d->W(4) + (int16_t)d->W(5));
XMM_ONLY(r.W(3) = (int16_t)d->W(6) + (int16_t)d->W(7));
r.W((2 << SHIFT) + 0) = (int16_t)s->W(0) + (int16_t)s->W(1);
r.W((2 << SHIFT) + 1) = (int16_t)s->W(2) + (int16_t)s->W(3);
XMM_ONLY(r.W(6) = (int16_t)s->W(4) + (int16_t)s->W(5));
XMM_ONLY(r.W(7) = (int16_t)s->W(6) + (int16_t)s->W(7));
*d = r;
}
void glue(helper_phaddd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.L(0) = (int32_t)d->L(0) + (int32_t)d->L(1);
XMM_ONLY(r.L(1) = (int32_t)d->L(2) + (int32_t)d->L(3));
r.L((1 << SHIFT) + 0) = (int32_t)s->L(0) + (int32_t)s->L(1);
XMM_ONLY(r.L(3) = (int32_t)s->L(2) + (int32_t)s->L(3));
*d = r;
}
void glue(helper_phaddsw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.W(0) = satsw((int16_t)d->W(0) + (int16_t)d->W(1));
r.W(1) = satsw((int16_t)d->W(2) + (int16_t)d->W(3));
XMM_ONLY(r.W(2) = satsw((int16_t)d->W(4) + (int16_t)d->W(5)));
XMM_ONLY(r.W(3) = satsw((int16_t)d->W(6) + (int16_t)d->W(7)));
r.W((2 << SHIFT) + 0) = satsw((int16_t)s->W(0) + (int16_t)s->W(1));
r.W((2 << SHIFT) + 1) = satsw((int16_t)s->W(2) + (int16_t)s->W(3));
XMM_ONLY(r.W(6) = satsw((int16_t)s->W(4) + (int16_t)s->W(5)));
XMM_ONLY(r.W(7) = satsw((int16_t)s->W(6) + (int16_t)s->W(7)));
*d = r;
}
void glue(helper_pmaddubsw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->W(0) = satsw((int8_t)s->B(0) * (uint8_t)d->B(0) +
(int8_t)s->B(1) * (uint8_t)d->B(1));
d->W(1) = satsw((int8_t)s->B(2) * (uint8_t)d->B(2) +
(int8_t)s->B(3) * (uint8_t)d->B(3));
d->W(2) = satsw((int8_t)s->B(4) * (uint8_t)d->B(4) +
(int8_t)s->B(5) * (uint8_t)d->B(5));
d->W(3) = satsw((int8_t)s->B(6) * (uint8_t)d->B(6) +
(int8_t)s->B(7) * (uint8_t)d->B(7));
#if SHIFT == 1
d->W(4) = satsw((int8_t)s->B(8) * (uint8_t)d->B(8) +
(int8_t)s->B(9) * (uint8_t)d->B(9));
d->W(5) = satsw((int8_t)s->B(10) * (uint8_t)d->B(10) +
(int8_t)s->B(11) * (uint8_t)d->B(11));
d->W(6) = satsw((int8_t)s->B(12) * (uint8_t)d->B(12) +
(int8_t)s->B(13) * (uint8_t)d->B(13));
d->W(7) = satsw((int8_t)s->B(14) * (uint8_t)d->B(14) +
(int8_t)s->B(15) * (uint8_t)d->B(15));
#endif
}
void glue(helper_phsubw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->W(0) = (int16_t)d->W(0) - (int16_t)d->W(1);
d->W(1) = (int16_t)d->W(2) - (int16_t)d->W(3);
ZMM_ONLY(d->W(2) = (int16_t)d->W(4) - (int16_t)d->W(5));
ZMM_ONLY(d->W(3) = (int16_t)d->W(6) - (int16_t)d->W(7));
d->W((2 << SHIFT) + 0) = (int16_t)s->W(0) - (int16_t)s->W(1);
d->W((2 << SHIFT) + 1) = (int16_t)s->W(2) - (int16_t)s->W(3);
ZMM_ONLY(d->W(6) = (int16_t)s->W(4) - (int16_t)s->W(5));
ZMM_ONLY(d->W(7) = (int16_t)s->W(6) - (int16_t)s->W(7));
}
void glue(helper_phsubd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->L(0) = (int32_t)d->L(0) - (int32_t)d->L(1);
ZMM_ONLY(d->L(1) = (int32_t)d->L(2) - (int32_t)d->L(3));
