;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
-(in-package "SB!SYS")
-;;; FIXME: Shouldn't these be IN-PACKAGE SB!KERNEL instead? (They're
-;;; not dependent on the OS, only on the CPU architecture.)
-\f
-;;;; primitive SAP operations
+(in-package "SB!KERNEL")
+;;; Return T iff the SAP X points to a smaller address then the SAP Y.
(defun sap< (x y)
- #!+sb-doc
- "Return T iff the SAP X points to a smaller address then the SAP Y."
(declare (type system-area-pointer x y))
(sap< x y))
+;;; Return T iff the SAP X points to a smaller or the same address as
+;;; the SAP Y.
(defun sap<= (x y)
- #!+sb-doc
- "Return T iff the SAP X points to a smaller or the same address as
- the SAP Y."
(declare (type system-area-pointer x y))
(sap<= x y))
+;;; Return T iff the SAP X points to the same address as the SAP Y.
(defun sap= (x y)
- #!+sb-doc
- "Return T iff the SAP X points to the same address as the SAP Y."
(declare (type system-area-pointer x y))
(sap= x y))
+;;; Return T iff the SAP X points to a larger or the same address as
+;;; the SAP Y.
(defun sap>= (x y)
- #!+sb-doc
- "Return T iff the SAP X points to a larger or the same address as
- the SAP Y."
(declare (type system-area-pointer x y))
(sap>= x y))
+;;; Return T iff the SAP X points to a larger address then the SAP Y.
(defun sap> (x y)
- #!+sb-doc
- "Return T iff the SAP X points to a larger address then the SAP Y."
(declare (type system-area-pointer x y))
(sap> x y))
+;;; Return a new SAP, OFFSET bytes from SAP.
(defun sap+ (sap offset)
- #!+sb-doc
- "Return a new sap OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (type (signed-byte #.sb!vm:n-word-bits) offset))
(sap+ sap offset))
+;;; Return the byte offset between SAP1 and SAP2.
(defun sap- (sap1 sap2)
- #!+sb-doc
- "Return the byte offset between SAP1 and SAP2."
(declare (type system-area-pointer sap1 sap2))
(sap- sap1 sap2))
+;;; Convert SAP into an integer.
(defun sap-int (sap)
- #!+sb-doc
- "Converts a System Area Pointer into an integer."
(declare (type system-area-pointer sap))
(sap-int sap))
+;;; Convert an integer into a SAP.
(defun int-sap (int)
- #!+sb-doc
- "Converts an integer into a System Area Pointer."
- (declare (type sap-int-type int))
+ (declare (type sap-int int))
(int-sap int))
+;;; Return the 8-bit byte at OFFSET bytes from SAP.
(defun sap-ref-8 (sap offset)
- #!+sb-doc
- "Returns the 8-bit byte at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-8 sap offset))
+(defun sap-ref-octets (sap offset count)
+ (declare (type system-area-pointer sap)
+ (fixnum offset count))
+ (let ((buffer (make-array count :element-type '(unsigned-byte 8))))
+ (dotimes (i count)
+ (setf (aref buffer i) (sap-ref-8 sap (+ offset i))))
+ buffer))
+
+;;; Return the 16-bit word at OFFSET bytes from SAP.
(defun sap-ref-16 (sap offset)
- #!+sb-doc
- "Returns the 16-bit word at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-16 sap offset))
+;;; Returns the 32-bit dualword at OFFSET bytes from SAP.
(defun sap-ref-32 (sap offset)
- #!+sb-doc
- "Returns the 32-bit dualword at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-32 sap offset))
-#!+alpha
+;;; Return the 64-bit quadword at OFFSET bytes from SAP.
(defun sap-ref-64 (sap offset)
- #!+sb-doc
- "Returns the 64-bit quadword at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-64 sap offset))
+;;; Return the unsigned word of natural size OFFSET bytes from SAP.
+(defun sap-ref-word (sap offset)
+ (declare (type system-area-pointer sap)
+ (fixnum offset))
+ (sap-ref-word sap offset))
+
+;;; Return the 32-bit SAP at OFFSET bytes from SAP.
(defun sap-ref-sap (sap offset)
- #!+sb-doc
- "Returns the 32-bit system-area-pointer at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-sap sap offset))
+;; Return the LISPOBJ at OFFSET bytes from SAP.
+(defun sap-ref-lispobj (sap offset)
+ (declare (type system-area-pointer sap)
+ (fixnum offset))
+ (sap-ref-lispobj sap offset))
+
+;;; Return the 32-bit SINGLE-FLOAT at OFFSET bytes from SAP.
(defun sap-ref-single (sap offset)
- #!+sb-doc
- "Returns the 32-bit single-float at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-single sap offset))
+;;; Return the 64-bit DOUBLE-FLOAT at OFFSET bytes from SAP.
(defun sap-ref-double (sap offset)
- #!+sb-doc
- "Returns the 64-bit double-float at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-double sap offset))
+;;; Return the LONG-FLOAT at OFFSET bytes from SAP.
#!+(or x86 long-float)
(defun sap-ref-long (sap offset)
- #!+sb-doc
- "Returns the long-float at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(sap-ref-long sap offset))
+;;; Return the signed 8-bit byte at OFFSET bytes from SAP.
(defun signed-sap-ref-8 (sap offset)
- #!+sb-doc
- "Returns the signed 8-bit byte at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(signed-sap-ref-8 sap offset))
+;;; Return the signed 16-bit word at OFFSET bytes from SAP.
