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+ added extra_param_offset constant for accessing parameters in asm routines with nostackframe

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git-svn-id: trunk@24873 -
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nickysn 2013-06-11 21:08:43 +00:00
parent 980563d576
commit 5d4ebf0dca
1 changed files with 9 additions and 0 deletions
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9
rtl/msdos/system.pp
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@ -83,6 +83,15 @@ implementation
const const
fCarry = 1; fCarry = 1;
{ used for an offset fixup for accessing the proc parameters in asm routines
that use nostackframe. We can't use the parameter name directly, because
i8086 doesn't support sp relative addressing. }
{$ifdef FPC_X86_CODE_FAR}
extra_param_offset = 2;
{$else FPC_X86_CODE_FAR}
extra_param_offset = 0;
{$endif FPC_X86_CODE_FAR}
type type
PFarByte = ^Byte;far; PFarByte = ^Byte;far;
PFarChar = ^Char;far; PFarChar = ^Char;far;