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* xilinx: Improve flip-flop handling.Marcin Kościelnicki2019-12-183-11/+12
| | | | | | | | | | | | | | | | This adds support for infering more kinds of flip-flops: - FFs with async set/reset and clock enable - FFs with sync set/reset - FFs with sync set/reset and clock enable Some passes have been moved (and some added) in order for dff2dffs to work correctly. This gives us complete coverage of Virtex 6+ and Spartan 6 flip-flop capabilities (though not latch capabilities). Older FPGAs also support having both a set and a reset input, which will be handled at a later data.
* Merge pull request #1574 from YosysHQ/eddie/xilinx_lutramEddie Hung2019-12-1610-53/+228
|\ | | | | xilinx: add LUTRAM rules for RAM32M, RAM64M
| * Disable RAM16X1D testEddie Hung2019-12-131-17/+17
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| * Remove extraneous synth_xilinx callEddie Hung2019-12-121-2/+0
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| * Add tests for these new modelsEddie Hung2019-12-121-0/+40
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| * Add #1460 testcaseEddie Hung2019-12-121-0/+34
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| * Rename memory tests to lutram, add more xilinx testsEddie Hung2019-12-129-53/+156
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* | Add another testEddie Hung2019-12-161-1/+8
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* | Accidentally commented out testsEddie Hung2019-12-161-47/+47
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* | Add unconditional match blocks for force RAMEddie Hung2019-12-161-0/+9
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* | Merge blockram testsEddie Hung2019-12-163-47/+81
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* | Fixing compiler warning/issues. Moving test script to the correct placeDiego H2019-12-161-6/+6
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* | Removing fixed attribute value to !ramstyle rulesDiego H2019-12-151-3238/+0
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* | Merging attribute rules into a single match block; Adding testsDiego H2019-12-153-0/+3373
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* | Renaming BRAM memory tests for the sake of uniformityDiego H2019-12-132-6/+6
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* | Fixing citation in xc7_xcu_brams.txt file. Fixing RAMB36E1 test.Diego H2019-12-121-2/+2
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* | Adding a note (TODO) in the memory_params.ys check fileDiego H2019-12-121-0/+2
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* | Updating RAMB36E1 thresholds. Adding test for both RAMB18E1/RAMB36E1Diego H2019-12-122-0/+90
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* Merge pull request #1545 from YosysHQ/eddie/ice40_wrapcarry_attrEddie Hung2019-12-093-23/+136
|\ | | | | Preserve SB_CARRY name and attributes when using $__ICE40_CARRY_WRAPPER
| * unmap $__ICE40_CARRY_WRAPPER in testEddie Hung2019-12-091-1/+21
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| * ice40_wrapcarry to really preserve attributes via -unwrap optionEddie Hung2019-12-091-3/+5
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| * Drop keep=0 attributes on SB_CARRYEddie Hung2019-12-061-2/+2
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| * Add WIP test for unwrapping $__ICE40_CARRY_WRAPPEREddie Hung2019-12-051-0/+30
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| * Check SB_CARRY name also preservedEddie Hung2019-12-031-0/+1
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| * Add testcaseEddie Hung2019-12-031-0/+60
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* | tests: arch: xilinx: Change order of arguments in macc.shJan Kowalewski2019-12-061-1/+1
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* | iopadmap: Refactor and fix tristate buffer mapping. (#1527)Marcin Kościelnicki2019-12-041-0/+99
|/ | | | | | | The previous code for rerouting wires when inserting tristate buffers was overcomplicated and didn't handle all cases correctly (in particular, only cell connections were rewired — internal connections were not).
* Merge pull request #1524 from pepijndevos/gowindffinitClifford Wolf2019-12-033-2/+301
|\ | | | | Gowin: add and test DFF init values
| * update testPepijn de Vos2019-12-031-2/+3
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| * Use -match-init to not synth contradicting init valuesPepijn de Vos2019-12-031-10/+12
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| * attempt to fix formattingPepijn de Vos2019-11-251-138/+138
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| * gowin: add and test dff init valuesPepijn de Vos2019-11-252-0/+296
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* | abc9: Fix breaking of SCCsDavid Shah2019-12-011-0/+6
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
* | Merge pull request #1536 from YosysHQ/eddie/xilinx_dsp_muladdEddie Hung2019-11-271-0/+69
|\ \ | | | | | | xilinx_dsp: consider sign and zero-extension when packing post-multiplier adder
| * | No need for -abc9Eddie Hung2019-11-261-1/+1
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| * | Add citationEddie Hung2019-11-261-0/+1
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| * | Add testcase derived from fastfir_dynamictaps benchmarkEddie Hung2019-11-261-0/+68
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* | | Merge pull request #1534 from YosysHQ/mwk/opt_share-fixClifford Wolf2019-11-271-0/+13
|\ \ \ | | | | | | | | opt_share: Fix handling of fine cells.
| * | | opt_share: Fix handling of fine cells.Marcin Kościelnicki2019-11-271-0/+13
| |/ / | | | | | | | | | Fixes #1525.
* / / Remove notesEddie Hung2019-11-261-9/+0
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* | clkbufmap: Add support for inverters in clock path.Marcin Kościelnicki2019-11-251-5/+16
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* | xilinx: Use INV instead of LUT1 when applicableMarcin Kościelnicki2019-11-254-8/+8
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* Merge pull request #1511 from YosysHQ/dave/alwaysClifford Wolf2019-11-221-0/+63
|\ | | | | sv: Error checking for always_comb, always_latch and always_ff
| * sv: Add tests for SV always typesDavid Shah2019-11-211-0/+63
| | | | | | | | Signed-off-by: David Shah <dave@ds0.me>
* | gowin: Remove show command from tests.Marcin Kościelnicki2019-11-221-1/+0
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* Merge pull request #1449 from pepijndevos/gowinClifford Wolf2019-11-1912-0/+248
|\ | | | | Improvements for gowin support
| * Merge branch 'master' of https://github.com/YosysHQ/yosys into gowinPepijn de Vos2019-11-165-17/+34
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| * | fix fsm test with proper clock enable polarityPepijn de Vos2019-11-111-0/+11
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| * | fix wide lutsPepijn de Vos2019-11-061-7/+10
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| * | don't cound exact luts in big muxes; futile and fragilePepijn de Vos2019-10-301-3/+0
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