d->L((1 << SHIFT) + 0) = (uint32_t)((int32_t)s->L(0) - (int32_t)s->L(1));
ZMM_ONLY(d->L(3) = (int32_t)s->L(2) - (int32_t)s->L(3));
}
void glue(helper_phsubsw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->W(0) = satsw((int16_t)d->W(0) - (int16_t)d->W(1));
d->W(1) = satsw((int16_t)d->W(2) - (int16_t)d->W(3));
ZMM_ONLY(d->W(2) = satsw((int16_t)d->W(4) - (int16_t)d->W(5)));
ZMM_ONLY(d->W(3) = satsw((int16_t)d->W(6) - (int16_t)d->W(7)));
d->W((2 << SHIFT) + 0) = satsw((int16_t)s->W(0) - (int16_t)s->W(1));
d->W((2 << SHIFT) + 1) = satsw((int16_t)s->W(2) - (int16_t)s->W(3));
ZMM_ONLY(d->W(6) = satsw((int16_t)s->W(4) - (int16_t)s->W(5)));
ZMM_ONLY(d->W(7) = satsw((int16_t)s->W(6) - (int16_t)s->W(7)));
}
#define FABSB(_, x) (x > INT8_MAX ? -(int8_t)x : x)
#define FABSW(_, x) (x > INT16_MAX ? -(int16_t)x : x)
#define FABSL(_, x) (x > INT32_MAX ? -(int32_t)x : x)
SSE_HELPER_B(helper_pabsb, FABSB)
SSE_HELPER_W(helper_pabsw, FABSW)
SSE_HELPER_L(helper_pabsd, FABSL)
#define FMULHRSW(d, s) (((int16_t) d * (int16_t)s + 0x4000) >> 15)
SSE_HELPER_W(helper_pmulhrsw, FMULHRSW)
#define FSIGNB(d, s) (s <= INT8_MAX ? s ? d : 0 : -(int8_t)d)
#define FSIGNW(d, s) (s <= INT16_MAX ? s ? d : 0 : -(int16_t)d)
#define FSIGNL(d, s) (s <= INT32_MAX ? s ? d : 0 : -(int32_t)d)
SSE_HELPER_B(helper_psignb, FSIGNB)
SSE_HELPER_W(helper_psignw, FSIGNW)
SSE_HELPER_L(helper_psignd, FSIGNL)
void glue(helper_palignr, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
int32_t shift)
{
Reg r;
/* XXX could be checked during translation */
if (shift >= (16 << SHIFT)) {
r.Q(0) = 0;
ZMM_ONLY(r.Q(1) = 0);
} else {
shift <<= 3;
#define SHR(v, i) (i < 64 && i > -64 ? i > 0 ? v >> (i) : (v << -(i)) : 0)
#if SHIFT == 0
r.Q(0) = SHR(s->Q(0), shift - 0) |
SHR(d->Q(0), shift - 64);
#else
r.Q(0) = SHR(s->Q(0), shift - 0) |
SHR(s->Q(1), shift - 64) |
SHR(d->Q(0), shift - 128) |
SHR(d->Q(1), shift - 192);
r.Q(1) = SHR(s->Q(0), shift + 64) |
SHR(s->Q(1), shift - 0) |
SHR(d->Q(0), shift - 64) |
SHR(d->Q(1), shift - 128);
#endif
#undef SHR
}
*d = r;
}
#define XMM0 (env->xmm_regs[0])
#if SHIFT == 1
#define SSE_HELPER_V(name, elem, num, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
d->elem(0) = F(d->elem(0), s->elem(0), XMM0.elem(0)); \
d->elem(1) = F(d->elem(1), s->elem(1), XMM0.elem(1)); \
if (num > 2) { \
d->elem(2) = F(d->elem(2), s->elem(2), XMM0.elem(2)); \
d->elem(3) = F(d->elem(3), s->elem(3), XMM0.elem(3)); \
if (num > 4) { \
d->elem(4) = F(d->elem(4), s->elem(4), XMM0.elem(4)); \
d->elem(5) = F(d->elem(5), s->elem(5), XMM0.elem(5)); \
d->elem(6) = F(d->elem(6), s->elem(6), XMM0.elem(6)); \
d->elem(7) = F(d->elem(7), s->elem(7), XMM0.elem(7)); \
if (num > 8) { \
d->elem(8) = F(d->elem(8), s->elem(8), XMM0.elem(8)); \
