4 ;;;; Moves and coercions:
6 ;;; Move a tagged char to an untagged representation.
8 (define-vop (move-to-base-char)
9 (:args (x :scs (any-reg descriptor-reg)))
10 (:results (y :scs (base-char-reg)))
12 (inst srl x n-widetag-bits y)))
14 (define-move-vop move-to-base-char :move
15 (any-reg descriptor-reg) (base-char-reg))
17 ;;; Move an untagged char to a tagged representation.
19 (define-vop (move-from-base-char)
20 (:args (x :scs (base-char-reg)))
21 (:results (y :scs (any-reg descriptor-reg)))
23 (inst sll x n-widetag-bits y)
24 (inst addi base-char-widetag y y)))
26 (define-move-vop move-from-base-char :move
27 (base-char-reg) (any-reg descriptor-reg))
29 ;;; Move untagged base-char values.
31 (define-vop (base-char-move)
34 :load-if (not (location= x y))))
35 (:results (y :scs (base-char-reg)
36 :load-if (not (location= x y))))
42 (define-move-vop base-char-move :move
43 (base-char-reg) (base-char-reg))
46 ;;; Move untagged base-char arguments/return-values.
48 (define-vop (move-base-char-argument)
52 :load-if (not (sc-is y base-char-reg))))
59 (storew x fp (tn-offset y))))))
61 (define-move-vop move-base-char-argument :move-arg
62 (any-reg base-char-reg) (base-char-reg))
65 ;;; Use standard MOVE-ARGUMENT + coercion to move an untagged base-char
66 ;;; to a descriptor passing location.
68 (define-move-vop move-argument :move-arg
69 (base-char-reg) (any-reg descriptor-reg))
73 ;;;; Other operations:
75 (define-vop (char-code)
76 (:translate char-code)
78 (:args (ch :scs (base-char-reg) :target res))
79 (:arg-types base-char)
80 (:results (res :scs (unsigned-reg)))
81 (:result-types positive-fixnum)
85 (define-vop (code-char)
86 (:translate code-char)
88 (:args (code :scs (unsigned-reg) :target res))
89 (:arg-types positive-fixnum)
90 (:results (res :scs (base-char-reg)))
91 (:result-types base-char)
96 ;;; Comparison of base-chars.
98 (define-vop (base-char-compare)
99 (:args (x :scs (base-char-reg))
100 (y :scs (base-char-reg)))
101 (:arg-types base-char base-char)
105 (:note "inline comparison")
108 (inst bc cond not-p x y target)))
110 (define-vop (fast-char=/base-char base-char-compare)
114 (define-vop (fast-char</base-char base-char-compare)
118 (define-vop (fast-char>/base-char base-char-compare)