Commit | Line | Data |
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c906108c SS |
1 | /* Simulator for the Hitachi SH architecture. |
2 | ||
3 | Written by Steve Chamberlain of Cygnus Support. | |
4 | sac@cygnus.com | |
5 | ||
6 | This file is part of SH sim | |
7 | ||
8 | ||
9 | THIS SOFTWARE IS NOT COPYRIGHTED | |
10 | ||
11 | Cygnus offers the following for use in the public domain. Cygnus | |
12 | makes no warranty with regard to the software or it's performance | |
13 | and the user accepts the software "AS IS" with all faults. | |
14 | ||
15 | CYGNUS DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO | |
16 | THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
17 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | ||
19 | */ | |
20 | ||
21 | #include "config.h" | |
22 | ||
23 | #include <signal.h> | |
24 | #ifdef HAVE_UNISTD_H | |
25 | #include <unistd.h> | |
26 | #endif | |
27 | ||
28 | #include "sysdep.h" | |
29 | #include "bfd.h" | |
3c25f8c7 AC |
30 | #include "gdb/callback.h" |
31 | #include "gdb/remote-sim.h" | |
2f14585c | 32 | #include "gdb/sim-sh.h" |
c906108c SS |
33 | |
34 | /* This file is local - if newlib changes, then so should this. */ | |
35 | #include "syscall.h" | |
36 | ||
37 | #include <math.h> | |
38 | ||
39 | #ifdef _WIN32 | |
40 | #include <float.h> /* Needed for _isnan() */ | |
41 | #define isnan _isnan | |
42 | #endif | |
43 | ||
44 | #ifndef SIGBUS | |
45 | #define SIGBUS SIGSEGV | |
46 | #endif | |
47 | ||
48 | #ifndef SIGQUIT | |
49 | #define SIGQUIT SIGTERM | |
50 | #endif | |
51 | ||
52 | #ifndef SIGTRAP | |
53 | #define SIGTRAP 5 | |
54 | #endif | |
55 | ||
63978407 JR |
56 | extern unsigned char sh_jump_table[], sh_dsp_table[0x1000], ppi_table[]; |
57 | ||
de0492b6 AO |
58 | int sim_write (SIM_DESC sd, SIM_ADDR addr, unsigned char *buffer, int size); |
59 | ||
c906108c SS |
60 | #define O_RECOMPILE 85 |
61 | #define DEFINE_TABLE | |
62 | #define DISASSEMBLER_TABLE | |
63 | ||
7a292a7a SS |
64 | /* Define the rate at which the simulator should poll the host |
65 | for a quit. */ | |
66 | #define POLL_QUIT_INTERVAL 0x60000 | |
67 | ||
c906108c SS |
68 | typedef union |
69 | { | |
70 | ||
71 | struct | |
72 | { | |
c906108c SS |
73 | int regs[16]; |
74 | int pc; | |
c906108c | 75 | |
63978407 JR |
76 | /* System registers. For sh-dsp this also includes A0 / X0 / X1 / Y0 / Y1 |
77 | which are located in fregs, i.e. strictly speaking, these are | |
78 | out-of-bounds accesses of sregs.i . This wart of the code could be | |
79 | fixed by making fregs part of sregs, and including pc too - to avoid | |
80 | alignment repercussions - but this would cause very onerous union / | |
81 | structure nesting, which would only be managable with anonymous | |
82 | unions and structs. */ | |
83 | union | |
84 | { | |
85 | struct | |
86 | { | |
87 | int mach; | |
88 | int macl; | |
89 | int pr; | |
90 | int dummy3, dummy4; | |
91 | int fpul; /* A1 for sh-dsp - but only for movs etc. */ | |
92 | int fpscr; /* dsr for sh-dsp */ | |
93 | } named; | |
94 | int i[7]; | |
95 | } sregs; | |
96 | ||
97 | /* sh3e / sh-dsp */ | |
c906108c SS |
98 | union fregs_u |
99 | { | |
100 | float f[16]; | |
101 | double d[8]; | |
102 | int i[16]; | |
103 | } | |
7a292a7a | 104 | fregs[2]; |
c906108c | 105 | |
63978407 JR |
106 | /* Control registers; on the SH4, ldc / stc is privileged, except when |
107 | accessing gbr. */ | |
108 | union | |
109 | { | |
110 | struct | |
111 | { | |
112 | int sr; | |
113 | int gbr; | |
114 | int vbr; | |
115 | int ssr; | |
116 | int spc; | |
117 | int mod; | |
118 | /* sh-dsp */ | |
119 | int rs; | |
120 | int re; | |
121 | /* sh3 */ | |
122 | int bank[8]; | |
123 | } named; | |
124 | int i[16]; | |
125 | } cregs; | |
126 | ||
127 | unsigned char *insn_end; | |
c906108c SS |
128 | |
129 | int ticks; | |
130 | int stalls; | |
131 | int memstalls; | |
132 | int cycles; | |
133 | int insts; | |
134 | ||
135 | int prevlock; | |
136 | int thislock; | |
137 | int exception; | |
138 | ||
139 | int end_of_registers; | |
140 | ||
141 | int msize; | |
142 | #define PROFILE_FREQ 1 | |
143 | #define PROFILE_SHIFT 2 | |
144 | int profile; | |
145 | unsigned short *profile_hist; | |
146 | unsigned char *memory; | |
63978407 JR |
147 | int xyram_select, xram_start, yram_start; |
148 | unsigned char *xmem; | |
149 | unsigned char *ymem; | |
150 | unsigned char *xmem_offset; | |
151 | unsigned char *ymem_offset; | |
c906108c SS |
152 | } |
153 | asregs; | |
154 | int asints[40]; | |
155 | } saved_state_type; | |
156 | ||
157 | saved_state_type saved_state; | |
158 | ||
63978407 | 159 | struct loop_bounds { unsigned char *start, *end; }; |
c906108c SS |
160 | |
161 | /* These variables are at file scope so that functions other than | |
162 | sim_resume can use the fetch/store macros */ | |
163 | ||
164 | static int target_little_endian; | |
63978407 JR |
165 | static int global_endianw, endianb; |
166 | static int target_dsp; | |
c906108c | 167 | static int host_little_endian; |
de0492b6 | 168 | static char **prog_argv; |
c906108c SS |
169 | |
170 | #if 1 | |
63978407 | 171 | static int maskw = 0; |
d1789ace | 172 | static int maskl = 0; |
c906108c SS |
173 | #endif |
174 | ||
175 | static SIM_OPEN_KIND sim_kind; | |
176 | static char *myname; | |
177 | ||
178 | ||
179 | /* Short hand definitions of the registers */ | |
180 | ||
181 | #define SBIT(x) ((x)&sbit) | |
182 | #define R0 saved_state.asregs.regs[0] | |
183 | #define Rn saved_state.asregs.regs[n] | |
184 | #define Rm saved_state.asregs.regs[m] | |
185 | #define UR0 (unsigned int)(saved_state.asregs.regs[0]) | |
186 | #define UR (unsigned int)R | |
187 | #define UR (unsigned int)R | |
188 | #define SR0 saved_state.asregs.regs[0] | |
63978407 JR |
189 | #define CREG(n) (saved_state.asregs.cregs.i[(n)]) |
190 | #define GBR saved_state.asregs.cregs.named.gbr | |
191 | #define VBR saved_state.asregs.cregs.named.vbr | |
192 | #define SSR saved_state.asregs.cregs.named.ssr | |
193 | #define SPC saved_state.asregs.cregs.named.spc | |
194 | #define SREG(n) (saved_state.asregs.sregs.i[(n)]) | |
195 | #define MACH saved_state.asregs.sregs.named.mach | |
196 | #define MACL saved_state.asregs.sregs.named.macl | |
197 | #define PR saved_state.asregs.sregs.named.pr | |
198 | #define FPUL saved_state.asregs.sregs.named.fpul | |
c906108c | 199 | |
63978407 | 200 | #define PC insn_ptr |
c906108c SS |
201 | |
202 | ||
203 | ||
63978407 | 204 | /* Alternate bank of registers r0-r7 */ |
c906108c SS |
205 | |
206 | /* Note: code controling SR handles flips between BANK0 and BANK1 */ | |
63978407 JR |
207 | #define Rn_BANK(n) (saved_state.asregs.cregs.named.bank[(n)]) |
208 | #define SET_Rn_BANK(n, EXP) do { saved_state.asregs.cregs.named.bank[(n)] = (EXP); } while (0) | |
c906108c SS |
209 | |
210 | ||
211 | /* Manipulate SR */ | |
212 | ||
63978407 JR |
213 | #define SR_MASK_DMY (1 << 11) |
214 | #define SR_MASK_DMX (1 << 10) | |
c906108c SS |
215 | #define SR_MASK_M (1 << 9) |
216 | #define SR_MASK_Q (1 << 8) | |
217 | #define SR_MASK_I (0xf << 4) | |
218 | #define SR_MASK_S (1 << 1) | |
219 | #define SR_MASK_T (1 << 0) | |
220 | ||
221 | #define SR_MASK_BL (1 << 28) | |
222 | #define SR_MASK_RB (1 << 29) | |
223 | #define SR_MASK_MD (1 << 30) | |
63978407 JR |
224 | #define SR_MASK_RC 0x0fff0000 |
225 | #define SR_RC_INCREMENT -0x00010000 | |
c906108c | 226 | |
63978407 JR |
227 | #define M ((saved_state.asregs.cregs.named.sr & SR_MASK_M) != 0) |
228 | #define Q ((saved_state.asregs.cregs.named.sr & SR_MASK_Q) != 0) | |
229 | #define S ((saved_state.asregs.cregs.named.sr & SR_MASK_S) != 0) | |
230 | #define T ((saved_state.asregs.cregs.named.sr & SR_MASK_T) != 0) | |
c906108c | 231 | |
63978407 JR |
232 | #define SR_BL ((saved_state.asregs.cregs.named.sr & SR_MASK_BL) != 0) |
233 | #define SR_RB ((saved_state.asregs.cregs.named.sr & SR_MASK_RB) != 0) | |
234 | #define SR_MD ((saved_state.asregs.cregs.named.sr & SR_MASK_MD) != 0) | |
235 | #define SR_DMY ((saved_state.asregs.cregs.named.sr & SR_MASK_DMY) != 0) | |
236 | #define SR_DMX ((saved_state.asregs.cregs.named.sr & SR_MASK_DMX) != 0) | |
237 | #define SR_RC ((saved_state.asregs.cregs.named.sr & SR_MASK_RC)) | |
c906108c SS |
238 | |
239 | /* Note: don't use this for privileged bits */ | |
240 | #define SET_SR_BIT(EXP, BIT) \ | |
241 | do { \ | |
242 | if ((EXP) & 1) \ | |
63978407 | 243 | saved_state.asregs.cregs.named.sr |= (BIT); \ |
c906108c | 244 | else \ |
63978407 | 245 | saved_state.asregs.cregs.named.sr &= ~(BIT); \ |
c906108c SS |
246 | } while (0) |
247 | ||
248 | #define SET_SR_M(EXP) SET_SR_BIT ((EXP), SR_MASK_M) | |
249 | #define SET_SR_Q(EXP) SET_SR_BIT ((EXP), SR_MASK_Q) | |
250 | #define SET_SR_S(EXP) SET_SR_BIT ((EXP), SR_MASK_S) | |
251 | #define SET_SR_T(EXP) SET_SR_BIT ((EXP), SR_MASK_T) | |
252 | ||
63978407 JR |
253 | /* stc currently relies on being able to read SR without modifications. */ |
254 | #define GET_SR() (saved_state.asregs.cregs.named.sr - 0) | |
255 | ||
c906108c | 256 | #define SET_SR(x) set_sr (x) |
c906108c | 257 | |
63978407 JR |
258 | #define SET_RC(x) \ |
259 | (saved_state.asregs.cregs.named.sr \ | |
260 | = saved_state.asregs.cregs.named.sr & 0xf000ffff | ((x) & 0xfff) << 16) | |
c906108c SS |
261 | |
262 | /* Manipulate FPSCR */ | |
263 | ||
7a292a7a SS |
264 | #define FPSCR_MASK_FR (1 << 21) |
265 | #define FPSCR_MASK_SZ (1 << 20) | |
266 | #define FPSCR_MASK_PR (1 << 19) | |
267 | ||
268 | #define FPSCR_FR ((GET_FPSCR() & FPSCR_MASK_FR) != 0) | |
269 | #define FPSCR_SZ ((GET_FPSCR() & FPSCR_MASK_SZ) != 0) | |
270 | #define FPSCR_PR ((GET_FPSCR() & FPSCR_MASK_PR) != 0) | |
271 | ||
de0492b6 AO |
272 | /* Count the number of arguments in an argv. */ |
273 | static int | |
274 | count_argc (char **argv) | |
275 | { | |
276 | int i; | |
277 | ||
278 | if (! argv) | |
279 | return -1; | |
280 | ||
281 | for (i = 0; argv[i] != NULL; ++i) | |
282 | continue; | |
