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| author | Eddie Hung <eddie@fpgeh.com> | 2019-07-12 00:50:42 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-07-12 00:50:42 -0700 |
| commit | fc3d74616f284eaccdc7d105cd77572953602d7f (patch) | |
| tree | 816f8de3ecef7ae2bc7d8d0317ec2fb6344a1d44 /techlibs | |
| parent | 19c1c3cfa351eb818065054ca6358006f38acb9c (diff) | |
| download | yosys-fc3d74616f284eaccdc7d105cd77572953602d7f.tar.gz yosys-fc3d74616f284eaccdc7d105cd77572953602d7f.tar.bz2 yosys-fc3d74616f284eaccdc7d105cd77572953602d7f.zip | |
Combine SB_CARRY+SB_LUT into one $__ICE40_CARRY_LUT4 box
Diffstat (limited to 'techlibs')
| -rw-r--r-- | techlibs/ice40/abc_hx.box | 12 | ||||
| -rw-r--r-- | techlibs/ice40/abc_lp.box | 12 | ||||
| -rw-r--r-- | techlibs/ice40/abc_u.box | 14 |
3 files changed, 13 insertions, 25 deletions
diff --git a/techlibs/ice40/abc_hx.box b/techlibs/ice40/abc_hx.box index f8e12b527..4b55297dd 100644 --- a/techlibs/ice40/abc_hx.box +++ b/techlibs/ice40/abc_hx.box @@ -3,15 +3,11 @@ # NB: Inputs/Outputs must be ordered alphabetically # (with exceptions for carry in/out) -# Inputs: I0 I1 CI -# Outputs: CO +# Inputs: A B CI +# Outputs: O CO # (NB: carry chain input/output must be last # input/output and have been moved there # overriding the alphabetical ordering) -SB_CARRY 1 1 3 1 +$__ICE40_CARRY_LUT4 1 1 3 2 +400 379 316 259 231 126 - -# Inputs: I0 I1 I2 I3 -# Outputs: O -SB_LUT4 2 1 4 1 -449 400 379 316 diff --git a/techlibs/ice40/abc_lp.box b/techlibs/ice40/abc_lp.box index fbe4c56e6..b85346370 100644 --- a/techlibs/ice40/abc_lp.box +++ b/techlibs/ice40/abc_lp.box @@ -3,15 +3,11 @@ # NB: Inputs/Outputs must be ordered alphabetically # (with exceptions for carry in/out) -# Inputs: CI I0 I1 -# Outputs: CO +# Inputs: A B CI +# Outputs: O CO # (NB: carry chain input/output must be last # input/output and have been moved there # overriding the alphabetical ordering) -SB_CARRY 1 1 3 1 +$__ICE40_CARRY_LUT4 1 1 3 2 +589 558 465 675 609 186 - -# Inputs: I0 I1 I2 I3 -# Outputs: O -SB_LUT4 2 1 4 1 -661 589 558 465 diff --git a/techlibs/ice40/abc_u.box b/techlibs/ice40/abc_u.box index f44deabc4..3a71addef 100644 --- a/techlibs/ice40/abc_u.box +++ b/techlibs/ice40/abc_u.box @@ -3,15 +3,11 @@ # NB: Inputs/Outputs must be ordered alphabetically # (with exceptions for carry in/out) -# Inputs: I0 I1 CI -# Outputs: CO +# Inputs: A B CI +# Outputs: O CO # (NB: carry chain input/output must be last # input/output and have been moved there # overriding the alphabetical ordering) -SB_CARRY 1 1 3 1 -675 609 278 - -# Inputs: I0 I1 I2 I3 -# Outputs: O -SB_LUT4 2 1 4 1 -1285 1231 1205 874 +$__ICE40_CARRY_LUT4 1 1 3 2 +1231 1205 875 +675 609 278 |