Message-ID: <376464A3.3C5697FD@geocities.com>
From: Sahab Yazdani <beyonder69 AT geocities DOT com>
Organization: MASC Productions
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Subject: clipping a part of a bitmap...
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Date: Sun, 13 Jun 1999 22:10:43 -0400
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

This is probably easier with diagrams so:

lets say we have bitmap A:

******************************************
*                                        *
*                                        *
*                                        *
*                                        *
*                                        *
******************************************

now lets say we want to copy only a small part of it to another bitmap
like so:

******************************************
*                                        *          * - bigger bitmap
*      888888888888888888888888888       *          8 - copying portion
*      8                         8       *
*      888888888888888888888888888       *
*                                        *
******************************************

now heres the twist..   I want to do it in assembly.  
Unfortunately I'm not exactly any good at assembl and was hoping for
some instructions on how to do this.  I have managed to create your
standard DrawBitmap and DrawBitmapNoTransparency functions with a little
help from Allegro and a book.  But this one evades me.  If any kind soul
out there can help me with this I'd be eternally grateful (well, maybe
only for a week)...

Thanks in advance for any help you may be able to offer...