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https://github.com/YosysHQ/yosys
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Rework abc9's DSP48E1 model
This commit is contained in:
Eddie Hung
parent
9e5ff30d05
commit
db04161eca
5 changed files with 508 additions and 1658 deletions
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@ -282,244 +282,113 @@ module DSP48E1 (
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parameter [4:0] IS_INMODE_INVERTED = 5'b0;
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parameter [6:0] IS_OPMODE_INVERTED = 7'b0;
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parameter _TECHMAP_CELLTYPE_ = "";
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localparam techmap_guard = (_TECHMAP_CELLTYPE_ != "");
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wire [47:0] $P, $PCOUT;
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`define DSP48E1_INST(__CELL__) """
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__CELL__ #(
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.ACASCREG(ACASCREG),
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.ADREG(ADREG),
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.ALUMODEREG(ALUMODEREG),
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.AREG(AREG),
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.AUTORESET_PATDET(AUTORESET_PATDET),
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.A_INPUT(A_INPUT),
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.BCASCREG(BCASCREG),
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.BREG(BREG),
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.B_INPUT(B_INPUT),
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.CARRYINREG(CARRYINREG),
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.CARRYINSELREG(CARRYINSELREG),
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.CREG(CREG),
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.DREG(DREG),
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.INMODEREG(INMODEREG),
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.MREG(MREG),
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.OPMODEREG(OPMODEREG),
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.PREG(PREG),
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.SEL_MASK(SEL_MASK),
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.SEL_PATTERN(SEL_PATTERN),
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.USE_DPORT(USE_DPORT),
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.USE_MULT(USE_MULT),
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.USE_PATTERN_DETECT(USE_PATTERN_DETECT),
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.USE_SIMD(USE_SIMD),
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.MASK(MASK),
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.PATTERN(PATTERN),
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.IS_ALUMODE_INVERTED(IS_ALUMODE_INVERTED),
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.IS_CARRYIN_INVERTED(IS_CARRYIN_INVERTED),
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.IS_CLK_INVERTED(IS_CLK_INVERTED),
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.IS_INMODE_INVERTED(IS_INMODE_INVERTED),
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.IS_OPMODE_INVERTED(IS_OPMODE_INVERTED)
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) _TECHMAP_REPLACE_ (
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.ACOUT(ACOUT),
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.BCOUT(BCOUT),
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.CARRYCASCOUT(CARRYCASCOUT),
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.CARRYOUT(CARRYOUT),
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.MULTSIGNOUT(MULTSIGNOUT),
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.OVERFLOW(OVERFLOW),
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.P(oP),
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.PATTERNBDETECT(PATTERNBDETECT),
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.PATTERNDETECT(PATTERNDETECT),
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.PCOUT(oPCOUT),
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.UNDERFLOW(UNDERFLOW),
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.A(iA),
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.ACIN(ACIN),
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.ALUMODE(ALUMODE),
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.B(iB),
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.BCIN(BCIN),
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.C(iC),
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.CARRYCASCIN(CARRYCASCIN),
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.CARRYIN(CARRYIN),
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.CARRYINSEL(CARRYINSEL),
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.CEA1(CEA1),
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.CEA2(CEA2),
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.CEAD(CEAD),
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.CEALUMODE(CEALUMODE),
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.CEB1(CEB1),
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.CEB2(CEB2),
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.CEC(CEC),
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.CECARRYIN(CECARRYIN),
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.CECTRL(CECTRL),
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.CED(CED),
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.CEINMODE(CEINMODE),
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.CEM(CEM),
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.CEP(CEP),
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.CLK(CLK),
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.D(iD),
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.INMODE(INMODE),
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.MULTSIGNIN(MULTSIGNIN),
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.OPMODE(OPMODE),
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.PCIN(PCIN),
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.RSTA(RSTA),
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.RSTALLCARRYIN(RSTALLCARRYIN),
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.RSTALUMODE(RSTALUMODE),
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.RSTB(RSTB),
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.RSTC(RSTC),
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.RSTCTRL(RSTCTRL),
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.RSTD(RSTD),
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.RSTINMODE(RSTINMODE),
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.RSTM(RSTM),
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.RSTP(RSTP)
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);
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"""
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wire [29:0] iA;
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wire [17:0] iB;
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wire [47:0] iC;
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wire [24:0] iD;
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wire pA, pB, pC, pD, pAD, pM, pP;
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wire [47:0] oP, mP;
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wire [47:0] oPCOUT, mPCOUT;
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DSP48E1 #(
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.ACASCREG(ACASCREG),
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.ADREG(ADREG),
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.ALUMODEREG(ALUMODEREG),
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.AREG(AREG),
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.AUTORESET_PATDET(AUTORESET_PATDET),
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.A_INPUT(A_INPUT),
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.BCASCREG(BCASCREG),
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.BREG(BREG),
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.B_INPUT(B_INPUT),
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.CARRYINREG(CARRYINREG),
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.CARRYINSELREG(CARRYINSELREG),
