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Add $__XILINX_MUXF78 to preserve entire box

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Eddie Hung 2019-06-21 15:47:42 -07:00
parent cf4ac332e1
commit 9abde12110
3 changed files with 28 additions and 7 deletions
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11
techlibs/xilinx/abc_xc7.box
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@ -1,16 +1,21 @@
# Max delays from https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLL_L.sdf
# F7BMUX slower than F7AMUX
# Average across F7[AB]MUX
# Inputs: I0 I1 S0
# Outputs: O
F7BMUX 1 1 3 1
217 223 296
F7MUX 1 1 3 1
204 208 286
# Inputs: I0 I1 S0
# Outputs: O
MUXF8 2 1 3 1
104 94 273
# Inputs: I0 I1 I2 I3 S0 S1
# Outputs: O
MUXF78 10 1 6 1
190 193 217 223 296 273
# CARRY4 + CARRY4_[ABCD]X
# Inputs: S0 S1 S2 S3 CYINIT DI0 DI1 DI2 DI3 CI
# Outputs: O0 O1 O2 O3 CO0 CO1 CO2 CO3