;;; addressable object
(def!constant n-byte-bits 8)
+;;; The size in bytes of the GENCGC pages. Should be a multiple of the
+;;; architecture code size.
+(def!constant gencgc-page-size 4096)
+
(def!constant float-sign-shift 31)
;;; comment from CMU CL:
;;; These values were taken from the alpha code. The values for
;;; bias and exponent min/max are not the same as shown in the 486 book.
;;; They may be correct for how Python uses them.
-(def!constant single-float-bias 126) ; Intel says 127.
+(def!constant single-float-bias 126) ; Intel says 127.
(defconstant-eqx single-float-exponent-byte (byte 8 23) #'equalp)
(defconstant-eqx single-float-significand-byte (byte 23 0) #'equalp)
;;; comment from CMU CL:
(def!constant double-float-hidden-bit (ash 1 20))
(def!constant double-float-trapping-nan-bit (ash 1 19))
-(def!constant long-float-bias 16382)
-(defconstant-eqx long-float-exponent-byte (byte 15 0) #'equalp)
-(defconstant-eqx long-float-significand-byte (byte 31 0) #'equalp)
-(def!constant long-float-normal-exponent-min 1)
-(def!constant long-float-normal-exponent-max #x7FFE)
-(def!constant long-float-hidden-bit (ash 1 31)) ; actually not hidden
-(def!constant long-float-trapping-nan-bit (ash 1 30))
-
(def!constant single-float-digits
(+ (byte-size single-float-significand-byte) 1))
(def!constant double-float-digits
(+ (byte-size double-float-significand-byte) 32 1))
-(def!constant long-float-digits
- (+ (byte-size long-float-significand-byte) 32 1))
-
-;;; pfw -- from i486 microprocessor programmer's reference manual
-(def!constant float-invalid-trap-bit (ash 1 0))
+;;; from AMD64 Architecture manual
+(def!constant float-invalid-trap-bit (ash 1 0))
(def!constant float-denormal-trap-bit (ash 1 1))
(def!constant float-divide-by-zero-trap-bit (ash 1 2))
(def!constant float-overflow-trap-bit (ash 1 3))
(def!constant float-underflow-trap-bit (ash 1 4))
-(def!constant float-inexact-trap-bit (ash 1 5))
+(def!constant float-inexact-trap-bit (ash 1 5))
(def!constant float-round-to-nearest 0)
(def!constant float-round-to-negative 1)
(def!constant float-round-to-positive 2)
(def!constant float-round-to-zero 3)
-(defconstant-eqx float-rounding-mode (byte 2 10) #'equalp)
-(defconstant-eqx float-sticky-bits (byte 6 16) #'equalp)
-(defconstant-eqx float-traps-byte (byte 6 0) #'equalp)
-(defconstant-eqx float-exceptions-byte (byte 6 16) #'equalp)
-(defconstant-eqx float-precision-control (byte 2 8) #'equalp)
-(def!constant float-fast-bit 0) ; no fast mode on x86
+(defconstant-eqx float-rounding-mode (byte 2 13) #'equalp)
+(defconstant-eqx float-sticky-bits (byte 6 0) #'equalp)
+(defconstant-eqx float-traps-byte (byte 6 7) #'equalp)
+(defconstant-eqx float-exceptions-byte (byte 6 0) #'equalp)
+(def!constant float-fast-bit 0) ; no fast mode on x86-64
\f
;;;; description of the target address space
;;; where to put the different spaces.
+;;; Currently the read-only and static spaces must be located in low
+;;; memory (certainly under the 4GB limit, very probably under 2GB
+;;; limit). This is due to the inability of using immediate values of
+;;; more than 32 bits (31 bits if you take sign extension into
+;;; account) in any other instructions except MOV. Removing this limit
+;;; would be possible, but probably not worth the time and code bloat
+;;; it would cause. -- JES, 2005-12-11
+
(def!constant read-only-space-start #x20000000)
(def!constant read-only-space-end #x27ff0000)
sb!kernel::memory-fault-error
sb!di::handle-breakpoint
fdefinition-object
- #!+sb-thread sb!thread::handle-thread-exit
;; free pointers
- ;;
+ ;;
;; Note that these are FIXNUM word counts, not (as one might
;; expect) byte counts or SAPs. The reason seems to be that by
- ;; representing them this way, we can avoid consing bignums.
+ ;; representing them this way, we can avoid consing bignums.
;; -- WHN 2000-10-02
*read-only-space-free-pointer*
*static-space-free-pointer*
sb!unix::*interrupts-enabled*
sb!unix::*interrupt-pending*
*free-interrupt-context-index*
+ *gc-inhibit*
+ #!+sb-thread *stop-for-gc-pending*
+ *gc-pending*
+ #!+sb-thread sb!thread::run-interruption
*free-tls-index*
-
+ *tls-index-lock*
+
*allocation-pointer*
*binding-stack-pointer*
*binding-stack-start*
*fp-constant-1d0*
*fp-constant-0f0*
*fp-constant-1f0*
- ;; The following are all long-floats.
- *fp-constant-0l0*
- *fp-constant-1l0*
- *fp-constant-pi*
- *fp-constant-l2t*
- *fp-constant-l2e*
- *fp-constant-lg2*
- *fp-constant-ln2*
+
+ ;; For GC-AND-SAVE
+ *restart-lisp-function*
;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the
;; common slot unbound check.
sb!kernel:two-arg-xor
sb!kernel:two-arg-gcd
sb!kernel:two-arg-lcm))
-\f
-;;;; stuff added by jrd
-
-;;; FIXME: Is this used? Delete it or document it.
-;;; cf the sparc PARMS.LISP
-(defparameter *assembly-unit-length* 8)
projects / sbcl.git / blobdiff