module ibex_multdiv_slow (
	clk_i,
	rst_ni,
	mult_en_i,
	div_en_i,
	mult_sel_i,
	div_sel_i,
	operator_i,
	signed_mode_i,
	op_a_i,
	op_b_i,
	alu_adder_ext_i,
	alu_adder_i,
	equal_to_zero_i,
	data_ind_timing_i,
	alu_operand_a_o,
	alu_operand_b_o,
	imd_val_q_i,
	imd_val_d_o,
	imd_val_we_o,
	multdiv_ready_id_i,
	multdiv_result_o,
	valid_o
);
	input wire clk_i;
	input wire rst_ni;
	input wire mult_en_i;
	input wire div_en_i;
	input wire mult_sel_i;
	input wire div_sel_i;
	input wire [1:0] operator_i;
	input wire [1:0] signed_mode_i;
	input wire [31:0] op_a_i;
	input wire [31:0] op_b_i;
	input wire [33:0] alu_adder_ext_i;
	input wire [31:0] alu_adder_i;
	input wire equal_to_zero_i;
	input wire data_ind_timing_i;
	output reg [32:0] alu_operand_a_o;
	output reg [32:0] alu_operand_b_o;
	input wire [67:0] imd_val_q_i;
	output wire [67:0] imd_val_d_o;
	output wire [1:0] imd_val_we_o;
	input wire multdiv_ready_id_i;
	output wire [31:0] multdiv_result_o;
	output wire valid_o;
	localparam integer RegFileFF = 0;
	localparam integer RegFileFPGA = 1;
	localparam integer RegFileLatch = 2;
	localparam integer RV32MNone = 0;
	localparam integer RV32MSlow = 1;
	localparam integer RV32MFast = 2;
	localparam integer RV32MSingleCycle = 3;
	localparam integer RV32BNone = 0;
	localparam integer RV32BBalanced = 1;
	localparam integer RV32BFull = 2;
	localparam [6:0] OPCODE_LOAD = 7'h03;
	localparam [6:0] OPCODE_MISC_MEM = 7'h0f;
	localparam [6:0] OPCODE_OP_IMM = 7'h13;
	localparam [6:0] OPCODE_AUIPC = 7'h17;
	localparam [6:0] OPCODE_STORE = 7'h23;
	localparam [6:0] OPCODE_OP = 7'h33;
	localparam [6:0] OPCODE_LUI = 7'h37;
	localparam [6:0] OPCODE_BRANCH = 7'h63;
	localparam [6:0] OPCODE_JALR = 7'h67;
	localparam [6:0] OPCODE_JAL = 7'h6f;
	localparam [6:0] OPCODE_SYSTEM = 7'h73;
	localparam [5:0] ALU_ADD = 0;
	localparam [5:0] ALU_SUB = 1;
	localparam [5:0] ALU_XOR = 2;
	localparam [5:0] ALU_OR = 3;
	localparam [5:0] ALU_AND = 4;
	localparam [5:0] ALU_XNOR = 5;
	localparam [5:0] ALU_ORN = 6;
	localparam [5:0] ALU_ANDN = 7;
	localparam [5:0] ALU_SRA = 8;
	localparam [5:0] ALU_SRL = 9;
	localparam [5:0] ALU_SLL = 10;
	localparam [5:0] ALU_SRO = 11;
	localparam [5:0] ALU_SLO = 12;
	localparam [5:0] ALU_ROR = 13;
	localparam [5:0] ALU_ROL = 14;
	localparam [5:0] ALU_GREV = 15;
	localparam [5:0] ALU_GORC = 16;
	localparam [5:0] ALU_SHFL = 17;
	localparam [5:0] ALU_UNSHFL = 18;
	localparam [5:0] ALU_LT = 19;
	localparam [5:0] ALU_LTU = 20;
	localparam [5:0] ALU_GE = 21;
