yosys/techlibs/ice40/cells.box

# From https://github.com/cliffordwolf/icestorm/blob/81c33a3/icefuzz/timings_hx8k.txt

# NB: Inputs/Outputs must be ordered alphabetically

# Inputs: CI I1 I2
# Outputs: CO O
ICE40_CARRY_LUT 1 1 3 2
126 259 231
316 400 379
Add SB_LUT4 to box library 2019-04-17 02:34:11 +02:00			`# From https://github.com/cliffordwolf/icestorm/blob/81c33a3/icefuzz/timings_hx8k.txt`

Add ice40 box files 2019-04-17 01:39:30 +02:00			`# NB: Inputs/Outputs must be ordered alphabetically`

Try using an ICE40_CARRY_LUT primitive to avoid ABC issues 2019-04-17 20:10:04 +02:00			`# Inputs: CI I1 I2`
			`# Outputs: CO O`
			`ICE40_CARRY_LUT 1 1 3 2`
Add ice40 box files 2019-04-17 01:39:30 +02:00			`126 259 231`
Try using an ICE40_CARRY_LUT primitive to avoid ABC issues 2019-04-17 20:10:04 +02:00			`316 400 379`