;;; Define NAME as a fasl operation, with op-code FOP-CODE. PUSHP
;;; describes what the body does to the fop stack:
-;;; :NOPE
-;;; The body neither pushes or pops the fop stack.
;;; T
;;; The body might pop the fop stack. The result of the body is
;;; pushed on the fop stack.
;;; NIL
;;; The body might pop the fop stack. The result of the body is
;;; discarded.
-;;;
-;;; FIXME: Make PUSHP into a &KEY argument accepting a booleana value.
-;;; Handle the :PUSHP :NOPE case with a separate :STACKP NIL argument,
-;;; meaning "the body doesn't interact with the FOP stack."
-(defmacro define-fop ((name fop-code &optional (pushp t)) &rest forms)
+;;; STACKP describes whether or not the body interacts with the fop stack.
+(defmacro define-fop ((name fop-code &key (pushp t) (stackp t)) &rest forms)
`(progn
(defun ,name ()
- ,(if (eq pushp :nope)
- `(progn ,@forms)
- `(with-fop-stack ,pushp ,@forms)))
+ ,(if stackp
+ `(with-fop-stack ,pushp ,@forms)
+ `(progn ,@forms)))
(%define-fop ',name ,fop-code)))
(defun %define-fop (name code)
;;; Some of this logic is already in DUMP-FOP*, but that still requires the
;;; caller to know that it's a 1-byte-arg/4-byte-arg cloned fop pair, and to
;;; know both the 1-byte-arg and the 4-byte-arg fop names. -- WHN 19990902
-(defmacro define-cloned-fops ((name code &optional (pushp t))
+(defmacro define-cloned-fops ((name code &key (pushp t) (stackp t))
(small-name small-code) &rest forms)
- (aver (member pushp '(nil t :nope)))
+ (aver (member pushp '(nil t)))
+ (aver (member stackp '(nil t)))
`(progn
(macrolet ((clone-arg () '(read-arg 4)))
- (define-fop (,name ,code ,pushp) ,@forms))
+ (define-fop (,name ,code :pushp ,pushp :stackp ,stackp) ,@forms))
(macrolet ((clone-arg () '(read-arg 1)))
- (define-fop (,small-name ,small-code ,pushp) ,@forms))))
+ (define-fop (,small-name ,small-code :pushp ,pushp :stackp stackp) ,@forms))))
;;; a helper function for reading string values from FASL files: sort
;;; of like READ-SEQUENCE specialized for files of (UNSIGNED-BYTE 8),
;;; into fasl files for debugging purposes. There's no shortage of
;;; unused fop codes, so we add this second NOP, which reads 4
;;; arbitrary bytes and discards them.
-(define-fop (fop-nop4 137 :nope)
+(define-fop (fop-nop4 137 :stackp nil)
(let ((arg (read-arg 4)))
(declare (ignorable arg))
#!+sb-show
(when *show-fop-nop4-p*
(format *debug-io* "~&/FOP-NOP4 ARG=~W=#X~X~%" arg arg))))
-(define-fop (fop-nop 0 :nope))
-(define-fop (fop-pop 1 nil) (push-fop-table (pop-stack)))
+(define-fop (fop-nop 0 :stackp nil))
+(define-fop (fop-pop 1 :pushp nil) (push-fop-table (pop-stack)))
(define-fop (fop-push 2) (svref *current-fop-table* (read-arg 4)))
(define-fop (fop-byte-push 3) (svref *current-fop-table* (read-arg 1)))
(name (pop-stack)))
(find-and-init-or-check-layout name length inherits depthoid)))
-(define-fop (fop-end-group 64 :nope)
+(define-fop (fop-end-group 64 :stackp nil)
(/show0 "THROWing FASL-GROUP-END")
(throw 'fasl-group-end t))
;;; In the normal loader, we just ignore these. GENESIS overwrites
;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
;;; cold-loading or not.