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.CREG(CREG),
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.DREG(DREG),
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.INMODEREG(INMODEREG),
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.MREG(MREG),
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.OPMODEREG(OPMODEREG),
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.PREG(PREG),
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.SEL_MASK(SEL_MASK),
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.SEL_PATTERN(SEL_PATTERN),
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.USE_DPORT(USE_DPORT),
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.USE_MULT(USE_MULT),
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.USE_PATTERN_DETECT(USE_PATTERN_DETECT),
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.USE_SIMD(USE_SIMD),
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.MASK(MASK),
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.PATTERN(PATTERN),
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.IS_ALUMODE_INVERTED(IS_ALUMODE_INVERTED),
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.IS_CARRYIN_INVERTED(IS_CARRYIN_INVERTED),
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.IS_CLK_INVERTED(IS_CLK_INVERTED),
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.IS_INMODE_INVERTED(IS_INMODE_INVERTED),
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.IS_OPMODE_INVERTED(IS_OPMODE_INVERTED)
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) _TECHMAP_REPLACE_ (
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.ACOUT(ACOUT),
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.BCOUT(BCOUT),
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.CARRYCASCOUT(CARRYCASCOUT),
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.CARRYOUT(CARRYOUT),
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.MULTSIGNOUT(MULTSIGNOUT),
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.OVERFLOW(OVERFLOW),
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.P($P),
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.PATTERNBDETECT(PATTERNBDETECT),
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.PATTERNDETECT(PATTERNDETECT),
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.PCOUT($PCOUT),
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.UNDERFLOW(UNDERFLOW),
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.A(A),
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.ACIN(ACIN),
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.ALUMODE(ALUMODE),
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.B(B),
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.BCIN(BCIN),
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.C(C),
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.CARRYCASCIN(CARRYCASCIN),
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.CARRYIN(CARRYIN),
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.CARRYINSEL(CARRYINSEL),
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.CEA1(CEA1),
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.CEA2(CEA2),
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.CEAD(CEAD),
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.CEALUMODE(CEALUMODE),
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.CEB1(CEB1),
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.CEB2(CEB2),
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.CEC(CEC),
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.CECARRYIN(CECARRYIN),
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.CECTRL(CECTRL),
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.CED(CED),
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.CEINMODE(CEINMODE),
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.CEM(CEM),
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.CEP(CEP),
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.CLK(CLK),
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.D(D),
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.INMODE(INMODE),
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.MULTSIGNIN(MULTSIGNIN),
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.OPMODE(OPMODE),
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.PCIN(PCIN),
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.RSTA(RSTA),
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.RSTALLCARRYIN(RSTALLCARRYIN),
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.RSTALUMODE(RSTALUMODE),
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.RSTB(RSTB),
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.RSTC(RSTC),
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.RSTCTRL(RSTCTRL),
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.RSTD(RSTD),
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.RSTINMODE(RSTINMODE),
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.RSTM(RSTM),
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.RSTP(RSTP)
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);
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generate
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE") begin
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// Disconnect the A-input if MREG is enabled, since
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// combinatorial path is broken
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if (AREG == 0 && MREG == 0 && PREG == 0)
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assign iA = A, pA = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
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if (BREG == 0 && MREG == 0 && PREG == 0)
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assign iB = B, pB = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
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if (CREG == 0 && PREG == 0)
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assign iC = C, pC = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
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if (DREG == 0)
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assign iD = D;
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else if (techmap_guard)
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$error("Invalid DSP48E1 configuration: DREG enabled but USE_DPORT == \"FALSE\"");
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assign pD = 1'bx;
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if (ADREG == 1 && techmap_guard)
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$error("Invalid DSP48E1 configuration: ADREG enabled but USE_DPORT == \"FALSE\"");
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assign pAD = 1'bx;
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if (PREG == 0) begin
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if (MREG == 1)
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\$__ABC9_REG rM (.Q(pM));
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else
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assign pM = 1'bx;
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assign pP = 1'bx;
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end else begin
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assign pM = 1'bx;
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\$__ABC9_REG rP (.Q(pP));
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wire [29:0] $A;
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wire [17:0] $B;
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wire [47:0] $C;
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wire [24:0] $D;
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if (PREG != 0)
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assign P = $P, PCOUT = $PCOUT;
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else begin
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if (AREG == 0) assign $A = A;
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if (BREG == 0) assign $B = B;
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if (CREG == 0) assign $C = C;
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if (DREG == 0) assign $D = D;
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if (USE_MULT == "MULTIPLY" && USE_DPORT == "FALSE")
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$__ABC9_DSP48E1_MULT dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN(PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE")
