NETWORK@FRSAC11.BITNET (12/21/87)
Date: 21 December 1987, 13:09:03 GMT From: NETWORK at FRSAC11 To: SCHEME at MC.LCS To everybody concerned by Scheme on the Atari ST: To my knowledge there is no native Scheme on this computer. If you run a Mac emulator (Aladin or Magic Sac) then you can use MacScheme. If you run PC Ditto then you can run TI PC Scheme. (I would be most interested to hear about the speed of this combo.) Why there is no MIT's CScheme on the Atari: memory. When I get 4 meg (no less) of memory on my ST, I will port CScheme 6.1 or whatever is available at this time. Last year I have spend a lot of time porting 4.1 on my 1040, up to the point where the microcode compiled, using MWC 1.0. It is a lot of trouble because there is some code in Scheme that is dependent upon C int = 32 bits. But 1Meg is not enough to run CScheme. If I try again, it will be with Lattice 3.04. Some people are currently writing new Scheme implementations, if they are portable, in C preferably, then we may end up with a working version quite soon, if we can have the sources on the ST. An other possibility is to start from XLISP, and change it from CommonLisp to Scheme, I looked at the code, it is quite easy. The problem is the speed of this implementation is not very good at all... The last possibility would be to use Vincennes Scheme, it should run on 2meg of memory, compiled with the Lattice C. There is currently some technical problems to get the sources, and I still dont know what is the Policy about this code. (Private, Copyrighted, public domain or else...) Keep on Scheming. Jean-Pierre H. Dumas network@frsac11 (bitnet) network%frsac11.bitnet@mitvma.mit.edu (arpanet) dumas@sumex-aim.stanford.edu (arpanet)