-(define-fop (fop-normal-load 81 :nope))
-(define-fop (fop-maybe-cold-load 82 :nope))
+(define-fop (fop-normal-load 81 :stackp nil))
+(define-fop (fop-maybe-cold-load 82 :stackp nil))
-(define-fop (fop-verify-table-size 62 :nope)
+(define-fop (fop-verify-table-size 62 :stackp nil)
(let ((expected-index (read-arg 4)))
(unless (= *current-fop-table-index* expected-index)
(error "internal error: fasl table of improper size"))))
-(define-fop (fop-verify-empty-stack 63 :nope)
+(define-fop (fop-verify-empty-stack 63 :stackp nil)
(unless (= *fop-stack-pointer* *fop-stack-pointer-on-entry*)
(error "internal error: fasl stack not empty when it should be")))
\f
;; fasl loading.
result))
-(define-fop (fop-eval-for-effect 54 nil)
+(define-fop (fop-eval-for-effect 54 :pushp nil)
(let ((result (eval (pop-stack))))
;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
(declare (ignore result))
((zerop n) (apply (pop-stack) args))
(declare (type index n))))))
-(define-fop (fop-funcall-for-effect 56 nil)
+(define-fop (fop-funcall-for-effect 56 :pushp nil)
(let ((arg (read-arg 1)))
(if (zerop arg)
(funcall (pop-stack))
\f
;;;; fops for fixing up circularities
-(define-fop (fop-rplaca 200 nil)
+(define-fop (fop-rplaca 200 :pushp nil)
(let ((obj (svref *current-fop-table* (read-arg 4)))
(idx (read-arg 4))
(val (pop-stack)))
(setf (car (nthcdr idx obj)) val)))
-(define-fop (fop-rplacd 201 nil)
+(define-fop (fop-rplacd 201 :pushp nil)
(let ((obj (svref *current-fop-table* (read-arg 4)))
(idx (read-arg 4))
(val (pop-stack)))
(setf (cdr (nthcdr idx obj)) val)))
-(define-fop (fop-svset 202 nil)
+(define-fop (fop-svset 202 :pushp nil)
(let* ((obi (read-arg 4))
(obj (svref *current-fop-table* obi))
(idx (read-arg 4))
(setf (%instance-ref obj idx) val)
(setf (svref obj idx) val))))
-(define-fop (fop-structset 204 nil)
+(define-fop (fop-structset 204 :pushp nil)
(setf (%instance-ref (svref *current-fop-table* (read-arg 4))
(read-arg 4))
(pop-stack)))
-(define-fop (fop-nthcdr 203 t)
+;;; In the original CMUCL code, this actually explicitly declared PUSHP
+;;; to be T, even though that's what it defaults to in DEFINE-FOP.
+(define-fop (fop-nthcdr 203)
(nthcdr (read-arg 4) (pop-stack)))
\f
;;;; fops for loading functions
;;; putting the implementation and version in required fields in the
;;; fasl file header.)
-(define-fop (fop-code 58 :nope)
+(define-fop (fop-code 58 :stackp nil)
(load-code (read-arg 4) (read-arg 4)))
-(define-fop (fop-small-code 59 :nope)
+(define-fop (fop-small-code 59 :stackp nil)
(load-code (read-arg 1) (read-arg 2)))
(define-fop (fop-fdefinition 60)
(sb!vm:sanctify-for-execution component)
component))
-(define-fop (fop-fset 74 nil)
+(define-fop (fop-fset 74 :pushp nil)
;; Ordinary, not-for-cold-load code shouldn't need to mess with this
;; at all, since it's only used as part of the conspiracy between
;; the cross-compiler and GENESIS to statically link FDEFINITIONs
(setf (fdefinition name) fn)))
;;; Modify a slot in a CONSTANTS object.
-(define-cloned-fops (fop-alter-code 140 nil) (fop-byte-alter-code 141)
+(define-cloned-fops (fop-alter-code 140 :pushp nil) (fop-byte-alter-code 141)
(let ((value (pop-stack))
(code (pop-stack)))
(setf (code-header-ref code (clone-arg)) value)
projects / sbcl.git / blobdiff