another batch of instructions

1 files changed, 9 insertions, 0 deletions

diff --git a/instructions/CPX.ts b/instructions/CPX.ts
new file mode 100644
index 0000000..15ab9b7
--- /dev/null
+++ b/instructions/CPX.ts
@@ -0,0 +1,9 @@
+import type The65c02 from "../65c02.ts";
+
+export default function (this: The65c02, mode: string) {
+    const location = this.getAddr(mode);
+    this.io.address.set(location);
+    this.read();
+    const thing = this.regX.num() - this.io.data.num();
+    this.flagZCN(thing);
+}
\ No newline at end of file