1 /* Configurable Xtensa ISA support.
25 #include "xtensa-isa.h"
26 #include "xtensa-isa-internal.h"
43   xtensa_isa isa;  in xtensa_isa_init()  local
46   isa = xtensa_load_isa (0);  in xtensa_isa_init()
47   if (isa == 0)  in xtensa_isa_init()
49       fprintf (stderr, "Failed to initialize Xtensa base ISA module\n");  in xtensa_isa_init()
55       if (!xtensa_extend_isa (isa, mod))  in xtensa_isa_init()
57 	  fprintf (stderr, "Failed to initialize Xtensa TIE ISA module\n");  in xtensa_isa_init()
62   return isa;  in xtensa_isa_init()
65 /* ISA information.  */
68 xtensa_check_isa_config (xtensa_isa_internal *isa,  in xtensa_check_isa_config()  argument
75       fprintf (stderr, "Error: Empty configuration table in ISA DLL\n");  in xtensa_check_isa_config()
82   if (isa->num_modules == 0)  in xtensa_check_isa_config()
86       isa->config = config_table;  in xtensa_check_isa_config()
87       isa->has_density = 1;  /* Default to have density option.  */  in xtensa_check_isa_config()
93 	      isa->is_big_endian =  in xtensa_check_isa_config()
99 	      isa->has_density = atoi (config_table[i].param_value);  in xtensa_check_isa_config()
105 		   "configuration table in ISA DLL\n");  in xtensa_check_isa_config()
116      and we would then add those to isa->config so that subsequent modules  in xtensa_check_isa_config()
121       for (j = 0; isa->config[j].param_name; j++)  in xtensa_check_isa_config()
123 	  if (!strcmp (config_table[i].param_name, isa->config[j].param_name))  in xtensa_check_isa_config()
130 		  int basecnt = atoi (isa->config[j].param_value);  in xtensa_check_isa_config()
135 				   isa->config[j].param_value);  in xtensa_check_isa_config()
147 			   isa->config[j].param_value);  in xtensa_check_isa_config()
160 xtensa_add_isa (xtensa_isa_internal *isa, libisa_module_specifier libisa)  in xtensa_add_isa()  argument
175       || (!get_config_table_fn && isa->num_modules == 0))  in xtensa_add_isa()
179       && !xtensa_check_isa_config (isa, get_config_table_fn ()))  in xtensa_add_isa()
182   prev_num_opcodes = isa->num_opcodes;  in xtensa_add_isa()
185   isa->num_opcodes += new_num_opcodes;  in xtensa_add_isa()
186   isa->opcode_table = (xtensa_opcode_internal **)  in xtensa_add_isa()
187     realloc (isa->opcode_table, isa->num_opcodes *  in xtensa_add_isa()
189   isa->opname_lookup_table = (opname_lookup_entry *)  in xtensa_add_isa()
190     realloc (isa->opname_lookup_table, isa->num_opcodes *  in xtensa_add_isa()
195   insn_size = isa->insn_size;  in xtensa_add_isa()
200       isa->opcode_table[newopc] = intopc;  in xtensa_add_isa()
201       isa->opname_lookup_table[newopc].key = intopc->name;  in xtensa_add_isa()
202       isa->opname_lookup_table[newopc].opcode = newopc;  in xtensa_add_isa()
207   isa->insn_size = insn_size;  in xtensa_add_isa()
208   isa->insnbuf_size = ((isa->insn_size + sizeof (xtensa_insnbuf_word) - 1) /  in xtensa_add_isa()
211   qsort (isa->opname_lookup_table, isa->num_opcodes,  in xtensa_add_isa()
215   for (opc = 1; opc < isa->num_opcodes; opc++)  in xtensa_add_isa()
217       if (!opname_lookup_compare (&isa->opname_lookup_table[opc-1],  in xtensa_add_isa()
218 				  &isa->opname_lookup_table[opc]))  in xtensa_add_isa()
221 		   isa->opname_lookup_table[opc].key);  in xtensa_add_isa()
226   this_module = isa->num_modules;  in xtensa_add_isa()
227   isa->num_modules += 1;  in xtensa_add_isa()
229   isa->module_opcode_base = (int *) realloc (isa->module_opcode_base,  in xtensa_add_isa()
230 					     isa->num_modules * sizeof (int));  in xtensa_add_isa()
231   isa->module_decode_fn = (xtensa_insn_decode_fn *)  in xtensa_add_isa()
232     realloc (isa->module_decode_fn, isa->num_modules *  in xtensa_add_isa()
