diff --git a/tests/110-param-3-OK.asn1.-P b/tests/110-param-3-OK.asn1.-P
index 3cb1058..9bd39a9 100644
--- a/tests/110-param-3-OK.asn1.-P
+++ b/tests/110-param-3-OK.asn1.-P
@@ -222,7 +222,9 @@
 	asn_MAP_field_enum2value_7,	/* N => "tag"; sorted by N */
 	3,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_field_tags_7[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/127-per-long-OK.asn1 b/tests/127-per-long-OK.asn1
index 61d89aa..ad1c500 100644
--- a/tests/127-per-long-OK.asn1
+++ b/tests/127-per-long-OK.asn1
@@ -13,7 +13,9 @@
 
 	T ::= SEQUENCE {
 		small32range	INTEGER (-2000000000..2000000000),
-		full32range	INTEGER (-2147483648..2147483647)
+		full32range	INTEGER (-2147483648..2147483647),
+		unsigned32	INTEGER (0..4294967295),
+		unsplit32	INTEGER (5..500|600..4294967290)
 	}
 
 END
diff --git a/tests/127-per-long-OK.asn1.-Pgen-PER b/tests/127-per-long-OK.asn1.-Pgen-PER
new file mode 100644
index 0000000..439468b
--- /dev/null
+++ b/tests/127-per-long-OK.asn1.-Pgen-PER
@@ -0,0 +1,507 @@
+
+/*** <<< INCLUDES [T] >>> ***/
+
+#include <NativeInteger.h>
+#include <constr_SEQUENCE.h>
+
+/*** <<< TYPE-DECLS [T] >>> ***/
+
+typedef struct T {
+	long	 small32range;
+	long	 full32range;
+	unsigned long	 unsigned32;
+	unsigned long	 unsplit32;
+	
+	/* Context for parsing across buffer boundaries */
+	asn_struct_ctx_t _asn_ctx;
+} T_t;
+
+/*** <<< FUNC-DECLS [T] >>> ***/
+
+/* extern asn_TYPE_descriptor_t asn_DEF_unsigned32_4;	// (Use -fall-defs-global to expose) */
+/* extern asn_TYPE_descriptor_t asn_DEF_unsplit32_5;	// (Use -fall-defs-global to expose) */
+extern asn_TYPE_descriptor_t asn_DEF_T;
+
+/*** <<< CODE [T] >>> ***/
+
+static int
+unsigned32_4_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	unsigned long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const unsigned long *)sptr;
+	
+	/* Constraint check succeeded */
+	return 0;
+}
+
+/*
+ * This type is implemented using NativeInteger,
+ * so here we adjust the DEF accordingly.
+ */
+static void
+unsigned32_4_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
+	if(!td->per_constraints)
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
+}
+
+static void
+unsigned32_4_free(asn_TYPE_descriptor_t *td,
+		void *struct_ptr, int contents_only) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	td->free_struct(td, struct_ptr, contents_only);
+}
+
+static int
+unsigned32_4_print(asn_TYPE_descriptor_t *td, const void *struct_ptr,
+		int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->print_struct(td, struct_ptr, ilevel, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsigned32_4_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const void *bufptr, size_t size, int tag_mode) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->ber_decoder(opt_codec_ctx, td, structure, bufptr, size, tag_mode);
+}
+
+static asn_enc_rval_t
+unsigned32_4_encode_der(asn_TYPE_descriptor_t *td,
+		void *structure, int tag_mode, ber_tlv_tag_t tag,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->der_encoder(td, structure, tag_mode, tag, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsigned32_4_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const char *opt_mname, const void *bufptr, size_t size) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->xer_decoder(opt_codec_ctx, td, structure, opt_mname, bufptr, size);
+}
+
+static asn_enc_rval_t
+unsigned32_4_encode_xer(asn_TYPE_descriptor_t *td, void *structure,
