/* toplevel.c -- Top level simulator source file
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/* toplevel.c -- Top level simulator source file
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Simulator commands. Help and version output. SIGINT processing.
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/* Simulator commands. Help and version output. SIGINT processing.
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Stdout redirection is specific to linux (I need to fix this). */
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Stdout redirection is specific to linux (I need to fix this). */
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#include <stdio.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <ctype.h>
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#include <string.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdarg.h>
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#include "arch.h"
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#include "arch.h"
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#include "parse.h"
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#include "parse.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "trace.h"
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#include "trace.h"
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#include "execute.h"
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#include "execute.h"
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/* CVS revision number. */
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/* CVS revision number. */
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static const char rcsrev[] = "$Revision: 1.1.1.1 $";
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static const char rcsrev[] = "$Revision: 1.2 $";
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/* Continuos run versus single step tracing switch. */
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/* Continuos run versus single step tracing switch. */
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int cont_run;
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int cont_run;
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/* History of execution */
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/* History of execution */
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int histexec[HISTEXEC_LEN];
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int histexec[HISTEXEC_LEN];
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void debug(const char *format, ...)
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void debug(const char *format, ...)
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{
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{
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#if DEBUG
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#if DEBUG
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char *p;
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char *p;
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va_list ap;
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va_list ap;
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if ((p = malloc(1000)) == NULL)
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if ((p = malloc(1000)) == NULL)
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return;
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return;
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va_start(ap, format);
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va_start(ap, format);
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(void) vsnprintf(p, 1000, format, ap);
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(void) vsnprintf(p, 1000, format, ap);
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va_end(ap);
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va_end(ap);
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printf("%s\n", p);
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printf("%s\n", p);
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fflush(stdout);
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fflush(stdout);
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free(p);
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free(p);
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#endif
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#endif
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return;
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return;
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}
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}
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void ctrl_c(int signum)
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void ctrl_c(int signum)
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{
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{
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cont_run = 1;
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cont_run = 1;
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signal(SIGINT, ctrl_c);
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signal(SIGINT, ctrl_c);
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}
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}
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void version()
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void version()
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{
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{
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printf("\n");
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printf("\n");
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printf("OpenRISC 1000 Architectural Simulator, revision %s\n", rcsrev);
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printf("OpenRISC 1000 Architectural Simulator, revision %s\n", rcsrev);
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printf("Copyright (C) 1999 Damjan Lampret, lampret@opencores.org\n");
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printf("Copyright (C) 1999 Damjan Lampret, lampret@opencores.org\n");
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printf("Visit http://www.opencores.org for more information about ");
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printf("Visit http://www.opencores.org for more information about ");
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printf("OpenRISC 1000 and\nother open source cores.\n\n");
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printf("OpenRISC 1000 and\nother open source cores.\n\n");
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printf("This software comes with ABSOLUTELY NO WARRANTY; for ");
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printf("This software comes with ABSOLUTELY NO WARRANTY; for ");
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printf("details see COPYING.\nThis is free software, and you ");
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printf("details see COPYING.\nThis is free software, and you ");
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printf("are welcome to redistribute it under certain\nconditions; ");
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printf("are welcome to redistribute it under certain\nconditions; ");
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printf("for details see COPYING.\n");
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printf("for details see COPYING.\n");
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}
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}
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void help()
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void help()
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{
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{
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printf("q - quit simulator\n");
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printf("q - quit simulator\n");
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printf("r - display all registers\n");
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printf("r - display all registers\n");
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printf("t - execute next instruction\n");
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printf("t - execute next instruction\n");
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printf("run <cycles> [<hush>] - execute <cycles> instructions, no reg dump if hush\n");
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printf("run <cycles> [<hush>] - execute <cycles> instructions, no reg dump if hush\n");
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printf("pr <r> <value> - patch register <r> with <value>\n");
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printf("pr <r> <value> - patch register <r> with <value>\n");
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printf("dm <fromaddr> [<toaddr>] - display memory from <fromaddr> to <toaddr>\n");
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printf("dm <fromaddr> [<toaddr>] - display memory from <fromaddr> to <toaddr>\n");
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printf("pm <addr> <value> - patch memory location <addr> with <value>\n");
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printf("pm <addr> <value> - patch memory location <addr> with <value>\n");
