isqrt.c File Reference

Implements the OP_ISQRT opcode for integer square root (floor). More...

Go to the source code of this file.

Functions
	if (!((v.type==VAL_INT)||(v.type==VAL_FLOAT)))
	if (a<=0)
	while (bit, n)
	free_value (v)
	push_value (vm, make_int(r))

Variables
case	OP_ISQRT
int64_t	a = (v.type == VAL_INT) ? v.i : (int64_t)v.d
uint64_t	n = (uint64_t)a
uint64_t	x = 0
uint64_t	bit = (uint64_t)1 << 62
int64_t	r = (int64_t)x
	break

Detailed Description

Implements the OP_ISQRT opcode for integer square root (floor).

Behavior:

• Pops one numeric operand (int or float), converts to int64.
• Computes floor(sqrt(max(0, x))) as an integer without floating point.
• Pushes VAL_INT result.

Stack effect:

• Pop: x
• Push: isqrt(x)

Types:

• Accepts VAL_INT and VAL_FLOAT; others cause a runtime error.

Definition in file isqrt.c.

Function Documentation

free_value()

free_value

(

v

)

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if() [1/2]

if

(

!

(v.type==VAL_INT)||(v.type==VAL_FLOAT)

)

Definition at line 29 of file isqrt.c.

if() [2/2]

if

(

a<=

0

)

Definition at line 34 of file isqrt.c.

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push_value()

push_value	(	vm	,
		make_int(r)	)

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while()

while	(	bit	,
		n	)

Definition at line 43 of file isqrt.c.

Variable Documentation

a

int64_t a = (v.type == VAL_INT) ? v.i : (int64_t)v.d

Definition at line 33 of file isqrt.c.

bit

uint64_t bit = (uint64_t)1 << 62

Definition at line 42 of file isqrt.c.

break

break

Definition at line 57 of file isqrt.c.

n

uint64_t n = (uint64_t)a

Definition at line 40 of file isqrt.c.

OP_ISQRT

case OP_ISQRT

Definition at line 27 of file isqrt.c.

r

int64_t r = (int64_t)x

Definition at line 54 of file isqrt.c.

x

uint64_t x = 0

Definition at line 41 of file isqrt.c.