mixal-mode.el synchronised with emacs's

1 files changed, 605 insertions, 814 deletions

diff --git a/misc/mixal-mode.el b/misc/mixal-mode.el
index a2eaafb..b9f6059 100644
--- a/misc/mixal-mode.el
+++ b/misc/mixal-mode.el
@@ -1,43 +1,45 @@
-;;; mixal-mode.el --- Major mode for the mix asm language.
+;;; mixal-mode.el --- Major mode for the mix asm language.  -*- lexical-binding:t -*-
 
-;; Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation
+;; Copyright (C) 2003-2020 Free Software Foundation, Inc.
 
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 3 of
-;; the License, or (at your option) any later version.
+;; Author: Pieter E.J. Pareit <pieter.pareit@gmail.com>
+;; Maintainer: Jose A Ortega Ruiz <jao@gnu.org>
+;; Created: 09 Nov 2002
+;; Version: 0.4
+;; Keywords: languages, Knuth, mix, mixal, asm, mixvm, The Art Of Computer Programming
 
-;; This program 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 General Public License for more details.
+;; This file is part of GNU Emacs.
 
-;; You should have received a copy of the GNU General Public
-;; License along with this program; if not, write to the Free
-;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
-;; MA 02110-1301 USA
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
 
-;; Author: Pieter E.J. Pareit <pieter.pareit@gmail.com>
-;; Maintainer: Pieter E.J. Pareit <pieter.pareit@gmail.com>
-;; Created: 09 Nov 2002
-;; Version: 0.1
-;; Keywords: Knuth mix mixal asm mixvm "The Art Of Computer Programming"
+;; GNU Emacs 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 General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 ;;; Commentary:
+
 ;; Major mode for the mix asm language.
 ;; The mix asm language is described in "The Art Of Computer Programming".
 ;;
-;; For optimal use, also use GNU MDK. Compiling needs mixasm, running
-;; and debugging needs mixvm and mixvm.el from GNU MDK. You can get
+;; For optimal use, also use GNU MDK.  Compiling needs mixasm, running
+;; and debugging needs mixvm and mixvm.el from GNU MDK.  You can get
 ;; GNU MDK from `https://savannah.gnu.org/projects/mdk/' and
-;; `ftp://ftp.gnu.org/pub/gnu/mdk'.
+;; `https://ftp.gnu.org/pub/gnu/mdk'.
 ;;
-;; To use this mode, place the following in your .emacs file:
+;; To use this mode, place the following in your init file:
 ;; `(load-file "/PATH-TO-FILE/mixal-mode.el")'.
+;;
 ;; When you load a file with the extension .mixal the mode will be started
-;; automatic. If you want to start the mode manual, use `M-x mixal-mode'.
-;; Font locking will work, the behavior of tabs is the same as emacs
-;; default behavior. You can compile a source file with `C-c c' you can
+;; automatically.  If you want to start the mode manually, use `M-x mixal-mode'.
+;; Font locking will work, the behavior of tabs is the same as Emacs's
+;; default behavior.  You can compile a source file with `C-c c' you can
 ;; run a compiled file with `C-c r' or run it in debug mode with `C-c d'.
 ;; You can get more information about a particular operation code by using
 ;; mixal-describe-operation-code or `C-h o'.
@@ -45,7 +47,18 @@
 ;; Have fun.
 
 ;;; History:
+;; Version 0.4:
+;; 16/10/20: Jose A Ortega Ruiz <jao@gnu.org>
+;;           Add missed instructions: SLB,SRB,JAE,JAO,JXE,JXO
 ;; Version 0.3:
+;; 12/10/05: Stefan Monnier <monnier@iro.umontreal.ca>
+;;           Use font-lock-syntactic-keywords to detect/mark comments.
+;;           Use [^ \t\n]+ to match the operand part of a line.
+;;           Drop mixal-operation-codes.
+;;           Build the mixal-operation-codes-alist immediately.
+;;           Use `interactive' in mixal-describe-operation-code.
+;;           Remove useless ".*$" at the end of some regexps.
+;;           Fix the definition of comment-start-skip.
 ;; 08/10/05: sync mdk and emacs cvs
 ;;           from emacs: compile-command and require-final-newline
 ;;           from mdk:   see version 0.2
@@ -68,21 +81,23 @@
 ;;; Key map
 (defvar mixal-mode-map
   (let ((map (make-sparse-keymap)))
-    (define-key map "\C-cc" 'compile)
-    (define-key map "\C-cr" 'mixal-run)
-    (define-key map "\C-cd" 'mixal-debug)
-    (define-key map "\C-ho" 'mixal-describe-operation-code)
+    (define-key map "\C-c\C-c" 'compile)
+    (define-key map "\C-c\C-r" 'mixal-run)
+    (define-key map "\C-c\C-d" 'mixal-debug)
+    (define-key map "\C-h\C-o" 'mixal-describe-operation-code)
     map)
   "Keymap for `mixal-mode'.")
-; (makunbound 'mixal-mode-map)
+;; (makunbound 'mixal-mode-map)
 
 ;;; Syntax table
 (defvar mixal-mode-syntax-table
   (let ((st (make-syntax-table)))
-    ; (modify-syntax-entry ?* "<" st)    we need to do a bit more to make
-    ; (modify-syntax-entry ?\n ">" st)    fontlocking for comments work
+    ;; We need to do a bit more to make fontlocking for comments work.
+    ;; See use of syntax-propertize-function.
+    ;; (modify-syntax-entry ?* "<" st)
+    (modify-syntax-entry ?\n ">" st)
     st)
-  "Syntax table for `dot-mode'.")
+  "Syntax table for `mixal-mode'.")
 
 (defvar mixal-font-lock-label-face 'font-lock-variable-name-face
   "Face name to use for label names.
@@ -99,49 +114,9 @@ value.")
 Default value is that of `font-lock-builtin-face', but you can modify its
 value.")
 
