CPU: This PR fixes Fpscr, among other things. (#1433)

* CPU: This PR fixes Fpscr, among other things.

* Add Fpscr.Qc = 1 if sat. for Vqrshrn & Vqrshrun.

* Fix Vcmp & Vcmpe opcode table.

* Revert "Fix Vcmp & Vcmpe opcode table."

This reverts commit c117d9410d.

* Address PR feedbacks.

ARMeilleure/State/FPCR.cs

@@ -5,12 +5,12 @@ namespace ARMeilleure.State
     [Flags]
     public enum FPCR : uint
     {
-        Ufe = 1 << 11,
-        Fz  = 1 << 24,
-        Dn  = 1 << 25,
-        Ahp = 1 << 26,
+        Ufe = 1u << 11,
+        Fz  = 1u << 24,
+        Dn  = 1u << 25,
+        Ahp = 1u << 26,
 
-        A32Mask = 0x07ffff00
+        A32Mask = 0x07FF9F00u
     }
 
     public static class FPCRExtensions

ARMeilleure/State/FPSR.cs

@@ -5,9 +5,11 @@ namespace ARMeilleure.State
     [Flags]
     public enum FPSR : uint
     {
-        Ufc = 1 << 3,
-        Qc  = 1 << 27,
+        Ufc = 1u << 3,
+        Qc  = 1u << 27,
 
-        A32Mask = 0xf800000f
+        Nzcv = (1u << 31) | (1u << 30) | (1u << 29) | (1u << 28),
+
+        A32Mask = 0xF800009Fu
     }
 }

ARMeilleure/State/FPState.cs

@@ -1,10 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace ARMeilleure.State
+namespace ARMeilleure.State
 {
-    [Flags]
     public enum FPState
     {
         VFlag = 28,

ARMeilleure/State/PState.cs

@@ -1,8 +1,5 @@
-using System;
-
 namespace ARMeilleure.State
 {
-    [Flags]
     public enum PState
     {
         TFlag = 5,