X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fsparc%2Fparms.lisp;h=666a84f7a4cbf119fa00ad12ce2d94b475ef7347;hb=80f222325e1f677e5cf8de01c6990906fa47f65d;hp=052bf37d20ae2c7962d980830982e6d78963cf05;hpb=08cc6ef646857381452e814cda8e68fccc464f96;p=sbcl.git diff --git a/src/compiler/sparc/parms.lisp b/src/compiler/sparc/parms.lisp index 052bf37..666a84f 100644 --- a/src/compiler/sparc/parms.lisp +++ b/src/compiler/sparc/parms.lisp @@ -12,33 +12,15 @@ ;;;; Machine Architecture parameters: (eval-when (:compile-toplevel :load-toplevel :execute) -(def!constant n-word-bits 32 - #!+sb-doc - "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 - #!+sb-doc - "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))) - #!+sb-doc - "Number of bits to shift between word addresses and byte addresses.") - -(def!constant n-word-bytes (/ n-word-bits n-byte-bits) - #!+sb-doc - "Number of bytes in a word.") - -(def!constant n-fixnum-tag-bits (1- n-lowtag-bits) - #!+sb-doc - "Number of tag bits used for a fixnum") - -(def!constant fixnum-tag-mask (1- (ash 1 n-fixnum-tag-bits)) - #!+sb-doc - "Mask to get the fixnum tag") - -(def!constant n-positive-fixnum-bits (- n-word-bits n-fixnum-tag-bits 1) - #!+sb-doc - "Maximum number of bits in a positive fixnum") +;;; 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) @@ -104,15 +86,6 @@ ); eval-when -;;; NUMBER-STACK-DISPLACEMENT -;;; -;;; The number of bytes reserved above the number stack pointer. These -;;; slots are required by architecture for a place to spill register windows. -;;; -;;; FIXME: Where is this used? -(def!constant number-stack-displacement - (* 16 n-word-bytes)) - ;;;; Description of the target address space. @@ -224,7 +197,7 @@ '(length two-arg-+ two-arg-- two-arg-* two-arg-/ two-arg-< two-arg-> two-arg-= two-arg-<= two-arg->= two-arg-/= eql %negate - two-arg-and two-arg-ior two-arg-xor + two-arg-and two-arg-ior two-arg-xor two-arg-eqv two-arg-gcd two-arg-lcm ))