1 files changed, 15 insertions, 0 deletions
diff --git a/instructions/INY.ts b/instructions/INY.ts
new file mode 100644
index 0000000..566c6d4
--- /dev/null
+++ b/instructions/INY.ts
@@ -0,0 +1,15 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    switch (mode) {
+        case 'implied':
+            this.regY.increment()
+            this.negative = this.regY.bit(7);
+            this.zero = this.regY.num() == 0;
+            this.programCounter.increment();
+            break;
+    
+        default:
+            throw 'wha';
+    }
+}
\ No newline at end of file