From fd889250b31d4baeeed019321d8a3996d5c78e10 Mon Sep 17 00:00:00 2001
From: Asnivor <coding@asnitech.co.uk>
Date: Fri, 8 Jun 2018 12:27:52 +0100
Subject: [PATCH] ZXHawk: 128k/+2 interrupt, ULA tables & contention tweaked

---
 .../Machine/ZXSpectrum128K/ZX128.Screen.cs                | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128K/ZX128.Screen.cs b/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128K/ZX128.Screen.cs
index 92472c0e3b..461baf266a 100644
--- a/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128K/ZX128.Screen.cs
+++ b/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128K/ZX128.Screen.cs
@@ -16,13 +16,13 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             // timing
             ClockSpeed = 3546900;
             FrameCycleLength = 70908;
-            InterruptStartTime = 32;
+            InterruptStartTime = 34;
             InterruptLength = 36;
             ScanlineTime = 228;
 
-            MemoryContentionOffset = 5;
-            PortContentionOffset = 5;
-            RenderTableOffset = 1;
+            MemoryContentionOffset = 6;
+            PortContentionOffset = 6;
+            RenderTableOffset = -4;
             FloatingBusOffset = 1;
 
             BorderLeftTime = 24;