diff options
Diffstat (limited to 'techlibs/ice40/cells_sim.v')
| -rw-r--r-- | techlibs/ice40/cells_sim.v | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/techlibs/ice40/cells_sim.v b/techlibs/ice40/cells_sim.v index 8e5e0358e..16a893226 100644 --- a/techlibs/ice40/cells_sim.v +++ b/techlibs/ice40/cells_sim.v @@ -145,34 +145,6 @@ module SB_CARRY (output CO, input I0, I1, CI); assign CO = (I0 && I1) || ((I0 || I1) && CI); endmodule -(* abc_box_id = 1, lib_whitebox *) -module \$__ICE40_CARRY_WRAPPER ( - (* abc_carry *) - output CO, - output O, - input A, B, - (* abc_carry *) - input CI, - input I0, I3 -); - parameter LUT = 0; - SB_CARRY carry ( - .I0(A), - .I1(B), - .CI(CI), - .CO(CO) - ); - SB_LUT4 #( - .LUT_INIT(LUT) - ) adder ( - .I0(I0), - .I1(A), - .I2(B), - .I3(I3), - .O(O) - ); -endmodule - // Max delay from: https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_hx1k.txt#L90 // https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_lp1k.txt#L90 // https://github.com/cliffordwolf/icestorm/blob/95949315364f8d9b0c693386aefadf44b28e2cf6/icefuzz/timings_up5k.txt#L102 |