;;; will probably be loading the wrong register!
(defmacro with-empty-tn@fp-top((tn) &body body)
`(progn
- (inst fstp ,tn)
- ,@body
- (unless (zerop (tn-offset ,tn))
- (inst fxch ,tn)))) ; save into new dest and restore st(0)
+ (inst fstp ,tn)
+ ,@body
+ (unless (zerop (tn-offset ,tn))
+ (inst fxch ,tn)))) ; save into new dest and restore st(0)
\f
;;;; instruction-like macros
`(unless (location= ,n-dst ,n-src)
(inst mov ,n-dst ,n-src))))
+(defmacro align-stack-pointer (tn)
+ #!-darwin (declare (ignore tn))
+ #!+darwin
+ ;; 16 byte alignment.
+ `(inst and ,tn #xfffffff0))
+
(defmacro make-ea-for-object-slot (ptr slot lowtag &optional (size :dword))
`(make-ea ,size :base ,ptr :disp (- (* ,slot n-word-bytes) ,lowtag)))
(defmacro popw (ptr &optional (slot 0) (lowtag 0))
`(inst pop (make-ea-for-object-slot ,ptr ,slot ,lowtag)))
+
+(defmacro make-ea-for-vector-data (object &key (size :dword) (offset 0)
+ index (scale (ash (width-bits size) -3)))
+ `(make-ea ,size :base ,object :index ,index :scale ,scale
+ :disp (- (+ (* vector-data-offset n-word-bytes)
+ (* ,offset ,scale))
+ other-pointer-lowtag)))
\f
;;;; macros to generate useful values
(defmacro load-symbol (reg symbol)
`(inst mov ,reg (+ nil-value (static-symbol-offset ,symbol))))
-(defmacro make-ea-for-symbol-value (symbol)
- `(make-ea :dword
+(defmacro make-ea-for-symbol-value (symbol &optional (width :dword))
+ (declare (type symbol symbol))
+ `(make-ea ,width
:disp (+ nil-value
(static-symbol-offset ',symbol)
(ash symbol-value-slot word-shift)
#!+sb-thread
(defmacro make-ea-for-symbol-tls-index (symbol)
+ (declare (type symbol symbol))
`(make-ea :dword
:disp (+ nil-value
(static-symbol-offset ',symbol)
#!+sb-thread
(defmacro load-tl-symbol-value (reg symbol)
- `(progn
- (inst mov ,reg (make-ea-for-symbol-tls-index ,symbol))
- (inst fs-segment-prefix)
- (inst mov ,reg (make-ea :dword :base ,reg))))
+ `(with-tls-ea (EA :base ,reg
+ :disp-type :index
+ :disp (make-ea-for-symbol-tls-index ,symbol))
+ (inst mov ,reg (make-ea :dword :base ,reg) :maybe-fs)))
#!-sb-thread
(defmacro load-tl-symbol-value (reg symbol) `(load-symbol-value ,reg ,symbol))
#!+sb-thread
(defmacro store-tl-symbol-value (reg symbol temp)
- `(progn
- (inst mov ,temp (make-ea-for-symbol-tls-index ,symbol))
- (inst fs-segment-prefix)
- (inst mov (make-ea :dword :base ,temp) ,reg)))
+ `(with-tls-ea (EA :base ,temp
+ :disp-type :index
+ :disp (make-ea-for-symbol-tls-index ,symbol))
+ (inst mov EA ,reg :maybe-fs)))
#!-sb-thread
(defmacro store-tl-symbol-value (reg symbol temp)
(declare (ignore temp))
(defmacro load-binding-stack-pointer (reg)
#!+sb-thread
- `(progn
- (inst fs-segment-prefix)
- (inst mov ,reg (make-ea :dword
- :disp (* 4 thread-binding-stack-pointer-slot))))
+ `(with-tls-ea (EA :base ,reg
+ :disp-type :constant
+ :disp (* 4 thread-binding-stack-pointer-slot))
+ (inst mov ,reg EA :maybe-fs))
#!-sb-thread
`(load-symbol-value ,reg *binding-stack-pointer*))
(defmacro store-binding-stack-pointer (reg)
#!+sb-thread
`(progn
- (inst fs-segment-prefix)
- (inst mov (make-ea :dword
+ #!+win32
+ (progn
+ (inst push eax-tn)
+ (inst push ,reg)
+ (with-tls-ea (EA :base eax-tn
+ :disp-type :constant
:disp (* 4 thread-binding-stack-pointer-slot))
- ,reg))
+ (inst pop EA))
+ (inst pop eax-tn))
+ #!-win32
+ (with-tls-ea (EA :disp-type :constant
+ :disp (* 4 thread-binding-stack-pointer-slot))
+ (inst mov EA ,reg :maybe-fs)))
#!-sb-thread
`(store-symbol-value ,reg *binding-stack-pointer*))
(make-ea :byte :base ,n-source :disp ,n-offset)))
(:big-endian
`(inst mov ,n-target
- (make-ea :byte :base ,n-source :disp (+ ,n-offset 3)))))))
+ (make-ea :byte :base ,n-source
+ :disp (+ ,n-offset (1- n-word-bytes))))))))
\f
;;;; allocation helpers
;;; the duration. Now we have pseudoatomic there's no need for that
;;; overhead.
