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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | 76x 76x 6410347x 76x 76x 16x 16x 76x 11x 76x 18x 76x 8x 76x 9x 76x 8x 76x 9x 76x 9x 76x 10x 76x 101x 538x 76x 76x 76x 11x 11x 8x 3x 76x 76x 8x 8x 8x 8x 76x 76x 76x 76x | export const SIGNED_16BIT_MAX = 32767;
export const SIGNED_16BIT_MIN = -32768;
export const wrap8Bit = (val: number) => (256 + (val % 256)) % 256;
export const wrap16Bit = (val: number) => (65536 + (val % 65536)) % 65536;
export const wrapSigned8Bit = (val: number) => {
const u = wrap8Bit(val);
return u >= 128 ? u - 256 : u;
};
export const clampSigned16Bit = (val: number) =>
Math.max(SIGNED_16BIT_MIN, Math.min(SIGNED_16BIT_MAX, val));
export const wrap32Bit = (val: number) =>
(4294967296 + (val % 4294967296)) % 4294967296;
export const decBin = (dec: number) =>
wrap8Bit(dec).toString(2).padStart(8, "0");
export const decHex = (dec: number) =>
`0x${wrap8Bit(dec).toString(16).padStart(2, "0").toUpperCase()}`;
export const decHexVal = (dec: number) =>
wrap8Bit(dec).toString(16).padStart(2, "0").toUpperCase();
export const decHex16 = (dec: number) =>
`0x${wrap16Bit(dec).toString(16).padStart(4, "0").toUpperCase()}`;
export const decHex16Val = (dec: number) =>
wrap16Bit(dec).toString(16).padStart(4, "0").toUpperCase();
export const decHex32Val = (dec: number) =>
wrap32Bit(dec).toString(16).padStart(8, "0").toUpperCase();
export const decOct = (dec: number) =>
wrap8Bit(dec).toString(8).padStart(3, "0");
export const hexDec = (hex: string) => parseInt(hex, 16);
export const hi = (longNum: number) => wrap16Bit(longNum) >> 8;
export const lo = (longNum: number) => wrap16Bit(longNum) % 256;
export const fromSigned8Bit = (num: number): number => {
const masked = num & 0xff;
if (masked & 0x80) {
return masked - 0x100;
} else {
return masked;
}
};
export const divisibleBy8 = (n: number) => (n >> 3) << 3 === n;
export const convertHexTo15BitDec = (hex: string) => {
const r = Math.floor(hexDec(hex.substring(0, 2)) * (32 / 256));
const g = Math.floor(hexDec(hex.substring(2, 4)) * (32 / 256));
const b = Math.max(1, Math.floor(hexDec(hex.substring(4, 6)) * (32 / 256)));
return (b << 10) + (g << 5) + r;
};
export const roundDown8 = (v: number): number => 8 * Math.floor(v / 8);
export const roundDown16 = (v: number): number => 16 * Math.floor(v / 16);
export const roundUp16 = (x: number): number => Math.ceil(x / 16) * 16;
export const roundUp8 = (x: number): number => Math.ceil(x / 8) * 8;
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