+		int ilevel, enum xer_encoder_flags_e flags,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->xer_encoder(td, structure, ilevel, flags, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsigned32_4_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints, void **structure, asn_per_data_t *per_data) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->uper_decoder(opt_codec_ctx, td, constraints, structure, per_data);
+}
+
+static asn_enc_rval_t
+unsigned32_4_encode_uper(asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints,
+		void *structure, asn_per_outp_t *per_out) {
+	unsigned32_4_inherit_TYPE_descriptor(td);
+	return td->uper_encoder(td, constraints, structure, per_out);
+}
+
+static int
+unsplit32_5_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	unsigned long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const unsigned long *)sptr;
+	
+	if(((value >= 5 && value <= 500) || (value >= 600 && value <= 4294967290))) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+/*
+ * This type is implemented using NativeInteger,
+ * so here we adjust the DEF accordingly.
+ */
+static void
+unsplit32_5_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
+	if(!td->per_constraints)
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
+}
+
+static void
+unsplit32_5_free(asn_TYPE_descriptor_t *td,
+		void *struct_ptr, int contents_only) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	td->free_struct(td, struct_ptr, contents_only);
+}
+
+static int
+unsplit32_5_print(asn_TYPE_descriptor_t *td, const void *struct_ptr,
+		int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->print_struct(td, struct_ptr, ilevel, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsplit32_5_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const void *bufptr, size_t size, int tag_mode) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->ber_decoder(opt_codec_ctx, td, structure, bufptr, size, tag_mode);
+}
+
+static asn_enc_rval_t
+unsplit32_5_encode_der(asn_TYPE_descriptor_t *td,
+		void *structure, int tag_mode, ber_tlv_tag_t tag,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->der_encoder(td, structure, tag_mode, tag, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsplit32_5_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const char *opt_mname, const void *bufptr, size_t size) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->xer_decoder(opt_codec_ctx, td, structure, opt_mname, bufptr, size);
+}
+
+static asn_enc_rval_t
+unsplit32_5_encode_xer(asn_TYPE_descriptor_t *td, void *structure,
+		int ilevel, enum xer_encoder_flags_e flags,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->xer_encoder(td, structure, ilevel, flags, cb, app_key);
+}
+
+static asn_dec_rval_t
+unsplit32_5_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints, void **structure, asn_per_data_t *per_data) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->uper_decoder(opt_codec_ctx, td, constraints, structure, per_data);
+}
+
+static asn_enc_rval_t
+unsplit32_5_encode_uper(asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints,
+		void *structure, asn_per_outp_t *per_out) {
+	unsplit32_5_inherit_TYPE_descriptor(td);
+	return td->uper_encoder(td, constraints, structure, per_out);
+}
+
+static int
+memb_small32range_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const long *)sptr;
+	
+	if((value >= -2000000000 && value <= 2000000000)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_full32range_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const long *)sptr;
