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Diffstat (limited to 'sim/igen/gen-semantics.h')
-rw-r--r-- | sim/igen/gen-semantics.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/sim/igen/gen-semantics.h b/sim/igen/gen-semantics.h deleted file mode 100644 index 9afc5cf..0000000 --- a/sim/igen/gen-semantics.h +++ /dev/null @@ -1,101 +0,0 @@ -/* The IGEN simulator generator for GDB, the GNU Debugger. - - Copyright 2002 Free Software Foundation, Inc. - - Contributed by Andrew Cagney. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - - -/* Creates the files semantics.[hc]. - - The generated file semantics contains functions that implement the - operations required to model a single target processor instruction. - - Several different variations on the semantics file can be created: - - o uncached - - No instruction cache exists. The semantic function - needs to generate any required values locally. - - o cached - separate cracker and semantic - - Two independant functions are created. Firstly the - function that cracks an instruction entering it into a - cache and secondly the semantic function propper that - uses the cache. - - o cached - semantic + cracking semantic - - The function that cracks the instruction and enters - all values into the cache also contains a copy of the - semantic code (avoiding the need to call both the - cracker and the semantic function when there is a - cache miss). - - For each of these general forms, several refinements can occure: - - o do/don't duplicate/expand semantic functions - - As a consequence of decoding an instruction, the - decoder, as part of its table may have effectivly made - certain of the variable fields in an instruction - constant. Separate functions for each of the - alternative values for what would have been treated as - a variable part can be created. - - o use cache struct directly. - - When a cracking cache is present, the semantic - functions can be generated to either hold intermediate - cache values in local variables or always refer to the - contents of the cache directly. */ - - - - - - -extern void print_semantic_declaration - (lf *file, - insn_entry * insn, - opcode_bits *bits, insn_opcodes *opcodes, int nr_prefetched_words); - -extern void print_semantic_definition - (lf *file, - insn_entry * insn, - opcode_bits *bits, - insn_opcodes *opcodes, cache_entry *cache_rules, int nr_prefetched_words); - - -typedef enum -{ - invalid_illegal, - invalid_fp_unavailable, - invalid_wrong_slot, -} -invalid_type; - -extern void print_idecode_invalid - (lf *file, const char *result, invalid_type type); - -extern void print_semantic_body - (lf *file, - insn_entry * instruction, - opcode_bits *expanded_bits, insn_opcodes *opcodes); |