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133 Commits

Author SHA1 Message Date
Eddie Hung b66c99ece0
Merge pull request #1355 from YosysHQ/eddie/peepopt_dffmuxext 
peepopt_dffmux -- bit optimisations for word level $dff + (enable/reset) $mux cells
 2019-09-18 12:40:08 -07:00
Eddie Hung 14d72c39c3 Revert "Make one check $shift(x)? only; change testcase to be 8b" 
This reverts commit e2c2d784c8.
 2019-09-13 16:33:18 -07:00
Eddie Hung 3a49aa6b4a Tidy up 2019-09-11 14:20:49 -07:00
Eddie Hung 817ac7c5e0 Fix UB 2019-09-11 14:18:02 -07:00
Eddie Hung bdb5e0f29c Cope with presence of reset muxes too 2019-09-11 13:36:37 -07:00
Eddie Hung 4937917cd8 Cleanup 2019-09-11 13:22:52 -07:00
Eddie Hung bbef0d2ac8 Only display log message if did_something 2019-09-11 12:29:26 -07:00
Eddie Hung edf90afd20 Rename dffmuxext -> dffmux, also remove constants in dff+mux 2019-09-11 00:56:38 -07:00
Eddie Hung be0eaf3a9a
Fix misspelling 2019-09-09 16:46:33 -07:00
Eddie Hung e2c2d784c8 Make one check $shift(x)? only; change testcase to be 8b 2019-09-06 22:48:23 -07:00
Eddie Hung 433b0c677c Remove log_cell() calls 2019-09-04 13:42:44 -07:00
Eddie Hung 2b86055848 Add peepopt_dffmuxext 2019-09-04 12:35:15 -07:00
Eddie Hung 4aa505d1b2
Merge pull request #1344 from YosysHQ/eddie/ice40_signed_macc 
ice40_dsp to allow signed multipliers
 2019-09-01 10:11:33 -07:00
Eddie Hung 17b77fd411 Missing dep for test_pmgen 2019-08-30 14:01:07 -07:00
Eddie Hung c1459bc748 Do not restrict multiplier to unsigned 2019-08-30 12:22:14 -07:00
Eddie Hung 4eb5847dbd Cleanup 2019-08-28 18:10:33 -07:00
Eddie Hung 0af64df10c Account for D port being a constant 2019-08-28 15:32:38 -07:00
Eddie Hung 52c4655de3 No need to replace Q of slice since $shiftx is autoremove-d 2019-08-28 11:06:11 -07:00
Eddie Hung 11e3eb1009 More cleanup 2019-08-28 10:19:35 -07:00
Eddie Hung 86b538bd02 More cleanup 2019-08-28 10:11:09 -07:00
Eddie Hung c4d1bd988b Do not use default_params dict, hardcode default values, cleanup 2019-08-28 10:06:40 -07:00
Eddie Hung c3e9627afe Always generate if no match 2019-08-28 09:54:56 -07:00
Eddie Hung 0ebe2c9831 Rename test_pmgen arg xilinx_srl.{fixed,variable} 2019-08-28 09:27:03 -07:00
Eddie Hung 9172d4a674 Missing close bracket 2019-08-26 21:02:52 -07:00
Eddie Hung 54422c5bb4 Remove leftover header 2019-08-26 17:51:13 -07:00
Eddie Hung e95fb24574 Improve xilinx_srl.fixed generate, add .variable generate 2019-08-26 17:49:08 -07:00
Eddie Hung 45c34c87ee Account for maxsubcnt overflowing 2019-08-26 17:48:54 -07:00
Eddie Hung b32d6bf403 Add xilinx_srl_pm.variable to test_pmgen 2019-08-26 17:44:57 -07:00
Eddie Hung e574edc3e9 Populate generate for xilinx_srl.fixed pattern 2019-08-26 14:21:17 -07:00
Eddie Hung cf9e017127 Add xilinx_srl_fixed, fix typos 2019-08-26 14:20:06 -07:00
Eddie Hung 7911143827 Create new $__XILINX_SHREG_ cell for variable length too 2019-08-23 18:15:49 -07:00
Eddie Hung a048fc93e8 Do not allow Q of last cell of variable length SRL to be (* keep *) 2019-08-23 18:15:24 -07:00
Eddie Hung ee9f6e6243 Also add first.Q to chain_bits since variable length 2019-08-23 18:14:06 -07:00
Eddie Hung 70ce3d0670 Do not enforce !EN_POLARITY on $dffe 2019-08-23 18:11:28 -07:00
Eddie Hung 188b49378a Create new cell for fixed length SRL 2019-08-23 17:25:30 -07:00
Eddie Hung e081303ee8 Cleanup FDRE matching 2019-08-23 17:23:52 -07:00
Eddie Hung 54488cfb82 Oops don't need a finally block 2019-08-23 16:39:37 -07:00
Eddie Hung 83e2d87fb8 Keep track of bits in variable length chain, to check for taps 2019-08-23 16:21:10 -07:00
Eddie Hung f2d4814284 Don't forget $dff has no EN 2019-08-23 16:14:57 -07:00
Eddie Hung 2217d926a9 Same for variable length 2019-08-23 16:13:16 -07:00
Eddie Hung b1caf7be5e Filter on en_port for fixed length 2019-08-23 16:09:46 -07:00
Eddie Hung 513af10d77 Check clock is consistent 2019-08-23 15:18:26 -07:00
Eddie Hung c762618783 Fix last_cell.D 2019-08-23 15:08:49 -07:00
Eddie Hung ca5de78e76 Revert "Add a unique argument to pmgen's nusers()" 
This reverts commit 1d88887cfd.
 2019-08-23 15:04:00 -07:00
Eddie Hung e85e6e8d45 Revert "Fix polarity" 
This reverts commit 9cd23cf0fe.
 2019-08-23 15:03:42 -07:00
Eddie Hung 9cd23cf0fe Fix polarity 2019-08-23 14:49:34 -07:00
Eddie Hung c2757613b6 Check for non unique nusers/fanouts 2019-08-23 14:32:36 -07:00
Eddie Hung 1d88887cfd Add a unique argument to pmgen's nusers() 2019-08-23 14:32:17 -07:00
Eddie Hung 8ecfd55d5a Update doc 2019-08-23 14:16:41 -07:00
Eddie Hung 3d7f4aa0c8 Remove (* init *) entry when consumed into SRL 2019-08-23 13:56:01 -07:00