OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] - Rev 202

Rev

Go to most recent revision

Filtering Options

Clear current filter

Rev Log message Author Age Path
182 Bug fix for fast memories. This now works for memories with single cycle
latencies.
dgisselq 2074d 10h /zipcpu/trunk/
181 Adjusted the wishbone logic to include our wishbone simplification that if
CYC is ever low, STB must be low as well.
dgisselq 2074d 10h /zipcpu/trunk/
180 Cleaned up the stall logic--made it independent of whether or not we are
designed to be alternating or not.
dgisselq 2074d 10h /zipcpu/trunk/
179 Lots of changes, most (all?) of them to the non-pipelined core. The resulting
core is now about 100-120 LUTs smaller when not-pipelined, and yet maintains
the pipelined logic when necessary.
dgisselq 2074d 10h /zipcpu/trunk/
178 Rewrote the parameter controlled logic to be just that: perameter controller,
rather than depending upon generics. The result reduces our area by a couple
LUTs.
dgisselq 2074d 10h /zipcpu/trunk/
177 Fixed the illegal address logic to be more precise. dgisselq 2074d 10h /zipcpu/trunk/
176 Switched from distributed to block RAM, and adjusted the logic to help
timing closure. The resulting core will build in designs up to 200MHz in
speed.
dgisselq 2074d 11h /zipcpu/trunk/
175 Fixed the carry bit for logical shifts: it is the last bit shifted out of the
register. 0x80000000>>32 yields a 0 with carry set. Anything logically
shifted by a number greater than thirty two clears carry and register.
dgisselq 2074d 11h /zipcpu/trunk/
174 Simplified the divide to improve timing performance. dgisselq 2074d 11h /zipcpu/trunk/
173 Adjusted the pdfinfo field, to accommodate Google's bot. dgisselq 2074d 11h /zipcpu/trunk/

< Prev 1 2

Show All

powered by: WebSVN 2.1.0

© copyright 1999-2022 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.