--- a/frbl/reconst/serial.c	Fri Mar 06 07:08:58 2020 +0000
+++ b/frbl/reconst/serial.c	Fri Mar 06 07:42:09 2020 +0000
@@ -40,3 +40,51 @@
 		bss_0xc = 6;
 	return retval;
 }
+
+static SYS_UWORD32
+static_func_0x7a(SYS_UWORD8 arg1, SYS_UWORD32 *arg2)
+{
+	SYS_UWORD32 retval = 1;
+
+	if (!bss_7) {
+		if (arg1 == 'S') {
+			bss_7 = 1;
+		} else {
+			*arg2 = 1;
+			retval = 0;
+		}
+	} else {
+		bss_7 = 0;
+		if (arg1 == '0') {
+			if (bss_4) {
+				*arg2 = 1;
+				bss_4 = 0;
+				retval = 0;
+			} else {
+				bss_0xc = 2;
+				bss_8 = 0;
+			}
+		} else if (arg1 == '3') {
+			if (!bss_4) {
+				*arg2 = 1;
+				retval = 0;
+			} else {
+				bss_0xc = 4;
+				bss_8 = 0;
+			}
+		} else if (arg1 == '7') {
+			if (!bss_4) {
+				*arg2 = 1;
+				retval = 0;
+			} else {
+				bss_0xc = 3;
+				bss_8 = 0;
+			}
+		} else {
+			*arg2 = 1;
+			bss_4 = 0;
+			retval = 0;
+		}
+	}
+	return retval;
+}