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-rw-r--r--arch/arm26/nwfpe/double_cpdo.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/arch/arm26/nwfpe/double_cpdo.c b/arch/arm26/nwfpe/double_cpdo.c
deleted file mode 100644
index 7f4fef0216c7..000000000000
--- a/arch/arm26/nwfpe/double_cpdo.c
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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, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20*/
21
22#include "fpa11.h"
23#include "softfloat.h"
24#include "fpopcode.h"
25
26float64 float64_exp(float64 Fm);
27float64 float64_ln(float64 Fm);
28float64 float64_sin(float64 rFm);
29float64 float64_cos(float64 rFm);
30float64 float64_arcsin(float64 rFm);
31float64 float64_arctan(float64 rFm);
32float64 float64_log(float64 rFm);
33float64 float64_tan(float64 rFm);
34float64 float64_arccos(float64 rFm);
35float64 float64_pow(float64 rFn,float64 rFm);
36float64 float64_pol(float64 rFn,float64 rFm);
37
38unsigned int DoubleCPDO(const unsigned int opcode)
39{
40 FPA11 *fpa11 = GET_FPA11();
41 float64 rFm, rFn = 0; //FIXME - should be zero?
42 unsigned int Fd, Fm, Fn, nRc = 1;
43
44 //printk("DoubleCPDO(0x%08x)\n",opcode);
45
46 Fm = getFm(opcode);
47 if (CONSTANT_FM(opcode))
48 {
49 rFm = getDoubleConstant(Fm);
50 }
51 else
52 {
53 switch (fpa11->fType[Fm])
54 {
55 case typeSingle:
56 rFm = float32_to_float64(fpa11->fpreg[Fm].fSingle);
57 break;
58
59 case typeDouble:
60 rFm = fpa11->fpreg[Fm].fDouble;
61 break;
62
63 case typeExtended:
64 // !! patb
65 //printk("not implemented! why not?\n");
66 //!! ScottB
67 // should never get here, if extended involved
68 // then other operand should be promoted then
69 // ExtendedCPDO called.
70 break;
71
72 default: return 0;
73 }
74 }
75
76 if (!MONADIC_INSTRUCTION(opcode))
77 {
78 Fn = getFn(opcode);
79 switch (fpa11->fType[Fn])
80 {
81 case typeSingle:
82 rFn = float32_to_float64(fpa11->fpreg[Fn].fSingle);
83 break;
84
85 case typeDouble:
86 rFn = fpa11->fpreg[Fn].fDouble;
87 break;
88
89 default: return 0;
90 }
91 }
92
93 Fd = getFd(opcode);
94 /* !! this switch isn't optimized; better (opcode & MASK_ARITHMETIC_OPCODE)>>24, sort of */
95 switch (opcode & MASK_ARITHMETIC_OPCODE)
96 {
97 /* dyadic opcodes */
98 case ADF_CODE:
99 fpa11->fpreg[Fd].fDouble = float64_add(rFn,rFm);
100 break;
101
102 case MUF_CODE:
103 case FML_CODE:
104 fpa11->fpreg[Fd].fDouble = float64_mul(rFn,rFm);
105 break;
106
107 case SUF_CODE:
108 fpa11->fpreg[Fd].fDouble = float64_sub(rFn,rFm);
109 break;
110
111 case RSF_CODE:
112 fpa11->fpreg[Fd].fDouble = float64_sub(rFm,rFn);
113 break;
114
115 case DVF_CODE:
116 case FDV_CODE:
117 fpa11->fpreg[Fd].fDouble = float64_div(rFn,rFm);
118 break;
119
120 case RDF_CODE:
121 case FRD_CODE:
122 fpa11->fpreg[Fd].fDouble = float64_div(rFm,rFn);
123 break;
124
125#if 0
126 case POW_CODE:
127 fpa11->fpreg[Fd].fDouble = float64_pow(rFn,rFm);
128 break;
