From 6f7368dad80457b5dd8f72bf3cf6cc661e36904b Mon Sep 17 00:00:00 2001
From: hachti <hachti>
Date: Mon, 24 Dec 2007 07:22:09 +0000
Subject: [PATCH] *** empty log message ***

---
 resources/dap16-mode.el |   2 +-
 resources/h316-asm.el   | 405 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 406 insertions(+), 1 deletion(-)
 create mode 100644 resources/h316-asm.el

diff --git a/resources/dap16-mode.el b/resources/dap16-mode.el
index 52f1b8b..8188c22 100644
--- a/resources/dap16-mode.el
+++ b/resources/dap16-mode.el
@@ -1,5 +1,5 @@
 ;;; dap16-mode.el --- mode for editing DAP-16 assembler code
- 
+
 ;;; Commentary:
 
 ;; This mode was written by Philipp Hachtmann <hachti@hachti.de>.
diff --git a/resources/h316-asm.el b/resources/h316-asm.el
new file mode 100644
index 0000000..95d3b9c
--- /dev/null
+++ b/resources/h316-asm.el
@@ -0,0 +1,405 @@
+;;; asm-mode.el --- mode for editing assembler code
+
+;;; Commentary:
+
+;; This mode was written by Eric S. Raymond <esr@snark.thyrsus.com>,
+;; inspired by an earlier asm-mode by Martin Neitzel.
+
+;; This minor mode is based on text mode.  It defines a private abbrev table
+;; that can be used to save abbrevs for assembler mnemonics.  It binds just
+;; five keys:
+;;
+;;	TAB		tab to next tab stop
+;;	:		outdent preceding label, tab to tab stop
+;;	comment char	place or move comment
+;;			asm-comment-char specifies which character this is;
+;;			you can use a different character in different
+;;			Asm mode buffers.
+;;	C-j, C-m	newline and tab to tab stop
+;;
+;; Code is indented to the first tab stop level.
+
+;; This mode runs two hooks:
+;;   1) An asm-mode-set-comment-hook before the part of the initialization
+;; depending on asm-comment-char, and
+;;   2) an asm-mode-hook at the end of initialization.
+
+;;; Code:
+
+(defgroup asm nil
+  "X16 Assembler programming"
+  :group 'languages)
+
+
+(defcustom asm-comment-char ?*
+  "*The comment-start character assumed by Asm mode."
+  :type 'sexp
+  :group 'asm)
+
+;; XEmacs change (This is the primary difference, why was this
+;;  feature removed? -sb)
+(defcustom asm-support-c-comments-p nil
+  "*Support C style comments.  If t C style comments will be
+supported.  This is mainly for the benefit of font-lock."
+  :type 'boolean
+  :group 'asm)
+
+(defcustom asm-mode-syntax-table nil
+  "Syntax table used while in Asm mode.")
+
+(defvar asm-mode-abbrev-table nil
+  "Abbrev table used while in Asm mode.")
+(define-abbrev-table 'asm-mode-abbrev-table ())
+
+(defvar asm-mode-map nil
+  "Keymap for Asm mode.")
+
+;;(if asm-mode-map
+;;    nil
+  ;; XEmacs change
+  (setq asm-mode-map (make-sparse-keymap 'asm-mode-map))
+  ;; Note that the comment character isn't set up until asm-mode is called.
+  (define-key asm-mode-map ":"	'asm-colon)
+  (define-key asm-mode-map "\C-h"       'asm-backspace)
+  (define-key asm-mode-map "\C-l"       'asm-halfdelim)
+  (define-key asm-mode-map "\M-l"       'asm-fulldelim)
+  (define-key asm-mode-map "\C-i"       'asm-tabulator)
+;;(define-key asm-mode-map "\C-a"	'asm-comment-region)
+  (define-key asm-mode-map "\C-a"       'beginning-of-line)
+  (define-key asm-mode-map "\C-j"	'asm-newline)
+  (define-key asm-mode-map "\C-m"	'asm-newline)
+;;  )
+
+(defconst asm-font-lock-keywords
+ '(("^\\(\\(\\sw\\|\\s_\\)+\\)\\>:?[ \t]*\\(\\sw+\\)?"
