/* Engine header for Cpu tools GENerated simulators.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998-2016 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
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, or (at your option)
-any later version.
+the Free Software Foundation; either version 3 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. */
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>. */
-/* This file must be included after eng.h and before ${cpu}.h. */
+/* This file is included by ${cpu}.h.
+ It needs CGEN_INSN_WORD which is defined by ${cpu}.h.
+ ??? A lot of this could be moved to genmloop.sh to be put in eng.h
+ and thus remove some conditional compilation. We'd still need
+ CGEN_INSN_WORD though. */
/* Semantic functions come in six versions on two axes:
fast/full-featured, and using one of the simple/scache/compilation engines.
/* Instruction field support macros. */
-#define EXTRACT_MSB0_INT(val, total, start, length) \
+#define EXTRACT_MSB0_SINT(val, total, start, length) \
(((INT) (val) << ((sizeof (INT) * 8) - (total) + (start))) \
>> ((sizeof (INT) * 8) - (length)))
#define EXTRACT_MSB0_UINT(val, total, start, length) \
(((UINT) (val) << ((sizeof (UINT) * 8) - (total) + (start))) \
>> ((sizeof (UINT) * 8) - (length)))
-#define EXTRACT_LSB0_INT(val, total, start, length) \
+#define EXTRACT_LSB0_SINT(val, total, start, length) \
(((INT) (val) << ((sizeof (INT) * 8) - (start) - 1)) \
>> ((sizeof (INT) * 8) - (length)))
#define EXTRACT_LSB0_UINT(val, total, start, length) \
(((UINT) (val) << ((sizeof (UINT) * 8) - (start) - 1)) \
>> ((sizeof (UINT) * 8) - (length)))
-#if CGEN_INSN_LSB0_P
-
-#define EXTRACT_INT(val, total, start, length) \
- EXTRACT_LSB0_INT ((val), (total), (start), (length))
-#define EXTRACT_UINT(val, total, start, length) \
- EXTRACT_LSB0_UINT ((val), (total), (start), (length))
-
-#else
-
-#define EXTRACT_INT(val, total, start, length) \
- EXTRACT_MSB0_INT ((val), (total), (start), (length))
-#define EXTRACT_UINT(val, total, start, length) \
- EXTRACT_MSB0_UINT ((val), (total), (start), (length))
-
-#endif
+#define EXTRACT_MSB0_LGSINT(val, total, start, length) \
+(((CGEN_INSN_LGSINT) (val) << ((sizeof (CGEN_INSN_LGSINT) * 8) - (total) + (start))) \
+ >> ((sizeof (CGEN_INSN_LGSINT) * 8) - (length)))
+#define EXTRACT_MSB0_LGUINT(val, total, start, length) \
+(((CGEN_INSN_UINT) (val) << ((sizeof (CGEN_INSN_LGUINT) * 8) - (total) + (start))) \
+ >> ((sizeof (CGEN_INSN_LGUINT) * 8) - (length)))
+
+#define EXTRACT_LSB0_LGSINT(val, total, start, length) \
+(((CGEN_INSN_LGSINT) (val) << ((sizeof (CGEN_INSN_LGSINT) * 8) - (start) - 1)) \
+ >> ((sizeof (CGEN_INSN_LGSINT) * 8) - (length)))
+#define EXTRACT_LSB0_LGUINT(val, total, start, length) \
+(((CGEN_INSN_LGUINT) (val) << ((sizeof (CGEN_INSN_LGUINT) * 8) - (start) - 1)) \
+ >> ((sizeof (CGEN_INSN_LGUINT) * 8) - (length)))
\f
/* Semantic routines. */
/* Type of the machine generated extraction fns. */
/* ??? No longer used. */
-typedef void (EXTRACT_FN) (SIM_CPU *, IADDR, CGEN_INSN_INT, ARGBUF *);
+typedef void (EXTRACT_FN) (SIM_CPU *, IADDR, CGEN_INSN_WORD, ARGBUF *);
/* Type of the machine generated semantic fns. */
/* Instruction fields are extracted into ARGBUF before calling the
semantic routine. */
-#if HAVE_PARALLEL_INSNS
+#if HAVE_PARALLEL_INSNS && ! WITH_PARALLEL_GENWRITE
typedef SEM_PC (SEMANTIC_FN) (SIM_CPU *, SEM_ARG, PAREXEC *);
#else
typedef SEM_PC (SEMANTIC_FN) (SIM_CPU *, SEM_ARG);
/* Instruction fields are extracted by the semantic routine.
