root / target-arm / nwfpe / extended_cpdo.c @ d1d9f421
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1 | 00406dff | bellard | /*
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2 | 00406dff | bellard | NetWinder Floating Point Emulator
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3 | 00406dff | bellard | (c) Rebel.COM, 1998,1999
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4 | 00406dff | bellard | |
5 | 00406dff | bellard | Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
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6 | 00406dff | bellard | |
7 | 00406dff | bellard | This program is free software; you can redistribute it and/or modify
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8 | 00406dff | bellard | it under the terms of the GNU General Public License as published by
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9 | 00406dff | bellard | the Free Software Foundation; either version 2 of the License, or
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10 | 00406dff | bellard | (at your option) any later version.
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11 | 00406dff | bellard | |
12 | 00406dff | bellard | This program is distributed in the hope that it will be useful,
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13 | 00406dff | bellard | but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | 00406dff | bellard | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | 00406dff | bellard | GNU General Public License for more details.
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16 | 00406dff | bellard | |
17 | 00406dff | bellard | You should have received a copy of the GNU General Public License
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18 | 00406dff | bellard | along with this program; if not, write to the Free Software
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19 | 00406dff | bellard | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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20 | 00406dff | bellard | */
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21 | 00406dff | bellard | |
22 | 00406dff | bellard | #include "fpa11.h" |
23 | 00406dff | bellard | #include "softfloat.h" |
24 | 00406dff | bellard | #include "fpopcode.h" |
25 | 00406dff | bellard | |
26 | 00406dff | bellard | floatx80 floatx80_exp(floatx80 Fm); |
27 | 00406dff | bellard | floatx80 floatx80_ln(floatx80 Fm); |
28 | 00406dff | bellard | floatx80 floatx80_sin(floatx80 rFm); |
29 | 00406dff | bellard | floatx80 floatx80_cos(floatx80 rFm); |
30 | 00406dff | bellard | floatx80 floatx80_arcsin(floatx80 rFm); |
31 | 00406dff | bellard | floatx80 floatx80_arctan(floatx80 rFm); |
32 | 00406dff | bellard | floatx80 floatx80_log(floatx80 rFm); |
33 | 00406dff | bellard | floatx80 floatx80_tan(floatx80 rFm); |
34 | 00406dff | bellard | floatx80 floatx80_arccos(floatx80 rFm); |
35 | 00406dff | bellard | floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm); |
36 | 00406dff | bellard | floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm); |
37 | 00406dff | bellard | |
38 | 00406dff | bellard | unsigned int ExtendedCPDO(const unsigned int opcode) |
39 | 00406dff | bellard | { |
40 | 00406dff | bellard | FPA11 *fpa11 = GET_FPA11(); |
41 | 00406dff | bellard | floatx80 rFm, rFn; |
42 | 00406dff | bellard | unsigned int Fd, Fm, Fn, nRc = 1; |
43 | 00406dff | bellard | |
44 | 00406dff | bellard | //printk("ExtendedCPDO(0x%08x)\n",opcode);
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45 | 00406dff | bellard | |
46 | 00406dff | bellard | Fm = getFm(opcode); |
47 | 00406dff | bellard | if (CONSTANT_FM(opcode))
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48 | 00406dff | bellard | { |
49 | 00406dff | bellard | rFm = getExtendedConstant(Fm); |
50 | 00406dff | bellard | } |
51 | 00406dff | bellard | else
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52 | 00406dff | bellard | { |
53 | 00406dff | bellard | switch (fpa11->fType[Fm])
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54 | 00406dff | bellard | { |
55 | 00406dff | bellard | case typeSingle:
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56 | 00406dff | bellard | rFm = float32_to_floatx80(fpa11->fpreg[Fm].fSingle); |
57 | 00406dff | bellard | break;
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58 | 00406dff | bellard | |
59 | 00406dff | bellard | case typeDouble:
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60 | 00406dff | bellard | rFm = float64_to_floatx80(fpa11->fpreg[Fm].fDouble); |
61 | 00406dff | bellard | break;
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62 | 00406dff | bellard | |
63 | 00406dff | bellard | case typeExtended:
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64 | 00406dff | bellard | rFm = fpa11->fpreg[Fm].fExtended; |
65 | 00406dff | bellard | break;
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66 | 00406dff | bellard | |
67 | 00406dff | bellard | default: return 0; |
68 | 00406dff | bellard | } |
69 | 00406dff | bellard | } |
70 | 00406dff | bellard | |
71 | 00406dff | bellard | if (!MONADIC_INSTRUCTION(opcode))
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72 | 00406dff | bellard | { |
73 | 00406dff | bellard | Fn = getFn(opcode); |
74 | 00406dff | bellard | switch (fpa11->fType[Fn])
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75 | 00406dff | bellard | { |
76 | 00406dff | bellard | case typeSingle:
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77 | 00406dff | bellard | rFn = float32_to_floatx80(fpa11->fpreg[Fn].fSingle); |
78 | 00406dff | bellard | break;
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79 | 00406dff | bellard | |
80 | 00406dff | bellard | case typeDouble:
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81 | 00406dff | bellard | rFn = float64_to_floatx80(fpa11->fpreg[Fn].fDouble); |
82 | 00406dff | bellard | break;
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83 | 00406dff | bellard | |
84 | 00406dff | bellard | case typeExtended:
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85 | 00406dff | bellard | rFn = fpa11->fpreg[Fn].fExtended; |
86 | 00406dff | bellard | break;
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87 | 00406dff | bellard | |
88 | 00406dff | bellard | default: return 0; |
89 | 00406dff | bellard | } |
90 | 00406dff | bellard | } |
91 | 00406dff | bellard | |
92 | 00406dff | bellard | Fd = getFd(opcode); |
93 | 00406dff | bellard | switch (opcode & MASK_ARITHMETIC_OPCODE)
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94 | 00406dff | bellard | { |
95 | 00406dff | bellard | /* dyadic opcodes */
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96 | 00406dff | bellard | case ADF_CODE:
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97 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_add(rFn,rFm); |
98 | 00406dff | bellard | break;
