dup.c File Reference

Implements the OP_DUP opcode for duplicating the top stack value in the VM. More...

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Functions
	exit (1)
	push_value (vm, copy_value(&top))

Variables
case	OP_DUP
case Runtime	error
Value	top = vm->stack[vm->sp]
	break

Detailed Description

Implements the OP_DUP opcode for duplicating the top stack value in the VM.

This file handles the OP_DUP instruction, which duplicates the top value on the stack. The duplicated value is pushed back onto the stack.

Behavior:

• Duplicates the top value on the stack.
• Pushes the duplicated value onto the stack.

Error Handling:

• Exits with an error if the stack is empty.

Example: // Bytecode: OP_DUP // Stack before: [42] // Stack after: [42, 42]

Definition in file dup.c.

Function Documentation

exit()

exit

(

1

)

push_value()

push_value	(	vm	,
		copy_value &	top )

Variable Documentation

break

break

Definition at line 37 of file dup.c.

error

case Runtime error

Definition at line 32 of file dup.c.

OP_DUP

case OP_DUP

Definition at line 30 of file dup.c.

top

Value top = vm->stack[vm->sp]

Definition at line 35 of file dup.c.