random_int.c File Reference

Implements the OP_RANDOM_INT opcode for generating random integers in the VM. More...

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Functions
	if (lo.type !=VAL_INT||hi.type !=VAL_INT)
	if (b<=a)
	push_value (vm, make_int(a+r))
	free_value (lo)
	free_value (hi)

Variables
case	OP_RANDOM_INT
Value	lo = pop_value(vm)
int64_t	a = lo.i
int64_t	b = hi.i
int64_t	span = b - a
int64_t	r = (int64_t)(rand() % (span))
	break

Detailed Description

Implements the OP_RANDOM_INT opcode for generating random integers in the VM.

This file handles the OP_RANDOM_INT instruction, which generates a random integer within a specified range. The range bounds are popped from the stack, and the result is pushed back.

Behavior:

• Pops the upper and lower bounds from the stack.
• Generates a random integer within the range.
• Pushes the result onto the stack.

Error Handling:

• Exits with an error if the bounds are not integers.
• Exits with an error if the lower bound is greater than the upper bound.

Example:

• Bytecode: OP_RANDOM_INT
• Stack before: [10, 1]
• Stack after: [7]

Definition in file random_int.c.

Function Documentation

free_value() [1/2]

free_value

(

hi

)

free_value() [2/2]

free_value

(

lo

)

if() [1/2]

if

(

b<=

a

)

Definition at line 41 of file random_int.c.

if() [2/2]

if

(

lo.type !

= VAL_INT || hi.type != VAL_INT

)

Definition at line 36 of file random_int.c.

push_value()

push_value	(	vm	,
		make_int(a+r)	)

Variable Documentation

a

int64_t a = lo.i

Definition at line 40 of file random_int.c.

b

int64_t b = hi.i

Definition at line 40 of file random_int.c.

break

break

Definition at line 52 of file random_int.c.

lo

Value lo = pop_value(vm)

Definition at line 35 of file random_int.c.

OP_RANDOM_INT

case OP_RANDOM_INT

Definition at line 33 of file random_int.c.

r

int64_t r = (int64_t)(rand() % (span))

Definition at line 48 of file random_int.c.

span

int64_t span = b - a

Definition at line 47 of file random_int.c.