	localparam [5:0] ALU_GEU = 22;
	localparam [5:0] ALU_EQ = 23;
	localparam [5:0] ALU_NE = 24;
	localparam [5:0] ALU_MIN = 25;
	localparam [5:0] ALU_MINU = 26;
	localparam [5:0] ALU_MAX = 27;
	localparam [5:0] ALU_MAXU = 28;
	localparam [5:0] ALU_PACK = 29;
	localparam [5:0] ALU_PACKU = 30;
	localparam [5:0] ALU_PACKH = 31;
	localparam [5:0] ALU_SEXTB = 32;
	localparam [5:0] ALU_SEXTH = 33;
	localparam [5:0] ALU_CLZ = 34;
	localparam [5:0] ALU_CTZ = 35;
	localparam [5:0] ALU_PCNT = 36;
	localparam [5:0] ALU_SLT = 37;
	localparam [5:0] ALU_SLTU = 38;
	localparam [5:0] ALU_CMOV = 39;
	localparam [5:0] ALU_CMIX = 40;
	localparam [5:0] ALU_FSL = 41;
	localparam [5:0] ALU_FSR = 42;
	localparam [5:0] ALU_SBSET = 43;
	localparam [5:0] ALU_SBCLR = 44;
	localparam [5:0] ALU_SBINV = 45;
	localparam [5:0] ALU_SBEXT = 46;
	localparam [5:0] ALU_BEXT = 47;
	localparam [5:0] ALU_BDEP = 48;
	localparam [5:0] ALU_BFP = 49;
	localparam [5:0] ALU_CLMUL = 50;
	localparam [5:0] ALU_CLMULR = 51;
	localparam [5:0] ALU_CLMULH = 52;
	localparam [5:0] ALU_CRC32_B = 53;
	localparam [5:0] ALU_CRC32C_B = 54;
	localparam [5:0] ALU_CRC32_H = 55;
	localparam [5:0] ALU_CRC32C_H = 56;
	localparam [5:0] ALU_CRC32_W = 57;
	localparam [5:0] ALU_CRC32C_W = 58;
	localparam [1:0] MD_OP_MULL = 0;
	localparam [1:0] MD_OP_MULH = 1;
	localparam [1:0] MD_OP_DIV = 2;
	localparam [1:0] MD_OP_REM = 3;
	localparam [1:0] CSR_OP_READ = 0;
	localparam [1:0] CSR_OP_WRITE = 1;
	localparam [1:0] CSR_OP_SET = 2;
	localparam [1:0] CSR_OP_CLEAR = 3;
	localparam [1:0] PRIV_LVL_M = 2'b11;
	localparam [1:0] PRIV_LVL_H = 2'b10;
	localparam [1:0] PRIV_LVL_S = 2'b01;
	localparam [1:0] PRIV_LVL_U = 2'b00;
	localparam [3:0] XDEBUGVER_NO = 4'd0;
	localparam [3:0] XDEBUGVER_STD = 4'd4;
	localparam [3:0] XDEBUGVER_NONSTD = 4'd15;
	localparam [1:0] WB_INSTR_LOAD = 0;
	localparam [1:0] WB_INSTR_STORE = 1;
	localparam [1:0] WB_INSTR_OTHER = 2;
	localparam [1:0] OP_A_REG_A = 0;
	localparam [1:0] OP_A_FWD = 1;
	localparam [1:0] OP_A_CURRPC = 2;
	localparam [1:0] OP_A_IMM = 3;
	localparam [0:0] IMM_A_Z = 0;
	localparam [0:0] IMM_A_ZERO = 1;
	localparam [0:0] OP_B_REG_B = 0;
	localparam [0:0] OP_B_IMM = 1;
	localparam [2:0] IMM_B_I = 0;
	localparam [2:0] IMM_B_S = 1;
	localparam [2:0] IMM_B_B = 2;
	localparam [2:0] IMM_B_U = 3;
	localparam [2:0] IMM_B_J = 4;
	localparam [2:0] IMM_B_INCR_PC = 5;
	localparam [2:0] IMM_B_INCR_ADDR = 6;
	localparam [0:0] RF_WD_EX = 0;
	localparam [0:0] RF_WD_CSR = 1;
