177 lines
5.3 KiB
C
177 lines
5.3 KiB
C
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/* Types for Cpu tools GENerated simulators.
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Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef CGEN_TYPES_H
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#define CGEN_TYPES_H
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#ifdef __GNUC__
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#define HAVE_LONGLONG
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#undef DI_FN_SUPPORT
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#define SIM_INLINE extern inline
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#else
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#undef HAVE_LONGLONG
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#define DI_FN_SUPPORT
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#define SIM_INLINE
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#endif
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#ifndef CGEN_CAT3
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#if defined(__STDC__) || defined(ALMOST_STDC)
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#define CGEN_XCAT3(a,b,c) a ## b ## c
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#define CGEN_CAT3(a,b,c) CGEN_XCAT3 (a, b, c)
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#else
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#define CGEN_CAT3(a,b,c) a/**/b/**/c
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#endif
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#endif
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extern const char *mode_names[];
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#define MODE_NAME(m) (mode_names[m])
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#ifdef __STDC__
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typedef /*FIXME*/ signed char BI;
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typedef /*FIXME*/ signed char QI;
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#else
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typedef /*FIXME*/ char BI;
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typedef /*FIXME*/ char QI;
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#endif
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typedef short HI;
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typedef int SI;
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typedef unsigned char UBI;
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typedef unsigned char UQI;
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typedef unsigned short UHI;
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typedef unsigned int USI;
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#ifdef HAVE_LONGLONG
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typedef long long DI;
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typedef unsigned long long UDI;
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#define GETLODI(di) ((SI) (di))
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#define GETHIDI(di) ((SI) ((di) >> 32))
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#define SETLODI(di, val) ((di) = (((di) & 0xffffffff00000000LL) | (val)))
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#define SETHIDI(di, val) ((di) = (((di) & 0xffffffffLL) | (((DI) (val)) << 32)))
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#define SETDI(di, hi, lo) ((di) = MAKEDI (hi, lo))
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#define MAKEDI(hi, lo) ((((DI) (hi)) << 32) | ((DI) (lo)))
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#else
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typedef struct { SI hi,lo; } DI;
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typedef DI UDI;
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#define GETLODI(di) ((di).lo)
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#define GETHIDI(di) ((di).hi)
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#define SETLODI(di, val) ((di).lo = (val))
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#define SETHIDI(di, val) ((di).hi = (val))
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#define SETDI(di, hi, lo) ((di) = MAKEDI (hi, lo))
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extern DI make_struct_di (SI, SI);
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#define MAKEDI(hi, lo) (make_struct_di ((hi), (lo)))
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#endif
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/* FIXME: Need to provide libraries if these aren't appropriate for target,
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or user's needs. */
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typedef float SF;
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typedef double DF;
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typedef double XF; /* FIXME: configure, provide library */
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typedef double TF; /* FIXME: configure, provide library */
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struct argbuf;
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struct cgen_insn;
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struct scache;
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/* This is used to record extracted raw data from an instruction, among other
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things. It must be a host data type, and not a target one so USI is
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inappropriate. */
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typedef unsigned int UINT;
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typedef unsigned long PCADDR;
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typedef unsigned long ADDR;
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typedef /*FIXME*/ unsigned long insn_t;
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/* Forward declaration of STATE.
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Must be defined before profile.h and other module headers. */
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typedef struct sim_state *STATE;
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/* Execution support.
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Semantic functions come in two versions.
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One that uses the cache, and one that doesn't.
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The one that doesn't may eventually be thrown away or replaced with
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something else. */
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/* ??? The cache stuff is still wip, but it at least works. */
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#ifdef SCACHE_P
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/* iaddr: instruction address */
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typedef PCADDR IADDR;
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/* cia: current instruction address */
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typedef PCADDR CIA;
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#define CIA_ADDR(cia) (cia)
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typedef struct scache *SEM_ARG;
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#define EX_FN_NAME(fn) CGEN_CAT3 (exc,_,fn)
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#define SEM_FN_NAME(fn) CGEN_CAT3 (semc,_,fn)
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/* extract.c support */
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/* scache_unset is a cache entry that is never used.
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It's raison d'etre is so BRANCH_VIA_CACHE doesn't have to test for
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newval.cache == NULL. */
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extern struct scache scache_unset;
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#define RECORD_IADDR(fld, val) \
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do { (fld) = (val); } while (0)
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/* semantics.c support */
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#define SEM_ARGBUF(sem_arg) (&(sem_arg)->argbuf)
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#define SEM_NEXT_PC(sc) ((sc)->next)
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#define SEM_BRANCH_VIA_CACHE(sc, newval) (newval)
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#define SEM_BRANCH_VIA_ADDR(sc, newval) (newval)
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/* Return address a branch insn will branch to.
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This is only used during tracing. */
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#define SEM_NEW_PC_ADDR(new_pc) (new_pc)
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#else /* ! SCACHE_P */
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typedef PCADDR IADDR;
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typedef PCADDR CIA;
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#define CIA_ADDR(cia) (cia)
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typedef struct argbuf *SEM_ARG;
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#define EX_FN_NAME(fn) CGEN_CAT3 (ex,_,fn)
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#define SEM_FN_NAME(fn) CGEN_CAT3 (sem,_,fn)
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/* extract.c support */
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#define RECORD_IADDR(fld, val) \
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do { (fld) = (val); } while (0)
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/* semantics.c support */
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#define SEM_ARGBUF(sem_arg) (sem_arg)
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#define SEM_NEXT_PC(abuf) (abuf->addr + abuf->length)
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#define SEM_BRANCH_VIA_CACHE(abuf, newval) (newval)
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#define SEM_BRANCH_VIA_ADDR(abuf, newval) (newval)
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#define SEM_NEW_PC_ADDR(new_pc) (new_pc)
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#endif /* ! SCACHE_P */
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#define EXTRACT_SIGNED(val, total, start, length) \
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(((((val) >> ((total) - ((start) + (length)))) & ((1 << (length)) - 1)) \
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^ (1 << ((length) - 1))) \
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- (1 << ((length) - 1)))
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#define EXTRACT_UNSIGNED(val, total, start, length) \
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(((val) >> ((total) - ((start) + (length)))) & ((1 << (length)) - 1))
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/* Compute number of longs required to hold N bits. */
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#define HOST_LONGS_FOR_BITS(n) \
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(((n) + sizeof (long) * 8 - 1) / sizeof (long) * 8)
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#endif /* CGEN_TYPES_H */
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