Added addressing mode binary conversionHEADmaster

1 files changed, 107 insertions, 107 deletions

diff --git a/syntax.lisp b/syntax.lisp
index 982397a..c8e11fd 100644
--- a/syntax.lisp
+++ b/syntax.lisp
@@ -20,116 +20,116 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 ;; Rules for the interpretation of lines.
 (defparameter
- *line-syntax*
- '(
-   (label
-	(lambda (l)
-	  (and (eq (last-char (first l)) #\:)
-		   (eq (length l) 1))))
-   (label-instruction
-	(lambda (l)
-	  (and (eq (last-char (first l)) #\:)
-		   (member (read-from-string (second l)) *opcodes*))))
-   (attribute
-	(lambda (l)
-	  (and (equal (char (first l) 0) #\.)
-		   (not (equal (first l) ".WORD")))))
-   (word
-	(lambda (l)
-	  (and (equal (char (first l) 0) #\.)
-		   (equal (first l) ".WORD"))))
-   (instruction
-	(lambda (l)
-	  (member (read-from-string (first l)) *opcodes*)))
-   (macro
-	(lambda (l)
-	  (equal (second l) "=")))   
-   (unknown
-	(lambda (l)
-	  t))))
+	*syntax-line*
+  '(
+	(label
+	 (lambda (l)
+	   (and (eq (last-char (first l)) #\:)
+			(eq (length l) 1))))
+	(label-instruction
+	 (lambda (l)
+	   (and (eq (last-char (first l)) #\:)
+			(member (read-from-string (second l)) *opcodes*))))
+	(attribute
+	 (lambda (l)
+	   (and (equal (char (first l) 0) #\.)
+			(not (equal (first l) ".WORD")))))
+	(word
+	 (lambda (l)
+	   (and (equal (char (first l) 0) #\.)
+			(equal (first l) ".WORD"))))
+	(instruction
+	 (lambda (l)
+	   (member (read-from-string (first l)) *opcodes*)))
+	(macro
+	 (lambda (l)
+	   (equal (second l) "=")))   
+	(unknown
+	 (lambda (l)
+	   t))))
 
