I've noticed a few ad-hoc snippets of code to connect Slime to Allegro on Windows, and I thought that I should contribute my own.

The primary advantage of this code is that it does not use a fixed port, but rather makes use of the existing Slime infrastructure to communicate a port number through a temporary file. Also, as a result, Slime will automatically attempt to retry connecting when it fails, which is better than having to worry about race conditions and timing issues.

file load-slime.el:

;; This code derived from the Lisp in a Box project, hence the variable ;; names. The license for the project is the GPL.

(defvar lispbox-base-path "c:/lisp") ; or wherever

(defvar path-to-slime (concat lispbox-base-path "/slime")) (add-to-list 'load-path path-to-slime) (require 'slime) (slime-setup)

(defun lispbox-start-allegro-6.2 () (let ((runallegro-path (concat lispbox-base-path "/Allegro62/RunAllegro.bat"))) (delete-other-windows) (shell-command (format ""%s" %s &" runallegro-path (slime-swank-port-file))) (slime-read-port-and-connect-to-running-swank nil) (add-hook 'kill-emacs-hook (lambda () (slime-repl-sayoonara)))))

file (concat lispbox-base-path "/Allegro62/RunAllegro.bat"):

@ECHO OFF C: CD "\lisp" "C:\acl62\alisp.exe" +B +cm -L "C:/lisp/slime/swank-loader.lisp" -e '(swank:start-server "%1")'

Paths may have to be fiddled with, as appropriate.