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Diffstat (limited to 'techlibs/anlogic/arith_map.v')
| -rw-r--r-- | techlibs/anlogic/arith_map.v | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/techlibs/anlogic/arith_map.v b/techlibs/anlogic/arith_map.v index 1186543da..23e190bcb 100644 --- a/techlibs/anlogic/arith_map.v +++ b/techlibs/anlogic/arith_map.v @@ -26,24 +26,33 @@ module _80_anlogic_alu (A, B, CI, BI, X, Y, CO); parameter B_WIDTH = 1; parameter Y_WIDTH = 1; + (* force_downto *) input [A_WIDTH-1:0] A; + (* force_downto *) input [B_WIDTH-1:0] B; + (* force_downto *) output [Y_WIDTH-1:0] X, Y; input CI, BI; + (* force_downto *) output [Y_WIDTH-1:0] CO; wire CIx; + (* force_downto *) wire [Y_WIDTH-1:0] COx; wire _TECHMAP_FAIL_ = Y_WIDTH <= 2; + (* force_downto *) wire [Y_WIDTH-1:0] A_buf, B_buf; \$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf)); \$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf)); + (* force_downto *) wire [Y_WIDTH-1:0] AA = A_buf; + (* force_downto *) wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf; + (* force_downto *) wire [Y_WIDTH-1:0] C = { COx, CIx }; wire dummy; |