572 lines
16 KiB
C
572 lines
16 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dce.h"
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#include "libc/intrin/pshufd.h"
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#include "libc/intrin/pshufhw.h"
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#include "libc/intrin/pshuflw.h"
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#include "libc/intrin/pshufw.h"
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#include "libc/intrin/shufpd.h"
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#include "libc/intrin/shufps.h"
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#include "libc/macros.h"
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#include "libc/math.h"
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#include "libc/str/str.h"
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#include "tool/build/lib/endian.h"
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#include "tool/build/lib/flags.h"
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#include "tool/build/lib/modrm.h"
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#include "tool/build/lib/ssefloat.h"
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#include "tool/build/lib/throw.h"
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#define SSE_BUILTINS \
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(!IsModeDbg() && __SSE3__ + 0 && \
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(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 408)
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typedef int int_v _Vector_size(16) aligned(16);
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typedef long long_v _Vector_size(16) aligned(16);
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static float_v Addps(struct Machine *m, float_v x, float_v y) {
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return x + y;
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}
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static double_v Addpd(struct Machine *m, double_v x, double_v y) {
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return x + y;
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}
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static float_v Mulps(struct Machine *m, float_v x, float_v y) {
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return x * y;
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}
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static double_v Mulpd(struct Machine *m, double_v x, double_v y) {
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return x * y;
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}
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static float_v Subps(struct Machine *m, float_v x, float_v y) {
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return x - y;
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}
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static double_v Subpd(struct Machine *m, double_v x, double_v y) {
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return x - y;
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}
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static float_v Divps(struct Machine *m, float_v x, float_v y) {
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return x / y;
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}
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static double_v Divpd(struct Machine *m, double_v x, double_v y) {
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return x / y;
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}
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static float_v Andps(struct Machine *m, float_v x, float_v y) {
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return (float_v)((int_v)x & (int_v)y);
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}
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static double_v Andpd(struct Machine *m, double_v x, double_v y) {
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return (double_v)((long_v)x & (long_v)y);
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}
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static float_v Andnps(struct Machine *m, float_v x, float_v y) {
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return (float_v)(~(int_v)x & (int_v)y);
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}
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static double_v Andnpd(struct Machine *m, double_v x, double_v y) {
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return (double_v)(~(long_v)x & (long_v)y);
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}
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static float_v Orps(struct Machine *m, float_v x, float_v y) {
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return (float_v)((int_v)x | (int_v)y);
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}
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static double_v Orpd(struct Machine *m, double_v x, double_v y) {
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return (double_v)((long_v)x | (long_v)y);
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}
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static float_v Xorps(struct Machine *m, float_v x, float_v y) {
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return (float_v)((int_v)x ^ (int_v)y);
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}
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static double_v Xorpd(struct Machine *m, double_v x, double_v y) {
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return (double_v)((long_v)x ^ (long_v)y);
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}
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static float_v Minps(struct Machine *m, float_v x, float_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_minps(x, y);
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#else
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unsigned i;
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for (i = 0; i < 4; ++i) {
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x[i] = MIN(x[i], y[i]);
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}
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return x;
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#endif
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}
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static double_v Minpd(struct Machine *m, double_v x, double_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_minpd(x, y);
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#else
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unsigned i;
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for (i = 0; i < 2; ++i) {
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x[i] = MIN(x[i], y[i]);
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}
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return x;
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#endif
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}
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static float_v Maxps(struct Machine *m, float_v x, float_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_maxps(x, y);
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#else
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unsigned i;
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for (i = 0; i < 4; ++i) {
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x[i] = MAX(x[i], y[i]);
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}
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return x;
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#endif
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}