+    (1 font-lock-function-name-face) (3 font-lock-keyword-face nil t))
+   ("^\\s +\\(\\(\\sw\\|\\s_\\)+\\)" 1 font-lock-keyword-face))
+
+ "Additional expressions to highlight in Assembler mode.")
+
+;; XEmacs change
+(put 'asm-mode 'font-lock-defaults '(asm-font-lock-keywords))
+(defvar asm-code-level-empty-comment-pattern nil)
+(defvar asm-flush-left-empty-comment-pattern nil)
+(defvar asm-inline-empty-comment-pattern nil)
+
+
+;;;###autoload
+(defun asm-mode ()
+  "Major mode for editing typical assembler code.
+Features a private abbrev table and the following bindings:
+
+\\[asm-colon]\toutdent a preceding label, tab to next tab stop.
+\\[tab-to-tab-stop]\ttab to next tab stop.
+\\[asm-newline]\tnewline, then tab to next tab stop.
+\\[asm-comment]\tsmart placement of assembler comments.
+
+The character used for making comments is set by the variable
+`asm-comment-char' (which defaults to `?;').
+
+Alternatively, you may set this variable in `asm-mode-set-comment-hook',
+which is called near the beginning of mode initialization.
+
+Turning on Asm mode runs the hook `asm-mode-hook' at the end of initialization.
+
+Special commands:
+\\{asm-mode-map}
+"
+  (interactive)
+
+;;  (make-local-variable 'asm-comment-space)
+
+  (setq asm-comment-space " ")
+
+  (kill-all-local-variables)
+  (setq mode-name "Assembler")
+  (setq major-mode 'asm-mode)
+  (setq local-abbrev-table asm-mode-abbrev-table)
+  (make-local-variable 'font-lock-defaults)
+  (setq font-lock-defaults '(asm-font-lock-keywords))
+  (make-local-variable 'asm-mode-syntax-table)
+  (setq asm-mode-syntax-table (make-syntax-table))
+  (set-syntax-table asm-mode-syntax-table)
+
+  (run-hooks 'asm-mode-set-comment-hook)
+  ;; Make our own local child of asm-mode-map
+  ;; so we can define our own comment character.
+  ;; XEmacs change
+  (let ((ourmap (make-sparse-keymap)))
+    (set-keymap-parents ourmap (list asm-mode-map))
+    (use-local-map ourmap))
+  (local-set-key (vector asm-comment-char) 'asm-comment)
+  ;; XEmacs change
+
+
+  (if asm-support-c-comments-p
+      (progn
+	(modify-syntax-entry ?/ ". 14" asm-mode-syntax-table)
+	(modify-syntax-entry ?* ". 23" asm-mode-syntax-table)
+	(modify-syntax-entry asm-comment-char "< b" asm-mode-syntax-table)
+	(modify-syntax-entry ?\n "> b" asm-mode-syntax-table))
+    (progn
+      (modify-syntax-entry asm-comment-char
+			   "<" asm-mode-syntax-table)
+      (modify-syntax-entry ?\n
+			   ">" asm-mode-syntax-table)))
+
+
+  (let ((cs (regexp-quote (char-to-string asm-comment-char))))
+    (make-local-variable 'comment-start)
+    (setq comment-start (concat cs asm-comment-space))
+    (make-local-variable 'comment-start-skip)
+    (setq comment-start-skip (concat cs "+[ \t]*"))
+    (setq asm-inline-empty-comment-pattern (concat "^.+" cs "+ *$"))
+    (setq asm-code-level-empty-comment-pattern (concat "^[\t ]+" cs cs " *$"))
+    (setq asm-flush-left-empty-comment-pattern (concat "^" cs cs cs " *$"))
+    )
+  (make-local-variable 'comment-end)
+  (setq comment-end "")
+  (make-local-variable 'comment-column)
+  (setq comment-column 32)
+  (setq fill-prefix "\t")
+  (run-hooks 'asm-mode-hook))
+
+(defun asm-colon ()
+  "Insert a colon; if it follows a label, delete the label's indentation."
