yosys/techlibs/quicklogic/abc9_map.v

27 lines
771 B
Verilog

// This file exists to map purely-synchronous flops to ABC9 flops, while
// mapping flops with asynchronous-set/clear as boxes, this is because ABC9
// doesn't support asynchronous-set/clear flops in sequential synthesis.
module dffepc (
output Q,
input D,
input CLK,
input EN,
input CLR,
input PRE
);
parameter INIT = 1'b0;
parameter _TECHMAP_CONSTMSK_CLR_ = 1'b0;
parameter _TECHMAP_CONSTMSK_PRE_ = 1'b0;
parameter _TECHMAP_CONSTVAL_CLR_ = 1'b0;
parameter _TECHMAP_CONSTVAL_PRE_ = 1'b0;
if (_TECHMAP_CONSTMSK_CLR_ != 1'b0 && _TECHMAP_CONSTMSK_PRE_ != 1'b0 && _TECHMAP_CONSTVAL_CLR_ == 1'b0 && _TECHMAP_CONSTVAL_PRE_ == 1'b0)
$__PP3_DFFEPC_SYNCONLY _TECHMAP_REPLACE_ (.Q(Q), .D(D), .CLK(CLK), .EN(EN));
else
wire _TECHMAP_FAIL_ = 1;
endmodule