(eval-when (:compile-toplevel :load-toplevel :execute)
-(defconstant n-word-bits 32
+(def!constant n-word-bits 32
#!+sb-doc
"Number of bits per word where a word holds one lisp descriptor.")
-(defconstant n-byte-bits 8
+(def!constant n-byte-bits 8
#!+sb-doc
"Number of bits per byte where a byte is the smallest addressable object.")
-(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)))
#!+sb-doc
"Number of bits to shift between word addresses and byte addresses.")
-(defconstant n-word-bytes (/ n-word-bits n-byte-bits)
+(def!constant n-word-bytes (/ n-word-bits n-byte-bits)
#!+sb-doc
"Number of bytes in a word.")
-(defconstant float-sign-shift 31)
+(def!constant float-sign-shift 31)
-(defconstant single-float-bias 126)
+(def!constant single-float-bias 126)
(defconstant-eqx single-float-exponent-byte (byte 8 23) #'equalp)
(defconstant-eqx single-float-significand-byte (byte 23 0) #'equalp)
-(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 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))
;;; These values are originally from the DEC Assembly Language
;;; <machine/fpu.h>
;;; trap enables are set in software (fp_control)
-(defconstant float-inexact-trap-bit (ash 1 4)) ; rw
-(defconstant float-underflow-trap-bit (ash 1 3)) ; rw
-(defconstant float-overflow-trap-bit (ash 1 2)) ; ro
-(defconstant float-divide-by-zero-trap-bit (ash 1 1)) ; ro
-(defconstant float-invalid-trap-bit (ash 1 0)) ; ro
+(def!constant float-inexact-trap-bit (ash 1 4)) ; rw
+(def!constant float-underflow-trap-bit (ash 1 3)) ; rw
+(def!constant float-overflow-trap-bit (ash 1 2)) ; ro
+(def!constant float-divide-by-zero-trap-bit (ash 1 1)) ; ro
+(def!constant float-invalid-trap-bit (ash 1 0)) ; ro
(defconstant-eqx float-traps-byte (byte 6 1) #'equalp)
;;; exceptions are also read/written in software (by syscalls, no less).
(defconstant-eqx float-exceptions-byte (byte 6 17) #'equalp)
;;; Rounding modes can only be set by frobbing the hardware fpcr directly
-(defconstant float-round-to-zero 0)
-(defconstant float-round-to-negative 1)
-(defconstant float-round-to-nearest 2)
-(defconstant float-round-to-positive 3)
+(def!constant float-round-to-zero 0)
+(def!constant float-round-to-negative 1)
+(def!constant float-round-to-nearest 2)
+(def!constant float-round-to-positive 3)
(defconstant-eqx float-rounding-mode (byte 2 58) #'equalp)
;;; Miscellaneous stuff - I think it's far to say that you deserve
;;; what you get if you ask for fast mode.
-(defconstant float-fast-bit 0)
+(def!constant float-fast-bit 0)
); eval-when
#!+linux
(progn
- (defconstant read-only-space-start #x20000000)
- (defconstant read-only-space-end #x24000000)
+ (def!constant read-only-space-start #x20000000)
+ (def!constant read-only-space-end #x24000000)
- (defconstant static-space-start #x28000000)
- (defconstant static-space-end #x2c000000)
+ (def!constant static-space-start #x28000000)
+ (def!constant static-space-end #x2c000000)
;; this is used in PURIFY as part of a sloppy check to see if a pointer
;; is in dynamic space. Chocolate brownie for the first person to fix it
;; -dan 20010502
- (defconstant dynamic-space-start #x30000000)
- (defconstant dynamic-space-end #x3fff0000)
+ (def!constant dynamic-space-start #x30000000)
+ (def!constant dynamic-space-end #x3fff0000)
- (defconstant dynamic-0-space-start #x30000000)
- (defconstant dynamic-0-space-end #x3fff0000)
+ (def!constant dynamic-0-space-start #x30000000)
+ (def!constant dynamic-0-space-end #x3fff0000)
- (defconstant dynamic-1-space-start #x40000000)
- (defconstant dynamic-1-space-end #x4fff0000)
+ (def!constant dynamic-1-space-start #x40000000)
+ (def!constant dynamic-1-space-end #x4fff0000)
- (defconstant control-stack-start #x50000000)
- (defconstant control-stack-end #x51000000)
+ (def!constant control-stack-start #x50000000)
+ (def!constant control-stack-end #x51000000)
- (defconstant binding-stack-start #x70000000)
- (defconstant binding-stack-end #x71000000))
+ (def!constant binding-stack-start #x70000000)
+ (def!constant binding-stack-end #x71000000))
#!+osf1 ;as if
(progn
;;; backend, so they could probably be removed.
;; The space-register holding the lisp heap.
-(defconstant lisp-heap-space 4)
+(def!constant lisp-heap-space 4)
;; The space-register holding the C text segment.
-(defconstant c-text-space 4)
+(def!constant c-text-space 4)
;;; the X86 port defines *nil-value* as (+ *target-static-space-start* #xB)
;;; here, but it seems to be the only port that needs to know the
projects / sbcl.git / blobdiff