JACAL / SCM Release Notes

Disk Space Requirements

When fully installed, this distribution occupies about 6.5 Megabytes of hard disk storage. Of that total, the optionally installed directories info\ and html\ consume 1 and 1.2 Megabytes, respectively.

Installed files and subdirectories

SCM.EXE: is SCM for 386, 486, etc. computers (needs EMS).
SCMLIT.EXE: is SCM for all MS-DOS computers (no floating point).
TURTLSCM.EXE: is SCM with turtle graphics for all MS-DOS computers.
WSCM.EXE: is SCM compiled for Windows 3.1.
JACAL.BAT: is a script which runs the JACAL math system.
JACALIT.BAT: is a script which runs the JACAL math system in SCMLIT.
INFO.EXE: is the `info' reader program.
info\: is a directory with online documentation of JACAL, SLIB, SCM, and Scheme.
info\DIR: is the catalog for the info reader.
html\: is a directory containing documentation in Hypertext (WWW) form.
scm\: is a directory containing source, initialization, and test files for SCM.
slib\: is a directory containing a Scheme Library.
jacal\: is a directory containing a symbolic mathematics system.

Files Included on Diskette 1 but not Installed

JACAL.PIF

Windows `PIF' for JACAL using SCM.EXE.

LAMBDA.ICO

Windows `icon' for JACAL.PIF.

LISP.E

Scheme (and lisp) mode for Lugaru's Epsilon editor.

SIMPLY.SCM

is code from:

Brian Harvey and Matthew Wright. `Simply Scheme: Introducing Computer Science' MIT Press, 1994 ISBN 0-262-08226-8

DOSINFO.ZIP

is source code for INFO.EXE.

JACAL

SCMLIT.EXE will barely run JACAL under MS-DOS; Make sure as much conventional memory is free as possible. To try it, type:

JACALIT

With 386 or later CPUs, SCM.EXE runs JACAL faster and without memory limitations. To run JACAL with SCM, type:

JACAL

Drivers and Environment Variables

SCM.EXE requires VCPI. VCPI is supplied by Windows; EMS device drivers like EMM386 (which comes with MS-DOS) also support VCPI.
If your 386 computer lacks a math co-processor, then the environment variable `EMU387' should be set to the full pathname where EMU387.DXE resides before using SCM.EXE. For example:
Before executing TURTLSCM, the environment variable `BGIDIR' should be set to the full pathname where the *.BGI drivers reside. For example:
Before using INFO.EXE, the environment variable `INFOPATH' should be set to the full pathname where the info files reside. For example:
Note: If you use the DEMACS editor, you can also view these info files using the command `M-x info'. Add the menu lines from info\DIR to the info\DIR which comes with DEMACS.

INSTALL creates a file `SCMEXEC.BAT' which contains the environment variable definitions appropriate to the pathnames installed to.

Release Notes

SCMLIT, TURTLSCM, and WSCM were compiled with Borland C++ 3.1. SCM.EXE was compiled with DJGPP version 2.1. DJGPP is available from http://www.delorie.com/.

The latest html documentation of JACAL, SLIB, Scheme, and SCM are available on WWW at http://swissnet.ai.mit.edu/~jaffer.

SCM, SLIB, and JACAL release notices are posted on Usenet Newsgroup: comp.lang.scheme

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jaffer@ai.mit.edu