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20#include "qemu/osdep.h"
21#include "cpu.h"
22#include "exec/exec-all.h"
23#include "exec/helper-proto.h"
24#include "fpu/softfloat.h"
25
26#define QT0 (env->qt0)
27#define QT1 (env->qt1)
28
29static target_ulong do_check_ieee_exceptions(CPUSPARCState *env, uintptr_t ra)
30{
31 target_ulong status = get_float_exception_flags(&env->fp_status);
32 target_ulong fsr = env->fsr;
33
34 if (unlikely(status)) {
35
36 set_float_exception_flags(0, &env->fp_status);
37
38
39 if (status & float_flag_invalid) {
40 fsr |= FSR_NVC;
41 }
42 if (status & float_flag_overflow) {
43 fsr |= FSR_OFC;
44 }
45 if (status & float_flag_underflow) {
46 fsr |= FSR_UFC;
47 }
48 if (status & float_flag_divbyzero) {
49 fsr |= FSR_DZC;
50 }
51 if (status & float_flag_inexact) {
52 fsr |= FSR_NXC;
53 }
54
55 if ((fsr & FSR_CEXC_MASK) & ((fsr & FSR_TEM_MASK) >> 23)) {
56 CPUState *cs = env_cpu(env);
57
58
59
60
61
62 env->fsr = fsr | FSR_FTT_IEEE_EXCP;
63 cs->exception_index = TT_FP_EXCP;
64 cpu_loop_exit_restore(cs, ra);
65 } else {
66
67 fsr |= (fsr & FSR_CEXC_MASK) << 5;
68 }
69 }
70
71 return fsr;
72}
73
74target_ulong helper_check_ieee_exceptions(CPUSPARCState *env)
75{
76 return do_check_ieee_exceptions(env, GETPC());
77}
78
79#define F_HELPER(name, p) void helper_f##name##p(CPUSPARCState *env)
80
81#define F_BINOP(name) \
82 float32 helper_f ## name ## s (CPUSPARCState *env, float32 src1, \
83 float32 src2) \
84 { \
85 return float32_ ## name (src1, src2, &env->fp_status); \
86 } \
87 float64 helper_f ## name ## d (CPUSPARCState * env, float64 src1,\
88 float64 src2) \
89 { \
90 return float64_ ## name (src1, src2, &env->fp_status); \
91 } \
92 F_HELPER(name, q) \
93 { \
94 QT0 = float128_ ## name (QT0, QT1, &env->fp_status); \
95 }
96
97F_BINOP(add);
98F_BINOP(sub);
99F_BINOP(mul);
100F_BINOP(div);
101#undef F_BINOP
102
103float64 helper_fsmuld(CPUSPARCState *env, float32 src1, float32 src2)
104{
105 return float64_mul(float32_to_float64(src1, &env->fp_status),
106 float32_to_float64(src2, &env->fp_status),
107 &env->fp_status);
108}
109
110void helper_fdmulq(CPUSPARCState *env, float64 src1, float64 src2)
111{
112 QT0 = float128_mul(float64_to_float128(src1, &env->fp_status),
113 float64_to_float128(src2, &env->fp_status),
114 &env->fp_status);
115}
116
117float32 helper_fnegs(float32 src)
118{
119 return float32_chs(src);
120}
121
122#ifdef TARGET_SPARC64
123float64 helper_fnegd(float64 src)
124{
125 return float64_chs(src);
126}
127
128F_HELPER(neg, q)
129{
130 QT0 = float128_chs(QT1);
131}
132#endif
133
134
135float32 helper_fitos(CPUSPARCState *env, int32_t src)
136{
137 return int32_to_float32(src, &env->fp_status);
138}
139
140float64 helper_fitod(CPUSPARCState *env, int32_t src)
141{
142 return int32_to_float64(src, &env->fp_status);
143}
144
145void helper_fitoq(CPUSPARCState *env, int32_t src)
146{
147 QT0 = int32_to_float128(src, &env->fp_status);
148}
149
150#ifdef TARGET_SPARC64
151float32 helper_fxtos(CPUSPARCState *env, int64_t src)
152{
153 return int64_to_float32(src, &env->fp_status);
154}
155
156float64 helper_fxtod(CPUSPARCState *env, int64_t src)
