Home | History | Annotate | Line # | Download | only in ppc
gen-model.c revision 1.1.1.2
      1 /*  This file is part of the program psim.
      2 
      3     Copyright (C) 1994-1995, Andrew Cagney <cagney (at) highland.com.au>
      4 
      5     This program is free software; you can redistribute it and/or modify
      6     it under the terms of the GNU General Public License as published by
      7     the Free Software Foundation; either version 3 of the License, or
      8     (at your option) any later version.
      9 
     10     This program is distributed in the hope that it will be useful,
     11     but WITHOUT ANY WARRANTY; without even the implied warranty of
     12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13     GNU General Public License for more details.
     14 
     15     You should have received a copy of the GNU General Public License
     16     along with this program; if not, see <http://www.gnu.org/licenses/>.
     17 
     18     */
     19 
     20 
     21 #include "misc.h"
     22 #include "lf.h"
     23 #include "table.h"
     24 
     25 #include "filter.h"
     26 
     27 #include "ld-cache.h"
     28 #include "ld-decode.h"
     29 #include "ld-insn.h"
     30 
     31 #include "gen-model.h"
     32 
     33 
     34 static void
     35 model_c_or_h_data(insn_table *table,
     36 		  lf *file,
     37 		  table_entry *data)
     38 {
     39   if (data->annex) {
     40     table_entry_print_cpp_line_nr(file, data);
     41     lf_print__c_code(file, data->annex);
     42     lf_print__internal_reference(file);
     43     lf_printf(file, "\n");
     44   }
     45 }
     46 
     47 static void
     48 model_c_or_h_function(insn_table *entry,
     49 		      lf *file,
     50 		      table_entry *function,
     51 		      const char *prefix)
     52 {
     53   if (function->fields[function_type] == NULL
     54       || function->fields[function_type][0] == '\0') {
     55     error("Model function type not specified for %s", function->fields[function_name]);
     56   }
     57   lf_printf(file, "\n");
     58   lf_print_function_type(file, function->fields[function_type], prefix, " ");
     59   lf_printf(file, "%s\n(%s);\n",
     60 	    function->fields[function_name],
     61 	    function->fields[function_param]);
     62   lf_printf(file, "\n");
     63 }
     64 
     65 void
     66 gen_model_h(insn_table *table, lf *file)
     67 {
     68   insn *insn_ptr;
     69   model *model_ptr;
     70   insn *macro;
     71   const char *name;
     72   int model_create_p = 0;
     73   int model_init_p = 0;
     74   int model_halt_p = 0;
     75   int model_mon_info_p = 0;
     76   int model_mon_info_free_p = 0;
     77 
     78   for(macro = model_macros; macro; macro = macro->next) {
     79     model_c_or_h_data(table, file, macro->file_entry);
     80   }
     81 
     82   lf_printf(file, "typedef enum _model_enum {\n");
     83   lf_printf(file, "  MODEL_NONE,\n");
     84   for (model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
     85     lf_printf(file, "  MODEL_%s,\n", model_ptr->name);
     86   }
     87   lf_printf(file, "  nr_models\n");
     88   lf_printf(file, "} model_enum;\n");
     89   lf_printf(file, "\n");
     90 
     91   lf_printf(file, "#define DEFAULT_MODEL MODEL_%s\n", (models) ? models->name : "NONE");
     92   lf_printf(file, "\n");
     93 
     94   lf_printf(file, "typedef struct _model_data model_data;\n");
     95   lf_printf(file, "typedef struct _model_time model_time;\n");
     96   lf_printf(file, "\n");
     97 
     98   lf_printf(file, "extern model_enum current_model;\n");
     99   lf_printf(file, "extern const char *model_name[ (int)nr_models ];\n");
    100   lf_printf(file, "extern const char *const *const model_func_unit_name[ (int)nr_models ];\n");
