mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 08:19:36 +01:00
61 lines
2.4 KiB
PHP
61 lines
2.4 KiB
PHP
{
|
|
$Id$
|
|
|
|
This file is part of the Free Pascal run time library.
|
|
Copyright (c) 1999-2000 by the Free Pascal development team
|
|
|
|
See the file COPYING.FPC, included in this distribution,
|
|
for details about the copyright.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
**********************************************************************}
|
|
TYPE
|
|
TDPMIRegisters = record
|
|
EDI, ESI, EBP, Reserved, EBX, EDX, ECX, EAX : longint;
|
|
Flags, ES, DS, FS, GS, IP, CS, SP, SS : word;
|
|
end;
|
|
|
|
|
|
|
|
Procedure RealIntr(IntNo : word; var Regs:TDPMIRegisters); assembler;
|
|
(*********************************************************************)
|
|
(* PROCEDURE RealModeInt(IntNo: word; Var Regs: TDPMIRegisters) *)
|
|
(* Calls the DPMI server to switch to real mode and call the *)
|
|
(* real mode interrupt. ALL MEMORY REGISTERS (if used) SHOULD *)
|
|
(* contain REAL MODE ADRESSES! *)
|
|
(* IntNo -> Real mode interrupt to call (0-255) *)
|
|
(* Regs -> Registers to pass on to interrupt. *)
|
|
(* (ALL UNUSED REGISTERS SHOULD BE SET TO 0 ON ENTRY!) *)
|
|
(*********************************************************************)
|
|
asm
|
|
PUSH BP { Save BP, just in case }
|
|
MOV BX,IntNo { Move the Interrupt number into BX }
|
|
XOR CX,CX { Clear CX }
|
|
LES DI,Regs { Load the registers into ES:DI }
|
|
MOV AX,$300 { Set function number to 300h }
|
|
INT $31 { Call Interrupt 31h - DPMI Services }
|
|
JC @Exit { Jump to exit on carry }
|
|
XOR AX,AX { Clear AX }
|
|
@Exit: { Exit label }
|
|
POP BP { Restore BP }
|
|
end;
|
|
|
|
{
|
|
$Log$
|
|
Revision 1.4 2000-02-09 16:59:28 peter
|
|
* truncated log
|
|
|
|
Revision 1.3 2000/01/07 16:41:31 daniel
|
|
* copyright 2000
|
|
|
|
Revision 1.2 2000/01/07 16:32:23 daniel
|
|
* copyright 2000 added
|
|
|
|
Revision 1.1 1999/11/08 11:15:21 peter
|
|
* move graph.inc to the target dir
|
|
|
|
}
|