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static double_v Maxpd(struct Machine *m, double_v x, double_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_maxpd(x, y);
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#else
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unsigned i;
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for (i = 0; i < 2; ++i) {
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x[i] = MAX(x[i], y[i]);
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}
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return x;
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#endif
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}
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static double_v Haddpd(struct Machine *m, double_v x, double_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_haddpd(x, y);
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#else
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return (double_v){x[0] + x[1], y[0] + y[1]};
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#endif
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}
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static float_v Haddps(struct Machine *m, float_v x, float_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_haddps(x, y);
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#else
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return (float_v){x[0] + x[1], x[2] + x[3], y[0] + y[1], y[2] + y[3]};
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#endif
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}
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static double_v Hsubpd(struct Machine *m, double_v x, double_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_hsubpd(x, y);
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#else
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return (double_v){x[0] - x[1], y[0] - y[1]};
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#endif
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}
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static float_v Hsubps(struct Machine *m, float_v x, float_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_hsubps(x, y);
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#else
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return (float_v){x[0] - x[1], x[2] - x[3], y[0] - y[1], y[2] - y[3]};
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#endif
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}
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static double_v Addsubpd(struct Machine *m, double_v x, double_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_addsubpd(x, y);
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#else
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return (double_v){x[0] - y[0], x[1] + y[1]};
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#endif
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}
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static float_v Addsubps(struct Machine *m, float_v x, float_v y) {
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#if SSE_BUILTINS
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return __builtin_ia32_addsubps(x, y);
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#else
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return (float_v){x[0] - y[0], x[1] + y[1], x[2] - y[2], x[3] + y[3]};
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#endif
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}
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void OpUnpcklpsd(struct Machine *m, uint32_t rde) {
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uint8_t *a, *b;
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a = XmmRexrReg(m, rde);
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b = GetModrmRegisterXmmPointerRead8(m, rde);
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if (Osz(rde)) {
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memcpy(a + 8, b, 8);
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} else {
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memcpy(a + 4 * 3, b + 4, 4);
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memcpy(a + 4 * 2, a + 4, 4);
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memcpy(a + 4 * 1, b + 0, 4);
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}
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}
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void OpUnpckhpsd(struct Machine *m, uint32_t rde) {
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uint8_t *a, *b;
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a = XmmRexrReg(m, rde);
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b = GetModrmRegisterXmmPointerRead16(m, rde);
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if (Osz(rde)) {
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memcpy(a + 0, b + 8, 8);
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memcpy(a + 8, b + 8, 8);
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} else {
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memcpy(a + 4 * 0, a + 4 * 2, 4);
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memcpy(a + 4 * 1, b + 4 * 2, 4);
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memcpy(a + 4 * 2, a + 4 * 3, 4);
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memcpy(a + 4 * 3, b + 4 * 3, 4);
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}
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}
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void OpPextrwGdqpUdqIb(struct Machine *m, uint32_t rde) {
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uint8_t i;
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i = m->xedd->op.uimm0;
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i &= Osz(rde) ? 7 : 3;
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Write16(RegRexrReg(m, rde), Read16(XmmRexbRm(m, rde) + i * 2));
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}
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void OpPinsrwVdqEwIb(struct Machine *m, uint32_t rde) {
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uint8_t i;
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i = m->xedd->op.uimm0;
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i &= Osz(rde) ? 7 : 3;
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Write16(XmmRexrReg(m, rde) + i * 2,
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Read16(GetModrmRegisterWordPointerRead2(m, rde)));
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}
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void OpShuffle(struct Machine *m, uint32_t rde) {
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int16_t q16[4];
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int16_t x16[8];
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int32_t x32[4];
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switch (Rep(rde) | Osz(rde)) {
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case 0:
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memcpy(q16, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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(pshufw)(q16, q16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), q16, 8);
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break;
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case 1:
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memcpy(x32, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshufd)(x32, x32, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x32, 16);
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break;
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case 2:
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memcpy(x16, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshuflw)(x16, x16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x16, 16);
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break;
