mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-11-14 19:16:42 +00:00
2421186d97
* Generalize tail continues * Fix DecodeBasicBlock `Next` and `Branch` would be null, which is not the state expected by the branch instructions. They end up branching or falling into a block which is never populated by the `Translator`. This causes an assert to be fired when building the CFG. * Clean up Decode overloads * Do not synchronize when branching into exit block If we're branching into an exit block, that exit block will tail continue into another translation which already has a synchronization. * Remove A32 predicate tail continue If `block` is not an exit block then the `block.Next` must exist (as per the last instruction of `block`). * Throw if decoded 0 blocks Address gdkchan's feedback * Rebuild block list instead of setting to null Address gdkchan's feedback
84 lines
No EOL
2.4 KiB
C#
84 lines
No EOL
2.4 KiB
C#
using ARMeilleure.Decoders;
|
|
using ARMeilleure.IntermediateRepresentation;
|
|
using ARMeilleure.State;
|
|
using ARMeilleure.Translation;
|
|
|
|
using static ARMeilleure.Instructions.InstEmitFlowHelper;
|
|
using static ARMeilleure.Instructions.InstEmitHelper;
|
|
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
|
|
|
|
namespace ARMeilleure.Instructions
|
|
{
|
|
static partial class InstEmit32
|
|
{
|
|
public static void B(ArmEmitterContext context)
|
|
{
|
|
IOpCode32BImm op = (IOpCode32BImm)context.CurrOp;
|
|
|
|
context.Branch(context.GetLabel((ulong)op.Immediate));
|
|
}
|
|
|
|
public static void Bl(ArmEmitterContext context)
|
|
{
|
|
Blx(context, x: false);
|
|
}
|
|
|
|
public static void Blx(ArmEmitterContext context)
|
|
{
|
|
Blx(context, x: true);
|
|
}
|
|
|
|
private static void Blx(ArmEmitterContext context, bool x)
|
|
{
|
|
IOpCode32BImm op = (IOpCode32BImm)context.CurrOp;
|
|
|
|
uint pc = op.GetPc();
|
|
|
|
bool isThumb = IsThumb(context.CurrOp);
|
|
|
|
uint currentPc = isThumb
|
|
? pc | 1
|
|
: pc - 4;
|
|
|
|
SetIntA32(context, GetBankedRegisterAlias(context.Mode, RegisterAlias.Aarch32Lr), Const(currentPc));
|
|
|
|
// If x is true, then this is a branch with link and exchange.
|
|
// In this case we need to swap the mode between Arm <-> Thumb.
|
|
if (x)
|
|
{
|
|
SetFlag(context, PState.TFlag, Const(isThumb ? 0 : 1));
|
|
}
|
|
|
|
EmitCall(context, (ulong)op.Immediate);
|
|
}
|
|
|
|
public static void Blxr(ArmEmitterContext context)
|
|
{
|
|
IOpCode32BReg op = (IOpCode32BReg)context.CurrOp;
|
|
|
|
uint pc = op.GetPc();
|
|
|
|
Operand addr = context.Copy(GetIntA32(context, op.Rm));
|
|
Operand bitOne = context.BitwiseAnd(addr, Const(1));
|
|
|
|
bool isThumb = IsThumb(context.CurrOp);
|
|
|
|
uint currentPc = isThumb
|
|
? pc | 1
|
|
: pc - 4;
|
|
|
|
SetIntA32(context, GetBankedRegisterAlias(context.Mode, RegisterAlias.Aarch32Lr), Const(currentPc));
|
|
|
|
SetFlag(context, PState.TFlag, bitOne);
|
|
|
|
EmitVirtualCall(context, addr);
|
|
}
|
|
|
|
public static void Bx(ArmEmitterContext context)
|
|
{
|
|
IOpCode32BReg op = (IOpCode32BReg)context.CurrOp;
|
|
|
|
EmitBxWritePc(context, GetIntA32(context, op.Rm), op.Rm);
|
|
}
|
|
}
|
|
} |