-(defvar mixal-operation-codes
-  '("NOP" "ADD" "FADD" "SUB" "FSUB" "MUL" "FMUL" "DIV" "FDIV" "NUM" "CHAR"
-    "HLT" "SLA" "SRA" "SLAX" "SRAX" "SLC" "SRC" "SLB" "SRB" "MOVE" "LDA" "LD1" "LD2" "LD3"
-    "LD4" "LD5" "LD6" "LDX" "LDAN" "LD1N" "LD2N" "LD3N" "LD4N" "LD5N" "LD6N"
-    "LDXN" "STA" "ST1" "ST2" "ST3" "ST4" "ST5" "ST6" "STX" "STJ" "STZ" "JBUS"
-    "IOC" "IN" "OUT" "JRAD" "JMP" "JSJ" "JOV" "JNOV"
-    "JL" "JE" "JG" "JGE" "JNE" "JLE"
-    "JAN" "J1N" "J2N" "J3N" "J4N" "J5N" "J6N" "JXN"
-    "JAZ" "J1Z" "J2Z" "J3Z" "J4Z" "J5Z" "J6Z" "JXZ"
-    "JAP" "J1P" "J2P" "J3P" "J4P" "J5P" "J6P" "JXP"
-    "JANN" "J1NN" "J2NN" "J3NN" "J4NN" "J5NN" "J6NN" "JXNN"
-    "JANZ" "J1NZ" "J2NZ" "J3NZ" "J4NZ" "J5NZ" "J6NZ" "JXNZ"
-    "JANP" "J1NP" "J2NP" "J3NP" "J4NP" "J5NP" "J6NP" "JXNP"
-    "JAE"                                            "JXE"
-    "JAO"                                            "JXO"
-    "INCA" "DECA" "ENTA" "ENNA" "INC1" "DEC1" "ENT1" "ENN1"
-    "INC2" "DEC2" "ENT2" "ENN2" "INC3" "DEC3" "ENT3" "ENN3" "INC4" "DEC4"
-    "ENT4" "ENN4" "INC5" "DEC5" "ENT5" "ENN5" "INC6" "DEC6" "ENT6" "ENN6"
-    "INCX" "DECX" "ENTX" "ENNX" "CMPA" "FCMP" "CMP1" "CMP2" "CMP3" "CMP4"
-    "CMP5" "CMP6" "CMPX")
-  "List of possible operation codes as strings.")
-; (makunbound 'mixal-operation-codes)
-
 (defvar mixal-assembly-pseudoinstructions
   '("ORIG" "EQU" "CON" "ALF" "END")
-  "List of possible assembly pseudoinstructions")
-
-;;; Font-locking:
-(defvar mixal-font-lock-keywords
-  `(("^\\([A-Z0-9a-z]+\\).*$"
-     (1 mixal-font-lock-label-face))
-    (,(regexp-opt mixal-operation-codes 'words)
-     . mixal-font-lock-operation-code-face)
-    (,(regexp-opt
-       mixal-assembly-pseudoinstructions 'words)
-     . mixal-font-lock-assembly-pseudoinstruction-face)
-    ("^[A-Z0-9a-z]*[ \t]+[A-ZO-9a-z]+[ \t]+\\(=.*=\\).*$"
-     (1 font-lock-constant-face))
-    ("^[A-Z0-9a-z]*[ \t]+[A-Z0-9a-z]+[ \t]+[A-Z0-9a-z,():+-\\*=\" ]*[\t]+\\(.*\\)$"
-     (1 font-lock-comment-face))
-    ("^\\*.*$" . font-lock-comment-face))
-  "Keyword highlighting specification for `mixal-mode'.")
-; (makunbound 'mixal-font-lock-keywords)
+  "List of possible assembly pseudoinstructions.")
 
 ;;;; Compilation
 ;; Output from mixasm is compatible with default behavior of emacs,
@@ -151,1175 +126,988 @@ value.")
 ;; Tabs works well by default.
 
 ;;;; Describe
-(defvar mixal-operation-codes-alist '()
-  "Alist that contains all the possible operation codes for mix.
-Each elt has the form (OP-CODE GROUP FULL-NAME C-BYTE F-BYTE DESCRIPTION EXECUTION-TIME)
-Where OP-CODE is the text of the opcode as an symbol, FULL-NAME is the human readable name
-as a string, C-BYTE is the operation code telling what operation is to be performed, F-BYTE holds
-an modification of the operation code which can be a symbol or a number, DESCRIPTION contains
-an string with a description about the operation code and EXECUTION-TIME holds info
-about the time it takes, number or string.")
-; (makunbound 'mixal-operation-codes-alist)
-
-(defun mixal-add-operation-code (op-code group full-name C-byte F-byte description execution-time)
-  "Add an operation code to the list that contains information about possible op code's."
-  (setq mixal-operation-codes-alist (cons (list op-code group full-name C-byte F-byte
-						description execution-time)
-					  mixal-operation-codes-alist )))
-
-;; now add each operation code
-
-(mixal-add-operation-code
- 'LDA 'loading "load A" 8 'field
- "Put in rA the contents of cell no. M.
+(defvar mixal-operation-codes-alist
+  ;; FIXME: the codes FADD, FSUB, FMUL, FDIV, JRAD, and FCMP were in
+  ;; mixal-operation-codes but not here.  They should probably be added here.
+  ;;
+  ;; We used to define this with a backquote and subexps like ,(+ 8 3) for
+  ;; better clarity, but the resulting code was too big and caused the
+  ;; byte-compiler to eat up all the stack space.  Even using
+  ;; `eval-when-compile' didn't help because the byte-compiler insists on
+  ;; compiling the code before evaluating it.
+  '((LDA loading "load A" 8 field
+         "Put in rA the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
 zeros to make a word."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'LDX 'loading "load X" 15 'field
- "Put in rX the contents of cell no. M.
+    (LDX loading "load X" 15 field
+         "Put in rX the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
 zeros to make a word."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'LD1 'loading "load I1" (+ 8 1) 'field
- "Put in rI1 the contents of cell no. M.
+    (LD1 loading "load I1" 9 field
+         "Put in rI1 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LD2 'loading "load I2" (+ 8 2) 'field
- "Put in rI2 the contents of cell no. M.
+    (LD2 loading "load I2" 10 field
+         "Put in rI2 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LD3 'loading "load I3" (+ 8 3) 'field
- "Put in rI3 the contents of cell no. M.
+    (LD3 loading "load I3" 11 field
+         "Put in rI3 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LD4 'loading "load I4" (+ 8 4) 'field
- "Put in rI4 the contents of cell no. M.
+    (LD4 loading "load I4" 12 field
+         "Put in rI4 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LD5 'loading "load I5" (+ 8 5) 'field
- "Put in rI5 the contents of cell no. M.
+    (LD5 loading "load I5" 13 field
+         "Put in rI5 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LD6 'loading "load I6" (+ 8 6) 'field
- "Put in rI6 the contents of cell no. M.
+    (LD6 loading "load I6" 14 field
+         "Put in rI6 the contents of cell no. M.
 Uses a + when there is no sign in subfield. Subfield is left padded with
-zeros to make a word. Index registers only have 2 bytes and a sign, Trying
-to set anything more that that will result in undefined behavior."
- 2)
+zeros to make a word. Index registers only have 2 bytes and a sign; trying
+to set anything more than that will result in undefined behavior."
+         2)
 