283 | return i; | |
284 | } | |
285 | ||
7a292a7a SS |
286 | static void |
287 | set_fpscr1 (x) | |
288 | int x; | |
289 | { | |
63978407 JR |
290 | int old = saved_state.asregs.sregs.named.fpscr; |
291 | saved_state.asregs.sregs.named.fpscr = (x); | |
7a292a7a | 292 | /* swap the floating point register banks */ |
63978407 JR |
293 | if ((saved_state.asregs.sregs.named.fpscr ^ old) & FPSCR_MASK_FR |
294 | /* Ignore bit change if simulating sh-dsp. */ | |
295 | && ! target_dsp) | |
7a292a7a SS |
296 | { |
297 | union fregs_u tmpf = saved_state.asregs.fregs[0]; | |
298 | saved_state.asregs.fregs[0] = saved_state.asregs.fregs[1]; | |
299 | saved_state.asregs.fregs[1] = tmpf; | |
300 | } | |
301 | } | |
302 | ||
63978407 JR |
303 | /* sts relies on being able to read fpscr directly. */ |
304 | #define GET_FPSCR() (saved_state.asregs.sregs.named.fpscr) | |
7a292a7a SS |
305 | #define SET_FPSCR(x) \ |
306 | do { \ | |
307 | set_fpscr1 (x); \ | |
308 | } while (0) | |
c906108c | 309 | |
63978407 | 310 | #define DSR (saved_state.asregs.sregs.named.fpscr) |
c906108c SS |
311 | |
312 | int | |
313 | fail () | |
314 | { | |
315 | abort (); | |
316 | } | |
317 | ||
63978407 JR |
318 | #define RAISE_EXCEPTION(x) \ |
319 | (saved_state.asregs.exception = x, saved_state.asregs.insn_end = 0) | |
7a292a7a | 320 | |
63978407 | 321 | /* This function exists mainly for the purpose of setting a breakpoint to |
c906108c SS |
322 | catch simulated bus errors when running the simulator under GDB. */ |
323 | ||
324 | void | |
63978407 JR |
325 | raise_exception (x) |
326 | int x; | |
327 | { | |
328 | RAISE_EXCEPTION(x); | |
329 | } | |
330 | ||
331 | void | |
332 | raise_buserror () | |
c906108c | 333 | { |
63978407 | 334 | raise_exception (SIGBUS); |
c906108c SS |
335 | } |
336 | ||
63978407 JR |
337 | #define PROCESS_SPECIAL_ADDRESS(addr, endian, ptr, bits_written, \ |
338 | forbidden_addr_bits, data, retval) \ | |
339 | do { \ | |
340 | if (addr & forbidden_addr_bits) \ | |
341 | { \ | |
342 | raise_buserror (); \ | |
343 | return retval; \ | |
344 | } \ | |
345 | else if ((addr & saved_state.asregs.xyram_select) \ | |
346 | == saved_state.asregs.xram_start) \ | |
347 | ptr = (void *) &saved_state.asregs.xmem_offset[addr ^ endian]; \ | |
348 | else if ((addr & saved_state.asregs.xyram_select) \ | |
349 | == saved_state.asregs.yram_start) \ | |
350 | ptr = (void *) &saved_state.asregs.ymem_offset[addr ^ endian]; \ | |
351 | else if ((unsigned) addr >> 24 == 0xf0 \ | |
352 | && bits_written == 32 && (data & 1) == 0) \ | |
353 | /* This invalidates (if not associative) or might invalidate \ | |
354 | (if associative) an instruction cache line. This is used for \ | |
355 | trampolines. Since we don't simulate the cache, this is a no-op \ | |
356 | as far as the simulator is concerned. */ \ | |
357 | return retval; \ | |
358 | else \ | |
359 | { \ | |
360 | if (bits_written == 8 && addr > 0x5000000) \ | |
361 | IOMEM (addr, 1, data); \ | |
362 | /* We can't do anything useful with the other stuff, so fail. */ \ | |
363 | raise_buserror (); \ | |
364 | return retval; \ | |
365 | } \ | |
366 | } while (0) | |
367 | ||
c906108c SS |
368 | /* FIXME: sim_resume should be renamed to sim_engine_run. sim_resume |
369 | being implemented by ../common/sim_resume.c and the below should | |
370 | make a call to sim_engine_halt */ | |
371 | ||
63978407 JR |
372 | #define BUSERROR(addr, mask) ((addr) & (mask)) |
373 | ||
374 | #define WRITE_BUSERROR(addr, mask, data, addr_func) \ | |
375 | do \ | |
7a292a7a | 376 | { \ |
63978407 JR |
377 | if (addr & mask) \ |
378 | { \ | |
379 | addr_func (addr, data); \ | |
380 | return; \ | |
381 | } \ | |
382 | } \ | |
383 | while (0) | |
384 | ||
385 | #define READ_BUSERROR(addr, mask, addr_func) \ | |
386 | do \ | |
387 | { \ | |
388 | if (addr & mask) \ | |
389 | return addr_func (addr); \ | |
390 | } \ | |
391 | while (0) | |
c906108c SS |
392 | |
393 | /* Define this to enable register lifetime checking. | |
394 | The compiler generates "add #0,rn" insns to mark registers as invalid, | |
395 | the simulator uses this info to call fail if it finds a ref to an invalid | |
396 | register before a def | |
397 | ||
398 | #define PARANOID | |
399 | */ | |
400 | ||
401 | #ifdef PARANOID | |
402 | int valid[16]; | |
403 | #define CREF(x) if(!valid[x]) fail(); | |
404 | #define CDEF(x) valid[x] = 1; | |
405 | #define UNDEF(x) valid[x] = 0; | |
406 | #else | |
407 | #define CREF(x) | |
408 | #define CDEF(x) | |
409 | #define UNDEF(x) | |
410 | #endif | |
411 | ||
412 | static void parse_and_set_memory_size PARAMS ((char *str)); | |
c906108c | 413 | static int IOMEM PARAMS ((int addr, int write, int value)); |
63978407 JR |
414 | static struct loop_bounds get_loop_bounds PARAMS((int, int, unsigned char *, |
415 | unsigned char *, int, int)); | |
416 | static void process_wlat_addr PARAMS((int, int)); | |
417 | static void process_wwat_addr PARAMS((int, int)); | |
418 | static void process_wbat_addr PARAMS((int, int)); | |
419 | static int process_rlat_addr PARAMS((int)); | |
420 | static int process_rwat_addr PARAMS((int)); | |
421 | static int process_rbat_addr PARAMS((int)); | |
422 | static void INLINE wlat_fast PARAMS ((unsigned char *, int, int, int)); | |
423 | static void INLINE wwat_fast PARAMS ((unsigned char *, int, int, int, int)); | |
424 | static void INLINE wbat_fast PARAMS ((unsigned char *, int, int, int)); | |
425 | static int INLINE rlat_fast PARAMS ((unsigned char *, int, int)); | |
426 | static int INLINE rwat_fast PARAMS ((unsigned char *, int, int, int)); | |
427 | static int INLINE rbat_fast PARAMS ((unsigned char *, int, int)); | |
c906108c SS |
428 | |
429 | static host_callback *callback; | |
430 | ||
431 | ||
432 | ||
433 | /* Floating point registers */ | |
434 | ||
7a292a7a SS |
435 | #define DR(n) (get_dr (n)) |
436 | static double | |
437 | get_dr (n) | |
438 | int n; | |
439 | { | |
440 | n = (n & ~1); | |
441 | if (host_little_endian) | |
442 | { | |
443 | union | |
444 | { | |
445 | int i[2]; | |
446 | double d; | |
447 | } dr; | |
448 | dr.i[1] = saved_state.asregs.fregs[0].i[n + 0]; | |
449 | dr.i[0] = saved_state.asregs.fregs[0].i[n + 1]; | |
450 | return dr.d; | |
451 | } | |
452 | else | |
453 | return (saved_state.asregs.fregs[0].d[n >> 1]); | |
454 | } | |
455 | ||
456 | #define SET_DR(n, EXP) set_dr ((n), (EXP)) | |
457 | static void | |
458 | set_dr (n, exp) | |
459 | int n; | |
460 | double exp; | |
461 | { | |
462 | n = (n & ~1); | |
463 | if (host_little_endian) | |
464 | { | |
465 | union | |
466 | { | |
467 | int i[2]; | |
468 | double d; | |
469 | } dr; | |
470 | dr.d = exp; | |
471 | saved_state.asregs.fregs[0].i[n + 0] = dr.i[1]; | |
472 | saved_state.asregs.fregs[0].i[n + 1] = dr.i[0]; | |
473 | } | |
474 | else | |
475 | saved_state.asregs.fregs[0].d[n >> 1] = exp; | |
476 | } | |
477 | ||
478 | #define SET_FI(n,EXP) (saved_state.asregs.fregs[0].i[(n)] = (EXP)) | |
479 | #define FI(n) (saved_state.asregs.fregs[0].i[(n)]) | |
c906108c | 480 | |
7a292a7a SS |
481 | #define FR(n) (saved_state.asregs.fregs[0].f[(n)]) |
482 | #define SET_FR(n,EXP) (saved_state.asregs.fregs[0].f[(n)] = (EXP)) | |
c906108c | 483 | |
7a292a7a SS |
484 | #define XD_TO_XF(n) ((((n) & 1) << 5) | ((n) & 0x1e)) |
485 | #define XF(n) (saved_state.asregs.fregs[(n) >> 5].i[(n) & 0x1f]) | |
486 | #define SET_XF(n,EXP) (saved_state.asregs.fregs[(n) >> 5].i[(n) & 0x1f] = (EXP)) | |
487 | ||
63978407 JR |
488 | #define RS saved_state.asregs.cregs.named.rs |
489 | #define RE saved_state.asregs.cregs.named.re | |
490 | #define MOD (saved_state.asregs.cregs.named.mod) | |
491 | #define SET_MOD(i) \ | |
492 | (MOD = (i), \ | |
493 | MOD_ME = (unsigned) MOD >> 16 | (SR_DMY ? ~0xffff : (SR_DMX ? 0 : 0x10000)), \ | |
494 | MOD_DELTA = (MOD & 0xffff) - ((unsigned) MOD >> 16)) | |
495 | ||
496 | #define DSP_R(n) saved_state.asregs.sregs.i[(n)] | |
497 | #define DSP_GRD(n) DSP_R ((n) + 8) | |
498 | #define GET_DSP_GRD(n) ((n | 2) == 7 ? SEXT (DSP_GRD (n)) : SIGN32 (DSP_R (n))) | |
499 | #define A1 DSP_R (5) | |
500 | #define A0 DSP_R (7) | |
501 | #define X0 DSP_R (8) | |
502 | #define X1 DSP_R (9) | |
503 | #define Y0 DSP_R (10) | |
504 | #define Y1 DSP_R (11) | |
505 | #define M0 DSP_R (12) | |
506 | #define A1G DSP_R (13) | |
507 | #define M1 DSP_R (14) | |
508 | #define A0G DSP_R (15) | |
509 | /* DSP_R (16) / DSP_GRD (16) are used as a fake destination for pcmp. */ | |
510 | #define MOD_ME DSP_GRD (17) | |
511 | #define MOD_DELTA DSP_GRD (18) | |
7a292a7a SS |
512 | |
513 | #define FP_OP(n, OP, m) \ | |
514 | { \ | |
515 | if (FPSCR_PR) \ | |
516 | { \ | |
517 | if (((n) & 1) || ((m) & 1)) \ | |
63978407 | 518 | RAISE_EXCEPTION (SIGILL); \ |
7a292a7a SS |
519 | else \ |
520 | SET_DR(n, (DR(n) OP DR(m))); \ | |
521 | } \ | |
522 | else \ | |
523 | SET_FR(n, (FR(n) OP FR(m))); \ | |
524 | } while (0) | |
525 | ||
526 | #define FP_UNARY(n, OP) \ | |
527 | { \ | |
528 | if (FPSCR_PR) \ | |
529 | { \ | |
530 | if ((n) & 1) \ | |
63978407 | 531 | RAISE_EXCEPTION (SIGILL); \ |
7a292a7a SS |
532 | else \ |
533 | SET_DR(n, (OP (DR(n)))); \ | |
534 | } \ | |
535 | else \ | |
536 | SET_FR(n, (OP (FR(n)))); \ | |
537 | } while (0) | |
538 | ||
539 | #define FP_CMP(n, OP, m) \ | |
540 | { \ | |
541 | if (FPSCR_PR) \ | |
542 | { \ | |
543 | if (((n) & 1) || ((m) & 1)) \ | |
63978407 | 544 | RAISE_EXCEPTION (SIGILL); \ |
7a292a7a SS |
545 | else \ |
546 | SET_SR_T (DR(n) OP DR(m)); \ | |
547 | } \ | |
548 | else \ | |
549 | SET_SR_T (FR(n) OP FR(m)); \ | |
550 | } while (0) | |
c906108c | 551 | |
63978407 JR |
552 | static void |
553 | set_sr (new_sr) | |
554 | int new_sr; | |
c906108c | 555 | { |
63978407 JR |
556 | /* do we need to swap banks */ |
557 | int old_gpr = SR_MD && SR_RB; | |
558 | int new_gpr = (new_sr & SR_MASK_MD) && (new_sr & SR_MASK_RB); | |
559 | if (old_gpr != new_gpr) | |
560 | { | |
561 | int i, tmp; | |
562 | for (i = 0; i < 8; i++) | |
