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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [sim/] [v850/] [sim-main.h] - Blame information for rev 856

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1 24 jeremybenn
#ifndef SIM_MAIN_H
2
#define SIM_MAIN_H
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4
/* General config options */
5
 
6
#define WITH_CORE
7
#define WITH_MODULO_MEMORY 1
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#define WITH_WATCHPOINTS 1
9
 
10
 
11
/* The v850 has 32bit words, numbered 31 (MSB) to 0 (LSB) */
12
 
13
#define WITH_TARGET_WORD_MSB 31
14
 
15
 
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#include "sim-basics.h"
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#include "sim-signal.h"
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typedef address_word sim_cia;
20
 
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#include "sim-base.h"
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#include "simops.h"
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#include "bfd.h"
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26
 
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typedef signed8 int8;
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typedef unsigned8 uint8;
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typedef signed16 int16;
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typedef unsigned16 uint16;
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typedef signed32 int32;
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typedef unsigned32 uint32;
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typedef unsigned32 reg_t;
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35
 
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/* The current state of the processor; registers, memory, etc.  */
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typedef struct _v850_regs {
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  reg_t regs[32];               /* general-purpose registers */
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  reg_t sregs[32];              /* system registers, including psw */
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  reg_t pc;
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  int dummy_mem;                /* where invalid accesses go */
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} v850_regs;
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struct _sim_cpu
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{
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  /* ... simulator specific members ... */
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  v850_regs reg;
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  reg_t psw_mask;               /* only allow non-reserved bits to be set */
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  sim_event *pending_nmi;
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  /* ... base type ... */
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  sim_cpu_base base;
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};
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#define CIA_GET(CPU) ((CPU)->reg.pc + 0)
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#define CIA_SET(CPU,VAL) ((CPU)->reg.pc = (VAL))
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struct sim_state {
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  sim_cpu cpu[MAX_NR_PROCESSORS];
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#if (WITH_SMP)
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#define STATE_CPU(sd,n) (&(sd)->cpu[n])
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#else
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#define STATE_CPU(sd,n) (&(sd)->cpu[0])
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#endif
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#if 0
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  SIM_ADDR rom_size;
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  SIM_ADDR low_end;
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  SIM_ADDR high_start;
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  SIM_ADDR high_base;
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  void *mem;
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#endif
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  sim_state_base base;
73
};
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/* For compatibility, until all functions converted to passing
76
   SIM_DESC as an argument */
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extern SIM_DESC simulator;
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79
 
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#define V850_ROM_SIZE 0x8000
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#define V850_LOW_END 0x200000
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#define V850_HIGH_START 0xffe000
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84
 
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/* Because we are still using the old semantic table, provide compat
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   macro's that store the instruction where the old simops expects
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   it. */
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extern uint32 OP[4];
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#if 0
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OP[0] = inst & 0x1f;           /* RRRRR -> reg1 */
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OP[1] = (inst >> 11) & 0x1f;   /* rrrrr -> reg2 */
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OP[2] = (inst >> 16) & 0xffff; /* wwwww -> reg3 OR imm16 */
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OP[3] = inst;
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#endif
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#define SAVE_1 \
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PC = cia; \
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OP[0] = instruction_0 & 0x1f; \
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OP[1] = (instruction_0 >> 11) & 0x1f; \
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OP[2] = 0; \
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OP[3] = instruction_0
103
 
104
#define COMPAT_1(CALL) \
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SAVE_1; \
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PC += (CALL); \
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nia = PC
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109
#define SAVE_2 \
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PC = cia; \
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OP[0] = instruction_0 & 0x1f; \
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OP[1] = (instruction_0 >> 11) & 0x1f; \
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OP[2] = instruction_1; \
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OP[3] = (instruction_1 << 16) | instruction_0
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116
#define COMPAT_2(CALL) \
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SAVE_2; \
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PC += (CALL); \
119
nia = PC
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121
 
122
/* new */
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#define GR  ((CPU)->reg.regs)
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#define SR  ((CPU)->reg.sregs)
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126
/* old */
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#define State    (STATE_CPU (simulator, 0)->reg)
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#define PC      (State.pc)
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#define SP      (State.regs[3])
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#define EP      (State.regs[30])
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132
#define EIPC  (State.sregs[0])
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#define EIPSW (State.sregs[1])
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#define FEPC  (State.sregs[2])
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#define FEPSW (State.sregs[3])
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#define ECR   (State.sregs[4])
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#define PSW   (State.sregs[5])
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#define CTPC  (SR[16])
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#define CTPSW (SR[17])
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#define DBPC  (State.sregs[18])
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#define DBPSW (State.sregs[19])
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#define CTBP  (State.sregs[20])
143
 
144
#define PSW_US BIT32 (8)
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#define PSW_NP 0x80
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#define PSW_EP 0x40
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#define PSW_ID 0x20
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#define PSW_SAT 0x10
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#define PSW_CY 0x8
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#define PSW_OV 0x4
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#define PSW_S 0x2
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#define PSW_Z 0x1
153
 