	localparam [2:0] PC_BOOT = 0;
	localparam [2:0] PC_JUMP = 1;
	localparam [2:0] PC_EXC = 2;
	localparam [2:0] PC_ERET = 3;
	localparam [2:0] PC_DRET = 4;
	localparam [2:0] PC_BP = 5;
	localparam [1:0] EXC_PC_EXC = 0;
	localparam [1:0] EXC_PC_IRQ = 1;
	localparam [1:0] EXC_PC_DBD = 2;
	localparam [1:0] EXC_PC_DBG_EXC = 3;
	localparam [5:0] EXC_CAUSE_IRQ_SOFTWARE_M = {1'b1, 5'd3};
	localparam [5:0] EXC_CAUSE_IRQ_TIMER_M = {1'b1, 5'd7};
	localparam [5:0] EXC_CAUSE_IRQ_EXTERNAL_M = {1'b1, 5'd11};
	localparam [5:0] EXC_CAUSE_IRQ_NM = {1'b1, 5'd31};
	localparam [5:0] EXC_CAUSE_INSN_ADDR_MISA = {1'b0, 5'd0};
	localparam [5:0] EXC_CAUSE_INSTR_ACCESS_FAULT = {1'b0, 5'd1};
	localparam [5:0] EXC_CAUSE_ILLEGAL_INSN = {1'b0, 5'd2};
	localparam [5:0] EXC_CAUSE_BREAKPOINT = {1'b0, 5'd3};
	localparam [5:0] EXC_CAUSE_LOAD_ACCESS_FAULT = {1'b0, 5'd5};
	localparam [5:0] EXC_CAUSE_STORE_ACCESS_FAULT = {1'b0, 5'd7};
	localparam [5:0] EXC_CAUSE_ECALL_UMODE = {1'b0, 5'd8};
	localparam [5:0] EXC_CAUSE_ECALL_MMODE = {1'b0, 5'd11};
	localparam [2:0] DBG_CAUSE_NONE = 3'h0;
	localparam [2:0] DBG_CAUSE_EBREAK = 3'h1;
	localparam [2:0] DBG_CAUSE_TRIGGER = 3'h2;
	localparam [2:0] DBG_CAUSE_HALTREQ = 3'h3;
	localparam [2:0] DBG_CAUSE_STEP = 3'h4;
	localparam [31:0] PMP_MAX_REGIONS = 16;
	localparam [31:0] PMP_CFG_W = 8;
	localparam [31:0] PMP_I = 0;
	localparam [31:0] PMP_D = 1;
	localparam [1:0] PMP_ACC_EXEC = 2'b00;
	localparam [1:0] PMP_ACC_WRITE = 2'b01;
	localparam [1:0] PMP_ACC_READ = 2'b10;
	localparam [1:0] PMP_MODE_OFF = 2'b00;
	localparam [1:0] PMP_MODE_TOR = 2'b01;
	localparam [1:0] PMP_MODE_NA4 = 2'b10;
	localparam [1:0] PMP_MODE_NAPOT = 2'b11;
	localparam [11:0] CSR_MHARTID = 12'hf14;
	localparam [11:0] CSR_MSTATUS = 12'h300;
	localparam [11:0] CSR_MISA = 12'h301;
	localparam [11:0] CSR_MIE = 12'h304;
	localparam [11:0] CSR_MTVEC = 12'h305;
	localparam [11:0] CSR_MSCRATCH = 12'h340;
	localparam [11:0] CSR_MEPC = 12'h341;
	localparam [11:0] CSR_MCAUSE = 12'h342;
	localparam [11:0] CSR_MTVAL = 12'h343;
	localparam [11:0] CSR_MIP = 12'h344;
	localparam [11:0] CSR_PMPCFG0 = 12'h3a0;
	localparam [11:0] CSR_PMPCFG1 = 12'h3a1;
	localparam [11:0] CSR_PMPCFG2 = 12'h3a2;
	localparam [11:0] CSR_PMPCFG3 = 12'h3a3;
	localparam [11:0] CSR_PMPADDR0 = 12'h3b0;
	localparam [11:0] CSR_PMPADDR1 = 12'h3b1;
	localparam [11:0] CSR_PMPADDR2 = 12'h3b2;
	localparam [11:0] CSR_PMPADDR3 = 12'h3b3;
	localparam [11:0] CSR_PMPADDR4 = 12'h3b4;
	localparam [11:0] CSR_PMPADDR5 = 12'h3b5;
