attempt chatgpt emulator for display

2025-07-03 11:41:54 -04:00
parent 8509b20109
commit e4405cc225
2 changed files with 42 additions and 10 deletions
@@ -13,7 +13,8 @@ pub enum MatrixEntryMode {
 pub struct DisplayMatrix {
    width: f32,
    height: f32,
-    text_buffer: String,
+    text_buffer: [u8; 80],
+    cgram: [u8; 64],
    data_bus: DataBus,
    rs: bool,
    rw: bool,
@@ -21,7 +22,7 @@ pub struct DisplayMatrix {
    busy: bool,
    entry_mode: MatrixEntryMode,
    cursor: bool,
-    on: bool,
+    display_on: bool,
    blink: bool,
    cursor_shift: bool,
    display_shift: bool,
@@ -69,7 +70,7 @@ impl DisplayMatrix {
            cursor_position: 0x00,
            busy: false,
            entry_mode: MatrixEntryMode::InsertShift,
-            on: false,
+            display_on: false,
            cursor: false,
            blink: false,
            cursor_shift: false,
@@ -122,7 +123,7 @@ impl DisplayMatrix {
                    }
                    0b0000_1000..=0b0000_1111 => {
                        // display control
-                        self.on = self.data_bus.data & 0b100 == 0b100;
+                        self.display_on = self.data_bus.data & 0b100 == 0b100;
                        self.cursor = self.data_bus.data & 0b10 == 0b10;
                        self.blink = self.data_bus.data & 0b1 == 0b1;
                    }