pow.c File Reference

Implements the OP_POW opcode for exponentiation in the VM. More...

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Functions
	if (a.type !=VAL_INT||b.type !=VAL_INT)
	if (exp< 0)
	free_value (a)
	free_value (b)

Variables
case	OP_POW
Value	a = pop_value(vm)
int64_t	base = a.i
int64_t	exp = b.i
int64_t	res = 1
	else
	break

Detailed Description

Implements the OP_POW opcode for exponentiation in the VM.

This file handles the OP_POW instruction, which computes the power of two integer values. The values are popped from the stack, and the result is pushed back.

Behavior:

• Pops two integer values from the stack.
• Computes the power of the first value raised to the second.
• Pushes the result onto the stack.

Error Handling:

• Exits with an error if the operands are not integers.

Example: // Bytecode: OP_POW // Stack before: [2, 3] // Stack after: [8]

Definition in file pow.c.

Function Documentation

free_value() [1/2]

free_value

(

a

)

free_value() [2/2]

free_value

(

b

)

if() [1/2]

if

(

a.type !

= VAL_INT || b.type != VAL_INT

)

Definition at line 34 of file pow.c.

if() [2/2]

if

(

)

Definition at line 41 of file pow.c.

Variable Documentation

a

Value a = pop_value(vm)

Definition at line 33 of file pow.c.

base

int64_t base = a.i

Definition at line 38 of file pow.c.

break

break

Definition at line 53 of file pow.c.

else

else

Initial value:

{
while (exp > 0) {
if (exp & 1) res *= base;
base *= base;
exp >>= 1;
}
}
push_value(vm, make_int(res))

Definition at line 43 of file pow.c.

exp

int64_t exp = b.i

Definition at line 39 of file pow.c.

OP_POW

case OP_POW

Definition at line 31 of file pow.c.

res

int64_t res = 1

Definition at line 40 of file pow.c.