CMSIS-Core (Cortex-A)  Version 1.2.1
CMSIS-Core support for Cortex-A processor-based devices
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Macros | Functions
cmsis_armcc.h File Reference

CMSIS compiler specific macros, functions, instructions. More...

Macros

#define __ARM_ARCH_7A__   1
 Set to 1 when generating code for Armv7-A (Cortex-A7) More...
 
#define __ASM   __asm
 Pass information from the compiler to the assembler. More...
 
#define __INLINE   __inline
 Recommend that function should be inlined by the compiler. More...
 
#define __FORCEINLINE   __forceinline
 
#define __STATIC_INLINE   static __inline
 Define a static function should be inlined by the compiler. More...
 
#define __STATIC_FORCEINLINE   static __forceinline
 
#define __NO_RETURN   __declspec(noreturn)
 Inform the compiler that a function does not return. More...
 
#define CMSIS_DEPRECATED   __attribute__((deprecated))
 
#define __USED   __attribute__((used))
 Inform that a variable shall be retained in executable image. More...
 
#define __WEAK   __attribute__((weak))
 Export a function or variable weakly to allow overwrites. More...
 
#define __PACKED   __attribute__((packed))
 Request smallest possible alignment. More...
 
#define __PACKED_STRUCT   __packed struct
 
#define __UNALIGNED_UINT16_WRITE(addr, val)   ((*((__packed uint16_t *)(addr))) = (val))
 
#define __UNALIGNED_UINT16_READ(addr)   (*((const __packed uint16_t *)(addr)))
 
#define __UNALIGNED_UINT32_WRITE(addr, val)   ((*((__packed uint32_t *)(addr))) = (val))
 
#define __UNALIGNED_UINT32_READ(addr)   (*((const __packed uint32_t *)(addr)))
 
#define __ALIGNED(x)   __attribute__((aligned(x)))
 Minimum alignment for a variable. More...
 
#define __COMPILER_BARRIER()   __memory_changed()
 
#define __NOP   __nop
 No Operation. More...
 
#define __WFI   __wfi
 Wait For Interrupt. More...
 
#define __WFE   __wfe
 Wait For Event. More...
 
#define __SEV   __sev
 Send Event. More...
 
#define __ISB()   __isb(0xF)
 Instruction Synchronization Barrier. More...
 
#define __DSB()   __dsb(0xF)
 Data Synchronization Barrier. More...
 
#define __DMB()   __dmb(0xF)
 Data Memory Barrier. More...
 
#define __REV   __rev
 Reverse byte order (32 bit) More...
 
#define __ROR   __ror
 Reverse byte order (16 bit) More...
 
#define __BKPT(value)   __breakpoint(value)
 Breakpoint. More...
 
#define __RBIT   __rbit
 Reverse bit order of value. More...
 
#define __CLZ   __clz
 Count leading zeros. More...
 
#define __LDREXB(ptr)   _Pragma("push") _Pragma("diag_suppress 3731") ((uint8_t ) __ldrex(ptr)) _Pragma("pop")
 LDR Exclusive (8 bit) More...
 
#define __LDREXH(ptr)   _Pragma("push") _Pragma("diag_suppress 3731") ((uint16_t) __ldrex(ptr)) _Pragma("pop")
 LDR Exclusive (16 bit) More...
 
#define __LDREXW(ptr)   _Pragma("push") _Pragma("diag_suppress 3731") ((uint32_t ) __ldrex(ptr)) _Pragma("pop")
 LDR Exclusive (32 bit) More...
 
#define __STREXB(value, ptr)   _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")
 STR Exclusive (8 bit) More...
 
#define __STREXH(value, ptr)   _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")
 STR Exclusive (16 bit) More...
 
#define __STREXW(value, ptr)   _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")
 STR Exclusive (32 bit) More...
 
#define __CLREX   __clrex
 Remove the exclusive lock. More...
 
#define __SSAT   __ssat
 Signed Saturate. More...
 
#define __USAT   __usat
 Unsigned Saturate. More...
 
#define __enable_fault_irq   __enable_fiq
 Enable IRQ Interrupts. More...
 
#define __disable_fault_irq   __disable_fiq
 Disable FIQ. More...
 
#define __get_CP(cp, op1, Rt, CRn, CRm, op2)   do { register volatile uint32_t tmp __ASM("cp" # cp ":" # op1 ":c" # CRn ":c" # CRm ":" # op2); (Rt) = tmp; } while(0)
 
#define __set_CP(cp, op1, Rt, CRn, CRm, op2)   do { register volatile uint32_t tmp __ASM("cp" # cp ":" # op1 ":c" # CRn ":c" # CRm ":" # op2); tmp = (Rt); } while(0)
 
#define __get_CP64(cp, op1, Rt, CRm)
 
#define __set_CP64(cp, op1, Rt, CRm)
 

Functions

__STATIC_INLINE uint32_t __get_FPSCR (void)
 Get FPSCR (Floating Point Status/Control) More...
 
__STATIC_INLINE void __set_FPSCR (uint32_t fpscr)
 Set FPSCR (Floating Point Status/Control) More...
 
__STATIC_INLINE uint32_t __get_CPSR (void)
 Get CPSR (Current Program Status Register) More...
 
__STATIC_INLINE void __set_CPSR (uint32_t cpsr)
 Set CPSR (Current Program Status Register) More...
 
__STATIC_INLINE uint32_t __get_mode (void)
 Get Mode. More...
 
__STATIC_INLINE __ASM void __set_mode (uint32_t mode)
 Set Mode. More...
 
__STATIC_INLINE __ASM uint32_t __get_SP (void)
 Get Stack Pointer. More...
 
__STATIC_INLINE __ASM void __set_SP (uint32_t stack)
 Set Stack Pointer. More...
 
__STATIC_INLINE __ASM uint32_t __get_SP_usr (void)
 Get USR/SYS Stack Pointer. More...
 
__STATIC_INLINE __ASM void __set_SP_usr (uint32_t topOfProcStack)
 Set USR/SYS Stack Pointer. More...
 
__STATIC_INLINE uint32_t __get_FPEXC (void)
 Get FPEXC (Floating Point Exception Control Register) More...
 
__STATIC_INLINE void __set_FPEXC (uint32_t fpexc)
 Set FPEXC (Floating Point Exception Control Register) More...
 
__STATIC_INLINE __ASM void __FPU_Enable (void)
 Enable Floating Point Unit. More...
 

Description

Version
V1.0.5
Date
05. May 2021

Macro Definition Documentation

#define __CLREX   __clrex

Removes the exclusive lock which is created by LDREX.

#define __CLZ   __clz
Parameters
[in]valueValue to count the leading zeros
Returns
number of leading zeros in value
#define __COMPILER_BARRIER ( )    __memory_changed()
#define __disable_fault_irq   __disable_fiq

Disables FIQ interrupts by setting the F-bit in the CPSR. Can only be executed in Privileged modes.

#define __enable_fault_irq   __enable_fiq

Enables IRQ interrupts by clearing the I-bit in the CPSR. Can only be executed in Privileged modes. Disable IRQ Interrupts

Disables IRQ interrupts by setting the I-bit in the CPSR. Can only be executed in Privileged modes. Enable FIQ

Enables FIQ interrupts by clearing the F-bit in the CPSR. Can only be executed in Privileged modes.

#define __FORCEINLINE   __forceinline
#define __get_CP (   cp,
  op1,
  Rt,
  CRn,
  CRm,
  op2 
)    do { register volatile uint32_t tmp __ASM("cp" # cp ":" # op1 ":c" # CRn ":c" # CRm ":" # op2); (Rt) = tmp; } while(0)
#define __get_CP64 (   cp,
  op1,
  Rt,
  CRm 
)
#define __LDREXB (   ptr)    _Pragma("push") _Pragma("diag_suppress 3731") ((uint8_t ) __ldrex(ptr)) _Pragma("pop")

Executes a exclusive LDR instruction for 8 bit value.

Parameters
[in]ptrPointer to data
Returns
value of type uint8_t at (*ptr)
#define __LDREXH (   ptr)    _Pragma("push") _Pragma("diag_suppress 3731") ((uint16_t) __ldrex(ptr)) _Pragma("pop")

Executes a exclusive LDR instruction for 16 bit values.

Parameters
[in]ptrPointer to data
Returns
value of type uint16_t at (*ptr)
#define __LDREXW (   ptr)    _Pragma("push") _Pragma("diag_suppress 3731") ((uint32_t ) __ldrex(ptr)) _Pragma("pop")

Executes a exclusive LDR instruction for 32 bit values.

Parameters
[in]ptrPointer to data
Returns
value of type uint32_t at (*ptr)
#define __PACKED_STRUCT   __packed struct
#define __RBIT   __rbit
Parameters
[in]valueValue to reverse
Returns
Reversed value
#define __REV   __rev

Reverses the byte order in unsigned integer value. For example, 0x12345678 becomes 0x78563412.

Parameters
[in]valueValue to reverse
Returns
Reversed value
#define __ROR   __ror

Reverses the byte order within each halfword of a word. For example, 0x12345678 becomes 0x34127856.

Parameters
[in]valueValue to reverse
Returns
Reversed value Reverse byte order (16 bit)

Reverses the byte order in a 16-bit value and returns the signed 16-bit result. For example, 0x0080 becomes 0x8000.

Parameters
[in]valueValue to reverse
Returns
Reversed value Rotate Right in unsigned value (32 bit)
Parameters
[in]op1Value to rotate
[in]op2Number of Bits to rotate
Returns
Rotated value
#define __set_CP (   cp,
  op1,
  Rt,
  CRn,
  CRm,
  op2 
)    do { register volatile uint32_t tmp __ASM("cp" # cp ":" # op1 ":c" # CRn ":c" # CRm ":" # op2); tmp = (Rt); } while(0)
#define __set_CP64 (   cp,
  op1,
  Rt,
  CRm 
)
#define __SSAT   __ssat

Saturates a signed value.

Parameters
[in]valueValue to be saturated
[in]satBit position to saturate to (1..32)
Returns
Saturated value
#define __STATIC_FORCEINLINE   static __forceinline
#define __STREXB (   value,
  ptr 
)    _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")

Executes a exclusive STR instruction for 8 bit values.

Parameters
[in]valueValue to store
[in]ptrPointer to location
Returns
0 Function succeeded
1 Function failed
#define __STREXH (   value,
  ptr 
)    _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")

Executes a exclusive STR instruction for 16 bit values.

Parameters
[in]valueValue to store
[in]ptrPointer to location
Returns
0 Function succeeded
1 Function failed
#define __STREXW (   value,
  ptr 
)    _Pragma("push") _Pragma("diag_suppress 3731") __strex(value, ptr) _Pragma("pop")

Executes a exclusive STR instruction for 32 bit values.

Parameters
[in]valueValue to store
[in]ptrPointer to location
Returns
0 Function succeeded
1 Function failed
#define __UNALIGNED_UINT16_READ (   addr)    (*((const __packed uint16_t *)(addr)))
#define __UNALIGNED_UINT16_WRITE (   addr,
  val 
)    ((*((__packed uint16_t *)(addr))) = (val))
#define __UNALIGNED_UINT32_READ (   addr)    (*((const __packed uint32_t *)(addr)))
#define __UNALIGNED_UINT32_WRITE (   addr,
  val 
)    ((*((__packed uint32_t *)(addr))) = (val))
#define __USAT   __usat

Saturates an unsigned value.

Parameters
[in]valueValue to be saturated
[in]satBit position to saturate to (0..31)
Returns
Saturated value
#define CMSIS_DEPRECATED   __attribute__((deprecated))

Function Documentation

__STATIC_INLINE uint32_t __get_mode ( void  )
Returns
Processor Mode
__STATIC_INLINE __ASM uint32_t __get_SP ( void  )
Returns
Stack Pointer
__STATIC_INLINE __ASM uint32_t __get_SP_usr ( void  )
Returns
USR/SYSStack Pointer
__STATIC_INLINE __ASM void __set_mode ( uint32_t  mode)
Parameters
[in]modeMode value to set