157{
158 return int64_to_float64(src, &env->fp_status);
159}
160
161void helper_fxtoq(CPUSPARCState *env, int64_t src)
162{
163 QT0 = int64_to_float128(src, &env->fp_status);
164}
165#endif
166#undef F_HELPER
167
168
169float32 helper_fdtos(CPUSPARCState *env, float64 src)
170{
171 return float64_to_float32(src, &env->fp_status);
172}
173
174float64 helper_fstod(CPUSPARCState *env, float32 src)
175{
176 return float32_to_float64(src, &env->fp_status);
177}
178
179float32 helper_fqtos(CPUSPARCState *env)
180{
181 return float128_to_float32(QT1, &env->fp_status);
182}
183
184void helper_fstoq(CPUSPARCState *env, float32 src)
185{
186 QT0 = float32_to_float128(src, &env->fp_status);
187}
188
189float64 helper_fqtod(CPUSPARCState *env)
190{
191 return float128_to_float64(QT1, &env->fp_status);
192}
193
194void helper_fdtoq(CPUSPARCState *env, float64 src)
195{
196 QT0 = float64_to_float128(src, &env->fp_status);
197}
198
199
200int32_t helper_fstoi(CPUSPARCState *env, float32 src)
201{
202 return float32_to_int32_round_to_zero(src, &env->fp_status);
203}
204
205int32_t helper_fdtoi(CPUSPARCState *env, float64 src)
206{
207 return float64_to_int32_round_to_zero(src, &env->fp_status);
208}
209
210int32_t helper_fqtoi(CPUSPARCState *env)
211{
212 return float128_to_int32_round_to_zero(QT1, &env->fp_status);
213}
214
215#ifdef TARGET_SPARC64
216int64_t helper_fstox(CPUSPARCState *env, float32 src)
217{
218 return float32_to_int64_round_to_zero(src, &env->fp_status);
219}
220
221int64_t helper_fdtox(CPUSPARCState *env, float64 src)
222{
223 return float64_to_int64_round_to_zero(src, &env->fp_status);
224}
225
226int64_t helper_fqtox(CPUSPARCState *env)
227{
228 return float128_to_int64_round_to_zero(QT1, &env->fp_status);
229}
230#endif
231
232float32 helper_fabss(float32 src)
233{
234 return float32_abs(src);
235}
236
237#ifdef TARGET_SPARC64
238float64 helper_fabsd(float64 src)
239{
240 return float64_abs(src);
241}
242
243void helper_fabsq(CPUSPARCState *env)
244{
245 QT0 = float128_abs(QT1);
246}
247#endif
248
249float32 helper_fsqrts(CPUSPARCState *env, float32 src)
250{
251 return float32_sqrt(src, &env->fp_status);
252}
253
254float64 helper_fsqrtd(CPUSPARCState *env, float64 src)
255{
256 return float64_sqrt(src, &env->fp_status);
257}
258
259void helper_fsqrtq(CPUSPARCState *env)
260{
261 QT0 = float128_sqrt(QT1, &env->fp_status);
262}
263
264#define GEN_FCMP(name, size, reg1, reg2, FS, E) \
265 target_ulong glue(helper_, name) (CPUSPARCState *env) \
266 { \
267 FloatRelation ret; \
268 target_ulong fsr; \
269 if (E) { \
270 ret = glue(size, _compare)(reg1, reg2, &env->fp_status); \
271 } else { \
272 ret = glue(size, _compare_quiet)(reg1, reg2, \
273 &env->fp_status); \
274 } \
275 fsr = do_check_ieee_exceptions(env, GETPC()); \
276 switch (ret) { \
277 case float_relation_unordered: \
278 fsr |= (FSR_FCC1 | FSR_FCC0) << FS; \
279 fsr |= FSR_NVA; \
280 break; \
281 case float_relation_less: \
282 fsr &= ~(FSR_FCC1) << FS; \
283 fsr |= FSR_FCC0 << FS; \
284 break; \
285 case float_relation_greater: \
286 fsr &= ~(FSR_FCC0) << FS; \
287 fsr |= FSR_FCC1 << FS; \
288 break; \