235   isa->module_opcode_base[this_module] = prev_num_opcodes;  in xtensa_add_isa()
236   isa->module_decode_fn[this_module] = decode_insn_fn;  in xtensa_add_isa()
238   xtensa_default_isa = isa;  in xtensa_add_isa()
247   xtensa_isa_internal *isa;  in xtensa_load_isa()  local
249   isa = (xtensa_isa_internal *) malloc (sizeof (xtensa_isa_internal));  in xtensa_load_isa()
250   memset (isa, 0, sizeof (xtensa_isa_internal));  in xtensa_load_isa()
251   if (!xtensa_add_isa (isa, libisa))  in xtensa_load_isa()
253       xtensa_isa_free (isa);  in xtensa_load_isa()
256   return (xtensa_isa) isa;  in xtensa_load_isa()
261 xtensa_extend_isa (xtensa_isa isa, libisa_module_specifier libisa)  in xtensa_extend_isa()  argument
263   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_extend_isa()
269 xtensa_isa_free (xtensa_isa isa)  in xtensa_isa_free()  argument
271   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_isa_free()
285 xtensa_insn_maxlength (xtensa_isa isa)  in xtensa_insn_maxlength()  argument
287   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_insn_maxlength()
293 xtensa_insnbuf_size (xtensa_isa isa)  in xtensa_insnbuf_size()  argument
295   xtensa_isa_internal *intisa = (xtensa_isa_internal *)isa;  in xtensa_insnbuf_size()
301 xtensa_num_opcodes (xtensa_isa isa)  in xtensa_num_opcodes()  argument
303   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_num_opcodes()
309 xtensa_opcode_lookup (xtensa_isa isa, const char *opname)  in xtensa_opcode_lookup()  argument
311   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_opcode_lookup()
323 xtensa_decode_insn (xtensa_isa isa, const xtensa_insnbuf insn)  in xtensa_decode_insn()  argument
325   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_decode_insn()
339 xtensa_encode_insn (xtensa_isa isa, xtensa_opcode opc, xtensa_insnbuf insn)  in xtensa_encode_insn()  argument
341   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_encode_insn()
360 xtensa_opcode_name (xtensa_isa isa, xtensa_opcode opc)  in xtensa_opcode_name()  argument
362   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_opcode_name()
368 xtensa_insn_length (xtensa_isa isa, xtensa_opcode opc)  in xtensa_insn_length()  argument
370   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_insn_length()
376 xtensa_insn_length_from_first_byte (xtensa_isa isa, char first_byte)  in xtensa_insn_length_from_first_byte()  argument
378   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_insn_length_from_first_byte()
385 xtensa_num_operands (xtensa_isa isa, xtensa_opcode opc)  in xtensa_num_operands()  argument
387   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_num_operands()
393 xtensa_get_operand (xtensa_isa isa, xtensa_opcode opc, int opnd)  in xtensa_get_operand()  argument
395   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_get_operand()
484 xtensa_insnbuf_alloc (xtensa_isa isa)  in xtensa_insnbuf_alloc()  argument
486   return (xtensa_insnbuf) malloc (xtensa_insnbuf_size (isa) *  in xtensa_insnbuf_alloc()
524 xtensa_insnbuf_to_chars (xtensa_isa isa, const xtensa_insnbuf insn, char *cp)  in xtensa_insnbuf_to_chars()  argument
526   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_insnbuf_to_chars()
544   opc = xtensa_decode_insn (isa, insn);  in xtensa_insnbuf_to_chars()
548   byte_count = xtensa_insn_length (isa, opc);  in xtensa_insnbuf_to_chars()
565 xtensa_insnbuf_from_chars (xtensa_isa isa, xtensa_insnbuf insn, const char* cp)  in xtensa_insnbuf_from_chars()  argument
567   xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;  in xtensa_insnbuf_from_chars()
583   memset (insn, 0, xtensa_insnbuf_size (isa) * sizeof (xtensa_insnbuf_word));  in xtensa_insnbuf_from_chars()