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gen-model.c revision 1.1.1.3
      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 "lf-ppc.h"
     24 #include "table.h"
     25 
     26 #include "filter.h"
     27 
     28 #include "ld-cache.h"
     29 #include "ld-decode.h"
     30 #include "ld-insn.h"
     31 
     32 #include "gen-model.h"
     33 
     34 
     35 static void
     36 model_c_or_h_data(insn_table *table,
     37 		  lf *file,
     38 		  table_entry *data)
     39 {
     40   if (data->annex) {
     41     table_entry_print_cpp_line_nr(file, data);
     42     lf_print__c_code(file, data->annex);
     43     lf_print__internal_ref(file);
     44     lf_printf(file, "\n");
     45   }
     46 }
     47 
     48 static void
     49 model_c_or_h_function(insn_table *entry,
     50 		      lf *file,
     51 		      table_entry *function,
     52 		      const char *prefix)
     53 {
     54   if (function->fields[function_type] == NULL
     55       || function->fields[function_type][0] == '\0') {
     56     ERROR("Model function type not specified for %s", function->fields[function_name]);
     57   }
     58   lf_printf(file, "\n");
     59   lf_print__function_type(file, function->fields[function_type], prefix, " ");
     60   lf_printf(file, "%s\n(%s);\n",
     61 	    function->fields[function_name],
     62 	    function->fields[function_param]);
     63   lf_printf(file, "\n");
     64 }
     65 
     66 void
     67 gen_model_h(insn_table *table, lf *file)
     68 {
     69   insn *insn_ptr;
     70   model *model_ptr;
     71   insn *macro;
     72   const char *name;
     73   int model_create_p = 0;
     74   int model_init_p = 0;
     75   int model_halt_p = 0;
     76   int model_mon_info_p = 0;
     77   int model_mon_info_free_p = 0;
     78 
     79   for(macro = model_macros; macro; macro = macro->next) {
     80     model_c_or_h_data(table, file, macro->file_entry);
     81   }
     82 
     83   lf_printf(file, "typedef enum _model_enum {\n");
     84   lf_printf(file, "  MODEL_NONE,\n");
     85   for (model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
     86     lf_printf(file, "  MODEL_%s,\n", model_ptr->name);
     87   }
     88   lf_printf(file, "  nr_models\n");
     89   lf_printf(file, "} model_enum;\n");
     90   lf_printf(file, "\n");
     91 
     92   lf_printf(file, "#define DEFAULT_MODEL MODEL_%s\n", (models) ? models->name : "NONE");
     93   lf_printf(file, "\n");
     94 
     95   lf_printf(file, "typedef struct _model_data model_data;\n");
     96   lf_printf(file, "typedef struct _model_time model_time;\n");
     97   lf_printf(file, "\n");
     98 
     99   lf_printf(file, "extern model_enum current_model;\n");
    100   lf_printf(file, "extern const char *model_name[ (int)nr_models ];\n");
    101   lf_printf(file, "extern const char *const *const model_func_unit_name[ (int)nr_models ];\n");
    102   lf_printf(file, "extern const model_time *const model_time_mapping[ (int)nr_models ];\n");
    103   lf_printf(file, "\n");
    104 
    105   for(insn_ptr = model_functions; insn_ptr; insn_ptr = insn_ptr->next) {
    106     model_c_or_h_function(table, file, insn_ptr->file_entry, "INLINE_MODEL");
    107     name = insn_ptr->file_entry->fields[function_name];
    108     if (strcmp (name, "model_create") == 0)
    109       model_create_p = 1;
    110     else if (strcmp (name, "model_init") == 0)
    111       model_init_p = 1;
    112     else if (strcmp (name, "model_halt") == 0)
    113       model_halt_p = 1;
    114     else if (strcmp (name, "model_mon_info") == 0)
    115       model_mon_info_p = 1;
