6 files changed, 196 insertions, 0 deletions
diff --git a/system/atari800_os++/README b/system/atari800_os++/README
new file mode 100644
index 0000000000..c9ec751ac8
--- /dev/null
+++ b/system/atari800_os++/README
@@ -0,0 +1,27 @@
+OS++ is an Open Source rewrite of the ROM operating system for the Atari
+XL/XE 8-bit computers, capable of running many games and other programs for
+the Atari.
+
+OS++ also includes its own DOS, which is capable of running most
+disk-based software that works with Atari DOS 2.0S. OS++ DOS is only
+booted if the disk image in drive 1 is not bootable, so it won't conflict
+with bootable DOS disks.
+
+OS++ is written in 6502 assembler. You will need cc65 installed to build
+this package (though not to run it). cc65 is available at SlackBuilds.org
+
+This version of OS++ has been slightly modified to work with the Atari800
+emulator. See /usr/doc/os++-20070109/README.atari800 for more information.
+
+If you have the SlackBuilds.org atari800_roms and atari800_os++ packages
+installed, you can adjust the symlink at /usr/share/atari800/atarixl.rom
+to choose which OS will run (or, edit ~/.atari800.cfg, or run atari800
+with the -xlxe_rom option).
+
+Note: OS++ only replaces the OS ROM. If you want to run BASIC programs,
+you will still need an Atari BASIC image, or a freeware/PD BASIC
+interpreter such as Turbo BASIC XL.
+
+If you'd rather use the original ROMs, install atari800_roms instead
+of this package (or in addition to it, and change the symlink at
+/usr/share/atari800/atarixl.rom as desired).
diff --git a/system/atari800_os++/README.atari800 b/system/atari800_os++/README.atari800
new file mode 100644
index 0000000000..1d03af498d
--- /dev/null
+++ b/system/atari800_os++/README.atari800
@@ -0,0 +1,23 @@
+
+This copy of OS++ has been slightly modified to allow it to work with
+the Atari800 emulator. Specifically, Atari800 patches the operating
+system ROM to support high-speed emulated disk I/O. Unfortunately,
+when this is done, OS++'s checksum routines correctly detect that the
+ROM checksum doesn't match, and the OS doesn't start.
+
+The *correct* way to fix this is to make Atari800's ROM patch actually
+update the stored checksum after patching. For Atari800 2.1.0 and
+previous, the workaround is to replace OS++'s checksum calls with NOPs,
+which is what's been done to this copy of OS++ (future versions of
+Atari800 will hopefully have proper support for OS++)
+
+Note that OS++ only works correctly with Atari800 if the emulator's
+high-speed SIO patch is enabled. Without the fast SIO patch, OS++ can't
+read the emulated disk drives. Most likely, this is due to Atari800 not
+emulating the hardware 100% perfectly.
+
+Also, this is documented elsewhere, but worth a mention here, too: OS++
+does not include BASIC! Machine language programs normally don't call
+the BASIC cartridge, so they will be unaffected. If you want to be able
+to run BASIC without using the copyrighted Atari BASIC ROM, try the
+excellent public domain Turbo BASIC XL.
diff --git a/system/atari800_os++/atari800_os++.SlackBuild b/system/atari800_os++/atari800_os++.SlackBuild
new file mode 100644
index 0000000000..6716bac0cb
--- /dev/null
+++ b/system/atari800_os++/atari800_os++.SlackBuild
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# Slackware build script for OS++
+
+# Written by B. Watson (yalhcru@gmail.com)
+# Modified by the SlackBuilds.org project.
+
+PRGNAM=atari800_os++
+VERSION=${VERSION:-20080924}
+ARCH=noarch # actually it's m6502 :)
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+SRCNAM=os++
+PRGDIR=osrom
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGDIR
+tar xvf $CWD/$SRCNAM-$VERSION.tar.gz
+cd $PRGDIR
+chown -R root:root .
