more chips

more docs

egui/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "egui"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+eframe = "0.27"
+core = { path = "../core" }

egui/src/bin/rom_only_gui.rs

@@ -0,0 +1,77 @@
+use eframe::egui;
+use core::computers::rom_only::RomOnlyComputer;
+use core::periph::at28c256::At28C256;
+
+struct RomGui {
+    computer: RomOnlyComputer,
+    address_input: String,
+    data_input: String,
+    last_result: Option<u8>,
+}
+
+impl Default for RomGui {
+    fn default() -> Self {
+        Self {
+            computer: RomOnlyComputer {
+                rom: At28C256::new(0x0000, 0x3fff, [0xff; 0x4000].to_vec()),
+                data_bus: 0x00,
+                address_bus: 0x0000,
+                read_mode: true,
+            },
+            address_input: "0000".to_string(),
+            data_input: "00".to_string(),
+            last_result: None,
+        }
+    }
+}
+
+impl eframe::App for RomGui {
+    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
+        egui::CentralPanel::default().show(ctx, |ui| {
+            ui.heading("RomOnlyComputer");
+
+            ui.horizontal(|ui| {
+                ui.label("Address (hex):");
+                ui.text_edit_singleline(&mut self.address_input);
+            });
+
+            ui.horizontal(|ui| {
+                ui.label("Data (hex):");
+                ui.text_edit_singleline(&mut self.data_input);
+            });
+
+            ui.checkbox(&mut self.computer.read_mode, "Read Mode");
+
+            if ui.button("Tick").clicked() {
+                if let (Ok(addr), Ok(data)) = (
+                    u16::from_str_radix(&self.address_input.trim(), 16),
+                    u8::from_str_radix(&self.data_input.trim(), 16),
+                ) {
+                    self.computer.address_bus = addr;
+                    self.computer.data_bus = data;
+
+                    let result = self.computer.rom.signal_tick(addr, data, true, true, true);
+                    self.last_result = Some(result);
+
+                    println!(
+                        "Tick: A=${:04X} D=${:02X} R={} -> ${:02X}",
+                        addr, data, self.computer.read_mode, result
+                    );
+                }
+            }
+
+            if let Some(result) = self.last_result {
+                ui.label(format!("Last result: ${:02X}", result));
+            }
+        });
+    }
+}
+
+fn main() -> eframe::Result<()> {
+    let options = eframe::NativeOptions::default();
+    eframe::run_native(
+        "RomOnlyComputer GUI",
+        options,
+        Box::new(|_cc| Box::new(RomGui::default())),
+    )
+}