 ;; Rules for identifying addressing modes.
 (defparameter
- *addressing-modes-syntax*
- '((immediate ; #?? ... more complex syntax rules for later
-	(lambda (s)
-	  (eq "#" (subseq s 0 1))))
-   (absolute ;"$????"
-	(lambda (s)
-	  (and
-	   (equal (length s) 5)
-	   (equal "$" (subseq s 0 1))
-	   (hexd? (subseq s 1 5)))))
-   (zero-page ;"$??"
-	(lambda (s)
-	  (and
-	   (equal (length s) 3)
-	   (equal "$" (subseq s 0 1))
-	   (hexd? (subseq s 1 3)))))
-   (implied nil)
-   (indirect-absolute ;($????)
-	(lambda (s)
-	  (and
-	   (equal (length s) 7)
-	   (equal "($" (subseq s 0 2))
-	   (hexd? (subseq s 1 5))
-	   (equal ")" (subseq s 5 6)))))
-   (absolute-indexed-x ;"$????,X"
-	(lambda (s)
-	  (and
-	   (equal (length s) 7)
-	   (equal "$" (subseq s 0 1))
-	   (hexd? (subseq s 1 5))
-	   (equal ",X" (subseq s 5 7)))))
-   (absolute-indexed-y ;"$????,Y"
-	(lambda (s)
-	  (and
-	   (equal (length s) 7)
-	   (equal "$" (subseq s 0 1))
-	   (hexd? (subseq s 1 5))
-	   (equal ",Y" (subseq s 5 7)))))
-   (zero-page-indexed-x ;"$??,X"
-	(lambda (s)
-	  (and
-	   (equal (length s) 5)
-	   (equal (subseq s 0 1) "$")
-	   (hexd? (subseq s 1 3))
-	   (equal (subseq s 3 5) ",X"))))
-   (zero-page-indexed-y ;"$??,Y"
-	(lambda (s)
-	  (and
-	   (equal (length s) 5)
-	   (equal (subseq s 0 1) "$")
-	   (hexd? (subseq s 1 3))
-	   (equal (subseq s 3 5) ",Y"))))
-   (indexed-indirect ;"($??,X)"
-	(lambda (s)
-	  (and
-	   (equal (length s) 7)
-	   (equal (subseq s 0 2) "($")
-	   (hexd? (subseq s 2 4))
-	   (equal (subseq s 4 7) ",X)"))))
-   (indirect-indexed ;"($??),Y"
-	(lambda (s)
-	  (and
-	   (equal (length s) 7)
-	   (equal (subseq s 0 2) "($")
-	   (hexd? (subseq s 2 4))
-	   (equal (subseq s 4 7) "),Y"))))
-   ;;How to fix that relative and absolute are the same rule?
-   ;;A check upstream would suffice.
-   (relative ;"$????"
-	(lambda (s)
-	  (and
-	   (equal (length s) 5)
-	   (equal (subseq s 0 1) "$")
-	   (hexd? (subseq s 1 5)))))
-   (accumulator ;"A"
-	(lambda (s)
-	  (and
-	   (equal (length s) 1)
-	   (equal "A" (subseq s 0 1)))))))
-
+	*syntax-addressing-modes*
+  '((immediate ; #??
+	 (lambda (s)
+	   (eq "#" (subseq s 0 1))))
+	(absolute ;"$????"
+	 (lambda (s)
+	   (and
+		(equal (length s) 5)
+		(equal "$" (subseq s 0 1))
+		(hexd? (subseq s 1 5)))))
+	(zero-page ;"$??"
+	 (lambda (s)
+	   (and
+		(equal (length s) 3)
+		(equal "$" (subseq s 0 1))
+		(hexd? (subseq s 1 3)))))
+	(implied nil)
+	(indirect-absolute ;($????)
+	 (lambda (s)
+	   (and
+		(equal (length s) 7)
+		(equal "($" (subseq s 0 2))
+		(hexd? (subseq s 1 5))
+		(equal ")" (subseq s 5 6)))))
+	(absolute-indexed-x ;"$????,X"
+	 (lambda (s)
+	   (and
+		(equal (length s) 7)
+		(equal "$" (subseq s 0 1))
+		(hexd? (subseq s 1 5))
+		(equal ",X" (subseq s 5 7)))))
+	(absolute-indexed-y ;"$????,Y"
+	 (lambda (s)
+	   (and
+		(equal (length s) 7)
+		(equal "$" (subseq s 0 1))
+		(hexd? (subseq s 1 5))
+		(equal ",Y" (subseq s 5 7)))))
+	(zero-page-indexed-x ;"$??,X"
+	 (lambda (s)
+	   (and
+		(equal (length s) 5)
+		(equal (subseq s 0 1) "$")
+		(hexd? (subseq s 1 3))
+		(equal (subseq s 3 5) ",X"))))
+	(zero-page-indexed-y ;"$??,Y"
+	 (lambda (s)
+	   (and
+		(equal (length s) 5)
+		(equal (subseq s 0 1) "$")
+		(hexd? (subseq s 1 3))
+		(equal (subseq s 3 5) ",Y"))))
+	(indexed-indirect ;"($??,X)"
+	 (lambda (s)
+	   (and
+		(equal (length s) 7)
+		(equal (subseq s 0 2) "($")
+		(hexd? (subseq s 2 4))
+		(equal (subseq s 4 7) ",X)"))))
+	(indirect-indexed ;"($??),Y"
+	 (lambda (s)
+	   (and
+		(equal (length s) 7)
+		(equal (subseq s 0 2) "($")
+		(hexd? (subseq s 2 4))
+		(equal (subseq s 4 7) "),Y"))))
+	;;How to fix that relative and absolute are the same rule?
+	;;A check upstream would suffice.
+	(relative ;"$????"
+	 (lambda (s)
+	   (and
+		(equal (length s) 5)
+		(equal (subseq s 0 1) "$")
+		(hexd? (subseq s 1 5)))))
+	(accumulator ;"A"
+	 (lambda (s)
+	   (and
+		(equal (length s) 1)
+		(equal "A" (subseq s 0 1)))))))
+	
 (defun syntax-rule (line list)
   "Apply a syntax rule against a delimited line from a program."
   (dolist (i (extract-keys list))