82 lines
1.3 KiB
OCaml
82 lines
1.3 KiB
OCaml
open import "prelude.ml"
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open import "./decode.ml"
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open import "../dolphin.ml"
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type u8 =
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U8 of int
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instance show u8 begin
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let show (U8 x) = (show x) ^ "_u8"
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end
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instance decode u8 begin
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let decode addr = U8 (Dolphin.read_value_8 addr)
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end
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type s8 =
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S8 of int
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instance show s8 begin
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let show (S8 x) = (show x) ^ "_s8"
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end
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instance decode s8 begin
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let decode addr =
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let u8 = Dolphin.read_value_8 addr
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let signfix =
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if u8 > 127 then
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negate (256 - u8)
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else
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u8
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S8 signfix
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end
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type u16 =
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U16 of int
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instance show u16 begin
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let show (U16 x) = (show x) ^ "_u16"
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end
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instance decode u16 begin
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let decode addr = U16 (Dolphin.read_value_16 addr)
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end
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type s16 =
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S16 of int
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instance show s16 begin
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let show (S16 x) = (show x) ^ "_s16"
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end
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instance decode s16 begin
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let decode addr =
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let u16 = Dolphin.read_value_16 addr
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let signfix =
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if u16 > 32767 then
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negate (65536 - u16)
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else
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u16
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S16 signfix
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end
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type u32 =
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U32 of int
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instance show u32 begin
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let show (U32 x) = (show x) ^ "_u32"
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end
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type s32 =
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S32 of int
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instance show s32 begin
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let show (S32 x) =
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let signfix =
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if x > 2147483647 then
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negate (4294967296 - x)
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else
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x
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(show signfix) ^ "_s32"
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end
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