tmp105: Correct handling of temperature limit checks
[qemu.git] / linux-user / arm / nwfpe / extended_cpdo.c
1 /*
2 NetWinder Floating Point Emulator
3 (c) Rebel.COM, 1998,1999
4
5 Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "qemu/osdep.h"
22 #include "fpa11.h"
23 #include "fpu/softfloat.h"
24 #include "fpopcode.h"
25
26 floatx80 floatx80_exp(floatx80 Fm);
27 floatx80 floatx80_ln(floatx80 Fm);
28 floatx80 floatx80_sin(floatx80 rFm);
29 floatx80 floatx80_cos(floatx80 rFm);
30 floatx80 floatx80_arcsin(floatx80 rFm);
31 floatx80 floatx80_arctan(floatx80 rFm);
32 floatx80 floatx80_log(floatx80 rFm);
33 floatx80 floatx80_tan(floatx80 rFm);
34 floatx80 floatx80_arccos(floatx80 rFm);
35 floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm);
36 floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm);
37
38 unsigned int ExtendedCPDO(const unsigned int opcode)
39 {
40 FPA11 *fpa11 = GET_FPA11();
41 floatx80 rFm, rFn;
42 unsigned int Fd, Fm, Fn, nRc = 1;
43
44 //printk("ExtendedCPDO(0x%08x)\n",opcode);
45
46 Fm = getFm(opcode);
47 if (CONSTANT_FM(opcode))
48 {
49 rFm = getExtendedConstant(Fm);
50 }
51 else
52 {
53 switch (fpa11->fType[Fm])
54 {
55 case typeSingle:
56 rFm = float32_to_floatx80(fpa11->fpreg[Fm].fSingle, &fpa11->fp_status);
57 break;
58
59 case typeDouble:
60 rFm = float64_to_floatx80(fpa11->fpreg[Fm].fDouble, &fpa11->fp_status);
61 break;
62
63 case typeExtended:
64 rFm = fpa11->fpreg[Fm].fExtended;
65 break;
66
67 default: return 0;
68 }
69 }
70
71 if (!MONADIC_INSTRUCTION(opcode))
72 {
73 Fn = getFn(opcode);
74 switch (fpa11->fType[Fn])
75 {
76 case typeSingle:
77 rFn = float32_to_floatx80(fpa11->fpreg[Fn].fSingle, &fpa11->fp_status);
78 break;
79
80 case typeDouble:
81 rFn = float64_to_floatx80(fpa11->fpreg[Fn].fDouble, &fpa11->fp_status);
82 break;
83
84 case typeExtended:
85 rFn = fpa11->fpreg[Fn].fExtended;
86 break;
87
88 default: return 0;
89 }
90 }
91
92 Fd = getFd(opcode);
93 switch (opcode & MASK_ARITHMETIC_OPCODE)
94 {
95 /* dyadic opcodes */
96 case ADF_CODE:
97 fpa11->fpreg[Fd].fExtended = floatx80_add(rFn,rFm, &fpa11->fp_status);
98 break;
99
100 case MUF_CODE:
101 case FML_CODE:
102 fpa11->fpreg[Fd].fExtended = floatx80_mul(rFn,rFm, &fpa11->fp_status);
103 break;
104
105 case SUF_CODE:
106 fpa11->fpreg[Fd].fExtended = floatx80_sub(rFn,rFm, &fpa11->fp_status);
107 break;
108
109 case RSF_CODE:
110 fpa11->fpreg[Fd].fExtended = floatx80_sub(rFm,rFn, &fpa11->fp_status);
111 break;
112
113 case DVF_CODE:
114 case FDV_CODE:
115 fpa11->fpreg[Fd].fExtended = floatx80_div(rFn,rFm, &fpa11->fp_status);
116 break;
117
118 case RDF_CODE:
119 case FRD_CODE:
120 fpa11->fpreg[Fd].fExtended = floatx80_div(rFm,rFn, &fpa11->fp_status);
121 break;
122
123 #if 0
124 case POW_CODE:
125 fpa11->fpreg[Fd].fExtended = floatx80_pow(rFn,rFm);
126 break;
127
128 case RPW_CODE:
129 fpa11->fpreg[Fd].fExtended = floatx80_pow(rFm,rFn);
130 break;
131 #endif
132
133 case RMF_CODE:
134 fpa11->fpreg[Fd].fExtended = floatx80_rem(rFn,rFm, &fpa11->fp_status);
135 break;
136
137 #if 0
138 case POL_CODE:
139 fpa11->fpreg[Fd].fExtended = floatx80_pol(rFn,rFm);
140 break;
141 #endif
142
143 /* monadic opcodes */
144 case MVF_CODE:
145 fpa11->fpreg[Fd].fExtended = rFm;
146 break;
147
148 case MNF_CODE:
149 rFm.high ^= 0x8000;
150 fpa11->fpreg[Fd].fExtended = rFm;
151 break;
152
153 case ABS_CODE:
154 rFm.high &= 0x7fff;
155 fpa11->fpreg[Fd].fExtended = rFm;
156 break;
157
158 case RND_CODE:
159 case URD_CODE:
160 fpa11->fpreg[Fd].fExtended = floatx80_round_to_int(rFm, &fpa11->fp_status);
161 break;
162
163 case SQT_CODE:
164 fpa11->fpreg[Fd].fExtended = floatx80_sqrt(rFm, &fpa11->fp_status);
165 break;
166
167 #if 0
168 case LOG_CODE:
169 fpa11->fpreg[Fd].fExtended = floatx80_log(rFm);
170 break;
171
172 case LGN_CODE:
173 fpa11->fpreg[Fd].fExtended = floatx80_ln(rFm);
174 break;
175
176 case EXP_CODE:
177 fpa11->fpreg[Fd].fExtended = floatx80_exp(rFm);
178 break;
179
180 case SIN_CODE:
181 fpa11->fpreg[Fd].fExtended = floatx80_sin(rFm);
182 break;
183
184 case COS_CODE:
185 fpa11->fpreg[Fd].fExtended = floatx80_cos(rFm);
186 break;
187
188 case TAN_CODE:
189 fpa11->fpreg[Fd].fExtended = floatx80_tan(rFm);
190 break;
191
192 case ASN_CODE:
193 fpa11->fpreg[Fd].fExtended = floatx80_arcsin(rFm);
194 break;
195
196 case ACS_CODE:
197 fpa11->fpreg[Fd].fExtended = floatx80_arccos(rFm);
198 break;
199
200 case ATN_CODE:
201 fpa11->fpreg[Fd].fExtended = floatx80_arctan(rFm);
202 break;
203 #endif
204
205 case NRM_CODE:
206 break;
207
208 default:
209 {
210 nRc = 0;
211 }
212 }
213
214 if (0 != nRc) fpa11->fType[Fd] = typeExtended;
215 return nRc;
216 }
217
218 #if 0
219 floatx80 floatx80_exp(floatx80 Fm)
220 {
221 //series
222 }
223
224 floatx80 floatx80_ln(floatx80 Fm)
225 {
226 //series
227 }
228
229 floatx80 floatx80_sin(floatx80 rFm)
230 {
231 //series
232 }
233
234 floatx80 floatx80_cos(floatx80 rFm)
235 {
236 //series
237 }
238
239 floatx80 floatx80_arcsin(floatx80 rFm)
240 {
241 //series
242 }
243
244 floatx80 floatx80_arctan(floatx80 rFm)
245 {
246 //series
247 }
248
249 floatx80 floatx80_log(floatx80 rFm)
250 {
251 return floatx80_div(floatx80_ln(rFm),getExtendedConstant(7));
252 }
253
254 floatx80 floatx80_tan(floatx80 rFm)
255 {
256 return floatx80_div(floatx80_sin(rFm),floatx80_cos(rFm));
257 }
258
259 floatx80 floatx80_arccos(floatx80 rFm)
260 {
261 //return floatx80_sub(halfPi,floatx80_arcsin(rFm));
262 }
263
264 floatx80 floatx80_pow(floatx80 rFn,floatx80 rFm)
265 {
266 return floatx80_exp(floatx80_mul(rFm,floatx80_ln(rFn)));
267 }
268
269 floatx80 floatx80_pol(floatx80 rFn,floatx80 rFm)
270 {
271 return floatx80_arctan(floatx80_div(rFn,rFm));
272 }
273 #endif