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printf("pc <value> - patch PC register with <value>\n");
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printf("pc <value> - patch PC register with <value>\n");
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printf("brk <addr> - toggle breakpoint at address <addr>\n");
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printf("brk <addr> - toggle breakpoint at address <addr>\n");
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printf("hist - execution history\n");
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printf("hist - execution history\n");
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printf("stats <num|clear> - execution statistics num or clear it.\n");
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printf("info - configuration info (caches etc.)\n");
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printf("<cmd> > <filename> - redirect simulator stdout to <filename> (and not emulated printf)\n");
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printf("<cmd> > <filename> - redirect simulator stdout to <filename> (and not emulated printf)\n");
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printf("help - available commands (this list)\n");
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printf("help - available commands (this list)\n");
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}
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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char linestr[500];
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char linestr[500];
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char item1[500];
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char item1[500];
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char *redirstr;
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char *redirstr;
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int hush;
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int hush;
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if (argc != 2) {
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if (argc != 2) {
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printf("Usage: %s <filename>\n", argv[0]);
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printf("Usage: %s <filename>\n", argv[0]);
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exit(-1);
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exit(-1);
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}
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}
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version();
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version();
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init_defconfig();
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signal(SIGINT, ctrl_c);
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signal(SIGINT, ctrl_c);
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initstats();
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initstats();
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loadcode(argv[1]);
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loadcode(argv[1]);
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reset();
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reset();
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while(1) {
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while(1) {
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printf("\n# ");
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printf("\n# ");
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fgets(linestr, sizeof(linestr), stdin);
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fgets(linestr, sizeof(linestr), stdin);
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if (redirstr = strstr(linestr, ">")) {
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if (redirstr = strstr(linestr, ">")) {
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*redirstr = '\0';
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*redirstr = '\0';
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strtoken(&redirstr[1], item1, 1);
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strtoken(&redirstr[1], item1, 1);
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freopen(item1, "w+", stdout);
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freopen(item1, "w+", stdout);
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}
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}
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strtoken(linestr, item1, 1);
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strtoken(linestr, item1, 1);
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if (strcmp(item1, "q") == 0) /* quit */
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if (strcmp(item1, "q") == 0) /* quit */
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exit(0);
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exit(0);
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else
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else
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if (strcmp(item1, "help") == 0) /* help */
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if (strcmp(item1, "help") == 0) /* help */
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help();
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help();
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else
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else
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if (strcmp(item1, "t") == 0) { /* trace */
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if (strcmp(item1, "t") == 0) { /* trace */
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cont_run = 1;
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cont_run = 1;
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} else
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} else
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if (strcmp(item1, "dm") == 0) { /* dump memory */
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if (strcmp(item1, "dm") == 0) { /* dump memory */
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char item2[20];
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char item2[20];
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char item3[20];
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char item3[20];
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static int from = 0, to = 0;
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static int from = 0, to = 0;
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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strtoken(linestr, item3, 3);
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strtoken(linestr, item3, 3);
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if (strlen(item2)) {
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if (strlen(item2)) {
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if (item2[0] == '_')
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if (item2[0] == '_')
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from = eval_label(item2);
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from = eval_label(item2);
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else
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else
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from = strtoul(item2, NULL, 0);
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from = strtoul(item2, NULL, 0);
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to = from + 0x40;
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to = from + 0x40;
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}
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}
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if (strlen(item3))
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if (strlen(item3))
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to = strtoul(item3, NULL, 0);
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to = strtoul(item3, NULL, 0);
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dumpmemory(from, to);
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dumpmemory(from, to);
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} else
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} else
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if (strcmp(item1, "pm") == 0) { /* patch memory */
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if (strcmp(item1, "pm") == 0) { /* patch memory */
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char item2[20];
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char item2[20];
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char item3[20];
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char item3[20];
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static int addr = 0;
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static int addr = 0;
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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strtoken(linestr, item3, 3);
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strtoken(linestr, item3, 3);
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if (strlen(item2))
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if (strlen(item2))
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if (item2[0] == '_')
