Implement some x86 instructions

SamboyCoding · Sep 4, 2024 · ba6e174 · ba6e174
1 parent b2c8663
commit ba6e174
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Showing 4 changed files with 253 additions and 4 deletions.
diff --git a/Cpp2IL.Core/ISIL/InstructionSetIndependentOpCode.cs b/Cpp2IL.Core/ISIL/InstructionSetIndependentOpCode.cs
@@ -21,6 +21,7 @@ public class InstructionSetIndependentOpCode
     public static readonly InstructionSetIndependentOpCode Or = new(IsilMnemonic.Or, 3, InstructionSetIndependentOperand.OperandType.Any, InstructionSetIndependentOperand.OperandType.Any, InstructionSetIndependentOperand.OperandType.Any);
     public static readonly InstructionSetIndependentOpCode Xor = new(IsilMnemonic.Xor, 3, InstructionSetIndependentOperand.OperandType.Any, InstructionSetIndependentOperand.OperandType.Any, InstructionSetIndependentOperand.OperandType.Any);
     public static readonly InstructionSetIndependentOpCode Not = new(IsilMnemonic.Not, 1, InstructionSetIndependentOperand.OperandType.NotStack);
+    public static readonly InstructionSetIndependentOpCode Neg = new(IsilMnemonic.Neg, 1, InstructionSetIndependentOperand.OperandType.NotStack);
 
     public static readonly InstructionSetIndependentOpCode Compare = new(IsilMnemonic.Compare, 2, InstructionSetIndependentOperand.OperandType.Any, InstructionSetIndependentOperand.OperandType.Any);
 
@@ -38,6 +39,8 @@ public class InstructionSetIndependentOpCode
 
     public static readonly InstructionSetIndependentOpCode JumpIfEqual = new(IsilMnemonic.JumpIfEqual, 1, InstructionSetIndependentOperand.OperandType.Instruction);
     public static readonly InstructionSetIndependentOpCode JumpIfNotEqual = new(IsilMnemonic.JumpIfNotEqual, 1, InstructionSetIndependentOperand.OperandType.Instruction);
+    public static readonly InstructionSetIndependentOpCode JumpIfSign = new(IsilMnemonic.JumpIfSign, 1, InstructionSetIndependentOperand.OperandType.Instruction);
+    public static readonly InstructionSetIndependentOpCode JumpIfNotSign = new(IsilMnemonic.JumpIfNotSign, 1, InstructionSetIndependentOperand.OperandType.Instruction);
     public static readonly InstructionSetIndependentOpCode JumpIfGreater = new(IsilMnemonic.JumpIfGreater, 1, InstructionSetIndependentOperand.OperandType.Instruction);
     public static readonly InstructionSetIndependentOpCode JumpIfLess = new(IsilMnemonic.JumpIfLess, 1, InstructionSetIndependentOperand.OperandType.Instruction);
     public static readonly InstructionSetIndependentOpCode JumpIfGreaterOrEqual = new(IsilMnemonic.JumpIfGreaterOrEqual, 1, InstructionSetIndependentOperand.OperandType.Instruction);

diff --git a/Cpp2IL.Core/ISIL/IsilBuilder.cs b/Cpp2IL.Core/ISIL/IsilBuilder.cs
@@ -87,7 +87,9 @@ public void FixJumps()
     public void Or(ulong instructionAddress, InstructionSetIndependentOperand dest, InstructionSetIndependentOperand left, InstructionSetIndependentOperand right) => AddInstruction(new(InstructionSetIndependentOpCode.Or, instructionAddress, IsilFlowControl.Continue, dest, left, right));
 
     public void Not(ulong instructionAddress, InstructionSetIndependentOperand src) => AddInstruction(new(InstructionSetIndependentOpCode.Not, instructionAddress, IsilFlowControl.Continue, src));
+    public void Neg(ulong instructionAddress, InstructionSetIndependentOperand src) => AddInstruction(new(InstructionSetIndependentOpCode.Neg, instructionAddress, IsilFlowControl.Continue, src));
     public void Multiply(ulong instructionAddress, InstructionSetIndependentOperand dest, InstructionSetIndependentOperand src1, InstructionSetIndependentOperand src2) => AddInstruction(new(InstructionSetIndependentOpCode.Multiply, instructionAddress, IsilFlowControl.Continue, dest, src1, src2));
+    public void Divide(ulong instructionAddress, InstructionSetIndependentOperand dest, InstructionSetIndependentOperand src1, InstructionSetIndependentOperand src2) => AddInstruction(new(InstructionSetIndependentOpCode.Divide, instructionAddress, IsilFlowControl.Continue, dest, src1, src2));
 
     public void Call(ulong instructionAddress, ulong dest, params InstructionSetIndependentOperand[] args) => AddInstruction(new(InstructionSetIndependentOpCode.Call, instructionAddress, IsilFlowControl.MethodCall, PrepareCallOperands(dest, args)));
 
@@ -103,6 +105,10 @@ public void Return(ulong instructionAddress, InstructionSetIndependentOperand? r
     public void Goto(ulong instructionAddress, ulong target) => CreateJump(instructionAddress, target, InstructionSetIndependentOpCode.Goto, IsilFlowControl.UnconditionalJump);
 
     public void JumpIfEqual(ulong instructionAddress, ulong target) => CreateJump(instructionAddress, target, InstructionSetIndependentOpCode.JumpIfEqual, IsilFlowControl.ConditionalJump);
+
+    public void JumpIfSign(ulong instructionAddress, ulong target) => CreateJump(instructionAddress, target, InstructionSetIndependentOpCode.JumpIfSign, IsilFlowControl.ConditionalJump);
+
+    public void JumpIfNotSign(ulong instructionAddress, ulong target) => CreateJump(instructionAddress, target, InstructionSetIndependentOpCode.JumpIfNotSign, IsilFlowControl.ConditionalJump);
 
     public void JumpIfNotEqual(ulong instructionAddress, ulong target) => CreateJump(instructionAddress, target, InstructionSetIndependentOpCode.JumpIfNotEqual, IsilFlowControl.ConditionalJump);
 

diff --git a/Cpp2IL.Core/ISIL/IsilMnemonic.cs b/Cpp2IL.Core/ISIL/IsilMnemonic.cs
@@ -17,6 +17,7 @@ public enum IsilMnemonic
     Or,
     Xor,
     Not,
+    Neg,
     Compare,
     ShiftStack,
     Push,
@@ -29,6 +30,8 @@ public enum IsilMnemonic
     JumpIfGreaterOrEqual,
     JumpIfLess,
     JumpIfLessOrEqual,
+    JumpIfSign,
+    JumpIfNotSign,
     SignExtend,
     Interrupt,
     Nop,