diff options
Diffstat (limited to 'sim/common/cgen-defs.h')
| -rw-r--r-- | sim/common/cgen-defs.h | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/sim/common/cgen-defs.h b/sim/common/cgen-defs.h deleted file mode 100644 index fbdfb9a2791..00000000000 --- a/sim/common/cgen-defs.h +++ /dev/null @@ -1,183 +0,0 @@ -/* General Cpu tools GENerated simulator support. - Copyright (C) 1996, 1997, 1998, 1999 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. - -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. */ - -#ifndef CGEN_DEFS_H -#define CGEN_DEFS_H - -/* Compute number of longs required to hold N bits. */ -#define HOST_LONGS_FOR_BITS(n) \ - (((n) + sizeof (long) * 8 - 1) / sizeof (long) * 8) - -/* Forward decls. Defined in the machine generated files. */ - -/* This holds the contents of the extracted insn. - There are a few common entries (e.g. pc address), and then one big - union with an entry for each of the instruction formats. */ -typedef struct argbuf ARGBUF; - -/* ARGBUF accessors. */ -#define ARGBUF_ADDR(abuf) ((abuf)->addr) -#define ARGBUF_IDESC(abuf) ((abuf)->idesc) -#define ARGBUF_TRACE_P(abuf) ((abuf)->trace_p) -#define ARGBUF_PROFILE_P(abuf) ((abuf)->profile_p) - -/* This is one ARGBUF plus whatever else is needed for WITH_SCACHE support. - At present there is nothing else, but it also provides a level of - abstraction. */ -typedef struct scache SCACHE; - -/* This is a union with one entry for each instruction format. - Each entry contains all of the non-constant inputs of the instruction - in the case of read-before-exec support, or all outputs of the instruction - in the case of write-after-exec support. */ -typedef struct parexec PAREXEC; - -/* An "Instruction DESCriptor". - This is the main handle on an instruction for the simulator. */ -typedef struct idesc IDESC; - -/* Engine support. - ??? This is here because it's needed before eng.h (built by genmloop.sh) - which is needed before cgen-engine.h and cpu.h. - ??? This depends on a cpu family specific type, IADDR, but no machine - generated headers will have been included yet. sim/common currently - requires the typedef of sim_cia in sim-main.h between the inclusion of - sim-basics.h and sim-base.h so this is no different. */ - -/* SEM_ARG is intended to hide whether or not the scache is in use from the - semantic routines. In reality for the with-extraction case it is always - an SCACHE * even when not using the SCACHE since there's no current win to - making it something else ("not using the SCACHE" is like having a cache - size of 1). - The without-extraction case still uses an ARGBUF: - - consistency with scache version - - still need to record which operands are written - This wouldn't be needed if modeling was done in the semantic routines - but this isn't as general as handling it outside of the semantic routines. - For example Shade allows calling user-supplied code before/after each - instruction and this is something that is being planned. - ??? There is still some clumsiness in how much of ARGBUF to use. */ -typedef SCACHE *SEM_ARG; - -/* instruction address - ??? This was intended to be a struct of two elements in the WITH_SCACHE_PBB - case. The first element is the IADDR, the second element is the SCACHE *. - Haven't found the time yet to make this work, but it seemed a nicer approach - than the current br_cache stuff. */ -typedef IADDR PCADDR; - -/* Current instruction address, used by common. */ -typedef IADDR CIA; - -/* Semantic routines' version of the PC. */ -#if WITH_SCACHE_PBB -typedef SCACHE *SEM_PC; -#else -typedef IADDR SEM_PC; -#endif - -/* Kinds of branches. */ -typedef enum { - SEM_BRANCH_UNTAKEN, - /* Branch to an uncacheable address (e.g. j reg). */ - SEM_BRANCH_UNCACHEABLE, - /* Branch to a cacheable (fixed) address. */ - SEM_BRANCH_CACHEABLE -} SEM_BRANCH_TYPE; - -/* Virtual insn support. */ - -/* Opcode table for virtual insns (only used by the simulator). */ -extern const CGEN_INSN cgen_virtual_insn_table[]; - -/* -ve of indices of virtual insns in cgen_virtual_insn_table. */ -typedef enum { - VIRTUAL_INSN_X_INVALID = 0, - VIRTUAL_INSN_X_BEFORE = -1, VIRTUAL_INSN_X_AFTER = -2, - VIRTUAL_INSN_X_BEGIN = -3, - VIRTUAL_INSN_X_CHAIN= -4, VIRTUAL_INSN_X_CTI_CHAIN = -5 -} CGEN_INSN_VIRTUAL_TYPE; - -/* Return non-zero if CGEN_INSN* INSN is a virtual insn. */ -#define CGEN_INSN_VIRTUAL_P(insn) \ - CGEN_INSN_ATTR_VALUE ((insn), CGEN_INSN_VIRTUAL) - -/* GNU C's "computed goto" facility is used to speed things up where - possible. These macros provide a portable way to use them. - Nesting of these switch statements is done by providing an extra argument - that distinguishes them. `N' can be a number or symbol. - Variable `labels_##N' must be initialized with the labels of each case. */ - -#ifdef __GNUC__ -#define SWITCH(N, X) goto *X; -#define CASE(N, X) case_##N##_##X -#define BREAK(N) goto end_switch_##N -#define DEFAULT(N) default_##N -#define ENDSWITCH(N) end_switch_##N: -#else -#define SWITCH(N, X) switch (X) -#define CASE(N, X) case X /* FIXME: old sem-switch had (@arch@_,X) here */ -#define BREAK(N) break -#define DEFAULT(N) default -#define ENDSWITCH(N) -#endif - -/* Simulator state. */ - -/* Records simulator descriptor so utilities like @cpu@_dump_regs can be - called from gdb. */ -extern SIM_DESC current_state; - -/* Simulator state. */ - -/* CGEN_STATE contains additional state information not present in - sim_state_base. */ - -typedef struct cgen_state { - /* FIXME: Moved to sim_state_base. */ - /* argv, env */ - char **argv; -#define STATE_ARGV(s) ((s) -> cgen_state.argv) - /* FIXME: Move to sim_state_base. */ - char **envp; -#define STATE_ENVP(s) ((s) -> cgen_state.envp) - - /* Non-zero if no tracing or profiling is selected. */ - int run_fast_p; -#define STATE_RUN_FAST_P(sd) ((sd) -> cgen_state.run_fast_p) -} CGEN_STATE; - -/* Various utilities. */ - -/* Called after sim_post_argv_init to do any cgen initialization. */ -extern void cgen_init (SIM_DESC); - -/* Return the name of an insn. */ -extern CPU_INSN_NAME_FN cgen_insn_name; - -/* Return the maximum number of extra bytes required for a sim_cpu struct. */ -/* ??? Ok, yes, this is less pretty than it should be. Give me a better - language [or suggest a better way]. */ -extern int cgen_cpu_max_extra_bytes (void); - -/* Target supplied routine to process an invalid instruction. */ -extern SEM_PC sim_engine_invalid_insn (SIM_CPU *, IADDR, SEM_PC); - -#endif /* CGEN_DEFS_H */ |