simdle-universal

Universal wrapper for https://github.com/holepunchto/libsimdle with a JavaScript fallback.

npm install simdle-universal

Usage

const { cnt } = require('simdle-universal')

cnt(Buffer.alloc(16, 0xff))
// <Buffer 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08>

API

The lane width of all APIs is determined by the input buffer. That is, if providing a Uint8Array the lane width will be 8 bits, if providing a Uint16Array the lane width will be 16 bits and so on.

const result = allo(buffer)

Check if the buffer contains only ones.

const result = allz(buffer)

Check if the buffer contains only zeros.

const result = and(a, b[, result])

Compute the bitwise AND of a and b. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = clear(a, b[, result])

Clear the bits in b from a. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = clo(buffer[, result])

Count the number of leading ones in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = clz(buffer[, result])

Count the number of leading zeroes in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = cnt(buffer[, result])

Compute the population count in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = cto(buffer[, result])

Count the number of trailing ones in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = ctz(buffer[, result])

Count the number of trailing zeroes in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = not(buffer[, result])

Compute the bitwise NOT in buffer, storing the result in result. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = or(a, b[, result])

Compute the bitwise OR of a and b. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

const result = sum(buffer)

Compute the sum of buffer as a bigint.

const result = xor(a, b[, result])

Compute the bitwise XOR of a and b. If result is not provided, a fresh buffer is allocated. The result buffer is returned to the caller.

License

ISC