Allow EM command to be specified without arguments

In this case, program will run from the current PC address until a breakpoint
is reached.

diff --git a/src/cli/emuconsole.c b/src/cli/emuconsole.c
index 1c88935..a68acb5 100644 (file)
--- a/src/cli/emuconsole.c
+++ b/src/cli/emuconsole.c
@@ -260,7 +260,7 @@ console_main(void)
                "  Dump Internal Data Memory... DI [address] [size]",
                "  Dump Program Memory......... DP [address] [size]",
                "  Display Registers content... DR",
-               "  Execute..................... EM [address"
+               "  Execute (Run)............... EM [address"
                " [number of instructions]]",
                "  Help........................ H or ?",
                "  Modify External Data Memory. ME address value",
@@ -268,7 +268,7 @@ console_main(void)
                "  Modify Program Memory....... MP address value",
                "  Modify Register............. MR register value",
                "  Quit Emulator............... Q",
-               "  Trace mode.................. T [address]",
+               "  Trace mode (step)........... T [address]",
                "  Unassemble.................. U [address]"
                " [number of instructions]",
                "  Reset processor............. Z", 0 };
@@ -277,7 +277,7 @@ console_main(void)
 
        if (options.stop_address != 0) {
                /* Automatically run program and stop at specified address. */
-               console_exec("0000", NULL);
+               console_exec("PC", NULL);
                console_show_registers();
                QuitRequest = 1;
        } else {
@@ -390,7 +390,17 @@ console_main(void)
                                goto syntax_error;
                        break;
                case 'E':
-                       if (STREQ(Command, "EM"))
+                       if (STREQ(Command, "EM") &&
+                           (strlen(Parameter1) == 0) &&
+                           (strlen(Parameter2) == 0))
+                               console_exec("PC", NULL);
+                       else if (STREQ(Command, "EM") &&
+                                (strlen(Parameter1) != 0) &&
+                                (strlen(Parameter2) == 0))
+                               console_exec(Parameter1, NULL);
+                       else if (STREQ(Command, "EM") &&
+                                (strlen(Parameter1) != 0) &&
+                                (strlen(Parameter2) != 0))
                                console_exec(Parameter1, Parameter2);
                        else
                                goto syntax_error;