diff options
Diffstat (limited to 'CHANGELOG')
| -rw-r--r-- | CHANGELOG | 43 |
1 files changed, 39 insertions, 4 deletions
@@ -3,6 +3,32 @@ List of major changes and improvements between releases ======================================================= +Yosys 0.9 .. Yosys 0.9-dev +-------------------------- + + * Various + - Added "write_xaiger" backend + - Added "abc9" pass for timing-aware techmapping (experimental, FPGA only, no FFs) + - Added "synth_xilinx -abc9" (experimental) + - Added "synth_ice40 -abc9" (experimental) + - Added "synth -abc9" (experimental) + - Added "script -scriptwire + - "synth_xilinx" to now infer wide multiplexers (-widemux <min> to enable) + - Renamed labels/options in synth_ice40 (e.g. dram -> map_lutram; -nodram -> -nolutram) + - Renamed labels/options in synth_ecp5 (e.g. dram -> map_lutram; -nodram -> -nolutram) + - Renamed labels in synth_intel (e.g. bram -> map_bram) + - Renamed labels/options in synth_xilinx (e.g. dram -> map_lutram; -nodram -> -nolutram) + - Added automatic gzip decompression for frontends + - Added $_NMUX_ cell type + - Added automatic gzip compression (based on filename extension) for backends + - Improve attribute and parameter encoding in JSON to avoid ambiguities between + bit vectors and strings containing [01xz]* + - Improvements in pmgen: subpattern and recursive matches + - Added "opt_share" pass, run as part of "opt -full" + - Added "ice40_wrapcarry" to encapsulate SB_LUT+SB_CARRY pairs for techmapping + - Removed "ice40_unlut" + - Improvements in pmgen: slices, choices, define, generate + Yosys 0.8 .. Yosys 0.8-dev -------------------------- @@ -16,9 +42,18 @@ Yosys 0.8 .. Yosys 0.8-dev - Added "gate2lut.v" techmap rule - Added "rename -src" - Added "equiv_opt" pass + - Added "shregmap -tech xilinx" - Added "read_aiger" frontend - - Extended "muxcover -mux{4,8,16}=<cost>" - - "synth_xilinx" to now infer hard shift registers, using new "shregmap -tech xilinx" + - Added "muxcover -mux{4,8,16}=<cost>" + - Added "muxcover -dmux=<cost>" + - Added "muxcover -nopartial" + - Added "muxpack" pass + - Added "pmux2shiftx -norange" + - Added "synth_xilinx -nocarry" + - Added "synth_xilinx -nowidelut" + - Added "synth_ecp5 -nowidelut" + - "synth_xilinx" to now infer hard shift registers (-nosrl to disable) + - Fixed sign extension of unsized constants with 'bx and 'bz MSB Yosys 0.7 .. Yosys 0.8 @@ -32,7 +67,7 @@ Yosys 0.7 .. Yosys 0.8 - Added "write_verilog -decimal" - Added "scc -set_attr" - Added "verilog_defines" command - - Remeber defines from one read_verilog to next + - Remember defines from one read_verilog to next - Added support for hierarchical defparam - Added FIRRTL back-end - Improved ABC default scripts @@ -41,7 +76,7 @@ Yosys 0.7 .. Yosys 0.8 - Added Verilog $rtoi and $itor support - Added "check -initdrv" - Added "read_blif -wideports" - - Added support for systemVerilog "++" and "--" operators + - Added support for SystemVerilog "++" and "--" operators - Added support for SystemVerilog unique, unique0, and priority case - Added "write_edif" options for edif "flavors" - Added support for resetall compiler directive |