+	
+	if((value >= (-2147483647L - 1) && value <= 2147483647)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_unsigned32_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	unsigned long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const unsigned long *)sptr;
+	
+	/* Constraint check succeeded */
+	return 0;
+}
+
+static int
+memb_unsplit32_constraint_1(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	unsigned long value;
+	
+	if(!sptr) {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const unsigned long *)sptr;
+	
+	if(((value >= 5 && value <= 500) || (value >= 600 && value <= 4294967290))) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		_ASN_CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+
+/*** <<< CTDEFS [T] >>> ***/
+
+static asn_per_constraints_t asn_PER_type_unsigned32_constr_4 = {
+	{ APC_CONSTRAINED,	 32, -1,  0,  4294967295 }	/* (0..4294967295) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_type_unsplit32_constr_5 = {
+	{ APC_CONSTRAINED,	 32, -1,  5,  4294967290 }	/* (5..4294967290) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_small32range_constr_2 = {
+	{ APC_CONSTRAINED,	 32, -1, -2000000000,  2000000000 }	/* (-2000000000..2000000000) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_full32range_constr_3 = {
+	{ APC_CONSTRAINED,	 32, -1, (-2147483647L - 1),  2147483647 }	/* (-2147483648..2147483647) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_unsigned32_constr_4 = {
+	{ APC_CONSTRAINED,	 32, -1,  0,  4294967295 }	/* (0..4294967295) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_unsplit32_constr_5 = {
+	{ APC_CONSTRAINED,	 32, -1,  5,  4294967290 }	/* (5..4294967290) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+
+/*** <<< STAT-DEFS [T] >>> ***/
+
+static asn_INTEGER_specifics_t asn_SPC_unsigned32_specs_4 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
+static ber_tlv_tag_t asn_DEF_unsigned32_tags_4[] = {
+	(ASN_TAG_CLASS_CONTEXT | (2 << 2)),
+	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
+};
+static /* Use -fall-defs-global to expose */
+asn_TYPE_descriptor_t asn_DEF_unsigned32_4 = {
+	"unsigned32",
+	"unsigned32",
+	unsigned32_4_free,
+	unsigned32_4_print,
+	unsigned32_4_constraint,
+	unsigned32_4_decode_ber,
+	unsigned32_4_encode_der,
+	unsigned32_4_decode_xer,
+	unsigned32_4_encode_xer,
+	unsigned32_4_decode_uper,
+	unsigned32_4_encode_uper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_unsigned32_tags_4,
+	sizeof(asn_DEF_unsigned32_tags_4)
+		/sizeof(asn_DEF_unsigned32_tags_4[0]) - 1, /* 1 */
+	asn_DEF_unsigned32_tags_4,	/* Same as above */
+	sizeof(asn_DEF_unsigned32_tags_4)
+		/sizeof(asn_DEF_unsigned32_tags_4[0]), /* 2 */
+	&asn_PER_type_unsigned32_constr_4,
+	0, 0,	/* No members */
+	&asn_SPC_unsigned32_specs_4	/* Additional specs */
+};
+
+static asn_INTEGER_specifics_t asn_SPC_unsplit32_specs_5 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
+static ber_tlv_tag_t asn_DEF_unsplit32_tags_5[] = {
+	(ASN_TAG_CLASS_CONTEXT | (3 << 2)),
+	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
+};
+static /* Use -fall-defs-global to expose */
+asn_TYPE_descriptor_t asn_DEF_unsplit32_5 = {
+	"unsplit32",
+	"unsplit32",
+	unsplit32_5_free,
+	unsplit32_5_print,
+	unsplit32_5_constraint,
+	unsplit32_5_decode_ber,
+	unsplit32_5_encode_der,
+	unsplit32_5_decode_xer,
+	unsplit32_5_encode_xer,
+	unsplit32_5_decode_uper,
+	unsplit32_5_encode_uper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_unsplit32_tags_5,