563 | { | |
564 | tmp = saved_state.asregs.cregs.named.bank[i]; | |
565 | saved_state.asregs.cregs.named.bank[i] = saved_state.asregs.regs[i]; | |
566 | saved_state.asregs.regs[i] = tmp; | |
567 | } | |
568 | } | |
569 | saved_state.asregs.cregs.named.sr = new_sr; | |
570 | SET_MOD (MOD); | |
c906108c SS |
571 | } |
572 | ||
573 | static void INLINE | |
63978407 | 574 | wlat_fast (memory, x, value, maskl) |
c906108c SS |
575 | unsigned char *memory; |
576 | { | |
577 | int v = value; | |
63978407 JR |
578 | unsigned int *p = (unsigned int *)(memory + x); |
579 | WRITE_BUSERROR (x, maskl, v, process_wlat_addr); | |
580 | *p = v; | |
c906108c SS |
581 | } |
582 | ||
583 | static void INLINE | |
63978407 | 584 | wwat_fast (memory, x, value, maskw, endianw) |
c906108c SS |
585 | unsigned char *memory; |
586 | { | |
587 | int v = value; | |
63978407 JR |
588 | unsigned short *p = (unsigned short *)(memory + (x ^ endianw)); |
589 | WRITE_BUSERROR (x, maskw, v, process_wwat_addr); | |
590 | *p = v; | |
c906108c SS |
591 | } |
592 | ||
593 | static void INLINE | |
63978407 | 594 | wbat_fast (memory, x, value, maskb) |
c906108c SS |
595 | unsigned char *memory; |
596 | { | |
63978407 JR |
597 | unsigned char *p = memory + (x ^ endianb); |
598 | WRITE_BUSERROR (x, maskb, value, process_wbat_addr); | |
c906108c | 599 | |
c906108c SS |
600 | p[0] = value; |
601 | } | |
602 | ||
603 | /* Read functions */ | |
604 | ||
605 | static int INLINE | |
63978407 | 606 | rlat_fast (memory, x, maskl) |
c906108c SS |
607 | unsigned char *memory; |
608 | { | |
63978407 JR |
609 | unsigned int *p = (unsigned int *)(memory + x); |
610 | READ_BUSERROR (x, maskl, process_rlat_addr); | |
c906108c | 611 | |
63978407 | 612 | return *p; |
c906108c SS |
613 | } |
614 | ||
615 | static int INLINE | |
63978407 | 616 | rwat_fast (memory, x, maskw, endianw) |
c906108c | 617 | unsigned char *memory; |
63978407 | 618 | int x, maskw, endianw; |
c906108c | 619 | { |
63978407 JR |
620 | unsigned short *p = (unsigned short *)(memory + (x ^ endianw)); |
621 | READ_BUSERROR (x, maskw, process_rwat_addr); | |
c906108c | 622 | |
63978407 | 623 | return *p; |
c906108c SS |
624 | } |
625 | ||
626 | static int INLINE | |
63978407 JR |
627 | riat_fast (insn_ptr, endianw) |
628 | unsigned char *insn_ptr; | |
c906108c | 629 | { |
63978407 | 630 | unsigned short *p = (unsigned short *)((size_t) insn_ptr ^ endianw); |
c906108c | 631 | |
63978407 | 632 | return *p; |
c906108c SS |
633 | } |
634 | ||
635 | static int INLINE | |
63978407 | 636 | rbat_fast (memory, x, maskb) |
c906108c SS |
637 | unsigned char *memory; |
638 | { | |
63978407 JR |
639 | unsigned char *p = memory + (x ^ endianb); |
640 | READ_BUSERROR (x, maskb, process_rbat_addr); | |
c906108c | 641 | |
63978407 | 642 | return *p; |
c906108c SS |
643 | } |
644 | ||
63978407 JR |
645 | #define RWAT(x) (rwat_fast (memory, x, maskw, endianw)) |
646 | #define RLAT(x) (rlat_fast (memory, x, maskl)) | |
647 | #define RBAT(x) (rbat_fast (memory, x, maskb)) | |
648 | #define RIAT(p) (riat_fast ((p), endianw)) | |
649 | #define WWAT(x,v) (wwat_fast (memory, x, v, maskw, endianw)) | |
650 | #define WLAT(x,v) (wlat_fast (memory, x, v, maskl)) | |
651 | #define WBAT(x,v) (wbat_fast (memory, x, v, maskb)) | |
c906108c SS |
652 | |
653 | #define RUWAT(x) (RWAT(x) & 0xffff) | |
654 | #define RSWAT(x) ((short)(RWAT(x))) | |
d1789ace | 655 | #define RSLAT(x) ((long)(RLAT(x))) |
c906108c SS |
656 | #define RSBAT(x) (SEXT(RBAT(x))) |
657 | ||
63978407 | 658 | #define RDAT(x, n) (do_rdat (memory, (x), (n), (maskl))) |
7a292a7a | 659 | static int |
63978407 | 660 | do_rdat (memory, x, n, maskl) |
7a292a7a SS |
661 | char *memory; |
662 | int x; | |
663 | int n; | |
63978407 | 664 | int maskl; |
7a292a7a SS |
665 | { |
666 | int f0; | |
667 | int f1; | |
668 | int i = (n & 1); | |
669 | int j = (n & ~1); | |
63978407 JR |
670 | f0 = rlat_fast (memory, x + 0, maskl); |
671 | f1 = rlat_fast (memory, x + 4, maskl); | |
7a292a7a SS |
672 | saved_state.asregs.fregs[i].i[(j + 0)] = f0; |
673 | saved_state.asregs.fregs[i].i[(j + 1)] = f1; | |
674 | return 0; | |
675 | } | |
c906108c | 676 | |
63978407 | 677 | #define WDAT(x, n) (do_wdat (memory, (x), (n), (maskl))) |
7a292a7a | 678 | static int |
63978407 | 679 | do_wdat (memory, x, n, maskl) |
7a292a7a SS |
680 | char *memory; |
681 | int x; | |
682 | int n; | |
63978407 | 683 | int maskl; |
7a292a7a SS |
684 | { |
685 | int f0; | |
686 | int f1; | |
687 | int i = (n & 1); | |
688 | int j = (n & ~1); | |
689 | f0 = saved_state.asregs.fregs[i].i[(j + 0)]; | |
690 | f1 = saved_state.asregs.fregs[i].i[(j + 1)]; | |
63978407 JR |
691 | wlat_fast (memory, (x + 0), f0, maskl); |
692 | wlat_fast (memory, (x + 4), f1, maskl); | |
7a292a7a SS |
693 | return 0; |
694 | } | |
c906108c | 695 | |
63978407 JR |
696 | static void |
697 | process_wlat_addr (addr, value) | |
698 | int addr; | |
699 | int value; | |
700 | { | |
701 | unsigned int *ptr; | |
702 | ||
703 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, 32, 3, value, ); | |
704 | *ptr = value; | |
705 | } | |
706 | ||
707 | static void | |
708 | process_wwat_addr (addr, value) | |
709 | int addr; | |
710 | int value; | |
711 | { | |
712 | unsigned short *ptr; | |
713 | ||
714 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, 16, 1, value, ); | |
715 | *ptr = value; | |
716 | } | |
717 | ||
718 | static void | |
719 | process_wbat_addr (addr, value) | |
720 | int addr; | |
721 | int value; | |
722 | { | |
723 | unsigned char *ptr; | |
724 | ||
725 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, 8, 0, value, ); | |
726 | *ptr = value; | |
727 | } | |
c906108c | 728 | |
63978407 JR |
729 | static int |
730 | process_rlat_addr (addr) | |
731 | int addr; | |
732 | { | |
733 | unsigned char *ptr; | |
734 | ||
735 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, -32, 3, -1, 0); | |
736 | return *ptr; | |
737 | } | |
738 | ||
739 | static int | |
740 | process_rwat_addr (addr) | |
741 | int addr; | |
742 | { | |
743 | unsigned char *ptr; | |
744 | ||
745 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, -16, 1, -1, 0); | |
746 | return *ptr; | |
747 | } | |
748 | ||
749 | static int | |
750 | process_rbat_addr (addr) | |
751 | int addr; | |
752 | { | |
753 | unsigned char *ptr; | |
754 | ||
755 | PROCESS_SPECIAL_ADDRESS (addr, endianb, ptr, -8, 0, -1, 0); | |
756 | return *ptr; | |
757 | } | |
c906108c SS |
758 | |
759 | #define SEXT(x) (((x & 0xff) ^ (~0x7f))+0x80) | |
760 | #define SEXT12(x) (((x & 0xfff) ^ 0x800) - 0x800) | |
761 | #define SEXTW(y) ((int)((short)y)) | |
63978407 JR |
762 | #if 0 |
763 | #define SEXT32(x) ((int)((x & 0xffffffff) ^ 0x80000000U) - 0x7fffffff - 1) | |
764 | #else | |
765 | #define SEXT32(x) ((int)(x)) | |
766 | #endif | |
767 | #define SIGN32(x) (SEXT32 (x) >> 31) | |
768 | ||
769 | /* convert pointer from target to host value. */ | |
770 | #define PT2H(x) ((x) + memory) | |
771 | /* convert pointer from host to target value. */ | |
772 | #define PH2T(x) ((x) - memory) | |
773 | ||
774 | #define SKIP_INSN(p) ((p) += ((RIAT (p) & 0xfc00) == 0xf800 ? 4 : 2)) | |
c906108c | 775 | |
63978407 | 776 | #define SET_NIP(x) nip = (x); CHECK_INSN_PTR (nip); |
c906108c | 777 | |
63978407 JR |
778 | #define Delay_Slot(TEMPPC) iword = RIAT (TEMPPC); goto top; |
779 | ||
780 | #define CHECK_INSN_PTR(p) \ | |
781 | do { \ | |
782 | if (saved_state.asregs.exception || PH2T (p) & maskw) \ | |
783 | saved_state.asregs.insn_end = 0; \ | |
784 | else if (p < loop.end) \ | |
785 | saved_state.asregs.insn_end = loop.end; \ | |
786 | else \ | |
787 | saved_state.asregs.insn_end = mem_end; \ | |
788 | } while (0) | |
789 | ||
790 | #ifdef ACE_FAST | |
791 | ||
792 | #define MA(n) | |
793 | #define L(x) | |
794 | #define TL(x) | |
795 | #define TB(x) | |
796 | ||
797 | #else | |
798 | ||
799 | #define MA(n) \ | |
800 | do { memstalls += ((((int) PC & 3) != 0) ? (n) : ((n) - 1)); } while (0) | |
c906108c SS |
801 | |
802 | #define L(x) thislock = x; | |
803 | #define TL(x) if ((x) == prevlock) stalls++; | |
804 | #define TB(x,y) if ((x) == prevlock || (y)==prevlock) stalls++; | |
805 | ||
63978407 JR |
806 | #endif |
807 | ||
c906108c SS |
808 | #if defined(__GO32__) || defined(_WIN32) |
809 | int sim_memory_size = 19; | |
810 | #else | |
811 | int sim_memory_size = 24; | |
812 | #endif | |
813 | ||
814 | static int sim_profile_size = 17; | |
815 | static int nsamples; | |
816 | ||
817 | #undef TB | |
818 | #define TB(x,y) | |
819 | ||
820 | #define SMR1 (0x05FFFEC8) /* Channel 1 serial mode register */ | |
821 | #define BRR1 (0x05FFFEC9) /* Channel 1 bit rate register */ | |
822 | #define SCR1 (0x05FFFECA) /* Channel 1 serial control register */ | |
823 | #define TDR1 (0x05FFFECB) /* Channel 1 transmit data register */ | |
824 | #define SSR1 (0x05FFFECC) /* Channel 1 serial status register */ | |
825 | #define RDR1 (0x05FFFECD) /* Channel 1 receive data register */ | |
826 | ||
827 | #define SCI_RDRF 0x40 /* Recieve data register full */ | |
828 | #define SCI_TDRE 0x80 /* Transmit data register empty */ | |
829 | ||
830 | static int | |
831 | IOMEM (addr, write, value) | |
832 | int addr; | |
833 | int write; | |
834 | int value; | |
835 | { | |
836 | if (write) | |
837 | { | |
838 | switch (addr) | |
839 | { | |
840 | case TDR1: | |
841 | if (value != '\r') | |
842 | { | |
843 | putchar (value); | |
844 | fflush (stdout); | |
845 | } | |
846 | break; | |
847 | } | |
848 | } | |
849 | else | |
850 | { | |
851 | switch (addr) | |
852 | { | |
853 | case RDR1: | |
854 | return getchar (); | |
855 | } | |
856 | } | |
857 | return 0; | |
858 | } | |
859 | ||
860 | static int | |
861 | get_now () | |
862 | { | |
863 | return time ((long *) 0); | |
864 | } | |
865 | ||
866 | static int | |
867 | now_persec () | |
868 | { | |
869 | return 1; | |
870 | } | |
871 | ||
872 | static FILE *profile_file; | |
873 | ||
63978407 JR |
