From 8d90fb3e4a5d02df75584016563ef84901967b9f Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Fri, 7 Jan 2022 20:24:34 +0200
Subject: Merged bits.h and bytes.h

---
 common/bits.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 common/bits.c

(limited to 'common/bits.c')

diff --git a/common/bits.c b/common/bits.c
new file mode 100644
index 0000000..ca99ed2
--- /dev/null
+++ b/common/bits.c
@@ -0,0 +1,32 @@
+#include <apos/types.h>
+#include <apos/attrs.h>
+#include <apos/bits.h>
+#include <apos/builtin.h>
+
+#undef __bswap16
+__weak uint16_t __bswap16(uint16_t u)
+{
+	return (u & 0xff00) >> 8 | (u & 0x00ff) << 8;
+}
+
+#undef __bswap32
+__weak uint32_t __bswap32(uint32_t u)
+{
+	return (u & 0xff000000) >> 24 |
+		(u & 0x00ff0000) >> 8 |
+		(u & 0x0000ff00) << 8 |
+		(u & 0x000000ff) << 24;
+}
+
+#undef __bswap64
+__weak uint64_t __bswap64(uint64_t u)
+{
+	return (u & 0xff00000000000000ULL) >> 56	|
+		(u & 0x00ff000000000000ULL) >> 40	|
+		(u & 0x0000ff0000000000ULL) >> 24	|
+		(u & 0x000000ff00000000ULL) >> 8	|
+		(u & 0x00000000ff000000ULL) << 8	|
+		(u & 0x0000000000ff0000ULL) << 24	|
+		(u & 0x000000000000ff00ULL) << 40	|
+		(u & 0x00000000000000ffULL) << 56;
+}
-- 
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