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Compiler Reference Guide
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Keywords and operators
__align
__alignof__
__ALIGNOF__
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__forceinline
__global_reg
__inline
__int64
__INTADDR__
__irq
__packed
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__smc
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__weak
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__declspec attributes
__declspec(dllexport)
__declspec(dllimport)
__declspec(noinline)
__declspec(noreturn)
__declspec(nothrow)
__declspec(notshared)
__declspec(thread)
Function attributes
__attribute__((alias)) function attribute
__attribute__((always_inline)) function attribute
__attribute__((const)) function attribute
__attribute__((constructor[(priority)])) function
__attribute__((deprecated)) function attribute
__attribute__((destructor[(priority)])) function a
__attribute__((format_arg(string-index))) function
__attribute__((malloc)) function attribute
__attribute__((noinline)) function attribute
__attribute__((nomerge)) function attribute
__attribute__((nonnull)) function attribute
__attribute__((noreturn)) function attribute
__attribute__((notailcall)) function attribute
__attribute__((pcs("calling_convention")
__attribute__((pure)) function attribute
__attribute__((section("name"))) functio
__attribute__((unused)) function attribute
__attribute__((used)) function attribute
__attribute__((visibility("visibility_type&qu
__attribute__((weak)) function attribute
__attribute__((weakref("target"))) funct
Type attributes
__attribute__((bitband)) type attribute
__attribute__((aligned)) type attribute
__attribute((packed)) type attribute
__attribute__((transparent_union)) type attribute
Variable attributes
__attribute__((alias)) variable attribute
__attribute__((at(address))) variable attribute
__attribute__((aligned)) variable attribute
__attribute__((deprecated)) variable attribute
__attribute__((noinline)) constant variable attrib
__attribute__((packed)) variable attribute
__attribute__((section("name"))) variabl
__attribute__((transparent_union)) variable attrib
__attribute__((unused)) variable attribute
__attribute__((used)) variable attribute
__attribute__((visibility("visibility_type&qu
__attribute__((weak)) variable attribute
__attribute__((weakref("target"))) varia
__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
__strt intrinsic
| |||
| Home > Compiler-specific Features > __strt intrinsic | |||
This intrinsic inserts an assembly language instruction of
the form STR{size}T into the instruction stream generated
by the compiler. It enables you to store data to memory in your
C or C++ code using an STRT instruction.
Syntaxvoid __strt(unsigned intval, 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 20. Access widths supported by the __strt intrinsic
Instruction Size of data loaded C cast STRBTunsigned byte (char*)STRHTunsigned halfword (short int*)STRTword (int*)
The compiler does not recognize the __strt intrinsic
when compiling for a target that does not support the STRT instruction.
The compiler generates either a warning or an error in this case.
The __strt intrinsic does not support
access either to signed data or to doubleword data. The compiler
generates an error if you specify an access width that is not supported.
void foo(void)
{
int loc=0xff;
__strt(0x20, (volatile char *)loc);
}
Compiling this code produces:
||foo|| PROC MOV r0,#0xff MOV r1,#0x20 STRBT r1,[r0],#0 BX lr ENDP
LDR and STR, unprivileged in the Assembler Reference.
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0376D |
| Non-Confidential | ID062912 |
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| Home > Compiler-specific Features > __strt intrinsic |
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