+	sizeof(asn_DEF_unsplit32_tags_5)
+		/sizeof(asn_DEF_unsplit32_tags_5[0]) - 1, /* 1 */
+	asn_DEF_unsplit32_tags_5,	/* Same as above */
+	sizeof(asn_DEF_unsplit32_tags_5)
+		/sizeof(asn_DEF_unsplit32_tags_5[0]), /* 2 */
+	&asn_PER_type_unsplit32_constr_5,
+	0, 0,	/* No members */
+	&asn_SPC_unsplit32_specs_5	/* Additional specs */
+};
+
+static asn_TYPE_member_t asn_MBR_T_1[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct T, small32range),
+		.tag = (ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+		.tag_mode = -1,	/* IMPLICIT tag at current level */
+		.type = &asn_DEF_NativeInteger,
+		.memb_constraints = memb_small32range_constraint_1,
+		.per_constraints = &asn_PER_memb_small32range_constr_2,
+		.default_value = 0,
+		.name = "small32range"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct T, full32range),
+		.tag = (ASN_TAG_CLASS_CONTEXT | (1 << 2)),
+		.tag_mode = -1,	/* IMPLICIT tag at current level */
+		.type = &asn_DEF_NativeInteger,
+		.memb_constraints = memb_full32range_constraint_1,
+		.per_constraints = &asn_PER_memb_full32range_constr_3,
+		.default_value = 0,
+		.name = "full32range"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct T, unsigned32),
+		.tag = (ASN_TAG_CLASS_CONTEXT | (2 << 2)),
+		.tag_mode = -1,	/* IMPLICIT tag at current level */
+		.type = &asn_DEF_unsigned32_4,
+		.memb_constraints = memb_unsigned32_constraint_1,
+		.per_constraints = &asn_PER_memb_unsigned32_constr_4,
+		.default_value = 0,
+		.name = "unsigned32"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct T, unsplit32),
+		.tag = (ASN_TAG_CLASS_CONTEXT | (3 << 2)),
+		.tag_mode = -1,	/* IMPLICIT tag at current level */
+		.type = &asn_DEF_unsplit32_5,
+		.memb_constraints = memb_unsplit32_constraint_1,
+		.per_constraints = &asn_PER_memb_unsplit32_constr_5,
+		.default_value = 0,
+		.name = "unsplit32"
+		},
+};
+static ber_tlv_tag_t asn_DEF_T_tags_1[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static asn_TYPE_tag2member_t asn_MAP_T_tag2el_1[] = {
+    { (ASN_TAG_CLASS_CONTEXT | (0 << 2)), 0, 0, 0 }, /* small32range at 15 */
+    { (ASN_TAG_CLASS_CONTEXT | (1 << 2)), 1, 0, 0 }, /* full32range at 16 */
+    { (ASN_TAG_CLASS_CONTEXT | (2 << 2)), 2, 0, 0 }, /* unsigned32 at 17 */
+    { (ASN_TAG_CLASS_CONTEXT | (3 << 2)), 3, 0, 0 } /* unsplit32 at 18 */
+};
+static asn_SEQUENCE_specifics_t asn_SPC_T_specs_1 = {
+	sizeof(struct T),
+	offsetof(struct T, _asn_ctx),
+	asn_MAP_T_tag2el_1,
+	4,	/* Count of tags in the map */
+	0, 0, 0,	/* Optional elements (not needed) */
+	-1,	/* Start extensions */
+	-1	/* Stop extensions */
+};
+asn_TYPE_descriptor_t asn_DEF_T = {
+	"T",
+	"T",
+	SEQUENCE_free,
+	SEQUENCE_print,
+	SEQUENCE_constraint,
+	SEQUENCE_decode_ber,
+	SEQUENCE_encode_der,
+	SEQUENCE_decode_xer,
+	SEQUENCE_encode_xer,
+	SEQUENCE_decode_uper,
+	SEQUENCE_encode_uper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_T_tags_1,
+	sizeof(asn_DEF_T_tags_1)
+		/sizeof(asn_DEF_T_tags_1[0]), /* 1 */
+	asn_DEF_T_tags_1,	/* Same as above */
+	sizeof(asn_DEF_T_tags_1)
+		/sizeof(asn_DEF_T_tags_1[0]), /* 1 */
+	0,	/* No PER visible constraints */
+	asn_MBR_T_1,
+	4,	/* Elements count */
+	&asn_SPC_T_specs_1	/* Additional specs */
+};
+
diff --git a/tests/42-real-life-OK.asn1.-PR b/tests/42-real-life-OK.asn1.-PR
index 898d941..0fd30dc 100644
--- a/tests/42-real-life-OK.asn1.-PR
+++ b/tests/42-real-life-OK.asn1.-PR
@@ -736,7 +736,9 @@
 	asn_MAP_accept_as_enum2value_2,	/* N => "tag"; sorted by N */
 	3,	/* Number of elements in the maps */
