// +build wasm,!tinygo.arm,!avr

package runtime

import (
	"unsafe"
)

const GOARCH = "wasm"

// The bitness of the CPU (e.g. 8, 32, 64).
const TargetBits = 32

//go:extern __heap_base
var heapStartSymbol unsafe.Pointer

var (
	heapStart = uintptr(unsafe.Pointer(&heapStartSymbol))
	heapEnd   = (heapStart + wasmPageSize - 1) & (wasmPageSize - 1) // conservative guess: one page of heap memory
)

const wasmPageSize = 64 * 1024

// Align on word boundary.
func align(ptr uintptr) uintptr {
	return (ptr + 3) &^ 3
}