874 | static unsigned INLINE |
875 | swap (n) | |
876 | unsigned n; | |
c906108c | 877 | { |
63978407 JR |
878 | if (endianb) |
879 | n = (n << 24 | (n & 0xff00) << 8 | |
880 | | (n & 0xff0000) >> 8 | (n & 0xff000000) >> 24); | |
881 | return n; | |
c906108c SS |
882 | } |
883 | ||
63978407 JR |
884 | static unsigned short INLINE |
885 | swap16 (n) | |
886 | unsigned short n; | |
c906108c | 887 | { |
63978407 JR |
888 | if (endianb) |
889 | n = n << 8 | (n & 0xff00) >> 8; | |
890 | return n; | |
c906108c SS |
891 | } |
892 | ||
893 | static void | |
894 | swapout (n) | |
895 | int n; | |
896 | { | |
897 | if (profile_file) | |
898 | { | |
63978407 JR |
899 | union { char b[4]; int n; } u; |
900 | u.n = swap (n); | |
901 | fwrite (u.b, 4, 1, profile_file); | |
c906108c SS |
902 | } |
903 | } | |
904 | ||
905 | static void | |
906 | swapout16 (n) | |
907 | int n; | |
908 | { | |
63978407 JR |
909 | union { char b[4]; int n; } u; |
910 | u.n = swap16 (n); | |
911 | fwrite (u.b, 2, 1, profile_file); | |
c906108c SS |
912 | } |
913 | ||
914 | /* Turn a pointer in a register into a pointer into real memory. */ | |
915 | ||
916 | static char * | |
917 | ptr (x) | |
918 | int x; | |
919 | { | |
920 | return (char *) (x + saved_state.asregs.memory); | |
921 | } | |
922 | ||
63978407 JR |
923 | static int |
924 | strswaplen (str) | |
925 | int str; | |
926 | { | |
927 | unsigned char *memory = saved_state.asregs.memory; | |
928 | int start, end; | |
929 | int endian = endianb; | |
930 | ||
931 | if (! endian) | |
932 | return 0; | |
933 | end = str; | |
934 | for (end = str; memory[end ^ endian]; end++) ; | |
935 | return end - str; | |
936 | } | |
937 | ||
938 | static void | |
939 | strnswap (str, len) | |
940 | int str; | |
941 | int len; | |
942 | { | |
943 | int *start, *end; | |
944 | ||
945 | if (! endianb || ! len) | |
946 | return; | |
947 | start = (int *) ptr (str & ~3); | |
948 | end = (int *) ptr (str + len); | |
949 | do | |
950 | { | |
951 | int old = *start; | |
952 | *start = (old << 24 | (old & 0xff00) << 8 | |
953 | | (old & 0xff0000) >> 8 | (old & 0xff000000) >> 24); | |
954 | start++; | |
955 | } | |
956 | while (start < end); | |
957 | } | |
958 | ||
fd8f4948 JR |
959 | /* Simulate a monitor trap, put the result into r0 and errno into r1 |
960 | return offset by which to adjust pc. */ | |
c906108c | 961 | |
fd8f4948 JR |
962 | static int |
963 | trap (i, regs, insn_ptr, memory, maskl, maskw, endianw) | |
c906108c SS |
964 | int i; |
965 | int *regs; | |
fd8f4948 | 966 | unsigned char *insn_ptr; |
c906108c SS |
967 | unsigned char *memory; |
968 | { | |
969 | switch (i) | |
970 | { | |
971 | case 1: | |
972 | printf ("%c", regs[0]); | |
973 | break; | |
974 | case 2: | |
63978407 | 975 | raise_exception (SIGQUIT); |
c906108c SS |
976 | break; |
977 | case 3: /* FIXME: for backwards compat, should be removed */ | |
fd8f4948 JR |
978 | case 33: |
979 | { | |
980 | unsigned int countp = * (unsigned int *) (insn_ptr + 4); | |
981 | ||
982 | WLAT (countp, RLAT (countp) + 1); | |
983 | return 6; | |
984 | } | |
c906108c SS |
985 | case 34: |
986 | { | |
987 | extern int errno; | |
988 | int perrno = errno; | |
989 | errno = 0; | |
990 | ||
991 | switch (regs[4]) | |
992 | { | |
993 | ||
994 | #if !defined(__GO32__) && !defined(_WIN32) | |
995 | case SYS_fork: | |
996 | regs[0] = fork (); | |
997 | break; | |
63978407 JR |
998 | /* This would work only if endianness matched between host and target. |
999 | Besides, it's quite dangerous. */ | |
1000 | #if 0 | |
c906108c SS |
1001 | case SYS_execve: |
1002 | regs[0] = execve (ptr (regs[5]), (char **)ptr (regs[6]), (char **)ptr (regs[7])); | |
1003 | break; | |
1004 | case SYS_execv: | |
1005 | regs[0] = execve (ptr (regs[5]),(char **) ptr (regs[6]), 0); | |
1006 | break; | |
63978407 | 1007 | #endif |
c906108c SS |
1008 | case SYS_pipe: |
1009 | { | |
63978407 JR |
1010 | regs[0] = (BUSERROR (regs[5], maskl) |
1011 | ? -EINVAL | |
1012 | : pipe ((int *) ptr (regs[5]))); | |
c906108c SS |
1013 | } |
1014 | break; | |
1015 | ||
1016 | case SYS_wait: | |
1017 | regs[0] = wait (ptr (regs[5])); | |
1018 | break; | |
63978407 | 1019 | #endif /* !defined(__GO32__) && !defined(_WIN32) */ |
c906108c SS |
1020 | |
1021 | case SYS_read: | |
63978407 JR |
1022 | strnswap (regs[6], regs[7]); |
1023 | regs[0] | |
1024 | = callback->read (callback, regs[5], ptr (regs[6]), regs[7]); | |
1025 | strnswap (regs[6], regs[7]); | |
c906108c SS |
1026 | break; |
1027 | case SYS_write: | |
63978407 | 1028 | strnswap (regs[6], regs[7]); |
c906108c SS |
1029 | if (regs[5] == 1) |
1030 | regs[0] = (int)callback->write_stdout (callback, ptr(regs[6]), regs[7]); | |
1031 | else | |
1032 | regs[0] = (int)callback->write (callback, regs[5], ptr (regs[6]), regs[7]); | |
63978407 | 1033 | strnswap (regs[6], regs[7]); |
c906108c SS |
1034 | break; |
1035 | case SYS_lseek: | |
1036 | regs[0] = callback->lseek (callback,regs[5], regs[6], regs[7]); | |
1037 | break; | |
1038 | case SYS_close: | |
1039 | regs[0] = callback->close (callback,regs[5]); | |
1040 | break; | |
1041 | case SYS_open: | |
63978407 JR |
1042 | { |
1043 | int len = strswaplen (regs[5]); | |
1044 | strnswap (regs[5], len); | |
1045 | regs[0] = callback->open (callback,ptr (regs[5]), regs[6]); | |
1046 | strnswap (regs[5], len); | |
1047 | break; | |
1048 | } | |
c906108c SS |
1049 | case SYS_exit: |
1050 | /* EXIT - caller can look in r5 to work out the reason */ | |
63978407 | 1051 | raise_exception (SIGQUIT); |
c906108c SS |
1052 | regs[0] = regs[5]; |
1053 | break; | |
1054 | ||
1055 | case SYS_stat: /* added at hmsi */ | |
1056 | /* stat system call */ | |
1057 | { | |
1058 | struct stat host_stat; | |
63978407 JR |
1059 | int buf; |
1060 | int len = strswaplen (regs[5]); | |
c906108c | 1061 | |
63978407 | 1062 | strnswap (regs[5], len); |
c906108c | 1063 | regs[0] = stat (ptr (regs[5]), &host_stat); |
63978407 | 1064 | strnswap (regs[5], len); |
c906108c | 1065 | |
63978407 | 1066 | buf = regs[6]; |
c906108c SS |
1067 | |
1068 | WWAT (buf, host_stat.st_dev); | |
1069 | buf += 2; | |
1070 | WWAT (buf, host_stat.st_ino); | |
1071 | buf += 2; | |
1072 | WLAT (buf, host_stat.st_mode); | |
1073 | buf += 4; | |
1074 | WWAT (buf, host_stat.st_nlink); | |
1075 | buf += 2; | |
1076 | WWAT (buf, host_stat.st_uid); | |
1077 | buf += 2; | |
1078 | WWAT (buf, host_stat.st_gid); | |
1079 | buf += 2; | |
1080 | WWAT (buf, host_stat.st_rdev); | |
1081 | buf += 2; | |
1082 | WLAT (buf, host_stat.st_size); | |
1083 | buf += 4; | |
1084 | WLAT (buf, host_stat.st_atime); | |
1085 | buf += 4; | |
1086 | WLAT (buf, 0); | |
1087 | buf += 4; | |
1088 | WLAT (buf, host_stat.st_mtime); | |
1089 | buf += 4; | |
1090 | WLAT (buf, 0); | |
1091 | buf += 4; | |
1092 | WLAT (buf, host_stat.st_ctime); | |
1093 | buf += 4; | |
1094 | WLAT (buf, 0); | |
1095 | buf += 4; | |
1096 | WLAT (buf, 0); | |
1097 | buf += 4; | |
1098 | WLAT (buf, 0); | |
1099 | buf += 4; | |
1100 | } | |
1101 | break; | |
1102 | ||
1103 | #ifndef _WIN32 | |
1104 | case SYS_chown: | |
63978407 JR |
1105 | { |
1106 | int len = strswaplen (regs[5]); | |
1107 | ||
1108 | strnswap (regs[5], len); | |
1109 | regs[0] = chown (ptr (regs[5]), regs[6], regs[7]); | |
1110 | strnswap (regs[5], len); | |
1111 | break; | |
1112 | } | |
c906108c SS |
1113 | #endif /* _WIN32 */ |
1114 | case SYS_chmod: | |
63978407 JR |
1115 | { |
1116 | int len = strswaplen (regs[5]); | |
1117 | ||
1118 | strnswap (regs[5], len); | |
1119 | regs[0] = chmod (ptr (regs[5]), regs[6]); | |
1120 | strnswap (regs[5], len); | |
1121 | break; | |
1122 | } | |
c906108c | 1123 | case SYS_utime: |
63978407 JR |
1124 | { |
1125 | /* Cast the second argument to void *, to avoid type mismatch | |
1126 | if a prototype is present. */ | |
1127 | int len = strswaplen (regs[5]); | |
1128 | ||
1129 | strnswap (regs[5], len); | |
1130 | regs[0] = utime (ptr (regs[5]), (void *) ptr (regs[6])); | |
1131 | strnswap (regs[5], len); | |
1132 | break; | |
1133 | } | |
de0492b6 AO |
1134 | case SYS_argc: |
1135 | regs[0] = count_argc (prog_argv); | |
1136 | break; | |
1137 | case SYS_argnlen: | |
1138 | if (regs[5] < count_argc (prog_argv)) | |
1139 | regs[0] = strlen (prog_argv[regs[5]]); | |
1140 | else | |
1141 | regs[0] = -1; | |
1142 | break; | |
1143 | case SYS_argn: | |
1144 | if (regs[5] < count_argc (prog_argv)) | |
1145 | { | |
1146 | /* Include the termination byte. */ | |
1147 | int i = strlen (prog_argv[regs[5]]) + 1; | |
1148 | regs[0] = sim_write (0, regs[6], prog_argv[regs[5]], i); | |
1149 | } | |
1150 | else | |
1151 | regs[0] = -1; | |
1152 | break; | |
55406459 AO |
1153 | case SYS_time: |
1154 | regs[0] = get_now (); | |
1155 | break; | |
8822d001 JR |
1156 | case SYS_ftruncate: |
1157 | regs[0] = callback->ftruncate (callback, regs[5], regs[6]); | |
1158 | break; | |
1159 | case SYS_truncate: | |
1160 | { | |
1161 | int len = strswaplen (regs[5]); | |
1162 | strnswap (regs[5], len); | |
1163 | regs[0] = callback->truncate (callback, ptr (regs[5]), regs[6]); | |
1164 | strnswap (regs[5], len); | |
1165 | break; | |
1166 | } | |
c906108c | 1167 | default: |
de0492b6 AO |
1168 | regs[0] = -1; |
1169 | break; | |
c906108c SS |
1170 | } |
1171 | regs[1] = callback->get_errno (callback); | |
1172 | errno = perrno; | |
1173 | } | |
1174 | break; | |
1175 | ||
1176 | case 0xc3: | |
1177 | case 255: | |
63978407 | 1178 | raise_exception (SIGTRAP); |
fd8f4948 JR |
1179 | if (i == 0xc3) |
1180 | return -2; | |
c906108c SS |
1181 | break; |
1182 | } | |
fd8f4948 | 1183 | return 0; |
c906108c SS |
1184 | } |
1185 | ||
1186 | void | |
1187 | control_c (sig, code, scp, addr) | |
1188 | int sig; | |
1189 | int code; | |
1190 | char *scp; | |
1191 | char *addr; | |
1192 | { | |
63978407 | 1193 | raise_exception (SIGINT); |
c906108c SS |
1194 | } |
1195 | ||
1196 | static int | |
1197 | div1 (R, iRn2, iRn1/*, T*/) | |
1198 | int *R; | |
1199 | int iRn1; | |