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99 | 00406dff | bellard | |
100 | 00406dff | bellard | case MUF_CODE:
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101 | 00406dff | bellard | case FML_CODE:
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102 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_mul(rFn,rFm); |
103 | 00406dff | bellard | break;
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104 | 00406dff | bellard | |
105 | 00406dff | bellard | case SUF_CODE:
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106 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_sub(rFn,rFm); |
107 | 00406dff | bellard | break;
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108 | 00406dff | bellard | |
109 | 00406dff | bellard | case RSF_CODE:
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110 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_sub(rFm,rFn); |
111 | 00406dff | bellard | break;
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112 | 00406dff | bellard | |
113 | 00406dff | bellard | case DVF_CODE:
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114 | 00406dff | bellard | case FDV_CODE:
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115 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_div(rFn,rFm); |
116 | 00406dff | bellard | break;
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117 | 00406dff | bellard | |
118 | 00406dff | bellard | case RDF_CODE:
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119 | 00406dff | bellard | case FRD_CODE:
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120 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_div(rFm,rFn); |
121 | 00406dff | bellard | break;
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122 | 00406dff | bellard | |
123 | 00406dff | bellard | #if 0
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124 | 00406dff | bellard | case POW_CODE:
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125 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_pow(rFn,rFm);
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126 | 00406dff | bellard | break;
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127 | 00406dff | bellard | |
128 | 00406dff | bellard | case RPW_CODE:
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129 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_pow(rFm,rFn);
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130 | 00406dff | bellard | break;
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131 | 00406dff | bellard | #endif
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132 | 00406dff | bellard | |
133 | 00406dff | bellard | case RMF_CODE:
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134 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_rem(rFn,rFm); |
135 | 00406dff | bellard | break;
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136 | 00406dff | bellard | |
137 | 00406dff | bellard | #if 0
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138 | 00406dff | bellard | case POL_CODE:
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139 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_pol(rFn,rFm);
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140 | 00406dff | bellard | break;
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141 | 00406dff | bellard | #endif
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142 | 00406dff | bellard | |
143 | 00406dff | bellard | /* monadic opcodes */
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144 | 00406dff | bellard | case MVF_CODE:
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145 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = rFm; |
146 | 00406dff | bellard | break;
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147 | 00406dff | bellard | |
148 | 00406dff | bellard | case MNF_CODE:
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149 | 00406dff | bellard | rFm.high ^= 0x8000;
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150 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = rFm; |
151 | 00406dff | bellard | break;
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152 | 00406dff | bellard | |
153 | 00406dff | bellard | case ABS_CODE:
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154 | 00406dff | bellard | rFm.high &= 0x7fff;
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155 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = rFm; |
156 | 00406dff | bellard | break;
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157 | 00406dff | bellard | |
158 | 00406dff | bellard | case RND_CODE:
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159 | 00406dff | bellard | case URD_CODE:
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160 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_round_to_int(rFm); |
161 | 00406dff | bellard | break;
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162 | 00406dff | bellard | |
163 | 00406dff | bellard | case SQT_CODE:
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164 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_sqrt(rFm); |
165 | 00406dff | bellard | break;
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166 | 00406dff | bellard | |
167 | 00406dff | bellard | #if 0
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168 | 00406dff | bellard | case LOG_CODE:
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169 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_log(rFm);
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170 | 00406dff | bellard | break;
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171 | 00406dff | bellard | |
172 | 00406dff | bellard | case LGN_CODE:
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173 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_ln(rFm);
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174 | 00406dff | bellard | break;
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175 | 00406dff | bellard | |
176 | 00406dff | bellard | case EXP_CODE:
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177 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_exp(rFm);
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178 | 00406dff | bellard | break;
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179 | 00406dff | bellard | |
180 | 00406dff | bellard | case SIN_CODE:
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181 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_sin(rFm);
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182 | 00406dff | bellard | break;
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183 | 00406dff | bellard | |
184 | 00406dff | bellard | case COS_CODE:
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185 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_cos(rFm);
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186 | 00406dff | bellard | break;
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187 | 00406dff | bellard | |