    101   lf_printf(file, "extern const model_time *const model_time_mapping[ (int)nr_models ];\n");
    102   lf_printf(file, "\n");
    103 
    104   for(insn_ptr = model_functions; insn_ptr; insn_ptr = insn_ptr->next) {
    105     model_c_or_h_function(table, file, insn_ptr->file_entry, "INLINE_MODEL");
    106     name = insn_ptr->file_entry->fields[function_name];
    107     if (strcmp (name, "model_create") == 0)
    108       model_create_p = 1;
    109     else if (strcmp (name, "model_init") == 0)
    110       model_init_p = 1;
    111     else if (strcmp (name, "model_halt") == 0)
    112       model_halt_p = 1;
    113     else if (strcmp (name, "model_mon_info") == 0)
    114       model_mon_info_p = 1;
    115     else if (strcmp (name, "model_mon_info_free") == 0)
    116       model_mon_info_free_p = 1;
    117   }
    118 
    119   if (!model_create_p) {
    120     lf_print_function_type(file, "model_data *", "INLINE_MODEL", " ");
    121     lf_printf(file, "model_create\n");
    122     lf_printf(file, "(cpu *processor);\n");
    123     lf_printf(file, "\n");
    124   }
    125 
    126   if (!model_init_p) {
    127     lf_print_function_type(file, "void", "INLINE_MODEL", " ");
    128     lf_printf(file, "model_init\n");
    129     lf_printf(file, "(model_data *model_ptr);\n");
    130     lf_printf(file, "\n");
    131   }
    132 
    133   if (!model_halt_p) {
    134     lf_print_function_type(file, "void", "INLINE_MODEL", " ");
    135     lf_printf(file, "model_halt\n");
    136     lf_printf(file, "(model_data *model_ptr);\n");
    137     lf_printf(file, "\n");
    138   }
    139 
    140   if (!model_mon_info_p) {
    141     lf_print_function_type(file, "model_print *", "INLINE_MODEL", " ");
    142     lf_printf(file, "model_mon_info\n");
    143     lf_printf(file, "(model_data *model_ptr);\n");
    144     lf_printf(file, "\n");
    145   }
    146 
    147   if (!model_mon_info_free_p) {
    148     lf_print_function_type(file, "void", "INLINE_MODEL", " ");
    149     lf_printf(file, "model_mon_info_free\n");
    150     lf_printf(file, "(model_data *model_ptr,\n");
    151     lf_printf(file, " model_print *info_ptr);\n");
    152     lf_printf(file, "\n");
    153   }
    154 
    155   lf_print_function_type(file, "void", "INLINE_MODEL", " ");
    156   lf_printf(file, "model_set\n");
    157   lf_printf(file, "(const char *name);\n");
    158 }
    159 
    160 /****************************************************************/
    161 
    162 typedef struct _model_c_passed_data model_c_passed_data;
    163 struct _model_c_passed_data {
    164   lf *file;
    165   model *model_ptr;
    166 };
    167 
    168 static void
    169 model_c_insn(insn_table *entry,
    170 	     lf *phony_file,
    171 	     void *data,
    172 	     insn *instruction,
    173 	     int depth)
    174 {
    175   model_c_passed_data *data_ptr = (model_c_passed_data *)data;
    176   lf *file = data_ptr->file;
    177   const char *current_name = data_ptr->model_ptr->printable_name;
    178   table_model_entry *model_ptr = instruction->file_entry->model_first;
    179 
    180   while (model_ptr) {
    181     if (model_ptr->fields[insn_model_name] == current_name) {
    182       lf_printf(file, "  { %-*s },  /* %s */\n",
    183 		max_model_fields_len,
    184 		model_ptr->fields[insn_model_fields],
    185 		instruction->file_entry->fields[insn_name]);
    186       return;
    187     }
    188 
    189     model_ptr = model_ptr->next;
    190   }
    191 
    192   lf_printf(file, "  { %-*s },  /* %s */\n",
    193 	    max_model_fields_len,
    194 	    data_ptr->model_ptr->insn_default,
    195 	    instruction->file_entry->fields[insn_name]);
    196 }
    197 
    198 static void
    199 model_c_function(insn_table *table,
    200 		 lf *file,
    201 		 table_entry *function,