 	4,	/* Extensions before this member */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_accept_as_tags_2[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/50-constraint-OK.asn1.-P b/tests/50-constraint-OK.asn1.-P
index 6792307..5fcd1a9 100644
--- a/tests/50-constraint-OK.asn1.-P
+++ b/tests/50-constraint-OK.asn1.-P
@@ -3759,7 +3759,9 @@
 	asn_MAP_enum_c_enum2value_6,	/* N => "tag"; sorted by N */
 	3,	/* Number of elements in the maps */
 	3,	/* Extensions before this member */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_enum_c_tags_6[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
@@ -4088,7 +4090,9 @@
 	asn_MAP_Enum0_enum2value_1,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_Enum0_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
@@ -4251,7 +4255,9 @@
 	asn_MAP_Enum1_enum2value_1,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_Enum1_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/50-constraint-OK.asn1.-Pgen-PER b/tests/50-constraint-OK.asn1.-Pgen-PER
index 4a95914..74903a6 100644
--- a/tests/50-constraint-OK.asn1.-Pgen-PER
+++ b/tests/50-constraint-OK.asn1.-Pgen-PER
@@ -4384,7 +4384,9 @@
 	asn_MAP_enum_c_enum2value_6,	/* N => "tag"; sorted by N */
 	3,	/* Number of elements in the maps */
 	3,	/* Extensions before this member */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_enum_c_tags_6[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
@@ -4751,7 +4753,9 @@
 	asn_MAP_Enum0_enum2value_1,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_Enum0_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
@@ -4940,7 +4944,9 @@
 	asn_MAP_Enum1_enum2value_1,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_Enum1_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/66-ref-simple-OK.asn1.-P b/tests/66-ref-simple-OK.asn1.-P
index 2eecf5e..9d315e2 100644
--- a/tests/66-ref-simple-OK.asn1.-P
+++ b/tests/66-ref-simple-OK.asn1.-P
@@ -184,7 +184,9 @@
 	asn_MAP_SimpleType_enum2value_1,	/* N => "tag"; sorted by N */
 	3,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_SimpleType_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/70-xer-test-OK.asn1.-P b/tests/70-xer-test-OK.asn1.-P
index aa7e11e..e109a8b 100644
--- a/tests/70-xer-test-OK.asn1.-P
+++ b/tests/70-xer-test-OK.asn1.-P
@@ -616,7 +616,9 @@
 	asn_MAP_enum_enum2value_4,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_enum_tags_4[] = {
 	(ASN_TAG_CLASS_CONTEXT | (1 << 2)),
@@ -1146,7 +1148,9 @@
 	asn_MAP_Member_enum2value_2,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_Member_tags_2[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
@@ -1467,7 +1471,9 @@
 	asn_MAP_name_enum2value_2,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_name_tags_2[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/73-circular-OK.asn1.-P b/tests/73-circular-OK.asn1.-P
index 1ab4dbf..fe581b6 100644
--- a/tests/73-circular-OK.asn1.-P
+++ b/tests/73-circular-OK.asn1.-P
@@ -821,7 +821,9 @@
 	asn_MAP_EnumType_enum2value_1,	/* N => "tag"; sorted by N */
 	2,	/* Number of elements in the maps */
 	0,	/* Enumeration is not extensible */
-	1	/* Strict enumeration */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
 };
 static ber_tlv_tag_t asn_DEF_EnumType_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
diff --git a/tests/90-cond-int-type-OK.asn1.-P b/tests/90-cond-int-type-OK.asn1.-P
index 5055e4d..08f92d4 100644
--- a/tests/90-cond-int-type-OK.asn1.-P
+++ b/tests/90-cond-int-type-OK.asn1.-P
@@ -557,11 +557,11 @@
 