-(defun allocation-dynamic-extent (alloc-tn size)
+(defun allocation-dynamic-extent (alloc-tn size lowtag)
(inst sub esp-tn size)
;; FIXME: SIZE _should_ be double-word aligned (suggested but
;; unfortunately not enforced by PAD-DATA-BLOCK and
;; 2004-03-30
(inst and esp-tn (lognot lowtag-mask))
(aver (not (location= alloc-tn esp-tn)))
- (inst mov alloc-tn esp-tn)
+ (inst lea alloc-tn (make-ea :byte :base esp-tn :disp lowtag))
(values))
(defun allocation-notinline (alloc-tn size)
:foreign))))
(defun allocation-inline (alloc-tn size)
- (let ((ok (gen-label))
+ (let* ((ok (gen-label)) ;reindent after merging
(done (gen-label))
+ #!+(and sb-thread win32)
+ (scratch-tns (loop for my-tn in `(,eax-tn ,ebx-tn ,edx-tn ,ecx-tn)
+ when (and (not (location= alloc-tn my-tn))
+ (or (not (tn-p size))
+ (not (location= size my-tn))))
+ collect my-tn))
+ (tls-prefix #!+sb-thread :fs #!-sb-thread nil)
(free-pointer
(make-ea :dword :disp
#!+sb-thread (* n-word-bytes thread-alloc-region-slot)
(make-ea :dword :disp
#!+sb-thread (* n-word-bytes (1+ thread-alloc-region-slot))
#!-sb-thread (make-fixup "boxed_region" :foreign 4)
- :scale 1))) ; thread->alloc_region.end_addr
+ :scale 1)) ; thread->alloc_region.end_addr
+ #!+(and sb-thread win32) (scratch-tn (pop scratch-tns))
+ #!+(and sb-thread win32) (swap-tn (pop scratch-tns)))
(unless (and (tn-p size) (location= alloc-tn size))
(inst mov alloc-tn size))
- #!+sb-thread (inst fs-segment-prefix)
- (inst add alloc-tn free-pointer)
- #!+sb-thread (inst fs-segment-prefix)
- (inst cmp alloc-tn end-addr)
+ #!+(and sb-thread win32)
+ (progn
+ (inst push scratch-tn)
+ (inst push swap-tn)
+ (inst mov scratch-tn
+ (make-ea :dword :disp
+ +win32-tib-arbitrary-field-offset+) tls-prefix)
+ (setf (ea-base free-pointer) scratch-tn
+ (ea-base end-addr) scratch-tn
+ tls-prefix nil))
+ (inst add alloc-tn free-pointer tls-prefix)
+ (inst cmp alloc-tn end-addr tls-prefix)
(inst jmp :be ok)
(let ((dst (ecase (tn-offset alloc-tn)
(#.eax-offset "alloc_overflow_eax")
;; Swap ALLOC-TN and FREE-POINTER
(cond ((and (tn-p size) (location= alloc-tn size))
;; XCHG is extremely slow, use the xor swap trick
- #!+sb-thread (inst fs-segment-prefix)
- (inst xor alloc-tn free-pointer)
- #!+sb-thread (inst fs-segment-prefix)
- (inst xor free-pointer alloc-tn)
- #!+sb-thread (inst fs-segment-prefix)
- (inst xor alloc-tn free-pointer))
+ #!-(and sb-thread win32)
+ (progn
+ (inst xor alloc-tn free-pointer tls-prefix)
+ (inst xor free-pointer alloc-tn tls-prefix)
+ (inst xor alloc-tn free-pointer tls-prefix))
+ #!+(and sb-thread win32)
+ (progn
+ (inst mov swap-tn free-pointer tls-prefix)
+ (inst mov free-pointer alloc-tn tls-prefix)
+ (inst mov alloc-tn swap-tn)))
(t
;; It's easier if SIZE is still available.
