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From: jdb@reef.cis.ufl.edu (Brian K. W. Hook)
Newsgroups: comp.os.msdos.programmer
Subject: Using DOS INT21 to read from a file
Message-ID: <26647@uflorida.cis.ufl.EDU>
Date: 3 Feb 91 19:12:05 GMT
Sender: news@uflorida.cis.ufl.EDU
Organization: UF CIS Dept.
Lines: 23

I am using TASM and TC++ to try and read from a file in section of code
of mine.  I am using inline assembly....

char c[2];

asm {
	mov ah, 3FH
	mov bx, fhandle
	mov cx, 0001H
	mov dx, c
	int 21
}

Now fhandle is 0 for stdin, I am just trying to read a single character.
I want to use the DOS INT instead of read or fread since I want my code
as small as possible.

AX returns 86C0, which is REALLY wrong.  AX should be the number of bytes
read or at least an error code....what am I doing wrong?

Thanks,

Brian