d->elem(9) = F(d->elem(9), s->elem(9), XMM0.elem(9)); \
d->elem(10) = F(d->elem(10), s->elem(10), XMM0.elem(10)); \
d->elem(11) = F(d->elem(11), s->elem(11), XMM0.elem(11)); \
d->elem(12) = F(d->elem(12), s->elem(12), XMM0.elem(12)); \
d->elem(13) = F(d->elem(13), s->elem(13), XMM0.elem(13)); \
d->elem(14) = F(d->elem(14), s->elem(14), XMM0.elem(14)); \
d->elem(15) = F(d->elem(15), s->elem(15), XMM0.elem(15)); \
} \
} \
} \
}
#define SSE_HELPER_I(name, elem, num, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s, uint32_t imm) \
{ \
d->elem(0) = F(d->elem(0), s->elem(0), ((imm >> 0) & 1)); \
d->elem(1) = F(d->elem(1), s->elem(1), ((imm >> 1) & 1)); \
if (num > 2) { \
d->elem(2) = F(d->elem(2), s->elem(2), ((imm >> 2) & 1)); \
d->elem(3) = F(d->elem(3), s->elem(3), ((imm >> 3) & 1)); \
if (num > 4) { \
d->elem(4) = F(d->elem(4), s->elem(4), ((imm >> 4) & 1)); \
d->elem(5) = F(d->elem(5), s->elem(5), ((imm >> 5) & 1)); \
d->elem(6) = F(d->elem(6), s->elem(6), ((imm >> 6) & 1)); \
d->elem(7) = F(d->elem(7), s->elem(7), ((imm >> 7) & 1)); \
if (num > 8) { \
d->elem(8) = F(d->elem(8), s->elem(8), ((imm >> 8) & 1)); \
d->elem(9) = F(d->elem(9), s->elem(9), ((imm >> 9) & 1)); \
d->elem(10) = F(d->elem(10), s->elem(10), \
((imm >> 10) & 1)); \
d->elem(11) = F(d->elem(11), s->elem(11), \
((imm >> 11) & 1)); \
d->elem(12) = F(d->elem(12), s->elem(12), \
((imm >> 12) & 1)); \
d->elem(13) = F(d->elem(13), s->elem(13), \
((imm >> 13) & 1)); \
d->elem(14) = F(d->elem(14), s->elem(14), \
((imm >> 14) & 1)); \
d->elem(15) = F(d->elem(15), s->elem(15), \
((imm >> 15) & 1)); \
} \
} \
} \
}
/* SSE4.1 op helpers */
#define FBLENDVB(d, s, m) ((m & 0x80) ? s : d)
#define FBLENDVPS(d, s, m) ((m & 0x80000000) ? s : d)
#define FBLENDVPD(d, s, m) ((m & 0x8000000000000000LL) ? s : d)
SSE_HELPER_V(helper_pblendvb, B, 16, FBLENDVB)
SSE_HELPER_V(helper_blendvps, L, 4, FBLENDVPS)
SSE_HELPER_V(helper_blendvpd, Q, 2, FBLENDVPD)
void glue(helper_ptest, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
uint64_t zf = (s->Q(0) & d->Q(0)) | (s->Q(1) & d->Q(1));
uint64_t cf = (s->Q(0) & ~d->Q(0)) | (s->Q(1) & ~d->Q(1));
CC_SRC = (zf ? 0 : CC_Z) | (cf ? 0 : CC_C);
}
#define SSE_HELPER_F(name, elem, num, F) \
void glue(name, SUFFIX)(CPUX86State *env, Reg *d, Reg *s) \
{ \
if (num > 2) { \
if (num > 4) { \
d->elem(7) = F(7); \
d->elem(6) = F(6); \
d->elem(5) = F(5); \
d->elem(4) = F(4); \
} \
d->elem(3) = F(3); \
d->elem(2) = F(2); \
} \
d->elem(1) = F(1); \
d->elem(0) = F(0); \
}
SSE_HELPER_F(helper_pmovsxbw, W, 8, (int8_t) s->B)
SSE_HELPER_F(helper_pmovsxbd, L, 4, (int8_t) s->B)
SSE_HELPER_F(helper_pmovsxbq, Q, 2, (int8_t) s->B)
SSE_HELPER_F(helper_pmovsxwd, L, 4, (int16_t) s->W)
