From a1cffc79f88a87474769836b00db595b014996a8 Mon Sep 17 00:00:00 2001
From: ergo720 <45463469+ergo720@users.noreply.github.com>
Date: Sat, 7 May 2022 14:58:27 +0200
Subject: [PATCH 1/2] Fixed wrong irql masks

---
 src/core/kernel/exports/EmuKrnl.cpp | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/core/kernel/exports/EmuKrnl.cpp b/src/core/kernel/exports/EmuKrnl.cpp
index 06a8e0e10..f7b0cb444 100644
--- a/src/core/kernel/exports/EmuKrnl.cpp
+++ b/src/core/kernel/exports/EmuKrnl.cpp
@@ -183,13 +183,13 @@ const DWORD IrqlMasks[] = {
 	0x03FFFFF0, // IRQL 4
 	0x01FFFFF0, // IRQL 5
 	0x00FFFFF0, // IRQL 6
-	0x00EFFFF0, // IRQL 7
-	0x007FFFF0, // IRQL 8
-	0x003FFFF0, // IRQL 9
-	0x001FFFF0, // IRQL 10
-	0x000EFFF0, // IRQL 11
-	0x0007FFF0, // IRQL 12
-	0x0003FFF0, // IRQL 13
+	0x007FFFF0, // IRQL 7
+	0x003FFFF0, // IRQL 8
+	0x001FFFF0, // IRQL 9
+	0x000FFFF0, // IRQL 10
+	0x0007FFF0, // IRQL 11
+	0x0003FFF0, // IRQL 12
+	0x0001FFF0, // IRQL 13
 	0x0001FFF0, // IRQL 14
 	0x00017FF0, // IRQL 15
 	0x00013FF0, // IRQL 16

From 2168b033c6a79be9d26ed6de7be62d2f8d3fd90f Mon Sep 17 00:00:00 2001
From: ergo720 <45463469+ergo720@users.noreply.github.com>
Date: Sat, 7 May 2022 22:30:35 +0200
Subject: [PATCH 2/2] Added comment

---
 src/core/kernel/exports/EmuKrnl.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/core/kernel/exports/EmuKrnl.cpp b/src/core/kernel/exports/EmuKrnl.cpp
index f7b0cb444..a53220c83 100644
--- a/src/core/kernel/exports/EmuKrnl.cpp
+++ b/src/core/kernel/exports/EmuKrnl.cpp
@@ -175,6 +175,7 @@ void CallSoftwareInterrupt(const xbox::KIRQL SoftwareIrql)
 	HalInterruptRequestRegister ^= (1 << SoftwareIrql);
 }
 
+// This masks have been verified to be correct against a kernel dump
 const DWORD IrqlMasks[] = {
 	0xFFFFFFFE, // IRQL 0
 	0xFFFFFFFC, // IRQL 1 (APC_LEVEL)
@@ -189,12 +190,12 @@ const DWORD IrqlMasks[] = {
 	0x000FFFF0, // IRQL 10
 	0x0007FFF0, // IRQL 11
 	0x0003FFF0, // IRQL 12
-	0x0001FFF0, // IRQL 13
-	0x0001FFF0, // IRQL 14
+	0x0001FFF0, // IRQL 13 (same as IRQL 14)
+	0x0001FFF0, // IRQL 14 (same as IRQL 13)
 	0x00017FF0, // IRQL 15
 	0x00013FF0, // IRQL 16
-	0x00011FF0, // IRQL 17
-	0x00011FF0, // IRQL 18
+	0x00011FF0, // IRQL 17 (same as IRQL 18)
+	0x00011FF0, // IRQL 18 (same as IRQL 17)
 	0x000117F0, // IRQL 19
 	0x000113F0, // IRQL 20
 	0x000111F0, // IRQL 21