diff --git a/examples/sample.source.PKIX1/Makefile b/examples/sample.source.PKIX1/Makefile
index de54195..b0fde7f 100644
--- a/examples/sample.source.PKIX1/Makefile
+++ b/examples/sample.source.PKIX1/Makefile
@@ -369,7 +369,7 @@
 	../../asn1c/asn1c -S ../../skeletons ../rfc3280-PKIX1Explicit88.asn1 ../rfc3280-PKIX1Implicit88.asn1
 
 
-Certificate.c: ../sample.makefile.regen
+Certificate.c: ../sample.makefile.regen ../rfc3280-*.asn1
 	make regen-makefile
 	@touch Certificate.c
 	make
@@ -385,27 +385,58 @@
 	@if test -f ./sample-Certificate-1.[db]er ; then \
 	for f in ./sample-Certificate-*.[db]er; do \
 	echo "Recoding $$f into XER and back..."; \
-	./${TARGET} -iber -oxer $$f > ./.tmp.1.$$ || exit 2; \
-	./${TARGET} -ixer -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
-	diff ./.tmp.1.$$ ./.tmp.2.$$ || exit 2; \
-	rm -f ./.tmp.[12].$$; \
+	./${TARGET} -iber -oxer -b 1 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer -b 17 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer -b 33 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer -b 980 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -ixer -oxer ./.tmp.1.$$$$ > ./.tmp.2.$$$$ || exit 2; \
+	diff ./.tmp.1.$$$$ ./.tmp.2.$$$$ || exit 2; \
+	rm -f ./.tmp.[12].$$$$; \
 	done; fi
 	@if test -f ./sample-Certificate-1.xer ; then \
 	for f in ./sample-Certificate-*.xer; do \
 	echo "Recoding $$f into DER and back..."; \
-	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$ || exit 2; \
-	./${TARGET} -iber -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
-	diff $$f ./.tmp.2.$$ || exit 2; \
-	rm -f ./.tmp.[12].$$; \
+	./${TARGET} -ixer -oder -b 1 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -ixer -oder -b 17 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -ixer -oder -b 33 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -ixer -oder -b 980 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -ixer -oder $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$$$ > ./.tmp.2.$$$$ || exit 2; \
+	diff $$f ./.tmp.2.$$$$ || exit 2; \
+	rm -f ./.tmp.[12].$$$$; \
 	done; fi
 	@if test -f ./sample-Certificate-1.per ; then \
-	for f in ./sample-Certificate-*.per; do \
+	for f in ./sample-Certificate-[1-9].per; do \
 	echo "Recoding $$f into DER into XER and back..."; \
-	./${TARGET} -iper -oder $$f > ./.tmp.1.$$ || exit 2; \
-	./${TARGET} -ider -oxer ./.tmp.1.$$ > ./.tmp.2.$$ || exit 2; \
-	./${TARGET} -ixer -oper ./.tmp.2.$$ > ./.tmp.1.$$ || exit 2; \
-	diff $$f ./.tmp.1.$$ || exit 2; \
-	rm -f ./.tmp.[12].$$; \
+	./${TARGET} -iper -oxer -b 1 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iper -oxer -b 17 $$f > ./.tmp.2.$$$$ || exit 2; \
+	./${TARGET} -iper -oxer -b 33 $$f > ./.tmp.3.$$$$ || exit 2; \
+	./${TARGET} -iper -oxer -b 980 $$f > ./.tmp.4.$$$$ || exit 2; \
+	diff ./.tmp.1.$$$$ ./.tmp.2.$$$$ || exit 2; \
+	diff ./.tmp.2.$$$$ ./.tmp.3.$$$$ || exit 2; \
+	diff ./.tmp.3.$$$$ ./.tmp.4.$$$$ || exit 2; \
+	./${TARGET} -iper -oder $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$$$ > ./.tmp.2.$$$$ || exit 2; \
+	./${TARGET} -ixer -oder ./.tmp.2.$$$$ > ./.tmp.3.$$$$ || exit 2; \
+	diff ./.tmp.1.$$$$ ./.tmp.3.$$$$ || exit 2; \
+	rm -f ./.tmp.[1234].$$$$; \
+	done; fi
+	@if test -f ./sample-Certificate-1-padded.per ; then \
+	for f in ./sample-Certificate-[1-9]-padded.per; do \
+	echo "Recoding byte-padded $$f into DER into XER and back..."; \
+	./${TARGET} -per-padded -iper -oxer -b 1 $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -per-padded -iper -oxer -b 17 $$f > ./.tmp.2.$$$$ || exit 2; \
+	./${TARGET} -per-padded -iper -oxer -b 33 $$f > ./.tmp.3.$$$$ || exit 2; \
+	./${TARGET} -per-padded -iper -oxer -b 980 $$f > ./.tmp.4.$$$$ || exit 2; \
+	diff ./.tmp.1.$$$$ ./.tmp.2.$$$$ || exit 2; \
+	diff ./.tmp.2.$$$$ ./.tmp.3.$$$$ || exit 2; \
+	diff ./.tmp.3.$$$$ ./.tmp.4.$$$$ || exit 2; \
+	./${TARGET} -per-padded -iper -oder $$f > ./.tmp.1.$$$$ || exit 2; \
+	./${TARGET} -iber -oxer ./.tmp.1.$$$$ > ./.tmp.2.$$$$ || exit 2; \
+	./${TARGET} -ixer -oper ./.tmp.2.$$$$ > ./.tmp.1.$$$$ || exit 2; \
+	diff $$f ./.tmp.1.$$$$ || exit 2; \
+	rm -f ./.tmp.[1234].$$$$; \
 	done; fi
 	@echo ================
 	@echo All tests passed