Read and write I/O ports

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Read and write I/O ports

7 comments. Current rating: 3 stars

(3 votes). Leave comments and/ or rate it.

In Borland Pascal and Delphi 1, there is a predefined pseudo variable Port.

In the 32bit versions of Delphi you need 2 lines of assembler code..


	function InPort(PortAddr:word): byte; {$IFDEF WIN32} assembler; stdcall; asm mov dx,PortAddr in al,dx end; {$else} begin Result := Port[PortAddr]; end; {$ENDIF}

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Comments:

2006-03-04, 10:54:14

anonymous from Bosnia and Herzegovina

something I was looking for

2006-08-27, 09:29:56

anonymous from Iran

what must I do next? I mean in the place of PortAddr what must be replaced?

2006-08-27, 10:02:25

[hidden] from Iran

I want to read data from female port in windows xp and in delphi what must I do?

2006-11-15, 08:28:53

HUNTER from China

READING DATA FROM PORT?

2006-12-13, 03:05:11

hunter from China

you application must runing of the ring0

2007-03-18, 16:13:43

same from Lithuania

not usefull

2012-01-17, 10:35:20

ricky.spl@gmail.com from South Africa

HI
I have delphi 4 and i want to to write a simple program to read the microphone and play the sound at the same time to a speaker. I am a beginer in programming please help.

Please reply by email: ricky.spl@gmail.com

Thanks
Ricky

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