Make SB_LUT4 a blackbox

diff --git a/techlibs/ice40/abc_hx.box b/techlibs/ice40/abc_hx.box
index c31f7bf3901bba3b43f5ceca6571a4ff8302d787..5a18a8423b17f8055912efc56ce44087b60fc7a6 100644 (file)
--- a/techlibs/ice40/abc_hx.box
+++ b/techlibs/ice40/abc_hx.box
@@ -9,5 +9,5 @@ SB_CARRY 1 1 3 1
 
 # Inputs: I0 I1 I2 I3
 # Outputs: O
-SB_LUT4 2 1 4 1
+SB_LUT4 2 0 4 1
 449 400 379 316

diff --git a/techlibs/ice40/abc_lp.box b/techlibs/ice40/abc_lp.box
index 7eb8e86e04f5ff6580696f824c8d06cf295de93d..87fe815859479b0203663d1a96c376c724657241 100644 (file)
--- a/techlibs/ice40/abc_lp.box
+++ b/techlibs/ice40/abc_lp.box
@@ -9,5 +9,5 @@ SB_CARRY 1 1 3 1
 
 # Inputs: I0 I1 I2 I3
 # Outputs: O
-SB_LUT4 2 1 4 1
+SB_LUT4 2 0 4 1
 465 558 589 661

diff --git a/techlibs/ice40/abc_u.box b/techlibs/ice40/abc_u.box
index 94df1df8f7a1d488e86a7137a4edbe182d85a56f..5035a41694c63f54744d74175e1b43345072cc02 100644 (file)
--- a/techlibs/ice40/abc_u.box
+++ b/techlibs/ice40/abc_u.box
@@ -9,5 +9,5 @@ SB_CARRY 1 1 3 1
 
 # Inputs: I0 I1 I2 I3
 # Outputs: O
-SB_LUT4 2 1 4 1
+SB_LUT4 2 0 4 1
 1285 1231 1205 874