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Initial revision: imported RGBDS source code

Browse Source 
The code comes from the RGBDS source and documentation zip files found
on this website:

http://www.otakunozoku.com/1999/08/01/rednex-gameboy-development-system/

The same website reports:

	"Best of all, it’s free! That’s right! Free! The executables
	are free to use, either for personal hobby use, or full blown
	commercial productions — I know of at least a dozen commercial
	games you can purchase that are written with RGBDS — and the
	source code is free to modify.

	"The only thing I ask is that you do not charge for either
	distributing the executables or source code, and any derivative
	works you give credit to the original authors of the tools.
	That means you have to say “Thanks” to the original authors
	SurfSmurf and Otaku."

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
This commit is contained in:
Carsten Sorensen
2009-06-11 06:00:24 +02:00
committed by Vegard Nossum
commit e895832b2b
103 changed files with 13891 additions and 0 deletions
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<TITLE>xAsm EQUS</TITLE>
</HEAD>
<BODY BGCOLOR="#692764" TEXT="#F5A0D8" LINK="#8AAEE6" VLINK="#2B9DA4" ALINK="#95F0DA">
<I><H2>EQUS</H2></I><HR>
<P>EQUS is used to define string-symbols. Wherever the assembler meets a string symbol its name is replaced with its value. If you are familiar with C you can think of it as the same as #define.<BR>
<BR>
<TABLE BORDER=0 BGCOLOR="Black" CELLPADDING=8 WIDTH="50%">
<TR>
<TD><FONT COLOR="#00FF00">
<PRE>COUNTREG EQUS "[hl+]"
ld a,COUNTREG</PRE>
</FONT></TD>
</TR>
</TABLE>
<P> (Note that : following the label-name is not allowed.)<BR>
<P>This will be interpreted as:<BR>
<TABLE BORDER=0 BGCOLOR="Black" CELLPADDING=8 WIDTH="50%">
<TR>
<TD><FONT COLOR="#00FF00">
<PRE> ld a,[hl+]</PRE>
</FONT></TD>
</TR>
</TABLE>
<P>String-symbols can also be used to define small one-line macros:<BR>
<TABLE BORDER=0 BGCOLOR="Black" CELLPADDING=8 WIDTH="50%">
<TR>
<TD><FONT COLOR="#00FF00">
<PRE>PUSHA EQUS "push af\npush bc\npush de\npush hl\n"</PRE>
</FONT></TD>
</TR>
</TABLE>
<P>Note that a colon (:) following the label-name is not allowed. String equates can't be exported or imported.<BR>
<H3>See also:</H3>
<UL>
<LI><A HREF="expr_str.htm">String expressions, functions and formatting</A>
</UL>
<BR><HR>
<FONT SIZE="-1"><I><P ALIGN=RIGHT>Last updated 21 June 1997 by <A HREF="mailto:surfsmurf@matilde.demon.co.uk">Carsten Sorensen</A></P></I></FONT>