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if (item2[0] == '_')
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addr = eval_label(item2);
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addr = eval_label(item2);
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else
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else
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addr = strtoul(item2, NULL, 0);
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addr = strtoul(item2, NULL, 0);
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set_mem32(addr, strtoul(item3, NULL, 0));
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set_mem32(addr, strtoul(item3, NULL, 0));
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} else
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} else
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if (strcmp(item1, "pr") == 0) { /* patch regs */
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if (strcmp(item1, "pr") == 0) { /* patch regs */
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char item2[20];
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char item2[20];
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char item3[20];
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char item3[20];
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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strtoken(linestr, item3, 3);
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strtoken(linestr, item3, 3);
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set_reg32(item2, strtoul(item3, NULL, 0));
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set_reg32(item2, strtoul(item3, NULL, 0));
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} else
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} else
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if (strcmp(item1, "pc") == 0) { /* patch PC */
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if (strcmp(item1, "pc") == 0) { /* patch PC */
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char item2[20];
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char item2[20];
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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pctemp = strtoul(item2, NULL, 0);
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pctemp = strtoul(item2, NULL, 0);
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} else
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} else
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if (strcmp(item1, "brk") == 0) { /* set/clear breakpoint */
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if (strcmp(item1, "brk") == 0) { /* set/clear breakpoint */
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char item2[20];
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char item2[20];
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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set_insnbrkpoint(strtoul(item2, NULL, 0));
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set_insnbrkpoint(strtoul(item2, NULL, 0));
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} else
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} else
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if (strcmp(item1, "r") == 0) { /* dump regs */
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if (strcmp(item1, "r") == 0) { /* dump regs */
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dumpreg();
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dumpreg();
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} else
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} else
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if (strcmp(item1, "hist") == 0) { /* dump history */
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if (strcmp(item1, "hist") == 0) { /* dump history */
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int i;
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int i;
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for(i = HISTEXEC_LEN; i; i--)
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for(i = HISTEXEC_LEN; i; i--)
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dumpmemory(histexec[i - 1], histexec[i - 1] + 4);
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dumpmemory(histexec[i - 1], histexec[i - 1] + 4);
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} else
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} else
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if (strcmp(item1, "run") == 0) { /* run */
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if (strcmp(item1, "run") == 0) { /* run */
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char item2[20];
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char item2[20];
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char item3[20];
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char item3[20];
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strtoken(linestr, item2, 2);
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strtoken(linestr, item2, 2);
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strtoken(linestr, item3, 3);
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strtoken(linestr, item3, 3);
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if (strcmp(item3, "hush") == 0)
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if (strcmp(item3, "hush") == 0)
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hush = 1;
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hush = 1;
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else
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else
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hush = 0;
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hush = 0;
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cont_run = strtoul(item2, NULL, 0);
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cont_run = strtoul(item2, NULL, 0);
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} else
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} else
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if (strcmp(item1, "stats") == 0) { /* stats */
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if (strcmp(item1, "stats") == 0) { /* stats */
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printstats();
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char item2[20];
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int i = 0;
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strtoken(linestr, item2, 2);
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if (strcmp(item2, "clear") == 0) {
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initstats();
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printf("Cleared.\n");
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} else {
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i = strtoul(item2, NULL, 0);
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printstats(i);
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}
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} else
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if (strcmp(item1, "info") == 0) { /* configuration info */
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bpb_info();
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btic_info();
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ic_info();
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dc_info();
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}
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}
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while(cont_run) {
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while(cont_run) {
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cont_run--;
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cont_run--;
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fetch();
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fetch();
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decode(&iqueue[0]);
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decode(&iqueue[0]);
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execute();
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execute();
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if (!hush)
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if (!hush)
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dumpreg();
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dumpreg();
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}
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}
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hush = 0;
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hush = 0;
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fflush(stdout);
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fflush(stdout);
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freopen("/dev/fd/0", "w+", stdout);
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freopen("/dev/fd/0", "w+", stdout);
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}
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}
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exit(0);
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exit(0);
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}
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}
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