;;;; machine architecture parameters
;;; the number of bits per word, where a word holds one lisp descriptor
-(defconstant n-word-bits 32)
+(def!constant n-word-bits 32)
+
+;;; the natural width of a machine word (as seen in e.g. register width,
+;;; address space)
+(def!constant n-machine-word-bits 32)
;;; the number of bits per byte, where a byte is the smallest
;;; addressable object
-(defconstant n-byte-bits 8)
+(def!constant n-byte-bits 8)
;;; the number of bits to shift between word addresses and byte addresses
-(defconstant word-shift (1- (integer-length (/ n-word-bits n-byte-bits))))
+(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits))))
;;; the number of bytes in a word
-(defconstant n-word-bytes (/ n-word-bits n-byte-bits))
+(def!constant n-word-bytes (/ n-word-bits n-byte-bits))
-(defconstant float-sign-shift 31)
+(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.
-(defconstant 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:
;;; The 486 book shows the exponent range -126 to +127. The Lisp
;;; code that uses these values seems to want already biased numbers.
-(defconstant single-float-normal-exponent-min 1)
-(defconstant single-float-normal-exponent-max 254)
-(defconstant single-float-hidden-bit (ash 1 23))
-(defconstant single-float-trapping-nan-bit (ash 1 22))
+(def!constant single-float-normal-exponent-min 1)
+(def!constant single-float-normal-exponent-max 254)
+(def!constant single-float-hidden-bit (ash 1 23))
+(def!constant single-float-trapping-nan-bit (ash 1 22))
-(defconstant double-float-bias 1022)
+(def!constant double-float-bias 1022)
(defconstant-eqx double-float-exponent-byte (byte 11 20) #'equalp)
(defconstant-eqx double-float-significand-byte (byte 20 0) #'equalp)
-(defconstant double-float-normal-exponent-min 1)
-(defconstant double-float-normal-exponent-max #x7FE)
-(defconstant double-float-hidden-bit (ash 1 20))
-(defconstant double-float-trapping-nan-bit (ash 1 19))
+(def!constant double-float-normal-exponent-min 1)
+(def!constant double-float-normal-exponent-max #x7FE)
+(def!constant double-float-hidden-bit (ash 1 20))
+(def!constant double-float-trapping-nan-bit (ash 1 19))
-(defconstant long-float-bias 16382)
+(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)
-(defconstant long-float-normal-exponent-min 1)
-(defconstant long-float-normal-exponent-max #x7FFE)
-(defconstant long-float-hidden-bit (ash 1 31)) ; actually not hidden
-(defconstant long-float-trapping-nan-bit (ash 1 30))
+(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))
-(defconstant single-float-digits
+(def!constant single-float-digits
(+ (byte-size single-float-significand-byte) 1))
-(defconstant double-float-digits
+(def!constant double-float-digits
(+ (byte-size double-float-significand-byte) n-word-bits 1))
-(defconstant long-float-digits
+(def!constant long-float-digits
(+ (byte-size long-float-significand-byte) n-word-bits 1))
;;; pfw -- from i486 microprocessor programmer's reference manual
-(defconstant float-invalid-trap-bit (ash 1 0))
-(defconstant float-denormal-trap-bit (ash 1 1))
-(defconstant float-divide-by-zero-trap-bit (ash 1 2))
-(defconstant float-overflow-trap-bit (ash 1 3))
-(defconstant float-underflow-trap-bit (ash 1 4))
-(defconstant float-inexact-trap-bit (ash 1 5))
-
-(defconstant float-round-to-nearest 0)
-(defconstant float-round-to-negative 1)
-(defconstant float-round-to-positive 2)
-(defconstant float-round-to-zero 3)
+(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-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)
