| Rev |
Log message |
Author |
Age |
Path |
| 54 |
Updated copyright notice. |
dgisselq |
3078d 09h |
/xulalx25soc/trunk/rtl/ |
| 52 |
This brings the XuLA2-LX25 SoC up to speed with the rest of the ZipCPU, and
prepares it for the 32x32 bit multiply instruction set change. |
dgisselq |
3118d 09h |
/xulalx25soc/trunk/rtl/ |
| 51 |
Lots of bug fixes. The ugliest were in the prefetch cache, where instructions
from one cache line were being issued as valid in another. Other fixes include
pipeline fixes so that LOD (Rx),Rx; LOD(Rx),Rx works, and more. Finally, the
decode was adjusted so that brev no longer affects the flags. |
dgisselq |
3128d 07h |
/xulalx25soc/trunk/rtl/ |
| 50 |
Updates to fix some broken early branching code, both in idecode and pfcache. |
dgisselq |
3137d 10h |
/xulalx25soc/trunk/rtl/ |
| 48 |
Cleaned up the documentation a touch. It no longer reads like the bugs I used
to debug are still being debugged ... |
dgisselq |
3148d 12h |
/xulalx25soc/trunk/rtl/ |
| 46 |
This is a bug fix release--fixing the bug that kept dumpsdram.cpp/wbsdram.v
from working when long pipelined reads were interrupted by the necessity of
a pair of refresh cycles. |
dgisselq |
3148d 12h |
/xulalx25soc/trunk/rtl/ |
| 45 |
Minor cosmetic change, eliminates a warning in Xilinx's XISE but offers no
functional difference. |
dgisselq |
3152d 08h |
/xulalx25soc/trunk/rtl/ |
| 44 |
NELM parameter adjusted to reflect the maximum number of lines the compressed
scope can handle: 31, not 32. |
dgisselq |
3152d 08h |
/xulalx25soc/trunk/rtl/ |
| 43 |
Commentary changes only, no substance. |
dgisselq |
3152d 08h |
/xulalx25soc/trunk/rtl/ |
| 39 |
An attempt at a bugfix. We'll see if this works any better downstream. |
dgisselq |
3155d 14h |
/xulalx25soc/trunk/rtl/ |
| 37 |
These fixes were necessary to get the SDRAM into a working simulation
capability. It is finally what it was supposed to be: cycle accurate. Sadly,
to do this, I did need to make a subtle change to rtl/wbsdram.v. (I was having
a problem with external input clocking in Verilator. This fixes it--but its
a Verilator only change--to rtl/wbsdram.v that is.) |
dgisselq |
3156d 12h |
/xulalx25soc/trunk/rtl/ |
| 34 |
Bug fix: This sets as a positive voltage bias (not negative) the maximum
value of 0x07fff, where as the negative maximum value of 0x08000 properly
(now) reflects nearly ground--as one would desire. (Last time around I had
these backwards.) |
dgisselq |
3160d 09h |
/xulalx25soc/trunk/rtl/ |
| 32 |
Just noticed that the timer was fixed on this. This change adjusts the
timer to support audio at a user selectable rate. |
dgisselq |
3160d 10h |
/xulalx25soc/trunk/rtl/ |
| 31 |
A bug fix, although one that rearranges the bus. The first four I/O locations
have been adjusted. The new locations are reflected in wishbone.html. In
addition, the PWM and UART devices no longer create bus errors when accessed.
Finally, this version uses a `define XULA25 to determine whether or not to build
for the XuLA2-LX9 or the XuLA2-LX25. If defined, it will build for the
XuLA2-LX25. If not, for the XuLA2-LX9. The ideal location for this define
would be to place it into your Xilinx configuration, should you wish to build
for the LX25. |
dgisselq |
3160d 11h |
/xulalx25soc/trunk/rtl/ |
| 27 |
Bug fix: the last_state register now correctly reflects all 5-bits of the state
machine. (Useful when detecting lockups ...) |
dgisselq |
3161d 12h |
/xulalx25soc/trunk/rtl/ |
| 26 |
Some bug fixes, and the long jump early branching integration. |
dgisselq |
3161d 12h |
/xulalx25soc/trunk/rtl/ |
| 23 |
This fixes a bug in the early branching system, and clarifies that early
branch instructions will not affect the flags. It's a basic bug fix update. |
dgisselq |
3169d 21h |
/xulalx25soc/trunk/rtl/ |
| 21 |
Files, not links, to replace what were once broken links in this project. |
dgisselq |
3222d 21h |
/xulalx25soc/trunk/rtl/ |
| 19 |
Step one in fixing soft link poblems. The following files were soft links,
and not brought into the svn repository properly. They'll be replaced in the
next update with their full sources. |
dgisselq |
3222d 21h |
/xulalx25soc/trunk/rtl/ |
| 18 |
Got the bitfile back up to speed at 80 MHz. |
dgisselq |
3226d 11h |
/xulalx25soc/trunk/rtl/ |
