diff --git a/scp.c b/scp.c
index 22267994..cd1b3392 100644
--- a/scp.c
+++ b/scp.c
@@ -474,18 +474,13 @@ typedef enum {
     SW_NUMBER           /* Numeric Value */
     } SWITCH_PARSE;
 SWITCH_PARSE get_switches (const char *cptr, int32 *sw_val, int32 *sw_number);
-t_stat get_aval (t_addr addr, DEVICE *dptr, UNIT *uptr);
-t_value get_rval (REG *rptr, uint32 idx);
 void put_rval (REG *rptr, uint32 idx, t_value val);
 void fprint_help (FILE *st);
 void fprint_stopped (FILE *st, t_stat r);
 void fprint_capac (FILE *st, DEVICE *dptr, UNIT *uptr);
 void fprint_sep (FILE *st, int32 *tokens);
-char *read_line (char *ptr, int32 size, FILE *stream);
-char *read_line_p (const char *prompt, char *ptr, int32 size, FILE *stream);
 REG *find_reg_glob (CONST char *ptr, CONST char **optr, DEVICE **gdptr);
 REG *find_reg_glob_reason (CONST char *cptr, CONST char **optr, DEVICE **gdptr, t_stat *stat);
-char *sim_trim_endspc (char *cptr);
 
 /* Forward references */