-(mixal-add-operation-code
- 'LDAN 'loading "load A negative" 16 'field
- "Put in rA the contents of cell no. M, with opposite sign.
+    (LDAN loading "load A negative" 16 field
+          "Put in rA the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LDXN 'loading "load X negative" 23 'field
- "Put in rX the contents of cell no. M, with opposite sign.
+    (LDXN loading "load X negative" 23 field
+          "Put in rX the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD1N 'loading "load I1 negative" (+ 16 1) 'field
- "Put in rI1 the contents of cell no. M, with opposite sign.
+    (LD1N loading "load I1 negative" 17 field
+          "Put in rI1 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD2N 'loading "load I2 negative" (+ 16 2) 'field
- "Put in rI2 the contents of cell no. M, with opposite sign.
+    (LD2N loading "load I2 negative" 18 field
+          "Put in rI2 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD3N 'loading "load I3 negative" (+ 16 3) 'field
- "Put in rI3 the contents of cell no. M, with opposite sign.
+    (LD3N loading "load I3 negative" 19 field
+          "Put in rI3 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD4N 'loading "load I4 negative" (+ 16 4) 'field
- "Put in rI4 the contents of cell no. M, with opposite sign.
+    (LD4N loading "load I4 negative" 20 field
+          "Put in rI4 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD5N 'loading "load I5 negative" (+ 16 5) 'field
- "Put in rI5 the contents of cell no. M, with opposite sign.
+    (LD5N loading "load I5 negative" 21 field
+          "Put in rI5 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'LD6N 'loading "load I6 negative" (+ 16 6) 'field
- "Put in rI6 the contents of cell no. M, with opposite sign.
+    (LD6N loading "load I6 negative" 22 field
+          "Put in rI6 the contents of cell no. M, with opposite sign.
 Uses a + when there is no sign in subfield, otherwise use the opposite sign.
 Subfield is left padded with zeros to make a word. Index registers only
-have 2 bytes and a sign, Trying to set anything more that that will result
+have 2 bytes and a sign; trying to set anything more than that will result
 in undefined behavior."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'STA 'storing "store A" 24 'field
- "Store in cell Nr. M the contents of rA.
+    (STA storing "store A" 24 field
+         "Store in cell Nr. M the contents of rA.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'STX 'storing "store X" 31 'field
- "Store in cell Nr. M the contents of rX.
+    (STX storing "store X" 31 field
+         "Store in cell Nr. M the contents of rX.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST1 'storing "store I1" (+ 24 1) 'field
- "Store in cell Nr. M the contents of rI1.
+    (ST1 storing "store I1" 25 field
+         "Store in cell Nr. M the contents of rI1.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST2 'storing "store I2" (+ 24 2) 'field
- "Store in cell Nr. M the contents of rI2.
+    (ST2 storing "store I2" 26 field
+         "Store in cell Nr. M the contents of rI2.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST3 'storing "store I3" (+ 24 3) 'field
- "Store in cell Nr. M the contents of rI3.
+    (ST3 storing "store I3" 27 field
+         "Store in cell Nr. M the contents of rI3.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST4 'storing "store I4" (+ 24 4) 'field
- "Store in cell Nr. M the contents of rI4.
+    (ST4 storing "store I4" 28 field
+         "Store in cell Nr. M the contents of rI4.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST5 'storing "store I5" (+ 24 5) 'field
- "Store in cell Nr. M the contents of rI5.
+    (ST5 storing "store I5" 29 field
+         "Store in cell Nr. M the contents of rI5.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ST6 'storing "store I6" (+ 24 6) 'field
- "Store in cell Nr. M the contents of rI6.
+    (ST6 storing "store I6" 30 field
+         "Store in cell Nr. M the contents of rI6.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The
 sign of the memory cell is not changed, unless it is part of the subfield.
 Because index registers only have 2 bytes and a sign, the rest of the bytes
 are assumed to be 0."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'STJ 'storing "store J" 32 'field
- "Store in cell Nr. M the contents of rJ.
+    (STJ storing "store J" 32 field
+         "Store in cell Nr. M the contents of rJ.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with bytes from a register. These
 bytes are taken beginning by the rightmost side of the register. The sign
 of rJ is always +, sign of the memory cell is not changed, unless it is
 part of the subfield. The default field for STJ is (0:2)."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'STZ 'storing "store zero" 33 'field
- "Store in cell Nr. M '+ 0'.
+    (STZ storing "store zero" 33 field
+         "Store in cell Nr. M `+ 0'.
 The modification of the operation code represents the subfield of the
 memory cell that is to be overwritten with zeros."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'ADD 'arithmetic "add" 1 'field
- "Add to A the contents of cell Nr. M.
+    (ADD arithmetic "add" 1 field
+         "Add to A the contents of cell Nr. M.
 Subfield is padded with zero to make a word.
 If the result is to large, the operation result modulo 1,073,741,823 (the
 maximum value storable in a MIX word) is stored in `rA', and the overflow
 toggle is set to TRUE."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'SUB 'arithmetic "subtract" 2 'field
- "Subtract to A the contents of cell Nr. M.
+    (SUB arithmetic "subtract" 2 field
+         "Subtract to A the contents of cell Nr. M.
 Subfield is padded with zero to make a word.
 If the result is to large, the operation result modulo 1,073,741,823 (the
 maximum value storable in a MIX word) is stored in `rA', and the overflow
 toggle is set to TRUE."
- 2)
+         2)
 
-(mixal-add-operation-code
- 'MUL 'arithmetic "multiply" 3 'field
- "Multiplies the contents of cell Nr. M with A, result is 10 bytes and stored in rA and rX.
+    (MUL arithmetic "multiply" 3 field
+         "Multiplies the contents of cell Nr. M with A, result is 10 bytes and stored in rA and rX.
 The sign is + if the sign of rA and cell M where the same, otherwise, it is -"
- 10)
+         10)
 
-(mixal-add-operation-code
- 'DIV 'arithmetic "divide" 4 'field
- "Both rA and rX are taken together and divided by cell Nr. M, quotient is placed in rA, remainder in rX.
+    (DIV arithmetic "divide" 4 field
+         "Both rA and rX are taken together and divided by cell Nr. M, quotient is placed in rA, remainder in rX.
 The sign is taken from rA, and after the divide the sign of rA is set to + when
-both the sign of rA and M where the same. Divide by zero and overflow of rA result
-in undefined behavior."
- 12)
+both the sign of rA and M where the same. Divide by zero and overflow of rA
+result in undefined behavior."
+         12)
 
