diff --git a/src/bin/chirp-minifb/ui.rs b/src/bin/chirp-minifb/ui.rs
index f896c93..b623721 100644
--- a/src/bin/chirp-minifb/ui.rs
+++ b/src/bin/chirp-minifb/ui.rs
@@ -109,18 +109,13 @@ impl FrameBuffer {
             // Resizing the buffer does not unmap memory.
             // After the first use of high-res mode, this is pretty cheap
             (self.width, self.height) = match screen.len() {
-                256 => {
-                    self.buffer.resize(64 * 32, 0);
-                    (64, 32)
-                }
-                1024 => {
-                    self.buffer.resize(128 * 64, 0);
-                    (128, 64)
-                }
+                256 => (64, 32),
+                1024 => (128, 64),
                 _ => {
                     unimplemented!("Screen must be 64*32 or 128*64");
                 }
             };
+            self.buffer.resize(self.width * self.height, 0);
             for (idx, byte) in screen.iter().enumerate() {
                 for bit in 0..8 {
                     self.buffer[8 * idx + bit] = if byte & (1 << (7 - bit)) as u8 != 0 {
diff --git a/src/bin/chirp-shot-viewer/main.rs b/src/bin/chirp-shot-viewer/main.rs
index 91b14a6..9b8f023 100644
--- a/src/bin/chirp-shot-viewer/main.rs
+++ b/src/bin/chirp-shot-viewer/main.rs
@@ -2,6 +2,9 @@ use chirp::{error::Result, *};
 use std::{env::args, fs::read};
 
 fn main() -> Result<()> {
-    bus! {Screen [0..0x100] = &read(args().nth(1).unwrap_or("screen_dump.bin".to_string()))?}
-        .print_screen()
+    for screen in args().skip(1).inspect(|screen| println!("{screen}")) {
+        let screen = read(screen)?;
+        bus! {Screen [0..screen.len()] = &screen}.print_screen()?;
+    }
+    Ok(())
 }