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Diffstat (limited to 'mixlib/xmix_vm_handlers.c')
| -rw-r--r-- | mixlib/xmix_vm_handlers.c | 1387 |
1 files changed, 1387 insertions, 0 deletions
diff --git a/mixlib/xmix_vm_handlers.c b/mixlib/xmix_vm_handlers.c new file mode 100644 index 0000000..ba7052b --- /dev/null +++ b/mixlib/xmix_vm_handlers.c @@ -0,0 +1,1387 @@ +/* -*-c-*- -------------- xmix_vm_handlers.c : + * Implementation of the functions declared in xmix_vm_handlers.h + * ------------------------------------------------------------------ + * $Id: xmix_vm_handlers.c,v 1.10 2005/09/20 19:43:13 jao Exp $ + * ------------------------------------------------------------------ + * Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + + +#include "xmix_vm_handlers.h" + +/* available commands (in the same order as the type enum) */ +mix_vm_command_info_t commands_[] = { + { "help", cmd_help_, N_("Display this text"), "help [COMMAND]"}, + { "load", cmd_load_, N_("Load a MIX code file"), "load FILENAME"}, + { "edit", cmd_edit_, N_("Edit a MIXAL source file"), "edit [FILENAME]"}, + { "pedit", cmd_pedit_, N_("Print the external editor command"), "pedit"}, + { "sedit", cmd_sedit_, N_("Set the external editor command"), + "sedit COMMAND (e.g. emacs %s)"}, + { "compile", cmd_compile_, N_("Compile a MIXAL source file"), + "compile [FILENAME]"}, + { "pasm", cmd_pasm_, N_("Print the compile command"), "pasm"}, + { "sasm", cmd_sasm_, N_("Set the compile command"), + "sasm COMMAND (e.g. mixasm -g -l %s)"}, + { "run", cmd_run_, N_("Run loaded or given MIX code file"), + "run [FILENAME]"}, + { "next", cmd_next_, N_("Execute next instruction(s)"), + "next [NO_OF_INS]"}, + { "pstat", cmd_pstat_, N_("Print current vm status"), "pstat"}, + { "pc", cmd_pc_, N_("Print program counter value"), "pc" }, + { "psym", cmd_psym_, N_("Print symbol value"), "psym [SYMBOLNAME]"}, + { "preg", cmd_preg_, N_("Print register value"), + "preg [A | X | J | I[1-6]]"}, + { "pflags", cmd_pflags_, N_("Print comparison and overflow flags"), + "pflags"}, + { "pall", cmd_pall_, N_("Print all registers and flags"), "pall"}, + { "pmem", cmd_pmem_, N_("Print memory contents in address range"), + "pmem FROM[-TO]"}, + { "sreg", cmd_sreg_, N_("Set register value"), + "sreg A | X | J | I[1-6] VALUE"}, + { "scmp", cmd_scmp_, N_("Set comparison flag value"), "scmp L | E | G"}, + { "sover", cmd_sover_, N_("Set overflow flag value"), "sover T | F" }, + { "smem", cmd_smem_, N_("Set memory contents in given address"), + "smem ADDRESS VALUE"}, + { "ssym", cmd_ssym_, N_("Set a symbol\'s value"), "ssym SYMBOL WEXPR"}, + { "sbp", cmd_sbp_, N_("Set break point at given line"), "sbp LINENO"}, + { "cbp", cmd_cbp_, N_("Clear break point at given line"), "cbp LINENO"}, + { "sbpa", cmd_sbpa_, N_("Set break point at given address"), + "sbpa ADDRESS"}, + { "cbpa", cmd_cbpa_, N_("Clear break point at given address"), + "cbpa ADDRESS"}, + { "sbpr", cmd_sbpr_, N_("Set conditional breakpoint on register change"), + "sbpr A | X | J | I[1-6]"}, + { "cbpr", cmd_cbpr_, N_("Clear conditional breakpoint on register change"), + "sbpr A | X | J | I[1-6]"}, + { "sbpm", cmd_sbpm_, N_("Set conditional breakpoint on mem cell change"), + "sbpm ADDRESS"}, + { "cbpm", cmd_cbpm_, N_("Clear conditional breakpoint on mem cell change"), + "cbpm ADDRESS"}, + { "sbpc", cmd_sbpc_, + N_("Set conditional breakpoint on comparison flag change"), "sbpc"}, + { "cbpc", cmd_cbpc_, + N_("Clear conditional breakpoint on comparison flag change"), "cbpc"}, + { "sbpo", cmd_sbpo_, + N_("Set conditional breakpoint on overflow toggled"), "sbpo"}, + { "cbpo", cmd_cbpo_, + N_("Set conditional breakpoint on overflow toggled"), "cbpo"}, + { "cabp", cmd_cabp_, N_("Clear all breakpoints"), "cabp"}, + { "weval", cmd_weval_, N_("Evaluate a given W-expression"), "weval WEXPR"}, + { "w2d", cmd_w2d_, N_("Convert a MIX word to its decimal value"), + "w2d WORD"}, + { "strace", cmd_strace_, N_("Turn on/off instruction tracing"), + "strace on|off"}, + { "pbt", cmd_pbt_, N_("Print backtrace of executed instructions"), + "pbt [INS_NO] (e.g pbt 5)"}, + { "stime", cmd_stime_, N_("Turn on/off timing statistics"), + "stime on|off"}, + { "ptime", cmd_ptime_, N_("Print