    116     else if (strcmp (name, "model_mon_info_free") == 0)
    117       model_mon_info_free_p = 1;
    118   }
    119 
    120   if (!model_create_p) {
    121     lf_print__function_type(file, "model_data *", "INLINE_MODEL", " ");
    122     lf_printf(file, "model_create\n");
    123     lf_printf(file, "(cpu *processor);\n");
    124     lf_printf(file, "\n");
    125   }
    126 
    127   if (!model_init_p) {
    128     lf_print__function_type(file, "void", "INLINE_MODEL", " ");
    129     lf_printf(file, "model_init\n");
    130     lf_printf(file, "(model_data *model_ptr);\n");
    131     lf_printf(file, "\n");
    132   }
    133 
    134   if (!model_halt_p) {
    135     lf_print__function_type(file, "void", "INLINE_MODEL", " ");
    136     lf_printf(file, "model_halt\n");
    137     lf_printf(file, "(model_data *model_ptr);\n");
    138     lf_printf(file, "\n");
    139   }
    140 
    141   if (!model_mon_info_p) {
    142     lf_print__function_type(file, "model_print *", "INLINE_MODEL", " ");
    143     lf_printf(file, "model_mon_info\n");
    144     lf_printf(file, "(model_data *model_ptr);\n");
    145     lf_printf(file, "\n");
    146   }
    147 
    148   if (!model_mon_info_free_p) {
    149     lf_print__function_type(file, "void", "INLINE_MODEL", " ");
    150     lf_printf(file, "model_mon_info_free\n");
    151     lf_printf(file, "(model_data *model_ptr,\n");
    152     lf_printf(file, " model_print *info_ptr);\n");
    153     lf_printf(file, "\n");
    154   }
    155 
    156   lf_print__function_type(file, "void", "INLINE_MODEL", " ");
    157   lf_printf(file, "model_set\n");
    158   lf_printf(file, "(const char *name);\n");
    159 }
    160 
    161 /****************************************************************/
    162 
    163 typedef struct _model_c_passed_data model_c_passed_data;
    164 struct _model_c_passed_data {
    165   lf *file;
    166   model *model_ptr;
    167 };
    168 
    169 static void
    170 model_c_insn(insn_table *entry,
    171 	     lf *phony_file,
    172 	     void *data,
    173 	     insn *instruction,
    174 	     int depth)
    175 {
    176   model_c_passed_data *data_ptr = (model_c_passed_data *)data;
    177   lf *file = data_ptr->file;
    178   const char *current_name = data_ptr->model_ptr->printable_name;
    179   table_model_entry *model_ptr = instruction->file_entry->model_first;
    180 
    181   while (model_ptr) {
    182     if (model_ptr->fields[insn_model_name] == current_name) {
    183       lf_printf(file, "  { %-*s },  /* %s */\n",
    184 		max_model_fields_len,
    185 		model_ptr->fields[insn_model_fields],
    186 		instruction->file_entry->fields[insn_name]);
    187       return;
    188     }
    189 
    190     model_ptr = model_ptr->next;
    191   }
    192 
    193   lf_printf(file, "  { %-*s },  /* %s */\n",
    194 	    max_model_fields_len,
    195 	    data_ptr->model_ptr->insn_default,
    196 	    instruction->file_entry->fields[insn_name]);
    197 }
    198 
    199 static void
    200 model_c_function(insn_table *table,
    201 		 lf *file,
    202 		 table_entry *function,
    203 		 const char *prefix)
    204 {
    205   if (function->fields[function_type] == NULL
    206       || function->fields[function_type][0] == '\0') {
    207     ERROR("Model function return type not specified for %s", function->fields[function_name]);
    208   }
    209   else {
    210     lf_printf(file, "\n");
    211     lf_print__function_type(file, function->fields[function_type], prefix, "\n");
    212     lf_printf(file, "%s(%s)\n",
