diff --git a/mem/mem.go b/mem/mem.go
index 94c29fa..b6c9e5a 100644
--- a/mem/mem.go
+++ b/mem/mem.go
@@ -5,7 +5,7 @@ import (
 )
 
 const (
-	Kilobyte uintptr = 1 << (10 * (iota + 1))
+	Kilobyte = 1 << (10 * (iota + 1))
 	Megabyte
 	Gigabyte
 	Terabyte
@@ -110,3 +110,12 @@ func Aligned(address uintptr, alignment uintptr) bool {
 	}
 	return address&(alignment-1) == 0
 }
+
+// ExtendSlice returns a copy of the given slice, increasing its length, but leaving the capacity intact.
+func ExtendSlice[T any](slice []T, amount uintptr) []T {
+	if amount+uintptr(len(slice)) > uintptr(cap(slice)) {
+		panic("extendslice: cannot extend slice past its capacity")
+	}
+
+	return slice[: uintptr(len(slice))+amount : cap(slice)]
+}