-(mixal-add-operation-code
- 'ENTA 'address-transfer "enter A" 48 2
- "Literal value is stored in rA.
+    (ENTA address-transfer "enter A" 48
+          "Literal value is stored in rA.
 Indexed, stores value of index in rA."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENTX 'address-transfer "enter X" 55 2
- "Literal value is stored in rX.
+    (ENTX address-transfer "enter X" 55
+          "Literal value is stored in rX.
 Indexed, stores value of index in rX."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT1 'address-transfer "Enter rI1" (+ 48 1) 2
- "Literal value is stored in rI1.
+    (ENT1 address-transfer "Enter rI1" 49
+          "Literal value is stored in rI1.
 Indexed, stores value of index in rI1."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT2 'address-transfer "Enter rI2" (+ 48 2) 2
- "Literal value is stored in rI2.
+    (ENT2 address-transfer "Enter rI2" 50
+          "Literal value is stored in rI2.
 Indexed, stores value of index in rI2."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT3 'address-transfer "Enter rI3" (+ 48 3) 2
- "Literal value is stored in rI3.
+    (ENT3 address-transfer "Enter rI3" 51
+          "Literal value is stored in rI3.
 Indexed, stores value of index in rI3."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT4 'address-transfer "Enter rI4" (+ 48 4) 2
- "Literal value is stored in rI4.
+    (ENT4 address-transfer "Enter rI4" 52
+          "Literal value is stored in rI4.
 Indexed, stores value of index in rI4."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT5 'address-transfer "Enter rI5" (+ 48 5) 2
- "Literal value is stored in rI5.
+    (ENT5 address-transfer "Enter rI5" 53
+          "Literal value is stored in rI5.
 Indexed, stores value of index in rI5."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENT6 'address-transfer "Enter rI6" (+ 48 6) 2
- "Literal value is stored in rI6.
+    (ENT6 address-transfer "Enter rI6" 54
+          "Literal value is stored in rI6.
 Indexed, stores value of index in rI6."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENNA 'address-transfer "enter negative A" 48 3
- "Literal value is stored in rA with opposite sign.
+    (ENNA address-transfer "enter negative A" 48
+          "Literal value is stored in rA with opposite sign.
 Indexed, stores value of index in rA with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENNX 'address-transfer "enter negative X" 55 3
- "Literal value is stored in rX with opposite sign.
+    (ENNX address-transfer "enter negative X" 55
+          "Literal value is stored in rX with opposite sign.
 Indexed, stores value of index in rX with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN1 'address-transfer "Enter negative rI1" (+ 48 1) 3
- "Literal value is stored in rI1 with opposite sign.
+    (ENN1 address-transfer "Enter negative rI1" 49
+          "Literal value is stored in rI1 with opposite sign.
 Indexed, stores value of index in rI1 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN2 'address-transfer "Enter negative rI2" (+ 48 2) 3
- "Literal value is stored in rI2 with opposite sign.
+    (ENN2 address-transfer "Enter negative rI2" 50
+          "Literal value is stored in rI2 with opposite sign.
 Indexed, stores value of index in rI2 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN3 'address-transfer "Enter negative rI3" (+ 48 3) 3
- "Literal value is stored in rI3 with opposite sign.
+    (ENN3 address-transfer "Enter negative rI3" 51
+          "Literal value is stored in rI3 with opposite sign.
 Indexed, stores value of index in rI3 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN4 'address-transfer "Enter negative rI4" (+ 48 4) 3
- "Literal value is stored in rI4 with opposite sign.
+    (ENN4 address-transfer "Enter negative rI4" 52
+          "Literal value is stored in rI4 with opposite sign.
 Indexed, stores value of index in rI4 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN5 'address-transfer "Enter negative rI5" (+ 48 5) 3
- "Literal value is stored in rI5 with opposite sign.
+    (ENN5 address-transfer "Enter negative rI5" 53
+          "Literal value is stored in rI5 with opposite sign.
 Indexed, stores value of index in rI5 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'ENN6 'address-transfer "Enter negative rI6" (+ 48 6) 3
- "Literal value is stored in rI6 with opposite sign.
+    (ENN6 address-transfer "Enter negative rI6" 54
+          "Literal value is stored in rI6 with opposite sign.
 Indexed, stores value of index in rI6 with opposite sign."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INCA 'address-transfer "increase A" 48 0
- "Increase register A with the literal value of M.
+    (INCA address-transfer "increase A" 48
+          "Increase register A with the literal value of M.
 On overflow the overflow toggle is set."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INCX 'address-transfer "increase X" 55 0
- "Increase register X with the literal value of M.
+    (INCX address-transfer "increase X" 55
+          "Increase register X with the literal value of M.
 On overflow the overflow toggle is set."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC1 'address-transfer "increase I1" (+ 48 1) 0
- "Increase register I1 with the literal value of M.
+    (INC1 address-transfer "increase I1" 49
+          "Increase register I1 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC2 'address-transfer "increase I2" (+ 48 2) 0
- "Increase register I2 with the literal value of M.
+    (INC2 address-transfer "increase I2" 50
+          "Increase register I2 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC3 'address-transfer "increase I3" (+ 48 3) 0
- "Increase register I3 with the literal value of M.
+    (INC3 address-transfer "increase I3" 51
+          "Increase register I3 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC4 'address-transfer "increase I4" (+ 48 4) 0
- "Increase register I4 with the literal value of M.
+    (INC4 address-transfer "increase I4" 52
+          "Increase register I4 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC5 'address-transfer "increase I5" (+ 48 5) 0
- "Increase register I5 with the literal value of M.
+    (INC5 address-transfer "increase I5" 53
+          "Increase register I5 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'INC6 'address-transfer "increase I6" (+ 48 6) 0
- "Increase register I6 with the literal value of M.
+    (INC6 address-transfer "increase I6" 54
+          "Increase register I6 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DECA 'address-transfer "decrease A" 48 1
- "Decrease register A with the literal value of M.
+    (DECA address-transfer "decrease A" 48
+          "Decrease register A with the literal value of M.
 On overflow the overflow toggle is set."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DECX 'address-transfer "decrease X" 55 1
- "Decrease register X with the literal value of M.
+    (DECX address-transfer "decrease X" 55
+          "Decrease register X with the literal value of M.
 On overflow the overflow toggle is set."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC1 'address-transfer "decrease I1" (+ 48 1) 1
- "Decrease register I1 with the literal value of M.
+    (DEC1 address-transfer "decrease I1" 49
+          "Decrease register I1 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC2 'address-transfer "decrease I2" (+ 48 2) 1
- "Decrease register I2 with the literal value of M.
+    (DEC2 address-transfer "decrease I2" 50
+          "Decrease register I2 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC3 'address-transfer "decrease I3" (+ 48 3) 1
- "Decrease register I3 with the literal value of M.
+    (DEC3 address-transfer "decrease I3" 51
+          "Decrease register I3 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC4 'address-transfer "decrease I4" (+ 48 4) 1
- "Decrease register I4 with the literal value of M.
+    (DEC4 address-transfer "decrease I4" 52
+          "Decrease register I4 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC5 'address-transfer "decrease I5" (+ 48 5) 1
- "Decrease register I5 with the literal value of M.
+    (DEC5 address-transfer "decrease I5" 53
+          "Decrease register I5 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'DEC6 'address-transfer "decrease I6" (+ 48 6) 1
- "Decrease register I6 with the literal value of M.
+    (DEC6 address-transfer "decrease I6" 54
+          "Decrease register I6 with the literal value of M.
 The result is undefined when the result does not fit in
 2 bytes."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'CMPA 'comparison "compare A" 56 'field
- "Compare contents of A with contents of M.
+    (CMPA comparison "compare A" 56 field
+          "Compare contents of A with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome."
- 2)
-
+          2)
 