 /*** <<< INCLUDES [NO-IntegerLowHigh] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerLowHigh] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerLowHigh_t;
+typedef unsigned long	 NO_IntegerLowHigh_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerLowHigh] >>> ***/
 
@@ -579,8 +579,7 @@
 int
 NO_IntegerLowHigh_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -589,12 +588,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 1 && value <= 3000000000)) {
 		/* Constraint check succeeded */
@@ -608,24 +602,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerLowHigh_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -675,6 +669,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerLowHigh] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerLowHigh_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerLowHigh_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -698,7 +697,7 @@
 		/sizeof(asn_DEF_NO_IntegerLowHigh_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerLowHigh_specs_1	/* Additional specs */
 };
 
 
@@ -1145,11 +1144,11 @@
 
 /*** <<< INCLUDES [NO-IntegerOutRange] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutRange] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutRange_t;
+typedef unsigned long	 NO_IntegerOutRange_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutRange] >>> ***/
 
@@ -1167,8 +1166,7 @@
 int
 NO_IntegerOutRange_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1177,12 +1175,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 3000000000 && value <= 3000000001)) {
 		/* Constraint check succeeded */
@@ -1196,24 +1189,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutRange_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1263,6 +1256,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutRange] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutRange_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutRange_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1286,17 +1284,17 @@
 		/sizeof(asn_DEF_NO_IntegerOutRange_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutRange_specs_1	/* Additional specs */
 };
 
 
 /*** <<< INCLUDES [NO-IntegerOutValue] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutValue] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutValue_t;
+typedef unsigned long	 NO_IntegerOutValue_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutValue] >>> ***/
 
@@ -1314,8 +1312,7 @@
 int
 NO_IntegerOutValue_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1324,12 +1321,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value == 3000000000)) {
 		/* Constraint check succeeded */
@@ -1343,24 +1335,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutValue_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1410,6 +1402,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutValue] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutValue_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutValue_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1433,7 +1430,7 @@
 		/sizeof(asn_DEF_NO_IntegerOutValue_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutValue_specs_1	/* Additional specs */
 };
 
 
@@ -2150,11 +2147,11 @@
 
 /*** <<< INCLUDES [NO-IntegerInRange6] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerInRange6] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerInRange6_t;
+typedef unsigned long	 NO_IntegerInRange6_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerInRange6] >>> ***/
 
@@ -2172,8 +2169,7 @@
 int
 NO_IntegerInRange6_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -2182,43 +2178,31 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
-	if((value >= 0 && value <= 4294967295)) {
-		/* Constraint check succeeded */
-		return 0;
-	} else {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: constraint failed (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	/* Constraint check succeeded */
+	return 0;
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerInRange6_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -2268,6 +2252,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerInRange6] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerInRange6_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerInRange6_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -2291,7 +2280,7 @@
 		/sizeof(asn_DEF_NO_IntegerInRange6_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerInRange6_specs_1	/* Additional specs */
 };
 
 
diff --git a/tests/90-cond-int-type-OK.asn1.-Pfnative-types b/tests/90-cond-int-type-OK.asn1.-Pfnative-types
index 461e5eb..4c898f8 100644
--- a/tests/90-cond-int-type-OK.asn1.-Pfnative-types
+++ b/tests/90-cond-int-type-OK.asn1.-Pfnative-types
@@ -550,11 +550,11 @@
 
 /*** <<< INCLUDES [NO-IntegerLowHigh] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerLowHigh] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerLowHigh_t;
+typedef unsigned long	 NO_IntegerLowHigh_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerLowHigh] >>> ***/
 
@@ -572,8 +572,7 @@
 int
 NO_IntegerLowHigh_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -582,12 +581,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 1 && value <= 3000000000)) {
 		/* Constraint check succeeded */
@@ -601,24 +595,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerLowHigh_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -668,6 +662,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerLowHigh] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerLowHigh_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerLowHigh_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -691,7 +690,7 @@
 		/sizeof(asn_DEF_NO_IntegerLowHigh_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerLowHigh_specs_1	/* Additional specs */
 };
 
 
@@ -1132,11 +1131,11 @@
 
 /*** <<< INCLUDES [NO-IntegerOutRange] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutRange] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutRange_t;
+typedef unsigned long	 NO_IntegerOutRange_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutRange] >>> ***/
 
@@ -1154,8 +1153,7 @@
 int
 NO_IntegerOutRange_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1164,12 +1162,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 3000000000 && value <= 3000000001)) {
 		/* Constraint check succeeded */
@@ -1183,24 +1176,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutRange_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1250,6 +1243,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutRange] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutRange_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutRange_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1273,17 +1271,17 @@
 		/sizeof(asn_DEF_NO_IntegerOutRange_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutRange_specs_1	/* Additional specs */
 };
 
 
 /*** <<< INCLUDES [NO-IntegerOutValue] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutValue] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutValue_t;
+typedef unsigned long	 NO_IntegerOutValue_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutValue] >>> ***/
 
@@ -1301,8 +1299,7 @@
 int
 NO_IntegerOutValue_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1311,12 +1308,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value == 3000000000)) {
 		/* Constraint check succeeded */
@@ -1330,24 +1322,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutValue_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1397,6 +1389,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutValue] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutValue_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutValue_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1420,7 +1417,7 @@
 		/sizeof(asn_DEF_NO_IntegerOutValue_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutValue_specs_1	/* Additional specs */
 };
 