129
130 case RPW_CODE:
131 fpa11->fpreg[Fd].fDouble = float64_pow(rFm,rFn);
132 break;
133#endif
134
135 case RMF_CODE:
136 fpa11->fpreg[Fd].fDouble = float64_rem(rFn,rFm);
137 break;
138
139#if 0
140 case POL_CODE:
141 fpa11->fpreg[Fd].fDouble = float64_pol(rFn,rFm);
142 break;
143#endif
144
145 /* monadic opcodes */
146 case MVF_CODE:
147 fpa11->fpreg[Fd].fDouble = rFm;
148 break;
149
150 case MNF_CODE:
151 {
152 unsigned int *p = (unsigned int*)&rFm;
153 p[1] ^= 0x80000000;
154 fpa11->fpreg[Fd].fDouble = rFm;
155 }
156 break;
157
158 case ABS_CODE:
159 {
160 unsigned int *p = (unsigned int*)&rFm;
161 p[1] &= 0x7fffffff;
162 fpa11->fpreg[Fd].fDouble = rFm;
163 }
164 break;
165
166 case RND_CODE:
167 case URD_CODE:
168 fpa11->fpreg[Fd].fDouble = float64_round_to_int(rFm);
169 break;
170
171 case SQT_CODE:
172 fpa11->fpreg[Fd].fDouble = float64_sqrt(rFm);
173 break;
174
175#if 0
176 case LOG_CODE:
177 fpa11->fpreg[Fd].fDouble = float64_log(rFm);
178 break;
179
180 case LGN_CODE:
181 fpa11->fpreg[Fd].fDouble = float64_ln(rFm);
182 break;
183
184 case EXP_CODE:
185 fpa11->fpreg[Fd].fDouble = float64_exp(rFm);
186 break;
187
188 case SIN_CODE:
189 fpa11->fpreg[Fd].fDouble = float64_sin(rFm);
190 break;
191
192 case COS_CODE:
193 fpa11->fpreg[Fd].fDouble = float64_cos(rFm);
194 break;
195
196 case TAN_CODE:
197 fpa11->fpreg[Fd].fDouble = float64_tan(rFm);
198 break;
199
200 case ASN_CODE:
201 fpa11->fpreg[Fd].fDouble = float64_arcsin(rFm);
202 break;
203
204 case ACS_CODE:
205 fpa11->fpreg[Fd].fDouble = float64_arccos(rFm);
206 break;
207
208 case ATN_CODE:
209 fpa11->fpreg[Fd].fDouble = float64_arctan(rFm);
210 break;
211#endif
212
213 case NRM_CODE:
214 break;
215
216 default:
217 {
218 nRc = 0;
219 }
220 }
221
222 if (0 != nRc) fpa11->fType[Fd] = typeDouble;
223 return nRc;
224}
225
226#if 0
227float64 float64_exp(float64 rFm)
228{
229 return rFm;
230//series
231}
232
233float64 float64_ln(float64 rFm)
234{
235 return rFm;
236//series
237}
238
239float64 float64_sin(float64 rFm)
240{
241 return rFm;
242//series
243}
244
245float64 float64_cos(float64 rFm)
246{
247 return rFm;
248 //series
249}
250
251#if 0
252float64 float64_arcsin(float64 rFm)
253{
254//series
255}
256
257float64 float64_arctan(float64 rFm)
258{
259 //series
260}
261#endif
262
263float64 float64_log(float64 rFm)
264{
265 return float64_div(float64_ln(rFm),getDoubleConstant(7));
266}
267
268float64 float64_tan(float64 rFm)
269{
270 return float64_div(float64_sin(rFm),float64_cos(rFm));
271}
272
273float64 float64_arccos(float64 rFm)
274{
275return rFm;
276 //return float64_sub(halfPi,float64_arcsin(rFm));
277}
278
279float64 float64_pow(float64 rFn,float64 rFm)
280{
281 return float64_exp(float64_mul(rFm,float64_ln(rFn)));
282}
283
284float64 float64_pol(float64 rFn,float64 rFm)
285{
286 return float64_arctan(float64_div(rFn,rFm));
287}
288#endif
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