mirror of
https://github.com/reactos/reactos.git
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b20613401f
Rewrite the VGA emulation. Nah, it's a joke! - Store VGA registers setup in VGA_REGISTERS structure. - Improve BiosSetVideoMode and introduce a VgaSetRegisters function for setting VGA regs. - Initialize Bda->CrtBasePort: it is used to determine the address of some I/O ports which depend on whether we are in color or monochrome mode. - Add UnregisterIoPort in io.c (and fix some DPRINTs) (needed for VGA). - When setting the misc. VGA register, check whether we're going to monochrome emulation, and reset some port addresses in that case. svn path=/branches/ntvdm/; revision=61246
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: ReactOS Virtual DOS Machine
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* FILE: io.c
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* PURPOSE: I/O Port Handlers
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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* Hermes Belusca-Maito (hermes.belusca@sfr.fr)
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*/
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#ifndef _IO_H_
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#define _IO_H_
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/* DEFINES ********************************************************************/
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#define EMULATOR_MAX_IOPORTS_NUM 0x10000
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/* FUNCTIONS ******************************************************************/
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typedef BYTE (WINAPI *EMULATOR_IN_PROC)(ULONG Port);
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typedef VOID (WINAPI *EMULATOR_OUT_PROC)(ULONG Port, BYTE Data);
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VOID WINAPI RegisterIoPort(ULONG Port,
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EMULATOR_IN_PROC InHandler,
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EMULATOR_OUT_PROC OutHandler);
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VOID WINAPI UnregisterIoPort(ULONG Port);
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VOID WINAPI EmulatorReadIo
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(
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PFAST486_STATE State,
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ULONG Port,
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PVOID Buffer,
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ULONG DataCount,
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UCHAR DataSize
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);
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VOID WINAPI EmulatorWriteIo
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(
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PFAST486_STATE State,
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ULONG Port,
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PVOID Buffer,
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ULONG DataCount,
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UCHAR DataSize
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);
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#endif // _IO_H_
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/* EOF */
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