 
@@ -2131,11 +2128,11 @@
 
 /*** <<< INCLUDES [NO-IntegerInRange6] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerInRange6] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerInRange6_t;
+typedef unsigned long	 NO_IntegerInRange6_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerInRange6] >>> ***/
 
@@ -2153,8 +2150,7 @@
 int
 NO_IntegerInRange6_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -2163,43 +2159,31 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
-	if((value >= 0 && value <= 4294967295)) {
-		/* Constraint check succeeded */
-		return 0;
-	} else {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: constraint failed (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	/* Constraint check succeeded */
+	return 0;
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerInRange6_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -2249,6 +2233,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerInRange6] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerInRange6_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerInRange6_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -2272,7 +2261,7 @@
 		/sizeof(asn_DEF_NO_IntegerInRange6_tags_1[0]), /* 1 */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerInRange6_specs_1	/* Additional specs */
 };
 
 
diff --git a/tests/90-cond-int-type-OK.asn1.-Pgen-PER b/tests/90-cond-int-type-OK.asn1.-Pgen-PER
index d7957cb..5b16f46 100644
--- a/tests/90-cond-int-type-OK.asn1.-Pgen-PER
+++ b/tests/90-cond-int-type-OK.asn1.-Pgen-PER
@@ -653,11 +653,11 @@
 
 /*** <<< INCLUDES [NO-IntegerLowHigh] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerLowHigh] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerLowHigh_t;
+typedef unsigned long	 NO_IntegerLowHigh_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerLowHigh] >>> ***/
 
@@ -677,8 +677,7 @@
 int
 NO_IntegerLowHigh_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -687,12 +686,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 1 && value <= 3000000000)) {
 		/* Constraint check succeeded */
@@ -706,24 +700,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerLowHigh_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -796,6 +790,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerLowHigh] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerLowHigh_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerLowHigh_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -820,7 +819,7 @@
 		/sizeof(asn_DEF_NO_IntegerLowHigh_tags_1[0]), /* 1 */
 	&asn_PER_type_NO_IntegerLowHigh_constr_1,
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerLowHigh_specs_1	/* Additional specs */
 };
 
 
@@ -1345,11 +1344,11 @@
 
 /*** <<< INCLUDES [NO-IntegerOutRange] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutRange] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutRange_t;
+typedef unsigned long	 NO_IntegerOutRange_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutRange] >>> ***/
 
@@ -1369,8 +1368,7 @@
 int
 NO_IntegerOutRange_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1379,12 +1377,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value >= 3000000000 && value <= 3000000001)) {
 		/* Constraint check succeeded */
@@ -1398,24 +1391,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutRange_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1488,6 +1481,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutRange] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutRange_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutRange_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1512,17 +1510,17 @@
 		/sizeof(asn_DEF_NO_IntegerOutRange_tags_1[0]), /* 1 */
 	&asn_PER_type_NO_IntegerOutRange_constr_1,
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutRange_specs_1	/* Additional specs */
 };
 
 
 /*** <<< INCLUDES [NO-IntegerOutValue] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerOutValue] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerOutValue_t;
+typedef unsigned long	 NO_IntegerOutValue_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerOutValue] >>> ***/
 
@@ -1542,8 +1540,7 @@
 int
 NO_IntegerOutValue_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -1552,12 +1549,7 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
 	if((value == 3000000000)) {
 		/* Constraint check succeeded */
@@ -1571,24 +1563,24 @@
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerOutValue_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -1661,6 +1653,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerOutValue] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerOutValue_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerOutValue_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -1685,7 +1682,7 @@
 		/sizeof(asn_DEF_NO_IntegerOutValue_tags_1[0]), /* 1 */
 	&asn_PER_type_NO_IntegerOutValue_constr_1,
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerOutValue_specs_1	/* Additional specs */
 };
 
