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diff --git a/sim/ppc/igen.h b/sim/ppc/igen.h
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--- a/sim/ppc/igen.h
+++ /dev/null
@@ -1,186 +0,0 @@
-/* This file is part of the program psim.
-
- Copyright (C) 1994,1995,1996, Andrew Cagney <cagney@highland.com.au>
-
- 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.
-
- */
-
-
-/* What does the instruction look like - bit ordering and size */
-extern int hi_bit_nr;
-extern int insn_bit_size;
-
-
-/* generation options: */
-
-
-enum {
- generate_with_icache = 0x1,
- generate_with_semantic_icache = 0x2,
- generate_with_direct_access_icache = 0x4,
-};
-
-
-typedef enum {
-
- /* Transfer control to an instructions semantic code using the the
- standard call/return mechanism */
-
- generate_calls = 0x10,
-
- /* In addition, pre-decode an instructions opcode fields (entering
- them into an icache) so that semantic code can avoid the need to
- re-decode fields each time it is executed */
-
- generate_calls_with_icache
- = generate_calls | generate_with_icache,
-
- /* In addition, the instruction decode code includes a duplicated
- copy of the instructions semantic code. This avoids the need to
- perform two calls (one to decode an instructions opcode fields
- and one to execute the instruction) when there is a miss of the
- icache */
-
- generate_calls_with_semantic_icache
- = generate_calls_with_icache | generate_with_semantic_icache,
-
- /* In addition, the semantic function refers to icache entries
- directly instead of first moving them into local variables */
-
- generate_calls_with_direct_access_icache
- = generate_calls_with_icache | generate_with_direct_access_icache,
-
- generate_calls_with_direct_access_semantic_icache
- = generate_calls_with_direct_access_icache | generate_with_semantic_icache,
-
-
- /* Transfer control to an instructions semantic code using
- (computed) goto's instead of the more conventional call/return
- mechanism */
-
- generate_jumps = 0x20,
-
- /* As for generate_calls_with_icache but applies to jumping code */
-
- generate_jumps_with_icache
- = generate_jumps | generate_with_icache,
-
- /* As for generate_calls_with_semantic_icache but applies to jumping
- code */
-
- generate_jumps_with_semantic_icache
- = generate_jumps_with_icache | generate_with_semantic_icache,
-
- /* As for generate_calls_with_direct_access_icache */
-
- generate_jumps_with_direct_access_icache
- = generate_jumps_with_icache | generate_with_direct_access_icache,
-
- generate_jumps_with_direct_access_semantic_icache
- = generate_jumps_with_direct_access_icache | generate_with_semantic_icache,
-
-} igen_code;
-
-extern igen_code code;
-
-
-
-
-extern int icache_size;
-
-
-/* Instruction expansion?
-
- Should the semantic code for each instruction, when the oportunity
- arrises, be expanded according to the variable opcode files that
- the instruction decode process renders constant */
-
-extern int generate_expanded_instructions;
-
-
-/* SMP?
-
- Should the generated code include SMP support (>0) and if so, for
- how many processors? */
-
-extern int generate_smp;
-
-
-
-
-/* Misc junk */
-
-
-
-/* Function header definitions */
-
-
-/* Cache functions: */
-
-#define ICACHE_FUNCTION_FORMAL \
-"cpu *processor,\n\
- instruction_word instruction,\n\
- unsigned_word cia,\n\
- idecode_cache *cache_entry"
-
-#define ICACHE_FUNCTION_ACTUAL "processor, instruction, cia, cache_entry"
-
-#define ICACHE_FUNCTION_TYPE \
-((code & generate_with_semantic_icache) \
- ? SEMANTIC_FUNCTION_TYPE \
- : "idecode_semantic *")
-
-
-/* Semantic functions: */
-
-#define SEMANTIC_FUNCTION_FORMAL \
-((code & generate_with_icache) \
- ? "cpu *processor,\n idecode_cache *cache_entry,\n unsigned_word cia" \
- : "cpu *processor,\n instruction_word instruction,\n unsigned_word cia")
-
-#define SEMANTIC_FUNCTION_ACTUAL \
-((code & generate_with_icache) \
- ? "processor, instruction, cia, cache_entry" \
- : "processor, instruction, cia")
-
-#define SEMANTIC_FUNCTION_TYPE "unsigned_word"
-
-
-
-extern void print_define_my_index
-(lf *file,
- table_entry *file_entry);
-
-extern void print_itrace
-(lf *file,
- table_entry *file_entry,
- int idecode);
-
-
-typedef enum {
- function_name_prefix_semantics,
- function_name_prefix_idecode,
- function_name_prefix_itable,
- function_name_prefix_goto,
- function_name_prefix_icache,
- function_name_prefix_none
-} lf_function_name_prefixes;
-
-extern int print_function_name
-(lf *file,
- const char *basename,
- insn_bits *expanded_bits,
- lf_function_name_prefixes prefix);