-(mixal-add-operation-code
- 'CMPX 'comparison "compare X" 63 'field
- "Compare contents of rX with contents of M.
+    (CMPX comparison "compare X" 63 field
+          "Compare contents of rX with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome."
- 2)
-
+          2)
 
-(mixal-add-operation-code
- 'CMP1 'comparison "compare I1" (+ 56 1) 'field
- "Compare contents of rI1 with contents of M.
+    (CMP1 comparison "compare I1" 57 field
+          "Compare contents of rI1 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
+          2)
 
-
-(mixal-add-operation-code
- 'CMP2 'comparison "compare I2" (+ 56 2) 'field
- "Compare contents of rI2 with contents of M.
+    (CMP2 comparison "compare I2" 58 field
+          "Compare contents of rI2 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
-
+          2)
 
-(mixal-add-operation-code
- 'CMP3 'comparison "compare I3" (+ 56 3) 'field
- "Compare contents of rI3 with contents of M.
+    (CMP3 comparison "compare I3" 59 field
+          "Compare contents of rI3 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
-
+          2)
 
-(mixal-add-operation-code
- 'CMP4 'comparison "compare I4" (+ 56 4) 'field
- "Compare contents of rI4 with contents of M.
+    (CMP4 comparison "compare I4" 60 field
+          "Compare contents of rI4 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
+          2)
 
-
-(mixal-add-operation-code
- 'CMP5 'comparison "compare I5" (+ 56 5) 'field
- "Compare contents of rI5 with contents of M.
+    (CMP5 comparison "compare I5" 61 field
+          "Compare contents of rI5 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
-
+          2)
 
-(mixal-add-operation-code
- 'CMP6 'comparison "compare I6" (+ 56 6) 'field
- "Compare contents of rI6 with contents of M.
+    (CMP6 comparison "compare I6" 62 field
+          "Compare contents of rI6 with contents of M.
 The field specifier works on both fields. The comparison indicator
 is set to LESS, EQUAL or GREATER depending on the outcome. Bit 1,2 and 3
 have a value of 0."
- 2)
+          2)
 
-(mixal-add-operation-code
- 'JMP 'jump "jump" 39 0
- "Unconditional jump.
+    (JMP jump "jump" 39
+         "Unconditional jump.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'JSJ 'jump "jump, save J" 39 1
- "Unconditional jump, but rJ is not modified."
- 1)
+    (JSJ jump "jump, save J" 39
+         "Unconditional jump, but rJ is not modified."
+         1)
 
-(mixal-add-operation-code
- 'JOV 'jump "jump on overflow" 39 2
- "Jump if OV is set (and turn it off).
+    (JOV jump "jump on overflow" 39
+         "Jump if OV is set (and turn it off).
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'JNOV 'jump "Jump on no overflow" 39 3
- "Jump if OV is not set (and turn it off).
+    (JNOV jump "Jump on no overflow" 39
+          "Jump if OV is not set (and turn it off).
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'JL 'jump "Jump on less" 39 4
- "Jump if '[CM] = L'.
+    (JL jump "Jump on less" 39
+        "Jump if '[CM] = L'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+        1)
 
-(mixal-add-operation-code
- 'JE 'jump "Jump on equal" 39 5
- "Jump if '[CM] = E'.
+    (JE jump "Jump on equal" 39
+        "Jump if '[CM] = E'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+        1)
 
-
-(mixal-add-operation-code
- 'JG 'jump "Jump on greater" 39 6
- "Jump if '[CM] = G'.
+    (JG jump "Jump on greater" 39
+        "Jump if '[CM] = G'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+        1)
 
-(mixal-add-operation-code
- 'JGE 'jump "Jump on not less" 39 7
- "Jump if '[CM]' does not equal 'L'.
+    (JGE jump "Jump on not less" 39
+         "Jump if '[CM]' does not equal 'L'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'JNE 'jump "Jump on not equal" 39 8
- "Jump if '[CM]' does not equal 'E'.
+    (JNE jump "Jump on not equal" 39
+         "Jump if '[CM]' does not equal 'E'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'JLE 'jump "Jump on not greater" 39 9
- "Jump if '[CM]' does not equal 'G'.
+    (JLE jump "Jump on not greater" 39
+         "Jump if '[CM]' does not equal 'G'.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'JAN 'jump "jump A negative" 40 0
- "Jump if the content of rA is negative.
+    (JAN jump "jump A negative" 40
+         "Jump if the content of rA is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'JAZ 'jump "jump A zero" 40 1
- "Jump if the content of rA is zero.
+    (JAZ jump "jump A zero" 40
+         "Jump if the content of rA is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'JAP 'jump "jump A positive" 40 2
- "Jump if the content of rA is positive.
+    (JAP jump "jump A positive" 40
+         "Jump if the content of rA is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'JANN 'jump "jump A non-negative" 40 3
- "Jump if the content of rA is non-negative.
+    (JANN jump "jump A non-negative" 40
+          "Jump if the content of rA is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'JANZ 'jump "jump A non-zero" 40 4
- "Jump if the content of rA is non-zero.
+    (JANZ jump "jump A non-zero" 40
+          "Jump if the content of rA is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'JANP 'jump "jump A non-positive" 40 5
- "Jump if the content of rA is non-positive.
+    (JANP jump "jump A non-positive" 40
+          "Jump if the content of rA is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'JAE 'jump "jump A even" 40 6
- "Jump if the content of rA is even.
+    (JAE jump "jump A even" 40
+          "Jump if the content of rA is even.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'JAO 'jump "jump A odd" 40 7
- "Jump if the content of rA is odd.
+    (JAO jump "jump A odd" 40
+         "Jump if the content of rA is odd.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'JXN 'jump "jump X negative" 47 0
- "Jump if the content of rX is negative.
+    (JXN jump "jump X negative" 47
+         "Jump if the content of rX is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'JXZ 'jump "jump X zero" 47 1
- "Jump if the content of rX is zero.
+    (JXZ jump "jump X zero" 47
+         "Jump if the content of rX is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'JXP 'jump "jump X positive" 47 2
- "Jump if the content of rX is positive.
+    (JXP jump "jump X positive" 47
+         "Jump if the content of rX is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'JXNN 'jump "jump X non-negative" 47 3
- "Jump if the content of rX is non-negative.
+    (JXNN jump "jump X non-negative" 47
+          "Jump if the content of rX is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'JXNZ 'jump "jump X non-zero" 47 4
- "Jump if the content of rX is non-zero.
+    (JXNZ jump "jump X non-zero" 47
+          "Jump if the content of rX is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'JXNP 'jump "jump X non-positive" 47 5
- "Jump if the content of rX is non-positive.
+    (JXNP jump "jump X non-positive" 47
+          "Jump if the content of rX is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'JXE 'jump "jump X even" 47 6
- "Jump if the content of rX is even.
+    (JXE jump "jump X even" 47
+         "Jump if the content of rX is even.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'JXO 'jump "jump X odd" 47 7
- "Jump if the content of rX is odd.
+    (JXO jump "jump X odd" 47
+         "Jump if the content of rX is odd.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'J1N 'jump "jump I1 negative" (+ 40 1) 0
- "Jump if the content of rI1 is negative.
+    (J1N jump "jump I1 negative" 41
+     "Jump if the content of rI1 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+     1)
 
