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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 | 50x 50x 2830x 50x 50x 18x 18x 50x 50x 1x 50x 8x 50x 9x 50x 50x 50x 50x 1x 50x 50x 384x 50x 50x 50x 52x 50x 50x 50x 50x 50x | 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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