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Author SHA1 Message Date
Olof Kindgren
c1b8471678 Add reset_strategy parameter 
The reset_strategy parameter controls how much reset to apply to
SERV. It can be set to MINI for the default behaviour, or NONE to
only apply reset where absolutely needed and rely on POR to clear
FFs
 2020-11-10 15:16:19 +01:00
Olof Kindgren
44287ed244 Remove unused reset input from serv_alu 2020-11-10 15:16:19 +01:00
Olof Kindgren
6aeb39c7ac Clean up port maps in serv_top 2020-11-10 15:16:19 +01:00
Olof Kindgren
3751b58253 Clean up serv_csr interface 2020-11-10 15:16:19 +01:00
Olof Kindgren
554bdccba0 Silence some warnings 2020-11-10 15:16:19 +01:00
Olof Kindgren
cc42437e0f Prepare for alternative immediate decoder 2020-11-10 15:16:19 +01:00
Olof Kindgren
3f81f07db3 Clarify immdec_ctrl[1] 2020-11-10 15:16:19 +01:00
Olof Kindgren
8faf0cf33b Simplify and explain csr_imm_en 2020-11-10 15:16:19 +01:00
Qingyao Sun
215099dd3d Add instructions for iCESugar to README.md 2020-10-02 13:35:31 +02:00
Qingyao Sun
9beea931a7 servant: add iCESugar board support 2020-10-02 13:35:31 +02:00
Franck Jullien
7192fb23e0 servant: add AC701 board support 2020-09-30 15:32:33 +02:00
Olof Kindgren
ed9b774eba Add support for DE0 Nano 2020-09-29 17:57:26 +02:00
Olof Kindgren
ee6a86705d Set size of WITH_CSR to avoid Quartus warning 2020-09-29 17:52:02 +02:00
Olof Kindgren
f10cb89ae4 Fix double-defined result_lt wire 2020-09-29 14:12:57 +02:00
Soumil Krishnanand Heble
d5a4a2bc10
serv on iCEstick HX1K FPGA Evaluation Board (#34) 
* Lattice iCEstick Evaluation Board PCF File

* Added Lattice iCEstick Evaluation Board to servant fusesoc config

* Fixed icestick pcf to use LED as q since default memfile is blinky

* Updated README.md with iCEstick evaluation board details
 2020-09-28 21:31:31 +02:00
Olof Kindgren
9959cb3743 Add schematic for serv_decode 2020-08-27 21:03:52 +02:00
Olof Kindgren
0d5bc0c3c1 Document serv_ctrl 2020-08-26 16:45:40 +02:00
Olof Kindgren
25e86fdd3c Small optimization of instruction fetching logic 2020-08-26 16:45:40 +02:00
Olof Kindgren
3aa1a2c6e5 Simplify and document mstatus/mcause assignments 2020-08-26 16:45:40 +02:00
Olof Kindgren
fa6c420b10 Remove redundant mstatus register 2020-08-26 16:45:40 +02:00
Tom Verbeure
9142c3ca02
Update README.md (#35) 
Add link to user manual.
 2020-08-26 07:32:00 +02:00
Olof Kindgren
b405c5b78a Add serv_csr block diagram 2020-08-25 19:04:45 +02:00
Olof Kindgren
915cdf7933 Move RF address decoding to serv_immdec 2020-08-17 13:00:29 +02:00
Olof Kindgren
58e86384e7 Update serv_bufreg documentation 2020-08-17 10:37:41 +02:00
Olof Kindgren
bf0ec16ef8 Update ALU documentation 2020-08-16 23:25:09 +02:00
Olof Kindgren
6655d3c3f8 Add dependencies for building documentation 2020-08-16 00:18:49 +02:00
Olof Kindgren
fe79ea4088 Add initial documentation 2020-08-13 23:44:05 +02:00
Olof Kindgren
88a1a43438 Refactor and Use ALU subtractor for comparisons 2020-08-13 23:37:11 +02:00
Olof Kindgren
1c4e793885 Move CSR immediate decoder to immdec 2020-08-13 23:37:11 +02:00
Olof Kindgren
8775b321d9 Move jump decision logic to serv_state 2020-08-13 23:37:11 +02:00
Olof Kindgren
a614e427b8 Move immediate decoder to separate module 2020-08-13 23:37:11 +02:00
Olof Kindgren
119473d506 Move CSR_SOURCE_ constants into serv_csr.v 2020-08-13 23:37:11 +02:00
Eric Brombaugh
19e94bc032
Add OrangeCrab R0.2 servant target 
Added OrangeCrab R0.2 servant target
 2020-07-26 23:57:49 +02:00
Olof Kindgren
a742002707
Add links to movies 2020-06-05 15:30:51 +02:00
Olof Kindgren
acbedbe9c4 Prepare for release 1.0.2 2020-05-26 22:52:09 +02:00
Olof Kindgren
707f63ae8c Rename ser_shift to serv_shift for consistency 2020-05-26 22:48:40 +02:00
Olof Kindgren
188fd2ecc8 Restore nettype to wire in toplevels 
This is needed to prevent breaking sources following SERV that
don't handle nettype properly
 2020-05-26 22:46:01 +02:00
Olof Kindgren
9606e3503d Inline shift_reg 2020-05-26 22:43:23 +02:00
Olof Kindgren
40b018af66 Align RISC-V compliance test target code with upstream changes 2020-05-08 23:30:16 +02:00
Iñigo Muguruza
dd65d6097a
Update alhambra board (#29) 
* update pll out and add quotation marks to avoid parse error

* Update Alhambra II baud rate

* Update nextpnr freq option to 32
 2020-05-08 13:38:33 +02:00
Olof Kindgren
794748dac4 Add support for LX9 Microboard 2020-05-06 20:51:55 +02:00
Gwenhael Goavec-Merou
95c5c027a1 Add Saanlima pipistrello spartan6 LX45 2020-05-06 20:24:41 +02:00
Gwenhael Goavec-Merou
2a76adc8db Add compatibility with Xilinx ISE 2020-05-06 20:19:52 +02:00
Olof Kindgren
c0fc72b353 Add upduino2 servant target 2020-04-27 13:58:42 +02:00
Iñigo Muguruza
6ddf4b5a46
Add Alhambra board to repo (#23) 
* Add Alhambra preliminary pcf

* Add Alhambra to targets

* Fix uart pin number

* Update synth values

* Fix clock values

* Add Alhambra board to Readme

* Make small explanation about Alhambra baud rate
 2020-04-23 09:07:28 +02:00
Olof Kindgren
a4eb6c01fe Add ulx3s 85k servant target 2020-04-23 00:10:08 +02:00
Olof Kindgren
b2004f741a Update README 2020-04-21 12:28:42 +02:00
Olof Kindgren
4f902829a3 Bump core version serv-1.0.1 2020-04-19 23:06:54 +02:00
Olof Kindgren
fda7dd288a Optimize enable signal for mem_if buffers 2020-04-15 22:48:28 +02:00
Olof Kindgren
1d311edb7d Make counter internal in serv_state 2020-04-15 10:29:50 +02:00