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feat：vm 增加 double64 比较指令

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Luke 2025-06-25 17:08:12 +08:00
parent d3af0e3973
commit 26a77da955
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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCECommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCECommand class implements the {@link Command} interface and represents a conditional jump command in the virtual machine.
* This class compares two values from the stack, and if they are equal, it jumps to the specified target command.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the two double64 are equal, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCECommand implements Command {
/**
* Default constructor for creating an instance of DCECommand.
* This constructor is empty as no specific initialization is required.
*/
public DCECommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the operands are equal, jump to the target command
if (a == b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}

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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCGCommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCGCommand class implements the {@link Command} interface and represents a conditional jump command in the virtual machine.
* This class compares two values from the stack, and if the first value is greater than the second, it jumps to the specified target command.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the first double64 is greater than the second, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCGCommand implements Command {
/**
* Default constructor for creating an instance of DCGCommand.
* This constructor is empty as no specific initialization is required.
*/
public DCGCommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the first operand is greater than the second, jump to the target command
if (a > b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}

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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCGECommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCGECommand class implements the {@link Command} interface and represents a conditional jump command in the virtual machine.
* This class compares two values from the stack, and if the first value is greater than or equal to the second, it jumps to the specified target command.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the first double64 is greater than or equal to the second, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCGECommand implements Command {
/**
* Default constructor for creating an instance of DCGECommand.
* This constructor is empty as no specific initialization is required.
*/
public DCGECommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the first operand is greater than or equal to the second, jump to the target command
if (a >= b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}

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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCLCommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCLCommand class implements the {@link Command} interface and represents a conditional jump command in the virtual machine.
* This class compares two values from the stack, and if the first value is less than the second, it jumps to the specified target command.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the first double64 is less than the second, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCLCommand implements Command {
/**
* Default constructor for creating an instance of DCLCommand.
* This constructor is empty as no specific initialization is required.
*/
public DCLCommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the first operand is less than the second, jump to the target command
if (a < b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}

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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCLECommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCLECommand class implements the {@link Command} interface and represents a conditional jump command in the virtual machine.
* This class compares two values from the stack, and if the first value is less than or equal to the second, it jumps to the specified target command.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the first double64 is less than or equal to the second, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCLECommand implements Command {
/**
* Default constructor for creating an instance of DCLECommand.
* This constructor is empty as no specific initialization is required.
*/
public DCLECommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the first operand is less than or equal to the second, jump to the target command
if (a <= b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}

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src/main/java/org/jcnc/snow/vm/commands/control/double64/DCNECommand.java Normal file
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package org.jcnc.snow.vm.commands.control.double64;
import org.jcnc.snow.vm.interfaces.Command;
import org.jcnc.snow.vm.module.CallStack;
import org.jcnc.snow.vm.module.LocalVariableStore;
import org.jcnc.snow.vm.module.OperandStack;
import org.jcnc.snow.vm.utils.LoggingUtils;
/**
* The DCNECommand class implements the {@link Command} interface and represents a conditional jump command
* in the virtual machine that triggers if two values are not equal.
*
* <p>Specific behavior:</p>
* <ul>
* <li>Pops two double64 from the virtual machine stack.</li>
* <li>If the two double64 are not equal, jumps to the target command.</li>
* <li>Otherwise, the program continues with the next command.</li>
* </ul>
*/
public class DCNECommand implements Command {
/**
* Default constructor for creating an instance of DCNECommand.
* This constructor is empty as no specific initialization is required.
*/
public DCNECommand() {
// Empty constructor
}
/**
* Executes the virtual machine instruction's operation.
*
* <p>This method retrieves the necessary data from the virtual machine stack and local variable store based on the instruction's
* specific implementation, performs the operation, and updates the program counter (PC) to reflect the next instruction
* to be executed.</p>
*
* <p>The parameters provided allow the command to manipulate the operand stack, modify the local variables, and control the flow
* of execution by updating the program counter.</p>
*
* <p>The exact behavior of this method will depend on the specific instruction being executed (e.g., arithmetic, branching,
* function calls, etc.). For example, a `CALL` instruction will modify the call stack by pushing a new frame,
* while a `POP` instruction will remove an item from the operand stack.</p>
*
* @param parts The array of instruction parameters, which usually includes the operator and related arguments
* (such as target addresses, values, or function names). These parameters may vary based on
* the instruction being executed.
* @param currentPC The current program counter-value, indicating the address of the instruction being executed.
* This value is typically incremented after the execution of each instruction to point to the next one.
* @param operandStack The virtual machine's operand stack manager, responsible for performing operations on the operand stack,
* such as pushing, popping, and peeking values.
* @param localVariableStore The local variable store, typically used to manage method-local variables during instruction execution.
* The store may not be used in every command but can be leveraged by instructions that require access
* to local variables.
* @param callStack The virtual machine's call stack, which keeps track of the method invocation hierarchy. It is used by
* instructions that involve method calls or returns (such as `CALL` and `RETURN` instructions).
* @return The updated program counter-value, typically the current program counter-value incremented by 1, unless the
* instruction modifies control flow (such as a `JUMP` or `CALL`), in which case it may return a new address
* corresponding to the target of the jump or the subroutine to call.
*/
@Override
public int execute(String[] parts, int currentPC, OperandStack operandStack, LocalVariableStore localVariableStore, CallStack callStack) {
// Parse the target command address
int target = Integer.parseInt(parts[1]);
// Pop the two operands from the stack
double b = (double) operandStack.pop();
double a = (double) operandStack.pop();
// If the operands are not equal, jump to the target command
if (a != b) {
LoggingUtils.logInfo("Jumping to command", String.valueOf(target));
return target;
}
return currentPC + 1;
}
}