Page Menu
Home
GnuPG
Search
Configure Global Search
Log In
Files
F20320722
README
No One
Temporary
Actions
View File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Size
760 B
Subscribers
None
README
View Options
This directory contains mpn functions optimized for MIPS3. Example of
processors that implement MIPS3 are R4000, R4400, R4600, R4700, and R8000.
RELEVANT OPTIMIZATION ISSUES
1. On the R4000 and R4400, branches, both the plain and the "likely" ones,
take 3 cycles to execute. (The fastest possible loop will take 4 cycles,
because of the delay insn.)
On the R4600, branches takes a single cycle
On the R8000, branches often take no noticable cycles, as they are
executed in a separate function unit..
2. The R4000 and R4400 have a load latency of 4 cycles.
3. On the R4000 and R4400, multiplies take a data-dependent number of
cycles, contrary to the SGI documentation. There seem to be 3 or 4
possible latencies.
STATUS
Good...
File Metadata
Details
Attached
Mime Type
text/plain
Expires
Fri, Mar 14, 4:29 AM (1 d, 7 h)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
30/ee/c151e454724f2976371857284bd9
Attached To
rC libgcrypt
Event Timeline
Log In to Comment