From 425f8c9ad5d3f0bb9325f007481a4a9a301e9d55 Mon Sep 17 00:00:00 2001
From: Samarth Patel <cs1230844@iitd.ac.in>
Date: Thu, 12 Mar 2026 09:31:23 +0530
Subject: [PATCH] Unused dead code

---
 src/console.rs | 79 --------------------------------------------------
 src/main.rs    |  1 -
 src/x86.rs     | 29 ------------------
 x86.h          | 18 ------------
 4 files changed, 127 deletions(-)

diff --git a/src/console.rs b/src/console.rs
index 2130c70..66fbc22 100644
--- a/src/console.rs
+++ b/src/console.rs
@@ -3,78 +3,6 @@ use core::fmt::*;
 
 // Console output.
 // Output is written to the screen and serial port.
-// fn printint(xx: i32, base: u32, sign: bool) {
-//   let digits = "0123456789abcdef";
-//   let mut buf = Vec::with_capacity(16);
-//   let mut x: u32;
-
-//   if sign && xx < 0 {
-//     x = -xx as u32;
-//   } else {
-//     x = xx as u32;
-//   }
-
-//   loop {
-//     buf.push(digits.chars().nth((x % base) as usize).unwrap());
-//     x /= base;
-//     if x == 0 {
-//       break;
-//     }
-//   }
-
-//   if sign && xx < 0 {
-//     buf.push('-');
-//   }
-
-//   // Print in reverse order (since we added digits from least to most significant)
-//   for &c in buf.iter().rev() {
-//     consputc(c);
-//   }
-// }
-
-// pub fn cprintf(fmt: &str, args: &[u32]) {
-//   let mut argp = args.iter();
-//   let mut i = 0;
-//   let mut fmt_chars = fmt.chars();
-
-//   while let Some(c) = fmt_chars.next() {
-//     if c != '%' {
-//       consputc(c);
-//       continue;
-//     }
-
-//     match fmt_chars.next() {
-//       Some('d') => {
-//         if let Some(&val) = argp.next() {
-//           printint(val as i32, 10, true);
-//         }
-//       }
-//       Some('x') | Some('p') => {
-//         if let Some(&val) = argp.next() {
-//           printint(val as i32, 16, false);
-//         }
-//       }
-//       Some('s') => {
-//         if let Some(&val) = argp.next() {
-//           let s = unsafe { std::ffi::CStr::from_ptr(val as *const i8) };
-//           let s = s.to_str().unwrap_or("(null)");
-//           for c in s.chars() {
-//             consputc(c);
-//           }
-//         }
-//       }
-//       Some('%') => {
-//         consputc('%');
-//       }
-//       Some(_) => {
-//         // Print unknown % sequence
-//         consputc('%');
-//         consputc(c);
-//       }
-//       None => break,
-//     }
-//   }
-// }
 
 pub struct Console {}
 impl Write for Console {
@@ -95,13 +23,6 @@ macro_rules! println {
     });
 }
 
-// #[macro_export]
-// macro_rules! println {
-//     ($($arg:tt)*) => ({
-//         let _ = cprintf($($arg)*);
-//     });
-// }
-
 const BACKSPACE: char = '\x08';
 
 fn consputc(c: char) {
diff --git a/src/main.rs b/src/main.rs
index 67609f6..3b9c4bb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,6 @@ mod x86;
 mod uart;
 mod console;
 
-use core::fmt::*;
 use core::panic::PanicInfo;
 
 use uart::*;
diff --git a/src/x86.rs b/src/x86.rs
index b8e3460..16d8947 100644
--- a/src/x86.rs
+++ b/src/x86.rs
@@ -19,16 +19,6 @@ pub unsafe fn outb(port: u16 , value: u8) {
         options(nomem, nostack)
     );
 }
-pub unsafe fn inw(port: u16) -> u16 {
-    let result: u16;
-    asm!(
-        "in ax, dx",
-        in("dx") port,
-        out("ax") result,
-        options(nomem, nostack)
-    );    
-    result
-}
 pub unsafe fn outw(port: u16 , value: u16) {
     asm!(
         "out dx, ax",
@@ -37,22 +27,3 @@ pub unsafe fn outw(port: u16 , value: u16) {
         options(nomem, nostack)
     );
 }
-pub unsafe fn inl(port: u16) -> u32 {
-    let result: u32;
-    asm!(
-        "in eax, dx",
-        in("dx") port,
-        out("eax") result,
-        options(nomem, nostack)
-    );
-    
-    result
-}
-pub unsafe fn outl(port: u16 , value: u32) {
-    asm!(
-        "out dx, eax",
-        in("dx") port,
-        in("eax") value,
-        options(nomem, nostack)
-    );
-}
\ No newline at end of file
diff --git a/x86.h b/x86.h
index 9b2984f..765ee17 100644
--- a/x86.h
+++ b/x86.h
@@ -30,15 +30,6 @@ outw(ushort port, ushort data)
   asm volatile("out %0,%1" : : "a" (data), "d" (port));
 }
 
-static inline void
-outsl(int port, const void *addr, int cnt)
-{
-  asm volatile("cld; rep outsl" :
-               "=S" (addr), "=c" (cnt) :
-               "d" (port), "0" (addr), "1" (cnt) :
-               "cc");
-}
-
 static inline void
 stosb(void *addr, int data, int cnt)
 {
@@ -47,12 +38,3 @@ stosb(void *addr, int data, int cnt)
                "0" (addr), "1" (cnt), "a" (data) :
                "memory", "cc");
 }
-
-static inline void
-stosl(void *addr, int data, int cnt)
-{
-  asm volatile("cld; rep stosl" :
-               "=D" (addr), "=c" (cnt) :
-               "0" (addr), "1" (cnt), "a" (data) :
-               "memory", "cc");
-}
\ No newline at end of file