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* Makefile.in (INCLUDE_DEPS): Add include/opcode/cgen.h.

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* sim-if.c (sim_open): Open opcode table.
	(sim_close): Close it.
This commit is contained in:
Doug Evans
1998-08-03 19:58:36 +00:00
parent c2009f4a31
commit 13ccace0ca
3 changed files with 41 additions and 117 deletions
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124
sim/m32r/sim-if.c
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@ -23,7 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "sim-options.h"
#include "libiberty.h"
#include "bfd.h"
#include "targ-vals.h"
static void free_state (SIM_DESC);
static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose);
@ -87,7 +86,9 @@ sim_open (kind, callback, abfd, argv)
/* Allocate core managed memory */
sim_do_commandf (sd, "memory region 0,0x%lx", M32R_DEFAULT_MEM_SIZE);
/* Allocate a handler for the MSPR register. */
/* Allocate a handler for the control registers and other devices.
All are allocated in one chunk to keep things from being
unnecessarily complicated. */
sim_core_attach (sd, NULL,
0 /*level*/,
access_read_write,
@ -174,6 +175,11 @@ sim_open (kind, callback, abfd, argv)
/* Initialize various cgen things not done by common framework. */
cgen_init (sd);
/* Open a copy of the opcode table. */
STATE_OPCODE_TABLE (sd) = m32r_cgen_opcode_open (STATE_ARCHITECTURE (sd)->mach,
CGEN_ENDIAN_BIG);
m32r_cgen_init_dis (STATE_OPCODE_TABLE (sd));
{
int c;
@ -200,6 +206,7 @@ sim_close (sd, quitting)
SIM_DESC sd;
int quitting;
{
m32r_cgen_opcode_close (STATE_OPCODE_TABLE (sd));
sim_module_uninstall (sd);
}
@ -309,6 +316,11 @@ print_m32r_misc_cpu (SIM_CPU *cpu, int verbose)
PROFILE_LABEL_WIDTH, "Fill nops:",
sim_add_commas (buf, sizeof (buf),
CPU_M32R_MISC_PROFILE (cpu).fillnop_count));
if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx)
sim_io_printf (sd, " %-*s %s\n\n",
PROFILE_LABEL_WIDTH, "Parallel insns:",
sim_add_commas (buf, sizeof (buf),
CPU_M32R_MISC_PROFILE (cpu).parallel_count));
}
}
@ -349,17 +361,6 @@ sim_do_command (sd, cmd)
sim_io_eprintf (sd, "Unknown command `%s'\n", cmd);
}
/* The semantic code invokes this for illegal (unrecognized) instructions. */
void
sim_engine_illegal_insn (current_cpu, pc)
SIM_CPU *current_cpu;
PCADDR pc;
{
sim_engine_halt (CPU_STATE (current_cpu), current_cpu, NULL, pc,
sim_stopped, SIM_SIGILL);
}
/* Utility fns to access registers, without knowing the current mach. */
SI
@ -399,100 +400,3 @@ h_gr_set (SIM_CPU *current_cpu, UINT regno, SI newval)
abort ();
}
}
/* Read/write functions for system call interface. */
static int
syscall_read_mem (host_callback *cb, struct cb_syscall *sc,
unsigned long taddr, char *buf, int bytes)
{
SIM_DESC sd = (SIM_DESC) sc->p1;
SIM_CPU *cpu = (SIM_CPU *) sc->p2;
return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes);
}
static int
syscall_write_mem (host_callback *cb, struct cb_syscall *sc,
unsigned long taddr, const char *buf, int bytes)
{
SIM_DESC sd = (SIM_DESC) sc->p1;
SIM_CPU *cpu = (SIM_CPU *) sc->p2;
return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes);
}
/* Trap support.
The result is the pc address to continue at. */
USI
do_trap (SIM_CPU *current_cpu, int num)
{
SIM_DESC sd = CPU_STATE (current_cpu);
host_callback *cb = STATE_CALLBACK (sd);
#ifdef SIM_HAVE_BREAKPOINTS
/* Check for breakpoints "owned" by the simulator first, regardless
of --environment. */
if (num == 1)
{
/* First try sim-break.c. If it's a breakpoint the simulator "owns"
it doesn't return. Otherwise it returns and let's us try. */
sim_handle_breakpoint (sd, current_cpu, sim_pc_get (current_cpu));
/* Fall through. */
}
#endif
if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
{
/* The new pc is the trap vector entry.
We assume there's a branch there to some handler. */
USI new_pc = num * 4;
return new_pc;
}
switch (num)
{
case 0 :
/* Trap 0 is used for system calls. */
{
CB_SYSCALL s;
CB_SYSCALL_INIT (&s);
s.func = h_gr_get (current_cpu, 0);
s.arg1 = h_gr_get (current_cpu, 1);
s.arg2 = h_gr_get (current_cpu, 2);
s.arg3 = h_gr_get (current_cpu, 3);
if (s.func == TARGET_SYS_exit)
{
sim_engine_halt (sd, current_cpu, NULL, sim_pc_get (current_cpu),
sim_exited, s.arg1);
}
s.p1 = (PTR) sd;
s.p2 = (PTR) current_cpu;
s.read_mem = syscall_read_mem;
s.write_mem = syscall_write_mem;
cb_syscall (STATE_CALLBACK (sd), &s);
h_gr_set (current_cpu, 2, s.errcode);
h_gr_set (current_cpu, 0, s.result);
h_gr_set (current_cpu, 1, s.result2);
break;
}
case 1: /* breakpoint trap */
sim_engine_halt (sd, current_cpu, NULL, NULL_CIA,
sim_stopped, SIM_SIGTRAP);
break;
default :
{
USI new_pc = num * 4;
return new_pc;
}
}
/* Fake an "rte" insn. */
return (sim_pc_get (current_cpu) & -4) + 4;
}