Reduce static RAM usage

[z180-stamp.git] / avr / cmd_loadcpm3.c

diff --git a/avr/cmd_loadcpm3.c b/avr/cmd_loadcpm3.c
index 39e3278eee9def269fd31e3892ee5438a70c0ae6..6ccb3f9597245f05081747187b59ebf9c837da26 100644 (file)
--- a/avr/cmd_loadcpm3.c
+++ b/avr/cmd_loadcpm3.c
@@ -71,7 +71,7 @@ command_ret_t do_loadcpm3(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char *
        uint32_t banked_base;
        char *fname;
        FIL File;
-       char default_fname[] = CONFIG_CPM3_SYSFILE;
+       char default_fname[strlen_P(PSTR(CONFIG_CPM3_SYSFILE)) + 1];
        unsigned int br;                                        /* bytes read */
        uint8_t buffer[RS];
        int res;
@@ -90,11 +90,13 @@ command_ret_t do_loadcpm3(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char *
                common_base = eval_arg(argv[2], NULL);
 
        fname = getenv_str(PSTR(ENV_CPM3_SYSFILE));
+       if (fname == NULL || *fname == '\0') {
+               strcpy_P(default_fname, PSTR(CONFIG_CPM3_SYSFILE));
+               fname = default_fname;
+       }
        if (argc > 1) {
                fname = argv[1];
        }
-       if (fname == NULL || *fname == '\0')
-               fname = default_fname;
 
        res = f_open(&File, fname, FA_READ );
        if (res) {