From ca52fa9b14a50b04e026b89c2df45538f48fc003 Mon Sep 17 00:00:00 2001
From: Hexa Dust <hxd@hexadust.net>
Date: Fri, 18 Jul 2025 20:31:23 +0100
Subject: [PATCH] error display with -E-

---
 src/display.rs | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/display.rs b/src/display.rs
index 895accb..d763077 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -83,17 +83,19 @@ impl SegmentPins {
 
 #[derive(Clone, Copy, PartialEq, Eq)]
 pub enum SegmentState {
+    Off,
     Num(u8, bool),
     Minus,
     Prompt(bool),
     Dot,
-    Off,
+    E,
 }
 
 impl SegmentState {
     pub fn apply(&self, seg: &mut SegmentPins) {
         seg.set_off();
         match self {
+            SegmentState::Off => (),
             SegmentState::Num(no, dp) => {
                 match no {
                     0 => {
@@ -179,7 +181,13 @@ impl SegmentState {
                     seg.set_dp()
                 }
             }
-            SegmentState::Off => (),
+            SegmentState::E => {
+                seg.set_a();
+                seg.set_d();
+                seg.set_e();
+                seg.set_f();
+                seg.set_g();
+            }
         }
     }
 }
@@ -251,15 +259,15 @@ impl DispalyState {
 
     pub fn error(&mut self) {
         self.set([
+            SegmentState::Off,
+            SegmentState::Off,
+            SegmentState::Off,
             SegmentState::Minus,
+            SegmentState::E,
             SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
-            SegmentState::Minus,
+            SegmentState::Off,
+            SegmentState::Off,
+            SegmentState::Off,
         ])
     }
 }