	localparam [11:0] CSR_PMPADDR6 = 12'h3b6;
	localparam [11:0] CSR_PMPADDR7 = 12'h3b7;
	localparam [11:0] CSR_PMPADDR8 = 12'h3b8;
	localparam [11:0] CSR_PMPADDR9 = 12'h3b9;
	localparam [11:0] CSR_PMPADDR10 = 12'h3ba;
	localparam [11:0] CSR_PMPADDR11 = 12'h3bb;
	localparam [11:0] CSR_PMPADDR12 = 12'h3bc;
	localparam [11:0] CSR_PMPADDR13 = 12'h3bd;
	localparam [11:0] CSR_PMPADDR14 = 12'h3be;
	localparam [11:0] CSR_PMPADDR15 = 12'h3bf;
	localparam [11:0] CSR_TSELECT = 12'h7a0;
	localparam [11:0] CSR_TDATA1 = 12'h7a1;
	localparam [11:0] CSR_TDATA2 = 12'h7a2;
	localparam [11:0] CSR_TDATA3 = 12'h7a3;
	localparam [11:0] CSR_MCONTEXT = 12'h7a8;
	localparam [11:0] CSR_SCONTEXT = 12'h7aa;
	localparam [11:0] CSR_DCSR = 12'h7b0;
	localparam [11:0] CSR_DPC = 12'h7b1;
	localparam [11:0] CSR_DSCRATCH0 = 12'h7b2;
	localparam [11:0] CSR_DSCRATCH1 = 12'h7b3;
	localparam [11:0] CSR_MCOUNTINHIBIT = 12'h320;
	localparam [11:0] CSR_MHPMEVENT3 = 12'h323;
	localparam [11:0] CSR_MHPMEVENT4 = 12'h324;
	localparam [11:0] CSR_MHPMEVENT5 = 12'h325;
	localparam [11:0] CSR_MHPMEVENT6 = 12'h326;
	localparam [11:0] CSR_MHPMEVENT7 = 12'h327;
	localparam [11:0] CSR_MHPMEVENT8 = 12'h328;
	localparam [11:0] CSR_MHPMEVENT9 = 12'h329;
	localparam [11:0] CSR_MHPMEVENT10 = 12'h32a;
	localparam [11:0] CSR_MHPMEVENT11 = 12'h32b;
	localparam [11:0] CSR_MHPMEVENT12 = 12'h32c;
	localparam [11:0] CSR_MHPMEVENT13 = 12'h32d;
	localparam [11:0] CSR_MHPMEVENT14 = 12'h32e;
	localparam [11:0] CSR_MHPMEVENT15 = 12'h32f;
	localparam [11:0] CSR_MHPMEVENT16 = 12'h330;
	localparam [11:0] CSR_MHPMEVENT17 = 12'h331;
	localparam [11:0] CSR_MHPMEVENT18 = 12'h332;
	localparam [11:0] CSR_MHPMEVENT19 = 12'h333;
	localparam [11:0] CSR_MHPMEVENT20 = 12'h334;
	localparam [11:0] CSR_MHPMEVENT21 = 12'h335;
	localparam [11:0] CSR_MHPMEVENT22 = 12'h336;
	localparam [11:0] CSR_MHPMEVENT23 = 12'h337;
	localparam [11:0] CSR_MHPMEVENT24 = 12'h338;
	localparam [11:0] CSR_MHPMEVENT25 = 12'h339;
	localparam [11:0] CSR_MHPMEVENT26 = 12'h33a;
	localparam [11:0] CSR_MHPMEVENT27 = 12'h33b;
	localparam [11:0] CSR_MHPMEVENT28 = 12'h33c;
	localparam [11:0] CSR_MHPMEVENT29 = 12'h33d;
	localparam [11:0] CSR_MHPMEVENT30 = 12'h33e;
	localparam [11:0] CSR_MHPMEVENT31 = 12'h33f;
	localparam [11:0] CSR_MCYCLE = 12'hb00;
	localparam [11:0] CSR_MINSTRET = 12'hb02;
	localparam [11:0] CSR_MHPMCOUNTER3 = 12'hb03;
	localparam [11:0] CSR_MHPMCOUNTER4 = 12'hb04;
	localparam [11:0] CSR_MHPMCOUNTER5 = 12'hb05;
	localparam [11:0] CSR_MHPMCOUNTER6 = 12'hb06;