1200 | int iRn2; | |
1201 | /* int T;*/ | |
1202 | { | |
1203 | unsigned long tmp0; | |
1204 | unsigned char old_q, tmp1; | |
1205 | ||
1206 | old_q = Q; | |
1207 | SET_SR_Q ((unsigned char) ((0x80000000 & R[iRn1]) != 0)); | |
1208 | R[iRn1] <<= 1; | |
1209 | R[iRn1] |= (unsigned long) T; | |
1210 | ||
1211 | switch (old_q) | |
1212 | { | |
1213 | case 0: | |
1214 | switch (M) | |
1215 | { | |
1216 | case 0: | |
1217 | tmp0 = R[iRn1]; | |
1218 | R[iRn1] -= R[iRn2]; | |
1219 | tmp1 = (R[iRn1] > tmp0); | |
1220 | switch (Q) | |
1221 | { | |
1222 | case 0: | |
1223 | SET_SR_Q (tmp1); | |
1224 | break; | |
1225 | case 1: | |
1226 | SET_SR_Q ((unsigned char) (tmp1 == 0)); | |
1227 | break; | |
1228 | } | |
1229 | break; | |
1230 | case 1: | |
1231 | tmp0 = R[iRn1]; | |
1232 | R[iRn1] += R[iRn2]; | |
1233 | tmp1 = (R[iRn1] < tmp0); | |
1234 | switch (Q) | |
1235 | { | |
1236 | case 0: | |
1237 | SET_SR_Q ((unsigned char) (tmp1 == 0)); | |
1238 | break; | |
1239 | case 1: | |
1240 | SET_SR_Q (tmp1); | |
1241 | break; | |
1242 | } | |
1243 | break; | |
1244 | } | |
1245 | break; | |
1246 | case 1: | |
1247 | switch (M) | |
1248 | { | |
1249 | case 0: | |
1250 | tmp0 = R[iRn1]; | |
1251 | R[iRn1] += R[iRn2]; | |
1252 | tmp1 = (R[iRn1] < tmp0); | |
1253 | switch (Q) | |
1254 | { | |
1255 | case 0: | |
1256 | SET_SR_Q (tmp1); | |
1257 | break; | |
1258 | case 1: | |
1259 | SET_SR_Q ((unsigned char) (tmp1 == 0)); | |
1260 | break; | |
1261 | } | |
1262 | break; | |
1263 | case 1: | |
1264 | tmp0 = R[iRn1]; | |
1265 | R[iRn1] -= R[iRn2]; | |
1266 | tmp1 = (R[iRn1] > tmp0); | |
1267 | switch (Q) | |
1268 | { | |
1269 | case 0: | |
1270 | SET_SR_Q ((unsigned char) (tmp1 == 0)); | |
1271 | break; | |
1272 | case 1: | |
1273 | SET_SR_Q (tmp1); | |
1274 | break; | |
1275 | } | |
1276 | break; | |
1277 | } | |
1278 | break; | |
1279 | } | |
1280 | /*T = (Q == M);*/ | |
1281 | SET_SR_T (Q == M); | |
1282 | /*return T;*/ | |
1283 | } | |
1284 | ||
1285 | static void | |
1286 | dmul (sign, rm, rn) | |
1287 | int sign; | |
1288 | unsigned int rm; | |
1289 | unsigned int rn; | |
1290 | { | |
1291 | unsigned long RnL, RnH; | |
1292 | unsigned long RmL, RmH; | |
1293 | unsigned long temp0, temp1, temp2, temp3; | |
1294 | unsigned long Res2, Res1, Res0; | |
1295 | ||
1296 | RnL = rn & 0xffff; | |
1297 | RnH = (rn >> 16) & 0xffff; | |
1298 | RmL = rm & 0xffff; | |
1299 | RmH = (rm >> 16) & 0xffff; | |
1300 | temp0 = RmL * RnL; | |
1301 | temp1 = RmH * RnL; | |
1302 | temp2 = RmL * RnH; | |
1303 | temp3 = RmH * RnH; | |
1304 | Res2 = 0; | |
1305 | Res1 = temp1 + temp2; | |
1306 | if (Res1 < temp1) | |
1307 | Res2 += 0x00010000; | |
1308 | temp1 = (Res1 << 16) & 0xffff0000; | |
1309 | Res0 = temp0 + temp1; | |
1310 | if (Res0 < temp0) | |
1311 | Res2 += 1; | |
1312 | Res2 += ((Res1 >> 16) & 0xffff) + temp3; | |
1313 | ||
1314 | if (sign) | |
1315 | { | |
1316 | if (rn & 0x80000000) | |
1317 | Res2 -= rm; | |
1318 | if (rm & 0x80000000) | |
1319 | Res2 -= rn; | |
1320 | } | |
1321 | ||
1322 | MACH = Res2; | |
1323 | MACL = Res0; | |
1324 | } | |
1325 | ||
1326 | static void | |
63978407 | 1327 | macw (regs, memory, n, m, endianw) |
c906108c SS |
1328 | int *regs; |
1329 | unsigned char *memory; | |
1330 | int m, n; | |
63978407 | 1331 | int endianw; |
c906108c | 1332 | { |
c906108c SS |
1333 | long tempm, tempn; |
1334 | long prod, macl, sum; | |
1335 | ||
1336 | tempm=RSWAT(regs[m]); regs[m]+=2; | |
1337 | tempn=RSWAT(regs[n]); regs[n]+=2; | |
1338 | ||
1339 | macl = MACL; | |
1340 | prod = (long)(short) tempm * (long)(short) tempn; | |
1341 | sum = prod + macl; | |
1342 | if (S) | |
1343 | { | |
1344 | if ((~(prod ^ macl) & (sum ^ prod)) < 0) | |
1345 | { | |
1346 | /* MACH's lsb is a sticky overflow bit. */ | |
1347 | MACH |= 1; | |
1348 | /* Store the smallest negative number in MACL if prod is | |
1349 | negative, and the largest positive number otherwise. */ | |
1350 | sum = 0x7fffffff + (prod < 0); | |
1351 | } | |
1352 | } | |
1353 | else | |
1354 | { | |
1355 | long mach; | |
1356 | /* Add to MACH the sign extended product, and carry from low sum. */ | |
1357 | mach = MACH + (-(prod < 0)) + ((unsigned long) sum < prod); | |
1358 | /* Sign extend at 10:th bit in MACH. */ | |
1359 | MACH = (mach & 0x1ff) | -(mach & 0x200); | |
1360 | } | |
1361 | MACL = sum; | |
1362 | } | |
1363 | ||
d1789ace MS |
1364 | static void |
1365 | macl (regs, memory, n, m) | |
1366 | int *regs; | |
1367 | unsigned char *memory; | |
1368 | int m, n; | |
1369 | { | |
1370 | long tempm, tempn; | |
1371 | long prod, macl, mach, sum; | |
1372 | long long ans,ansl,ansh,t; | |
1373 | unsigned long long high,low,combine; | |
1374 | union mac64 | |
1375 | { | |
1376 | long m[2]; /* mach and macl*/ | |
1377 | long long m64; /* 64 bit MAC */ | |
1378 | }mac64; | |
1379 | ||
1380 | tempm = RSLAT(regs[m]); | |
1381 | regs[m] += 4; | |
1382 | ||
1383 | tempn = RSLAT(regs[n]); | |
1384 | regs[n] += 4; | |
1385 | ||
1386 | mach = MACH; | |
1387 | macl = MACL; | |
1388 | ||
1389 | mac64.m[0] = macl; | |
1390 | mac64.m[1] = mach; | |
1391 | ||
1392 | ans = (long long)tempm * (long long)tempn; /* Multiply 32bit * 32bit */ | |
1393 | ||
1394 | mac64.m64 += ans; /* Accumulate 64bit + 64 bit */ | |
1395 | ||
1396 | macl = mac64.m[0]; | |
1397 | mach = mac64.m[1]; | |
1398 | ||
1399 | if (S) /* Store only 48 bits of the result */ | |
1400 | { | |
1401 | if (mach < 0) /* Result is negative */ | |
1402 | { | |
1403 | mach = mach & 0x0000ffff; /* Mask higher 16 bits */ | |
1404 | mach |= 0xffff8000; /* Sign extend higher 16 bits */ | |
1405 | } | |
1406 | else | |
1407 | mach = mach & 0x00007fff; /* Postive Result */ | |
1408 | } | |
1409 | ||
1410 | MACL = macl; | |
1411 | MACH = mach; | |
1412 | } | |
1413 | ||
794cd17b JR |
1414 | float |
1415 | fsca_s (int in, double (*f) (double)) | |
1416 | { | |
1417 | double rad = ldexp ((in & 0xffff), -15) * 3.141592653589793238462643383; | |
1418 | double result = (*f) (rad); | |
1419 | double error, upper, lower, frac; | |
1420 | int exp; | |
1421 | ||
1422 | /* Search the value with the maximum error that is still within the | |
1423 | architectural spec. */ | |
1424 | error = ldexp (1., -21); | |
1425 | /* compensate for calculation inaccuracy by reducing error. */ | |
1426 | error = error - ldexp (1., -50); | |
1427 | upper = result + error; | |
1428 | frac = frexp (upper, &exp); | |
1429 | upper = ldexp (floor (ldexp (frac, 24)), exp - 24); | |
1430 | lower = result - error; | |
1431 | frac = frexp (lower, &exp); | |
1432 | lower = ldexp (ceil (ldexp (frac, 24)), exp - 24); | |
1433 | return abs (upper - result) >= abs (lower - result) ? upper : lower; | |
1434 | } | |
1435 | ||
1436 | float | |
1437 | fsrra_s (float in) | |
1438 | { | |
1439 | double result = 1. / sqrt (in); | |
1440 | int exp; | |
1441 | double frac, upper, lower, error, eps; | |
1442 | ||
1443 | /* refine result */ | |
1444 | result = result - (result * result * in - 1) * 0.5 * result; | |
1445 | /* Search the value with the maximum error that is still within the | |
1446 | architectural spec. */ | |
1447 | frac = frexp (result, &exp); | |
1448 | frac = ldexp (frac, 24); | |
1449 | error = 4.; /* 1 << 24-1-21 */ | |
1450 | /* use eps to compensate for possible 1 ulp error in our 'exact' result. */ | |
1451 | eps = ldexp (1., -29); | |
1452 | upper = floor (frac + error - eps); | |
1453 | if (upper > 16777216.) | |
1454 | upper = floor ((frac + error - eps) * 0.5) * 2.; | |
1455 | lower = ceil ((frac - error + eps) * 2) * .5; | |
1456 | if (lower > 8388608.) | |
1457 | lower = ceil (frac - error + eps); | |
1458 | upper = ldexp (upper, exp - 24); | |
1459 | lower = ldexp (lower, exp - 24); | |
1460 | return upper - result >= result - lower ? upper : lower; | |
1461 | } | |
1462 | ||
63978407 JR |
1463 | static struct loop_bounds |
1464 | get_loop_bounds (rs, re, memory, mem_end, maskw, endianw) | |
1465 | int rs, re; | |
1466 | unsigned char *memory, *mem_end; | |
1467 | int maskw, endianw; | |
1468 | { | |
1469 | struct loop_bounds loop; | |
1470 | ||
1471 | if (SR_RC) | |
1472 | { | |
1473 | if (RS >= RE) | |
1474 | { | |
1475 | loop.start = PT2H (RE - 4); | |
1476 | SKIP_INSN (loop.start); | |
1477 | loop.end = loop.start; | |
1478 | if (RS - RE == 0) | |
1479 | SKIP_INSN (loop.end); | |
1480 | if (RS - RE <= 2) | |
1481 | SKIP_INSN (loop.end); | |
1482 | SKIP_INSN (loop.end); | |
1483 | } | |
1484 | else | |
1485 | { | |
1486 | loop.start = PT2H (RS); | |
1487 | loop.end = PT2H (RE - 4); | |
1488 | SKIP_INSN (loop.end); | |
1489 | SKIP_INSN (loop.end); | |
1490 | SKIP_INSN (loop.end); | |
1491 | SKIP_INSN (loop.end); | |
1492 | } | |
1493 | if (loop.end >= mem_end) | |
1494 | loop.end = PT2H (0); | |
1495 | } | |
1496 | else | |
1497 | loop.end = PT2H (0); | |
1498 | ||
1499 | return loop; | |
1500 | } | |
1501 | ||
1502 | static void | |
1503 | ppi_insn(); | |
1504 | ||
1505 | #include "ppi.c" | |
1506 | ||
c906108c SS |
1507 | /* Set the memory size to the power of two provided. */ |
1508 | ||
1509 | void | |
1510 | sim_size (power) | |
1511 | int power; | |
1512 | ||
1513 | { | |
1514 | saved_state.asregs.msize = 1 << power; | |
1515 | ||
1516 | sim_memory_size = power; | |
1517 | ||
1518 | if (saved_state.asregs.memory) | |
1519 | { | |
1520 | free (saved_state.asregs.memory); | |
1521 | } | |
1522 | ||
1523 | saved_state.asregs.memory = | |
1524 | (unsigned char *) calloc (64, saved_state.asregs.msize / 64); | |
1525 | ||
1526 | if (!saved_state.asregs.memory) | |
1527 | { | |
1528 | fprintf (stderr, | |
1529 | "Not enough VM for simulation of %d bytes of RAM\n", | |
1530 | saved_state.asregs.msize); | |
1531 | ||
1532 | saved_state.asregs.msize = 1; | |
1533 | saved_state.asregs.memory = (unsigned char *) calloc (1, 1); | |
1534 | } | |
1535 | } | |
1536 | ||
63978407 JR |
1537 | static void |
1538 | init_dsp (abfd) | |
6b4a8935 | 1539 | struct bfd *abfd; |
63978407 JR |
1540 | { |
