Ryujinx/ARMeilleure/Instructions/InstEmitAlu.cs
gdkchan a731ab3a2a Add a new JIT compiler for CPU code (#693)
* Start of the ARMeilleure project

* Refactoring around the old IRAdapter, now renamed to PreAllocator

* Optimize the LowestBitSet method

* Add CLZ support and fix CLS implementation

* Add missing Equals and GetHashCode overrides on some structs, misc small tweaks

* Implement the ByteSwap IR instruction, and some refactoring on the assembler

* Implement the DivideUI IR instruction and fix 64-bits IDIV

* Correct constant operand type on CSINC

* Move division instructions implementation to InstEmitDiv

* Fix destination type for the ConditionalSelect IR instruction

* Implement UMULH and SMULH, with new IR instructions

* Fix some issues with shift instructions

* Fix constant types for BFM instructions

* Fix up new tests using the new V128 struct

* Update tests

* Move DIV tests to a separate file

* Add support for calls, and some instructions that depends on them

* Start adding support for SIMD & FP types, along with some of the related ARM instructions

* Fix some typos and the divide instruction with FP operands

* Fix wrong method call on Clz_V

* Implement ARM FP & SIMD move instructions, Saddlv_V, and misc. fixes

* Implement SIMD logical instructions and more misc. fixes

* Fix PSRAD x86 instruction encoding, TRN, UABD and UABDL implementations

* Implement float conversion instruction, merge in LDj3SNuD fixes, and some other misc. fixes

* Implement SIMD shift instruction and fix Dup_V

* Add SCVTF and UCVTF (vector, fixed-point) variants to the opcode table

* Fix check with tolerance on tester

* Implement FP & SIMD comparison instructions, and some fixes

* Update FCVT (Scalar) encoding on the table to support the Half-float variants

* Support passing V128 structs, some cleanup on the register allocator, merge LDj3SNuD fixes

* Use old memory access methods, made a start on SIMD memory insts support, some fixes

* Fix float constant passed to functions, save and restore non-volatile XMM registers, other fixes

* Fix arguments count with struct return values, other fixes

* More instructions

* Misc. fixes and integrate LDj3SNuD fixes

* Update tests

* Add a faster linear scan allocator, unwinding support on windows, and other changes

* Update Ryujinx.HLE

* Update Ryujinx.Graphics

* Fix V128 return pointer passing, RCX is clobbered

* Update Ryujinx.Tests

* Update ITimeZoneService

* Stop using GetFunctionPointer as that can't be called from native code, misc. fixes and tweaks

* Use generic GetFunctionPointerForDelegate method and other tweaks

* Some refactoring on the code generator, assert on invalid operations and use a separate enum for intrinsics

* Remove some unused code on the assembler

* Fix REX.W prefix regression on float conversion instructions, add some sort of profiler

* Add hardware capability detection

* Fix regression on Sha1h and revert Fcm** changes

* Add SSE2-only paths on vector extract and insert, some refactoring on the pre-allocator

* Fix silly mistake introduced on last commit on CpuId

* Generate inline stack probes when the stack allocation is too large

* Initial support for the System-V ABI

* Support multiple destination operands

* Fix SSE2 VectorInsert8 path, and other fixes

* Change placement of XMM callee save and restore code to match other compilers

* Rename Dest to Destination and Inst to Instruction

* Fix a regression related to calls and the V128 type

* Add an extra space on comments to match code style

* Some refactoring

* Fix vector insert FP32 SSE2 path

* Port over the ARM32 instructions

* Avoid memory protection races on JIT Cache

* Another fix on VectorInsert FP32 (thanks to LDj3SNuD

* Float operands don't need to use the same register when VEX is supported

* Add a new register allocator, higher quality code for hot code (tier up), and other tweaks

* Some nits, small improvements on the pre allocator

* CpuThreadState is gone

* Allow changing CPU emulators with a config entry

* Add runtime identifiers on the ARMeilleure project

* Allow switching between CPUs through a config entry (pt. 2)

* Change win10-x64 to win-x64 on projects

* Update the Ryujinx project to use ARMeilleure

* Ensure that the selected register is valid on the hybrid allocator

* Allow exiting on returns to 0 (should fix test regression)

* Remove register assignments for most used variables on the hybrid allocator

* Do not use fixed registers as spill temp

* Add missing namespace and remove unneeded using

* Address PR feedback

* Fix types, etc

* Enable AssumeStrictAbiCompliance by default

* Ensure that Spill and Fill don't load or store any more than necessary
2019-08-08 21:56:22 +03:00

369 lines
11 KiB
C#

using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.State;
using ARMeilleure.Translation;
using static ARMeilleure.Instructions.InstEmitAluHelper;
using static ARMeilleure.Instructions.InstEmitHelper;
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
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 = context.Call(new _U32_U32(SoftFallback.ReverseBits32), n);
}
else
{
d = context.Call(new _U64_U64(SoftFallback.ReverseBits64), n);
}
SetAluDOrZR(context, d);
}
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 = context.Call(new _U32_U32(SoftFallback.ReverseBytes16_32), n);
}
else
{
d = context.Call(new _U64_U64(SoftFallback.ReverseBytes16_64), n);
}
SetAluDOrZR(context, d);
}
public static void Rev32(ArmEmitterContext context)
{
OpCodeAlu op = (OpCodeAlu)context.CurrOp;
Operand n = GetIntOrZR(context, op.Rn);
if (op.RegisterSize == RegisterSize.Int32)
{
SetAluDOrZR(context, context.ByteSwap(n));
}
else
{
Operand d = context.Call(new _U64_U64(SoftFallback.ReverseBytes32_64), n);
SetAluDOrZR(context, d);
}
}
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);
}
}
}