use of discontiguos-netmasks to optimize TCAM resource usage as applicable to acls

[Randy]

NX-OS appears to do this:

actual acl:
show access-list v1873
IP access list v1873

10 permit ip 10.28.0.0/16 10.28.72.0/24
20 permit ip 10.28.0.0/16 10.28.74.0/24
30 permit ip 10.28.73.0/24 10.28.73.0/24
40 permit ip 10.28.73.0/24 10.28.75.0/24
50 permit ip 10.28.73.0/24 10.28.76.0/24

Same acl in TCAM:
sh system internal access-list vlan 1873 input statis
<SNIP>
[0163:011a:011a] prec 1 permit-routed ip 10.28.0.0/16 10.28.72.0/255.255.253.0    [0]
[0164:011b:011b] prec 1 permit-routed ip 10.28.73.0/24 10.28.76.0/24   [0]
[0165:011c:011c] prec 1 permit-routed ip 10.28.73.0/24 10.28.73.0/255.255.253.0    [0]

(I don't recall this on IOS based platforms that did acl-lookups in hardware - perhaps I am wrong! May be I didn't configure an acl as the one above.)

Can someone educate me?
./Randy