Ryujinx/src/ARMeilleure/Instructions/InstEmitAlu.cs
TSRBerry ff53dcf560
[ARMeilleure] Address dotnet-format issues (#5357)
* dotnet format style --severity info

Some changes were manually reverted.

* dotnet format analyzers --serverity info

Some changes have been minimally adapted.

* Restore a few unused methods and variables

* Silence dotnet format IDE0060 warnings

* Silence dotnet format IDE0052 warnings

* Address or silence dotnet format IDE1006 warnings

* Address or silence dotnet format CA2208 warnings

* Address dotnet format CA1822 warnings

* Address or silence dotnet format CA1069 warnings

* Silence CA1806 and CA1834 issues

* Address dotnet format CA1401 warnings

* Fix new dotnet-format issues after rebase

* Address review comments

* Address dotnet format CA2208 warnings properly

* Fix formatting for switch expressions

* Address most dotnet format whitespace warnings

* Apply dotnet format whitespace formatting

A few of them have been manually reverted and the corresponding warning was silenced

* Add previously silenced warnings back

I have no clue how these disappeared

* Revert formatting changes for OpCodeTable.cs

* Enable formatting for a few cases again

* Format if-blocks correctly

* Enable formatting for a few more cases again

* Fix inline comment alignment

* Run dotnet format after rebase and remove unused usings

- analyzers
- style
- whitespace

* Disable 'prefer switch expression' rule

* Add comments to disabled warnings

* Remove a few unused parameters

* Adjust namespaces

* Simplify properties and array initialization, Use const when possible, Remove trailing commas

* Start working on disabled warnings

* Fix and silence a few dotnet-format warnings again

* Address IDE0251 warnings

* Address a few disabled IDE0060 warnings

* Silence IDE0060 in .editorconfig

* Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas"

This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e.