??? TODO: multi word insns. */
-#if HAVE_PARALLEL_INSNS
-typedef SEM_STATUS (SEMANTIC_FN) (SIM_CPU *, SEM_ARG, PAREXEC *, CGEN_INSN_INT);
+#if HAVE_PARALLEL_INSNS && ! WITH_PARALLEL_GENWRITE
+typedef SEM_STATUS (SEMANTIC_FN) (SIM_CPU *, SEM_ARG, PAREXEC *, CGEN_INSN_WORD);
#else
-typedef SEM_STATUS (SEMANTIC_FN) (SIM_CPU *, SEM_ARG, CGEN_INSN_INT);
+typedef SEM_STATUS (SEMANTIC_FN) (SIM_CPU *, SEM_ARG, CGEN_INSN_WORD);
#endif
#endif
#ifdef __GNUC__
#define SEM_SET_FULL_CODE(abuf, idesc) \
do { (abuf)->semantic.sem_case = (idesc)->sem_full_lab; } while (0)
-#else
+#else
#define SEM_SET_FULL_CODE(abuf, idesc) \
do { (abuf)->semantic.sem_case = (idesc)->num; } while (0)
#endif
#ifdef __GNUC__
#define SEM_SET_FAST_CODE(abuf, idesc) \
do { (abuf)->semantic.sem_case = (idesc)->sem_fast_lab; } while (0)
-#else
+#else
#define SEM_SET_FAST_CODE(abuf, idesc) \
do { (abuf)->semantic.sem_case = (idesc)->num; } while (0)
#endif
/* Return pointer to ARGBUF given ptr to SCACHE. */
#define SEM_ARGBUF(sem_arg) (& (sem_arg) -> argbuf)
-/* There are several styles of engines, all generally supported by the
- same code:
-
- WITH_SCACHE && WITH_SCACHE_PBB - pseudo-basic-block scaching
- WITH_SCACHE && !WITH_SCACHE_PBB - scaching on an insn by insn basis
- !WITH_SCACHE - simple engine: fetch an insn, execute an insn
-
- ??? The !WITH_SCACHE case can also be broken up into two flavours:
- extract the fields of the insn into an ARGBUF struct, or defer the
- extraction to the semantic handler. The WITH_SCACHE case always
- extracts the fields into an ARGBUF struct. */
-
#if WITH_SCACHE
-#define CIA_ADDR(cia) (cia)
-
#if WITH_SCACHE_PBB
/* Return the scache pointer of the current insn. */
/* This is the "simple" engine case. */
-#define CIA_ADDR(cia) (cia)
-
#define SEM_SEM_ARG(vpc, sc) (sc)
#define SEM_NEXT_VPC(sem_arg, pc, len) ((pc) + (len))
/* Instruction information. */
/* Sanity check, at most one of these may be true. */
-#if WITH_PARALLEL_READ && WITH_PARALLEL_WRITE
-#error "Both WITH_PARALLEL_READ && WITH_PARALLEL_WRITE can't be true."
+#if WITH_PARALLEL_READ + WITH_PARALLEL_WRITE + WITH_PARALLEL_GENWRITE > 1
+#error "At most one of WITH_PARALLEL_{READ,WRITE,GENWRITE} can be true."
#endif
/* Compile time computable instruction data. */
/* Semantic format number. */
int sfmt;
-#if WITH_PARALLEL_READ || WITH_PARALLEL_WRITE
+#if HAVE_PARALLEL_INSNS && ! WITH_PARALLEL_ONLY
/* Index in IDESC table of parallel handler. */
int par_index;
#endif
#endif
/* Parallel support. */
-#if WITH_PARALLEL_READ || WITH_PARALLEL_WRITE
+#if HAVE_PARALLEL_INSNS && (! WITH_PARALLEL_ONLY || (WITH_PARALLEL_ONLY && ! WITH_PARALLEL_GENWRITE))
/* Pointer to parallel handler if serial insn.
Pointer to readahead/writeback handler if parallel insn. */
struct idesc *par_idesc;
projects / deliverable / binutils-gdb.git / blobdiff