- #!+sb-thread (inst fs-segment-prefix)
- (inst mov free-pointer alloc-tn)
+ (inst mov free-pointer alloc-tn tls-prefix)
(inst sub alloc-tn size)))
- (emit-label done))
- (values))
+ (emit-label done)
+ #!+(and sb-thread win32)
+ (progn
+ (inst pop swap-tn)
+ (inst pop scratch-tn))
+ (values)))
;;; Emit code to allocate an object with a size in bytes given by
;;; (FIXME: so why aren't we asserting this?)
-(defun allocation (alloc-tn size &optional inline dynamic-extent)
+(defun allocation (alloc-tn size &optional inline dynamic-extent lowtag)
+ (declare (ignorable inline))
(cond
- (dynamic-extent (allocation-dynamic-extent alloc-tn size))
+ (dynamic-extent
+ (allocation-dynamic-extent alloc-tn size lowtag))
((or (null inline) (policy inline (>= speed space)))
(allocation-inline alloc-tn size))
- (t (allocation-notinline alloc-tn size)))
+ (t
+ (allocation-notinline alloc-tn size)))
+ (when (and lowtag (not dynamic-extent))
+ (inst lea alloc-tn (make-ea :byte :base alloc-tn :disp lowtag)))
(values))
;;; Allocate an other-pointer object of fixed SIZE with a single word
;;; header having the specified WIDETAG value. The result is placed in
;;; RESULT-TN.
-(defmacro with-fixed-allocation ((result-tn widetag size &optional inline)
+(defmacro with-fixed-allocation ((result-tn widetag size &optional inline stack-allocate-p)
&body forms)
(unless forms
(bug "empty &body in WITH-FIXED-ALLOCATION"))
- (once-only ((result-tn result-tn) (size size))
- `(pseudo-atomic
- (allocation ,result-tn (pad-data-block ,size) ,inline)
- (storew (logior (ash (1- ,size) n-widetag-bits) ,widetag)
- ,result-tn)
- (inst lea ,result-tn
- (make-ea :byte :base ,result-tn :disp other-pointer-lowtag))
- ,@forms)))
+ (once-only ((result-tn result-tn) (size size) (stack-allocate-p stack-allocate-p))
+ `(maybe-pseudo-atomic ,stack-allocate-p
+ (allocation ,result-tn (pad-data-block ,size) ,inline ,stack-allocate-p
+ other-pointer-lowtag)
+ (storew (logior (ash (1- ,size) n-widetag-bits) ,widetag)
+ ,result-tn 0 other-pointer-lowtag)
+ ,@forms)))
\f
;;;; error code
-(eval-when (#-sb-xc :compile-toplevel :load-toplevel :execute)
- (defun emit-error-break (vop kind code values)
- (let ((vector (gensym)))
- `((progn
- #-darwin (inst int 3) ; i386 breakpoint instruction
- ;; CLH 20060314
- ;; On Darwin, we need to use #x0b0f instead of int3 in order
- ;; to generate a SIGILL instead of a SIGTRAP as darwin/x86
- ;; doesn't seem to be reliably firing SIGTRAP
- ;; handlers. Hopefully this will be fixed by Apple at a
- ;; later date.
- #+darwin (inst word #x0b0f))
- ;; The return PC points here; note the location for the debugger.
- (let ((vop ,vop))
- (when vop
- (note-this-location vop :internal-error)))
- (inst byte ,kind) ; eg trap_Xyyy
- (with-adjustable-vector (,vector) ; interr arguments
- (write-var-integer (error-number-or-lose ',code) ,vector)
- ,@(mapcar (lambda (tn)
- `(let ((tn ,tn))
- ;; classic CMU CL comment:
- ;; zzzzz jrd here. tn-offset is zero for constant
- ;; tns.
