region_intersects — determine intersection of region with known resources
int region_intersects ( | resource_size_t start, |
| size_t size, | |
const char * name); |
Check if the specified region partially overlaps or fully eclipses a
resource identified by name. Return REGION_DISJOINT if the region
does not overlap name, return REGION_MIXED if the region overlaps
type and another resource, and return REGION_INTERSECTS if the
region overlaps type and no other defined resource. Note, that
REGION_INTERSECTS is also returned in the case when the specified
region overlaps RAM and undefined memory holes.
region_intersect is used by memory remapping functions to ensure
the user is not remapping RAM and is a vast speed up over walking
through the resource table page by page.