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| author | Eddie Hung <eddie@fpgeh.com> | 2019-10-08 10:53:38 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-08 10:53:38 -0700 |
| commit | 9fd2ddb14c0f7c40f6ed01a5db61cb6b327d877f (patch) | |
| tree | 526027efe405ddd8741558d150a341478d269d1f /techlibs/ice40/abc9_model.v | |
| parent | 472b5d33a624c2e414ce733c1cda0b97bce24094 (diff) | |
| parent | a5ac33f230b5dd20273f6636e5b573ef0478b8f9 (diff) | |
| download | yosys-9fd2ddb14c0f7c40f6ed01a5db61cb6b327d877f.tar.gz yosys-9fd2ddb14c0f7c40f6ed01a5db61cb6b327d877f.tar.bz2 yosys-9fd2ddb14c0f7c40f6ed01a5db61cb6b327d877f.zip | |
Merge pull request #1437 from YosysHQ/eddie/abc_to_abc9
Rename abc_* names/attributes to more precisely be abc9_*
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 |