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#define SEXT3(x)        ((((x)&0x7)^(~0x3))+0x4)        
155
 
156
/* sign-extend a 4-bit number */
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#define SEXT4(x)        ((((x)&0xf)^(~0x7))+0x8)        
158
 
159
/* sign-extend a 5-bit number */
160
#define SEXT5(x)        ((((x)&0x1f)^(~0xf))+0x10)      
161
 
162
/* sign-extend a 9-bit number */
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#define SEXT9(x)        ((((x)&0x1ff)^(~0xff))+0x100)
164
 
165
/* sign-extend a 22-bit number */
166
#define SEXT22(x)       ((((x)&0x3fffff)^(~0x1fffff))+0x200000)
167
 
168
/* sign extend a 40 bit number */
169
#define SEXT40(x)       ((((x) & UNSIGNED64 (0xffffffffff)) \
170
                          ^ (~UNSIGNED64 (0x7fffffffff))) \
171
                         + UNSIGNED64 (0x8000000000))
172
 
173
/* sign extend a 44 bit number */
174
#define SEXT44(x)       ((((x) & UNSIGNED64 (0xfffffffffff)) \
175
                          ^ (~ UNSIGNED64 (0x7ffffffffff))) \
176
                         + UNSIGNED64 (0x80000000000))
177
 
178
/* sign extend a 60 bit number */
179
#define SEXT60(x)       ((((x) & UNSIGNED64 (0xfffffffffffffff)) \
180
                          ^ (~ UNSIGNED64 (0x7ffffffffffffff))) \
181
                         + UNSIGNED64 (0x800000000000000))
182
 
183
/* No sign extension */
184
#define NOP(x)          (x)
185
 
186
#define INC_ADDR(x,i)   x = ((State.MD && x == MOD_E) ? MOD_S : (x)+(i))
187
 
188
#define RLW(x) load_mem (x, 4)
189
 
190
/* Function declarations.  */
191
 
192
#define IMEM16(EA) \
193
sim_core_read_aligned_2 (CPU, PC, exec_map, (EA))
194
 
195
#define IMEM16_IMMED(EA,N) \
196
sim_core_read_aligned_2 (STATE_CPU (sd, 0), \
197
                         PC, exec_map, (EA) + (N) * 2)
198
 
199
#define load_mem(ADDR,LEN) \
200
sim_core_read_unaligned_##LEN (STATE_CPU (simulator, 0), \
201
                               PC, read_map, (ADDR))
202
 
203
#define store_mem(ADDR,LEN,DATA) \
204
sim_core_write_unaligned_##LEN (STATE_CPU (simulator, 0), \
205
                                PC, write_map, (ADDR), (DATA))
206
 
207
 
208
/* compare cccc field against PSW */
209
int condition_met (unsigned code);
210
 
211
 
212
/* Debug/tracing calls */
213
 
214
enum op_types
215
{
216
  OP_UNKNOWN,
217
  OP_NONE,
218
  OP_TRAP,
219
  OP_REG,
220
  OP_REG_REG,
221
  OP_REG_REG_CMP,
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  OP_REG_REG_MOVE,
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  OP_IMM_REG,
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  OP_IMM_REG_CMP,
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  OP_IMM_REG_MOVE,
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  OP_COND_BR,
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  OP_LOAD16,
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  OP_STORE16,
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  OP_LOAD32,
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  OP_STORE32,
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  OP_JUMP,
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  OP_IMM_REG_REG,
233
  OP_UIMM_REG_REG,
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  OP_IMM16_REG_REG,
235
  OP_UIMM16_REG_REG,
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  OP_BIT,
237
  OP_EX1,
238
  OP_EX2,
239
  OP_LDSR,
240
  OP_STSR,
241
  OP_BIT_CHANGE,
242
  OP_REG_REG_REG,
243
  OP_REG_REG3,
244
  OP_IMM_REG_REG_REG,
245
  OP_PUSHPOP1,
246
  OP_PUSHPOP2,
247
  OP_PUSHPOP3,
248
};
249
 
250
#ifdef DEBUG
251
void trace_input PARAMS ((char *name, enum op_types type, int size));
252
void trace_output PARAMS ((enum op_types result));
253
void trace_result PARAMS ((int has_result, unsigned32 result));
254
 
255
extern int trace_num_values;
256
extern unsigned32 trace_values[];
257
extern unsigned32 trace_pc;
258
extern const char *trace_name;
259
extern int trace_module;
260
 
261
#define TRACE_BRANCH0() \
262
do { \
263
  if (TRACE_BRANCH_P (CPU)) { \
264
    trace_module = TRACE_BRANCH_IDX; \
265
    trace_pc = cia; \
266
    trace_name = itable[MY_INDEX].name; \
267
    trace_num_values = 0; \
268
    trace_result (1, (nia)); \
269
  } \
270
} while (0)
271
 
