);
"""
- generate
- if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") begin
- wire [29:0] iA;
- wire [17:0] iB;
- wire [47:0] iC;
- wire [24:0] iD;
+ wire [29:0] iA;
+ wire [17:0] iB;
+ wire [47:0] iC;
+ wire [24:0] iD;
- wire pA, pB, pC, pD, pAD, pM, pP;
- wire [47:0] oP, oPCOUT;
+ wire pA, pB, pC, pD, pAD, pM, pP;
+ wire [47:0] oP, mP;
+ wire [47:0] oPCOUT, mPCOUT;
+ generate
+ if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") begin
// Disconnect the A-input if MREG is enabled, since
// combinatorial path is broken
if (AREG == 0 && MREG == 0 && PREG == 0)
assign iA = A, pA = 1'bx;
else
- \$__ABC_DSP48E1_REG rA (.I(A), .O(iA), .Q(pA));
+ \$__ABC_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
if (BREG == 0 && MREG == 0 && PREG == 0)
assign iB = B, pB = 1'bx;
else
- \$__ABC_DSP48E1_REG rB (.I(B), .O(iB), .Q(pB));
+ \$__ABC_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
if (CREG == 0 && PREG == 0)
assign iC = C, pC = 1'bx;
else
- \$__ABC_DSP48E1_REG rC (.I(C), .O(iC), .Q(pC));
+ \$__ABC_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
if (DREG == 0)
assign iD = D;
else if (techmap_guard)
if (PREG == 0) begin
assign pP = 1'bx;
if (MREG == 1)
- \$__ABC_DSP48E1_REG rM (.Q(pM));
+ \$__ABC_REG rM (.Q(pM));
else
assign pM = 1'bx;
end
else begin
- \$__ABC_DSP48E1_REG rP (.Q(pP));
+ \$__ABC_REG rP (.Q(pP));
assign pM = 1'bx;
end
+ if (MREG == 0 && PREG == 0)
+ assign mP = oP, mPCOUT = oPCOUT;
+ else
+ assign mP = 1'bx, mPCOUT = 1'bx;
\$__ABC_DSP48E1_MULT_P_MUX muxP (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oP), .Pq(pP), .O(P)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
);
\$__ABC_DSP48E1_MULT_PCOUT_MUX muxPCOUT (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oPCOUT), .Pq(pP), .O(PCOUT)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
);
`DSP48E1_INST(\$__ABC_DSP48E1_MULT )
end
else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") begin
- wire [29:0] iA;
- wire [17:0] iB;
- wire [47:0] iC;
- wire [24:0] iD;
-
- wire pA, pB, pC, pD, pAD, pM, pP;
- wire [47:0] oP, oPCOUT;
-
// Disconnect the A-input if MREG is enabled, since
// combinatorial path is broken
if (AREG == 0 && ADREG == 0 && MREG == 0 && PREG == 0)
assign iA = A, pA = 1'bx;
else
- \$__ABC_DSP48E1_REG rA (.I(A), .O(iA), .Q(pA));
+ \$__ABC_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
if (BREG == 0 && MREG == 0 && PREG == 0)
assign iB = B, pB = 1'bx;
else
- \$__ABC_DSP48E1_REG rB (.I(B), .O(iB), .Q(pB));
+ \$__ABC_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
if (CREG == 0 && PREG == 0)
assign iC = C, pC = 1'bx;
else
- \$__ABC_DSP48E1_REG rC (.I(C), .O(iC), .Q(pC));
+ \$__ABC_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
if (DREG == 0 && ADREG == 0)
assign iD = D, pD = 1'bx;
else
- \$__ABC_DSP48E1_REG rD (.I(D), .O(iD), .Q(pD));
+ \$__ABC_REG #(.WIDTH(25)) rD (.I(D), .O(iD), .Q(pD));
if (PREG == 0) begin
if (MREG == 1)
- \$__ABC_DSP48E1_REG rM (.Q(pM));
+ \$__ABC_REG rM (.Q(pM));
else begin
assign pM = 1'bx;
if (ADREG == 1)
- \$__ABC_DSP48E1_REG rAD (.Q(pAD));
+ \$__ABC_REG rAD (.Q(pAD));
else
assign pAD = 1'bx;
end
end
else
- \$__ABC_DSP48E1_REG rP (.Q(pP));
+ \$__ABC_REG rP (.Q(pP));
+ if (MREG == 0 && PREG == 0)
+ assign mP = oP, mPCOUT = oPCOUT;
+ else
+ assign mP = 1'bx, mPCOUT = 1'bx;
\$__ABC_DSP48E1_MULT_DPORT_P_MUX muxP (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oP), .Pq(pP), .O(P)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
);
\$__ABC_DSP48E1_MULT_DPORT_PCOUT_MUX muxPCOUT (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oPCOUT), .Pq(pP), .O(PCOUT)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
);
`DSP48E1_INST(\$__ABC_DSP48E1_MULT_DPORT )
end
else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") begin
- wire [29:0] iA;
- wire [17:0] iB;
- wire [47:0] iC;
- wire [24:0] iD;
-
- wire pA, pB, pC, pD, pAD, pM, pP;
- wire [47:0] oP, oPCOUT;
-
// Disconnect the A-input if MREG is enabled, since
// combinatorial path is broken
if (AREG == 0 && PREG == 0)
assign iA = A, pA = 1'bx;
else
- \$__ABC_DSP48E1_REG rA (.I(A), .O(iA), .Q(pA));
+ \$__ABC_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
if (BREG == 0 && PREG == 0)
assign iB = B, pB = 1'bx;
else
- \$__ABC_DSP48E1_REG rB (.I(B), .O(iB), .Q(pB));
+ \$__ABC_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
if (CREG == 0 && PREG == 0)
assign iC = C, pC = 1'bx;
else
- \$__ABC_DSP48E1_REG rC (.I(C), .O(iC), .Q(pC));
+ \$__ABC_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
if (MREG == 1 && techmap_guard)
$error("Invalid DSP48E1 configuration: MREG enabled but USE_MULT == \"NONE\"");
assign pM = 1'bx;
$error("Invalid DSP48E1 configuration: ADREG enabled but USE_DPORT == \"FALSE\"");
assign pAD = 1'bx;
if (PREG == 1)
- \$__ABC_DSP48E1_REG rP (.Q(pP));
+ \$__ABC_REG rP (.Q(pP));
else
assign pP = 1'bx;
+ if (MREG == 0 && PREG == 0)
+ assign mP = oP, mPCOUT = oPCOUT;
+ else
+ assign mP = 1'bx, mPCOUT = 1'bx;
\$__ABC_DSP48E1_P_MUX muxP (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oP), .Pq(pP), .O(P)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
);
\$__ABC_DSP48E1_PCOUT_MUX muxPCOUT (
- .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .Mq(pM), .P(oPCOUT), .Pq(pP), .O(PCOUT)
+ .Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
);
`DSP48E1_INST(\$__ABC_DSP48E1 )
projects / yosys.git / blobdiff