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[/] [or1k_old/] [trunk/] [insight/] [sim/] [tic80/] [cpu.h] - Blame information for rev 1782

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1 578 markom
/* TIc80 Simulator.
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   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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   Contributed by Cygnus Support.
4
 
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This file is part of GDB, the GNU debugger.
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7
This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
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21
 
22
 
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/* TI C80 control registers */
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typedef enum {
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  EPC_CR,
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  EIP_CR,
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  CONFIG_CR,
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  INTPEN_CR,
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  IE_CR,
31
  FPST_CR,
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  PPERROR_CR,
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  PKTREQ_CR,
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  TCOUNT_CR,
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  TSCALE_CR,
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  FLTOP_CR,
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  FLTADR_CR,
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  FLTTAG_CR,
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  FLTDLT_CR,
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  FLTDTH_CR,
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  FLT005_CR,
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  FLT006_CR,
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  FLT007_CR,
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  FLT008_CR,
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  FLT009_CR,
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  FLT010_CR,
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  FLT011_CR,
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  FLT012_CR,
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  FLT013_CR,
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  FLT014_CR,
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  FLT015_CR,
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  SYSSTK_CR,
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  SYSTMP_CR,
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  MPC_CR,
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  MIP_CR,
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  ECOMCNTL_CR,
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  ANASTAT_CR,
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  BRK1_CR,
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  BRK2_CR,
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  ITAG0_CR,
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  ITAG1_CR,
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  ITAG2_CR,
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  ITAG3_CR,
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  ITAG4_CR,
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  ITAG5_CR,
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  ITAG6_CR,
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  ITAG7_CR,
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  ITAG8_CR,
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  ITAG9_CR,
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  ITAG10_CR,
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  ITAG11_CR,
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  ITAG12_CR,
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  ITAG13_CR,
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  ITAG14_CR,
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  ITAG15_CR,
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  ILRU_CR,
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  DTAG0_CR,
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  DTAG1_CR,
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  DTAG2_CR,
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  DTAG3_CR,
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  DTAG4_CR,
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  DTAG5_CR,
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  DTAG6_CR,
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  DTAG7_CR,
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  DTAG8_CR,
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  DTAG9_CR,
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  DTAG10_CR,
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  DTAG11_CR,
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  DTAG12_CR,
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  DTAG13_CR,
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  DTAG14_CR,
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  DTAG15_CR,
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  DLRU_CR,
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  IN0P_CR,
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  IN1P_CR,
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  OUTP_CR,
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  SCRATCH_CR,
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  nr_tic80_control_regs,
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} tic80_control_regs;
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101
/* extern int tic80_cr2index (tic80_control_regs reg); */
102
 
103
/* Map an instruction CR index onto the corresponding internal cr enum
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   or SCRATCH_CR if the index is invalid */
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106
extern tic80_control_regs tic80_index2cr (int index);
107
 
108
 
109
/* TIc80 interrupt register bits */
110
 
111
enum {
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  IE_CR_PE = BIT32(31),
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  IE_CR_X4 = BIT32(30),
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  IE_CR_X3 = BIT32(29),
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  IE_CR_BP = BIT32(28),
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  IE_CR_PB = BIT32(27),
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  IE_CR_PC = BIT32(26),
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  IE_CR_MI = BIT32(25),
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  /**/
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  IE_CR_P3 = BIT32(19),
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  IE_CR_P2 = BIT32(18),
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  IE_CR_P1 = BIT32(17),
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  IE_CR_P0 = BIT32(16),
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  IE_CR_IO = BIT32(15),
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  IE_CR_MF = BIT32(14),
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  /**/
127
  IE_CR_X2 = BIT32(12),
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  IE_CR_X1 = BIT32(11),
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  IE_CR_TI = BIT32(10),
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  IE_CR_F1 = BIT32(9),
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  IE_CR_F0 = BIT32(8),
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  IE_CR_FX = BIT32(7),
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  IE_CR_FU = BIT32(6),
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  IE_CR_FO = BIT32(5),
135
  /**/
136
  IE_CR_FZ = BIT32(3),
137
  IE_CR_FI = BIT32(2),
138
  /**/
139
  IE_CR_IE = BIT32(0),
140
};
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142
 
143
 
144
 
145
struct _sim_cpu {
146
  unsigned32 reg[32];
147
  unsigned64 acc[4];
148
  unsigned32 cr[nr_tic80_control_regs];
149
  int is_user_mode; /* hidden mode latch */
150
  sim_cia cia;
151
  sim_cpu_base base;
152
};
153
 
154
#define CIA_GET(CPU) ((CPU)->cia)
155
#define CIA_SET(CPU,VAL) ((CPU)->cia = (VAL))
156
 