188 | 00406dff | bellard | case TAN_CODE:
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189 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_tan(rFm);
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190 | 00406dff | bellard | break;
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191 | 00406dff | bellard | |
192 | 00406dff | bellard | case ASN_CODE:
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193 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_arcsin(rFm);
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194 | 00406dff | bellard | break;
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195 | 00406dff | bellard | |
196 | 00406dff | bellard | case ACS_CODE:
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197 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_arccos(rFm);
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198 | 00406dff | bellard | break;
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199 | 00406dff | bellard | |
200 | 00406dff | bellard | case ATN_CODE:
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201 | 00406dff | bellard | fpa11->fpreg[Fd].fExtended = floatx80_arctan(rFm);
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202 | 00406dff | bellard | break;
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203 | 00406dff | bellard | #endif
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204 | 00406dff | bellard | |
205 | 00406dff | bellard | case NRM_CODE:
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206 | 00406dff | bellard | break;
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207 | 00406dff | bellard | |
208 | 00406dff | bellard | default:
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209 | 00406dff | bellard | { |
210 | 00406dff | bellard | nRc = 0;
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211 | 00406dff | bellard | } |
212 | 00406dff | bellard | } |
213 | 00406dff | bellard | |
214 | 00406dff | bellard | if (0 != nRc) fpa11->fType[Fd] = typeExtended; |
215 | 00406dff | bellard | return nRc;
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216 | 00406dff | bellard | } |
217 | 00406dff | bellard | |
218 | 00406dff | bellard | #if 0
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219 | 00406dff | bellard | floatx80 floatx80_exp(floatx80 Fm)
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220 | 00406dff | bellard | {
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221 | 00406dff | bellard | //series
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222 | 00406dff | bellard | }
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223 | 00406dff | bellard | |
224 | 00406dff | bellard | floatx80 floatx80_ln(floatx80 Fm)
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225 | 00406dff | bellard | {
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226 | 00406dff | bellard | //series
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227 | 00406dff | bellard | }
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228 | 00406dff | bellard | |
229 | 00406dff | bellard | floatx80 floatx80_sin(floatx80 rFm)
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230 | 00406dff | bellard | {
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231 | 00406dff | bellard | //series
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232 | 00406dff | bellard | }
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233 | 00406dff | bellard | |
234 | 00406dff | bellard | floatx80 floatx80_cos(floatx80 rFm)
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235 | 00406dff | bellard | {
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236 | 00406dff | bellard | //series
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237 | 00406dff | bellard | }
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238 | 00406dff | bellard | |
239 | 00406dff | bellard | floatx80 floatx80_arcsin(floatx80 rFm)
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240 | 00406dff | bellard | {
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241 | 00406dff | bellard | //series
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242 | 00406dff | bellard | }
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243 | 00406dff | bellard | |
244 | 00406dff | bellard | floatx80 floatx80_arctan(floatx80 rFm)
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245 | 00406dff | bellard | {
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246 | 00406dff | bellard | //series
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247 | 00406dff | bellard | }
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248 | 00406dff | bellard | |
249 | 00406dff | bellard | floatx80 floatx80_log(floatx80 rFm)
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250 | 00406dff | bellard | {
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251 | 00406dff | bellard | return floatx80_div(floatx80_ln(rFm),getExtendedConstant(7));
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252 | 00406dff | bellard | }
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253 | 00406dff | bellard | |
254 | 00406dff | bellard | floatx80 floatx80_tan(floatx80 rFm)
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255 | 00406dff | bellard | {
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256 | 00406dff | bellard | return floatx80_div(floatx80_sin(rFm),floatx80_cos(rFm));
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257 | 00406dff | bellard | }
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258 | 00406dff | bellard | |
259 | 00406dff | bellard | floatx80 floatx80_arccos(floatx80 rFm)
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260 | 00406dff | bellard | {
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261 | 00406dff | bellard | //return floatx80_sub(halfPi,floatx80_arcsin(rFm));
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262 | 00406dff | bellard | }
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263 | 00406dff | bellard | |
264 | 00406dff | bellard | floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm)
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265 | 00406dff | bellard | {
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266 | 00406dff | bellard | return floatx80_exp(floatx80_mul(rFm,floatx80_ln(rFn)));
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267 | 00406dff | bellard | }
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268 | 00406dff | bellard | |
269 | 00406dff | bellard | floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm)
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270 | 00406dff | bellard | {
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271 | 00406dff | bellard | return floatx80_arctan(floatx80_div(rFn,rFm));
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272 | 00406dff | bellard | }
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273 | 00406dff | bellard | #endif |