- (write-var-integer (make-sc-offset (sc-number
- (tn-sc tn))
- (or (tn-offset tn)
- 0))
- ,vector)))
- values)
- (inst byte (length ,vector))
- (dotimes (i (length ,vector))
- (inst byte (aref ,vector i))))))))
-
-(defmacro error-call (vop error-code &rest values)
+(defun emit-error-break (vop kind code values)
+ (assemble ()
+ #!-ud2-breakpoints
+ (inst int 3) ; i386 breakpoint instruction
+ ;; CLH 20060314
+ ;; On Darwin, we need to use #x0b0f instead of int3 in order
+ ;; to generate a SIGILL instead of a SIGTRAP as darwin/x86
+ ;; doesn't seem to be reliably firing SIGTRAP
+ ;; handlers. Hopefully this will be fixed by Apple at a
+ ;; later date.
+ #!+ud2-breakpoints
+ (inst word #x0b0f)
+ ;; The return PC points here; note the location for the debugger.
+ (when vop
+ (note-this-location vop :internal-error))
+ (inst byte kind) ; e.g. trap_xyyy
+ (with-adjustable-vector (vector) ; interr arguments
+ (write-var-integer code vector)
+ (dolist (tn values)
+ ;; classic CMU CL comment:
+ ;; zzzzz jrd here. tn-offset is zero for constant
+ ;; tns.
+ (write-var-integer (make-sc-offset (sc-number (tn-sc tn))
+ (or (tn-offset tn) 0))
+ vector))
+ (inst byte (length vector))
+ (dotimes (i (length vector))
+ (inst byte (aref vector i))))))
+
+(defun error-call (vop error-code &rest values)
#!+sb-doc
"Cause an error. ERROR-CODE is the error to cause."
- (cons 'progn
- (emit-error-break vop error-trap error-code values)))
+ (emit-error-break vop error-trap (error-number-or-lose error-code) values))
-(defmacro generate-error-code (vop error-code &rest values)
+(defun generate-error-code (vop error-code &rest values)
#!+sb-doc
"Generate-Error-Code Error-code Value*
Emit code for an error with the specified Error-Code and context Values."
- `(assemble (*elsewhere*)
- (let ((start-lab (gen-label)))
- (emit-label start-lab)
- (error-call ,vop ,error-code ,@values)
- start-lab)))
+ (assemble (*elsewhere*)
+ (let ((start-lab (gen-label)))
+ (emit-label start-lab)
+ (emit-error-break vop error-trap (error-number-or-lose error-code) values)
+ start-lab)))
\f
;;;; PSEUDO-ATOMIC
;;; does not matter whether a signal occurs during construction of a
;;; dynamic-extent object, as the half-finished construction of the
;;; object will not cause any difficulty. We can therefore elide
-(defmacro maybe-pseudo-atomic (really-p &body forms)
- `(if ,really-p
+(defmacro maybe-pseudo-atomic (not-really-p &body forms)
+ `(if ,not-really-p
(progn ,@forms)
(pseudo-atomic ,@forms)))
+;;; Unsafely clear pa flags so that the image can properly lose in a
+;;; pa section.
+#!+sb-thread
+(defmacro %clear-pseudo-atomic ()
+ #!+win32
+ `(progn)
+ #!-win32
+ '(inst mov (make-ea :dword :disp (* 4 thread-pseudo-atomic-bits-slot)) 0 :fs))
+
+#!+sb-safepoint
+(defun emit-safepoint ()
+ (inst test eax-tn (make-ea :dword :disp sb!vm::gc-safepoint-page-addr)))
+
#!+sb-thread
(defmacro pseudo-atomic (&rest forms)
+ #!+sb-safepoint-strictly
+ `(progn ,@forms (emit-safepoint))
+ #!-sb-safepoint-strictly
(with-unique-names (label)
`(let ((,label (gen-label)))
- (inst fs-segment-prefix)
- (inst or (make-ea :byte :disp (* 4 thread-pseudo-atomic-bits-slot))
- (fixnumize 1))
+ (inst mov (make-ea :dword :disp (* 4 thread-pseudo-atomic-bits-slot))
+ ebp-tn :fs)
,@forms
- (inst fs-segment-prefix)
- (inst xor (make-ea :byte :disp (* 4 thread-pseudo-atomic-bits-slot))
- (fixnumize 1))
+ (inst xor (make-ea :dword :disp (* 4 thread-pseudo-atomic-bits-slot))
+ ebp-tn :fs)
(inst jmp :z ,label)
- ;; if PAI was set, interrupts were disabled at the same
- ;; time using the process signal mask.