157
#define GPR(N) ((CPU)->reg[N])
158
#define GPR_CLEAR(N) (GPR((N)) = 0)
159
#define ACC(N) ((CPU)->acc[N])
160
#define CR(N) ((CPU)->cr[tic80_index2cr ((N))])
161
 
162
 
163
 
164
#if defined(WITH_TRACE)
165
extern char *tic80_trace_alu3     PARAMS ((int, unsigned32, unsigned32, unsigned32));
166
extern char *tic80_trace_cmp      PARAMS ((int, unsigned32, unsigned32, unsigned32));
167
extern char *tic80_trace_alu2     PARAMS ((int, unsigned32, unsigned32));
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extern char *tic80_trace_shift    PARAMS ((int, unsigned32, unsigned32, int, int, int, int, int));
169
extern void tic80_trace_fpu3      PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *, sim_fpu *, sim_fpu *));
170
extern void tic80_trace_fpu2      PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *, sim_fpu *));
171
extern void tic80_trace_fpu1      PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, sim_fpu *));
172
extern void tic80_trace_fpu2i     PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, unsigned32, sim_fpu *, sim_fpu *));
173
extern void tic80_trace_fpu2cmp   PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, unsigned32, sim_fpu *, sim_fpu *));
174
extern char *tic80_trace_nop      PARAMS ((int));
175
extern char *tic80_trace_sink1    PARAMS ((int, unsigned32));
176
extern char *tic80_trace_sink2    PARAMS ((int, unsigned32, unsigned32));
177
extern char *tic80_trace_sink3    PARAMS ((int, unsigned32, unsigned32, unsigned32));
178
extern char *tic80_trace_cond_br  PARAMS ((int, int, unsigned32, unsigned32, int, int));
179
extern char *tic80_trace_ucond_br PARAMS ((int, unsigned32));
180
extern void tic80_trace_ldst      PARAMS ((SIM_DESC, sim_cpu *, sim_cia, int, int, int, int, unsigned32, unsigned32, unsigned32));
181
 
182
#define TRACE_ALU3(indx, result, input1, input2)                        \
183
do {                                                                    \
184
  if (TRACE_ALU_P (CPU)) {                                              \
185
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
186
                    itable[indx].line_nr, "alu",                        \
187
                    tic80_trace_alu3 (indx, result, input1, input2));   \
188
  }                                                                     \
189
} while (0)
190
 
191
#define TRACE_CMP(indx, result, input1, input2)                         \
192
do {                                                                    \
193
  if (TRACE_ALU_P (CPU)) {                                              \
194
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
195
                    itable[indx].line_nr, "alu",                        \
196
                    tic80_trace_cmp (indx, result, input1, input2));    \
197
  }                                                                     \
198
} while (0)
199
 
200
#define TRACE_ALU2(indx, result, input)                                 \
201
do {                                                                    \
202
  if (TRACE_ALU_P (CPU)) {                                              \
203
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
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                    itable[indx].line_nr, "alu",                        \
205
                    tic80_trace_alu2 (indx, result, input));            \
206
  }                                                                     \
207
} while (0)
208
 
209
#define TRACE_SHIFT(indx, result, input, i, n, merge, endmask, rotate)  \
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do {                                                                    \
211
  if (TRACE_ALU_P (CPU)) {                                              \
212
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
213
                    itable[indx].line_nr, "shift",                      \
214
                    tic80_trace_shift (indx, result, input, i, n,       \
215
                                       merge, endmask, rotate));        \
216
  }                                                                     \
217
} while (0)
218
 
219
#define TRACE_FPU3(result, input1, input2)                              \
220
do {                                                                    \
221
  if (TRACE_FPU_P (CPU)) {                                              \
222
    tic80_trace_fpu3 (SD, CPU, cia, MY_INDEX,                           \
223
                      &result, &input1, &input2);                       \
224
  }                                                                     \
225
} while (0)
226
 
227
#define TRACE_FPU2(result, input)                                       \
228
do {                                                                    \
229
  if (TRACE_FPU_P (CPU)) {                                              \
230
    tic80_trace_fpu2 (SD, CPU, cia, MY_INDEX,                           \
231
                      &result, &input);                                 \
232
  }                                                                     \
233
} while (0)
234
 
235
#define TRACE_FPU1(result)                                              \
236
do {                                                                    \
237
  if (TRACE_FPU_P (CPU)) {                                              \
238
    tic80_trace_fpu1 (SD, CPU, cia, MY_INDEX,                           \
239
                      &result);                                         \
240
  }                                                                     \
241
} while (0)
242
 
