;;; -*- Mode:LISP; Package:USER; Base:10; Readtable:ZL -*-

(defun rand ()
  (ash (random (ash 2 32)) (- (random 32))))

;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;

(defun cf-hack-switch-1 (ar accessor)
  (let ((w (funcall accessor ar)))
    (multiple-value-bind (bits-wide bits-set bits-reset)
	(loop for b in (get 'lam-opt-processor-switches :bits)
	      for bit = (ldb (symeval b) w)
	      for elt = `(,(format nil "~@(~a~)" (get b :name)) :eval (symeval b)) 
	      when (> (ldb (byte 6 0) (symeval b)) 1)	;field is wider than one bit
	        collect elt into wide-list
	      else when (zerop bit)
	        collect elt into reset-list
	      else
	        collect elt into set-list
	      finally (return (values wide-list set-list reset-list)))
      (let ((switch
	    (tv:menu-choose (append '(("NOW SET; SELECT TO RESET:" :no-select nil))
				    bits-set
				    '(("NOW RESET; SELECT TO SET:" :no-select nil))
				    bits-reset
				    '(("WIDER THAN ONE BIT; SELECT TO EDIT:" :no-select nil))
				    bits-wide)
			    "Choose bit to change")))
	(when switch
	  (format t "~&~s" switch))))))

;;(tv:multiple-menu-choose (get 'lam-opt-processor-switches :bits) "Foo!" '(:mouse)
;;  (nthcdr 6 (get 'lam-opt-processor-switches :bits)))

;;(tv:multiple-choose 
;;   "Foo!"
;;   '((foo "Foo" ((:set t) :reset))
;;     (bar "Bar" (:set (:reset t)))
;;     (baz "Baz" (:set :reset)))
;;   '((:set "Set" nil (:reset) (:reset) nil)
;;     (:reset "Reset" nil (:set) (:set) nil)))

(defconst set-choice '((:set t) :reset))
(defconst reset-choice '(:set (:reset t)))

(defun cf-hack-switch-2 (ar accessor)
  (let* ((w (funcall accessor ar))
	 (x (tv:multiple-choose
	      "Select bits to set:"
	      (loop for b in (get 'lam-opt-processor-switches :bits)
		    for bit = (ldb (symeval b) w)
		    collect `(,b
			      ,(format nil "~@(~a~)" (get b :name))
			      ,(if (zerop bit) reset-choice set-choice)))
	      '((:set "Set" nil (:reset) (:reset) nil)
		(:reset "Reset" nil (:set) (:set) nil)))))
    (format t "~{~&~s~}" x)
    (loop for b in x
	  do (setq w (dpb (if (eq (cadr b) :set) 1 0) (symeval (car b)) w)))))

;;(defun cf-set-switch (ar accessor)
;;  (let ((switch (tv:menu-choose
;;		  (loop for l in (get 'lam-opt-processor-switches :bits)
;;			collect `(,(get l :name) :eval ,l)))))

;;;;;;;;;;;;;;;;

(defun reff (sym ar &optional new)
  (let* ((size (or (get sym :size) 4))
	 (mult (or (get sym :repeat) 4))
	 (offset (or (get sym :offset) (* (symeval sym) mult))))
    (cond
      (new
       (set-bytes ar offset size new))
      (t
       (get-bytes ar offset size)))
    ))

(defsetf reff reff)

;;;;;;;;;;;;;;;;

(defun undef (x)
  (makunbound x)
  (fmakunbound x)
  (do ((p (plist x) (cddr p)))
      ((null p))
    (remprop x (car p))))

;;;;;;;;;;;;;;;;