func main() {
flag.Parse()
args := flag.Args()
if len(args) != 1 {
fmt.Fprintf(os.Stderr, "need exactly one input file\n")
os.Exit(-1)
}
fname := args[0]
var bs []byte
if strings.HasSuffix(fname, ".s") {
f, e := os.Open(fname)
if e != nil {
fmt.Fprintf(os.Stderr, "open: %s", e)
os.Exit(-1)
}
var es []*lex8.Error
if strings.HasSuffix(fname, "_bare.s") {
bs, es = asm8.BuildBareFunc(fname, f)
} else {
bs, es = asm8.BuildSingleFile(fname, f)
}
if len(es) > 0 {
for _, e := range es {
fmt.Println(e)
}
os.Exit(-1)
return
}
} else {
var e error
bs, e = ioutil.ReadFile(fname)
if e != nil {
fmt.Println(e)
os.Exit(-1)
return
}
}
if *doDasm {
lines := dasm8.Dasm(bs, arch8.InitPC)
for _, line := range lines {
fmt.Println(line)
}
} else {
n, e := run(bs)
fmt.Printf("(%d cycles)\n", n)
if e != nil {
fmt.Println(e)
}
}
}
func runImage(bs []byte, dasm bool, n int) {
if dasm {
lines := dasm8.Dasm(bs, arch8.InitPC)
for _, line := range lines {
fmt.Println(line)
}
}
if len(bs) == 0 {
fmt.Println("(the image is empty)")
return
}
ncycle, e := arch8.RunImage(bs, n)
fmt.Printf("(%d cycles)\n", ncycle)
if e != nil {
fmt.Println(e)
}
}