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case 3:
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memcpy(x16, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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(pshufhw)(x16, x16, m->xedd->op.uimm0);
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memcpy(XmmRexrReg(m, rde), x16, 16);
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break;
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default:
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unreachable;
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}
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}
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static void Shufps(struct Machine *m, uint32_t rde) {
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shufps((void *)XmmRexrReg(m, rde), (void *)XmmRexrReg(m, rde),
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(void *)GetModrmRegisterXmmPointerRead16(m, rde), m->xedd->op.uimm0);
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}
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static void Shufpd(struct Machine *m, uint32_t rde) {
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shufpd((void *)XmmRexrReg(m, rde), (void *)XmmRexrReg(m, rde),
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(void *)GetModrmRegisterXmmPointerRead16(m, rde), m->xedd->op.uimm0);
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}
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void OpShufpsd(struct Machine *m, uint32_t rde) {
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if (Osz(rde)) {
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Shufpd(m, rde);
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} else {
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Shufps(m, rde);
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}
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}
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void OpSqrtpsd(struct Machine *m, uint32_t rde) {
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long i;
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float_v xf;
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double_v xd;
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switch (Rep(rde) | Osz(rde)) {
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case 0:
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memcpy(&xf, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) xf[i] = sqrtf(xf[i]);
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memcpy(XmmRexrReg(m, rde), &xf, 16);
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break;
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case 1:
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memcpy(&xd, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 2; ++i) xd[i] = sqrt(xd[i]);
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memcpy(XmmRexrReg(m, rde), &xd, 16);
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break;
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case 2:
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memcpy(&xd, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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xd[0] = sqrt(xd[0]);
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memcpy(XmmRexrReg(m, rde), &xd, 8);
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break;
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case 3:
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memcpy(&xf, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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xf[0] = sqrtf(xf[0]);
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memcpy(XmmRexrReg(m, rde), &xf, 4);
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break;
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default:
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unreachable;
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}
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}
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void OpRsqrtps(struct Machine *m, uint32_t rde) {
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float_v x;
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unsigned i;
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if (Rep(rde) != 3) {
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memcpy(&x, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) x[i] = 1.f / sqrtf(x[i]);
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memcpy(XmmRexrReg(m, rde), &x, 16);
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} else {
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memcpy(&x, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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x[0] = 1.f / sqrtf(x[0]);
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memcpy(XmmRexrReg(m, rde), &x, 4);
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}
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}
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void OpRcpps(struct Machine *m, uint32_t rde) {
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float_v x;
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unsigned i;
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if (Rep(rde) != 3) {
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memcpy(&x, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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for (i = 0; i < 4; ++i) x[i] = 1.f / x[i];
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memcpy(XmmRexrReg(m, rde), &x, 16);
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} else {
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memcpy(&x, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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x[0] = 1.f / x[0];
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memcpy(XmmRexrReg(m, rde), &x, 4);
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}
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}
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static void VpsdWpsd(struct Machine *m, uint32_t rde,
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float_v opf(struct Machine *, float_v, float_v),
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double_v opd(struct Machine *, double_v, double_v),
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bool isfloat, bool isdouble) {
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float_v xf, yf;
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double_v xd, yd;
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if (isfloat) {
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memcpy(&xf, XmmRexrReg(m, rde), 16);
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memcpy(&yf, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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xf = opf(m, xf, yf);
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memcpy(XmmRexrReg(m, rde), &xf, 16);
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} else if (isdouble) {
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memcpy(&xd, XmmRexrReg(m, rde), 16);
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memcpy(&yd, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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xd = opd(m, xd, yd);
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memcpy(XmmRexrReg(m, rde), &xd, 16);
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} else {
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OpUd(m, rde);
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}
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}
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static void VpsdWpsd66(struct Machine *m, uint32_t rde,
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float_v opf(struct Machine *, float_v, float_v),
