1 files changed, 138 insertions, 0 deletions
diff --git a/sim/common/cgen-sim.h b/sim/common/cgen-sim.h
new file mode 100644
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--- /dev/null
+++ b/sim/common/cgen-sim.h
@@ -0,0 +1,138 @@
+/* Simulator header for Cpu tools GENerated simulators.
+   Copyright (C) 1996, 1997 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_SIM_H
+#define CGEN_SIM_H
+
+#define PC (STATE_CPU_CPU (current_state, 0)->pc)
+
+/* Execution state.  */
+enum exec_state {
+  EXEC_STATE_RUNNING, EXEC_STATE_EXITED,
+  EXEC_STATE_STOPPED, EXEC_STATE_SIGNALLED
+};
+
+/* Signals we use.  */
+enum sim_signal_type {
+  SIM_SIGNONE,
+  SIM_SIGILL,    /* illegal insn */
+  SIM_SIGTRAP,
+  SIM_SIGALIGN,  /* misaligned memory access */
+  SIM_SIGACCESS, /* tried to read/write memory that's not readable/writable */
+  SIM_SIGXCPU    /* cpu limit exceeded */
+};
+
+void engine_halt PARAMS ((struct _sim_cpu *, enum exec_state, int));
+void engine_signal PARAMS ((struct _sim_cpu *, enum sim_signal_type));
+
+/* Decode,extract,semantics.  */
+
+typedef void (EXTRACT_FN) PARAMS ((SIM_CPU *, PCADDR, insn_t, struct argbuf *));
+/*typedef CIA (SEMANTIC_FN) PARAMS ((SEM_ARG));*/
+typedef PCADDR (SEMANTIC_FN) PARAMS ((SIM_CPU *, struct argbuf *));
+#if 0 /* wip */
+typedef void (EXTRACT_CACHE_FN) PARAMS ((SIM_CPU *, PCADDR, insn_t, struct argbuf *));
+#endif
+typedef PCADDR (SEMANTIC_CACHE_FN) PARAMS ((SIM_CPU *, struct scache *));
+
+typedef struct {
+  /* Using cgen_insn_type requires <cpu>-opc.h.  */
+  int /*enum cgen_insn_type*/ insn_type;
+  const struct cgen_insn *opcode;
+  /* FIXME: Perhaps rename these to normal/fast versions to associate them
+     with the normal/fast args to genmloop.sh.  */
+  EXTRACT_FN *extract;
+  SEMANTIC_FN *semantic;
+#if 0 /* wip */
+  EXTRACT_CACHE_FN *extract_fast;
+#endif
+  SEMANTIC_CACHE_FN *semantic_fast;
+#if defined (USE_SEM_SWITCH) && defined (__GNUC__)
+  void *semantic_lab;
+#endif
+} DECODE;
+
+/* FIXME: length parm to decode() is currently unneeded.  */
+extern DECODE *decode PARAMS ((insn_t /*, int*/));
+
+/* Simulator state.  */
+
+#if WITH_SCACHE
+#include "cgen-scache.h"
+#endif
+
+/* ??? Do we *need* to pass state to the semantic routines?  */
+extern SIM_DESC current_state;
+
+/* FIXME: Until sim_open creates one.  */
+extern struct sim_state sim_global_state;
+
+/* Simulator state.  */
+
+/* Main state struct.
+   CGEN_STATE contains addition state information not present in
+   sim_state_base.  */
+
+typedef struct cgen_state {
+  /* argv, env */
+  char **argv;
+#define STATE_ARGV(s) ((s)->cgen_state.argv)
+  char **envp;
+#define STATE_ENVP(s) ((s)->cgen_state.envp)
+} CGEN_STATE;
+
+/* Additional per-cpu data.  */
+
+typedef struct {
+  /* Simulator's execution cache.  */
+#if WITH_SCACHE
+  CPU_SCACHE scache;
+#endif /* WITH_SCACHE */
+
+  enum exec_state exec_state;
+#define CPU_EXEC_STATE(cpu) ((cpu)->cgen_cpu.exec_state)
+
+  int halt_sigrc;
+#define CPU_HALT_SIGRC(cpu) ((cpu)->cgen_cpu.halt_sigrc)
+
+  jmp_buf halt_jmp_buf;
+#define CPU_HALT_JMP_BUF(cpu) ((cpu)->cgen_cpu.halt_jmp_buf)
+
+  CPU_DATA cpu;
+#define CPU_CPU(c) (& (c)->cgen_cpu.cpu)
+  CPU_PROFILE profile_state;
+#define CPU_PROFILE_STATE(cpu) (& (cpu)->cgen_cpu.profile_state)
+} CGEN_CPU;
+
+/* Various utilities.  */
+
+int engine_stop (SIM_DESC);
+void engine_run (SIM_DESC, int, int);
+void engine_resume (SIM_DESC, int, int);
+void engine_halt (SIM_CPU *, enum exec_state, int);
+void engine_signal (SIM_CPU *, enum sim_signal_type);
+
+int sim_signal_to_host (int);
+
+void
+sim_disassemble_insn (const struct cgen_insn *, const struct argbuf *,
+		      PCADDR, char *);
+
+#endif /* CGEN_SIM_H */