mirror of
https://github.com/ryujinx-mirror/ryujinx.git
synced 2024-12-23 07:05:45 +00:00
98e05ee4b7
* Decoders: Add InITBlock argument
* OpCodeTable: Minor cleanup
* OpCodeTable: Remove existing thumb instruction implementations
* OpCodeTable: Prepare for thumb instructions
* OpCodeTables: Improve thumb fast lookup
* Tests: Prepare for thumb tests
* T16: Implement BX
* T16: Implement LSL/LSR/ASR (imm)
* T16: Implement ADDS, SUBS (reg)
* T16: Implement ADDS, SUBS (3-bit immediate)
* T16: Implement MOVS, CMP, ADDS, SUBS (8-bit immediate)
* T16: Implement ANDS, EORS, LSLS, LSRS, ASRS, ADCS, SBCS, RORS, TST, NEGS, CMP, CMN, ORRS, MULS, BICS, MVNS (low registers)
* T16: Implement ADD, CMP, MOV (high reg)
* T16: Implement BLX (reg)
* T16: Implement LDR (literal)
* T16: Implement {LDR,STR}{,H,B,SB,SH} (register)
* T16: Implement {LDR,STR}{,B,H} (immediate)
* T16: Implement LDR/STR (SP)
* T16: Implement ADR
* T16: Implement Add to SP (immediate)
* T16: Implement ADD/SUB (SP)
* T16: Implement SXTH, SXTB, UXTH, UTXB
* T16: Implement CBZ, CBNZ
* T16: Implement PUSH, POP
* T16: Implement REV, REV16, REVSH
* T16: Implement NOP
* T16: Implement LDM, STM
* T16: Implement SVC
* T16: Implement B (conditional)
* T16: Implement B (unconditional)
* T16: Implement IT
* fixup! T16: Implement ADD/SUB (SP)
* fixup! T16: Implement Add to SP (immediate)
* fixup! T16: Implement IT
* CpuTestThumb: Add randomized tests
* Remove inITBlock argument
* Address nits
* Use index to handle IfThenBlockState
* Reduce line noise
* fixup
* nit
379 lines
12 KiB
C#
379 lines
12 KiB
C#
using ARMeilleure.Decoders;
|
|
using ARMeilleure.IntermediateRepresentation;
|
|
using ARMeilleure.State;
|
|
using ARMeilleure.Translation;
|
|
using System;
|
|
|
|
using static ARMeilleure.Instructions.InstEmitAluHelper;
|
|
using static ARMeilleure.Instructions.InstEmitHelper;
|
|
using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
|
|
|
|
namespace ARMeilleure.Instructions
|
|
{
|
|
static partial class InstEmit32
|
|
{
|
|
[Flags]
|
|
private enum MullFlags
|
|
{
|
|
Subtract = 1,
|
|
Add = 1 << 1,
|
|
Signed = 1 << 2,
|
|
|
|
SignedAdd = Signed | Add,
|
|
SignedSubtract = Signed | Subtract
|
|
}
|
|
|
|
public static void Mla(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetAluN(context);
|
|
Operand m = GetAluM(context);
|
|
Operand a = GetIntA32(context, op.Ra);
|
|
|
|
Operand res = context.Add(a, context.Multiply(n, m));
|
|
|
|
if (ShouldSetFlags(context))
|
|
{
|
|
EmitNZFlagsCheck(context, res);
|
|
}
|
|
|
|
EmitAluStore(context, res);
|
|
}
|
|
|
|
public static void Mls(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetAluN(context);
|
|
Operand m = GetAluM(context);
|
|
Operand a = GetIntA32(context, op.Ra);
|
|
|
|
Operand res = context.Subtract(a, context.Multiply(n, m));
|
|
|
|
EmitAluStore(context, res);
|
|
}
|
|
|
|
public static void Smmla(ArmEmitterContext context)
|
|
{
|
|
EmitSmmul(context, MullFlags.SignedAdd);
|
|
}
|
|
|
|
public static void Smmls(ArmEmitterContext context)
|
|
{
|
|
EmitSmmul(context, MullFlags.SignedSubtract);
|
|
}
|
|
|
|
public static void Smmul(ArmEmitterContext context)
|
|
{
|
|
EmitSmmul(context, MullFlags.Signed);
|
|
}
|
|
|
|
private static void EmitSmmul(ArmEmitterContext context, MullFlags flags)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = context.SignExtend32(OperandType.I64, GetIntA32(context, op.Rn));
|
|
Operand m = context.SignExtend32(OperandType.I64, GetIntA32(context, op.Rm));
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
if (flags.HasFlag(MullFlags.Add) && op.Ra != 0xf)
|
|
{
|
|
res = context.Add(context.ShiftLeft(context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Ra)), Const(32)), res);
|
|
}
|
|
else if (flags.HasFlag(MullFlags.Subtract))
|
|
{
|
|
res = context.Subtract(context.ShiftLeft(context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Ra)), Const(32)), res);