    213 	      function->fields[function_name],
    214 	      function->fields[function_param]);
    215   }
    216   table_entry_print_cpp_line_nr(file, function);
    217   lf_printf(file, "{\n");
    218   if (function->annex) {
    219     lf_indent(file, +2);
    220     lf_print__c_code(file, function->annex);
    221     lf_indent(file, -2);
    222   }
    223   lf_printf(file, "}\n");
    224   lf_print__internal_ref(file);
    225   lf_printf(file, "\n");
    226 }
    227 
    228 void
    229 gen_model_c(insn_table *table, lf *file)
    230 {
    231   insn *insn_ptr;
    232   model *model_ptr;
    233   const char *name;
    234   int model_create_p = 0;
    235   int model_init_p = 0;
    236   int model_halt_p = 0;
    237   int model_mon_info_p = 0;
    238   int model_mon_info_free_p = 0;
    239 
    240   lf_printf(file, "\n");
    241   lf_printf(file, "#include \"cpu.h\"\n");
    242   lf_printf(file, "#include \"mon.h\"\n");
    243   lf_printf(file, "\n");
    244   lf_printf(file, "#include <stdlib.h>\n");
    245   lf_printf(file, "\n");
    246 
    247   for(insn_ptr = model_data; insn_ptr; insn_ptr = insn_ptr->next) {
    248     model_c_or_h_data(table, file, insn_ptr->file_entry);
    249   }
    250 
    251   for(insn_ptr = model_static; insn_ptr; insn_ptr = insn_ptr->next) {
    252     model_c_or_h_function(table, file, insn_ptr->file_entry, "/*h*/STATIC");
    253   }
    254 
    255   for(insn_ptr = model_internal; insn_ptr; insn_ptr = insn_ptr->next) {
    256     model_c_or_h_function(table, file, insn_ptr->file_entry, "STATIC_INLINE_MODEL");
    257   }
    258 
    259   for(insn_ptr = model_static; insn_ptr; insn_ptr = insn_ptr->next) {
    260     model_c_function(table, file, insn_ptr->file_entry, "/*c*/STATIC");
    261   }
    262 
    263   for(insn_ptr = model_internal; insn_ptr; insn_ptr = insn_ptr->next) {
    264     model_c_function(table, file, insn_ptr->file_entry, "STATIC_INLINE_MODEL");
    265   }
    266 
    267   for(insn_ptr = model_functions; insn_ptr; insn_ptr = insn_ptr->next) {
    268     model_c_function(table, file, insn_ptr->file_entry, "INLINE_MODEL");
    269     name = insn_ptr->file_entry->fields[function_name];
    270     if (strcmp (name, "model_create") == 0)
    271       model_create_p = 1;
    272     else if (strcmp (name, "model_init") == 0)
    273       model_init_p = 1;
    274     else if (strcmp (name, "model_halt") == 0)
    275       model_halt_p = 1;
    276     else if (strcmp (name, "model_mon_info") == 0)
    277       model_mon_info_p = 1;
    278     else if (strcmp (name, "model_mon_info_free") == 0)
    279       model_mon_info_free_p = 1;
    280   }
    281 
    282   if (!model_create_p) {
    283     lf_print__function_type(file, "model_data *", "INLINE_MODEL", "\n");
    284     lf_printf(file, "model_create(cpu *processor)\n");
    285     lf_printf(file, "{\n");
    286     lf_printf(file, "  return (model_data *)0;\n");
    287     lf_printf(file, "}\n");
    288     lf_printf(file, "\n");
    289   }
    290 
    291   if (!model_init_p) {
    292     lf_print__function_type(file, "void", "INLINE_MODEL", "\n");
    293     lf_printf(file, "model_init(model_data *model_ptr)\n");
    294     lf_printf(file, "{\n");
    295     lf_printf(file, "}\n");
    296     lf_printf(file, "\n");
    297   }
    298 
    299   if (!model_halt_p) {
    300     lf_print__function_type(file, "void", "INLINE_MODEL", "\n");
    301     lf_printf(file, "model_halt(model_data *model_ptr)\n");
    302     lf_printf(file, "{\n");
    303     lf_printf(file, "}\n");
    304     lf_printf(file, "\n");
    305   }
    306 
    307   if (!model_mon_info_p) {
    308     lf_print__function_type(file, "model_print *", "INLINE_MODEL", "\n");
    309     lf_printf(file, "model_mon_info(model_data *model_ptr)\n");
    310     lf_printf(file, "{\n");
    311     lf_printf(file, "  return (model_print *)0;\n");
    312     lf_printf(file, "}\n");
    313     lf_printf(file, "\n");
    314   }
    315 
    316   if (!model_mon_info_free_p) {
    317     lf_print__function_type(file, "void", "INLINE_MODEL", "\n");
    318     lf_printf(file, "model_mon_info_free(model_data *model_ptr,\n");
    319     lf_printf(file, "                    model_print *info_ptr)\n");
    320     lf_printf(file, "{\n");
    321     lf_printf(file, "}\n");
    322     lf_printf(file, "\n");
    323   }
    324 
    325   lf_printf(file, "/* Insn functional unit info */\n");
    326   for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    327     model_c_passed_data data;
    328 
    329     lf_printf(file, "static const model_time model_time_%s[] = {\n", model_ptr->name);
    330     data.file = file;
    331     data.model_ptr = model_ptr;
    332     insn_table_traverse_insn(table,
    333 			     NULL, (void *)&data,
    334 			     model_c_insn);
    335 
    336     lf_printf(file, "};\n");
    337     lf_printf(file, "\n");
    338     lf_printf(file, "\f\n");
    339   }
    340 
    341   lf_printf(file, "#ifndef _INLINE_C_\n");
    342   lf_printf(file, "const model_time *const model_time_mapping[ (int)nr_models ] = {\n");
    343   lf_printf(file, "  (const model_time *const)0,\n");
    344   for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    345     lf_printf(file, "  model_time_%s,\n", model_ptr->name);
    346   }
    347   lf_printf(file, "};\n");
    348   lf_printf(file, "#endif\n");
    349   lf_printf(file, "\n");
    350 
    351   lf_printf(file, "\f\n");
    352   lf_printf(file, "/* map model enumeration into printable string */\n");
    353   lf_printf(file, "#ifndef _INLINE_C_\n");
    354   lf_printf(file, "const char *model_name[ (int)nr_models ] = {\n");
    355   lf_printf(file, "  \"NONE\",\n");
    356   for (model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    357     lf_printf(file, "  \"%s\",\n", model_ptr->printable_name);
    358   }
    359   lf_printf(file, "};\n");
    360   lf_printf(file, "#endif\n");
    361   lf_printf(file, "\n");
    362 
    363   lf_print__function_type(file, "void", "INLINE_MODEL", "\n");
    364   lf_printf(file, "model_set(const char *name)\n");
    365   lf_printf(file, "{\n");
    366   if (models) {
    367     lf_printf(file, "  model_enum model;\n");
    368     lf_printf(file, "  for(model = MODEL_%s; model < nr_models; model++) {\n", models->name);
    369     lf_printf(file, "    if(strcmp(name, model_name[model]) == 0) {\n");
    370     lf_printf(file, "      current_model = model;\n");
    371     lf_printf(file, "      return;\n");
    372     lf_printf(file, "    }\n");
    373     lf_printf(file, "  }\n");
    374     lf_printf(file, "\n");
    375     lf_printf(file, "  error(\"Unknown model '%%s', Models which are known are:%%s\\n\",\n");
    376     lf_printf(file, "        name,\n");
    377     lf_printf(file, "        \"");
    378     for(model_ptr = models; model_ptr; model_ptr = model_ptr->next) {
    379       lf_printf(file, "\\n\\t%s", model_ptr->printable_name);
    380     }
    381     lf_printf(file, "\");\n");
    382   } else {
    383     lf_printf(file, "  error(\"No models are currently known about\");\n");
    384   }
    385 
    386   lf_printf(file, "}\n");
    387 }
    388 
    389