From 3181d2c80d2463830dbf0c1c72be5aad352f7f3f Mon Sep 17 00:00:00 2001
From: Richard <richard@example.com>
Date: Sat, 23 Aug 2025 12:24:37 +0200
Subject: [PATCH] disas

---
 src/bin/umdis.rs   | 30 ++++++++++++++++++++++++++----
 src/instruction.rs | 31 ++++++++++++++++---------------
 2 files changed, 42 insertions(+), 19 deletions(-)

diff --git a/src/bin/umdis.rs b/src/bin/umdis.rs
index e3b96b8..eb69db3 100644
--- a/src/bin/umdis.rs
+++ b/src/bin/umdis.rs
@@ -1,10 +1,32 @@
 extern crate um;
 use um::instruction::{Instruction, ParsingError};
+use std::io::Read;
 
 fn main() {
-  let i = Instruction::parse(0x81234567);
-  match i {
-    Ok(x) => println!("Ins {:?}!", x.fmt()),
-    Err(ParsingError) => println!("OOPS")
+  let mut stdin = std::io::stdin().lock();
+  let mut cont = true;
+  while cont {
+    let mut buffer = [0u8; 4];
+    cont = match stdin.read(&mut buffer) {
+        Ok(4) => hdl(buffer),
+        Ok(_) => false, 
+        Err(_) => false,
+    };
+  }
+}
+
+fn hdl(buffer: [u8; 4]) -> bool{
+  let num = u32::from_be_bytes(
+        buffer.try_into().unwrap());
+  let i = Instruction::parse(num);
+  match i {
+    Ok(x) => {
+      println!("{}", x.fmt());
+      true
+    },
+    Err(ParsingError) => {
+      println!("parsingerror");
+      false
+    }
   }
 }
diff --git a/src/instruction.rs b/src/instruction.rs
index 09c2324..52a02e8 100644
--- a/src/instruction.rs
+++ b/src/instruction.rs
@@ -39,22 +39,23 @@ const fn u3at(d: u32, pos: u8) -> u3 {
 }
 
 impl Instruction {
-  pub fn fmt(&self) -> &'static str {
+  pub fn fmt(&self) -> String {
     match self {
-      Instruction::ConditionalMove(i) => "CMV",
-      Instruction::ArrayIndex(i) => "IDX",
-      Instruction::ArrayAmend(i) => "AMD",
-      Instruction::Add(i) => "ADD",
-      Instruction::Multiply(i) => "MUL",
-      Instruction::Divide(i) => "DIV",
-      Instruction::NotAnd(i) => "NAD",
-      Instruction::Halt(i) => "HLT",
-      Instruction::Allocate(i) => "ALC",
-      Instruction::Abandon(i) => "ABN",
-      Instruction::Output(i) => "OUT",
-      Instruction::Input(i) => "INP",
-      Instruction::Load(i) => "LOD",
-      Instruction::Ortho(i) => "ORT"
+      Instruction::ConditionalMove(i) => format!("CMV r{}=r{} if r{}", i.
+a, i.b, i.c),
+      Instruction::ArrayIndex(i) => format!("IDX r{}=r{}[r{}]", i.a, i.b, i.c) ,
+      Instruction::ArrayAmend(i) => format!("AMD r{}[r{}]=r{}", i.a, i.b, i.c),
+      Instruction::Add(i) => format!("ADD r{}=r{}+r{}", i.a, i.b, i.c),
+      Instruction::Multiply(i) => format!("MUL r{}=r{}*r{}", i.a, i.b, i.c),
+      Instruction::Divide(i) => format!("DIV r{}=r{}/r{}", i.a, i.b, i.c),
+      Instruction::NotAnd(i) => format!("NAD r{}=r{} nand r{}", i.a, i.b, i.c),
+      Instruction::Halt(i) => format!("HLT"),
+      Instruction::Allocate(i) => format!("ALC r{} r{}", i.b, i.c),
+      Instruction::Abandon(i) => format!("ABN r{}", i.c),
+      Instruction::Output(i) => format!("OUT r{}", i.c),
+      Instruction::Input(i) => format!("INP r{}", i.c),
+      Instruction::Load(i) => format!("LOD r{}@r{}", i.b, i.c),
+      Instruction::Ortho(i) => format!("ORT r{}={}", i.a, i.v)
     }
   }