SSE_HELPER_F(helper_pmovsxwq, Q, 2, (int16_t) s->W)
SSE_HELPER_F(helper_pmovsxdq, Q, 2, (int32_t) s->L)
SSE_HELPER_F(helper_pmovzxbw, W, 8, s->B)
SSE_HELPER_F(helper_pmovzxbd, L, 4, s->B)
SSE_HELPER_F(helper_pmovzxbq, Q, 2, s->B)
SSE_HELPER_F(helper_pmovzxwd, L, 4, s->W)
SSE_HELPER_F(helper_pmovzxwq, Q, 2, s->W)
SSE_HELPER_F(helper_pmovzxdq, Q, 2, s->L)
void glue(helper_pmuldq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->Q(0) = (int64_t)(int32_t) d->L(0) * (int32_t) s->L(0);
d->Q(1) = (int64_t)(int32_t) d->L(2) * (int32_t) s->L(2);
}
#define FCMPEQQ(d, s) (d == s ? -1 : 0)
SSE_HELPER_Q(helper_pcmpeqq, FCMPEQQ)
void glue(helper_packusdw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
Reg r;
r.W(0) = satuw((int32_t) d->L(0));
r.W(1) = satuw((int32_t) d->L(1));
r.W(2) = satuw((int32_t) d->L(2));
r.W(3) = satuw((int32_t) d->L(3));
r.W(4) = satuw((int32_t) s->L(0));
r.W(5) = satuw((int32_t) s->L(1));
r.W(6) = satuw((int32_t) s->L(2));
r.W(7) = satuw((int32_t) s->L(3));
*d = r;
}
#define FMINSB(d, s) MIN((int8_t)d, (int8_t)s)
#define FMINSD(d, s) MIN((int32_t)d, (int32_t)s)
#define FMAXSB(d, s) MAX((int8_t)d, (int8_t)s)
#define FMAXSD(d, s) MAX((int32_t)d, (int32_t)s)
SSE_HELPER_B(helper_pminsb, FMINSB)
SSE_HELPER_L(helper_pminsd, FMINSD)
SSE_HELPER_W(helper_pminuw, MIN)
SSE_HELPER_L(helper_pminud, MIN)
SSE_HELPER_B(helper_pmaxsb, FMAXSB)
SSE_HELPER_L(helper_pmaxsd, FMAXSD)
SSE_HELPER_W(helper_pmaxuw, MAX)
SSE_HELPER_L(helper_pmaxud, MAX)
#define FMULLD(d, s) ((int32_t)d * (int32_t)s)
SSE_HELPER_L(helper_pmulld, FMULLD)
void glue(helper_phminposuw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int idx = 0;
if (s->W(1) < s->W(idx)) {
idx = 1;
}
if (s->W(2) < s->W(idx)) {
idx = 2;
}
if (s->W(3) < s->W(idx)) {
idx = 3;
}
if (s->W(4) < s->W(idx)) {
idx = 4;
}
if (s->W(5) < s->W(idx)) {
idx = 5;
}
if (s->W(6) < s->W(idx)) {
idx = 6;
}
if (s->W(7) < s->W(idx)) {
idx = 7;
}
d->W(0) = s->W(idx);
d->W(1) = idx;
d->L(1) = 0;
d->Q(1) = 0;
}
void glue(helper_roundps, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t mode)
{
signed char prev_rounding_mode;
prev_rounding_mode = env->sse_status.float_rounding_mode;
if (!(mode & (1 << 2))) {
switch (mode & 3) {
case 0:
set_float_rounding_mode(float_round_nearest_even, &env->sse_status);
break;
case 1:
set_float_rounding_mode(float_round_down, &env->sse_status);
break;
case 2:
set_float_rounding_mode(float_round_up, &env->sse_status);
break;
case 3:
set_float_rounding_mode(float_round_to_zero, &env->sse_status);
break;
}
}
d->ZMM_S(0) = float32_round_to_int(s->ZMM_S(0), &env->sse_status);
d->ZMM_S(1) = float32_round_to_int(s->ZMM_S(1), &env->sse_status);
d->ZMM_S(2) = float32_round_to_int(s->ZMM_S(2), &env->sse_status);
