From:	Derrick Early <early AT finite DOT nrl DOT navy DOT mil>
Subject:	inportb() to asm()
To:	djgpp AT sun DOT soe DOT clarkson DOT edu (djgpp)
Date:	Thu, 12 Jan 95 13:46:28 "EST
Mailer:	Elm [revision: 70.85]

I'm trying to replace the inportb() with inline asm.  This is my first 
attempt, so any help will be appreciated.  Here it goes.

  unsigned char data(SIZE);	
  unsigned char *data_ptr;
  unsigned short port;

  *data_ptr=inportb(port);
  
Is this equivalent to the following?

  unsigned char data(SIZE);	
  unsigned char *data_ptr;
  unsigned char port;

  asm(" inb	%1,%0"
      : "=r" (*data_ptr)
      : "r"  (port);
      
Thank you in advance.

Yours,

Derrick Early
early AT finite DOT nrl DOT navy DOT mil

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