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| author | Eddie Hung <eddie@fpgeh.com> | 2019-11-22 15:13:18 -0800 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-11-22 15:13:18 -0800 |
| commit | 2a54fa41c40969841ba0574ba725caa436b0212f (patch) | |
| tree | 1dbf518fc73dbe253612bdb5e466c50b78bce44b /techlibs/ice40/abc9_model.v | |
| parent | 6b9f90de789b1d0daf93ac1d2b608b057e7ca272 (diff) | |
| parent | c03b6a3e9cab9fc05b2d5b256676f5ddc6c2d763 (diff) | |
| download | yosys-2a54fa41c40969841ba0574ba725caa436b0212f.tar.gz yosys-2a54fa41c40969841ba0574ba725caa436b0212f.tar.bz2 yosys-2a54fa41c40969841ba0574ba725caa436b0212f.zip | |
Merge branch 'master' of github.com:YosysHQ/yosys
Diffstat (limited to 'techlibs/ice40/abc9_model.v')
| -rw-r--r-- | techlibs/ice40/abc9_model.v | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/techlibs/ice40/abc9_model.v b/techlibs/ice40/abc9_model.v new file mode 100644 index 000000000..26cf6cc22 --- /dev/null +++ b/techlibs/ice40/abc9_model.v @@ -0,0 +1,27 @@ +(* abc9_box_id = 1, lib_whitebox *) +module \$__ICE40_CARRY_WRAPPER ( + (* abc9_carry *) + output CO, + output O, + input A, B, + (* abc9_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 |