|
|
}
|
|
|
|
if (op.R)
|
|
{
|
|
res = context.Add(res, Const(0x80000000L));
|
|
}
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightSI(res, Const(32)));
|
|
|
|
EmitGenericAluStoreA32(context, op.Rd, false, hi);
|
|
}
|
|
|
|
public static void Smla__(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
Operand a = GetIntA32(context, op.Ra);
|
|
|
|
if (op.NHigh)
|
|
{
|
|
n = context.SignExtend16(OperandType.I64, context.ShiftRightUI(n, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
n = context.SignExtend16(OperandType.I64, n);
|
|
}
|
|
|
|
if (op.MHigh)
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, context.ShiftRightUI(m, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
Operand toAdd = context.SignExtend32(OperandType.I64, a);
|
|
res = context.Add(res, toAdd);
|
|
Operand q = context.ICompareNotEqual(res, context.SignExtend32(OperandType.I64, res));
|
|
res = context.ConvertI64ToI32(res);
|
|
|
|
UpdateQFlag(context, q);
|
|
|
|
EmitGenericAluStoreA32(context, op.Rd, false, res);
|
|
}
|
|
|
|
public static void Smlal(ArmEmitterContext context)
|
|
{
|
|
EmitMlal(context, true);
|
|
}
|
|
|
|
public static void Smlal__(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluUmull op = (OpCode32AluUmull)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
|
|
if (op.NHigh)
|
|
{
|
|
n = context.SignExtend16(OperandType.I64, context.ShiftRightUI(n, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
n = context.SignExtend16(OperandType.I64, n);
|
|
}
|
|
|
|
if (op.MHigh)
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, context.ShiftRightUI(m, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
Operand toAdd = context.ShiftLeft(context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdHi)), Const(32));
|
|
toAdd = context.BitwiseOr(toAdd, context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdLo)));
|
|
res = context.Add(res, toAdd);
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightUI(res, Const(32)));
|
|
Operand lo = context.ConvertI64ToI32(res);
|
|
|
|
EmitGenericAluStoreA32(context, op.RdHi, false, hi);
|
|
EmitGenericAluStoreA32(context, op.RdLo, false, lo);
|
|
}
|
|
|
|
public static void Smlaw_(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
Operand a = GetIntA32(context, op.Ra);
|
|
|
|
if (op.MHigh)
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, context.ShiftRightUI(m, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(context.SignExtend32(OperandType.I64, n), m);
|
|
|
|
Operand toAdd = context.ShiftLeft(context.SignExtend32(OperandType.I64, a), Const(16));
|
|
res = context.Add(res, toAdd);
|
|
res = context.ShiftRightSI(res, Const(16));
|
|
Operand q = context.ICompareNotEqual(res, context.SignExtend32(OperandType.I64, res));
|
|
res = context.ConvertI64ToI32(res);
|
|
|
|
UpdateQFlag(context, q);
|
|
|
|
EmitGenericAluStoreA32(context, op.Rd, false, res);
|
|
}
|
|
|
|
public static void Smul__(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
|
|
if (op.NHigh)
|
|
{
|
|
n = context.ShiftRightSI(n, Const(16));
|
|
}
|
|
else
|
|
{
|
|
n = context.SignExtend16(OperandType.I32, n);
|
|
}
|
|
|
|
if (op.MHigh)
|
|
{
|
|
m = context.ShiftRightSI(m, Const(16));
|
|
}
|
|
else
|
|
{
|
|
m = context.SignExtend16(OperandType.I32, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
EmitGenericAluStoreA32(context, op.Rd, false, res);
|
|
}
|
|
|
|
public static void Smull(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluUmull op = (OpCode32AluUmull)context.CurrOp;
|
|
|
|
Operand n = context.SignExtend32(OperandType.I64, GetIntA32(context, op.Rn));
|
|
Operand m = context.SignExtend32(OperandType.I64, GetIntA32(context, op.Rm));
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightUI(res, Const(32)));
|
|
Operand lo = context.ConvertI64ToI32(res);
|
|
