Add thread structure

src/simulator/machine.rs

@@ -4,6 +4,9 @@ use super::{decode::{Instruction, decode}};
 use super::global::*;
 use std::fs::File;
 
+pub const NUM_INT_REGS: usize = 32;
+pub const NUM_FP_REGS: usize = 32;
+
 /// doit disparaitre
 const MEM_SIZE : usize = 4096;