\f
;;;; Machine Architecture parameters:
-(def!constant n-word-bits 32
- "Number of bits per word where a word holds one lisp descriptor.")
+;;; number of bits per word where a word holds one lisp descriptor
+(def!constant n-word-bits 32)
-(def!constant n-byte-bits 8
- "Number of bits per byte where a byte is the smallest addressable object.")
+;;; the natural width of a machine word (as seen in e.g. register width,
+;;; address space)
+(def!constant n-machine-word-bits 32)
-(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits)))
- "Number of bits to shift between word addresses and byte addresses.")
-
-(def!constant n-word-bytes (/ n-word-bits n-byte-bits)
- "Number of bytes in a word.")
+;;; number of bits per byte where a byte is the smallest addressable
+;;; object
+(def!constant n-byte-bits 8)
(def!constant float-sign-shift 31)
(def!constant static-space-start #x28000000)
(def!constant static-space-end #x2a000000)
-(def!constant dynamic-space-start #x30000000)
-(def!constant dynamic-space-end #x37fff000)
-
(def!constant dynamic-0-space-start #x30000000)
(def!constant dynamic-0-space-end #x37fff000)
(def!constant dynamic-1-space-start #x38000000)
sb!impl::sub-gc
sb!kernel::internal-error
sb!kernel::control-stack-exhausted-error
+ sb!kernel::undefined-alien-variable-error
+ sb!kernel::undefined-alien-function-error
sb!di::handle-breakpoint
sb!impl::fdefinition-object