d->ZMM_S(3) = float32_round_to_int(s->ZMM_S(3), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3)) {
set_float_exception_flags(get_float_exception_flags(&env->sse_status) &
~float_flag_inexact,
&env->sse_status);
}
#endif
env->sse_status.float_rounding_mode = prev_rounding_mode;
}
void glue(helper_roundpd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t mode)
{
signed char prev_rounding_mode;
prev_rounding_mode = env->sse_status.float_rounding_mode;
if (!(mode & (1 << 2))) {
switch (mode & 3) {
case 0:
set_float_rounding_mode(float_round_nearest_even, &env->sse_status);
break;
case 1:
set_float_rounding_mode(float_round_down, &env->sse_status);
break;
case 2:
set_float_rounding_mode(float_round_up, &env->sse_status);
break;
case 3:
set_float_rounding_mode(float_round_to_zero, &env->sse_status);
break;
}
}
d->ZMM_D(0) = float64_round_to_int(s->ZMM_D(0), &env->sse_status);
d->ZMM_D(1) = float64_round_to_int(s->ZMM_D(1), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3)) {
set_float_exception_flags(get_float_exception_flags(&env->sse_status) &
~float_flag_inexact,
&env->sse_status);
}
#endif
env->sse_status.float_rounding_mode = prev_rounding_mode;
}
void glue(helper_roundss, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t mode)
{
signed char prev_rounding_mode;
prev_rounding_mode = env->sse_status.float_rounding_mode;
if (!(mode & (1 << 2))) {
switch (mode & 3) {
case 0:
set_float_rounding_mode(float_round_nearest_even, &env->sse_status);
break;
case 1:
set_float_rounding_mode(float_round_down, &env->sse_status);
break;
case 2:
set_float_rounding_mode(float_round_up, &env->sse_status);
break;
case 3:
set_float_rounding_mode(float_round_to_zero, &env->sse_status);
break;
}
}
d->ZMM_S(0) = float32_round_to_int(s->ZMM_S(0), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3)) {
set_float_exception_flags(get_float_exception_flags(&env->sse_status) &
~float_flag_inexact,
&env->sse_status);
}
#endif
env->sse_status.float_rounding_mode = prev_rounding_mode;
}
void glue(helper_roundsd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t mode)
{
signed char prev_rounding_mode;
prev_rounding_mode = env->sse_status.float_rounding_mode;
if (!(mode & (1 << 2))) {
switch (mode & 3) {
case 0:
set_float_rounding_mode(float_round_nearest_even, &env->sse_status);
break;
case 1:
set_float_rounding_mode(float_round_down, &env->sse_status);
break;
case 2:
set_float_rounding_mode(float_round_up, &env->sse_status);
break;
case 3:
set_float_rounding_mode(float_round_to_zero, &env->sse_status);
break;
}
}
d->ZMM_D(0) = float64_round_to_int(s->ZMM_D(0), &env->sse_status);
#if 0 /* TODO */
if (mode & (1 << 3)) {
set_float_exception_flags(get_float_exception_flags(&env->sse_status) &
~float_flag_inexact,
