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| author | Eddie Hung <eddie@fpgeh.com> | 2019-12-06 16:23:09 -0800 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-12-06 16:23:09 -0800 |
| commit | c767525441ebc6a21b29bf0c1208049cd38adc8e (patch) | |
| tree | a07dcde07318bd693d5b7850252e326f070ffc3c /techlibs/xilinx/abc9_map.v | |
| parent | 69d8c1386a239372a2ab8910bf12d5d70701b7fa (diff) | |
| download | yosys-c767525441ebc6a21b29bf0c1208049cd38adc8e.tar.gz yosys-c767525441ebc6a21b29bf0c1208049cd38adc8e.tar.bz2 yosys-c767525441ebc6a21b29bf0c1208049cd38adc8e.zip | |
Remove creation of $abc9_control_wire
Diffstat (limited to 'techlibs/xilinx/abc9_map.v')
| -rw-r--r-- | techlibs/xilinx/abc9_map.v | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/techlibs/xilinx/abc9_map.v b/techlibs/xilinx/abc9_map.v index d5d5a89f6..49000ea25 100644 --- a/techlibs/xilinx/abc9_map.v +++ b/techlibs/xilinx/abc9_map.v @@ -65,15 +65,14 @@ // (b) an optional $__ABC9_ASYNC_ cell in front of $__ABC_FF_'s output to // capture asynchronous behaviour // (c) a special _TECHMAP_REPLACE_.$abc9_clock wire to capture its clock -// domain (used when partitioning the module so that `abc9' only +// domain and polarity (used when partitioning the module so that `abc9' only // performs sequential synthesis (with reachability analysis) correctly on -// one domain at a time) and used to infert the delay target -// (d) a special _TECHMAP_REPLACE_.$abc9_control wire that captures the control -// domain (which, combined with this cell type, encodes to `abc9' which -// flops may be merged together) -// (e) a special _TECHMAP_REPLACE_.$abc9_init wire to encode the flop's initial +// one domain at a time) and also used to infer the optional delay target +// from the (* abc9_clock_period = %d *) attribute attached to any wire +// within +// (d) a special _TECHMAP_REPLACE_.$abc9_init wire to encode the flop's initial // state -// (f) a special _TECHMAP_REPLACE_.$abc9_currQ wire that will be used for feedback +// (e) a special _TECHMAP_REPLACE_.$abc9_currQ wire that will be used for feedback // into the (combinatorial) FD* cell to facilitate clock-enable behaviour // // In order to perform sequential synthesis, `abc9' also requires that @@ -112,7 +111,6 @@ module FDRE (output Q, input C, CE, D, R); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, IS_C_INVERTED}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b0 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = QQ; endmodule @@ -140,7 +138,6 @@ module FDRE_1 (output Q, input C, CE, D, R); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, 1'b1 /* IS_C_INVERTED */}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b1 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = QQ; endmodule @@ -190,7 +187,6 @@ module FDCE (output Q, input C, CE, D, CLR); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, IS_C_INVERTED}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b1 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = $abc9_currQ; endmodule @@ -228,7 +224,6 @@ module FDCE_1 (output Q, input C, CE, D, CLR); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, 1'b1 /* IS_C_INVERTED */}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b1 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = $abc9_currQ; endmodule @@ -276,7 +271,6 @@ module FDPE (output Q, input C, CE, D, PRE); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, IS_C_INVERTED}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b1 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = $abc9_currQ; endmodule @@ -314,8 +308,6 @@ module FDPE_1 (output Q, input C, CE, D, PRE); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, 1'b1 /* IS_C_INVERTED */}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b1 /* async */}; ->>>>>>> d3b23690... abc9 to use mergeability class to differentiate sync/async wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = $abc9_currQ; endmodule @@ -352,7 +344,6 @@ module FDSE (output Q, input C, CE, D, S); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, IS_C_INVERTED}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b0 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = QQ; endmodule @@ -379,7 +370,6 @@ module FDSE_1 (output Q, input C, CE, D, S); // Special signals wire [1:0] _TECHMAP_REPLACE_.$abc9_clock = {C, 1'b1 /* IS_C_INVERTED */}; - wire [0:0] _TECHMAP_REPLACE_.$abc9_control = {1'b0 /* async */}; wire [0:0] _TECHMAP_REPLACE_.$abc9_init = 1'b0; wire [0:0] _TECHMAP_REPLACE_.$abc9_currQ = QQ; endmodule |