1541 | int was_dsp = target_dsp; | |
1542 | unsigned long mach = bfd_get_mach (abfd); | |
1543 | ||
1544 | if (mach == bfd_mach_sh_dsp || mach == bfd_mach_sh3_dsp) | |
1545 | { | |
1546 | int ram_area_size, xram_start, yram_start; | |
1547 | int new_select; | |
1548 | ||
1549 | target_dsp = 1; | |
1550 | if (mach == bfd_mach_sh_dsp) | |
1551 | { | |
1552 | /* SH7410 (orig. sh-sdp): | |
1553 | 4KB each for X & Y memory; | |
1554 | On-chip X RAM 0x0800f000-0x0800ffff | |
1555 | On-chip Y RAM 0x0801f000-0x0801ffff */ | |
1556 | xram_start = 0x0800f000; | |
1557 | ram_area_size = 0x1000; | |
1558 | } | |
1559 | if (mach == bfd_mach_sh3_dsp) | |
1560 | { | |
1561 | /* SH7612: | |
1562 | 8KB each for X & Y memory; | |
1563 | On-chip X RAM 0x1000e000-0x1000ffff | |
1564 | On-chip Y RAM 0x1001e000-0x1001ffff */ | |
1565 | xram_start = 0x1000e000; | |
1566 | ram_area_size = 0x2000; | |
1567 | } | |
1568 | yram_start = xram_start + 0x10000; | |
1569 | new_select = ~(ram_area_size - 1); | |
1570 | if (saved_state.asregs.xyram_select != new_select) | |
1571 | { | |
1572 | saved_state.asregs.xyram_select = new_select; | |
1573 | free (saved_state.asregs.xmem); | |
1574 | free (saved_state.asregs.ymem); | |
1575 | saved_state.asregs.xmem = (unsigned char *) calloc (1, ram_area_size); | |
1576 | saved_state.asregs.ymem = (unsigned char *) calloc (1, ram_area_size); | |
1577 | ||
1578 | /* Disable use of X / Y mmeory if not allocated. */ | |
1579 | if (! saved_state.asregs.xmem || ! saved_state.asregs.ymem) | |
1580 | { | |
1581 | saved_state.asregs.xyram_select = 0; | |
1582 | if (saved_state.asregs.xmem) | |
1583 | free (saved_state.asregs.xmem); | |
1584 | if (saved_state.asregs.ymem) | |
1585 | free (saved_state.asregs.ymem); | |
1586 | } | |
1587 | } | |
1588 | saved_state.asregs.xram_start = xram_start; | |
1589 | saved_state.asregs.yram_start = yram_start; | |
1590 | saved_state.asregs.xmem_offset = saved_state.asregs.xmem - xram_start; | |
1591 | saved_state.asregs.ymem_offset = saved_state.asregs.ymem - yram_start; | |
1592 | } | |
1593 | else | |
1594 | { | |
1595 | target_dsp = 0; | |
1596 | if (saved_state.asregs.xyram_select) | |
1597 | { | |
1598 | saved_state.asregs.xyram_select = 0; | |
1599 | free (saved_state.asregs.xmem); | |
1600 | free (saved_state.asregs.ymem); | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | if (! saved_state.asregs.xyram_select) | |
1605 | { | |
1606 | saved_state.asregs.xram_start = 1; | |
1607 | saved_state.asregs.yram_start = 1; | |
1608 | } | |
1609 | ||
1610 | if (target_dsp != was_dsp) | |
1611 | { | |
1612 | int i, tmp; | |
1613 | ||
1614 | for (i = sizeof sh_dsp_table - 1; i >= 0; i--) | |
1615 | { | |
1616 | tmp = sh_jump_table[0xf000 + i]; | |
1617 | sh_jump_table[0xf000 + i] = sh_dsp_table[i]; | |
1618 | sh_dsp_table[i] = tmp; | |
1619 | } | |
1620 | } | |
1621 | } | |
1622 | ||
c906108c SS |
1623 | static void |
1624 | init_pointers () | |
1625 | { | |
1626 | host_little_endian = 0; | |
1627 | *(char*)&host_little_endian = 1; | |
1628 | host_little_endian &= 1; | |
1629 | ||
1630 | if (saved_state.asregs.msize != 1 << sim_memory_size) | |
1631 | { | |
1632 | sim_size (sim_memory_size); | |
1633 | } | |
1634 | ||
1635 | if (saved_state.asregs.profile && !profile_file) | |
1636 | { | |
1637 | profile_file = fopen ("gmon.out", "wb"); | |
1638 | /* Seek to where to put the call arc data */ | |
1639 | nsamples = (1 << sim_profile_size); | |
1640 | ||
1641 | fseek (profile_file, nsamples * 2 + 12, 0); | |
1642 | ||
1643 | if (!profile_file) | |
1644 | { | |
1645 | fprintf (stderr, "Can't open gmon.out\n"); | |
1646 | } | |
1647 | else | |
1648 | { | |
1649 | saved_state.asregs.profile_hist = | |
1650 | (unsigned short *) calloc (64, (nsamples * sizeof (short) / 64)); | |
1651 | } | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | static void | |
1656 | dump_profile () | |
1657 | { | |
1658 | unsigned int minpc; | |
1659 | unsigned int maxpc; | |
1660 | unsigned short *p; | |
1661 | int i; | |
1662 | ||
1663 | p = saved_state.asregs.profile_hist; | |
1664 | minpc = 0; | |
1665 | maxpc = (1 << sim_profile_size); | |
1666 | ||
1667 | fseek (profile_file, 0L, 0); | |
1668 | swapout (minpc << PROFILE_SHIFT); | |
1669 | swapout (maxpc << PROFILE_SHIFT); | |
1670 | swapout (nsamples * 2 + 12); | |
1671 | for (i = 0; i < nsamples; i++) | |
1672 | swapout16 (saved_state.asregs.profile_hist[i]); | |
1673 | ||
1674 | } | |
1675 | ||
1676 | static void | |
1677 | gotcall (from, to) | |
1678 | int from; | |
1679 | int to; | |
1680 | { | |
1681 | swapout (from); | |
1682 | swapout (to); | |
1683 | swapout (1); | |
1684 | } | |
1685 | ||
1686 | #define MMASKB ((saved_state.asregs.msize -1) & ~0) | |
1687 | ||
1688 | int | |
1689 | sim_stop (sd) | |
1690 | SIM_DESC sd; | |
1691 | { | |
63978407 | 1692 | raise_exception (SIGINT); |
c906108c SS |
1693 | return 1; |
1694 | } | |
1695 | ||
1696 | void | |
1697 | sim_resume (sd, step, siggnal) | |
1698 | SIM_DESC sd; | |
1699 | int step, siggnal; | |
1700 | { | |
63978407 JR |
1701 | register unsigned char *insn_ptr; |
1702 | unsigned char *mem_end; | |
1703 | struct loop_bounds loop; | |
c906108c SS |
1704 | register int cycles = 0; |
1705 | register int stalls = 0; | |
1706 | register int memstalls = 0; | |
1707 | register int insts = 0; | |
1708 | register int prevlock; | |
1709 | register int thislock; | |
1710 | register unsigned int doprofile; | |
1711 | register int pollcount = 0; | |
63978407 JR |
1712 | /* endianw is used for every insn fetch, hence it makes sense to cache it. |
1713 | endianb is used less often. */ | |
1714 | register int endianw = global_endianw; | |
c906108c SS |
1715 | |
1716 | int tick_start = get_now (); | |
1717 | void (*prev) (); | |
1718 | void (*prev_fpe) (); | |
c906108c | 1719 | |
63978407 | 1720 | register unsigned char *jump_table = sh_jump_table; |
c906108c SS |
1721 | |
1722 | register int *R = &(saved_state.asregs.regs[0]); | |
1723 | /*register int T;*/ | |
63978407 | 1724 | #ifndef PR |
c906108c | 1725 | register int PR; |
63978407 | 1726 | #endif |
c906108c | 1727 | |
63978407 JR |
1728 | register int maskb = ~((saved_state.asregs.msize - 1) & ~0); |
1729 | register int maskw = ~((saved_state.asregs.msize - 1) & ~1); | |
1730 | register int maskl = ~((saved_state.asregs.msize - 1) & ~3); | |
c906108c SS |
1731 | register unsigned char *memory; |
1732 | register unsigned int sbit = ((unsigned int) 1 << 31); | |
1733 | ||
1734 | prev = signal (SIGINT, control_c); | |
1735 | prev_fpe = signal (SIGFPE, SIG_IGN); | |
1736 | ||
1737 | init_pointers (); | |
63978407 | 1738 | saved_state.asregs.exception = 0; |
c906108c SS |
1739 | |
1740 | memory = saved_state.asregs.memory; | |
63978407 | 1741 | mem_end = memory + saved_state.asregs.msize; |
c906108c | 1742 | |
63978407 JR |
1743 | loop = get_loop_bounds (RS, RE, memory, mem_end, maskw, endianw); |
1744 | insn_ptr = PT2H (saved_state.asregs.pc); | |
1745 | CHECK_INSN_PTR (insn_ptr); | |
c906108c | 1746 | |
63978407 JR |
1747 | #ifndef PR |
1748 | PR = saved_state.asregs.sregs.named.pr; | |
1749 | #endif | |
c906108c SS |
1750 | /*T = GET_SR () & SR_MASK_T;*/ |
1751 | prevlock = saved_state.asregs.prevlock; | |
1752 | thislock = saved_state.asregs.thislock; | |
1753 | doprofile = saved_state.asregs.profile; | |
1754 | ||
1755 | /* If profiling not enabled, disable it by asking for | |
1756 | profiles infrequently. */ | |
1757 | if (doprofile == 0) | |
1758 | doprofile = ~0; | |
1759 | ||
63978407 JR |
1760 | loop: |
1761 | if (step && insn_ptr < saved_state.asregs.insn_end) | |
1762 | { | |
1763 | if (saved_state.asregs.exception) | |
1764 | /* This can happen if we've already been single-stepping and | |
1765 | encountered a loop end. */ | |
1766 | saved_state.asregs.insn_end = insn_ptr; | |
1767 | else | |
1768 | { | |
1769 | saved_state.asregs.exception = SIGTRAP; | |
1770 | saved_state.asregs.insn_end = insn_ptr + 2; | |
1771 | } | |
1772 | } | |
1773 | ||
1774 | while (insn_ptr < saved_state.asregs.insn_end) | |
c906108c | 1775 | { |
63978407 | 1776 | register unsigned int iword = RIAT (insn_ptr); |
c906108c | 1777 | register unsigned int ult; |
63978407 JR |
1778 | register unsigned char *nip = insn_ptr + 2; |
1779 | ||
c906108c SS |
1780 | #ifndef ACE_FAST |
1781 | insts++; | |
1782 | #endif | |
1783 | top: | |
1784 | ||
1785 | #include "code.c" | |
1786 | ||
1787 | ||
63978407 | 1788 | insn_ptr = nip; |
c906108c SS |
1789 | |
1790 | if (--pollcount < 0) | |
1791 | { | |
7a292a7a | 1792 | pollcount = POLL_QUIT_INTERVAL; |
c906108c SS |
1793 | if ((*callback->poll_quit) != NULL |
1794 | && (*callback->poll_quit) (callback)) | |
1795 | { | |
1796 | sim_stop (sd); | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | #ifndef ACE_FAST | |
1801 | prevlock = thislock; | |
1802 | thislock = 30; | |
1803 | cycles++; | |
1804 | ||
1805 | if (cycles >= doprofile) | |
1806 | { | |
1807 | ||
1808 | saved_state.asregs.cycles += doprofile; | |
1809 | cycles -= doprofile; | |
1810 | if (saved_state.asregs.profile_hist) | |
1811 | { | |
63978407 | 1812 | int n = PH2T (insn_ptr) >> PROFILE_SHIFT; |
c906108c SS |
1813 | if (n < nsamples) |
1814 | { | |
1815 | int i = saved_state.asregs.profile_hist[n]; | |
1816 | if (i < 65000) | |
1817 | saved_state.asregs.profile_hist[n] = i + 1; | |
1818 | } | |
1819 | ||
1820 | } | |
1821 | } | |
1822 | #endif | |
1823 | } | |
63978407 JR |
1824 | if (saved_state.asregs.insn_end == loop.end) |
1825 | { | |
1826 | saved_state.asregs.cregs.named.sr += SR_RC_INCREMENT; | |
1827 | if (SR_RC) | |
1828 | insn_ptr = loop.start; | |
1829 | else | |
1830 | { | |
1831 | saved_state.asregs.insn_end = mem_end; | |
1832 | loop.end = PT2H (0); | |
1833 | } | |
1834 | goto loop; | |
1835 | } | |
c906108c SS |
1836 | |
1837 | if (saved_state.asregs.exception == SIGILL | |
1838 | || saved_state.asregs.exception == SIGBUS) | |
1839 | { | |
63978407 | 1840 | insn_ptr -= 2; |