&env->sse_status);
}
#endif
env->sse_status.float_rounding_mode = prev_rounding_mode;
}
#define FBLENDP(d, s, m) (m ? s : d)
SSE_HELPER_I(helper_blendps, L, 4, FBLENDP)
SSE_HELPER_I(helper_blendpd, Q, 2, FBLENDP)
SSE_HELPER_I(helper_pblendw, W, 8, FBLENDP)
void glue(helper_dpps, SUFFIX)(CPUX86State *env, Reg *d, Reg *s, uint32_t mask)
{
float32 iresult = float32_zero;
if (mask & (1 << 4)) {
iresult = float32_add(iresult,
float32_mul(d->ZMM_S(0), s->ZMM_S(0),
&env->sse_status),
&env->sse_status);
}
if (mask & (1 << 5)) {
iresult = float32_add(iresult,
float32_mul(d->ZMM_S(1), s->ZMM_S(1),
&env->sse_status),
&env->sse_status);
}
if (mask & (1 << 6)) {
iresult = float32_add(iresult,
float32_mul(d->ZMM_S(2), s->ZMM_S(2),
&env->sse_status),
&env->sse_status);
}
if (mask & (1 << 7)) {
iresult = float32_add(iresult,
float32_mul(d->ZMM_S(3), s->ZMM_S(3),
&env->sse_status),
&env->sse_status);
}
d->ZMM_S(0) = (mask & (1 << 0)) ? iresult : float32_zero;
d->ZMM_S(1) = (mask & (1 << 1)) ? iresult : float32_zero;
d->ZMM_S(2) = (mask & (1 << 2)) ? iresult : float32_zero;
d->ZMM_S(3) = (mask & (1 << 3)) ? iresult : float32_zero;
}
void glue(helper_dppd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s, uint32_t mask)
{
float64 iresult = float64_zero;
if (mask & (1 << 4)) {
iresult = float64_add(iresult,
float64_mul(d->ZMM_D(0), s->ZMM_D(0),
&env->sse_status),
&env->sse_status);
}
if (mask & (1 << 5)) {
iresult = float64_add(iresult,
float64_mul(d->ZMM_D(1), s->ZMM_D(1),
&env->sse_status),
&env->sse_status);
}
d->ZMM_D(0) = (mask & (1 << 0)) ? iresult : float64_zero;
d->ZMM_D(1) = (mask & (1 << 1)) ? iresult : float64_zero;
}
void glue(helper_mpsadbw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t offset)
{
int s0 = (offset & 3) << 2;
int d0 = (offset & 4) << 0;
int i;
Reg r;
for (i = 0; i < 8; i++, d0++) {
r.W(i) = 0;
r.W(i) += abs1(d->B(d0 + 0) - s->B(s0 + 0));
r.W(i) += abs1(d->B(d0 + 1) - s->B(s0 + 1));
r.W(i) += abs1(d->B(d0 + 2) - s->B(s0 + 2));
r.W(i) += abs1(d->B(d0 + 3) - s->B(s0 + 3));
}
*d = r;
}
/* SSE4.2 op helpers */
#define FCMPGTQ(d, s) ((int64_t)d > (int64_t)s ? -1 : 0)
SSE_HELPER_Q(helper_pcmpgtq, FCMPGTQ)
static inline int pcmp_elen(CPUX86State *env, int reg, uint32_t ctrl)
{
int val;
/* Presence of REX.W is indicated by a bit higher than 7 set */
if (ctrl >> 8) {
val = abs1((int)env->regs[reg]);
} else {
val = abs1((int32_t)env->regs[reg]);
}
if (ctrl & 1) {
if (val > 8) {
return 8;
}
} else {
if (val > 16) {
return 16;
}
}
return val;
}
static inline int pcmp_ilen(Reg *r, uint8_t ctrl)
{
int val = 0;
if (ctrl & 1) {
while (val < 8 && r->W(val)) {
val++;
}
} else {
while (val < 16 && r->B(val)) {
val++;
}
}
return val;
}
static inline int pcmp_val(Reg *r, uint8_t ctrl, int i)