289 default: \
290 fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
291 break; \
292 } \
293 return fsr; \
294 }
295#define GEN_FCMP_T(name, size, FS, E) \
296 target_ulong glue(helper_, name)(CPUSPARCState *env, size src1, size src2)\
297 { \
298 FloatRelation ret; \
299 target_ulong fsr; \
300 if (E) { \
301 ret = glue(size, _compare)(src1, src2, &env->fp_status); \
302 } else { \
303 ret = glue(size, _compare_quiet)(src1, src2, \
304 &env->fp_status); \
305 } \
306 fsr = do_check_ieee_exceptions(env, GETPC()); \
307 switch (ret) { \
308 case float_relation_unordered: \
309 fsr |= (FSR_FCC1 | FSR_FCC0) << FS; \
310 break; \
311 case float_relation_less: \
312 fsr &= ~(FSR_FCC1 << FS); \
313 fsr |= FSR_FCC0 << FS; \
314 break; \
315 case float_relation_greater: \
316 fsr &= ~(FSR_FCC0 << FS); \
317 fsr |= FSR_FCC1 << FS; \
318 break; \
319 default: \
320 fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
321 break; \
322 } \
323 return fsr; \
324 }
325
326GEN_FCMP_T(fcmps, float32, 0, 0);
327GEN_FCMP_T(fcmpd, float64, 0, 0);
328
329GEN_FCMP_T(fcmpes, float32, 0, 1);
330GEN_FCMP_T(fcmped, float64, 0, 1);
331
332GEN_FCMP(fcmpq, float128, QT0, QT1, 0, 0);
333GEN_FCMP(fcmpeq, float128, QT0, QT1, 0, 1);
334
335#ifdef TARGET_SPARC64
336GEN_FCMP_T(fcmps_fcc1, float32, 22, 0);
337GEN_FCMP_T(fcmpd_fcc1, float64, 22, 0);
338GEN_FCMP(fcmpq_fcc1, float128, QT0, QT1, 22, 0);
339
340GEN_FCMP_T(fcmps_fcc2, float32, 24, 0);
341GEN_FCMP_T(fcmpd_fcc2, float64, 24, 0);
342GEN_FCMP(fcmpq_fcc2, float128, QT0, QT1, 24, 0);
343
344GEN_FCMP_T(fcmps_fcc3, float32, 26, 0);
345GEN_FCMP_T(fcmpd_fcc3, float64, 26, 0);
346GEN_FCMP(fcmpq_fcc3, float128, QT0, QT1, 26, 0);
347
348GEN_FCMP_T(fcmpes_fcc1, float32, 22, 1);
349GEN_FCMP_T(fcmped_fcc1, float64, 22, 1);
350GEN_FCMP(fcmpeq_fcc1, float128, QT0, QT1, 22, 1);
351
352GEN_FCMP_T(fcmpes_fcc2, float32, 24, 1);
353GEN_FCMP_T(fcmped_fcc2, float64, 24, 1);
354GEN_FCMP(fcmpeq_fcc2, float128, QT0, QT1, 24, 1);
355
356GEN_FCMP_T(fcmpes_fcc3, float32, 26, 1);
357GEN_FCMP_T(fcmped_fcc3, float64, 26, 1);
358GEN_FCMP(fcmpeq_fcc3, float128, QT0, QT1, 26, 1);
359#endif
360#undef GEN_FCMP_T
361#undef GEN_FCMP
362
363static void set_fsr(CPUSPARCState *env, target_ulong fsr)
364{
365 int rnd_mode;
366
367 switch (fsr & FSR_RD_MASK) {
368 case FSR_RD_NEAREST:
369 rnd_mode = float_round_nearest_even;
370 break;
371 default:
372 case FSR_RD_ZERO:
373 rnd_mode = float_round_to_zero;
374 break;
375 case FSR_RD_POS:
376 rnd_mode = float_round_up;
377 break;
378 case FSR_RD_NEG:
379 rnd_mode = float_round_down;
380 break;
381 }
382 set_float_rounding_mode(rnd_mode, &env->fp_status);
383}
384
385target_ulong helper_ldfsr(CPUSPARCState *env, target_ulong old_fsr,
386 uint32_t new_fsr)
387{
388 old_fsr = (new_fsr & FSR_LDFSR_MASK) | (old_fsr & FSR_LDFSR_OLDMASK);
389 set_fsr(env, old_fsr);
390 return old_fsr;
391}
392
393#ifdef TARGET_SPARC64
394target_ulong helper_ldxfsr(CPUSPARCState *env, target_ulong old_fsr,
395 uint64_t new_fsr)
396{
397 old_fsr = (new_fsr & FSR_LDXFSR_MASK) | (old_fsr & FSR_LDXFSR_OLDMASK);
398 set_fsr(env, old_fsr);
399 return old_fsr;
400}
401#endif
402