    202 		 const char *prefix)
    203 {
    204   if (function->fields[function_type] == NULL
    205       || function->fields[function_type][0] == '\0') {
    206     error("Model function return type not specified for %s", function->fields[function_name]);
    207   }
    208   else {
    209     lf_printf(file, "\n");
    210     lf_print_function_type(file, function->fields[function_type], prefix, "\n");
    211     lf_printf(file, "%s(%s)\n",
    212 	      function->fields[function_name],
    213 	      function->fields[function_param]);
    214   }
    215   table_entry_print_cpp_line_nr(file, function);
    216   lf_printf(file, "{\n");
    217   if (function->annex) {
    218     lf_indent(file, +2);
    219     lf_print__c_code(file, function->annex);
    220     lf_indent(file, -2);
    221   }
    222   lf_printf(file, "}\n");
    223   lf_print__internal_reference(file);
    224   lf_printf(file, "\n");
    225 }
    226 
    227 void
    228 gen_model_c(insn_table *table, lf *file)
    229 {
    230   insn *insn_ptr;
    231   model *model_ptr;
    232   const char *name;
    233   int model_create_p = 0;
    234   int model_init_p = 0;
    235   int model_halt_p = 0;
    236   int model_mon_info_p = 0;
    237   int model_mon_info_free_p = 0;
    238 
    239   lf_printf(file, "\n");
    240   lf_printf(file, "#include \"cpu.h\"\n");
    241   lf_printf(file, "#include \"mon.h\"\n");
    242   lf_printf(file, "\n");
    243   lf_printf(file, "#include <stdlib.h>\n");
    244   lf_printf(file, "\n");
    245 
    246   for(insn_ptr = model_data; insn_ptr; insn_ptr = insn_ptr->next) {
    247     model_c_or_h_data(table, file, insn_ptr->file_entry);
    248   }
    249 
    250   for(insn_ptr = model_static; insn_ptr; insn_ptr = insn_ptr->next) {
    251     model_c_or_h_function(table, file, insn_ptr->file_entry, "/*h*/STATIC");
    252   }
    253 
    254   for(insn_ptr = model_internal; insn_ptr; insn_ptr = insn_ptr->next) {
    255     model_c_or_h_function(table, file, insn_ptr->file_entry, "STATIC_INLINE_MODEL");
    256   }
    257 
    258   for(insn_ptr = model_static; insn_ptr; insn_ptr = insn_ptr->next) {
    259     model_c_function(table, file, insn_ptr->file_entry, "/*c*/STATIC");
    260   }
    261 
    262   for(insn_ptr = model_internal; insn_ptr; insn_ptr = insn_ptr->next) {
    263     model_c_function(table, file, insn_ptr->file_entry, "STATIC_INLINE_MODEL");
    264   }
    265 
    266   for(insn_ptr = model_functions; insn_ptr; insn_ptr = insn_ptr->next) {
    267     model_c_function(table, file, insn_ptr->file_entry, "INLINE_MODEL");
    268     name = insn_ptr->file_entry->fields[function_name];
    269     if (strcmp (name, "model_create") == 0)
    270       model_create_p = 1;
    271     else if (strcmp (name, "model_init") == 0)
    272       model_init_p = 1;
    273     else if (strcmp (name, "model_halt") == 0)
    274       model_halt_p = 1;
    275     else if (strcmp (name, "model_mon_info") == 0)
    276       model_mon_info_p = 1;
    277     else if (strcmp (name, "model_mon_info_free") == 0)
    278       model_mon_info_free_p = 1;
    279   }
    280 
    281   if (!model_create_p) {
    282     lf_print_function_type(file, "model_data *", "INLINE_MODEL", "\n");
    283     lf_printf(file, "model_create(cpu *processor)\n");
    284     lf_printf(file, "{\n");
    285     lf_printf(file, "  return (model_data *)0;\n");
    286     lf_printf(file, "}\n");
    287     lf_printf(file, "\n");
    288   }
    289 
    290   if (!model_init_p) {
    291     lf_print_function_type(file, "void", "INLINE_MODEL", "\n");
    292     lf_printf(file, "model_init(model_data *model_ptr)\n");
    293     lf_printf(file, "{\n");
    294     lf_printf(file, "}\n");
    295     lf_printf(file, "\n");
    296   }
    297 
    298   if (!model_halt_p) {