* dotnet format whitespace after rebase

* First dotnet format pass

* Remove unnecessary formatting exclusion

* Add unsafe dotnet format changes

* Change visibility of JitSupportDarwin to internal
2023-06-26 07:25:06 +02:00

400 lines
12 KiB
C#

using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.State;
using ARMeilleure.Translation;
using System.Diagnostics;
using static ARMeilleure.Instructions.InstEmitAluHelper;
using static ARMeilleure.Instructions.InstEmitHelper;
using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
namespace ARMeilleure.Instructions
{
static partial class InstEmit
{
public static void Adc(ArmEmitterContext context) => EmitAdc(context, setFlags: false);
public static void Adcs(ArmEmitterContext context) => EmitAdc(context, setFlags: true);
private static void EmitAdc(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.Add(n, m);
Operand carry = GetFlag(PState.CFlag);
if (context.CurrOp.RegisterSize == RegisterSize.Int64)
{
carry = context.ZeroExtend32(OperandType.I64, carry);
}
d = context.Add(d, carry);
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitAdcsCCheck(context, n, d);
EmitAddsVCheck(context, n, m, d);
}
SetAluDOrZR(context, d);
}
public static void Add(ArmEmitterContext context)
{
SetAluD(context, context.Add(GetAluN(context), GetAluM(context)));
}
public static void Adds(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
context.MarkComparison(n, m);
Operand d = context.Add(n, m);
EmitNZFlagsCheck(context, d);
EmitAddsCCheck(context, n, d);
EmitAddsVCheck(context, n, m, d);
SetAluDOrZR(context, d);
}
public static void And(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseAnd(GetAluN(context), GetAluM(context)));
}
public static void Ands(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseAnd(n, m);
EmitNZFlagsCheck(context, d);
EmitCVFlagsClear(context);
SetAluDOrZR(context, d);
}
public static void Asrv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftRightSI(GetAluN(context), GetAluMShift(context)));
}
public static void Bic(ArmEmitterContext context) => EmitBic(context, setFlags: false);
public static void Bics(ArmEmitterContext context) => EmitBic(context, setFlags: true);
private static void EmitBic(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseAnd(n, context.BitwiseNot(m));
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitCVFlagsClear(context);
}
SetAluD(context, d, setFlags);
}
public static void Cls(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand nHigh = context.ShiftRightUI(n, Const(1));
bool is32Bits = op.RegisterSize == RegisterSize.Int32;
Operand mask = is32Bits ? Const(int.MaxValue) : Const(long.MaxValue);
Operand nLow = context.BitwiseAnd(n, mask);
Operand res = context.CountLeadingZeros(context.BitwiseExclusiveOr(nHigh, nLow));
res = context.Subtract(res, Const(res.Type, 1));
SetAluDOrZR(context, res);
}
public static void Clz(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d = context.CountLeadingZeros(n);
SetAluDOrZR(context, d);
}
public static void Eon(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseExclusiveOr(n, context.BitwiseNot(m));
SetAluD(context, d);
}
public static void Eor(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseExclusiveOr(GetAluN(context), GetAluM(context)));
}
public static void Extr(ArmEmitterContext context)
{
OpCodeAluRs op = (OpCodeAluRs)context.CurrOp;
Operand res = GetIntOrZR(context, op.Rm);
if (op.Shift != 0)
{
if (op.Rn == op.Rm)
{
res = context.RotateRight(res, Const(op.Shift));
}
else
{
res = context.ShiftRightUI(res, Const(op.Shift));
Operand n = GetIntOrZR(context, op.Rn);
int invShift = op.GetBitsCount() - op.Shift;
res = context.BitwiseOr(res, context.ShiftLeft(n, Const(invShift)));
}
}
SetAluDOrZR(context, res);
}
public static void Lslv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftLeft(GetAluN(context), GetAluMShift(context)));
}
public static void Lsrv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.ShiftRightUI(GetAluN(context), GetAluMShift(context)));
}
public static void Sbc(ArmEmitterContext context) => EmitSbc(context, setFlags: false);
public static void Sbcs(ArmEmitterContext context) => EmitSbc(context, setFlags: true);
private static void EmitSbc(ArmEmitterContext context, bool setFlags)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.Subtract(n, m);
Operand borrow = context.BitwiseExclusiveOr(GetFlag(PState.CFlag), Const(1));
if (context.CurrOp.RegisterSize == RegisterSize.Int64)
{
borrow = context.ZeroExtend32(OperandType.I64, borrow);
}
d = context.Subtract(d, borrow);
if (setFlags)
{
EmitNZFlagsCheck(context, d);
EmitSbcsCCheck(context, n, m);
EmitSubsVCheck(context, n, m, d);
}
SetAluDOrZR(context, d);
}
public static void Sub(ArmEmitterContext context)
{
SetAluD(context, context.Subtract(GetAluN(context), GetAluM(context)));
}
public static void Subs(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
context.MarkComparison(n, m);
Operand d = context.Subtract(n, m);
EmitNZFlagsCheck(context, d);
EmitSubsCCheck(context, n, m);
EmitSubsVCheck(context, n, m, d);
SetAluDOrZR(context, d);
}
public static void Orn(ArmEmitterContext context)
{
Operand n = GetAluN(context);
Operand m = GetAluM(context);
Operand d = context.BitwiseOr(n, context.BitwiseNot(m));
SetAluD(context, d);
}
public static void Orr(ArmEmitterContext context)
{
SetAluD(context, context.BitwiseOr(GetAluN(context), GetAluM(context)));
}
public static void Rbit(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d;
if (op.RegisterSize == RegisterSize.Int32)
{
d = EmitReverseBits32Op(context, n);
}
else
{
d = EmitReverseBits64Op(context, n);
}
SetAluDOrZR(context, d);
}
private static Operand EmitReverseBits64Op(ArmEmitterContext context, Operand op)
{
Debug.Assert(op.Type == OperandType.I64);
Operand val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(op, Const(0xaaaaaaaaaaaaaaaaul)), Const(1)),
context.ShiftLeft(context.BitwiseAnd(op, Const(0x5555555555555555ul)), Const(1)));
val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xccccccccccccccccul)), Const(2)),
context.ShiftLeft(context.BitwiseAnd(val, Const(0x3333333333333333ul)), Const(2)));
val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xf0f0f0f0f0f0f0f0ul)), Const(4)),
context.ShiftLeft(context.BitwiseAnd(val, Const(0x0f0f0f0f0f0f0f0ful)), Const(4)));
val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xff00ff00ff00ff00ul)), Const(8)),
context.ShiftLeft(context.BitwiseAnd(val, Const(0x00ff00ff00ff00fful)), Const(8)));
val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xffff0000ffff0000ul)), Const(16)),
context.ShiftLeft(context.BitwiseAnd(val, Const(0x0000ffff0000fffful)), Const(16)));
return context.BitwiseOr(context.ShiftRightUI(val, Const(32)), context.ShiftLeft(val, Const(32)));
}
public static void Rev16(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d;
if (op.RegisterSize == RegisterSize.Int32)
{
d = EmitReverseBytes16_32Op(context, n);
}
else
{
d = EmitReverseBytes16_64Op(context, n);
}
SetAluDOrZR(context, d);
}
public static void Rev32(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
Operand d;
if (op.RegisterSize == RegisterSize.Int32)
{
d = context.ByteSwap(n);
}
else
{
d = EmitReverseBytes32_64Op(context, n);
}
SetAluDOrZR(context, d);
}
private static Operand EmitReverseBytes32_64Op(ArmEmitterContext context, Operand op)
{
Debug.Assert(op.Type == OperandType.I64);
Operand val = EmitReverseBytes16_64Op(context, op);
return context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xffff0000ffff0000ul)), Const(16)),
context.ShiftLeft(context.BitwiseAnd(val, Const(0x0000ffff0000fffful)), Const(16)));
}
public static void Rev64(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
SetAluDOrZR(context, context.ByteSwap(GetIntOrZR(context, op.Rn)));
}
public static void Rorv(ArmEmitterContext context)
{
SetAluDOrZR(context, context.RotateRight(GetAluN(context), GetAluMShift(context)));
}
private static Operand GetAluMShift(ArmEmitterContext context)
{
IOpCodeAluRs op = (IOpCodeAluRs)context.CurrOp;
Operand m = GetIntOrZR(context, op.Rm);
if (op.RegisterSize == RegisterSize.Int64)
{
m = context.ConvertI64ToI32(m);
}
return context.BitwiseAnd(m, Const(context.CurrOp.GetBitsCount() - 1));
}
private static void EmitCVFlagsClear(ArmEmitterContext context)
{
SetFlag(context, PState.CFlag, Const(0));
SetFlag(context, PState.VFlag, Const(0));
}
public static void SetAluD(ArmEmitterContext context, Operand d)
{
SetAluD(context, d, x31IsZR: false);
}
public static void SetAluDOrZR(ArmEmitterContext context, Operand d)
{
SetAluD(context, d, x31IsZR: true);
}
public static void SetAluD(ArmEmitterContext context, Operand d, bool x31IsZR)
{
IOpCodeAlu op = (IOpCodeAlu)context.CurrOp;
if ((x31IsZR || op is IOpCodeAluRs) && op.Rd == RegisterConsts.ZeroIndex)
{
return;
}
SetIntOrSP(context, op.Rd, d);
}
}
}