-(in-package "SB!VM")
+;;;; the VM definition arithmetic VOPs for MIPS
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
+(in-package "SB!VM")
\f
;;;; Unary operations.
(:results (result :scs (unsigned-reg)))
(:result-types unsigned-num)
(:generator 1
- (cond ((< count 0)
- ;; It is a right shift.
- (inst srl result number (min (- count) 31)))
- ((> count 0)
- ;; It is a left shift.
- (inst sll result number (min count 31)))
- (t
- ;; Count=0? Shouldn't happen, but it's easy:
- (move result number)))))
+ (cond
+ ((< count -31) (move result zero-tn))
+ ((< count 0) (inst srl result number (min (- count) 31)))
+ ((> count 0) (inst sll result number (min count 31)))
+ (t (bug "identity ASH not transformed away")))))
(define-vop (fast-ash-c/signed=>signed)
(:policy :fast-safe)
(:results (result :scs (signed-reg)))
(:result-types signed-num)
(:generator 1
- (cond ((< count 0)
- ;; It is a right shift.
- (inst sra result number (min (- count) 31)))
- ((> count 0)
- ;; It is a left shift.
- (inst sll result number (min count 31)))
- (t
- ;; Count=0? Shouldn't happen, but it's easy:
- (move result number)))))
+ (cond
+ ((< count 0) (inst sra result number (min (- count) 31)))
+ ((> count 0) (inst sll result number (min count 31)))
+ (t (bug "identity ASH not transformed away")))))
(define-vop (signed-byte-32-len)
(:translate integer-length)
(:translate +-mod32))
(define-vop (fast-+-mod32-c/unsigned=>unsigned fast-+-c/unsigned=>unsigned)
(:translate +-mod32))
+(define-modular-fun --mod32 (x y) - 32)
+(define-vop (fast---mod32/unsigned=>unsigned fast--/unsigned=>unsigned)
+ (:translate --mod32))
+(define-vop (fast---mod32-c/unsigned=>unsigned fast---c/unsigned=>unsigned)
+ (:translate --mod32))
+
+(define-vop (fast-ash-left-mod32-c/unsigned=>unsigned
+ fast-ash-c/unsigned=>unsigned)
+ (:translate ash-left-mod32))
;;; logical operations
(define-modular-fun lognot-mod32 (x) lognot 32)
;;;; Bignum stuff.
(define-vop (bignum-length get-header-data)
- (:translate sb!bignum::%bignum-length)
+ (:translate sb!bignum:%bignum-length)
(:policy :fast-safe))
(define-vop (bignum-set-length set-header-data)
- (:translate sb!bignum::%bignum-set-length)
+ (:translate sb!bignum:%bignum-set-length)
(:policy :fast-safe))
(define-full-reffer bignum-ref * bignum-digits-offset other-pointer-lowtag
- (unsigned-reg) unsigned-num sb!bignum::%bignum-ref)
+ (unsigned-reg) unsigned-num sb!bignum:%bignum-ref)
(define-full-setter bignum-set * bignum-digits-offset other-pointer-lowtag
- (unsigned-reg) unsigned-num sb!bignum::%bignum-set)
+ (unsigned-reg) unsigned-num sb!bignum:%bignum-set)
(define-vop (digit-0-or-plus)
- (:translate sb!bignum::%digit-0-or-plusp)
+ (:translate sb!bignum:%digit-0-or-plusp)
(:policy :fast-safe)
(:args (digit :scs (unsigned-reg)))
(:arg-types unsigned-num)
(inst nop)))
(define-vop (add-w/carry)
- (:translate sb!bignum::%add-with-carry)
+ (:translate sb!bignum:%add-with-carry)
(:policy :fast-safe)
(:args (a :scs (unsigned-reg))
(b :scs (unsigned-reg))
(move result res))))
(define-vop (sub-w/borrow)
- (:translate sb!bignum::%subtract-with-borrow)
+ (:translate sb!bignum:%subtract-with-borrow)
(:policy :fast-safe)
(:args (a :scs (unsigned-reg))
(b :scs (unsigned-reg))
(move result res))))
(define-vop (bignum-mult-and-add-3-arg)
- (:translate sb!bignum::%multiply-and-add)
+ (:translate sb!bignum:%multiply-and-add)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg))
(y :scs (unsigned-reg))
(inst addu hi temp)))
(define-vop (bignum-mult-and-add-4-arg)
- (:translate sb!bignum::%multiply-and-add)
+ (:translate sb!bignum:%multiply-and-add)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg))
(y :scs (unsigned-reg))
(inst addu hi temp)))
(define-vop (bignum-mult)
- (:translate sb!bignum::%multiply)
+ (:translate sb!bignum:%multiply)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg))
(y :scs (unsigned-reg)))
(inst mfhi hi)))
(define-vop (bignum-lognot lognot-mod32/unsigned=>unsigned)
- (:translate sb!bignum::%lognot))
+ (:translate sb!bignum:%lognot))
(define-vop (fixnum-to-digit)
- (:translate sb!bignum::%fixnum-to-digit)
+ (:translate sb!bignum:%fixnum-to-digit)
(:policy :fast-safe)
(:args (fixnum :scs (any-reg)))
(:arg-types tagged-num)
(inst sra digit fixnum 2)))
(define-vop (bignum-floor)
- (:translate sb!bignum::%floor)
+ (:translate sb!bignum:%floor)
(:policy :fast-safe)
(:args (num-high :scs (unsigned-reg) :target rem)
(num-low :scs (unsigned-reg) :target rem-low)
(inst nor quo zero-tn)))
(define-vop (signify-digit)
- (:translate sb!bignum::%fixnum-digit-with-correct-sign)
+ (:translate sb!bignum:%fixnum-digit-with-correct-sign)
(:policy :fast-safe)
(:args (digit :scs (unsigned-reg) :target res))
(:arg-types unsigned-num)
(define-vop (digit-ashr)
- (:translate sb!bignum::%ashr)
+ (:translate sb!bignum:%ashr)
(:policy :fast-safe)
(:args (digit :scs (unsigned-reg))
(count :scs (unsigned-reg)))
(inst sra result digit count)))
(define-vop (digit-lshr digit-ashr)
- (:translate sb!bignum::%digit-logical-shift-right)
+ (:translate sb!bignum:%digit-logical-shift-right)
(:generator 1
(inst srl result digit count)))
(define-vop (digit-ashl digit-ashr)
- (:translate sb!bignum::%ashl)
+ (:translate sb!bignum:%ashl)
(:generator 1
(inst sll result digit count)))
projects / sbcl.git / blobdiff