current time statistics"), "ptime"}, + { "sddir", cmd_sddir_, N_("Set devices directory"),"sddir NEWDIR"}, + { "pddir", cmd_pddir_, N_("Print current devices directory"),"pddir"}, + { "slog", cmd_slog_, N_("Turn on/off message logging"), "slog on|off"}, + { "pprog", cmd_pprog_, N_("Print the current program path"), "pprog"}, + { "psrc", cmd_psrc_, N_("Print the current program source path"), "psrc"}, + { "pline", cmd_pline_, + N_("Print the current (or a given) program source line"), "pline [LINENO]"}, + { NULL, NULL, NULL, NULL}, +}; + +/* trace current instruction */ +static void +do_trace_ (mix_vm_cmd_dispatcher_t *dis, gboolean error) +{ + enum {BUFFER_LEN = 128}; + static gchar STRINS[BUFFER_LEN]; + + const mix_src_file_t *file = mix_vm_get_src_file (dis->vm); + const gchar *line = "\n"; + mix_address_t loc = mix_vm_get_prog_count (dis->vm); + mix_word_t ins = mix_vm_get_addr_contents (dis->vm, loc); + mix_ins_t fins; + mix_word_to_ins_uncheck (ins, fins); + mix_ins_to_string_in_buffer (&fins, STRINS, BUFFER_LEN); + + if (file != NULL) + { + gulong b = mix_vm_get_break_lineno (dis->vm); + if (b > 0) line = mix_src_file_get_line (file, b); + } + + if (!error) + log_message_ (dis, "%d: [%-15s]\t%s", (gint)loc, STRINS, line); + else + log_error_ (dis, "%d: [%-15s]\t%s", (gint)loc, STRINS, line); +} + +static void +trace_ (mix_vm_cmd_dispatcher_t *dis) +{ + if (wants_logs_ (dis)) + { + do_trace_ (dis, FALSE); + } +} + +#define trace_error_(dis) do_trace_ (dis, TRUE) + +/* run a program tracing executed instructions */ +static int +run_and_trace_ (mix_vm_cmd_dispatcher_t *dis) +{ + int k = MIX_VM_RUNNING; + if (!dis->trace) + return mix_vm_run (dis->vm); + else while (k == MIX_VM_RUNNING) + { + trace_ (dis); + k = mix_vm_exec_next (dis->vm); + } + return k; +} + +/* print time statistics */ +static void +print_time_ (mix_vm_cmd_dispatcher_t *dis) +{ + dis->laptime = mix_vm_get_uptime (dis->vm) - dis->uptime; + dis->uptime += dis->laptime; + dis->progtime += dis->laptime; + if (dis->printtime) + fprintf + (dis->out, + _("Elapsed time: %ld /Total program time: %ld (Total uptime: %ld)\n"), + dis->laptime, dis->progtime, dis->uptime); +} + + +/* commands */ +static void +print_help_ (gpointer key, gpointer val, gpointer data) +{ + mix_vm_command_info_t *info = (mix_vm_command_info_t *)val; + if (info) + fprintf ((FILE *)data, "%-15s%s\n", info->name, info->doc); +} + +gboolean +cmd_help_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg && strlen (arg) > 0) + { + int i; + mix_vm_command_info_t *info = + (mix_vm_command_info_t *)g_hash_table_lookup + (dis->commands, (gpointer)arg); + for (i = 0; info == NULL && commands_[i].name; i++) + if (!strcmp (commands_[i].name, arg)) info = commands_ + i; + if (info) + { + fprintf (dis->out , _("%-15s%s.\n%-15sUsage: %s\n"), + info->name, info->doc, "", info->usage); + return TRUE; + } + fprintf (dis->out, _("No commands match `%s'\n"), arg); + return FALSE; + } + else + { + int i = 0; + fprintf (dis->out, _("Possible commands are:\n")); + for (i = 0; commands_[i].name; ++i) + fprintf (dis->out, "%-15s%s\n", commands_[i].name, commands_[i].doc); + g_hash_table_foreach (dis->commands, print_help_, (gpointer)dis->out); + return TRUE; + } +} + +gboolean +cmd_load_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + errno = 0; + if (arg == NULL || *arg == '\0') + { + log_error_ (dis, _("Missing file name")); + return FALSE; + } + mix_eval_remove_symbols_from_table (dis->eval, + mix_vm_get_symbol_table (dis->vm)); + if (!mix_vm_load_file (dis->vm, arg) ) + { + log_error_ (dis, _("Cannot load %s: "), arg); + if ( errno == 0 ) + log_error_ (dis, _("Wrong file format")); + else + log_error_ (dis, "%s", strerror (errno)); + return FALSE; + } + + if (dis->program != arg) + { + if (dis->program) g_free (dis->program); + dis->program = mix_file_complete_name (arg, MIX_CODE_DEFEXT); + } + + mix_eval_set_symbols_from_table (dis->eval, + mix_vm_get_symbol_table (dis->vm)); + if (wants_logs_ (dis)) + log_message_ (dis, _("Program loaded. Start address: %d"), + mix_vm_get_prog_count (dis->vm)); + + dis->laptime = dis->progtime = 0; + return TRUE; +} + +gboolean +cmd_edit_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (dis->editor == NULL) + { + log_error_ (dis, _("Editor not specified (use sedit)")); + return FALSE; + } + if (!arg || *arg == '\0') arg = mix_vm_cmd_dispatcher_get_src_file_path (dis); + if (!arg) + { + log_error_ (dis, _("MIXAL source file path not found")); + return FALSE; + } + else + { + gchar *cmd = g_strdup_printf (dis->editor, arg); + if (wants_logs_ (dis)) log_message_ (dis, cmd); + system (cmd); + if (wants_logs_ (dis)) log_message_ (dis, _(" ...done")); + g_free (cmd); + return TRUE; + } +} + +gboolean +cmd_compile_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (dis->assembler == NULL) + { + log_error_ (dis, _("MIX assembler not specified (use sasm)")); + return FALSE; + } + if (!arg || *arg == '\0') arg = mix_vm_cmd_dispatcher_get_src_file_path (dis); + if (!arg) + { + log_error_ (dis, _("MIXAL source file path not found")); + return FALSE; + } + else + { + gchar *cmd = g_strdup_printf (dis->assembler, arg); + if (wants_logs_ (dis)) log_message_ (dis, cmd); + if (system (cmd) == EXIT_SUCCESS && wants_logs_ (dis)) + log_message_ (dis, _("Successful compilation")); + g_free (cmd); + return TRUE; + } +} + +gboolean +cmd_run_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg != NULL && *arg != '\0' && cmd_load_ (dis, arg) != TRUE) + return FALSE; + + if (mix_vm_is_halted (dis->vm)) cmd_load_ (dis, dis->program); + + if (wants_logs_ (dis)) log_message_ (dis, _("Running ...")); + + switch (run_and_trace_ (dis)) + { + case MIX_VM_HALT: + if (wants_logs_ (dis)) log_message_ (dis, _("... done")); + break; + case MIX_VM_BREAK: + if (wants_logs_ (dis)) + { + gulong line = mix_vm_get_break_lineno (dis->vm); + if (line != 0) + log_message_ + (dis, _("... stopped: breakpoint at line %ld (address %d)"), + line, mix_vm_get_prog_count (dis->vm)); + else + log_message_ (dis, _("... stopped: breakpoint at address %d"), + mix_vm_get_prog_count (dis->vm)); + } + break; + case MIX_VM_COND_BREAK: + if (wants_logs_ (dis)) + { + gulong line = mix_vm_get_break_lineno (dis->vm); + if (line != 0) + log_message_ (dis, _("... stopped: %s (line %ld, address %d)"), + mix_vm_get_last_breakpoint_message (dis->vm), + line, mix_vm_get_prog_count (dis->vm)); + else + log_message_ (dis, _("... stopped: %s (address %d)"), + mix_vm_get_last_breakpoint_message (dis->vm), + mix_vm_get_prog_count (dis->vm)); + } + break; + case MIX_VM_ERROR: + log_error_ (dis, _("%s:"), mix_vm_get_last_error_string (dis->vm)); + trace_error_ (dis); + break; + default: + g_assert_not_reached (); + break; + } + + if (wants_logs_ (dis)) print_time_ (dis); + + return TRUE; +} + +gboolean +cmd_next_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + int ins_no = 1; + int k; + + if ( strlen (arg) != 0 ) + { + int k = 0; + while (isdigit (arg[k])) + k++; + if (arg[k] != '\0') + { + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + ins_no = atoi (arg); + } + + if (mix_vm_is_halted (dis->vm)) cmd_load_ (dis, dis->program); + + while ( ins_no-- > 0 ) + { + if (dis->trace) trace_ (dis); + k = mix_vm_exec_next (dis->vm); + if (k == MIX_VM_HALT) + { + if (wants_logs_ (dis)) + log_message_(dis, _("End of program reached at address %d"), + mix_vm_get_prog_count (dis->vm)); + break; + } + else if (k == MIX_VM_ERROR) + { + log_error_ (dis, _("%s:"), mix_vm_get_last_error_string (dis->vm)); + trace_error_ (dis); + break; + } + } + if (wants_logs_ (dis)) print_time_ (dis); + + return TRUE; +} + +gboolean +cmd_pc_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + fprintf (dis->out, "Current address: %d\n", mix_vm_get_prog_count (dis->vm)); + return TRUE; +} + +gboolean +cmd_psym_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gboolean result = FALSE; + const mix_symbol_table_t *table = mix_eval_symbol_table (dis->eval); + if ( table == NULL ) + log_error_ (dis, _("Symbol table not available")); + else if (arg != NULL && *arg != '\0') + { + if ( mix_symbol_table_is_defined (table, arg) ) + { + mix_word_print_to_file (mix_symbol_table_value (table, arg), + NULL, dis->out); + putc ('\n', dis->out); + result = TRUE; + } + else + fprintf (dis->out, _("%s: symbol not defined\n"), arg); + } + else + { + mix_symbol_table_print (table, MIX_SYM_ROWS, dis->out, TRUE); + result = TRUE; + } + + return result; +} + +gboolean +cmd_preg_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + mix_dump_context_set_opt (dis->dump, MIX_DUMP_NONE); + if ( strlen (arg) == 0 ) + mix_dump_context_add_opt (dis->dump, MIX_DUMP_rALL); + else switch (*arg) + { + case 'A': + mix_dump_context_add_opt (dis->dump, MIX_DUMP_rA); + break; + case 'X': + mix_dump_context_add_opt (dis->dump, MIX_DUMP_rX); + break; + case 'J': + mix_dump_context_add_opt (dis->dump, MIX_DUMP_rJ); + break; + case 'I': + { + if ( strlen (arg) == 1 ) + mix_dump_context_add_opt (dis->dump, MIX_DUMP_rIa); + else + { + static gint32 opt[] = { MIX_DUMP_rI1, MIX_DUMP_rI2, + MIX_DUMP_rI3, MIX_DUMP_rI4, + MIX_DUMP_rI5, MIX_DUMP_rI6 + }; + int i = arg[1] - '1'; + if ( i < 0 || i > 5 ) + { + log_error_ (dis, _("Invalid I index: %d"), i); + return FALSE; + } + mix_dump_context_add_opt (dis->dump, opt[i]); + } + } + break; + default: + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + mix_vm_dump (dis->vm, dis->dump); + return TRUE; +} + +gboolean +cmd_pflags_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + mix_dump_context_set_opt (dis->dump, MIX_DUMP_CMP | MIX_DUMP_OVER); + mix_vm_dump (dis->vm, dis->dump); + return TRUE; +} + +gboolean +cmd_pall_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + mix_dump_context_set_opt (dis->dump, MIX_DUMP_ALL_NOMEM); + mix_vm_dump (dis->vm, dis->dump); + return TRUE; +} + +gboolean +cmd_pmem_ (mix_vm_cmd_dispatcher_t *dis, const gchar *carg) +{ + glong begin = MIX_SHORT_ZERO, end = MIX_SHORT_ZERO; + int i = 0; + gboolean error = FALSE; + gchar *arg = NULL; + + if ( strlen (carg) == 0 ) + { + log_error_ (dis, _("Missing memory address")); + return FALSE; + } + arg = g_strdup (carg); + while (isdigit (arg[i])) + i++; + while (isspace (arg[i])) + i++; + if (arg[i] == '\0') + begin = end = atol (arg); + else if (arg[i] == '-') + { + gchar *narg; + arg[i++] = '\0'; + begin = atol (arg); + narg = arg + i; + i = 0; + while (isdigit (narg[i])) + i++; + while (isspace (narg[i])) + i++; + if (narg[i] != '\0') + error = TRUE; + else + end = atol (narg); + } + else + error = TRUE; + + if (error) + { + log_error_ (dis, _("Invalid argument: %s"), arg); + } + else if ( end < begin || end > MIX_VM_CELL_NO - 1 ) + { + log_error_ (dis, _("Invalid range: %ld-%ld"), begin, end); + error = TRUE; + } + else + { + mix_dump_context_set_opt (dis->dump, MIX_DUMP_CELLS); + mix_dump_context_range (dis->dump, mix_short_new (begin), + mix_short_new (end + 1)); + mix_vm_dump (dis->vm, dis->dump); + } + g_free (arg); + return !error; +} + +gboolean +cmd_sreg_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + int i = 0; + char reg = arg[0]; + gboolean ok = TRUE; + long value; + + i = (reg == 'I') ? 2 : 1; + ok = strlen (arg) > 2 && isspace (arg[i]); + if (ok) + { + while (isspace (arg[i])) i++; + ok = isdigit (arg[i]) || arg[i] == '+' || arg[i] == '-'; + if (ok) + { + value = atol (arg + i); + if (arg[i] == '+' || arg[i] == '-') i++; + while (isdigit (arg[i])) i++; + ok = (arg[i] == '\0'); + if (ok) + switch (reg) + { + case 'A': + mix_vm_set_rA (dis->vm, mix_word_new (value)); + break; + case 'X': + mix_vm_set_rX (dis->vm, mix_word_new (value)); + break; + case 'J': + if ( value >= 0 ) + mix_vm_set_rJ (dis->vm, mix_short_new (value)); + else + ok = FALSE; + break; + case 'I': + { + guint k = arg[1] - '0'; + if ( k < 7 ) + mix_vm_set_rI (dis->vm, k, mix_short_new (value)); + else + ok = FALSE; + } + break; + default: + ok = FALSE; + } + } + } + if (!ok) + { + log_error_ (dis, _("Invalid argument: %s"), arg); + } + + return ok; +} + +gboolean +cmd_scmp_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gboolean ok = (strlen (arg) == 1); + if (ok) switch (arg[0]) + { + case 'L': + mix_vm_set_cmpflag (dis->vm, mix_LESS); + break; + case 'E': + mix_vm_set_cmpflag (dis->vm, mix_EQ); + break; + case 'G': + mix_vm_set_cmpflag (dis->vm, mix_GREAT); + break; + default: + ok = FALSE; + } + if (!ok) + { + log_error_ (dis, _("Invalid argument: %s"), arg); + } + + return ok; +} + +gboolean +cmd_sover_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gboolean ok = (strlen (arg) == 1); + if (ok) switch (arg[0]) + { + case 'T': + mix_vm_set_overflow (dis->vm, TRUE); + break; + case 