+
+patch -p1 < $CWD/omit_checksum.diff
+make osdist OMIT_CHECKSUM=1
+
+mkdir -p $PKG/usr/share/atari800/$PRGNAM
+cp osdist $PKG/usr/share/atari800/$PRGNAM/os++.rom
+
+( cd $PKG/usr/share/atari800; ln -s $PRGNAM/os++.rom atarixl.rom )
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp README.* $PKG/usr/doc/$PRGNAM-$VERSION
+cp $CWD/README.atari800 $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.tgz
diff --git a/system/atari800_os++/atari800_os++.info b/system/atari800_os++/atari800_os++.info
new file mode 100644
index 0000000000..a5cca99e5c
--- /dev/null
+++ b/system/atari800_os++/atari800_os++.info
@@ -0,0 +1,8 @@
+PRGNAM="atari800_os++"
+VERSION="20080924"
+HOMEPAGE="http://www.math.tu-berlin.de/~thor/atari++/"
+DOWNLOAD="http://slackbuilds.org/sources/12.2/os++-20080924.tar.gz"
+MD5SUM="5375b169767e930641e21d992c86ae21"
+MAINTAINER="B. Watson"
+EMAIL="yalhcru@gmail.com"
+APPROVED="dsomero"
diff --git a/system/atari800_os++/omit_checksum.diff b/system/atari800_os++/omit_checksum.diff
new file mode 100644
index 0000000000..640f6a085e
--- /dev/null
+++ b/system/atari800_os++/omit_checksum.diff
@@ -0,0 +1,70 @@
+diff -Naur osrom/makefile osrom.patched/makefile
+--- osrom/makefile	2008-09-05 17:51:11.000000000 -0400
++++ osrom.patched/makefile	2009-04-17 19:58:05.000000000 -0400
+@@ -23,6 +23,9 @@
+ CC		=	cc
+ DIR		=	osrom/
+ 
++ifdef OMIT_CHECKSUM
++	AFLAGS+=-DOMIT_CHECKSUM
++endif
+ 
+ OSSOURCES	=	charmap intlmap \
+ 			kernel reset nmi irq diskinterf sio cio misc \
+@@ -43,7 +43,7 @@
+ 
+ rom850	:	prehandlerrom1 prehandlerrom2 reloc loader
+ 	@ $(ECHO) "Preparing the loader relocatable"
+-	@ reloc prehandlerrom1 prehandlerrom2 relocation
++	@ ./reloc prehandlerrom1 prehandlerrom2 relocation
+ 	@ dd if=loader count=1 bs=256 conv=sync | cat - relocation > boot850
+ 	@ rm loader relocation prehandlerrom2
+ 	@ cp prehandlerrom1 rom850
+@@ -51,7 +51,7 @@
+ osrom	:	prerom checksum
+ 	@ $(ECHO) "Combining ROM sources..."
+ 	@ cp prerom osrom
+-	@ checksum osrom
++	@ ./checksum osrom
+ 
+ #
+ # Use the following make target for the official os++ distribution
+@@ -59,7 +59,7 @@
+ osdist	:	prerom checksum
+ 	@ $(ECHO) "Combining ROM sources..."
+ 	@ cp prerom osdist
+-	@ checksum osdist
++	@ ./checksum osdist
+ 
+ prerom	:	$(OSOBJECTS) $(INCLUDES) $(OSCONFIG)
+ 	@ $(ECHO) "Linking..."
+@@ -88,7 +88,7 @@
+ %.dump	:	% bintohex
+ 	@ $(ECHO) "Converting" $* "to" $*.dump
+ 	@ echo "unsigned char" $*"[] = " >$*.dump
+-	@ bintohex <$* >>$*.dump
++	@ ./bintohex <$* >>$*.dump
+ 
+ checksum:	checksum.c
+ 	@ $(ECHO) "Compling the checksum program"
+diff -Naur osrom/romtest.asm osrom.patched/romtest.asm
+--- osrom/romtest.asm	2006-05-21 11:23:11.000000000 -0400
++++ osrom.patched/romtest.asm	2009-04-17 19:58:54.000000000 -0400
+@@ -18,8 +18,17 @@
+ 	
+ 	.segment  "RomTest"
+ 
++	.ifdef OMIT_CHECKSUM
++	nop
++	nop
++	nop
++	nop
++	nop
++	nop
++	.else
+ 	jmp RomSumLo
+ 	jmp RomSumHi
++	.endif
+ 	jmp VectorInit
+ 	
+ 	;; imported for internal use only
diff --git a/system/atari800_os++/slack-desc b/system/atari800_os++/slack-desc
new file mode 100644
index 0000000000..eef5564cd4
--- /dev/null
+++ b/system/atari800_os++/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.  Line
+# up the first '|' above the ':' following the base package name, and the '|'
+# on the right side marks the last column you can put a character in.  You must
+# make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':'.
+
+             |-----handy-ruler------------------------------------------------------|
+atari800_os++: atari800_os++ (open source replacement for Atari XL/XE OS)
+atari800_os++:
+atari800_os++: OS++ is an Open Source rewrite of the ROM operating system for the
+atari800_os++: Atari XL/XE 8-bit computers, capable of running many games and other
+atari800_os++: programs for the Atari.
+atari800_os++:
+atari800_os++:
+atari800_os++:
+atari800_os++:
+atari800_os++:
+atari800_os++: