From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001
From: joshua <joshua@joshuayun.com>
Date: Sat, 30 Dec 2023 23:54:31 -0500
Subject: initial commit

---
 .../RefLibs/src/BasicMathFunctions/shift.c         | 73 ++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/shift.c

(limited to 'Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/shift.c')

diff --git a/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/shift.c b/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/shift.c
new file mode 100644
index 0000000..3bc53ad
--- /dev/null
+++ b/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/BasicMathFunctions/shift.c
@@ -0,0 +1,73 @@
+#include "ref.h"
+
+void ref_shift_q31(
+  q31_t * pSrc,
+  int8_t shiftBits,
+  q31_t * pDst,
+  uint32_t blockSize)
+{
+	uint32_t i;
+	
+	if (shiftBits < 0)
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] << shiftBits;
+		}
+	}
+	else
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] >> -shiftBits;
+		}
+	}
+}
+
+void ref_shift_q15(
+  q15_t * pSrc,
+  int8_t shiftBits,
+  q15_t * pDst,
+  uint32_t blockSize)
+{
+	uint32_t i;
+	
+	if (shiftBits < 0)
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] << shiftBits;
+		}
+	}
+	else
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] >> -shiftBits;
+		}
+	}
+}
+
+void ref_shift_q7(
+  q7_t * pSrc,
+  int8_t shiftBits,
+  q7_t * pDst,
+  uint32_t blockSize)
+{
+	uint32_t i;
+	
+	if (shiftBits < 0)
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] << shiftBits;
+		}
+	}
+	else
+	{
+		for(i=0;i<blockSize;i++)
+		{
+			pDst[i] = pSrc[i] >> -shiftBits;
+		}
+	}
+}
-- 
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