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70 lines
No EOL
1.8 KiB
C#
70 lines
No EOL
1.8 KiB
C#
using ChocolArm64.Decoder;
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using ChocolArm64.Decoder32;
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using ChocolArm64.Memory;
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using ChocolArm64.State;
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using static ChocolArm64.Instruction32.A32InstInterpretHelper;
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namespace ChocolArm64.Instruction32
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{
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static partial class A32InstInterpret
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{
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public static void B(AThreadState State, AMemory Memory, AOpCode OpCode)
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{
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A32OpCodeBImmAl Op = (A32OpCodeBImmAl)OpCode;
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if (IsConditionTrue(State, Op.Cond))
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{
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BranchWritePc(State, GetPc(State) + (uint)Op.Imm);
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}
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}
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public static void Bl(AThreadState State, AMemory Memory, AOpCode OpCode)
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{
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Blx(State, Memory, OpCode, false);
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}
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public static void Blx(AThreadState State, AMemory Memory, AOpCode OpCode)
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{
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Blx(State, Memory, OpCode, true);
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}
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public static void Blx(AThreadState State, AMemory Memory, AOpCode OpCode, bool X)
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{
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A32OpCodeBImmAl Op = (A32OpCodeBImmAl)OpCode;
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if (IsConditionTrue(State, Op.Cond))
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{
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uint Pc = GetPc(State);
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if (State.Thumb)
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{
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State.R14 = Pc | 1;
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}
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else
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{
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State.R14 = Pc - 4U;
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}
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if (X)
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{
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State.Thumb = !State.Thumb;
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}
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if (!State.Thumb)
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{
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Pc &= ~3U;
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}
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BranchWritePc(State, Pc + (uint)Op.Imm);
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}
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}
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private static void BranchWritePc(AThreadState State, uint Pc)
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{
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State.R15 = State.Thumb
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? Pc & ~1U
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: Pc & ~3U;
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}
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}
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} |