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* fix #40421: implement assembly variants of the SwapEndian functions for Aarch64

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Sven/Sarah Barth 2023-09-08 15:03:51 +02:00
parent 98fc58b229
commit 30a1cde7a5
1 changed files with 43 additions and 0 deletions
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43
rtl/aarch64/aarch64.inc
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@ -480,3 +480,46 @@ asm
end; end;
{$endif} {$endif}
{****************************************************************************
Math Routines
****************************************************************************}
{$define FPC_SYSTEM_HAS_SWAPENDIAN}
function SwapEndian(const AValue: SmallInt): SmallInt; assembler; nostackframe;
asm
rev16 w0, w0
end;
function SwapEndian(const AValue: Word): Word; assembler; nostackframe;
asm
rev16 w0, w0
end;
function SwapEndian(const AValue: LongInt): LongInt; assembler; nostackframe;
asm
rev32 x0, x0
end;
function SwapEndian(const AValue: DWord): DWord; assembler; nostackframe;
asm
rev32 x0, x0
end;
function SwapEndian(const AValue: Int64): Int64; assembler; nostackframe;
asm
rev x0, x0
end;
function SwapEndian(const AValue: QWord): QWord; assembler; nostackframe;
asm
rev x0, x0
end;