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96 lines
2.3 KiB
Plaintext
96 lines
2.3 KiB
Plaintext
(system-include "carp_byte.h")
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(doc Byte "is the data type for single bytes. Literals of type `Byte` are
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suffixed with `b`.")
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(defmodule Byte
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(register = (λ [Byte Byte] Bool))
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(register copy (λ [&Byte] Byte))
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(register + (λ [Byte Byte] Byte))
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(register - (λ [Byte Byte] Byte))
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(register * (λ [Byte Byte] Byte))
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(register / (λ [Byte Byte] Byte))
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(register < (λ [Byte Byte] Bool))
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(register > (λ [Byte Byte] Bool))
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(register mod (λ [Byte Byte] Byte))
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(register inc (λ [Byte] Byte))
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(register dec (λ [Byte] Byte))
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(register to-int (λ [Byte] Int))
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(register from-int (λ [Int] Byte))
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(defn zero [] 0b)
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(implements = Byte.=)
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(implements copy Byte.copy)
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(implements + Byte.+)
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(implements - Byte.-)
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(implements * Byte.*)
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(implements / Byte./)
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(implements < Byte.<)
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(implements > Byte.>)
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(implements mod Byte.mod)
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(implements inc Byte.inc)
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(implements dec Byte.dec)
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(implements zero Byte.zero)
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(implements to-int Byte.to-int)
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(implements from-int Byte.from-int)
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)
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(defmodule Byte
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(register bit-shift-left (λ [Byte Byte] Byte))
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(register bit-shift-right (λ [Byte Byte] Byte))
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(register bit-and (λ [Byte Byte] Byte))
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(register bit-or (λ [Byte Byte] Byte))
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(register bit-xor (λ [Byte Byte] Byte))
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(register bit-not (λ [Byte] Byte))
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(implements bit-shift-left Byte.bit-shift-left)
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(implements bit-shift-right Byte.bit-shift-right)
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(implements bit-and Byte.bit-and)
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(implements bit-or Byte.bit-or)
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(implements bit-xor Byte.bit-xor)
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(implements bit-not Byte.bit-not)
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(defn even? [a] (= (mod a 2b) 0b))
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(defn odd? [a] (not (even? a)))
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(defn add-ref [x y]
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(Byte.+ @x @y))
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;; Move to generic math module?
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(defn clamp [min, max, val]
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(if (> val max)
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max
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(if (< val min)
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min
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val)))
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(doc pow "Raise x to the power of y.")
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(defn pow [x y]
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(let-do [r 1b]
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(while (/= y 0b)
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(do
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(when (/= (bit-and y 1b) 0b)
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(set! r (* r x)))
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(set! y (/ y 2b))
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(set! x (* x x))))
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r))
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(implements pow Byte.pow)
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(implements add-ref Byte.add-ref)
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)
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(defmodule ByteRef
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(defn = [a b]
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(Byte.= @a @b))
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(defn < [a b]
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(Byte.< @a @b))
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(defn > [a b]
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(Byte.> @a @b))
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(implements = ByteRef.=)
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(implements < ByteRef.<)
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(implements > ByteRef.>)
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)
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