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Compiler Reference Guide
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__align
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Function attributes
__attribute__((alias)) function attribute
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__attribute__((constructor[(priority)])) function
__attribute__((deprecated)) function attribute
__attribute__((destructor[(priority)])) function a
__attribute__((format_arg(string-index))) function
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__attribute__((weak)) function attribute
__attribute__((weakref("target"))) funct
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Variable attributes
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__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
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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
__pld intrinsic
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| Home > Compiler-specific Features > __pld intrinsic | |||
This intrinsic inserts a data prefetch, for example PLD,
into the instruction stream generated by the compiler. It enables
you to signal to the memory system from your C or C++ program that a
data load from an address is likely in the near future.
Syntaxvoid __pld(...)
where:
...denotes any number of pointer or integer arguments specifying addresses of memory to prefetch.
If the target architecture does not support data prefetching,
the compiler generates neither a PLD instruction nor
a NOP instruction, but ignores the intrinsic.
extern int data1;
extern int data2;
volatile int *interrupt = (volatile int *)0x8000;
volatile int *uart = (volatile int *)0x9000;
void get(void)
{
__pld(data1, data2);
while (!*interrupt);
*uart = data1; // trigger uart as soon as interrupt occurs
*(uart+1) = data2;
}
PLD, PLDW, and PLI in the Assembler Reference.
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0376D |
| Non-Confidential | ID062912 |
 PDF version | |
| Home > Compiler-specific Features > __pld intrinsic |
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