+  (interactive)
+  (if (is-comment-line) (progn (asm-comment-line) (tab-to-tab-stop))
+    (cond
+     
+      ;; unindent input
+      ( (save-excursion (beginning-of-line) (looking-at "\**[ \t]+\\(\\sw\\|\\s_\\)+$"))
+         (save-excursion (beginning-of-line) (delete-horizontal-space))
+	 (tab-to-tab-stop)
+	 )
+      
+      (t 
+       (insert ":")
+      )
+   )
+  ))
+
+(defun asm-line-matches (pattern &optional withcomment)
+  (save-excursion
+    (beginning-of-line)
+    (looking-at pattern)))
+
+(defun asm-pop-comment-level ()
+  ;; Delete an empty comment ending current line.  Then set up for a new one,
+  ;; on the current line if it was all comment, otherwise above it
+  (end-of-line)
+  (delete-horizontal-space)
+  (while (= (preceding-char) asm-comment-char)
+    (delete-backward-char 1))
+  (delete-horizontal-space)
+  (if (bolp)
+      nil
+    (beginning-of-line)
+    (open-line 1))
+  )
+
+
+(defun asm-comment ()
+  "Convert an empty comment to a `larger' kind, or start a new one.
+These are the known comment classes:
+
+   1 -- comment to the right of the code (at the comment-column)
+   2 -- comment on its own line, indented like code
+   3 -- comment on its own line, beginning at the left-most column.
+
+Suggested usage:  while writing your code, trigger asm-comment
+repeatedly until you are satisfied with the kind of comment."
+  (interactive)
+ 
+ (setq comment-start "")
+
+  (cond
+
+   ;; Blank line?  Then start comment.
+   ((asm-line-matches "^[ \t]*$")
+    (delete-horizontal-space)
+;;    (insert asm-comment-char comment-start)
+    (insert asm-comment-char asm-comment-space) 
+    )
+
+   ;; Nonblank line with no comment chars in it?
+   ;; Then start a comment at the current comment column
+   ;;( (if (is-comment-line) nil t)
+   ;; (indent-for-comment)  
+;;)
+
+   ;; Flush-left comment present?  Just insert character.
+;;   ((asm-line-matches asm-flush-left-empty-comment-pattern)
+;;    (insert asm-comment-char))
+
+   ;; Fresh comment line??
+   ( (asm-line-matches (format "^%c%s$" asm-comment-char asm-comment-space))
+    (end-of-line)
+    (delete-backward-char (length asm-comment-space))
+    (insert asm-comment-char asm-comment-char)
+   )
+
+   
+   ;; Empty code-level comment already present?
+   ;; Then start flush-left comment, on line above if this one is nonempty. 
+;;   ((asm-line-matches asm-code-level-empty-comment-pattern)
+;;    (asm-pop-comment-level)
+;;    (insert asm-comment-char asm-comment-char comment-start))
+
+   ;; Empty comment ends line?
+   ;; Then make code-level comment, on line above if this one is nonempty. 
