From 2f63e169edb3ba1e95a33719c021e1bab9d9ac8c Mon Sep 17 00:00:00 2001 From: WlodekM Date: Wed, 2 Apr 2025 20:59:59 +0300 Subject: stuff --- instructions/ORA.ts | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 instructions/ORA.ts (limited to 'instructions/ORA.ts') diff --git a/instructions/ORA.ts b/instructions/ORA.ts new file mode 100644 index 0000000..a9bd407 --- /dev/null +++ b/instructions/ORA.ts @@ -0,0 +1,11 @@ +import type The65c02 from "../65c02.ts"; + +export default function (this: The65c02, mode: string) { + const addr = this.getAddr(mode) + this.io.address.set(addr); + this.read() + const mem = this.io.data.num(); + const result = this.regA.num() | mem + this.flagZN(result); + this.regA.set(result & 0xFF); +} \ No newline at end of file -- cgit 1.4.1-2-gfad0