{
switch ((ctrl >> 0) & 3) {
case 0:
return r->B(i);
case 1:
return r->W(i);
case 2:
return (int8_t)r->B(i);
case 3:
default:
return (int16_t)r->W(i);
}
}
static inline unsigned pcmpxstrx(CPUX86State *env, Reg *d, Reg *s,
int8_t ctrl, int valids, int validd)
{
unsigned int res = 0;
int v;
int j, i;
int upper = (ctrl & 1) ? 7 : 15;
valids--;
validd--;
CC_SRC = (valids < upper ? CC_Z : 0) | (validd < upper ? CC_S : 0);
switch ((ctrl >> 2) & 3) {
case 0:
for (j = valids; j >= 0; j--) {
res <<= 1;
v = pcmp_val(s, ctrl, j);
for (i = validd; i >= 0; i--) {
res |= (v == pcmp_val(d, ctrl, i));
}
}
break;
case 1:
for (j = valids; j >= 0; j--) {
res <<= 1;
v = pcmp_val(s, ctrl, j);
for (i = ((validd - 1) | 1); i >= 0; i -= 2) {
res |= (pcmp_val(d, ctrl, i - 0) >= v &&
pcmp_val(d, ctrl, i - 1) <= v);
}
}
break;
case 2:
res = (1 << (upper - MAX(valids, validd))) - 1;
res <<= MAX(valids, validd) - MIN(valids, validd);
for (i = MIN(valids, validd); i >= 0; i--) {
res <<= 1;
v = pcmp_val(s, ctrl, i);
res |= (v == pcmp_val(d, ctrl, i));
}
break;
case 3:
if (validd == -1) {
res = (2 << upper) - 1;
break;
}
for (j = valids == upper ? valids : valids - validd; j >= 0; j--) {
res <<= 1;
v = 1;
for (i = MIN(valids - j, validd); i >= 0; i--) {
v &= (pcmp_val(s, ctrl, i + j) == pcmp_val(d, ctrl, i));
}
res |= v;
}
break;
}
switch ((ctrl >> 4) & 3) {
case 1:
res ^= (2 << upper) - 1;
break;
case 3:
res ^= (1 << (valids + 1)) - 1;
break;
}
if (res) {
CC_SRC |= CC_C;
}
if (res & 1) {
CC_SRC |= CC_O;
}
return res;
}
void glue(helper_pcmpestri, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
unsigned int res = pcmpxstrx(env, d, s, ctrl,
pcmp_elen(env, R_EDX, ctrl),
pcmp_elen(env, R_EAX, ctrl));
if (res) {
env->regs[R_ECX] = (ctrl & (1 << 6)) ? 31 - clz32(res) : ctz32(res);
} else {
env->regs[R_ECX] = 16 >> (ctrl & (1 << 0));
}
}
void glue(helper_pcmpestrm, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
int i;
unsigned int res = pcmpxstrx(env, d, s, ctrl,
pcmp_elen(env, R_EDX, ctrl),
pcmp_elen(env, R_EAX, ctrl));
if ((ctrl >> 6) & 1) {
if (ctrl & 1) {
for (i = 0; i < 8; i++, res >>= 1) {
env->xmm_regs[0].W(i) = (res & 1) ? ~0 : 0;
}
} else {
for (i = 0; i < 16; i++, res >>= 1) {
env->xmm_regs[0].B(i) = (res & 1) ? ~0 : 0;
}
}
} else {
env->xmm_regs[0].Q(1) = 0;
env->xmm_regs[0].Q(0) = res;
}
}
void glue(helper_pcmpistri, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
unsigned int res = pcmpxstrx(env, d, s, ctrl,
pcmp_ilen(s, ctrl),
pcmp_ilen(d, ctrl));
if (res) {
env->regs[R_ECX] = (ctrl & (1 << 6)) ? 31 - clz32(res) : ctz32(res);
} else {
env->regs[R_ECX] = 16 >> (ctrl & (1 << 0));
}
}
void glue(helper_pcmpistrm, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
int i;
