yosys/techlibs/ecp5/abc_5g.box

# NB: Inputs/Outputs must be ordered alphabetically
#     (with exceptions for carry in/out)

# Box 1 : CCU2C (2xCARRY + 2xLUT4)
# Outputs: S0, S1, COUT
#   (NB: carry chain input/output must be last
#        input/output and bus has been moved
#        there overriding the otherwise
#        alphabetical ordering)
# name  ID   w/b   ins    outs
CCU2C   1      1   9      3

#A0   A1   B0   B1   C0    C1  D0   D1   CIN
379  -    379  -    275   -    141  -    257
630  379  630  379  526   275  392  141  273
516  516  516  516  412   412  278  278  43

# Box 2 : TRELLIS_DPR16X4_COMB (16x4 dist ram)
# Outputs: DO0, DO1, DO2, DO3
# name               ID  w/b   ins   outs
$__ABC_DPR16X4_COMB  2     0   8    4

#A0   A1   A2   A3   RAD0   RAD1   RAD2   RAD3
0     0    0    0    141    379    275    379
0     0    0    0    141    379    275    379
0     0    0    0    141    379    275    379
0     0    0    0    141    379    275    379

# Box 3 : PFUMX (MUX2)
# Outputs: Z
# name  ID   w/b   ins    outs
PFUMX   3    1     3      1

#ALUT  BLUT  C0
98     98    151

# Box 4 : L6MUX21 (MUX2)
# Outputs: Z
# name   ID   w/b   ins    outs
L6MUX21  4    1     3      1

#D0    D1    SD
140    141   148