mirror of
https://github.com/joncampbell123/dosbox-x.git
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109 lines
2.4 KiB
C
109 lines
2.4 KiB
C
/*
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* Copyright (C) 2002-2021 The DOSBox Team
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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; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef DOSBOX_MMX_H
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#define DOSBOX_MMX_H
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#if C_FPU
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typedef union {
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uint64_t q;
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#ifndef WORDS_BIGENDIAN
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struct {
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uint32_t d0,d1;
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} ud;
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static_assert(sizeof(ud) == 8, "MMX packing error");
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struct {
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int32_t d0,d1;
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} sd;
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static_assert(sizeof(sd) == 8, "MMX packing error");
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struct {
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uint16_t w0,w1,w2,w3;
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} uw;
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static_assert(sizeof(uw) == 8, "MMX packing error");
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uint16_t uwa[4]; /* for PSHUFW */
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static_assert(sizeof(uwa) == 8, "MMX packing error");
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struct {
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int16_t w0,w1,w2,w3;
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} sw;
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static_assert(sizeof(sw) == 8, "MMX packing error");
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struct {
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uint8_t b0,b1,b2,b3,b4,b5,b6,b7;
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} ub;
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static_assert(sizeof(ub) == 8, "MMX packing error");
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struct {
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int8_t b0,b1,b2,b3,b4,b5,b6,b7;
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} sb;
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static_assert(sizeof(sb) == 8, "MMX packing error");
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#else
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struct {
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uint32_t d1,d0;
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} ud;
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static_assert(sizeof(ud) == 8, "MMX packing error");
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struct {
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int32_t d1,d0;
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} sd;
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static_assert(sizeof(sd) == 8, "MMX packing error");
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struct {
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uint16_t w3,w2,w1,w0;
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} uw;
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static_assert(sizeof(uw) == 8, "MMX packing error");
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struct {
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uint16_t w3,w2,w1,w0;
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} sw;
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static_assert(sizeof(sw) == 8, "MMX packing error");
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struct {
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uint8_t b7,b6,b5,b4,b3,b2,b1,b0;
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} ub;
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static_assert(sizeof(ub) == 8, "MMX packing error");
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struct {
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uint8_t b7,b6,b5,b4,b3,b2,b1,b0;
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} sb;
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static_assert(sizeof(sb) == 8, "MMX packing error");
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#endif
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} MMX_reg;
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extern MMX_reg * reg_mmx[8];
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extern MMX_reg * lookupRMregMM[256];
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int8_t SaturateWordSToByteS(int16_t value);
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int16_t SaturateDwordSToWordS(int32_t value);
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uint8_t SaturateWordSToByteU(int16_t value);
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uint16_t SaturateDwordSToWordU(int32_t value);
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void setFPUTagEmpty();
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#endif
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#endif
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