'F': + mix_vm_set_overflow (dis->vm, FALSE); + break; + default: + ok = FALSE; + } + if (!ok) + { + log_error_ (dis, _("Invalid argument: %s"), arg); + } + + return ok; +} + +gboolean +cmd_smem_ (mix_vm_cmd_dispatcher_t *dis, const gchar *carg) +{ + gboolean ok = (strlen (carg) > 2 && isdigit (carg[0])); + glong addr = -1; + glong value = 0; + int k = 0; + gchar *arg = NULL; + + if (ok) + { + arg = g_strdup (carg); + while (isdigit (arg[k])) k++; + ok = isspace (arg[k]); + if (ok) + { + arg[k++] = '\0'; + addr = atol (arg); + ok = addr < MIX_VM_CELL_NO; + } + if (ok) + { + while (isspace (arg[k])) k++; + value = atol (arg + k); + if ( arg[k] == '+' || arg[k] == '-' ) k++; + while (isdigit (arg[k])) k++; + ok = arg[k] == '\0'; + } + } + + if (ok) + mix_vm_set_addr_contents (dis->vm, mix_short_new (addr), + mix_word_new (value)); + else + { + log_error_ (dis, _("Invalid argument: %s"), arg); + } + if (arg) g_free (arg); + + return ok; +} + +gboolean +cmd_ssym_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gboolean result = FALSE; + if (arg == NULL || strlen(arg) == 0) + { + log_error_ (dis, _("Missing arguments")); + } + else + { + gchar *a = g_strdup (arg); + gchar *s = strtok (a, " \t"); + gchar *w = strtok (NULL, " \t"); + if (w != NULL && strtok (NULL, " \t") == NULL) + { + cmd_weval_ (dis, w); + if (mix_eval_last_error (dis->eval) == MIX_EVAL_OK) { + mix_eval_set_symbol (dis->eval, s, mix_eval_value (dis->eval)); + result = TRUE; + } + } + else + { + log_error_ (dis, _("Wrong argument number")); + } + g_free (a); + } + return result; +} + +gboolean +cmd_sbp_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + glong lineno; + glong k = 0; + while (isdigit (arg[k])) k++; + if (arg[k] != '\0') + { + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + lineno = atol (arg); + switch (k = mix_vm_set_breakpoint (dis->vm, lineno)) + { + case MIX_VM_BP_INV_LINE: + log_error_ (dis, _("Line number %ld too high"), lineno); + break; + case MIX_VM_BP_ERROR: + log_error_ (dis, _("Could not set breakpoint: internal error")); + break; + case MIX_VM_BP_NDEBUG: + log_error_ (dis, _("Could not set breakpoint: no debug info available"), + dis->err); + break; + default: + if (wants_logs_ (dis)) + log_message_ (dis, _("Breakpoint set at line %ld"), k); + return TRUE; + } + return FALSE; +} + +gboolean +cmd_sbpa_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + glong address; + glong k = 0; + while (isdigit (arg[k])) k++; + if (arg[k] != '\0') + { + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + address = atol (arg); + switch (mix_vm_set_breakpoint_address (dis->vm, address)) + { + case MIX_VM_BP_INV_ADDRESS: + log_error_ (dis, _("Invalid address %ld"), address); + break; + case MIX_VM_BP_ERROR: + log_error_ (dis, _("Could not set breakpoint: internal error")); + break; + default: + if (wants_logs_ (dis)) + log_message_ (dis, _("Breakpoint set at address %ld"), address); + return TRUE; + } + return FALSE; +} + +gboolean +cmd_cbp_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + glong lineno; + int k = 0; + while (isdigit (arg[k])) k++; + if (arg[k] != '\0') + { + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + lineno = atol (arg); + switch (mix_vm_clear_breakpoint (dis->vm, lineno)) + { + case MIX_VM_BP_INV_LINE: + log_error_ (dis, _("No breakpoint set at line %ld"), lineno); + break; + case MIX_VM_BP_ERROR: + log_error_ (dis, _("Could not set breakpoint: internal error")); + break; + case MIX_VM_BP_NDEBUG: + log_error_ (dis, _("No debug info available")); + break; + case MIX_VM_BP_OK: + if (wants_logs_ (dis)) + log_message_ (dis, _("Breakpoint cleared at line %ld"), lineno); + return TRUE; + default: + g_assert_not_reached (); + break; + } + return FALSE; +} + +gboolean +cmd_cbpa_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + glong address; + glong k = 0; + while (isdigit (arg[k])) k++; + if (arg[k] != '\0') + { + log_error_ (dis, _("Invalid argument: %s"), arg); + return FALSE; + } + address = atol (arg); + switch (mix_vm_clear_breakpoint_address (dis->vm, address)) + { + case MIX_VM_BP_INV_ADDRESS: + log_error_ (dis, _("Invalid address %ld"), address); + break; + case MIX_VM_BP_ERROR: + log_error_ (dis, _("Could