-(defconstant float-fast-bit 0) ; no fast mode on x86
+(def!constant float-fast-bit 0) ; no fast mode on x86
\f
;;;; description of the target address space
#!+linux
(progn
- (defconstant read-only-space-start #x01000000)
- (defconstant read-only-space-end #x037ff000)
-
- (defconstant static-space-start #x05000000)
- (defconstant static-space-end #x07fff000)
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x037ff000)
- (defconstant dynamic-space-start #x09000000)
- (defconstant dynamic-space-end #x29000000)
+ (def!constant static-space-start #x05000000)
+ (def!constant static-space-end #x07fff000)
- (defconstant control-stack-start #x50000000)
- (defconstant control-stack-end #x57fff000)
-
- (defconstant binding-stack-start #x60000000)
- (defconstant binding-stack-end #x67fff000))
+ (def!constant dynamic-space-start #x09000000)
+ (def!constant dynamic-space-end #x29000000))
#!+bsd
(progn
- (defconstant read-only-space-start #x10000000)
- (defconstant read-only-space-end #x1ffff000)
+ (def!constant read-only-space-start #x10000000)
+ (def!constant read-only-space-end #x1ffff000)
- (defconstant static-space-start
+ (def!constant static-space-start
#!+freebsd #x30000000
#!+openbsd #x28000000)
- (defconstant static-space-end #x37fff000)
-
- (defconstant binding-stack-start #x38000000)
- (defconstant binding-stack-end #x3ffff000)
-
- (defconstant control-stack-start
- #+freebsd #x40000000
- #+openbsd #x48000000)
- (defconstant control-stack-end
- #+freebsd #x47fff000
- #+openbsd #x4ffff000)
- (defconstant dynamic-space-start
- #+freebsd #x48000000
- #+openbsd #x50000000)
- (defconstant dynamic-space-end #x88000000))
+ (def!constant static-space-end #x37fff000)
+
+ (def!constant dynamic-space-start
+ #!+freebsd #x48000000
+ #!+openbsd #x50000000)
+ (def!constant dynamic-space-end #x88000000))
;;; Given that NIL is the first thing allocated in static space, we
;;; know its value at compile time:
-(defconstant nil-value (+ static-space-start #xb))
+(def!constant nil-value (+ static-space-start #xb))
\f
;;;; other miscellaneous constants
(defvar *allocation-pointer*)
(defvar *binding-stack-pointer*)
-;;; FIXME: *!INITIAL-FDEFN-OBJECTS* and !COLD-INIT probably don't need
-;;; to be in the static symbols table any more. Also, if
-;;; *INTERNAL-GC-TRIGGER* really is not used, we can punt it.
+;;; FIXME: !COLD-INIT probably doesn't need
+;;; to be in the static symbols table any more.
(defparameter *static-symbols*
'(t
;; The C startup code must fill these in.
*posix-argv*
- sb!impl::*!initial-fdefn-objects*
- ;; functions that the C code needs to call
- maybe-gc
+ ;; functions that the C code needs to call. When adding to this list,
+ ;; also add a `frob' form in genesis.lisp finish-symbols.
+ sub-gc
sb!kernel::internal-error
+ sb!kernel::control-stack-exhausted-error
sb!di::handle-breakpoint
fdefinition-object
;; things needed for non-local exit
*current-catch-block*
*current-unwind-protect-block*
- *eval-stack-top*
*alien-stack*
;; interrupt handling
sb!unix::*interrupt-pending*
*free-interrupt-context-index*
+ *free-tls-index*
+ sb!thread::*foreground-thread-stack*
+
*allocation-pointer*
*binding-stack-pointer*
- *internal-gc-trigger* ; Not used.
+ *binding-stack-start*
+ *control-stack-start*
+ *control-stack-end*
;; the floating point constants
*fp-constant-0d0*
*fp-constant-1d0*
- *fp-constant-0s0*
- *fp-constant-1s0*
+ *fp-constant-0f0*
+ *fp-constant-1f0*
;; The following are all long-floats.
*fp-constant-0l0*
*fp-constant-1l0*
projects / sbcl.git / blobdiff