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

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* 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 c117d9410d693185ff5f8ee8e457ffbfb2027dd5.

* Address PR feedbacks.
This commit is contained in:
LDj3SNuD 2020-08-08 17:18:51 +02:00 • committed by GitHub
parent 8d59ad88b4
commit e36e97c64d
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 342 additions and 178 deletions
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26
ARMeilleure/Instructions/NativeInterface.cs
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@ -87,14 +87,8 @@ namespace ARMeilleure.Instructions
{
var context = GetContext();
uint result = (uint)(context.Fpsr & FPSR.A32Mask) | (uint)(context.Fpcr & FPCR.A32Mask);
result |= context.GetFPstateFlag(FPState.NFlag) ? (1u << 31) : 0;
result |= context.GetFPstateFlag(FPState.ZFlag) ? (1u << 30) : 0;
result |= context.GetFPstateFlag(FPState.CFlag) ? (1u << 29) : 0;
result |= context.GetFPstateFlag(FPState.VFlag) ? (1u << 28) : 0;
return result;
return (uint)(context.Fpsr & FPSR.A32Mask & ~FPSR.Nzcv) |
(uint)(context.Fpcr & FPCR.A32Mask);
}
public static ulong GetTpidrEl0()
@ -142,17 +136,17 @@ namespace ARMeilleure.Instructions
GetContext().Fpsr = (FPSR)value;
}
public static void SetFpscr(uint value)
public static void SetFpsrQc()
{
GetContext().Fpsr |= FPSR.Qc;
}
public static void SetFpscr(uint fpscr)
{
var context = GetContext();
context.SetFPstateFlag(FPState.NFlag, (value & (1u << 31)) != 0);
context.SetFPstateFlag(FPState.ZFlag, (value & (1u << 30)) != 0);
context.SetFPstateFlag(FPState.CFlag, (value & (1u << 29)) != 0);
context.SetFPstateFlag(FPState.VFlag, (value & (1u << 28)) != 0);
context.Fpsr = FPSR.A32Mask & (FPSR)value;
context.Fpcr = FPCR.A32Mask & (FPCR)value;
context.Fpsr = FPSR.A32Mask & (FPSR)fpscr;
context.Fpcr = FPCR.A32Mask & (FPCR)fpscr;
}
public static void SetTpidrEl0(ulong value)