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authorrihab kouki <rihab.kouki@st.com>2020-07-28 11:24:49 +0100
committerrihab kouki <rihab.kouki@st.com>2020-07-28 11:24:49 +0100
commit96d6da4e252b06dcfdc041e7df23e86161c33007 (patch)
treea262f59bb1db7ec7819acae435f5049cbe5e2354 /Core_A/Include/cmsis_gcc.h
parent9f95ff5b6ba01db09552b84a0ab79607060a2666 (diff)
downloadst-cmsis-core-lowfat-master.tar.gz
st-cmsis-core-lowfat-master.tar.bz2
st-cmsis-core-lowfat-master.zip
Official ARM version: v5.6.0HEADmaster
Diffstat (limited to 'Core_A/Include/cmsis_gcc.h')
-rw-r--r--Core_A/Include/cmsis_gcc.h157
1 files changed, 146 insertions, 11 deletions
diff --git a/Core_A/Include/cmsis_gcc.h b/Core_A/Include/cmsis_gcc.h
index 4f46462..0c407c2 100644
--- a/Core_A/Include/cmsis_gcc.h
+++ b/Core_A/Include/cmsis_gcc.h
@@ -1,11 +1,11 @@
/**************************************************************************//**
* @file cmsis_gcc.h
* @brief CMSIS compiler specific macros, functions, instructions
- * @version V1.0.2
- * @date 09. April 2018
+ * @version V1.2.0
+ * @date 17. May 2019
******************************************************************************/
/*
- * Copyright (c) 2009-2018 Arm Limited. All rights reserved.
+ * Copyright (c) 2009-2019 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
@@ -37,8 +37,9 @@
#endif
/* CMSIS compiler specific defines */
+
#ifndef __ASM
- #define __ASM asm
+ #define __ASM __asm
#endif
#ifndef __INLINE
#define __INLINE inline
@@ -104,6 +105,123 @@
#ifndef __ALIGNED
#define __ALIGNED(x) __attribute__((aligned(x)))
#endif
+#ifndef __COMPILER_BARRIER
+ #define __COMPILER_BARRIER() __ASM volatile("":::"memory")
+#endif
+
+
+__STATIC_FORCEINLINE uint32_t __QSUB16(uint32_t op1, uint32_t op2)
+{
+ uint32_t result;
+
+ __ASM volatile ("qsub16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+
+__STATIC_FORCEINLINE uint32_t __QADD16(uint32_t op1, uint32_t op2)
+{
+ uint32_t result;
+
+ __ASM volatile ("qadd16 %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE int32_t __QADD( int32_t op1, int32_t op2)
+{
+ int32_t result;
+
+ __ASM volatile ("qadd %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE uint64_t __SMLALD (uint32_t op1, uint32_t op2, uint64_t acc)
+{
+ union llreg_u{
+ uint32_t w32[2];
+ uint64_t w64;
+ } llr;
+ llr.w64 = acc;
+
+#ifndef __ARMEB__ /* Little endian */
+ __ASM volatile ("smlald %0, %1, %2, %3" : "=r" (llr.w32[0]), "=r" (llr.w32[1]): "r" (op1), "r" (op2) , "0" (llr.w32[0]), "1" (llr.w32[1]) );
+#else /* Big endian */
+ __ASM volatile ("smlald %0, %1, %2, %3" : "=r" (llr.w32[1]), "=r" (llr.w32[0]): "r" (op1), "r" (op2) , "0" (llr.w32[1]), "1" (llr.w32[0]) );
+#endif
+
+ return(llr.w64);
+}
+
+__STATIC_FORCEINLINE int32_t __QSUB( int32_t op1, int32_t op2)
+{
+ int32_t result;
+
+ __ASM volatile ("qsub %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE uint32_t __SMUAD (uint32_t op1, uint32_t op2)
+{
+ uint32_t result;
+
+ __ASM volatile ("smuad %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+#define __PKHBT(ARG1,ARG2,ARG3) ( ((((uint32_t)(ARG1)) ) & 0x0000FFFFUL) | \
+ ((((uint32_t)(ARG2)) << (ARG3)) & 0xFFFF0000UL) )
+
+__STATIC_FORCEINLINE uint32_t __SMLAD (uint32_t op1, uint32_t op2, uint32_t op3)
+{
+ uint32_t result;