+ ;; if PAI was set, interrupts were disabled at the same time
+ ;; using the process signal mask.
(inst break pending-interrupt-trap)
- (emit-label ,label))))
+ (emit-label ,label)
+ #!+sb-safepoint
+ ;; In this case, when allocation thinks a GC should be done, it
+ ;; does not mark PA as interrupted, but schedules a safepoint
+ ;; trap instead. Let's take the opportunity to trigger that
+ ;; safepoint right now.
+ (emit-safepoint))))
#!-sb-thread
(defmacro pseudo-atomic (&rest forms)
(with-unique-names (label)
`(let ((,label (gen-label)))
- ;; FIXME: The MAKE-EA noise should become a MACROLET macro
- ;; or something. (perhaps SVLB, for static variable low
- ;; byte)
- (inst or (make-ea :byte :disp (+ nil-value
- (static-symbol-offset
- '*pseudo-atomic-bits*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
- (fixnumize 1))
+ (inst mov (make-ea-for-symbol-value *pseudo-atomic-bits* :dword)
+ ebp-tn)
,@forms
- (inst xor (make-ea :byte :disp (+ nil-value
- (static-symbol-offset
- '*pseudo-atomic-bits*)
- (ash symbol-value-slot word-shift)
- (- other-pointer-lowtag)))
- (fixnumize 1))
+ (inst xor (make-ea-for-symbol-value *pseudo-atomic-bits* :dword)
+ ebp-tn)
(inst jmp :z ,label)
- ;; if PAI was set, interrupts were disabled at the same
- ;; time using the process signal mask.
+ ;; if PAI was set, interrupts were disabled at the same time
+ ;; using the process signal mask.
(inst break pending-interrupt-trap)
(emit-label ,label))))
\f
;;;; indexed references
+(defmacro define-full-compare-and-swap
+ (name type offset lowtag scs el-type &optional translate)
+ `(progn
+ (define-vop (,name)
+ ,@(when translate `((:translate ,translate)))
+ (:policy :fast-safe)
+ (:args (object :scs (descriptor-reg) :to :eval)
+ (index :scs (any-reg immediate unsigned-reg) :to :result)
+ (old-value :scs ,scs :target eax)
+ (new-value :scs ,scs))
+ (:arg-types ,type tagged-num ,el-type ,el-type)
+ (:temporary (:sc descriptor-reg :offset eax-offset
+ :from (:argument 2) :to :result :target value) eax)
+ (:results (value :scs ,scs))
+ (:result-types ,el-type)
+ (:generator 5
+ (move eax old-value)
+ (let ((ea (sc-case index
+ (immediate
+ (make-ea :dword :base object
+ :disp (- (* (+ ,offset (tn-value index))
+ n-word-bytes)
+ ,lowtag)))
+ (unsigned-reg
+ (make-ea :dword :base object :index index :scale 4
+ :disp (- (* ,offset n-word-bytes)
+ ,lowtag)))
+ (t
+ (make-ea :dword :base object :index index
+ :disp (- (* ,offset n-word-bytes)
+ ,lowtag))))))
+ (inst cmpxchg ea new-value :lock))
+ (move value eax)))))
+
(defmacro define-full-reffer (name type offset lowtag scs el-type &optional translate)
`(progn
(define-vop (,name)
(move result value)))))
;;; helper for alien stuff.
+
(def!macro with-pinned-objects ((&rest objects) &body body)
"Arrange with the garbage collector that the pages occupied by
OBJECTS will not be moved in memory for the duration of BODY.
Useful for e.g. foreign calls where another thread may trigger
-garbage collection"
- `(multiple-value-prog1
- (progn
- ,@(loop for p in objects
- collect
- ;; There is no race here wrt to gc, because at every
- ;; point during the execution there is a reference to
- ;; P on the stack or in a register.
- `(push-word-on-c-stack
- (int-sap (sb!kernel:get-lisp-obj-address ,p))))
- ,@body)
- ;; If the body returned normally, we should restore the stack pointer
- ;; for the benefit of any following code in the same function. If
- ;; there's a non-local exit in the body, sp is garbage anyway and
- ;; will get set appropriately from {a, the} frame pointer before it's
- ;; next needed
- (pop-words-from-c-stack ,(length objects))))
+collection."
