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+ added an asm implementation of FillWord for i8086 as well

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git-svn-id: trunk@25854 -
This commit is contained in:
nickysn 2013-10-26 16:52:57 +00:00
parent de2e4632c5
commit 85c8be531a
1 changed files with 26 additions and 0 deletions
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26
rtl/i8086/i8086.inc
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@ -46,6 +46,32 @@ asm
end;
{$endif FPC_SYSTEM_HAS_FILLCHAR}
{$ifndef FPC_SYSTEM_HAS_FILLWORD}
{$define FPC_SYSTEM_HAS_FILLWORD}
procedure FillWord(var x;count : SizeInt;value : word);assembler;nostackframe;
asm
mov bx, sp
mov cx, ss:[bx + 4 + extra_param_offset] // count
or cx, cx
jle @@Done
{$ifdef FPC_X86_DATA_NEAR}
mov di, ss:[bx + 6 + extra_param_offset] // @x
mov ax, ds
mov es, ax
{$else FPC_X86_DATA_NEAR}
les di, ss:[bx + 6 + extra_param_offset] // @x
{$endif FPC_X86_DATA_NEAR}
mov ax, ss:[bx + 2 + extra_param_offset] // value
{$ifdef FPC_ENABLED_CLD}
cld
{$endif FPC_ENABLED_CLD}
rep stosw
@@Done:
end;
{$endif FPC_SYSTEM_HAS_FILLWORD}
{$define FPC_SYSTEM_HAS_SPTR}
Function Sptr : Pointer;assembler;nostackframe;
asm