+
+ __ASM volatile ("smlad %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE uint32_t __SMUADX (uint32_t op1, uint32_t op2)
+{
+ uint32_t result;
+
+ __ASM volatile ("smuadx %0, %1, %2" : "=r" (result) : "r" (op1), "r" (op2) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE uint32_t __SMLADX (uint32_t op1, uint32_t op2, uint32_t op3)
+{
+ uint32_t result;
+
+ __ASM volatile ("smladx %0, %1, %2, %3" : "=r" (result) : "r" (op1), "r" (op2), "r" (op3) );
+ return(result);
+}
+
+__STATIC_FORCEINLINE uint64_t __SMLALDX (uint32_t op1, uint32_t op2, uint64_t acc)
+{
+ union llreg_u{
+ uint32_t w32[2];
+ uint64_t w64;
+ } llr;
+ llr.w64 = acc;
+
+#ifndef __ARMEB__ /* Little endian */
+ __ASM volatile ("smlaldx %0, %1, %2, %3" : "=r" (llr.w32[0]), "=r" (llr.w32[1]): "r" (op1), "r" (op2) , "0" (llr.w32[0]), "1" (llr.w32[1]) );
+#else /* Big endian */
+ __ASM volatile ("smlaldx %0, %1, %2, %3" : "=r" (llr.w32[1]), "=r" (llr.w32[0]): "r" (op1), "r" (op2) , "0" (llr.w32[1]), "1" (llr.w32[0]) );
+#endif
+
+ return(llr.w64);
+}
+
+__STATIC_FORCEINLINE int32_t __SMMLA (int32_t op1, int32_t op2, int32_t op3)
+{
+ int32_t result;
+
+ __ASM volatile ("smmla %0, %1, %2, %3" : "=r" (result): "r" (op1), "r" (op2), "r" (op3) );
+ return(result);
+}
+
+
+
/* ########################## Core Instruction Access ######################### */
/**
@@ -171,7 +289,7 @@ __STATIC_FORCEINLINE uint32_t __REV(uint32_t value)
#else
uint32_t result;
- __ASM volatile ("rev %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
+ __ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) );
return result;
#endif
}
@@ -204,7 +322,7 @@ __STATIC_FORCEINLINE int16_t __REVSH(int16_t value)
#else
int16_t result;
- __ASM volatile ("revsh %0, %1" : __CMSIS_GCC_OUT_REG (result) : __CMSIS_GCC_USE_REG (value) );
+ __ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) );
return result;
#endif
}
@@ -267,7 +385,23 @@ __STATIC_FORCEINLINE uint32_t __RBIT(uint32_t value)
\param [in] value Value to count the leading zeros
\return number of leading zeros in value
*/
-#define __CLZ (uint8_t)__builtin_clz
+__STATIC_FORCEINLINE uint8_t __CLZ(uint32_t value)
+{
+ /* Even though __builtin_clz produces a CLZ instruction on ARM, formally
+ __builtin_clz(0) is undefined behaviour, so handle this case specially.
+ This guarantees ARM-compatible results if happening to compile on a non-ARM
+ target, and ensures the compiler doesn't decide to activate any
+ optimisations using the logic "value was passed to __builtin_clz, so it
+ is non-zero".
+ ARM GCC 7.3 and possibly earlier will optimise this test away, leaving a
+ single CLZ instruction.
+ */
+ if (value == 0U)
+ {
+ return 32U;
+ }
+ return __builtin_clz(value);
+}
/**
\brief LDR Exclusive (8 bit)
@@ -667,10 +801,11 @@ __STATIC_INLINE void __FPU_Enable(void)
#endif
//Initialise FPSCR to a known state
- " VMRS R2,FPSCR \n"
- " LDR R3,=0x00086060 \n" //Mask off all bits that do not have to be preserved. Non-preserved bits can/should be zero.
- " AND R2,R2,R3 \n"
- " VMSR FPSCR,R2 "
+ " VMRS R1,FPSCR \n"
+ " LDR R2,=0x00086060 \n" //Mask off all bits that do not have to be preserved. Non-preserved bits can/should be zero.
+ " AND R1,R1,R2 \n"
+ " VMSR FPSCR,R1 "
+ : : : "cc", "r1", "r2"
);
}