243
#define TRACE_FPU2I(result, input1, input2)                             \
244
do {                                                                    \
245
  if (TRACE_FPU_P (CPU)) {                                              \
246
    tic80_trace_fpu2i (SD, CPU, cia, MY_INDEX,                          \
247
                       result, &input1, &input2);                       \
248
  }                                                                     \
249
} while (0)
250
 
251
#define TRACE_FPU2CMP(result, input1, input2)                           \
252
do {                                                                    \
253
  if (TRACE_FPU_P (CPU)) {                                              \
254
    tic80_trace_fpu2cmp (SD, CPU, cia, MY_INDEX,                        \
255
                         result, &input1, &input2);                     \
256
  }                                                                     \
257
} while (0)
258
 
259
#define TRACE_NOP(indx)                                                 \
260
do {                                                                    \
261
  if (TRACE_ALU_P (CPU)) {                                              \
262
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
263
                    itable[indx].line_nr, "nop",                        \
264
                    tic80_trace_nop (indx));                            \
265
  }                                                                     \
266
} while (0)
267
 
268
#define TRACE_SINK1(indx, input)                                        \
269
do {                                                                    \
270
  if (TRACE_ALU_P (CPU)) {                                              \
271
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
272
                    itable[indx].line_nr, "nop",                        \
273
                    tic80_trace_sink1 (indx, input));                   \
274
  }                                                                     \
275
} while (0)
276
 
277
#define TRACE_SINK2(indx, input1, input2)                               \
278
do {                                                                    \
279
  if (TRACE_ALU_P (CPU)) {                                              \
280
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
281
                    itable[indx].line_nr, "nop",                        \
282
                    tic80_trace_sink2 (indx, input1, input2));          \
283
  }                                                                     \
284
} while (0)
285
 
286
#define TRACE_SINK3(indx, input1, input2, input3)                       \
287
do {                                                                    \
288
  if (TRACE_ALU_P (CPU)) {                                              \
289
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
290
                    itable[indx].line_nr, "nop",                        \
291
                    tic80_trace_sink3 (indx, input1, input2, input3));  \
292
  }                                                                     \
293
} while (0)
294
 
295
#define TRACE_COND_BR(indx, jump_p, cond, target, size, code)           \
296
do {                                                                    \
297
  if (TRACE_BRANCH_P (CPU)) {                                           \
298
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
299
                    itable[indx].line_nr, "branch",                     \
300
                    tic80_trace_cond_br (indx, jump_p, cond, target,    \
301
                                         size, code));                  \
302
  }                                                                     \
303
} while (0)
304
 
305
#define TRACE_UCOND_BR(indx, target)                                    \
306
do {                                                                    \
307
  if (TRACE_BRANCH_P (CPU)) {                                           \
308
    trace_one_insn (SD, CPU, cia.ip, 1, itable[indx].file,              \
309
                    itable[indx].line_nr, "branch",                     \
310
                    tic80_trace_ucond_br (indx, target));               \
311
  }                                                                     \
312
} while (0)
313
 
314
#define TRACE_LD(result, m, s, addr1, addr2)                            \
315
do {                                                                    \
316
  if (TRACE_MEMORY_P (CPU)) {                                           \
317
    tic80_trace_ldst (SD, CPU, cia, MY_INDEX,                           \
318
                      0, m, s, result, addr1, addr2);                    \
319
  }                                                                     \
320
} while (0)
321
 
322
#define TRACE_ST(value, m, s, addr1, addr2)                             \
323
do {                                                                    \
324
  if (TRACE_MEMORY_P (CPU)) {                                           \
325
    tic80_trace_ldst (SD, CPU, cia, MY_INDEX,                           \
326
                      1, m, s, value, addr1, addr2);                    \
327
  }                                                                     \
328
} while (0)
329
 
330
#else
331
#define TRACE_ALU3(indx, result, input1, input2)
332
#define TRACE_ALU2(indx, result, input)
333
#define TRACE_FPU3(result, input1, input2)
334
#define TRACE_FPU2(result, input)
335
#define TRACE_FPU1(result)
336
#define TRACE_FPU2I(result, input1, input2)
337
#define TRACE_NOP(indx)
338
#define TRACE_SINK1(indx, input)
339
#define TRACE_SINK2(indx, input1, input2)
340
#define TRACE_SINK3(indx, input1, input2, input3)
341
#define TRACE_COND_BR(indx, jump_p, cond, target, size, code)
342
#define TRACE_UCOND_BR(indx, target)
343
#define TRACE_LD(m, s, result, addr1, addr2)
344
#define TRACE_ST(m, s, value, addr1, addr2)
345
#endif

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