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authorEddie Hung <eddie@fpgeh.com>2019-08-20 15:09:38 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-20 15:09:38 -0700
commite273ed52758599cb156cf3c309905da70826fe2d (patch)
tree0671617ef42c416128cfb6a77eb987c6583f89ec /techlibs/xilinx/abc_map.v
parent808f07630fc79bf5f6e44986985dd07f83bb9d46 (diff)
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Wrap SRL{16,32} too
Diffstat (limited to 'techlibs/xilinx/abc_map.v')
-rw-r--r--techlibs/xilinx/abc_map.v36
1 files changed, 36 insertions, 0 deletions
diff --git a/techlibs/xilinx/abc_map.v b/techlibs/xilinx/abc_map.v
index 0d69e8c08..56b4fe7f9 100644
--- a/techlibs/xilinx/abc_map.v
+++ b/techlibs/xilinx/abc_map.v
@@ -185,5 +185,41 @@ module \$__ABC_RAM128X1D (
);
\$__ABC_LUTMUX7 dpo (.A(\$DPO ), .S(A), .Y(DPO));
\$__ABC_LUTMUX7 spo (.A(\$SPO ), .S(A), .Y(SPO));
+endmodule
+module SRL16E (
+ output Q,
+ input A0, A1, A2, A3, CE, CLK, D
+);
+ parameter [15:0] INIT = 16'h0000;
+ parameter [0:0] IS_CLK_INVERTED = 1'b0;
+ wire \$Q ;
+ \$__ABC_SRL16E #(
+ .INIT(INIT), .IS_CLK_INVERTED(IS_CLK_INVERTED)
+ ) _TECHMAP_REPLACE_ (
+ .Q(\$Q ),
+ .A0(A0), .A1(A1), .A2(A2), .A3(A3), .CE(CE), .CLK(CLK), .D(D)
+ );
+ // TODO: Check if SRL uses fast inputs or slow inputs
+ \$__ABC_LUTMUX6 q (.A(\$Q ), .S({A0, A1, A2, A3, 1'b0, 1'b0}), .Y(Q));
+endmodule
+
+module SRLC32E (
+ // Max delay from: https://github.com/SymbiFlow/prjxray-db/blob/34ea6eb08a63d21ec16264ad37a0a7b142ff6031/artix7/timings/CLBLM_R.sdf#L904-L905
+ (* abc_arrival=1472 *) output Q,
+ (* abc_arrival=1114 *) output Q31,
+ input [4:0] A,
+ input CE, CLK, D
+);
+ parameter [31:0] INIT = 32'h00000000;
+ parameter [0:0] IS_CLK_INVERTED = 1'b0;
+ wire \$Q ;
+ \$__ABC_SRLC32E #(
+ .INIT(INIT), .IS_CLK_INVERTED(IS_CLK_INVERTED)
+ ) _TECHMAP_REPLACE_ (
+ .Q(\$Q ), .Q31(Q31),
+ .A(A), .CE(CE), .CLK(CLK), .D(D)
+ );
+ // TODO: Check if SRL uses fast inputs or slow inputs
+ \$__ABC_LUTMUX6 q (.A(\$Q ), .S({A, 1'b0}), .Y(Q));
endmodule