-(mixal-add-operation-code
- 'J1Z 'jump "jump I1 zero" (+ 40 1) 1
- "Jump if the content of rI1 is zero.
+    (J1Z jump "jump I1 zero" 41
+         "Jump if the content of rI1 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J1P 'jump "jump I1 positive" (+ 40 1) 2
- "Jump if the content of rI1 is positive.
+    (J1P jump "jump I1 positive" 41
+         "Jump if the content of rI1 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J1NN 'jump "jump I1 non-negative" (+ 40 1) 3
- "Jump if the content of rI1 is non-negative.
+    (J1NN jump "jump I1 non-negative" 41
+          "Jump if the content of rI1 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J1NZ 'jump "jump I1 non-zero" (+ 40 1) 4
- "Jump if the content of rI1 is non-zero.
+    (J1NZ jump "jump I1 non-zero" 41
+          "Jump if the content of rI1 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J1NP 'jump "jump I1 non-positive" (+ 40 1) 5
- "Jump if the content of rI1 is non-positive.
+    (J1NP jump "jump I1 non-positive" 41
+          "Jump if the content of rI1 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'J2N 'jump "jump I2 negative" (+ 40 1) 0
- "Jump if the content of rI2 is negative.
+    (J2N jump "jump I2 negative" 41
+         "Jump if the content of rI2 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J2Z 'jump "jump I2 zero" (+ 40 1) 1
- "Jump if the content of rI2 is zero.
+    (J2Z jump "jump I2 zero" 41
+         "Jump if the content of rI2 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J2P 'jump "jump I2 positive" (+ 40 1) 2
- "Jump if the content of rI2 is positive.
+    (J2P jump "jump I2 positive" 41
+         "Jump if the content of rI2 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J2NN 'jump "jump I2 non-negative" (+ 40 1) 3
- "Jump if the content of rI2 is non-negative.
+    (J2NN jump "jump I2 non-negative" 41
+          "Jump if the content of rI2 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J2NZ 'jump "jump I2 non-zero" (+ 40 1) 4
- "Jump if the content of rI2 is non-zero.
+    (J2NZ jump "jump I2 non-zero" 41
+          "Jump if the content of rI2 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J2NP 'jump "jump I2 non-positive" (+ 40 1) 5
- "Jump if the content of rI2 is non-positive.
+    (J2NP jump "jump I2 non-positive" 41
+          "Jump if the content of rI2 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J3N 'jump "jump I3 negative" (+ 40 1) 0
- "Jump if the content of rI3 is negative.
+    (J3N jump "jump I3 negative" 41
+         "Jump if the content of rI3 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J3Z 'jump "jump I3 zero" (+ 40 1) 1
- "Jump if the content of rI3 is zero.
+    (J3Z jump "jump I3 zero" 41
+         "Jump if the content of rI3 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J3P 'jump "jump I3 positive" (+ 40 1) 2
- "Jump if the content of rI3 is positive.
+    (J3P jump "jump I3 positive" 41
+         "Jump if the content of rI3 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J3NN 'jump "jump I3 non-negative" (+ 40 1) 3
- "Jump if the content of rI3 is non-negative.
+    (J3NN jump "jump I3 non-negative" 41
+          "Jump if the content of rI3 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J3NZ 'jump "jump I3 non-zero" (+ 40 1) 4
- "Jump if the content of rI3 is non-zero.
+    (J3NZ jump "jump I3 non-zero" 41
+          "Jump if the content of rI3 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J3NP 'jump "jump I3 non-positive" (+ 40 1) 5
- "Jump if the content of rI3 is non-positive.
+    (J3NP jump "jump I3 non-positive" 41
+          "Jump if the content of rI3 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J4N 'jump "jump I4 negative" (+ 40 1) 0
- "Jump if the content of rI4 is negative.
+    (J4N jump "jump I4 negative" 41
+         "Jump if the content of rI4 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J4Z 'jump "jump I4 zero" (+ 40 1) 1
- "Jump if the content of rI4 is zero.
+    (J4Z jump "jump I4 zero" 41
+         "Jump if the content of rI4 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J4P 'jump "jump I4 positive" (+ 40 1) 2
- "Jump if the content of rI4 is positive.
+    (J4P jump "jump I4 positive" 41
+         "Jump if the content of rI4 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J4NN 'jump "jump I4 non-negative" (+ 40 1) 3
- "Jump if the content of rI4 is non-negative.
+    (J4NN jump "jump I4 non-negative" 41
+          "Jump if the content of rI4 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J4NZ 'jump "jump I4 non-zero" (+ 40 1) 4
- "Jump if the content of rI4 is non-zero.
+    (J4NZ jump "jump I4 non-zero" 41
+          "Jump if the content of rI4 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J4NP 'jump "jump I4 non-positive" (+ 40 1) 5
- "Jump if the content of rI4 is non-positive.
+    (J4NP jump "jump I4 non-positive" 41
+          "Jump if the content of rI4 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J5N 'jump "jump I5 negative" (+ 40 1) 0
- "Jump if the content of rI5 is negative.
+    (J5N jump "jump I5 negative" 41
+         "Jump if the content of rI5 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J5Z 'jump "jump I5 zero" (+ 40 1) 1
- "Jump if the content of rI5 is zero.
+    (J5Z jump "jump I5 zero" 41
+         "Jump if the content of rI5 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J5P 'jump "jump I5 positive" (+ 40 1) 2
- "Jump if the content of rI5 is positive.
+    (J5P jump "jump I5 positive" 41
+         "Jump if the content of rI5 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J5NN 'jump "jump I5 non-negative" (+ 40 1) 3
- "Jump if the content of rI5 is non-negative.
+    (J5NN jump "jump I5 non-negative" 41
+          "Jump if the content of rI5 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J5NZ 'jump "jump I5 non-zero" (+ 40 1) 4
- "Jump if the content of rI5 is non-zero.
+    (J5NZ jump "jump I5 non-zero" 41
+          "Jump if the content of rI5 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J5NP 'jump "jump I5 non-positive" (+ 40 1) 5
- "Jump if the content of rI5 is non-positive.
+    (J5NP jump "jump I5 non-positive" 41
+          "Jump if the content of rI5 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J6N 'jump "jump I6 negative" (+ 40 1) 0
- "Jump if the content of rI6 is negative.
+    (J6N jump "jump I6 negative" 41
+         "Jump if the content of rI6 is negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+         1)
 
