--- a/target-utils/libcommon/Makefile	Sat Jun 01 22:46:54 2019 +0000
+++ b/target-utils/libcommon/Makefile	Sun Jun 02 23:59:12 2019 +0000
@@ -4,9 +4,10 @@
 AR=	arm-elf-ar
 RANLIB=	arm-elf-ranlib
 
-OBJS=	abbcmd.o buzzer.o cmdentry.o dispatch.o hexarg.o parseargs.o uartsel.o \
-	cmd_baud_switch.o cmd_dieid.o cmd_jump.o cmd_r8.o cmd_r16.o cmd_r32.o \
-	cmd_w8.o cmd_w16.o cmd_w32.o cmd_memdump_human.o cmd_memdump_machine.o
+OBJS=	abbcmd.o buzzer.o cmdentry.o defgetchar.o dispatch.o hexarg.o \
+	parseargs.o uartsel.o cmd_baud_switch.o cmd_dieid.o cmd_jump.o cmd_r8.o\
+	cmd_r16.o cmd_r32.o cmd_w8.o cmd_w16.o cmd_w32.o cmd_memdump_human.o \
+	cmd_memdump_machine.o
 
 all:	libcommon.a
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libcommon/defgetchar.c	Sun Jun 02 23:59:12 2019 +0000
@@ -0,0 +1,22 @@
+/*
+ * The interactive command entry (editing) function in libcommon
+ * will call mygetchar() for its character input.  It is supposed
+ * to be a blocking wait for input, but in some programs other
+ * processing can be done while waiting - for example, check for
+ * keypad presses as well.  This is the basic version which waits
+ * for serial input and nothing else - specific programs can
+ * override it if necessary, but this library version is the default.
+ */
+
+extern int serial_in_poll();
+
+int
+mygetchar()
+{
+	register int c;
+
+	do
+		c = serial_in_poll();
+	while (c < 0);
+	return c;
+}