D3AA simulator

1 files changed, 22 insertions, 0 deletions

diff --git a/src/peripherals/avrdx-wdt.ts b/src/peripherals/avrdx-wdt.ts
new file mode 100644
index 0000000..08cd308
--- /dev/null
+++ b/src/peripherals/avrdx-wdt.ts
@@ -0,0 +1,22 @@
+// AVR-Dx SLPCTRL - Sleep Controller
+// Handles the SLEEP instruction by fast-forwarding to the next clock event.
+
+import { type CPU } from 'avr8js/cpu/cpu';
+
+// const CTRLA = 0;
+// const STATUS = 1;
+
+export class AVRDxWDT {
+  constructor(cpu: CPU, base: number) {
+    // firmware writes 0 to disable WDT. We need a write hook so it doesn't crash.
+    // cpu.writeHooks[base + CTRLA] = (value) => {
+    //   this.cpu.data[base + CTRLA] = value;
+    //   return true;
+    // };
+
+    // cpu.writeHooks[base + STATUS] = (value) => {
+    //   this.cpu.data[base + STATUS] = value;
+    //   return true;
+    // };
+  }
+}