-
-(mixal-add-operation-code
- 'J6Z 'jump "jump I6 zero" (+ 40 1) 1
- "Jump if the content of rI6 is zero.
+    (J6Z jump "jump I6 zero" 41
+         "Jump if the content of rI6 is zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J6P 'jump "jump I6 positive" (+ 40 1) 2
- "Jump if the content of rI6 is positive.
+    (J6P jump "jump I6 positive" 41
+         "Jump if the content of rI6 is positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+         1)
 
-(mixal-add-operation-code
- 'J6NN 'jump "jump I6 non-negative" (+ 40 1) 3
- "Jump if the content of rI6 is non-negative.
+    (J6NN jump "jump I6 non-negative" 41
+          "Jump if the content of rI6 is non-negative.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-
-(mixal-add-operation-code
- 'J6NZ 'jump "jump I6 non-zero" (+ 40 1) 4
- "Jump if the content of rI6 is non-zero.
+    (J6NZ jump "jump I6 non-zero" 41
+          "Jump if the content of rI6 is non-zero.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
-
+          1)
 
-(mixal-add-operation-code
- 'J6NP 'jump "jump I6 non-positive" (+ 40 1) 5
- "Jump if the content of rI6 is non-positive.
+    (J6NP jump "jump I6 non-positive" 41
+          "Jump if the content of rI6 is non-positive.
 Register J is set to the value of the next instruction that would have
 been executed when there was no jump."
- 1)
+          1)
 
-(mixal-add-operation-code
- 'SLA 'miscellaneous "shift left A" 6 0
- "Shift to A, M bytes left.
+    (SLA miscellaneous "shift left A" 6
+         "Shift to A, M bytes left.
 Hero's will be added to the right."
- 2)
-
+         2)
 
-(mixal-add-operation-code
- 'SRA 'miscellaneous "shift right A" 6 1
- "Shift to A, M bytes right.
+    (SRA miscellaneous "shift right A" 6
+         "Shift to A, M bytes right.
 Zeros will be added to the left."
- 2)
+         2)
 
-
-(mixal-add-operation-code
- 'SLAX 'miscellaneous "shift left AX" 6 2
- "Shift AX, M bytes left.
+    (SLAX miscellaneous "shift left AX" 6
+          "Shift AX, M bytes left.
 Zeros will be added to the right."
- 2)
+          2)
 
+    (SRAX miscellaneous "shift right AX" 6
+          "Shift AX, M bytes right.
+Zeros will be added to the left."
+          2)
 
+    (SLC miscellaneous "shift left AX circularly" 6
+         "Shift AX, M bytes left circularly.
+The bytes that fall off to the left will be added to the right."
+         2)
 
-(mixal-add-operation-code
- 'SRAX 'miscellaneous "shift right AX" 6 3
- "Shift AX, M bytes right.
-Zeros will be added to the left."
- 2)
+    (SRC miscellaneous "shift right AX circularly" 6
+         "Shift AX, M bytes right circularly.
+The bytes that fall off to the right will be added to the left."
+         2)
 
+    (SLB miscellaneous "shift left AX binary" 6
+         "Shift AX, M binary places left."
+         2)
 
-(mixal-add-operation-code
- 'SLC 'miscellaneous "shift left AX circularly" 6 4
- "Shift AX, M bytes left circularly.
-The bytes that fall off to the left will be added to the right."
- 2)
+    (SRB miscellaneous "shift right AX binary" 6
+         "Shift AX, M binary places right."
+         2)
 
+    (MOVE miscellaneous "move" 7 number
+          "Move MOD words from M to the location stored in rI1."
+          (+ 1 (* 2 number)))
 
-(mixal-add-operation-code
- 'SRC 'miscellaneous "shift right AX circularly" 6 4
- "Shift AX, M bytes right circularly.
-The bytes that fall off to the right will be added to the left."
- 2)
-
-(mixal-add-operation-code
- 'SLB 'miscellaneous "shift left AX binary" 6 6
- "Shift AX, M binary places left."
- 2)
-
-(mixal-add-operation-code
- 'SRB 'miscellaneous "shift right AX binary" 6 7
- "Shift AX, M binary places right."
- 2)
-
-(mixal-add-operation-code
- 'MOVE 'miscellaneous "move" 7 'number
- "Move MOD words from M to the location stored in rI1."
- '(+ 1 (* 2 number)))
-
-(mixal-add-operation-code
- 'NOP 'miscellaneous "no operation" 0 'ignored
- "No operation, M and F are not used by the machine."
- 1)
-
-(mixal-add-operation-code
- 'HLT 'miscellaneous "halt" 5 2
- "Halt.
+    (NOP miscellaneous "no operation" 0 ignored
+         "No operation, M and F are not used by the machine."
+         1)
+
+    (HLT miscellaneous "halt" 5
+         "Halt.
 Stop instruction fetching."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'IN 'input-output "input" 36 'unit
- "Transfer a block of words from the specified unit to memory.
+    (IN input-output "input" 36 unit
+        "Transfer a block of words from the specified unit to memory.
 The transfer starts at address M."
- 1)
+        1)
 
-(mixal-add-operation-code
- 'OUT 'input-output "output" 37 'unit
- "Transfer a block of words from memory.
+    (OUT input-output "output" 37 unit
+         "Transfer a block of words from memory.
 The transfer starts at address M to the specified unit."
- 1)
+         1)
 
-(mixal-add-operation-code
- 'IOC 'input-output "input-output control" 35 'unit
- "Perform a control operation.
+    (IOC input-output "input-output control" 35 unit
+         "Perform a control operation.
 The control operation is given by M on the specified unit."
- 1)
-
-(mixal-add-operation-code
- 'JRED 'input-output "jump ready" 38 'unit
- "Jump to M if the specified unit is ready."
- 1)
+         1)
 
+    (JRED input-output "jump ready" 38 unit
+          "Jump to M if the specified unit is ready."
+          1)
 
-(mixal-add-operation-code
- 'JBUS 'input-output "jump busy" 34 'unit
- "Jump to M if the specified unit is busy."
- 1)
+    (JBUS input-output "jump busy" 34 unit
+          "Jump to M if the specified unit is busy."
+          1)
 
-(mixal-add-operation-code
- 'NUM 'conversion "convert to numeric" 5 0
- "Convert rAX to its numerical value and store it in rA.
+    (NUM conversion "convert to numeric" 5
+         "Convert rAX to its numerical value and store it in rA.
 the register rAX is assumed to contain a character representation of
 a number."
- 10)
+         10)
 
