aboutsummaryrefslogtreecommitdiff
path: root/sim/igen
diff options
context:
space:
mode:
Diffstat (limited to 'sim/igen')
-rw-r--r--sim/igen/ChangeLog4
-rw-r--r--sim/igen/igen.h144
2 files changed, 148 insertions, 0 deletions
diff --git a/sim/igen/ChangeLog b/sim/igen/ChangeLog
index 5ca4d0e..b9835de 100644
--- a/sim/igen/ChangeLog
+++ b/sim/igen/ChangeLog
@@ -1,3 +1,7 @@
+Tue May 27 14:12:32 1997 Andrew Cagney <cagney@b1.cygnus.com>
+
+ * igen.h: Stop options and code gen type bit masks overlaping.
+
Fri May 23 12:01:08 1997 Andrew Cagney <cagney@b1.cygnus.com>
* gen-semantics.c (print_semantic_body): Incorrect test for
diff --git a/sim/igen/igen.h b/sim/igen/igen.h
new file mode 100644
index 0000000..3d894bf
--- /dev/null
+++ b/sim/igen/igen.h
@@ -0,0 +1,144 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, 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, size, widths or offesets */
+extern int hi_bit_nr;
+extern int insn_bit_size;
+extern int insn_specifying_widths;
+
+
+/* what should global names be prefixed with? */
+extern const char *global_name_prefix;
+extern const char *global_uname_prefix;
+
+
+/* generation options: */
+
+
+enum {
+ generate_with_direct_access = 0x1,
+ generate_with_icache = 0x2,
+ generate_with_semantic_icache = 0x4,
+ generate_with_insn_in_icache = 0x8,
+
+ generate_with_semantic_returning_modified_nia_only = 0x010,
+ generate_with_semantic_conditional_issue = 0x020,
+ generate_with_idecode_slot_verification = 0x040,
+ generate_with_semantic_delayed_branch = 0x080,
+ generate_with_semantic_zero_r0 = 0x100
+};
+
+
+typedef enum {
+
+ /* Transfer control to an instructions semantic code using the the
+ standard call/return mechanism */
+
+ generate_calls = 0x1000,
+
+
+ /* Transfer control to an instructions semantic code using
+ (computed) goto's instead of the more conventional call/return
+ mechanism */
+
+ generate_jumps = 0x2000,
+
+
+} igen_code;
+
+extern int 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: */
+
+extern int print_icache_function_formal
+(lf *file);
+
+extern int print_icache_function_actual
+(lf *file);
+
+extern int print_icache_function_type
+(lf *file);
+
+extern int print_semantic_function_formal
+(lf *file);
+
+extern int print_semantic_function_actual
+(lf *file);
+
+extern int print_semantic_function_type
+(lf *file);
+
+extern void print_my_defines
+(lf *file,
+ insn_bits *expanded_bits,
+ 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_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);