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authoraleksei <aleksei@aj.org>2024-04-14 12:34:40 +1000
committeraleksei <aleksei@aj.org>2024-04-14 12:34:40 +1000
commit5fd0592e0bf449ec25392d2cb1b4c3b45b9cd718 (patch)
tree1d35eb657a2f67f9eae2dda1b236b83166d647f6 /macro.lisp
parent45045f2484f2eb88da587f98ec5c7fdeff672c94 (diff)
Some housekeeping
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+;; -*- mode: common-lisp -*-
+#|
+clasm-6502: An assembler for the 6502 written in Common Lisp.
+Copyright (C) 2024 Aleksei Eaves
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+|#
+
+#|
+To solve the problem of the colliding syntax rules
+We can test only the addressin modes we know the opcode to have
+This not only solves this problem, it just makes more sense.
+
+Need to use the existing lists to find keywords to watch out for during compilation.
+ESPECIALLY run through the output of macro-list to find collisions
+This owuld make it simple
+|#
+
+(defun macro-pass (program-list)
+ "Translate a programs macros"
+ (let ((macro-association-list
+ (let ((return-alist nil))
+ (dolist (i program-list)
+ (if (equal (syntax-rule (cadr i) *line-syntax*) 'macro)
+ (setf return-alist
+ (cons (list (first (cadr i)) (car (last (cadr i))))
+ return-alist))
+ nil))
+ return-alist))
+ (return-list nil))
+ ;; For every line in program list..
+ (dolist (i program-list)
+ ;; ..excluding the macro lines..
+ (if (eq (syntax-rule (cadr i) *line-syntax*) 'macro)
+ nil
+ ;; ..add to return list this value:
+ (setf return-list
+ (cons
+ ;; For every word in the line,
+ (let ((append-list nil))
+ (dolist (j (cadr i))
+ (setf append-list
+ ;; add it to the output line, and change whatever is a macro.
+ (cons (if (assoc j macro-association-list :test #'string=)
+ (cadr (assoc j macro-association-list :test #'string=))
+ j)
+ append-list)))
+ ;; Return the line number and program.
+ (cons (car i)
+ (list (reverse append-list))))
+ return-list))))
+ ;; Return everything.
+ (reverse return-list)))