-(mixal-add-operation-code
- 'CHAR 'conversion "convert to characters" 5 1
- "Convert the number stored in rA to a character representation.
+    (CHAR conversion "convert to characters" 5
+          "Convert the number stored in rA to a character representation.
 The converted character representation is stored in rAX."
- 10)
+          10))
+
+  "Alist that contains all the possible operation codes for mix.
+Each elt has the form
+  (OP-CODE GROUP FULL-NAME C-BYTE F-BYTE DESCRIPTION EXECUTION-TIME)
+Where OP-CODE is the text of the opcode as a symbol,
+FULL-NAME is the human readable name as a string,
+C-BYTE is the operation code telling what operation is to be performed,
+F-BYTE holds a modification of the operation code which can be a symbol
+  or a number,
+DESCRIPTION contains an string with a description about the operation code and
+EXECUTION-TIME holds info about the time it takes, number or string.")
+;; (makunbound 'mixal-operation-codes-alist)
+
+
+;;; Font-locking:
+(defconst mixal-syntax-propertize-function
+  (syntax-propertize-rules
+   ;; Normal comments start with a * in column 0 and end at end of line.
+   ("^\\*" (0 "<"))
+   ;; Every line can end with a comment which is placed after the operand.
+   ;; I assume here that mnemonics without operands can not have a comment.
+   ("^[[:alnum:]]*[ \t]+[[:alnum:]]+[ \t]+[^ \n\t]+[ \t]*\\([ \t]\\)[^\n \t]"
+    (1 "<"))))
+
+(defvar mixal-font-lock-keywords
+  `(("^\\([A-Z0-9a-z]+\\)"
+     (1 mixal-font-lock-label-face))
+    (,(regexp-opt (mapcar (lambda (x) (symbol-name (car x)))
+                          mixal-operation-codes-alist) 'words)
+     . mixal-font-lock-operation-code-face)
+    (,(regexp-opt mixal-assembly-pseudoinstructions 'words)
+     . mixal-font-lock-assembly-pseudoinstruction-face)
+    ("^[A-Z0-9a-z]*[ \t]+[A-Z0-9a-z]+[ \t]+\\(=.*=\\)"
+     (1 font-lock-constant-face)))
+  "Keyword highlighting specification for `mixal-mode'.")
+;; (makunbound 'mixal-font-lock-keywords)
 
 (defvar mixal-describe-operation-code-history nil
   "History list for describe operation code.")
 
-(defun mixal-describe-operation-code (&optional op-code)
+(defun mixal-describe-operation-code (op-code)
   "Display the full documentation of OP-CODE."
-  (interactive)
-  ;; we like to provide completition and history, so do it ourself (interactive "?bla")?
-  (unless op-code
+  (interactive
+   (list
     (let* ((completion-ignore-case t)
 	   ;; we already have a list, but it is not in the right format
-	   ;; transform it to a valid table so completition can use it
-	   (table (mapcar '(lambda (elm)
-			     (cons (symbol-name (car elm)) nil))
+	   ;; transform it to a valid table so completion can use it
+	   (table (mapcar (lambda (elm) (cons (symbol-name (car elm)) nil))
 			  mixal-operation-codes-alist))
 	   ;; prompt is different depending on we are close to a valid op-code
-	   (have-default (member (current-word) mixal-operation-codes))
+	   (have-default (assq (intern-soft (current-word))
+                               mixal-operation-codes-alist))
 	   (prompt (concat "Describe operation code "
 			   (if have-default
 			       (concat "(default " (current-word) "): ")
 			     ": "))))
-      ;; as the operation code to the user
-      (setq op-code (completing-read prompt table nil t nil
-				     'mixal-describe-operation-code-history
-				     (current-word)))))
+      ;; As the operation code to the user.
+      (completing-read prompt table nil t nil
+                       'mixal-describe-operation-code-history
+                       (current-word)))))
   ;; get the info on the op-code and output it to the help buffer
   (let ((op-code-help (assq (intern-soft op-code) mixal-operation-codes-alist)))
     (when op-code-help
@@ -1334,35 +1122,38 @@ The converted character representation is stored in rAX."
 
 ;;;; Running
 (defun mixal-run ()
-  "Run's mixal file in current buffer, assumes that file has been compiled"
+  "Run mixal file in current buffer, assumes that file has been compiled."
   (interactive)
-  (mixvm (concat "mixvm -r -t -d "
-		 (file-name-sans-extension (buffer-file-name)))))
+  (if (fboundp 'mixvm)
+      (mixvm (concat "mixvm -r -t -d "
+		     (file-name-sans-extension (buffer-file-name))))
+    (error "mixvm.el needs to be loaded to run `mixvm'")))
 
 (defun mixal-debug ()
-  "Starts mixvm for debugging, assumes that file has been compiled with debugging support"
+  "Start mixvm for debugging.
+Assumes that file has been compiled with debugging support."
   (interactive)
-  (mixvm (concat "mixvm "
-		 (file-name-sans-extension (buffer-file-name)))))
+  (if (fboundp 'mixvm)
+      (mixvm (concat "mixvm "
+		     (file-name-sans-extension (buffer-file-name))))
+    (error "mixvm.el needs to be loaded to run `mixvm'")))
 
 ;;;###autoload
-(define-derived-mode mixal-mode fundamental-mode "mixal"
-  "Major mode for the mixal asm language.
-\\{mixal-mode-map}"
+(define-derived-mode mixal-mode prog-mode "mixal"
+  "Major mode for the mixal asm language."
   (set (make-local-variable 'comment-start) "*")
-  (set (make-local-variable 'comment-start-skip) "*")
-  (set (make-local-variable 'font-lock-defaults) '(mixal-font-lock-keywords))
-; might add an indent function in the future
-;  (set (make-local-variable 'indent-line-function) 'mixal-indent-line)
-  (set (make-local-variable 'compile-command) (concat "mixasm "
-						      buffer-file-name))
-  ;; mixasm will do strange when there is no final newline,
-  ;; so let Emacs ensure that it is always there
-  (set (make-local-variable 'require-final-newline)
-       mode-require-final-newline))
-
-;;;###autoload
-(add-to-list 'auto-mode-alist '("\\.mixal\\'" . mixal-mode))
+  (set (make-local-variable 'comment-start-skip) "^\\*[ \t]*")
+  (set (make-local-variable 'font-lock-defaults)
+       '(mixal-font-lock-keywords))
+  (set (make-local-variable 'syntax-propertize-function)
+       mixal-syntax-propertize-function)
+  ;; might add an indent function in the future
+  ;;  (set (make-local-variable 'indent-line-function) 'mixal-indent-line)
+  (set (make-local-variable 'compile-command)
+       (concat "mixasm "
+	       (if buffer-file-name
+		   (shell-quote-argument buffer-file-name)))))
 
 (provide 'mixal-mode)
+
 ;;; mixal-mode.el ends here