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Sensitive to direct inst of $__ICE40_CARRY_WRAPPER; recreate SB_LUT4

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Eddie Hung 2019-12-09 12:45:22 -08:00
parent e05372778a
commit 500ed9b501
2 changed files with 12 additions and 8 deletions
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2
techlibs/ice40/arith_map.v
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@ -50,7 +50,7 @@ module _80_ice40_alu (A, B, CI, BI, X, Y, CO);
// A[2]: 1111 0000 1111 0000
// A[3]: 1111 1111 0000 0000
.LUT(16'b 0110_1001_1001_0110)
) fadd (
) carry (
.A(AA[i]),
.B(BB[i]),
.CI(C[i]),