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- ;
- ; Command & Conquer Red Alert(tm)
- ; Copyright 2025 Electronic Arts Inc.
- ;
- ; This program is free software: you can redistribute it and/or modify
- ; it under the terms of the GNU General Public License as published by
- ; the Free Software Foundation, either version 3 of the License, or
- ; (at your option) any later version.
- ;
- ; 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. See the
- ; GNU General Public License for more details.
- ;
- ; You should have received a copy of the GNU General Public License
- ; along with this program. If not, see <http://www.gnu.org/licenses/>.
- ;
- ;****************************************************************************
- ;*
- ;* C O N F I D E N T I A L -- W E S T W O O D S T U D I O S
- ;*
- ;*---------------------------------------------------------------------------
- ;*
- ;* FILE
- ;* portio.asm
- ;*
- ;* DESCRIPTION
- ;* I/O Port access. (32-Bit protected mode)
- ;*
- ;* PROGRAMMER
- ;* Denzil E. Long, Jr.
- ;*
- ;* DATE
- ;* January 26, 1995
- ;*
- ;*---------------------------------------------------------------------------
- ;*
- ;* PUBLIC
- ;* inp - Read a byte from a hardware port.
- ;* outp - Write a byte to a hardware port.
- ;*
- ;****************************************************************************
- IDEAL
- P386
- MODEL USE32 FLAT
- LOCALS ??
- CODESEG
- ;****************************************************************************
- ;*
- ;* NAME
- ;* inp - Read a byte from a hardware port.
- ;*
- ;* SYNOPSIS
- ;* Data = inp(PortID)
- ;*
- ;* short inp(unsinged short);
- ;*
- ;* FUNCTION
- ;*
- ;* INPUTS
- ;* PortID - Address if hardware port.
- ;*
- ;* RESULT
- ;* Data - Data read from port.
- ;*
- ;****************************************************************************
- GLOBAL C inp:NEAR
- PROC inp C NEAR USES edx
- ARG port:WORD
- mov dx,[port]
- xor eax,eax
- in al,dx
- ret
- ENDP inp
- ;****************************************************************************
- ;*
- ;* NAME
- ;* outp - Write a byte to a hardware port.
- ;*
- ;* SYNOPSIS
- ;* outp(PortID, Value)
- ;*
- ;* void outp(unsinged short, short);
- ;*
- ;* FUNCTION
- ;*
- ;* INPUTS
- ;* PortID - Address if hardware port.
- ;* Value - Value to write.
- ;*
- ;* RESULT
- ;* NONE
- ;*
- ;****************************************************************************
- GLOBAL C outp:NEAR
- PROC outp C NEAR USES edx
- ARG port:WORD
- ARG value:WORD
- mov dx,[port]
- mov ax,[value]
- out dx,al
- ret
- ENDP outp
- END
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