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double_v opd(struct Machine *, double_v, double_v)) {
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VpsdWpsd(m, rde, opf, opd, !Osz(rde), Osz(rde));
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}
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static void VpsdWpsd66f2(struct Machine *m, uint32_t rde,
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float_v opf(struct Machine *, float_v, float_v),
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double_v opd(struct Machine *, double_v, double_v)) {
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VpsdWpsd(m, rde, opf, opd, Rep(rde) == 2, Osz(rde));
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}
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static void VspsdWspsd(struct Machine *m, uint32_t rde,
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float_v opf(struct Machine *, float_v, float_v),
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double_v opd(struct Machine *, double_v, double_v)) {
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float_v xf, yf;
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double_v xd, yd;
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switch (Rep(rde) | Osz(rde)) {
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case 0:
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memcpy(&yf, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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memcpy(&xf, XmmRexrReg(m, rde), 16);
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xf = opf(m, xf, yf);
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memcpy(XmmRexrReg(m, rde), &xf, 16);
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break;
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case 1:
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memcpy(&yd, GetModrmRegisterXmmPointerRead16(m, rde), 16);
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memcpy(&xd, XmmRexrReg(m, rde), 16);
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xd = opd(m, xd, yd);
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memcpy(XmmRexrReg(m, rde), &xd, 16);
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break;
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case 2:
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memcpy(&yd, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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memcpy(&xd, XmmRexrReg(m, rde), 8);
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xd = opd(m, xd, yd);
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memcpy(XmmRexrReg(m, rde), &xd, 8);
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break;
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case 3:
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memcpy(&yf, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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memcpy(&xf, XmmRexrReg(m, rde), 4);
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xf = opf(m, xf, yf);
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memcpy(XmmRexrReg(m, rde), &xf, 4);
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break;
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default:
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unreachable;
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}
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}
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void OpComissVsWs(struct Machine *m, uint32_t rde) {
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float xf, yf;
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double xd, yd;
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uint8_t zf, cf, pf, ie;
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if (!Osz(rde)) {
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memcpy(&xf, XmmRexrReg(m, rde), 4);
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memcpy(&yf, GetModrmRegisterXmmPointerRead4(m, rde), 4);
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if (!isnan(xf) && !isnan(yf)) {
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zf = xf == yf;
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cf = xf < yf;
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pf = false;
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ie = false;
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} else {
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zf = cf = pf = ie = true;
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}
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} else {
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memcpy(&xd, XmmRexrReg(m, rde), 8);
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memcpy(&yd, GetModrmRegisterXmmPointerRead8(m, rde), 8);
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|
if (!isnan(xd) && !isnan(yd)) {
|
|
zf = xd == yd;
|
|
cf = xd < yd;
|
|
pf = false;
|
|
ie = false;
|
|
} else {
|
|
zf = cf = pf = ie = true;
|
|
}
|
|
}
|
|
m->flags = SetFlag(m->flags, FLAGS_ZF, zf);
|
|
m->flags = SetFlag(m->flags, FLAGS_PF, pf);
|
|
m->flags = SetFlag(m->flags, FLAGS_CF, cf);
|
|
m->flags = SetFlag(m->flags, FLAGS_SF, false);
|
|
m->flags = SetFlag(m->flags, FLAGS_OF, false);
|
|
if ((m->xedd->op.opcode & 1) && (m->sse.ie = ie) && !m->sse.im) {
|
|
HaltMachine(m, kMachineSimdException);
|
|
}
|
|
}
|
|
|
|
static float_v Cmpps(struct Machine *m, float_v x, float_v y) {
|
|
long i;
|
|
switch (m->xedd->op.uimm0) {
|
|
case 0:
|
|
return x == y;
|
|
case 1:
|
|
return x < y;
|
|
case 2:
|
|
return x <= y;
|
|
case 3:
|
|
for (i = 0; i < 4; ++i) {
|
|
x[i] = isnan(x[i]) || isnan(y[i]);
|
|
}
|
|
return x;
|
|
case 4:
|
|
return x != y;
|
|
case 5:
|
|
return x >= y;
|
|
case 6:
|
|
return x > y;
|
|
case 7:
|
|
for (i = 0; i < 4; ++i) {
|
|
x[i] = !(isnan(x[i]) || isnan(y[i]));
|
|
}
|
|
return x;
|
|
default:
|
|
OpUd(m, 0);
|
|
}
|
|
}
|
|
|
|
static double_v Cmppd(struct Machine *m, double_v x, double_v y) {
|
|
long i;
|
|
switch (m->xedd->op.uimm0) {
|
|
case 0:
|
|
return x == y;
|
|
case 1:
|
|
return x < y;
|
|
case 2:
|
|
return x <= y;
|
|
case 3:
|
|
for (i = 0; i < 2; ++i) {
|
|
x[i] = isnan(x[i]) || isnan(y[i]);
|
|
}
|
|
return x;
|
|
case 4:
|
|
return x != y;
|
|
case 5:
|
|
return x >= y;
|
|
case 6:
|
|
return x > y;
|
|
case 7:
|
|
for (i = 0; i < 2; ++i) {
|
|
x[i] = !(isnan(x[i]) || isnan(y[i]));
|
|
}
|
|
return x;
|
|
default:
|
|
OpUd(m, 0);
|
|
}
|
|
}
|
|
|
|
void OpAddpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Addps, Addpd);
|
|
}
|
|
|
|
void OpMulpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Mulps, Mulpd);
|
|
}
|
|
|
|
void OpSubpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Subps, Subpd);
|
|
}
|
|
|
|
void OpDivpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Divps, Divpd);
|
|
}
|
|
|
|
void OpMinpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Minps, Minpd);
|
|
}
|
|
|
|
void OpMaxpsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Maxps, Maxpd);
|
|
}
|
|
|
|
void OpCmppsd(struct Machine *m, uint32_t rde) {
|
|
VspsdWspsd(m, rde, Cmpps, Cmppd);
|
|
}
|
|
|
|
void OpAndpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66(m, rde, Andps, Andpd);
|
|
}
|
|
|
|
void OpAndnpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66(m, rde, Andnps, Andnpd);
|
|
}
|
|
|
|
void OpOrpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66(m, rde, Orps, Orpd);
|
|
}
|
|
|
|
void OpXorpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66(m, rde, Xorps, Xorpd);
|
|
}
|
|
|
|
void OpHaddpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66f2(m, rde, Haddps, Haddpd);
|
|
}
|
|
|
|
void OpHsubpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66f2(m, rde, Hsubps, Hsubpd);
|
|
}
|
|
|
|
void OpAddsubpsd(struct Machine *m, uint32_t rde) {
|
|
VpsdWpsd66f2(m, rde, Addsubps, Addsubpd);
|
|
}
|