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$__ABC9_DSP48E1_MULT_DPORT dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN(PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE")
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$__ABC9_DSP48E1 dsp_comb(.$A($A), .$B($B), .$C($C), .$D($D), .$P($P), .$PCIN(PCIN), .$PCOUT($PCOUT), .P(P), .PCOUT(PCOUT));
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else
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$error("Invalid DSP48E1 configuration");
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end
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if (MREG == 0 && PREG == 0)
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assign mP = oP, mPCOUT = oPCOUT;
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else
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assign mP = 1'bx, mPCOUT = 1'bx;
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\$__ABC9_DSP48E1_MULT_P_MUX muxP (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
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);
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\$__ABC9_DSP48E1_MULT_PCOUT_MUX muxPCOUT (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
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);
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`DSP48E1_INST(\$__ABC9_DSP48E1_MULT )
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end
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else if (USE_MULT == "MULTIPLY" && USE_DPORT == "TRUE") begin
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// Disconnect the A-input if MREG is enabled, since
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// combinatorial path is broken
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if (AREG == 0 && ADREG == 0 && MREG == 0 && PREG == 0)
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assign iA = A, pA = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
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if (BREG == 0 && MREG == 0 && PREG == 0)
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assign iB = B, pB = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
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if (CREG == 0 && PREG == 0)
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assign iC = C, pC = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
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if (DREG == 0 && ADREG == 0)
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assign iD = D, pD = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(25)) rD (.I(D), .O(iD), .Q(pD));
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if (PREG == 0) begin
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if (MREG == 1) begin
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assign pAD = 1'bx;
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\$__ABC9_REG rM (.Q(pM));
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end else begin
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if (ADREG == 1)
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\$__ABC9_REG rAD (.Q(pAD));
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else
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assign pAD = 1'bx;
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assign pM = 1'bx;
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end
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assign pP = 1'bx;
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end else begin
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assign pAD = 1'bx, pM = 1'bx;
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\$__ABC9_REG rP (.Q(pP));
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end
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if (MREG == 0 && PREG == 0)
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assign mP = oP, mPCOUT = oPCOUT;
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else
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assign mP = 1'bx, mPCOUT = 1'bx;
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\$__ABC9_DSP48E1_MULT_DPORT_P_MUX muxP (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
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);
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\$__ABC9_DSP48E1_MULT_DPORT_PCOUT_MUX muxPCOUT (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
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);
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`DSP48E1_INST(\$__ABC9_DSP48E1_MULT_DPORT )
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end
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else if (USE_MULT == "NONE" && USE_DPORT == "FALSE") begin
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// Disconnect the A-input if MREG is enabled, since
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// combinatorial path is broken
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if (AREG == 0 && PREG == 0)
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assign iA = A, pA = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(30)) rA (.I(A), .O(iA), .Q(pA));
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if (BREG == 0 && PREG == 0)
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assign iB = B, pB = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(18)) rB (.I(B), .O(iB), .Q(pB));
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if (CREG == 0 && PREG == 0)
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assign iC = C, pC = 1'bx;
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else
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\$__ABC9_REG #(.WIDTH(48)) rC (.I(C), .O(iC), .Q(pC));
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if (DREG == 1 && techmap_guard)
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$error("Invalid DSP48E1 configuration: DREG enabled but USE_DPORT == \"FALSE\"");
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assign pD = 1'bx;
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if (ADREG == 1 && techmap_guard)
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$error("Invalid DSP48E1 configuration: ADREG enabled but USE_DPORT == \"FALSE\"");
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assign pAD = 1'bx;
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if (MREG == 1 && techmap_guard)
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$error("Invalid DSP48E1 configuration: MREG enabled but USE_MULT == \"NONE\"");
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assign pM = 1'bx;
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if (PREG == 1)
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\$__ABC9_REG rP (.Q(pP));
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else
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assign pP = 1'bx;
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if (MREG == 0 && PREG == 0)
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assign mP = oP, mPCOUT = oPCOUT;
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else
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assign mP = 1'bx, mPCOUT = 1'bx;
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\$__ABC9_DSP48E1_P_MUX muxP (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oP), .Mq(pM), .P(mP), .Pq(pP), .O(P)
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);
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\$__ABC9_DSP48E1_PCOUT_MUX muxPCOUT (
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.Aq(pA), .Bq(pB), .Cq(pC), .Dq(pD), .ADq(pAD), .I(oPCOUT), .Mq(pM), .P(mPCOUT), .Pq(pP), .O(PCOUT)
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);
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`DSP48E1_INST(\$__ABC9_DSP48E1 )
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end
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else
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$error("Invalid DSP48E1 configuration");
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endgenerate
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`undef DSP48E1_INST
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endmodule
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