Add option to automatically run and stop CLI emulator

[emu8051.git] / src / options.c

diff --git a/src/options.c b/src/options.c
index 39efd57..fb78714 100644 (file)
--- a/src/options.c
+++ b/src/options.c
@@ -48,6 +48,7 @@ static struct argp_option argp_options[] = {
        {"iram",  'i', "size",  0,  "Set internal ram size" },
        {"pram",  'p', "size",  0,  "Set program memory size" },
        {"xram",  'x', "size",  0,  "Set external ram size (default is 1024)" },
+       {"stop",  's', "addr",  0,  "Automatically run program and stop at address" },
        { 0 }
 };
 
@@ -107,6 +108,19 @@ decode_memory_size(char *arg, struct argp_state *state, int memid)
        }
 }
 
+static void
+decode_address(char *arg, struct argp_state *state, uint16_t *dest)
+{
+       char *endptr;
+
+       *dest = strtol(arg, &endptr, 0);
+
+       if (*endptr != '\0') {
+               log_err("Invalid address");
+               argp_usage(state);
+       }
+}
+
 /* Parse a single option. */
 static error_t
 parse_opt(int key, char *arg, struct argp_state *state)
@@ -121,6 +135,9 @@ parse_opt(int key, char *arg, struct argp_state *state)
        case 'p':
                decode_memory_size(arg, state, PGM_MEM_ID);
                break;
+       case 's':
+               decode_address(arg, state, &options.stop_address);
+               break;
        case 'x':
                decode_memory_size(arg, state, EXT_MEM_ID);
                break;
@@ -161,6 +178,7 @@ parse_command_line_options(int argc, char *argv[])
        options.iram_size = INT_MEM_MAX_SIZE;
        options.xram_size = EXT_MEM_DEFAULT_SIZE;
        options.log = LOG_LEVEL_ERR;
+       options.stop_address = 0; /* 0 means stop address is disabled. */
 
        /* Parse our arguments. */
        argp_parse(&argp, argc, argv, 0, 0, NULL);