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| author | Eddie Hung <eddie@fpgeh.com> | 2019-04-17 11:10:20 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-04-17 11:10:20 -0700 |
| commit | c1ebe51a75ef8ce47d6b1406fa87b15bd8f97760 (patch) | |
| tree | 1be2238ddc2e0ae0991df823e807a5baa820ab49 /techlibs/ice40/cells.box | |
| parent | a7632ab3326c5247b8152a53808413b259c13253 (diff) | |
| download | yosys-c1ebe51a75ef8ce47d6b1406fa87b15bd8f97760.tar.gz yosys-c1ebe51a75ef8ce47d6b1406fa87b15bd8f97760.tar.bz2 yosys-c1ebe51a75ef8ce47d6b1406fa87b15bd8f97760.zip | |
Revert "Try using an ICE40_CARRY_LUT primitive to avoid ABC issues"
This reverts commit a7632ab3326c5247b8152a53808413b259c13253.
Diffstat (limited to 'techlibs/ice40/cells.box')
| -rw-r--r-- | techlibs/ice40/cells.box | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/techlibs/ice40/cells.box b/techlibs/ice40/cells.box index 34d1f372e..d775efa78 100644 --- a/techlibs/ice40/cells.box +++ b/techlibs/ice40/cells.box @@ -2,8 +2,12 @@ # NB: Inputs/Outputs must be ordered alphabetically -# Inputs: CI I1 I2 -# Outputs: CO O -ICE40_CARRY_LUT 1 1 3 2 +# Inputs: CI I0 I1 +# Outputs: CO +SB_CARRY 1 1 3 1 126 259 231 -316 400 379 + +# Inputs: I0 I1 I2 I3 +# Outputs: O +SB_LUT4 2 1 4 1 +316 379 400 449 |