package main

import "encoding/binary"

// Helpers for converting straight from modbus data to floats.

func u16(data []byte) float64 {
	return float64(binary.BigEndian.Uint16(data))
}

func s16(data []byte) float64 {
	return float64(int16(binary.BigEndian.Uint16(data)))
}

func u32(data []byte) float64 {
	// Little-endian big-endian :#
	return float64(uint32(binary.BigEndian.Uint16(data)) + uint32(binary.BigEndian.Uint16(data[2:]))<<16)
}

func s32(data []byte) float64 {
	// Little-endian big-endian :#
	return float64(int32(binary.BigEndian.Uint16(data)) + int32(binary.BigEndian.Uint16(data[2:]))<<16)
}