+ (if objects
+ (let ((pins (make-gensym-list (length objects)))
+ (wpo (gensym "WITH-PINNED-OBJECTS-THUNK")))
+ ;; BODY is stuffed in a function to preserve the lexical
+ ;; environment.
+ `(flet ((,wpo () (progn ,@body)))
+ (declare (muffle-conditions compiler-note))
+ ;; PINS are dx-allocated in case the compiler for some
+ ;; unfathomable reason decides to allocate value-cells
+ ;; for them -- since we have DX value-cells on x86oid
+ ;; platforms this still forces them on the stack.
+ (dx-let ,(mapcar #'list pins objects)
+ (multiple-value-prog1 (,wpo)
+ ;; TOUCH-OBJECT has a VOP with an empty body: compiler
+ ;; thinks we're using the argument and doesn't flush
+ ;; the variable, but we don't have to pay any extra
+ ;; beyond that -- and MULTIPLE-VALUE-PROG1 keeps them
+ ;; live till the body has finished. *whew*
+ ,@(mapcar (lambda (pin)
+ `(touch-object ,pin))
+ pins)))))
+ `(progn ,@body)))
+
+;;; Helper to hide the fact that thread access on Windows needs one more
+;;; instruction, needs the FS prefix in that instruction _instead_ of
+;;; the actual load/store, and partially hide the resulting need for a
+;;; temporary TN when the non-windows might have have dereferenced an EA
+;;; without a TN as a base.
+
+(defmacro with-tls-ea ((ea-var &key base
+ base-already-live-p
+ (disp-type :constant)
+ (disp 0))
+ &body body)
+ "Execute BODY with various magic. BODY is expected to emit instructions.
+
+ In the body, EA-VAR will be an alias for an EA which BODY can use to
+ perform a thread-local load or store.
+
+ Within the body, :MAYBE-FS will be replaced with :FS or NIL,
+ depending on the target, and needs to be included in any instruction
+ performing an access through the EA.
+
+ DISP-TYPE must be :INDEX, or :CONSTANT, and DISP must be an EA/TN,
+ or an expression returning an integer, respectively.
+
+ BASE must be a temporary TN, except in the following situation: BASE
+ will be unused when DISP-TYPE is constant, BASE-ALREADY-LIVE-P is
+ true, _and_ we're on POSIX. This is an intentional optimization, and
+ the caller needs to take care to ignore the TN in this case, or can
+ omit this parameter.
+
+ BASE-ALREADY-LIVE-P means that at run-time, the BASE register already
+ holds an offset that we should add to instead of overwriting it.
+ The value of the BASE register is undefined following the macro invocation."
+ (check-type base-already-live-p boolean)
+ (check-type disp-type (member :index :constant))
+ #!-(and win32 sb-thread)
+ (let ((body (subst :fs :maybe-fs body)))
+ (ecase disp-type
+ (:constant
+ `(progn
+ ,@(subst (if base-already-live-p
+ ;; use BASE and DISP
+ `(make-ea :dword :base ,base :disp ,disp)
+ ;; BASE not live and not needed, just use DISP
+ `(make-ea :dword :disp ,disp))
+ ea-var
+ body)))
+ (:index
+ ;; need to use BASE in any case; and DISP is an EA
+ `(progn
+ (inst ,(if base-already-live-p 'add 'mov) ,base ,disp)
+ ,@(subst `(make-ea :dword :base ,base)
+ ea-var
+ body)))))
+ #!+(and win32 sb-thread)
+ ;; goes through a temporary register to add the thread address into it
+ (multiple-value-bind (constant-disp ea-disp)
+ (ecase disp-type
+ (:constant (values disp nil))
+ (:index (values 0 disp)))
+ `(progn
+ ,@(when ea-disp
+ `((inst ,(if base-already-live-p 'add 'mov) ,base ,ea-disp)))
+ (inst ,(if (or base-already-live-p ea-disp) 'add 'mov)
+ ,base
+ (make-ea :dword :disp +win32-tib-arbitrary-field-offset+)
+ :fs)
+ ,@(subst `(make-ea :dword :base ,base :disp ,constant-disp)
+ ea-var
+ (subst nil :maybe-fs body)))))
projects / sbcl.git / blobdiff