c906108c | 1841 | } |
63978407 JR |
1842 | /* Check for SIGBUS due to insn fetch. */ |
1843 | else if (! saved_state.asregs.exception) | |
dc9feb5c | 1844 | saved_state.asregs.exception = SIGBUS; |
c906108c SS |
1845 | |
1846 | saved_state.asregs.ticks += get_now () - tick_start; | |
1847 | saved_state.asregs.cycles += cycles; | |
1848 | saved_state.asregs.stalls += stalls; | |
1849 | saved_state.asregs.memstalls += memstalls; | |
1850 | saved_state.asregs.insts += insts; | |
63978407 JR |
1851 | saved_state.asregs.pc = PH2T (insn_ptr); |
1852 | #ifndef PR | |
1853 | saved_state.asregs.sregs.named.pr = PR; | |
1854 | #endif | |
c906108c SS |
1855 | |
1856 | saved_state.asregs.prevlock = prevlock; | |
1857 | saved_state.asregs.thislock = thislock; | |
1858 | ||
1859 | if (profile_file) | |
1860 | { | |
1861 | dump_profile (); | |
1862 | } | |
1863 | ||
1864 | signal (SIGFPE, prev_fpe); | |
1865 | signal (SIGINT, prev); | |
1866 | } | |
1867 | ||
1868 | int | |
1869 | sim_write (sd, addr, buffer, size) | |
1870 | SIM_DESC sd; | |
1871 | SIM_ADDR addr; | |
1872 | unsigned char *buffer; | |
1873 | int size; | |
1874 | { | |
1875 | int i; | |
1876 | ||
1877 | init_pointers (); | |
1878 | ||
1879 | for (i = 0; i < size; i++) | |
1880 | { | |
63978407 | 1881 | saved_state.asregs.memory[(MMASKB & (addr + i)) ^ endianb] = buffer[i]; |
c906108c SS |
1882 | } |
1883 | return size; | |
1884 | } | |
1885 | ||
1886 | int | |
1887 | sim_read (sd, addr, buffer, size) | |
1888 | SIM_DESC sd; | |
1889 | SIM_ADDR addr; | |
1890 | unsigned char *buffer; | |
1891 | int size; | |
1892 | { | |
1893 | int i; | |
1894 | ||
1895 | init_pointers (); | |
1896 | ||
1897 | for (i = 0; i < size; i++) | |
1898 | { | |
63978407 | 1899 | buffer[i] = saved_state.asregs.memory[(MMASKB & (addr + i)) ^ endianb]; |
c906108c SS |
1900 | } |
1901 | return size; | |
1902 | } | |
1903 | ||
c906108c SS |
1904 | int |
1905 | sim_store_register (sd, rn, memory, length) | |
1906 | SIM_DESC sd; | |
1907 | int rn; | |
1908 | unsigned char *memory; | |
1909 | int length; | |
1910 | { | |
63978407 JR |
1911 | unsigned val; |
1912 | ||
c906108c | 1913 | init_pointers (); |
63978407 JR |
1914 | val = swap (* (int *)memory); |
1915 | switch (rn) | |
1916 | { | |
2f14585c JR |
1917 | case SIM_SH_R0_REGNUM: case SIM_SH_R1_REGNUM: case SIM_SH_R2_REGNUM: |
1918 | case SIM_SH_R3_REGNUM: case SIM_SH_R4_REGNUM: case SIM_SH_R5_REGNUM: | |
1919 | case SIM_SH_R6_REGNUM: case SIM_SH_R7_REGNUM: case SIM_SH_R8_REGNUM: | |
1920 | case SIM_SH_R9_REGNUM: case SIM_SH_R10_REGNUM: case SIM_SH_R11_REGNUM: | |
1921 | case SIM_SH_R12_REGNUM: case SIM_SH_R13_REGNUM: case SIM_SH_R14_REGNUM: | |
1922 | case SIM_SH_R15_REGNUM: | |
63978407 JR |
1923 | saved_state.asregs.regs[rn] = val; |
1924 | break; | |
2f14585c | 1925 | case SIM_SH_PC_REGNUM: |
63978407 JR |
1926 | saved_state.asregs.pc = val; |
1927 | break; | |
2f14585c | 1928 | case SIM_SH_PR_REGNUM: |
63978407 JR |
1929 | PR = val; |
1930 | break; | |
2f14585c | 1931 | case SIM_SH_GBR_REGNUM: |
63978407 JR |
1932 | GBR = val; |
1933 | break; | |
2f14585c | 1934 | case SIM_SH_VBR_REGNUM: |
63978407 JR |
1935 | VBR = val; |
1936 | break; | |
2f14585c | 1937 | case SIM_SH_MACH_REGNUM: |
63978407 JR |
1938 | MACH = val; |
1939 | break; | |
2f14585c | 1940 | case SIM_SH_MACL_REGNUM: |
63978407 JR |
1941 | MACL = val; |
1942 | break; | |
2f14585c | 1943 | case SIM_SH_SR_REGNUM: |
63978407 JR |
1944 | SET_SR (val); |
1945 | break; | |
2f14585c | 1946 | case SIM_SH_FPUL_REGNUM: |
63978407 JR |
1947 | FPUL = val; |
1948 | break; | |
2f14585c | 1949 | case SIM_SH_FPSCR_REGNUM: |
63978407 JR |
1950 | SET_FPSCR (val); |
1951 | break; | |
2f14585c JR |
1952 | case SIM_SH_FR0_REGNUM: case SIM_SH_FR1_REGNUM: case SIM_SH_FR2_REGNUM: |
1953 | case SIM_SH_FR3_REGNUM: case SIM_SH_FR4_REGNUM: case SIM_SH_FR5_REGNUM: | |
1954 | case SIM_SH_FR6_REGNUM: case SIM_SH_FR7_REGNUM: case SIM_SH_FR8_REGNUM: | |
1955 | case SIM_SH_FR9_REGNUM: case SIM_SH_FR10_REGNUM: case SIM_SH_FR11_REGNUM: | |
1956 | case SIM_SH_FR12_REGNUM: case SIM_SH_FR13_REGNUM: case SIM_SH_FR14_REGNUM: | |
1957 | case SIM_SH_FR15_REGNUM: | |
1958 | SET_FI (rn - SIM_SH_FR0_REGNUM, val); | |
1959 | break; | |
1960 | case SIM_SH_DSR_REGNUM: | |
1961 | DSR = val; | |
1962 | break; | |
1963 | case SIM_SH_A0G_REGNUM: | |
1964 | A0G = val; | |
1965 | break; | |
1966 | case SIM_SH_A0_REGNUM: | |
1967 | A0 = val; | |
1968 | break; | |
1969 | case SIM_SH_A1G_REGNUM: | |
1970 | A1G = val; | |
1971 | break; | |
1972 | case SIM_SH_A1_REGNUM: | |
1973 | A1 = val; | |
1974 | break; | |
1975 | case SIM_SH_M0_REGNUM: | |
1976 | M0 = val; | |
1977 | break; | |
1978 | case SIM_SH_M1_REGNUM: | |
1979 | M1 = val; | |
1980 | break; | |
1981 | case SIM_SH_X0_REGNUM: | |
1982 | X0 = val; | |
1983 | break; | |
1984 | case SIM_SH_X1_REGNUM: | |
1985 | X1 = val; | |
1986 | break; | |
1987 | case SIM_SH_Y0_REGNUM: | |
1988 | Y0 = val; | |
1989 | break; | |
1990 | case SIM_SH_Y1_REGNUM: | |
1991 | Y1 = val; | |
1992 | break; | |
1993 | case SIM_SH_MOD_REGNUM: | |
1994 | SET_MOD (val); | |
1995 | break; | |
1996 | case SIM_SH_RS_REGNUM: | |
1997 | RS = val; | |
1998 | break; | |
1999 | case SIM_SH_RE_REGNUM: | |
2000 | RE = val; | |
2001 | break; | |
2002 | case SIM_SH_SSR_REGNUM: | |
63978407 JR |
2003 | SSR = val; |
2004 | break; | |
2f14585c | 2005 | case SIM_SH_SPC_REGNUM: |
63978407 JR |
2006 | SPC = val; |
2007 | break; | |
2008 | /* The rn_bank idiosyncracies are not due to hardware differences, but to | |
2009 | a weird aliasing naming scheme for sh3 / sh3e / sh4. */ | |
2f14585c JR |
2010 | case SIM_SH_R0_BANK0_REGNUM: case SIM_SH_R1_BANK0_REGNUM: |
2011 | case SIM_SH_R2_BANK0_REGNUM: case SIM_SH_R3_BANK0_REGNUM: | |
2012 | case SIM_SH_R4_BANK0_REGNUM: case SIM_SH_R5_BANK0_REGNUM: | |
2013 | case SIM_SH_R6_BANK0_REGNUM: case SIM_SH_R7_BANK0_REGNUM: | |
63978407 | 2014 | if (SR_MD && SR_RB) |
2f14585c | 2015 | Rn_BANK (rn - SIM_SH_R0_BANK0_REGNUM) = val; |
63978407 | 2016 | else |
2f14585c | 2017 | saved_state.asregs.regs[rn - SIM_SH_R0_BANK0_REGNUM] = val; |
63978407 | 2018 | break; |
2f14585c JR |
2019 | case SIM_SH_R0_BANK1_REGNUM: case SIM_SH_R1_BANK1_REGNUM: |
2020 | case SIM_SH_R2_BANK1_REGNUM: case SIM_SH_R3_BANK1_REGNUM: | |
2021 | case SIM_SH_R4_BANK1_REGNUM: case SIM_SH_R5_BANK1_REGNUM: | |
2022 | case SIM_SH_R6_BANK1_REGNUM: case SIM_SH_R7_BANK1_REGNUM: | |
2023 | if (SR_MD && SR_RB) | |
2024 | saved_state.asregs.regs[rn - SIM_SH_R0_BANK1_REGNUM] = val; | |
63978407 | 2025 | else |
2f14585c JR |
2026 | Rn_BANK (rn - SIM_SH_R0_BANK1_REGNUM) = val; |
2027 | break; | |
2028 | case SIM_SH_R0_BANK_REGNUM: case SIM_SH_R1_BANK_REGNUM: | |
2029 | case SIM_SH_R2_BANK_REGNUM: case SIM_SH_R3_BANK_REGNUM: | |
2030 | case SIM_SH_R4_BANK_REGNUM: case SIM_SH_R5_BANK_REGNUM: | |
2031 | case SIM_SH_R6_BANK_REGNUM: case SIM_SH_R7_BANK_REGNUM: | |
2032 | SET_Rn_BANK (rn - SIM_SH_R0_BANK_REGNUM, val); | |
63978407 JR |
2033 | break; |
2034 | default: | |
2035 | return 0; | |
2036 | } | |
c906108c SS |
2037 | return -1; |
2038 | } | |
2039 | ||
2040 | int | |
2041 | sim_fetch_register (sd, rn, memory, length) | |
2042 | SIM_DESC sd; | |
2043 | int rn; | |
2044 | unsigned char *memory; | |
2045 | int length; | |
2046 | { | |
63978407 JR |
2047 | int val; |
2048 | ||
c906108c | 2049 | init_pointers (); |
63978407 JR |
2050 | switch (rn) |
2051 | { | |
2f14585c JR |
2052 | case SIM_SH_R0_REGNUM: case SIM_SH_R1_REGNUM: case SIM_SH_R2_REGNUM: |
2053 | case SIM_SH_R3_REGNUM: case SIM_SH_R4_REGNUM: case SIM_SH_R5_REGNUM: | |
2054 | case SIM_SH_R6_REGNUM: case SIM_SH_R7_REGNUM: case SIM_SH_R8_REGNUM: | |
2055 | case SIM_SH_R9_REGNUM: case SIM_SH_R10_REGNUM: case SIM_SH_R11_REGNUM: | |
2056 | case SIM_SH_R12_REGNUM: case SIM_SH_R13_REGNUM: case SIM_SH_R14_REGNUM: | |
2057 | case SIM_SH_R15_REGNUM: | |
63978407 JR |
2058 | val = saved_state.asregs.regs[rn]; |
2059 | break; | |
2f14585c | 2060 | case SIM_SH_PC_REGNUM: |
63978407 JR |
2061 | val = saved_state.asregs.pc; |
2062 | break; | |
2f14585c | 2063 | case SIM_SH_PR_REGNUM: |
63978407 JR |
2064 | val = PR; |
2065 | break; | |
2f14585c | 2066 | case SIM_SH_GBR_REGNUM: |
63978407 JR |
2067 | val = GBR; |
2068 | break; | |
2f14585c | 2069 | case SIM_SH_VBR_REGNUM: |
63978407 JR |
2070 | val = VBR; |
2071 | break; | |
2f14585c | 2072 | case SIM_SH_MACH_REGNUM: |
63978407 JR |
2073 | val = MACH; |
2074 | break; | |
2f14585c | 2075 | case SIM_SH_MACL_REGNUM: |
63978407 JR |
2076 | val = MACL; |
2077 | break; | |
2f14585c | 2078 | case SIM_SH_SR_REGNUM: |
63978407 JR |
2079 | val = GET_SR (); |
2080 | break; | |
2f14585c | 2081 | case SIM_SH_FPUL_REGNUM: |
63978407 JR |
2082 | val = FPUL; |
2083 | break; | |
2f14585c | 2084 | case SIM_SH_FPSCR_REGNUM: |
63978407 JR |
2085 | val = GET_FPSCR (); |
2086 | break; | |
2f14585c JR |
2087 | case SIM_SH_FR0_REGNUM: case SIM_SH_FR1_REGNUM: case SIM_SH_FR2_REGNUM: |
2088 | case SIM_SH_FR3_REGNUM: case SIM_SH_FR4_REGNUM: case SIM_SH_FR5_REGNUM: | |
2089 | case SIM_SH_FR6_REGNUM: case SIM_SH_FR7_REGNUM: case SIM_SH_FR8_REGNUM: | |
2090 | case SIM_SH_FR9_REGNUM: case SIM_SH_FR10_REGNUM: case SIM_SH_FR11_REGNUM: | |
2091 | case SIM_SH_FR12_REGNUM: case SIM_SH_FR13_REGNUM: case SIM_SH_FR14_REGNUM: | |
2092 | case SIM_SH_FR15_REGNUM: | |
2093 | val = FI (rn - SIM_SH_FR0_REGNUM); | |
63978407 | 2094 | break; |
2f14585c JR |
2095 | case SIM_SH_DSR_REGNUM: |
2096 | val = DSR; | |
63978407 | 2097 | break; |
2f14585c JR |
2098 | case SIM_SH_A0G_REGNUM: |
2099 | val = SEXT (A0G); | |
63978407 | 2100 | break; |
2f14585c JR |
2101 | case SIM_SH_A0_REGNUM: |
2102 | val = A0; | |
63978407 | 2103 | break; |
2f14585c JR |
2104 | case SIM_SH_A1G_REGNUM: |
2105 | val = SEXT (A1G); | |
63978407 | 2106 | break; |
2f14585c JR |
2107 | case SIM_SH_A1_REGNUM: |
2108 | val = A1; | |
63978407 | 2109 | break; |
2f14585c JR |
2110 | case SIM_SH_M0_REGNUM: |
2111 | val = M0; | |
