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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /sim/tic80/sim-calls.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'sim/tic80/sim-calls.c')
-rw-r--r-- | sim/tic80/sim-calls.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/sim/tic80/sim-calls.c b/sim/tic80/sim-calls.c deleted file mode 100644 index c60bd9b..0000000 --- a/sim/tic80/sim-calls.c +++ /dev/null @@ -1,203 +0,0 @@ -/* This file is part of the program psim. - - Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au> - Copyright (C) 1997, Free Software Foundation - - 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 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. - - */ - - -#include <stdarg.h> -#include <ctype.h> - -#include "bfd.h" -#include "sim-main.h" -#include "sim-utils.h" -#include "sim-options.h" - -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif - -#ifdef HAVE_STRING_H -#include <string.h> -#else -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif -#endif - - -#define SIM_ADDR unsigned - -SIM_DESC -sim_open (SIM_OPEN_KIND kind, - host_callback *callback, - struct _bfd *abfd, - char **argv) -{ - char *buf; - SIM_DESC sd = sim_state_alloc (kind, callback); - - if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) - return 0; - -#define TIC80_MEM_START 0x2000000 -#define TIC80_MEM_SIZE 0x100000 - - /* main memory */ - asprintf (&buf, "memory region 0x%lx,0x%lx", - TIC80_MEM_START, TIC80_MEM_SIZE); - sim_do_command (sd, buf); - free (buf); - /* interrupt memory */ - sim_do_command (sd, "memory region 0x1010000,0x1000"); - /* some memory at zero */ - sim_do_command (sd, "memory region 0,0x100000"); - - /* getopt will print the error message so we just have to exit if this fails. - FIXME: Hmmm... in the case of gdb we need getopt to call - print_filtered. */ - if (sim_parse_args (sd, argv) != SIM_RC_OK) - { - /* Uninstall the modules to avoid memory leaks, - file descriptor leaks, etc. */ - sim_module_uninstall (sd); - return 0; - } - - /* check for/establish the a reference program image */ - if (sim_analyze_program (sd, - (STATE_PROG_ARGV (sd) != NULL - ? *STATE_PROG_ARGV (sd) - : NULL), - abfd) != SIM_RC_OK) - { - sim_module_uninstall (sd); - return 0; - } - - /* establish any remaining configuration options */ - if (sim_config (sd) != SIM_RC_OK) - { - sim_module_uninstall (sd); - return 0; - } - - if (sim_post_argv_init (sd) != SIM_RC_OK) - { - /* Uninstall the modules to avoid memory leaks, - file descriptor leaks, etc. */ - sim_module_uninstall (sd); - return 0; - } - - /* FIXME: for now */ - return sd; -} - - -void -sim_close (SIM_DESC sd, int quitting) -{ - /* Uninstall the modules to avoid memory leaks, - file descriptor leaks, etc. */ - sim_module_uninstall (sd); -} - - -/* FIXME - these magic numbers need to be moved elsewhere */ - -#define SP_REGNUM 1 /* Contains address of top of stack */ -#define FP_REGNUM 31 /* Contains address of executing stack frame */ -#define PC_REGNUM 32 /* Contains program counter (FIXME?) */ -#define NPC_REGNUM 33 /* Contains the next program counter (FIXME?) */ -#define A0_REGNUM 34 /* Accumulator register 0 */ -#define A3_REGNUM 37 /* Accumulator register 1 */ - -#define R0_REGNUM 0 /* General Purpose Register 0 - for sim */ -#define Rn_REGNUM 31 /* Last General Purpose Register - for sim */ -#define An_REGNUM A3_REGNUM /* Last Accumulator register - for sim */ - -int -sim_fetch_register (SIM_DESC sd, int regnr, unsigned char *buf, int length) -{ - if (regnr == R0_REGNUM) - memset (buf, 0, sizeof (unsigned32)); - else if (regnr > R0_REGNUM && regnr <= Rn_REGNUM) - *(unsigned32*)buf = H2T_4 (STATE_CPU (sd, 0)->reg[regnr - R0_REGNUM]); - else if (regnr == PC_REGNUM) - *(unsigned32*)buf = H2T_4 (STATE_CPU (sd, 0)->cia.ip); - else if (regnr == NPC_REGNUM) - *(unsigned32*)buf = H2T_4 (STATE_CPU (sd, 0)->cia.dp); - else if (regnr >= A0_REGNUM && regnr <= An_REGNUM) - *(unsigned64*)buf = H2T_8 (STATE_CPU (sd, 0)->acc[regnr - A0_REGNUM]); - else - sim_io_error (sd, "sim_fetch_register - unknown register nr %d", regnr); - return -1; -} - - -int -sim_store_register (SIM_DESC sd, int regnr, unsigned char *buf, int length) -{ - if (regnr >= R0_REGNUM && regnr <= Rn_REGNUM) - STATE_CPU (sd, 0)->reg[regnr - R0_REGNUM] = T2H_4 (*(unsigned32*)buf); - else if (regnr == PC_REGNUM) - STATE_CPU (sd, 0)->cia.ip = T2H_4 (*(unsigned32*)buf); - else if (regnr == NPC_REGNUM) - STATE_CPU (sd, 0)->cia.dp = T2H_4 (*(unsigned32*)buf); - else if (regnr >= A0_REGNUM && regnr <= An_REGNUM) - STATE_CPU (sd, 0)->acc[regnr - A0_REGNUM] = T2H_8 (*(unsigned64*)buf); - else - sim_io_error (sd, "sim_store_register - unknown register nr %d", regnr); - return -1; -} - - -SIM_RC -sim_create_inferior (SIM_DESC sd, - struct _bfd *abfd, - char **argv, - char **envp) -{ - /* clear all registers */ - memset (&STATE_CPU (sd, 0)->reg, 0, sizeof (STATE_CPU (sd, 0)->reg)); - memset (&STATE_CPU (sd, 0)->acc, 0, sizeof (STATE_CPU (sd, 0)->acc)); - memset (&STATE_CPU (sd, 0)->cr, 0, sizeof (STATE_CPU (sd, 0)->cr)); - STATE_CPU (sd, 0)->is_user_mode = 0; - memset (&STATE_CPU (sd, 0)->cia, 0, sizeof (STATE_CPU (sd, 0)->cia)); - /* initialize any modules */ - sim_module_init (sd); - /* set the stack-pointer/program counter */ - if (abfd != NULL) - STATE_CPU (sd, 0)->cia.ip = bfd_get_start_address (abfd); - else - STATE_CPU (sd, 0)->cia.ip = 0; - STATE_CPU (sd, 0)->cia.dp = (STATE_CPU (sd, 0)->cia.ip - + sizeof (instruction_word)); - STATE_CPU (sd, 0)->cr[IE_CR] |= IE_CR_IE; - STATE_CPU (sd, 0)->reg[1] = TIC80_MEM_START + TIC80_MEM_SIZE - 16; - return SIM_RC_OK; -} - - -void -sim_do_command (SIM_DESC sd, char *cmd) -{ - if (sim_args_command (sd, cmd) != SIM_RC_OK) - sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); -} |