package main

import (
	"io/ioutil"
)

func main() {
	merge("342-0568a.rom","342-0569a.rom","lw_0.bin")
	merge("342-0570a.rom","342-0571a.rom","lw_1.bin")
	merge("342-0572a.rom","342-0573a.rom","lw_2.bin")
	merge("342-0574a.rom","342-0575a.rom","lw_3.bin")
	
	merge("342-0545.l0","342-0546.h0","lw_iint_0.bin")
	merge("342-0547.l1","342-0548.h1","lw_iint_1.bin")
	merge("342-0549.l2","342-0550.h2","lw_iint_2.bin")
	merge("342-0549.l2","342-0552.h3","lw_iint_3.bin")
}

func merge(f1 string, f2 string, f3 string) {
	low, err := ioutil.ReadFile(f1)
	if err != nil {
		panic(err)
	}
	high, err := ioutil.ReadFile(f2)
	if err != nil {
		panic(err)
	}	
	out := make([]byte,len(low)*2)
	for i := 0; i < len(low); i++ {
		out[i*2] = high[i]
		out[i*2+1] = low[i]
	}
	ioutil.WriteFile(f3, out, 0644)
}