63978407 | 2112 | break; |
2f14585c JR |
2113 | case SIM_SH_M1_REGNUM: |
2114 | val = M1; | |
63978407 | 2115 | break; |
2f14585c JR |
2116 | case SIM_SH_X0_REGNUM: |
2117 | val = X0; | |
63978407 | 2118 | break; |
2f14585c JR |
2119 | case SIM_SH_X1_REGNUM: |
2120 | val = X1; | |
63978407 | 2121 | break; |
2f14585c JR |
2122 | case SIM_SH_Y0_REGNUM: |
2123 | val = Y0; | |
63978407 | 2124 | break; |
2f14585c JR |
2125 | case SIM_SH_Y1_REGNUM: |
2126 | val = Y1; | |
63978407 | 2127 | break; |
2f14585c JR |
2128 | case SIM_SH_MOD_REGNUM: |
2129 | val = MOD; | |
2130 | break; | |
2131 | case SIM_SH_RS_REGNUM: | |
2132 | val = RS; | |
2133 | break; | |
2134 | case SIM_SH_RE_REGNUM: | |
2135 | val = RE; | |
2136 | break; | |
2137 | case SIM_SH_SSR_REGNUM: | |
63978407 JR |
2138 | val = SSR; |
2139 | break; | |
2f14585c | 2140 | case SIM_SH_SPC_REGNUM: |
63978407 JR |
2141 | val = SPC; |
2142 | break; | |
2143 | /* The rn_bank idiosyncracies are not due to hardware differences, but to | |
2144 | a weird aliasing naming scheme for sh3 / sh3e / sh4. */ | |
2f14585c JR |
2145 | case SIM_SH_R0_BANK0_REGNUM: case SIM_SH_R1_BANK0_REGNUM: |
2146 | case SIM_SH_R2_BANK0_REGNUM: case SIM_SH_R3_BANK0_REGNUM: | |
2147 | case SIM_SH_R4_BANK0_REGNUM: case SIM_SH_R5_BANK0_REGNUM: | |
2148 | case SIM_SH_R6_BANK0_REGNUM: case SIM_SH_R7_BANK0_REGNUM: | |
2149 | val = (SR_MD && SR_RB | |
2150 | ? Rn_BANK (rn - SIM_SH_R0_BANK0_REGNUM) | |
2151 | : saved_state.asregs.regs[rn - SIM_SH_R0_BANK0_REGNUM]); | |
2152 | break; | |
2153 | case SIM_SH_R0_BANK1_REGNUM: case SIM_SH_R1_BANK1_REGNUM: | |
2154 | case SIM_SH_R2_BANK1_REGNUM: case SIM_SH_R3_BANK1_REGNUM: | |
2155 | case SIM_SH_R4_BANK1_REGNUM: case SIM_SH_R5_BANK1_REGNUM: | |
2156 | case SIM_SH_R6_BANK1_REGNUM: case SIM_SH_R7_BANK1_REGNUM: | |
2157 | val = (! SR_MD || ! SR_RB | |
2158 | ? Rn_BANK (rn - SIM_SH_R0_BANK1_REGNUM) | |
2159 | : saved_state.asregs.regs[rn - SIM_SH_R0_BANK1_REGNUM]); | |
2160 | break; | |
2161 | case SIM_SH_R0_BANK_REGNUM: case SIM_SH_R1_BANK_REGNUM: | |
2162 | case SIM_SH_R2_BANK_REGNUM: case SIM_SH_R3_BANK_REGNUM: | |
2163 | case SIM_SH_R4_BANK_REGNUM: case SIM_SH_R5_BANK_REGNUM: | |
2164 | case SIM_SH_R6_BANK_REGNUM: case SIM_SH_R7_BANK_REGNUM: | |
2165 | val = Rn_BANK (rn - SIM_SH_R0_BANK_REGNUM); | |
63978407 JR |
2166 | break; |
2167 | default: | |
2168 | return 0; | |
2169 | } | |
2170 | * (int *) memory = swap (val); | |
c906108c SS |
2171 | return -1; |
2172 | } | |
2173 | ||
2174 | int | |
2175 | sim_trace (sd) | |
2176 | SIM_DESC sd; | |
2177 | { | |
2178 | return 0; | |
2179 | } | |
2180 | ||
2181 | void | |
2182 | sim_stop_reason (sd, reason, sigrc) | |
2183 | SIM_DESC sd; | |
2184 | enum sim_stop *reason; | |
2185 | int *sigrc; | |
2186 | { | |
2187 | /* The SH simulator uses SIGQUIT to indicate that the program has | |
2188 | exited, so we must check for it here and translate it to exit. */ | |
2189 | if (saved_state.asregs.exception == SIGQUIT) | |
2190 | { | |
2191 | *reason = sim_exited; | |
2192 | *sigrc = saved_state.asregs.regs[5]; | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | *reason = sim_stopped; | |
2197 | *sigrc = saved_state.asregs.exception; | |
2198 | } | |
2199 | } | |
2200 | ||
2201 | void | |
2202 | sim_info (sd, verbose) | |
2203 | SIM_DESC sd; | |
2204 | int verbose; | |
2205 | { | |
2206 | double timetaken = (double) saved_state.asregs.ticks / (double) now_persec (); | |
2207 | double virttime = saved_state.asregs.cycles / 36.0e6; | |
2208 | ||
2209 | callback->printf_filtered (callback, "\n\n# instructions executed %10d\n", | |
2210 | saved_state.asregs.insts); | |
2211 | callback->printf_filtered (callback, "# cycles %10d\n", | |
2212 | saved_state.asregs.cycles); | |
2213 | callback->printf_filtered (callback, "# pipeline stalls %10d\n", | |
2214 | saved_state.asregs.stalls); | |
2215 | callback->printf_filtered (callback, "# misaligned load/store %10d\n", | |
2216 | saved_state.asregs.memstalls); | |
2217 | callback->printf_filtered (callback, "# real time taken %10.4f\n", | |
2218 | timetaken); | |
2219 | callback->printf_filtered (callback, "# virtual time taken %10.4f\n", | |
2220 | virttime); | |
2221 | callback->printf_filtered (callback, "# profiling size %10d\n", | |
2222 | sim_profile_size); | |
2223 | callback->printf_filtered (callback, "# profiling frequency %10d\n", | |
2224 | saved_state.asregs.profile); | |
2225 | callback->printf_filtered (callback, "# profile maxpc %10x\n", | |
2226 | (1 << sim_profile_size) << PROFILE_SHIFT); | |
2227 | ||
2228 | if (timetaken != 0) | |
2229 | { | |
2230 | callback->printf_filtered (callback, "# cycles/second %10d\n", | |
2231 | (int) (saved_state.asregs.cycles / timetaken)); | |
2232 | callback->printf_filtered (callback, "# simulation ratio %10.4f\n", | |
2233 | virttime / timetaken); | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | void | |
2238 | sim_set_profile (n) | |
2239 | int n; | |
2240 | { | |
2241 | saved_state.asregs.profile = n; | |
2242 | } | |
2243 | ||
2244 | void | |
2245 | sim_set_profile_size (n) | |
2246 | int n; | |
2247 | { | |
2248 | sim_profile_size = n; | |
2249 | } | |
2250 | ||
2251 | SIM_DESC | |
2252 | sim_open (kind, cb, abfd, argv) | |
2253 | SIM_OPEN_KIND kind; | |
2254 | host_callback *cb; | |
6b4a8935 | 2255 | struct bfd *abfd; |
c906108c SS |
2256 | char **argv; |
2257 | { | |
2258 | char **p; | |
2259 | int endian_set = 0; | |
63978407 JR |
2260 | int i; |
2261 | union | |
2262 | { | |
2263 | int i; | |
2264 | short s[2]; | |
2265 | char c[4]; | |
2266 | } | |
2267 | mem_word; | |
c906108c SS |
2268 | |
2269 | sim_kind = kind; | |
2270 | myname = argv[0]; | |
2271 | callback = cb; | |
2272 | ||
2273 | for (p = argv + 1; *p != NULL; ++p) | |
2274 | { | |
2275 | if (strcmp (*p, "-E") == 0) | |
2276 | { | |
2277 | ++p; | |
2278 | if (*p == NULL) | |
2279 | { | |
2280 | /* FIXME: This doesn't use stderr, but then the rest of the | |
2281 | file doesn't either. */ | |
2282 | callback->printf_filtered (callback, "Missing argument to `-E'.\n"); | |
2283 | return 0; | |
2284 | } | |
2285 | target_little_endian = strcmp (*p, "big") != 0; | |
2286 | endian_set = 1; | |
2287 | } | |
2288 | else if (isdigit (**p)) | |
2289 | parse_and_set_memory_size (*p); | |
2290 | } | |
2291 | ||
2292 | if (abfd != NULL && ! endian_set) | |
2293 | target_little_endian = ! bfd_big_endian (abfd); | |
2294 | ||
63978407 JR |
2295 | if (abfd) |
2296 | init_dsp (abfd); | |
2297 | ||
2298 | for (i = 4; (i -= 2) >= 0; ) | |
2299 | mem_word.s[i >> 1] = i; | |
2300 | global_endianw = mem_word.i >> (target_little_endian ? 0 : 16) & 0xffff; | |
2301 | ||
2302 | for (i = 4; --i >= 0; ) | |
2303 | mem_word.c[i] = i; | |
2304 | endianb = mem_word.i >> (target_little_endian ? 0 : 24) & 0xff; | |
2305 | ||
c906108c SS |
2306 | /* fudge our descriptor for now */ |
2307 | return (SIM_DESC) 1; | |
2308 | } | |
2309 | ||
2310 | static void | |
2311 | parse_and_set_memory_size (str) | |
2312 | char *str; | |
2313 | { | |
2314 | int n; | |
2315 | ||
2316 | n = strtol (str, NULL, 10); | |
2317 | if (n > 0 && n <= 24) | |
2318 | sim_memory_size = n; | |
2319 | else | |
2320 | callback->printf_filtered (callback, "Bad memory size %d; must be 1 to 24, inclusive\n", n); | |
2321 | } | |
2322 | ||
2323 | void | |
2324 | sim_close (sd, quitting) | |
2325 | SIM_DESC sd; | |
2326 | int quitting; | |
2327 | { | |
2328 | /* nothing to do */ | |
2329 | } | |
2330 | ||
2331 | SIM_RC | |
2332 | sim_load (sd, prog, abfd, from_tty) | |
2333 | SIM_DESC sd; | |
2334 | char *prog; | |
2335 | bfd *abfd; | |
2336 | int from_tty; | |
2337 | { | |
2338 | extern bfd *sim_load_file (); /* ??? Don't know where this should live. */ | |
2339 | bfd *prog_bfd; | |
2340 | ||
2341 | prog_bfd = sim_load_file (sd, myname, callback, prog, abfd, | |
2342 | sim_kind == SIM_OPEN_DEBUG, | |
2343 | 0, sim_write); | |
2344 | if (prog_bfd == NULL) | |
2345 | return SIM_RC_FAIL; | |
2346 | if (abfd == NULL) | |
2347 | bfd_close (prog_bfd); | |
2348 | return SIM_RC_OK; | |
2349 | } | |
2350 | ||
2351 | SIM_RC | |
2352 | sim_create_inferior (sd, prog_bfd, argv, env) | |
2353 | SIM_DESC sd; | |
6b4a8935 | 2354 | struct bfd *prog_bfd; |
c906108c SS |
2355 | char **argv; |
2356 | char **env; | |
2357 | { | |
de0492b6 | 2358 | /* Clear the registers. */ |
c906108c SS |
2359 | memset (&saved_state, 0, |
2360 | (char*)&saved_state.asregs.end_of_registers - (char*)&saved_state); | |
de0492b6 AO |
2361 | |
2362 | /* Set the PC. */ | |
c906108c SS |
2363 | if (prog_bfd != NULL) |
2364 | saved_state.asregs.pc = bfd_get_start_address (prog_bfd); | |
de0492b6 AO |
2365 | |
2366 | /* Record the program's arguments. */ | |
2367 | prog_argv = argv; | |
2368 | ||
c906108c SS |
2369 | return SIM_RC_OK; |
2370 | } | |
2371 | ||
2372 | void | |
2373 | sim_do_command (sd, cmd) | |
2374 | SIM_DESC sd; | |
2375 | char *cmd; | |
2376 | { | |
2377 | char *sms_cmd = "set-memory-size"; | |
2378 | int cmdsize; | |
2379 | ||
2380 | if (cmd == NULL || *cmd == '\0') | |
2381 | { | |
2382 | cmd = "help"; | |
2383 | } | |
2384 | ||
2385 | cmdsize = strlen (sms_cmd); | |
2386 | if (strncmp (cmd, sms_cmd, cmdsize) == 0 && strchr (" \t", cmd[cmdsize]) != NULL) | |
2387 | { | |
2388 | parse_and_set_memory_size (cmd + cmdsize + 1); | |
2389 | } | |
2390 | else if (strcmp (cmd, "help") == 0) | |
2391 | { | |
2392 | (callback->printf_filtered) (callback, "List of SH simulator commands:\n\n"); | |
2393 | (callback->printf_filtered) (callback, "set-memory-size <n> -- Set the number of address bits to use\n"); | |
2394 | (callback->printf_filtered) (callback, "\n"); | |
2395 | } | |
2396 | else | |
2397 | { | |
2398 | (callback->printf_filtered) (callback, "Error: \"%s\" is not a valid SH simulator command.\n", cmd); | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | void | |
2403 | sim_set_callbacks (p) | |
2404 | host_callback *p; | |
2405 | { | |
2406 | callback = p; | |
2407 | } |