From f245d085cf1ce04009dcbc9f8dc04dcfabf1c745 Mon Sep 17 00:00:00 2001 From: WlodekM Date: Wed, 2 Apr 2025 17:18:05 +0300 Subject: more instructions --- instructions/ADC.ts | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'instructions/ADC.ts') diff --git a/instructions/ADC.ts b/instructions/ADC.ts index c8163d0..5e00f15 100644 --- a/instructions/ADC.ts +++ b/instructions/ADC.ts @@ -1,9 +1,11 @@ import type The65c02 from "../65c02.ts"; export default function (this: The65c02, mode: string) { - const addr = this.getAddr(mode); + const addr = this.getAddr(mode) this.io.address.set(addr); - this.read(); - this.flagZN(this.io.data.num()) - this.regA.set(this.io.data.num()) + this.read() + const mem = this.io.data.num(); + const result = this.regA.num() + mem + this.flagZCN(result); + this.regA.set(result & 0xFF); } \ No newline at end of file -- cgit 1.4.1-2-gfad0