lt.c File Reference

Implements the OP_LT opcode for less-than comparison in the VM. More...

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Functions
	if (a.type !=VAL_INT||b.type !=VAL_INT)
	free_value (a)
	free_value (b)
	push_value (vm, res)

Variables
case	OP_LT
Value	a = pop_value(vm)
Value	res = make_int(a.i < b.i ? 1 : 0)
	break

Detailed Description

Implements the OP_LT opcode for less-than comparison in the VM.

This file handles the OP_LT instruction, which checks if the first value is less than the second. The values are popped from the stack, and the result (1 or 0) is pushed back.

Behavior:

• Pops two values from the stack.
• Checks if the first value is less than the second.
• Pushes 1 (true) or 0 (false) onto the stack.

Error Handling:

• Exits with an error if the operands are of incompatible types.

Example: // Bytecode: OP_LT // Stack before: [10, 42] // Stack after: [1]

Definition in file lt.c.

Function Documentation

free_value() [1/2]

free_value

(

a

)

free_value() [2/2]

free_value

(

b

)

if()

if

(

a.type !

= VAL_INT || b.type != VAL_INT

)

Definition at line 34 of file lt.c.

push_value()

push_value	(	vm	,
		res	)

Variable Documentation

a

Value a = pop_value(vm)

Definition at line 33 of file lt.c.

break

break

Definition at line 43 of file lt.c.

OP_LT

case OP_LT

Definition at line 31 of file lt.c.

res

Value res = make_int(a.i < b.i ? 1 : 0)

Definition at line 39 of file lt.c.