not clear breakpoint: internal error")); + break; + default: + if (wants_logs_ (dis)) + log_message_ (dis, _("Breakpoint cleared at address %ld"), address); + return TRUE; + } + return FALSE; +} + + +gboolean +cmd_cabp_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (strlen (arg) != 0) + { + log_error_ (dis, _("Unexpected argument: %s"), arg); + return FALSE; + } + mix_vm_clear_all_breakpoints (dis->vm); + return TRUE; +} + +gboolean +cmd_weval_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if ( strlen (arg) == 0 ) + { + log_error_ (dis, _("Missing expression")); + return FALSE; + } + + if (mix_eval_expression_with_loc (dis->eval, arg, + mix_vm_get_prog_count (dis->vm)) == + MIX_EVAL_OK) + { + mix_word_print_to_file (mix_eval_value (dis->eval), NULL, dis->out); + putc ('\n', dis->out); + return TRUE; + } + else + { + gint pos = mix_eval_last_error_pos (dis->eval); + gint k, len = strlen (arg); + g_assert(pos > -1 && pos <= len); + for (k = 0; k<pos; ++k) fputc (arg[k], dis->err); + fputc ('\n', dis->err); + for (k = 0; k<pos; ++k) fputc (' ', dis->err); + for (k = pos; k < len; ++k) fputc (arg[k], dis->err); + fprintf (dis->err, _("\nEvaluation error: %s\n"), + mix_eval_last_error_string (dis->eval)); + return FALSE; + } +} + +gboolean +cmd_w2d_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if ( strlen (arg) == 0 ) + { + log_error_ (dis, _("Missing expression")); + return FALSE; + } + else + { + gchar *cp = g_strdup (arg), *a = cp; + mix_byte_t bytes[5] = {0, 0, 0, 0, 0}; + gchar *b; + guint k = 0; + gboolean is_n = (a[0] == '-'), success = TRUE; + if (a[0] == '+' || a[0] == '-') ++a; + b = strtok (a, " \t"); + while (b != NULL && k < 5) + { + if (strlen (b) != 2 || !isdigit(b[0]) || !isdigit(b[1])) + { + log_error_ (dis, _("Incorrect byte specification: %s"), b); + success = FALSE; + b = NULL; + } + else + { + bytes[k++] = mix_byte_new (atoi (b)); + b = strtok (NULL, " \t"); + } + } + if (success) + { + if (strtok (NULL, "\t") != NULL) + { + log_error_ (dis, + _("The expression %s does not fit in a word"), arg); + success = FALSE; + } + else + { + mix_word_t w = mix_bytes_to_word (bytes, k); + fprintf (dis->out, "%s%ld\n", is_n? "-":"+", + mix_word_magnitude (w)); + } + } + g_free (cp); + + return success; + } +} + +gboolean +cmd_strace_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + static const gchar *ON = "on"; + static const gchar *OFF = "off"; + if (!arg || !strlen (arg)) + { + log_error_ (dis, _("Missing argument")); + } + else if (!strcmp (arg, ON)) + { + dis->trace = TRUE; + if (dis->config) mix_config_update (dis->config, TRACING_KEY_, ON); + } + else if (!strcmp (arg, OFF)) + { + dis->trace = FALSE; + if (dis->config) mix_config_update (dis->config, TRACING_KEY_, OFF); + } + else + log_error_ (dis, _("Wrong argument: "), arg); + return TRUE; +} + +gboolean +cmd_stime_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + static const gchar *ON = "on"; + static const gchar *OFF = "off"; + if (!arg || !strlen (arg)) + { + log_error_ (dis, _("Missing argument")); + } + else if (!strcmp (arg, ON)) + { + dis->printtime = TRUE; + if (dis->config) mix_config_update (dis->config, TIMING_KEY_, ON); + } + else if (!strcmp (arg, OFF)) + { + dis->printtime = FALSE; + if (dis->config) mix_config_update (dis->config, TIMING_KEY_, OFF); + } + else + log_error_ (dis, _("Wrong argument: "), arg); + return TRUE; +} + +gboolean +cmd_ptime_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + print_time_ (dis); + return TRUE; +} + +gboolean +cmd_pedit_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + const gchar *ed = mix_vm_cmd_dispatcher_get_editor (dis); + if (dis) + fprintf (dis->out, _("Edit command: %s\n"), ed); + else + fprintf (dis->out, _("Edit command not set (use sedit)\n")); + return TRUE; +} + +gboolean +cmd_sedit_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (!arg || !strlen (arg)) + { + log_error_ (dis, _("Missing argument")); + return FALSE; + } + mix_vm_cmd_dispatcher_set_editor (dis, arg); + return TRUE; +} + +gboolean +cmd_pasm_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + const gchar *ed = mix_vm_cmd_dispatcher_get_assembler (dis); + if (dis) + fprintf (dis->out, _("Compile command: %s\n"), ed); + else + fprintf (dis->out, _("Compile command not set (use sasm)\n")); + return TRUE; +} + +gboolean +cmd_sasm_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (!arg || !strlen (arg)) + { + log_error_ (dis, _("Missing argument")); + return FALSE; + } + mix_vm_cmd_dispatcher_set_assembler (dis, arg); + return TRUE; +} + +gboolean +cmd_sddir_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (!arg || !strlen (arg)) log_error_ (dis, _("Missing argument")); + else if (mix_device_set_dir (arg) && dis->config) + mix_config_set_devices_dir (dis->config, arg); + return TRUE; +} + +gboolean +cmd_pddir_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + fprintf (dis->out, _("Device directory: %s\n"), mix_device_get_dir ()); + return TRUE; +} + +static const gint INVALID_REG_ = -2; + +static mix_predicate_type_t +get_reg_pred_ (const gchar *arg) +{ + mix_predicate_type_t pred = INVALID_REG_; + + switch (*arg) + { + case 'A': + pred = MIX_PRED_REG_A; + break; + case 'X': + pred = MIX_PRED_REG_X; + break; + case 'J': + pred = MIX_PRED_REG_J; + break; + case 'I': + { + if ( strlen (arg) == 2 ) + { + int i = arg[1] - '1'; + if (i >= 0 && i < 6) + pred = MIX_PRED_REG_I1 - 1 + i; + } + } + break; + default: + break; + } + return pred; +} + +gboolean +cmd_sbpr_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + mix_predicate_type_t pred = get_reg_pred_ (arg); + if (pred != INVALID_REG_) + { + mix_vm_set_conditional_breakpoint (dis->vm, dis->preds[pred]); + if (wants_logs_ (dis)) + log_message_ (dis, + _("Conditional breakpoint on r%s change set"), arg); + return TRUE; + } + else + { + log_error_ (dis, _("Invalid argument %s"), arg); + return FALSE; + } +} + +gboolean +cmd_cbpr_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + mix_predicate_type_t pred = get_reg_pred_ (arg); + if (pred != INVALID_REG_) + { + if (mix_vm_clear_conditional_breakpoint (dis->vm, dis->preds[pred])) + { + if (wants_logs_(dis)) + log_message_ (dis, + _("Conditional breakpoint on r%s change removed"), + arg); + } + else + log_error_ (dis, _("No breakpoint set on r%s change"), arg); + return TRUE; + } + else + { + log_error_ (dis, _("Invalid argument %s"), arg); + return FALSE; + } +} + +gboolean +cmd_sbpm_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gint add = atoi (arg); + gpointer key, value; + if (add < 0 || add > MIX_VM_CELL_NO) + { + log_error_ (dis, _("Invalid memory address: %s"), arg); + return FALSE; + } + if (!g_hash_table_lookup_extended (dis->mem_preds, GINT_TO_POINTER (add), + &key, &value)) + { + mix_predicate_t *new_pred = mix_predicate_new (MIX_PRED_MEM); + mix_predicate_set_mem_address (new_pred, add); + g_hash_table_insert (dis->mem_preds, + GINT_TO_POINTER (add), (gpointer)new_pred); + mix_vm_set_conditional_breakpoint (dis->vm, new_pred); + } + if (wants_logs_ (dis)) + log_message_ (dis, _("Conditional breakpoint on mem cell no. %d set"), + add); + return TRUE; +} + +gboolean +cmd_cbpm_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gint add = atoi (arg); + gpointer key, value; + if (add < 0 || add > MIX_VM_CELL_NO) + { + log_error_ (dis, _("Invalid memory address: %s"), arg); + return FALSE; + } + if (g_hash_table_lookup_extended (dis->mem_preds, GINT_TO_POINTER (add), + &key, &value)) + { + g_hash_table_remove (dis->mem_preds, key); + mix_vm_clear_conditional_breakpoint (dis->vm, (mix_predicate_t *)value); + mix_predicate_delete ((mix_predicate_t *)value); + if (wants_logs_ (dis)) + log_message_ (dis, + _("Conditional breakpoint on mem cell no. %d removed"), + add); + } + else + { + log_error_ (dis, _("No conditional breakpoint set at address %d"), + add); + } + return TRUE; +} + +gboolean +cmd_sbpo_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg && strlen (arg)) + log_error_ (dis, _("Unexpected argument: %s"), arg); + else + { + mix_vm_set_conditional_breakpoint (dis->vm, dis->preds[MIX_PRED_OVER]); + if (wants_logs_ (dis)) + log_message_ (dis, + _("Conditional breakpoint on overflow toggled set")); + } + return TRUE; +} + +gboolean +cmd_cbpo_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg && strlen (arg)) + log_error_ (dis, _("Unexpected argument: %s"), arg); + else + { + if (mix_vm_clear_conditional_breakpoint + (dis->vm, dis->preds[MIX_PRED_OVER])) + { + if (wants_logs_ (dis)) + log_message_ + (dis, _("Conditional breakpoint on overflow toggled removed.")); + } + else + log_error_ (dis, _("No breakpoint set on overflow toggle")); + } + return TRUE; +} + +gboolean +cmd_sbpc_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg && strlen (arg)) + log_error_ (dis, _("Unexpected argument: %s"), arg); + else + { + mix_vm_set_conditional_breakpoint (dis->vm, dis->preds[MIX_PRED_CMP]); + if (wants_logs_ (dis)) + log_message_ + (dis, _("Conditional breakpoint on comparison flag changed set")); + } + return TRUE; +} + +gboolean +cmd_cbpc_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + if (arg && strlen (arg)) + log_error_ (dis, _("Unexpected argument: %s"), arg); + else + { + if (mix_vm_clear_conditional_breakpoint + (dis->vm, dis->preds[MIX_PRED_CMP])) + { + if (wants_logs_ (dis)) + log_message_ + (dis, + _("Conditional breakpoint on comparison flag changed removed.")); + } + else + log_error_ (dis, _("No breakpoint set on comparison flag change")); + } + return TRUE; +} + +gboolean +cmd_pbt_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + enum {SIZE = 256}; + static gchar BUFFER[SIZE]; + gint no = atoi (arg); + gint k = 0, address; + guint line; + const mix_src_file_t *file = mix_vm_get_src_file (dis->vm); + char *name = + file ? g_path_get_basename (mix_src_file_get_path (file)) : NULL; + + const GSList *add = mix_vm_get_backtrace (dis->vm); + while (add && (no == 0 || k < no)) + { + BUFFER[0] = '\0'; + address = GPOINTER_TO_INT (add->data); + line = mix_vm_get_address_lineno (dis->vm, address); + if (line && file) + { + int j = 0; + g_snprintf (BUFFER, SIZE, "%s", mix_src_file_get_line (file, line)); + while (!isspace (BUFFER[j])) j++; + BUFFER[j] = '\0'; + } + if (strlen (BUFFER) == 0) g_snprintf (BUFFER, SIZE, "%d", address); + fprintf (dis->out, "#%d\t%s\tin %s%s:%d\n", k, BUFFER, name, + MIX_SRC_DEFEXT, line); + ++k; + add = add->next; + } + return TRUE; +} + +gboolean +cmd_slog_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + static const gchar *ON = "on"; + static const gchar *OFF = "off"; + if (arg && !strcmp (arg, ON)) + { + dis->log_msg = TRUE; + if (dis->config) mix_config_update (dis->config, LOGGING_KEY_, ON); + } + else if (arg && !strcmp (arg, OFF)) + { + dis->log_msg = FALSE; + if (dis->config) mix_config_update (dis->config, LOGGING_KEY_, OFF); + } + else + log_error_ (dis, _("Wrong argument: "), arg); + return TRUE; +} + +gboolean +cmd_pprog_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + const gchar *path = mix_vm_cmd_dispatcher_get_program_path (dis); + fprintf (dis->out, path? path : _("No program currently loaded")); + fprintf (dis->out, "\n"); + return (path != NULL); +} + +gboolean +cmd_psrc_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + const gchar *path = mix_vm_cmd_dispatcher_get_src_file_path (dis); + fprintf (dis->out, path? path : _("No program currently loaded\n")); + fprintf (dis->out, "\n"); + return (path != NULL); +} + +gboolean +cmd_pline_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + gulong line = 0; + const gchar *txt; + + if (arg && strlen (arg)) line = atoi (arg); + + if (line < 0) + { + log_error_ (dis, _("Invalid argument")); + return FALSE; + } + + if (line == 0) + line = mix_vm_cmd_dispatcher_get_src_file_lineno (dis); + + if (line == 0) + txt = "No such line (debug info not available)\n"; + else + txt = mix_vm_cmd_dispatcher_get_src_file_line (dis, line, FALSE); + + if (txt == NULL || strlen (txt) == 0) txt = "No such line\n"; + + fprintf (dis->out, "Line %ld: %s\n", line, txt); + + return TRUE; +} + +gboolean +cmd_pstat_ (mix_vm_cmd_dispatcher_t *dis, const gchar *arg) +{ + static const gchar *MSGS[MIX_VM_EMPTY + 1] = { + N_("Error loading or executing file"), + N_("Execution stopped: breakpoint encountered"), + N_("Execution stopped: conditional breakpoint encountered"), + N_("Program successfully terminated"), + N_("Execution stopped"), + N_("Program successfully loaded"), + N_("No program loaded") + }; + mix_vm_status_t status = + mix_vm_get_run_status (mix_vm_cmd_dispatcher_get_vm (dis)); + fprintf (dis->out, "VM status: %s\n", MSGS[status]); + return TRUE; +} |