+;;   ((asm-line-matches asm-inline-empty-comment-pattern)
+;;    (asm-pop-comment-level)
+;;    (tab-to-tab-stop)
+;;    (insert asm-comment-char comment-start))
+
+   ;; If all else fails, insert character
+   (t
+    (insert asm-comment-char))
+
+   )
+  (end-of-line))
+
+;; ****************************************************************************
+
+
+(defun pos-in-line ()
+  (- (point) (save-excursion (beginning-of-line) (point))))
+
+
+(defun at-begin-of-line ()
+  (interactive)
+    (setq pos (point) )
+(save-excursion  
+  (beginning-of-line)
+    (if (= pos (point)) t nil)
+    )
+)
+
+(defun is-comment-line ()
+  (if (asm-line-matches (format "^%c" asm-comment-char))
+    t
+    nil)
+)
+
+(defun in-comment-spacing ()
+ (if (> (current-column) (length (format "%c%s" asm-comment-char asm-comment-space))) nil t)
+)
+
+(defun asm-comment-line()
+ (interactive)
+ (if (is-comment-line) 
+     (save-excursion 
+       (beginning-of-line) 
+       (delete-char 1)
+       (if (looking-at "^ ")
+	   (delete-char 1)
+	 )
+     )
+     (save-excursion (beginning-of-line) (insert asm-comment-char asm-comment-space)) 
+  )
+)
+
+(defun line-start()
+  (save-excursion
+    (beginning-of-line)
+    (point)
+    )
+)
+
+(defun asm-comment-region()
+ (interactive)
+ 
+ (if (not (region-active-p)) (asm-comment-line)
+   (save-excursion 
+     (goto-char (region-end))
+     (setq lastline (line-number))
+     (goto-char (region-beginning))
+     (while (< (line-number) lastline)
+       (asm-comment-line)
+       (next-line 1)
+       ))))
+    
+   
+(defun asm-backspace ()
+  (interactive)
+  (if (and (is-comment-line) (in-comment-spacing))
+      (delete-region (- (line-start) 1) (point))
+     (delete-backward-char 1)
+  )
+;;delete-backward-char (length (format "%c%s" asm-comment-char asm-comment-space))) (tab-to-tab-stop))
+;; (delete-backward-char 1)
+  )
+
+(defun asm-fulldelim ()
+  (interactive)
+  (make-local-variable 'count)
+  (setq count 0)
+  (if (asm-line-matches (format "^%c%s$" asm-comment-char asm-comment-space)) 
+       (progn (setq count 1)
+       (end-of-line)
+       (delete-backward-char (length asm-comment-space)))
+  )
+  
+  (while (< count 80) 
+    (insert asm-comment-char) 
+    (setq count ( 1+ count)))
+)
+
+
+(defun asm-halfdelim ()
+  (interactive)
+  (make-local-variable 'count)
+  (setq count 0)
+  (if (asm-line-matches (format "^%c%s$" asm-comment-char asm-comment-space)) 
+       (progn (setq count 1)
+       (end-of-line)
+       (delete-backward-char (length asm-comment-space)))
+  )
+  
+  (while (< count 40) 
+    (insert asm-comment-char) 
+    (setq count ( 1+ count)))
+
+)
+
+
+(defun asm-tabulator ()
+  (interactive)
+  (if (is-comment-line)
+      (progn
+	(setq target (prog2 (insert "\t") (current-column) (delete-backward-char 1)  ))
+	     (while (< (current-column) target) (insert " "))
+        )
+      
+       (tab-to-tab-stop)
+     )
+)
+
+
+(defun asm-newline ()
+  "Insert LFD + fill-prefix, to bring us back to code-indent level."
+  (interactive)
+  
+  (if (is-comment-line)
+     (progn
+       (if (at-begin-of-line) (goto-char (+ (point) 1)))
+       (insert "\n" asm-comment-char asm-comment-space))
+
+     (if (eolp) 
+	 (progn (delete-horizontal-space)
+                (insert "\n")  
+		(tab-to-tab-stop)
+	  )
+      (insert "\n")  
+     
+     )
+     )
+)
+  
+
+;; XEmacs addition
+;;;###autoload(add-to-list 'auto-mode-alist '("\\.[sS]\\'" . asm-mode))
+;;;###autoload(add-to-list 'auto-mode-alist '("\\.asm\\'" . asm-mode))
+
+;;; asm-mode.el ends here
-- 
2.32.0