// Command asm assembles ship-program source into the binary that the
// program endpoint accepts: asm prog.s > prog.bin
package main

import (
	"fmt"
	"os"

	"wh/vm"
)

func main() {
	if len(os.Args) != 2 {
		fmt.Fprintln(os.Stderr, "usage: asm <source.s> > program.bin")
		os.Exit(2)
	}
	src, err := os.ReadFile(os.Args[1])
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	prog, err := vm.Assemble(string(src))
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	os.Stdout.Write(prog)
}