 
@@ -2532,11 +2529,11 @@
 
 /*** <<< INCLUDES [NO-IntegerInRange6] >>> ***/
 
-#include <INTEGER.h>
+#include <NativeInteger.h>
 
 /*** <<< TYPE-DECLS [NO-IntegerInRange6] >>> ***/
 
-typedef INTEGER_t	 NO_IntegerInRange6_t;
+typedef unsigned long	 NO_IntegerInRange6_t;
 
 /*** <<< FUNC-DECLS [NO-IntegerInRange6] >>> ***/
 
@@ -2556,8 +2553,7 @@
 int
 NO_IntegerInRange6_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
 			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
-	const INTEGER_t *st = (const INTEGER_t *)sptr;
-	long value;
+	unsigned long value;
 	
 	if(!sptr) {
 		_ASN_CTFAIL(app_key, td, sptr,
@@ -2566,43 +2562,31 @@
 		return -1;
 	}
 	
-	if(asn_INTEGER2long(st, &value)) {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: value too large (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	value = *(const unsigned long *)sptr;
 	
-	if((value >= 0 && value <= 4294967295)) {
-		/* Constraint check succeeded */
-		return 0;
-	} else {
-		_ASN_CTFAIL(app_key, td, sptr,
-			"%s: constraint failed (%s:%d)",
-			td->name, __FILE__, __LINE__);
-		return -1;
-	}
+	/* Constraint check succeeded */
+	return 0;
 }
 
 /*
- * This type is implemented using INTEGER,
+ * This type is implemented using NativeInteger,
  * so here we adjust the DEF accordingly.
  */
 static void
 NO_IntegerInRange6_1_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
-	td->free_struct    = asn_DEF_INTEGER.free_struct;
-	td->print_struct   = asn_DEF_INTEGER.print_struct;
-	td->ber_decoder    = asn_DEF_INTEGER.ber_decoder;
-	td->der_encoder    = asn_DEF_INTEGER.der_encoder;
-	td->xer_decoder    = asn_DEF_INTEGER.xer_decoder;
-	td->xer_encoder    = asn_DEF_INTEGER.xer_encoder;
-	td->uper_decoder   = asn_DEF_INTEGER.uper_decoder;
-	td->uper_encoder   = asn_DEF_INTEGER.uper_encoder;
+	td->free_struct    = asn_DEF_NativeInteger.free_struct;
+	td->print_struct   = asn_DEF_NativeInteger.print_struct;
+	td->ber_decoder    = asn_DEF_NativeInteger.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeInteger.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeInteger.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeInteger.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeInteger.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeInteger.uper_encoder;
 	if(!td->per_constraints)
-		td->per_constraints = asn_DEF_INTEGER.per_constraints;
-	td->elements       = asn_DEF_INTEGER.elements;
-	td->elements_count = asn_DEF_INTEGER.elements_count;
-	td->specifics      = asn_DEF_INTEGER.specifics;
+		td->per_constraints = asn_DEF_NativeInteger.per_constraints;
+	td->elements       = asn_DEF_NativeInteger.elements;
+	td->elements_count = asn_DEF_NativeInteger.elements_count;
+     /* td->specifics      = asn_DEF_NativeInteger.specifics;	// Defined explicitly */
 }
 
 void
@@ -2675,6 +2659,11 @@
 
 /*** <<< STAT-DEFS [NO-IntegerInRange6] >>> ***/
 
+static asn_INTEGER_specifics_t asn_SPC_NO_IntegerInRange6_specs_1 = {
+	0,	0,	0,	0,	0,
+	0,	/* Native long size */
+	1	/* Unsigned representation */
+};
 static ber_tlv_tag_t asn_DEF_NO_IntegerInRange6_tags_1[] = {
 	(ASN_TAG_CLASS_UNIVERSAL | (2 << 2))
 };
@@ -2699,7 +2688,7 @@
 		/sizeof(asn_DEF_NO_IntegerInRange6_tags_1[0]), /* 1 */
 	&asn_PER_type_NO_IntegerInRange6_constr_1,
 	0, 0,	/* No members */
-	0	/* No specifics */
+	&asn_SPC_NO_IntegerInRange6_specs_1	/* Additional specs */
 };