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[/] [or1k/] [tags/] [stable_0_2_0_rc2/] [or1ksim/] [toplevel.c] - Rev 28
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/* toplevel.c -- Top level simulator source file Copyright (C) 1999 Damjan Lampret, lampret@opencores.org This file is part of OpenRISC 1000 Architectural Simulator. 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Simulator commands. Help and version output. SIGINT processing. Stdout redirection is specific to linux (I need to fix this). */ #include "config.h" #include <stdio.h> #include <ctype.h> #include <string.h> #include <stdlib.h> #include <signal.h> #include <stdarg.h> #ifdef HAVE_LIBREADLINE #include <readline/readline.h> #include <readline/history.h> #endif /* HAVE_LIBREADLINE */ #include "arch.h" #include "parse.h" #include "abstract.h" #include "trace.h" #include "execute.h" #include "coff.h" /* CVS revision number. */ static const char rcsrev[] = "$Revision: 1.7 $"; /* Continuos run versus single step tracing switch. */ int cont_run; /* History of execution */ int histexec[HISTEXEC_LEN]; char *sim_commands [] = { "q", "t", "help", "de", "dm", "run", "pr", "pm", "pc", "reset", "break", "hist", "stats", "info", "r", 0 }; void debug(const char *format, ...) { #if DEBUG char *p; va_list ap; if ((p = malloc(1000)) == NULL) return; va_start(ap, format); (void) vsnprintf(p, 1000, format, ap); va_end(ap); printf("%s\n", p); fflush(stdout); free(p); #endif return; } void ctrl_c(signum) int signum; { cont_run = 1; signal(SIGINT, ctrl_c); } void version() { printf ("\n"); printf ("OpenRISC 1000 (OR16+OR32) Architectural Simulator, %s\n", rcsrev); printf ("Copyright (C) 1999 Damjan Lampret, lampret@opencores.org\n"); printf ("Copyright (C) 2000 Damjan Lampret, lampret@opencores.org\n"); printf (" Jimmy Chen-Min Chen, jimmy@ee.nctu.edu.tw\n"); printf (" Johan Rydberg, johan.rydberg@insight.se\n"); printf ("Visit http://www.opencores.org for more information about "); printf ("OpenRISC 1000 and\nother open source cores.\n\n"); printf ("This software comes with ABSOLUTELY NO WARRANTY; for "); printf ("details see COPYING.\nThis is free software, and you "); printf ("are welcome to redistribute it under certain\nconditions; "); printf ("for details see COPYING.\n"); } void help() { printf("q - quit simulator\n"); printf("r - display all registers\n"); printf("t - execute next instruction\n"); printf("run <cycles> [<hush>] - execute <cycles> instructions, no reg dump if hush\n"); printf("pr <r> <value> - patch register <r> with <value>\n"); printf("dm <fromaddr> [<toaddr>] - display memory from <fromaddr> to <toaddr>\n"); printf("de - debug insn memory\n"); printf("pm <addr> <value> - patch memory location <addr> with <value>\n"); printf("pc <value> - patch PC register with <value>\n"); printf("break <addr> - toggle breakpoint at address <addr>\n"); printf("reset - simulator reset\n"); printf("hist - execution history\n"); printf("stats <num|clear> - execution statistics num or clear it.\n"); printf("info - configuration info (caches etc.)\n"); printf("<cmd> > <filename> - redirect simulator stdout to <filename> (and not emulated printf)\n"); printf("help - available commands (this list)\n"); } void debugmem(); main(argc, argv) int argc; char *argv[]; { char *linestr; char item1[500], b2[500]; char *redirstr; int hush; if (argc != 2) { printf("Usage: %s <filename>\n", argv[0]); exit(-1); } #ifdef HAVE_LIBREADLINE initialize_readline (); /* Bind our completer. */ #endif version(); init_defconfig(); signal(SIGINT, ctrl_c); initstats(); loadcode(argv[1]); reset(); while(1) { #ifdef HAVE_LIBREADLINE linestr = readline("(sim) "); #else printf ("(sim) "); linestr = fgets(b2, sizeof b2, stdin); #endif if (!linestr) { break; } linestr = stripwhite (linestr); #ifdef HAVE_LIBREADLINE if (strlen(linestr) == 0) { char *l = repeat_last_command (); if (l) { free (linestr); linestr = l; } } if (*linestr) { add_history (linestr); } #endif /* HAVE_LIBREADLINE */ if (redirstr = strstr(linestr, ">")) { *redirstr = '\0'; strtoken(&redirstr[1], item1, 1); freopen(item1, "w+", stdout); } strtoken(linestr, item1, 1); if (strcmp(item1, "q") == 0) /* quit */ exit(0); else if (strcmp(item1, "help") == 0) /* help */ help(); else if (strcmp(item1, "t") == 0) { /* trace */ cont_run = 1; } else if (strcmp(item1, "dm") == 0) { /* dump memory */ char item2[20]; char item3[20]; static int from = 0, to = 0; strtoken(linestr, item2, 2); strtoken(linestr, item3, 3); if (strlen(item2)) { if (item2[0] == '_') from = eval_label(item2); else from = strtoul(item2, NULL, 0); to = from + 0x40; } if (strlen(item3)) to = strtoul(item3, NULL, 0); dumpmemory(from, to); printf("\n"); } else if (strcmp(item1, "pm") == 0) { /* patch memory */ char item2[20]; char item3[20]; static int addr = 0; strtoken(linestr, item2, 2); strtoken(linestr, item3, 3); if (strlen(item2)) if (item2[0] == '_') addr = eval_label(item2); else addr = strtoul(item2, NULL, 0); set_mem32(addr, strtoul(item3, NULL, 0)); } else if (strcmp(item1, "pr") == 0) { /* patch regs */ char item2[20]; char item3[20]; strtoken(linestr, item2, 2); strtoken(linestr, item3, 3); set_reg32(item2, strtoul(item3, NULL, 0)); } else if (strcmp(item1, "pc") == 0) { /* patch PC */ char item2[20]; strtoken(linestr, item2, 2); pctemp = strtoul(item2, NULL, 0); } else if (strcmp(item1, "break") == 0) { /* set/clear breakpoint */ char item2[20]; strtoken(linestr, item2, 2); set_insnbrkpoint(strtoul(item2, NULL, 0)); } else if (strcmp(item1, "r") == 0) { /* dump regs */ dumpreg(); } else if (strcmp(item1, "de") == 0) { /* reset simulator */ debugmem(); } else if (strcmp(item1, "reset") == 0) { /* reset simulator */ reset(); } else if (strcmp(item1, "hist") == 0) { /* dump history */ int i; for(i = HISTEXEC_LEN; i; i--) dumpmemory(histexec[i - 1], histexec[i - 1] + 4); } else if (strcmp(item1, "run") == 0) { /* run */ char item2[20]; char item3[20]; strtoken(linestr, item2, 2); strtoken(linestr, item3, 3); if (strcmp(item3, "hush") == 0) hush = 1; else hush = 0; cont_run = strtoul(item2, NULL, 0); } else if (strcmp(item1, "stats") == 0) { /* stats */ char item2[20]; int i = 0; strtoken(linestr, item2, 2); if (strcmp(item2, "clear") == 0) { initstats(); printf("Cleared.\n"); } else { i = strtoul(item2, NULL, 0); printstats(i); } } else if (strcmp(item1, "info") == 0) { /* configuration info */ bpb_info(); btic_info(); ic_info(); dc_info(); } else { printf("%s: Unknown command.\n", linestr); } while(cont_run) { cont_run--; fetch(); decode(&iqueue[0]); execute(); if (!hush) dumpreg(); } hush = 0; fflush(stdout); freopen("/dev/fd/0", "w+", stdout); #ifdef HAVE_LIBREADLINE if (linestr) free (linestr); #endif } exit(0); } #ifdef HAVE_LIBREADLINE char *command_generator (); char **sim_completion (); /* Tell the GNU readline library how to complete. We want to try to complete on command names if this is the first word in the line, or on filenames if not. */ void initialize_readline () { /* Allow conditional parsing of the ~/.inputrc file. */ rl_readline_name = "or1ksim"; /* Tell the completer that we want a crack first. */ rl_attempted_completion_function = (CPPFunction *)sim_completion; } /* Attempt to complete on the contents of TEXT. START and END bound the region of rl_line_buffer that contains the word to complete. TEXT is the word to complete. We can use the entire contents of rl_line_buffer in case we want to do some simple parsing. Return the array of matches, or NULL if there aren't any. */ char ** sim_completion (text, start, end) char *text; int start, end; { char **matches; matches = (char **)NULL; /* If this word is at the start of the line, then it is a command to complete. Otherwise it is the name of a file in the current directory. */ if (start == 0) matches = completion_matches (text, command_generator); return (matches); } /* Generator function for command completion. STATE lets us know whether to start from scratch; without any state (i.e. STATE == 0), then we start at the top of the list. */ char * command_generator (text, state) char *text; int state; { static int list_index, len; char *name; /* If this is a new word to complete, initialize now. This includes saving the length of TEXT for efficiency, and initializing the index variable to 0. */ if (!state) { list_index = 0; len = strlen (text); } /* Return the next name which partially matches from the command list. */ while (name = sim_commands[list_index]) { list_index++; if (strncmp (name, text, len) == 0) return (dupstr(name)); } /* If no names matched, then return NULL. */ return ((char *)NULL); } char * dupstr (s) char *s; { char *r; r = xmalloc (strlen (s) + 1); strcpy (r, s); return (r); } /* Repeats the last command. */ char * repeat_last_command () { int offset = where_history (); HIST_ENTRY *hist; if (hist = history_get (offset)) { return dupstr (hist->line); } return 0; } #endif /* Strip whitespace from the start and end of STRING. Return a pointer into STRING. */ #ifndef whitespace #define whitespace(a) ((a) == '\t' ? 1 : ((a) == ' '? 1 : 0)) #endif char * stripwhite (string) char *string; { register char *s, *t; for (s = string; whitespace (*s); s++) ; if (*s == 0) return (s); t = s + strlen (s) - 1; while (t > s && whitespace (*t)) t--; *++t = '\0'; return s; } void debugmem() { int i; printf("starting to dump mem...\n"); for(i=0; i<500; i++) { printf("i=%x :: ", i); if(strlen(mem[i].label) != 0) printf("label: %s |", mem[i].label->name); printf("%s ", mem[i].insn->insn); if(strlen(mem[i].insn->op1) != 0) printf("%s ", mem[i].insn->op1); if(strlen(mem[i].insn->op2) != 0) printf("%s ", mem[i].insn->op2); if(strlen(mem[i].insn->op3) != 0) printf("%s ", mem[i].insn->op3); if(strlen(mem[i].insn->op4) != 0) printf("%s ", mem[i].insn->op4); printf("\n"); } }
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