(defun signed-sap-ref-16 (sap offset)
- #!+sb-doc
- "Returns the signed 16-bit word at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(signed-sap-ref-16 sap offset))
+;;; Return the signed 32-bit dualword at OFFSET bytes from SAP.
(defun signed-sap-ref-32 (sap offset)
- #!+sb-doc
- "Returns the signed 32-bit dualword at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(signed-sap-ref-32 sap offset))
-#!+alpha
+;;; Return the signed 64-bit quadword at OFFSET bytes from SAP.
(defun signed-sap-ref-64 (sap offset)
- #!+sb-doc
- "Returns the signed 64-bit quadword at OFFSET bytes from SAP."
(declare (type system-area-pointer sap)
- (fixnum offset))
+ (fixnum offset))
(signed-sap-ref-64 sap offset))
+;;; Return the signed word of natural size OFFSET bytes from SAP.
+(defun signed-sap-ref-word (sap offset)
+ (declare (type system-area-pointer sap)
+ (fixnum offset))
+ (signed-sap-ref-word sap offset))
+
(defun %set-sap-ref-8 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (unsigned-byte 8) new-value))
+ (fixnum offset)
+ (type (unsigned-byte 8) new-value))
(setf (sap-ref-8 sap offset) new-value))
(defun %set-sap-ref-16 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (unsigned-byte 16) new-value))
+ (fixnum offset)
+ (type (unsigned-byte 16) new-value))
(setf (sap-ref-16 sap offset) new-value))
(defun %set-sap-ref-32 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (unsigned-byte 32) new-value))
+ (fixnum offset)
+ (type (unsigned-byte 32) new-value))
(setf (sap-ref-32 sap offset) new-value))
-#!+alpha
(defun %set-sap-ref-64 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (unsigned-byte 64) new-value))
+ (fixnum offset)
+ (type (unsigned-byte 64) new-value))
(setf (sap-ref-64 sap offset) new-value))
+(defun %set-sap-ref-word (sap offset new-value)
+ (declare (type system-area-pointer sap)
+ (fixnum offset)
+ (type (unsigned-byte #.sb!vm:n-machine-word-bits) new-value))
+ (setf (sap-ref-word sap offset) new-value))
+
(defun %set-signed-sap-ref-8 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (signed-byte 8) new-value))
+ (fixnum offset)
+ (type (signed-byte 8) new-value))
(setf (signed-sap-ref-8 sap offset) new-value))
(defun %set-signed-sap-ref-16 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (signed-byte 16) new-value))
+ (fixnum offset)
+ (type (signed-byte 16) new-value))
(setf (signed-sap-ref-16 sap offset) new-value))
(defun %set-signed-sap-ref-32 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (signed-byte 32) new-value))
+ (fixnum offset)
+ (type (signed-byte 32) new-value))
(setf (signed-sap-ref-32 sap offset) new-value))
-#!+alpha
(defun %set-signed-sap-ref-64 (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type (signed-byte 64) new-value))
+ (fixnum offset)
+ (type (signed-byte 64) new-value))
(setf (signed-sap-ref-64 sap offset) new-value))
+(defun %set-signed-sap-ref-word (sap offset new-value)
+ (declare (type system-area-pointer sap)
+ (fixnum offset)
+ (type (signed-byte #.sb!vm:n-machine-word-bits) new-value))
+ (setf (signed-sap-ref-word sap offset) new-value))
+
(defun %set-sap-ref-sap (sap offset new-value)
(declare (type system-area-pointer sap new-value)
- (fixnum offset))
+ (fixnum offset))
(setf (sap-ref-sap sap offset) new-value))
+(defun %set-sap-ref-lispobj (sap offset new-value)
+ (declare (type system-area-pointer sap)
+ (fixnum offset)
+ (t new-value))
+ (setf (sap-ref-lispobj sap offset) new-value))
+
(defun %set-sap-ref-single (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type single-float new-value))
+ (fixnum offset)
+ (type single-float new-value))
(setf (sap-ref-single sap offset) new-value))
(defun %set-sap-ref-double (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type double-float new-value))
+ (fixnum offset)
+ (type double-float new-value))
(setf (sap-ref-double sap offset) new-value))
#!+long-float
(defun %set-sap-ref-long (sap offset new-value)
(declare (type system-area-pointer sap)
- (fixnum offset)
- (type long-float new-value))
+ (fixnum offset)
+ (type long-float new-value))
(setf (sap-ref-long sap offset) new-value))
-\f
-;;;; system memory allocation
-
-(sb!alien:def-alien-routine ("os_allocate" allocate-system-memory)
- system-area-pointer
- (bytes sb!c-call:unsigned-long))
-
-(sb!alien:def-alien-routine ("os_allocate_at" allocate-system-memory-at)
- system-area-pointer
- (address system-area-pointer)
- (bytes sb!c-call:unsigned-long))
-
-(sb!alien:def-alien-routine ("os_reallocate" reallocate-system-memory)
- system-area-pointer
- (old system-area-pointer)
- (old-size sb!c-call:unsigned-long)
- (new-size sb!c-call:unsigned-long))
-
-(sb!alien:def-alien-routine ("os_deallocate" deallocate-system-memory)
- sb!c-call:void
- (addr system-area-pointer)
- (bytes sb!c-call:unsigned-long))
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