|
|
if (ShouldSetFlags(context))
|
|
{
|
|
EmitNZFlagsCheck(context, res);
|
|
}
|
|
|
|
EmitGenericAluStoreA32(context, op.RdHi, ShouldSetFlags(context), hi);
|
|
EmitGenericAluStoreA32(context, op.RdLo, ShouldSetFlags(context), lo);
|
|
}
|
|
|
|
public static void Smulw_(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluMla op = (OpCode32AluMla)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
|
|
if (op.MHigh)
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, context.ShiftRightUI(m, Const(16)));
|
|
}
|
|
else
|
|
{
|
|
m = context.SignExtend16(OperandType.I64, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(context.SignExtend32(OperandType.I64, n), m);
|
|
|
|
res = context.ShiftRightUI(res, Const(16));
|
|
res = context.ConvertI64ToI32(res);
|
|
|
|
EmitGenericAluStoreA32(context, op.Rd, false, res);
|
|
}
|
|
|
|
public static void Umaal(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluUmull op = (OpCode32AluUmull)context.CurrOp;
|
|
|
|
Operand n = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Rn));
|
|
Operand m = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Rm));
|
|
Operand dHi = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdHi));
|
|
Operand dLo = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdLo));
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
res = context.Add(res, dHi);
|
|
res = context.Add(res, dLo);
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightUI(res, Const(32)));
|
|
Operand lo = context.ConvertI64ToI32(res);
|
|
|
|
EmitGenericAluStoreA32(context, op.RdHi, false, hi);
|
|
EmitGenericAluStoreA32(context, op.RdLo, false, lo);
|
|
}
|
|
|
|
public static void Umlal(ArmEmitterContext context)
|
|
{
|
|
EmitMlal(context, false);
|
|
}
|
|
|
|
public static void Umull(ArmEmitterContext context)
|
|
{
|
|
OpCode32AluUmull op = (OpCode32AluUmull)context.CurrOp;
|
|
|
|
Operand n = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Rn));
|
|
Operand m = context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.Rm));
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightUI(res, Const(32)));
|
|
Operand lo = context.ConvertI64ToI32(res);
|
|
|
|
if (ShouldSetFlags(context))
|
|
{
|
|
EmitNZFlagsCheck(context, res);
|
|
}
|
|
|
|
EmitGenericAluStoreA32(context, op.RdHi, ShouldSetFlags(context), hi);
|
|
EmitGenericAluStoreA32(context, op.RdLo, ShouldSetFlags(context), lo);
|
|
}
|
|
|
|
private static void EmitMlal(ArmEmitterContext context, bool signed)
|
|
{
|
|
OpCode32AluUmull op = (OpCode32AluUmull)context.CurrOp;
|
|
|
|
Operand n = GetIntA32(context, op.Rn);
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
|
|
if (signed)
|
|
{
|
|
n = context.SignExtend32(OperandType.I64, n);
|
|
m = context.SignExtend32(OperandType.I64, m);
|
|
}
|
|
else
|
|
{
|
|
n = context.ZeroExtend32(OperandType.I64, n);
|
|
m = context.ZeroExtend32(OperandType.I64, m);
|
|
}
|
|
|
|
Operand res = context.Multiply(n, m);
|
|
|
|
Operand toAdd = context.ShiftLeft(context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdHi)), Const(32));
|
|
toAdd = context.BitwiseOr(toAdd, context.ZeroExtend32(OperandType.I64, GetIntA32(context, op.RdLo)));
|
|
res = context.Add(res, toAdd);
|
|
|
|
Operand hi = context.ConvertI64ToI32(context.ShiftRightUI(res, Const(32)));
|
|
Operand lo = context.ConvertI64ToI32(res);
|
|
|
|
if (ShouldSetFlags(context))
|
|
{
|
|
EmitNZFlagsCheck(context, res);
|
|
}
|
|
|
|
EmitGenericAluStoreA32(context, op.RdHi, ShouldSetFlags(context), hi);
|
|
EmitGenericAluStoreA32(context, op.RdLo, ShouldSetFlags(context), lo);
|
|
}
|
|
|
|
private static void UpdateQFlag(ArmEmitterContext context, Operand q)
|
|
{
|
|
Operand lblSkipSetQ = Label();
|
|
|
|
context.BranchIfFalse(lblSkipSetQ, q);
|
|
|
|
SetFlag(context, PState.QFlag, Const(1));
|
|
|
|
context.MarkLabel(lblSkipSetQ);
|
|
}
|
|
}
|
|
}
|