diff --git a/include/ircd/simd.h b/include/ircd/simd.h
index bd16df8ea..ee23b8968 100644
--- a/include/ircd/simd.h
+++ b/include/ircd/simd.h
@@ -164,17 +164,9 @@ namespace ircd::simd
 	template<int bits> u128x1 shl(const u128x1 &a) noexcept;
 	template<int bits> u128x1 shr(const u128x1 &a) noexcept;
 
-	// debug print lanes hex
-	template<class V>
-	string_view print_lane(const mutable_buffer &buf, const V &) noexcept;
-
-	// debug print register hex
-	template<class V>
-	string_view print_reg(const mutable_buffer &buf, const V &) noexcept;
-
-	// debug print memory hex
-	template<class V>
-	string_view print_mem(const mutable_buffer &buf, const V &) noexcept;
+	// readable output and debug
+	template<class T> string_view str_reg(const mutable_buffer &buf, const T &, const uint &fmt = 0) noexcept;
+	template<class T> string_view str_mem(const mutable_buffer &buf, const T &, const uint &fmt = 0) noexcept;
 }
 
 namespace ircd
diff --git a/ircd/simd.cc b/ircd/simd.cc
index 7012dd1c4..1fb85b6f2 100644
--- a/ircd/simd.cc
+++ b/ircd/simd.cc
@@ -77,14 +77,16 @@ ircd::simd::u128x1_lane_id
 
 template<>
 ircd::string_view
-ircd::simd::print_lane(const mutable_buffer &buf,
-                       const u8x16 &a)
+ircd::simd::str_reg(const mutable_buffer &buf,
+                    const u8x16 &a,
+                    const uint &fmt)
 noexcept
 {
 	const auto len(::snprintf
 	(
 		data(buf), size(buf),
-		"[%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x]",
+		"0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x "
+		"0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x",
 		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
 		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
 	));
@@ -97,19 +99,196 @@ noexcept
 
 template<>
 ircd::string_view
-ircd::simd::print_lane(const mutable_buffer &buf,
-                       const u8x32 &a)
+ircd::simd::str_reg(const mutable_buffer &buf,
+                    const u16x8 &a_,
+                    const uint &fmt)
 noexcept
 {
-    const auto len(::snprintf
-    (
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
 		data(buf), size(buf),
-		"[%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x"
-		"|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x|%02x]",
-		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
-		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f],
-		a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17],
-		a[0x18], a[0x19], a[0x1a], a[0x1b], a[0x1c], a[0x1d], a[0x1e], a[0x1f]
+		"0x%02x%02x 0x%02x%02x 0x%02x%02x 0x%02x%02x "
+		"0x%02x%02x 0x%02x%02x 0x%02x%02x 0x%02x%02x",
+		a[0x01], a[0x00], a[0x03], a[0x02], a[0x05], a[0x04], a[0x07], a[0x06],
+		a[0x09], a[0x08], a[0x0b], a[0x0a], a[0x0d], a[0x0c], a[0x0f], a[0x0e]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_reg(const mutable_buffer &buf,
+                    const u32x4 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"0x%02x%02x%02x%02x 0x%02x%02x%02x%02x "
+		"0x%02x%02x%02x%02x 0x%02x%02x%02x%02x",
+		a[0x03], a[0x02], a[0x01], a[0x00], a[0x07], a[0x06], a[0x05], a[0x04],
+		a[0x0b], a[0x0a], a[0x09], a[0x08], a[0x0f], a[0x0e], a[0x0d], a[0x0c]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_reg(const mutable_buffer &buf,
+                    const u64x2 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"0x%02x%02x%02x%02x%02x%02x%02x%02x 0x%02x%02x%02x%02x%02x%02x%02x%02x",
+		a[0x07], a[0x06], a[0x05], a[0x04], a[0x03], a[0x02], a[0x01], a[0x00],
+		a[0x0f], a[0x0e], a[0x0d], a[0x0c], a[0x0b], a[0x0a], a[0x09], a[0x08]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_reg(const mutable_buffer &buf,
+                    const u128x1 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+		a[0x0f], a[0x0e], a[0x0d], a[0x0c], a[0x0b], a[0x0a], a[0x09], a[0x08],
+		a[0x07], a[0x06], a[0x05], a[0x04], a[0x03], a[0x02], a[0x01], a[0x00]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_mem(const mutable_buffer &buf,
+                    const u8x16 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
+		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_mem(const mutable_buffer &buf,
+                    const u16x8 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"%02x%02x %02x%02x %02x%02x %02x%02x %02x%02x %02x%02x %02x%02x %02x%02x",
+		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
+		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_mem(const mutable_buffer &buf,
+                    const u32x4 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x",
+		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
+		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_mem(const mutable_buffer &buf,
+                    const u64x2 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"%02x%02x%02x%02x%02x%02x%02x%02x %02x%02x%02x%02x%02x%02x%02x%02x",
+		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
+		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
+	));
+
+	return string_view
+	{
+		data(buf), size_t(len)
+	};
+}
+
+template<>
+ircd::string_view
+ircd::simd::str_mem(const mutable_buffer &buf,
+                    const u128x1 &a_,
+                    const uint &fmt)
+noexcept
+{
+	const u8x16 a(a_);
+	const auto len(::snprintf
+	(
+		data(buf), size(buf),
+		"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+		a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07],
+		a[0x08], a[0x09], a[0x0a], a[0x0b], a[0x0c], a[0x0d], a[0x0e], a[0x0f]
 	));
 
 	return string_view