    299     lf_print_function_type(file, "void", "INLINE_MODEL", "\n");
    300     lf_printf(file, "model_halt(model_data *model_ptr)\n");
    301     lf_printf(file, "{\n");
    302     lf_printf(file, "}\n");
    303     lf_printf(file, "\n");
    304   }
    305 
    306   if (!model_mon_info_p) {
    307     lf_print_function_type(file, "model_print *", "INLINE_MODEL", "\n");
    308     lf_printf(file, "model_mon_info(model_data *model_ptr)\n");
    309     lf_printf(file, "{\n");
    310     lf_printf(file, "  return (model_print *)0;\n");
    311     lf_printf(file, "}\n");
    312     lf_printf(file, "\n");
    313   }
    314 
    315   if (!model_mon_info_free_p) {
    316     lf_print_function_type(file, "void", "INLINE_MODEL", "\n");
    317     lf_printf(file, "model_mon_info_free(model_data *model_ptr,\n");
    318     lf_printf(file, "                    model_print *info_ptr)\n");
    319     lf_printf(file, "{\n");
    320     lf_printf(file, "}\n");
    321     lf_printf(file, "\n");
    322   }
    323 
    324   lf_printf(file, "/* Insn functional unit info */\n");
    325   for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    326     model_c_passed_data data;
    327 
    328     lf_printf(file, "static const model_time model_time_%s[] = {\n", model_ptr->name);
    329     data.file = file;
    330     data.model_ptr = model_ptr;
    331     insn_table_traverse_insn(table,
    332 			     NULL, (void *)&data,
    333 			     model_c_insn);
    334 
    335     lf_printf(file, "};\n");
    336     lf_printf(file, "\n");
    337     lf_printf(file, "\f\n");
    338   }
    339 
    340   lf_printf(file, "#ifndef _INLINE_C_\n");
    341   lf_printf(file, "const model_time *const model_time_mapping[ (int)nr_models ] = {\n");
    342   lf_printf(file, "  (const model_time *const)0,\n");
    343   for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    344     lf_printf(file, "  model_time_%s,\n", model_ptr->name);
    345   }
    346   lf_printf(file, "};\n");
    347   lf_printf(file, "#endif\n");
    348   lf_printf(file, "\n");
    349 
    350   lf_printf(file, "\f\n");
    351   lf_printf(file, "/* map model enumeration into printable string */\n");
    352   lf_printf(file, "#ifndef _INLINE_C_\n");
    353   lf_printf(file, "const char *model_name[ (int)nr_models ] = {\n");
    354   lf_printf(file, "  \"NONE\",\n");
    355   for (model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    356     lf_printf(file, "  \"%s\",\n", model_ptr->printable_name);
    357   }
    358   lf_printf(file, "};\n");
    359   lf_printf(file, "#endif\n");
    360   lf_printf(file, "\n");
    361 
    362   lf_print_function_type(file, "void", "INLINE_MODEL", "\n");
    363   lf_printf(file, "model_set(const char *name)\n");
    364   lf_printf(file, "{\n");
    365   if (models) {
    366     lf_printf(file, "  model_enum model;\n");
    367     lf_printf(file, "  for(model = MODEL_%s; model < nr_models; model++) {\n", models->name);
    368     lf_printf(file, "    if(strcmp(name, model_name[model]) == 0) {\n");
    369     lf_printf(file, "      current_model = model;\n");
    370     lf_printf(file, "      return;\n");
    371     lf_printf(file, "    }\n");
    372     lf_printf(file, "  }\n");
    373     lf_printf(file, "\n");
    374     lf_printf(file, "  error(\"Unknown model '%%s', Models which are known are:%%s\\n\",\n");
    375     lf_printf(file, "        name,\n");
    376     lf_printf(file, "        \"");
    377     for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    378       lf_printf(file, "\\n\\t%s", model_ptr->printable_name);
    379     }
    380     lf_printf(file, "\");\n");
    381   } else {
    382     lf_printf(file, "  error(\"No models are currently known about\");\n");
    383   }
    384 
    385   lf_printf(file, "}\n");
    386 }
    387 
    388