From 9398921af1d21b47aa291d240a1f274418adcaf2 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Thu, 27 Jun 2019 16:07:14 -0700 Subject: Refactor for one "abc_carry" attribute on module --- techlibs/ice40/cells_sim.v | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'techlibs/ice40') diff --git a/techlibs/ice40/cells_sim.v b/techlibs/ice40/cells_sim.v index 317ae2c1f..c7e4101e1 100644 --- a/techlibs/ice40/cells_sim.v +++ b/techlibs/ice40/cells_sim.v @@ -136,8 +136,8 @@ module SB_LUT4 (output O, input I0, I1, I2, I3); assign O = I0 ? s1[1] : s1[0]; endmodule -(* abc_box_id = 1, abc_carry, lib_whitebox *) -module SB_CARRY ((* abc_carry_out *) output CO, input I0, I1, (* abc_carry_in *) input CI); +(* abc_box_id = 1, abc_carry="CI,CO", lib_whitebox *) +module SB_CARRY (output CO, input I0, I1, CI); assign CO = (I0 && I1) || ((I0 || I1) && CI); endmodule -- cgit v1.2.3