unsigned int res = pcmpxstrx(env, d, s, ctrl,
pcmp_ilen(s, ctrl),
pcmp_ilen(d, ctrl));
if ((ctrl >> 6) & 1) {
if (ctrl & 1) {
for (i = 0; i < 8; i++, res >>= 1) {
env->xmm_regs[0].W(i) = (res & 1) ? ~0 : 0;
}
} else {
for (i = 0; i < 16; i++, res >>= 1) {
env->xmm_regs[0].B(i) = (res & 1) ? ~0 : 0;
}
}
} else {
env->xmm_regs[0].Q(1) = 0;
env->xmm_regs[0].Q(0) = res;
}
}
#define CRCPOLY 0x1edc6f41
#define CRCPOLY_BITREV 0x82f63b78
target_ulong helper_crc32(uint32_t crc1, target_ulong msg, uint32_t len)
{
target_ulong crc = (msg & ((target_ulong) -1 >>
(TARGET_LONG_BITS - len))) ^ crc1;
while (len--) {
crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_BITREV : 0);
}
return crc;
}
void glue(helper_pclmulqdq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
uint64_t ah, al, b, resh, resl;
ah = 0;
al = d->Q((ctrl & 1) != 0);
b = s->Q((ctrl & 16) != 0);
resh = resl = 0;
while (b) {
if (b & 1) {
resl ^= al;
resh ^= ah;
}
ah = (ah << 1) | (al >> 63);
al <<= 1;
b >>= 1;
}
d->Q(0) = resl;
d->Q(1) = resh;
}
void glue(helper_aesdec, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg st = *d;
Reg rk = *s;
for (i = 0 ; i < 4 ; i++) {
d->L(i) = rk.L(i) ^ bswap32(AES_Td0[st.B(AES_ishifts[4*i+0])] ^
AES_Td1[st.B(AES_ishifts[4*i+1])] ^
AES_Td2[st.B(AES_ishifts[4*i+2])] ^
AES_Td3[st.B(AES_ishifts[4*i+3])]);
}
}
void glue(helper_aesdeclast, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg st = *d;
Reg rk = *s;
for (i = 0; i < 16; i++) {
d->B(i) = rk.B(i) ^ (AES_isbox[st.B(AES_ishifts[i])]);
}
}
void glue(helper_aesenc, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg st = *d;
Reg rk = *s;
for (i = 0 ; i < 4 ; i++) {
d->L(i) = rk.L(i) ^ bswap32(AES_Te0[st.B(AES_shifts[4*i+0])] ^
AES_Te1[st.B(AES_shifts[4*i+1])] ^
AES_Te2[st.B(AES_shifts[4*i+2])] ^
AES_Te3[st.B(AES_shifts[4*i+3])]);
}
}
void glue(helper_aesenclast, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg st = *d;
Reg rk = *s;
for (i = 0; i < 16; i++) {
d->B(i) = rk.B(i) ^ (AES_sbox[st.B(AES_shifts[i])]);
}
}
void glue(helper_aesimc, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
int i;
Reg tmp = *s;
for (i = 0 ; i < 4 ; i++) {
d->L(i) = bswap32(AES_imc[tmp.B(4*i+0)][0] ^
AES_imc[tmp.B(4*i+1)][1] ^
AES_imc[tmp.B(4*i+2)][2] ^
AES_imc[tmp.B(4*i+3)][3]);
}
}
void glue(helper_aeskeygenassist, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
uint32_t ctrl)
{
int i;
Reg tmp = *s;
for (i = 0 ; i < 4 ; i++) {
d->B(i) = AES_sbox[tmp.B(i + 4)];
d->B(i + 8) = AES_sbox[tmp.B(i + 12)];
}
d->L(1) = (d->L(0) << 24 | d->L(0) >> 8) ^ ctrl;
d->L(3) = (d->L(2) << 24 | d->L(2) >> 8) ^ ctrl;
}
#endif
#undef SHIFT
#undef ZMM_ONLY
#undef Reg
#undef B
#undef W
#undef L
#undef Q
#undef SUFFIX
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