Hi List

I've been trying to hack at Andrew Lentvorski's DS port of gambit, and update it.

If you are interested in looking at what has been done, you can grab the latest code from subversion:

http://bunny.jonnay.net/gambitnds/trunk/

For this to be brought back into the Gambit Scheme mainline branch, all my hackity-hacks around the makefile need to be properly added to the configure, and it needs to be updated to the main 4.2 branch.

The readme file follows: This is a hackjob. It's sad but true. Well, my part in this is a hackjob at any rate.

This project needs more then a few things done to really gain steam and kick ass: 1 - Better scheme<->libnds hooks This just takes time. 2 - A much easier way to build a full DS application strictly from within scheme, without the need of a glue c file Right now you need a very heafty C file to get everything working. check gsi/arm9/source/main.c for an example. The functions and definitions here need to move etiher A) into a scm file that can be included, or B) into the libgambc library itself. 3 - A way to build the libgambc.a without resorting to manually hacking the makefiles, hopefully just using configure I don't know enough about configure/autoconf/automake to even start... 4 - Update to gambit 4.2 5 - A much smaller libgambc if possible

Currently, I am working on 1 and 2.

Bootstrapping: -------------- - Install a VIRGIN gambitc v 4.20b, make and make install on your system. That should give you a 40b22 directory in /usr/local/Gambit-C. This is important, you need a working gambit toolchain and library for your development machine, as well as your target machine. - Install devkitpro - Might as well install PAlib as well. This step is not strictly needed. - Once you've done that, you can start building this version. Don't worry about the --prefix. The make file won't actually get far enough to the install process. :P - Try running "make" in the lib directory. If you get a libgambc.a when you're done, then you're cooking with gas. - I added a new target as well called "install-lib", it strips the libgambc library, and moves it to the devkitpro libnds dir. Its kinds dumb, and you will have to at the very least change the location of the strip executable. (likely more.) Either change this thing, or run strip and copy it manually. - If you didn't get a working libgambc, here are the steps I did to make a working version go. - There is a shell script called myBuild.sh. It sets important environment variables, and runs configure in almost just the right way to get a working libgambc. Edit it to set the path to devkitpro. - Edit the makefile in lib, and make sure the following thigns are set: FLAGS_OBJ = -DNDS -std=gnu99 -DUSE_DSWIFI -Wall -W -Wno-unused -Os -fno-math-errno -fschedule-insns2 -fno-trapping-math -fno-strict-aliasing -fwrapv -fexpensive-optimizations -fforce-addr -fpeephole2 -falign-jumps -falign-functions -fno-function-cse -ftree-copyrename -ftree-fre -ftree-dce -fregmove -fgcse-las -freorder-functions -fcaller-saves -fno-if-conversion2 -foptimize-sibling-calls -fcse-skip-blocks -funit-at-a-time -finline-functions -fmodulo-sched -freschedule-modulo-scheduled-loops -fomit-frame-pointer -fPIC -fno-common FLAGS_DYN = -specs=ds_arm7.specs -Wall -W -Wno-unused -Os -fno-math-errno -fschedule-insns2 -fno-trapping-math -fno-strict-aliasing -fwrapv -fexpensive-optimizations -fforce-addr -fpeephole2 -falign-jumps -falign-functions -fno-function-cse -ftree-copyrename -ftree-fre -ftree-dce -fregmove -fgcse-las -freorder-functions -fcaller-saves -fno-if-conversion2 -foptimize-sibling-calls -fcse-skip-blocks -funit-at-a-time -finline-functions -fmodulo-sched -freschedule-modulo-scheduled-loops -fomit-frame-pointer -fPIC -fno-common -rdynamic DEFS = -DHAVE_CONFIG -D___DEBUG LIBS = -lm -lc -lsysbase - I had to add os_tcp, os_debug files to the following vars: NORMAL_C NORMAL H NORMAL O NORMALO_PLUS NORMAL_O_COMMA MODULES_O_IN_COMPILE_ORDER - Finally I had to manually add targets for os_tcp and os_debug - Luckily all this is done for you in the makefile, so worse come to worse, just do a diff if you managed to whack everything. - I added a new target as well called "install-lib", it strips the libgambc library, and moves it to the devkitpro libnds dir. Its kinds dumb, and you will have to at the very least change the location of the strip executable. (likely more.) - Now you can make. You might have to copy the gsc executable from your virgin gambit-dir/gsc to the gsc directory here

Working with libgambc: ---------------------- Check out the gsi project. The original is also bundled with this project, but I wanted to update it with the more recent version of devkitpro. This project actually compiles, and almost-executes. It seems to get far, but not far enough (and it needs more work).

Additionally, look at thee-stack. This is an attempt to make an NDS application with scheme.

Standing on the shoulders of giants: ------------------------------------ Marc Feely - King of Gambit. Andrew Lentvorski - This is the man who laid in all the ground work.

Any work I did is merely embellishments and hackjobs. Jonathan Arkell jonnay@jonnay.net