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__align
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Function attributes
__attribute__((alias)) function attribute
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Variable attributes
__attribute__((alias)) variable attribute
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__attribute__((visibility("visibility_type&qu
__attribute__((weak)) variable attribute
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__attribute__((zero_init)) variable attribute
Pragmas
#pragma anon_unions, #pragma no_anon_unions
#pragma arm
#pragma arm section [section_type_list]
#pragma diag_default tag[,tag,...]
#pragma diag_error tag[,tag,...]
#pragma diag_remark tag[,tag,...]
#pragma diag_suppress tag[,tag,...]
#pragma diag_warning tag[, tag, ...]
#pragma exceptions_unwind, #pragma no_exceptions_u
#pragma hdrstop
#pragma import symbol_name
#pragma import(__use_full_stdio)
#pragma import(__use_smaller_memcpy)
#pragma inline, #pragma no_inline
#pragma no_pch
#pragma Onum
#pragma once
#pragma Ospace
#pragma Otime
#pragma pack(n)
#pragma pop
#pragma push
#pragma softfp_linkage, #pragma no_softfp_linkage
#pragma thumb
#pragma unroll [(n)]
#pragma unroll_completely
#pragma weak symbol, #pragma weak symbol1 = symbol
Instruction intrinsics
__breakpoint intrinsic
__cdp intrinsic
__clrex intrinsic
__clz intrinsic
__current_pc intrinsic
__current_sp intrinsic
__disable_fiq intrinsic
__disable_irq intrinsic
__enable_fiq intrinsic
__enable_irq intrinsic
__fabs intrinsic
__fabsf intrinsic
__force_stores intrinsic
__ldrex intrinsic
__ldrexd intrinsic
__ldrt intrinsic
__memory_changed intrinsic
__nop intrinsic
__pld intrinsic
__pldw intrinsic
__pli intrinsic
__promise intrinsic
__qadd intrinsic
__qdbl intrinsic
__qsub intrinsic
__rbit intrinsic
__rev intrinsic
__return_address intrinsic
__ror intrinsic
__schedule_barrier intrinsic
__semihost intrinsic
__sev intrinsic
__sqrt intrinsic
__sqrtf intrinsic
__ssat intrinsic
__strex intrinsic
__strexd intrinsic
__strt intrinsic
__swp intrinsic
__usat intrinsic
__wfe intrinsic
__wfi intrinsic
__yield intrinsic
ARMv6 SIMD intrinsics
ETSI basic operations
C55x intrinsics
VFP status intrinsic
__vfp_status intrinsic
Fused Multiply Add (FMA) intrinsics
Named register variables
Predefined macros
Built-in function name variables
C and C++ Implementation Details
Semihosting
ARMv6 SIMD Instruction Intrinsics
Via File Syntax
Standard C Implementation Definition
Standard C++ Implementation Definition
C and C++ Compiler Implementation Limits
Compiler Reference Guide
__strexd intrinsic
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| Home > Compiler-specific Features > __strexd intrinsic | |||
This intrinsic inserts an STREXD instruction
into the instruction stream generated by the compiler. It enables
you to use an STREXD instruction in your C or C++ code
to store data to memory. It supports exclusive stores of doubleword
data to memory.
Syntax
int __strexd(unsigned long long val, volatile void *ptr)
where:
valis the value to be written to memory.
ptrpoints to the address of the data to be written to in memory. To specify the size of the data to be written, cast the parameter to an appropriate integral type.
Table 19. Access widths supported by the
__strexdintrinsicInstruction Size of data stored C cast STREXDunsigned long long (unsigned long long*)STREXDsigned long long (signed long long*)
The __strexd intrinsic returns:
0if the
STREXDinstruction succeeds1if the
STREXDinstruction is locked out.
The compiler does not recognize the __strexd intrinsic
when compiling for a target that does not support the STREXD instruction.
The compiler generates either a warning or an error in this case.
The __strexd intrinsic only supports
access to doubleword data. The compiler generates an error if you
specify an access width that is not supported.
LDREX and STREX in the Assembler Reference.
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0376D |
| Non-Confidential | ID062912 |
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