Add execution to VM via file, starting to iron out bugs

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/main.rs

@@ -4,18 +4,21 @@ mod common;
 //mod syn;
 mod vm;
 
-use std::{
-    convert::TryFrom,
-    io::{self, Read},
-    process,
-};
+use std::{convert::TryFrom, env, fs, io, process};
 
 type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
 
 fn get_input_string() -> io::Result<String> {
-    let mut buffer = String::new();
-    io::stdin().read_to_string(&mut buffer)?;
-    Ok(buffer)
+    let args: Vec<String> = env::args().collect();
+    if args.len() <= 1 {
+        println!(
+            "usage: {} file.asm",
+            args.get(0).map(String::as_str).unwrap_or("rasp")
+        );
+        process::exit(1);
+    } else {
+        fs::read_to_string(&args[1])
+    }
 }
 
 fn main() -> Result<()> {
@@ -29,6 +32,10 @@ fn main() -> Result<()> {
         }
     };
     let obj = vm::obj::obj::Object::try_from(&ast)?;
-    println!("{:#?}", obj);
+    //println!("{:#?}", obj);
+    let mut vm = vm::vm::Vm::new();
+    vm.load_object(obj, 1024 * 1024 * 64)?; // 64mb
+    let status = vm.run()?;
+    println!("status: {}", status);
     Ok(())
 }