272
#define TRACE_BRANCH1(IN1) \
273
do { \
274
  if (TRACE_BRANCH_P (CPU)) { \
275
    trace_module = TRACE_BRANCH_IDX; \
276
    trace_pc = cia; \
277
    trace_name = itable[MY_INDEX].name; \
278
    trace_values[0] = (IN1); \
279
    trace_num_values = 1; \
280
    trace_result (1, (nia)); \
281
  } \
282
} while (0)
283
 
284
#define TRACE_BRANCH2(IN1, IN2) \
285
do { \
286
  if (TRACE_BRANCH_P (CPU)) { \
287
    trace_module = TRACE_BRANCH_IDX; \
288
    trace_pc = cia; \
289
    trace_name = itable[MY_INDEX].name; \
290
    trace_values[0] = (IN1); \
291
    trace_values[1] = (IN2); \
292
    trace_num_values = 2; \
293
    trace_result (1, (nia)); \
294
  } \
295
} while (0)
296
 
297
#define TRACE_BRANCH3(IN1, IN2, IN3) \
298
do { \
299
  if (TRACE_BRANCH_P (CPU)) { \
300
    trace_module = TRACE_BRANCH_IDX; \
301
    trace_pc = cia; \
302
    trace_name = itable[MY_INDEX].name; \
303
    trace_values[0] = (IN1); \
304
    trace_values[1] = (IN2); \
305
    trace_values[2] = (IN3); \
306
    trace_num_values = 3; \
307
    trace_result (1, (nia)); \
308
  } \
309
} while (0)
310
 
311
#define TRACE_LD(ADDR,RESULT) \
312
do { \
313
  if (TRACE_MEMORY_P (CPU)) { \
314
    trace_module = TRACE_MEMORY_IDX; \
315
    trace_pc = cia; \
316
    trace_name = itable[MY_INDEX].name; \
317
    trace_values[0] = (ADDR); \
318
    trace_num_values = 1; \
319
    trace_result (1, (RESULT)); \
320
  } \
321
} while (0)
322
 
323
#define TRACE_LD_NAME(NAME, ADDR,RESULT) \
324
do { \
325
  if (TRACE_MEMORY_P (CPU)) { \
326
    trace_module = TRACE_MEMORY_IDX; \
327
    trace_pc = cia; \
328
    trace_name = (NAME); \
329
    trace_values[0] = (ADDR); \
330
    trace_num_values = 1; \
331
    trace_result (1, (RESULT)); \
332
  } \
333
} while (0)
334
 
335
#define TRACE_ST(ADDR,RESULT) \
336
do { \
337
  if (TRACE_MEMORY_P (CPU)) { \
338
    trace_module = TRACE_MEMORY_IDX; \
339
    trace_pc = cia; \
340
    trace_name = itable[MY_INDEX].name; \
341
    trace_values[0] = (ADDR); \
342
    trace_num_values = 1; \
343
    trace_result (1, (RESULT)); \
344
  } \
345
} while (0)
346
 
347
#else
348
#define trace_input(NAME, IN1, IN2)
349
#define trace_output(RESULT)
350
#define trace_result(HAS_RESULT, RESULT)
351
 
352
#define TRACE_ALU_INPUT0()
353
#define TRACE_ALU_INPUT1(IN0)
354
#define TRACE_ALU_INPUT2(IN0, IN1)
355
#define TRACE_ALU_INPUT2(IN0, IN1)
356
#define TRACE_ALU_INPUT2(IN0, IN1 INS2)
357
#define TRACE_ALU_RESULT(RESULT)
358
 
359
#define TRACE_BRANCH0()
360
#define TRACE_BRANCH1(IN1)
361
#define TRACE_BRANCH2(IN1, IN2)
362
#define TRACE_BRANCH2(IN1, IN2, IN3)
363
 
364
#define TRACE_LD(ADDR,RESULT)
365
#define TRACE_ST(ADDR,RESULT)
366
 
367
#endif
368
 
369
#define GPR_SET(N, VAL) (State.regs[(N)] = (VAL))
370
#define GPR_CLEAR(N)    (State.regs[(N)] = 0)
371
 
372
extern void divun ( unsigned int       N,
373
                    unsigned long int  als,
374
                    unsigned long int  sfi,
375
                    unsigned32 /*unsigned long int*/ *  quotient_ptr,
376
                    unsigned32 /*unsigned long int*/ *  remainder_ptr,
377
                    int *overflow_ptr
378
                    );
379
extern void divn ( unsigned int       N,
380
                   unsigned long int  als,
381
                   unsigned long int  sfi,
382
                   signed32 /*signed long int*/ *  quotient_ptr,
383
                   signed32 /*signed long int*/ *  remainder_ptr,
384
                   int *overflow_ptr
385
                   );
386
extern int type1_regs[];
387
extern int type2_regs[];
388
extern int type3_regs[];
389
 
390
#endif

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