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13586 commits 94 branches 53 tags 44 MiB
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342 commits

Author SHA1 Message Date
Sean Cross
82f60ba938 Makefile: don't assume python is called python3 
On some architectures, notably on Windows, the official name for the
Python binary from python.org is `python`.  The build system assumes
that python is called `python3`, which breaks under this architecture.

There is already infrastructure in place to determine the name of the
Python binary when building PYOSYS.  Since Python is now always required
to build Yosys, enable this check universally which sets the
`PYTHON_EXECUTABLE` variable.

Then, reuse this variable in other Makefiles as necessary, rather than
hardcoding `python3` everywhere.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-10-19 14:04:52 +08:00
Eddie Hung
90236025b7 Missing (* mul2dsp *) for sliceB 2019-09-27 14:21:47 -07:00
Eddie Hung
27e5bf5aad Stop trying to be too smart by prematurely optimising 2019-09-26 09:57:11 -07:00
Eddie Hung
35aaa8d73a mul2dsp.v slice names 2019-09-25 22:58:55 -07:00
Eddie Hung
34aa3532fb Remove unnecessary check for A_SIGNED != B_SIGNED; be more explicit 2019-09-25 17:26:47 -07:00
Eddie Hung
a4238637ac Revert "Remove _TECHMAP_CELLTYPE_ check since all $mul" 
This reverts commit 234738b103.
 2019-09-25 17:25:44 -07:00
Eddie Hung
f4387e817c Revert "No need for $__mul anymore?" 
This reverts commit 1d875ac76a.
 2019-09-25 17:24:11 -07:00
Eddie Hung
234738b103 Remove _TECHMAP_CELLTYPE_ check since all $mul 2019-09-25 16:51:31 -07:00
Eddie Hung
1d875ac76a No need for $__mul anymore? 2019-09-25 14:06:21 -07:00
Eddie Hung
ab46d9017b Fix signedness bug 2019-09-20 10:11:36 -07:00
Eddie Hung
f2d030a70f Be sensitive to signedness 2019-09-10 15:14:55 -07:00
Eddie Hung
76eedee089 Really get rid of 'opt_expr -fine' by being explicit 2019-09-10 14:26:12 -07:00
Eddie Hung
e742478e1d Merge remote-tracking branch 'origin/master' into xc7dsp 2019-09-05 13:01:27 -07:00
Eddie Hung
295c18bd6b Merge branch 'xc7dsp' of github.com:YosysHQ/yosys into xc7dsp 2019-08-30 09:50:20 -07:00
David Shah
6919c0f9b0 Merge branch 'master' into xc7dsp 2019-08-30 13:57:15 +01:00
Eddie Hung
c4e5310823 Use a dummy box file if none specified 2019-08-28 20:58:55 -07:00
Eddie Hung
076af2e617 Missing newline 2019-08-20 20:37:52 -07:00
Eddie Hung
e35dfc5ab5 Only swap ports if $mul and not $__mul 2019-08-13 16:52:15 -07:00
Eddie Hung
2a1b98d478 Add DSP_A_MAXWIDTH_PARTIAL, refactor 2019-08-13 10:21:24 -07:00
Eddie Hung
f890cfb63b Merge remote-tracking branch 'origin/master' into xc7dsp 2019-08-12 11:32:10 -07:00
Eddie Hung
041defc5a6 Reformat so it shows up/looks nice when "help $alu" and "help $alu+" 2019-08-09 12:33:39 -07:00
Eddie Hung
acfb672d34 A bit more on where $lcu comes from 2019-08-09 09:50:47 -07:00
Eddie Hung
5aef998957 Add more comments 2019-08-09 09:48:17 -07:00
Eddie Hung
dae7c59358 Add a few comments to document $alu and $lcu 2019-08-08 10:05:28 -07:00
Eddie Hung
e3d898dccb Merge remote-tracking branch 'origin/master' into xc7dsp 2019-08-07 13:44:08 -07:00
Clifford Wolf
023086bd46 Add $_NMUX_, add "abc -g cmos", add proper cmos cell costs 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-08-06 04:47:55 +02:00
Eddie Hung
105aaeaf59 Trim Y_WIDTH 2019-08-01 14:33:16 -07:00
Eddie Hung
65de9aaaa9 Add DSP_SIGNEDONLY back 2019-08-01 14:29:00 -07:00
Eddie Hung
915f4e34bf DSP_MINWIDTH -> DSP_{A,B,Y}_MINWIDTH 2019-08-01 13:20:34 -07:00
Eddie Hung
332b86491d Revert "Do not do sign extension in techmap; let packer do it" 
This reverts commit 595a8f032f.
 2019-08-01 12:17:14 -07:00
Eddie Hung
7e86c8bcfb Fix B_WIDTH > DSP_B_MAXWIDTH case 2019-08-01 10:01:43 -07:00
Eddie Hung
d2c33863d0 Do not compute sign bit if result is zero 2019-07-31 16:04:19 -07:00
Eddie Hung
60c4887d15 For signed multipliers, compute sign bit separately... 2019-07-31 15:45:41 -07:00
Eddie Hung
2f71c2c219 Fix spacing 2019-07-26 15:30:51 -07:00
Eddie Hung
c39ccc65e9 Add copyright header, comment on cascade 2019-07-24 10:49:09 -07:00
Eddie Hung
151c5c96c0 Typo for Y_WIDTH 2019-07-23 15:05:20 -07:00
Eddie Hung
3a7aeb028d Use minimum sized width wires 2019-07-22 13:01:26 -07:00
Eddie Hung
47fd042b9f Indirection via $__soft_mul 2019-07-19 20:20:33 -07:00
Eddie Hung
595a8f032f Do not do sign extension in techmap; let packer do it 2019-07-19 15:50:13 -07:00
Eddie Hung
bba72f03dd Do not $mul -> $__mul if A and B are less than maxwidth 2019-07-19 11:54:26 -07:00
Eddie Hung
1d14cec7fd Add a DSP_MINWIDTH macro, and soft-logic for {A_WIDTH,B_WIDTH} <= 1 too 2019-07-19 11:39:24 -07:00
Eddie Hung
7bdb3996e2 Merge branch 'xc7dsp' into ice40dsp 2019-07-19 10:28:38 -07:00
Eddie Hung
ca94c2d3c4 Fix typo in B 2019-07-19 10:27:44 -07:00
Eddie Hung
2168568f43 Use sign_headroom instead 2019-07-19 09:16:13 -07:00
Eddie Hung
0157043b97 Merge remote-tracking branch 'origin/master' into xc7dsp 2019-07-18 20:36:48 -07:00
Eddie Hung
15c2a79ab9 Do not define `DSP_SIGNEDONLY macro if no exists 2019-07-18 16:04:58 -07:00
Eddie Hung
42e40dbd0a Merge remote-tracking branch 'origin/master' into ice40dsp 2019-07-18 15:45:25 -07:00
Eddie Hung
2339b7fc37 mul2dsp to create cells that can be interchanged with $mul 2019-07-18 15:37:35 -07:00
Eddie Hung
e22a752242 Make consistent 2019-07-18 15:21:23 -07:00
Eddie Hung
8326af5418 Fix signed multiplier decomposition 2019-07-18 13:11:26 -07:00