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DOSBox-X
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DOSBox-X
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00001 /* 00002 * Copyright (C) 2002-2020 The DOSBox Team 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License along 00015 * with this program; if not, write to the Free Software Foundation, Inc., 00016 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00017 */ 00018 00019 00020 #include "dosbox.h" 00021 00022 #include "mem.h" 00023 #include "mmx.h" 00024 #include "cpu.h" 00025 #include "fpu.h" 00026 00027 #if C_FPU 00028 00029 MMX_reg *reg_mmx[8] = { 00030 #if defined(HAS_LONG_DOUBLE) 00031 &fpu._do_not_use__regs[0].reg_mmx, 00032 &fpu._do_not_use__regs[1].reg_mmx, 00033 &fpu._do_not_use__regs[2].reg_mmx, 00034 &fpu._do_not_use__regs[3].reg_mmx, 00035 &fpu._do_not_use__regs[4].reg_mmx, 00036 &fpu._do_not_use__regs[5].reg_mmx, 00037 &fpu._do_not_use__regs[6].reg_mmx, 00038 &fpu._do_not_use__regs[7].reg_mmx, 00039 #else 00040 &fpu.regs[0].reg_mmx, 00041 &fpu.regs[1].reg_mmx, 00042 &fpu.regs[2].reg_mmx, 00043 &fpu.regs[3].reg_mmx, 00044 &fpu.regs[4].reg_mmx, 00045 &fpu.regs[5].reg_mmx, 00046 &fpu.regs[6].reg_mmx, 00047 &fpu.regs[7].reg_mmx, 00048 #endif 00049 }; 00050 00051 MMX_reg * lookupRMregMM[256]={ 00052 reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0], 00053 reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1], 00054 reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2], 00055 reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3], 00056 reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4], 00057 reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5], 00058 reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6], 00059 reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7], 00060 00061 reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0], 00062 reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1], 00063 reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2], 00064 reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3], 00065 reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4], 00066 reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5], 00067 reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6], 00068 reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7], 00069 00070 reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0], 00071 reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1], 00072 reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2], 00073 reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3], 00074 reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4], 00075 reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5], 00076 reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6], 00077 reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7], 00078 00079 reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0],reg_mmx[0], 00080 reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1],reg_mmx[1], 00081 reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2],reg_mmx[2], 00082 reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3],reg_mmx[3], 00083 reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4],reg_mmx[4], 00084 reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5],reg_mmx[5], 00085 reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6],reg_mmx[6], 00086 reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7],reg_mmx[7], 00087 }; 00088 00089 00090 Bit8s SaturateWordSToByteS(Bit16s value) 00091 { 00092 if(value < -128) return -128; 00093 if(value > 127) return 127; 00094 return (Bit8s) value; 00095 } 00096 00097 Bit16s SaturateDwordSToWordS(Bit32s value) 00098 { 00099 if(value < -32768) return -32768; 00100 if(value > 32767) return 32767; 00101 return (Bit16s) value; 00102 } 00103 00104 Bit8u SaturateWordSToByteU(Bit16s value) 00105 { 00106 if(value < 0) return 0; 00107 if(value > 255) return 255; 00108 return (Bit8u) value; 00109 } 00110 00111 Bit16u SaturateDwordSToWordU(Bit32s value) 00112 { 00113 if(value < 0) return 0; 00114 if(value > 65535) return 65535; 00115 return (Bit16u) value; 00116 } 00117 00118 void setFPUTagEmpty() { 00119 FPU_SetCW(0x37F); 00120 fpu.sw = 0; 00121 TOP = FPU_GET_TOP(); 00122 fpu.tags[0] = TAG_Empty; 00123 fpu.tags[1] = TAG_Empty; 00124 fpu.tags[2] = TAG_Empty; 00125 fpu.tags[3] = TAG_Empty; 00126 fpu.tags[4] = TAG_Empty; 00127 fpu.tags[5] = TAG_Empty; 00128 fpu.tags[6] = TAG_Empty; 00129 fpu.tags[7] = TAG_Empty; 00130 fpu.tags[8] = TAG_Valid; // is only used by us 00131 } 00132 00133 #endif 00134
1.8.0
