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Code Activity
14619 commits 124 branches 59 tags 44 MiB
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370 commits

Author SHA1 Message Date
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
Eddie Hung
2024357f32 Working for unsigned 2019-07-18 10:53:18 -07:00
Eddie Hung
d5cd2c80be Cleanup 2019-07-18 09:20:48 -07:00
David Shah
16b0ccf04c mul2dsp: Lower partial products always have unsigned inputs 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-18 11:33:37 +01:00
Eddie Hung
8dca8d486e Fix mul2dsp signedness 2019-07-17 12:44:52 -07:00
Eddie Hung
1b62b82e05 A_SIGNED == B_SIGNED so flip both 2019-07-17 11:34:18 -07:00
Eddie Hung
0b6d47f8bf Add DSP_{A,B}_SIGNEDONLY macro 2019-07-16 15:55:13 -07:00
Eddie Hung
569cd66764 Merge branch 'xc7dsp' of github.com:YosysHQ/yosys into xc7dsp 2019-07-16 14:18:36 -07:00
Eddie Hung
7a58ee78dc gen_lut to return correctly sized LUT mask 2019-07-16 12:45:29 -07:00
David Shah
8da4c1ad82 mul2dsp: Fix edge case where Y_WIDTH is less than B_WIDTH+`DSP_A_MAXWIDTH 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-16 16:44:40 +01:00
David Shah
7a75f5f3ac mul2dsp: Fix indentation 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-16 16:19:32 +01:00
Eddie Hung
fd5b3593d8 Do not swap if equals 2019-07-15 16:52:37 -07:00
Eddie Hung
42f8e68e76 OUT port to Y in generic DSP 2019-07-15 14:45:47 -07:00
Eddie Hung
91fcf034bc Only swap if B_WIDTH > A_WIDTH 2019-07-15 11:24:11 -07:00
Eddie Hung
1793e6018a Tidy up 2019-07-15 11:19:54 -07:00
Eddie Hung
713337255e
Revert "Add "synth -keepdc" option" 2019-07-09 10:14:23 -07:00
Eddie Hung
dd9771cbcd Add synth -keepdc option 2019-07-08 19:14:54 -07:00
David Shah
e78864993a mul2dsp: Fix typo 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-08 18:42:41 +01:00
David Shah
269ff450f5 Add mul2dsp multiplier splitting rule and ECP5 mapping 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-08 18:42:09 +01:00
Eddie Hung
627a62a797 Make doc consistent 2019-06-14 10:32:46 -07:00
Eddie Hung
f7a9769c14 Merge remote-tracking branch 'origin/master' into xaig 2019-06-12 08:50:39 -07:00
Clifford Wolf
c4b8575f43 Add "wreduce -keepdc", fixes #1016 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-05-20 15:36:13 +02:00
Eddie Hung
d9c4644e88 Merge remote-tracking branch 'origin/master' into clifford/specify 2019-05-03 15:05:57 -07:00