	localparam [11:0] CSR_MHPMCOUNTER7 = 12'hb07;
	localparam [11:0] CSR_MHPMCOUNTER8 = 12'hb08;
	localparam [11:0] CSR_MHPMCOUNTER9 = 12'hb09;
	localparam [11:0] CSR_MHPMCOUNTER10 = 12'hb0a;
	localparam [11:0] CSR_MHPMCOUNTER11 = 12'hb0b;
	localparam [11:0] CSR_MHPMCOUNTER12 = 12'hb0c;
	localparam [11:0] CSR_MHPMCOUNTER13 = 12'hb0d;
	localparam [11:0] CSR_MHPMCOUNTER14 = 12'hb0e;
	localparam [11:0] CSR_MHPMCOUNTER15 = 12'hb0f;
	localparam [11:0] CSR_MHPMCOUNTER16 = 12'hb10;
	localparam [11:0] CSR_MHPMCOUNTER17 = 12'hb11;
	localparam [11:0] CSR_MHPMCOUNTER18 = 12'hb12;
	localparam [11:0] CSR_MHPMCOUNTER19 = 12'hb13;
	localparam [11:0] CSR_MHPMCOUNTER20 = 12'hb14;
	localparam [11:0] CSR_MHPMCOUNTER21 = 12'hb15;
	localparam [11:0] CSR_MHPMCOUNTER22 = 12'hb16;
	localparam [11:0] CSR_MHPMCOUNTER23 = 12'hb17;
	localparam [11:0] CSR_MHPMCOUNTER24 = 12'hb18;
	localparam [11:0] CSR_MHPMCOUNTER25 = 12'hb19;
	localparam [11:0] CSR_MHPMCOUNTER26 = 12'hb1a;
	localparam [11:0] CSR_MHPMCOUNTER27 = 12'hb1b;
	localparam [11:0] CSR_MHPMCOUNTER28 = 12'hb1c;
	localparam [11:0] CSR_MHPMCOUNTER29 = 12'hb1d;
	localparam [11:0] CSR_MHPMCOUNTER30 = 12'hb1e;
	localparam [11:0] CSR_MHPMCOUNTER31 = 12'hb1f;
	localparam [11:0] CSR_MCYCLEH = 12'hb80;
	localparam [11:0] CSR_MINSTRETH = 12'hb82;
	localparam [11:0] CSR_MHPMCOUNTER3H = 12'hb83;
	localparam [11:0] CSR_MHPMCOUNTER4H = 12'hb84;
	localparam [11:0] CSR_MHPMCOUNTER5H = 12'hb85;
	localparam [11:0] CSR_MHPMCOUNTER6H = 12'hb86;
	localparam [11:0] CSR_MHPMCOUNTER7H = 12'hb87;
	localparam [11:0] CSR_MHPMCOUNTER8H = 12'hb88;
	localparam [11:0] CSR_MHPMCOUNTER9H = 12'hb89;
	localparam [11:0] CSR_MHPMCOUNTER10H = 12'hb8a;
	localparam [11:0] CSR_MHPMCOUNTER11H = 12'hb8b;
	localparam [11:0] CSR_MHPMCOUNTER12H = 12'hb8c;
	localparam [11:0] CSR_MHPMCOUNTER13H = 12'hb8d;
	localparam [11:0] CSR_MHPMCOUNTER14H = 12'hb8e;
	localparam [11:0] CSR_MHPMCOUNTER15H = 12'hb8f;
	localparam [11:0] CSR_MHPMCOUNTER16H = 12'hb90;
	localparam [11:0] CSR_MHPMCOUNTER17H = 12'hb91;
	localparam [11:0] CSR_MHPMCOUNTER18H = 12'hb92;
	localparam [11:0] CSR_MHPMCOUNTER19H = 12'hb93;
	localparam [11:0] CSR_MHPMCOUNTER20H = 12'hb94;
	localparam [11:0] CSR_MHPMCOUNTER21H = 12'hb95;
	localparam [11:0] CSR_MHPMCOUNTER22H = 12'hb96;
	localparam [11:0] CSR_MHPMCOUNTER23H = 12'hb97;
	localparam [11:0] CSR_MHPMCOUNTER24H = 12'hb98;
	localparam [11:0] CSR_MHPMCOUNTER25H = 12'hb99;
	localparam [11:0] CSR_MHPMCOUNTER26H = 12'hb9a;
	localparam [11:0] CSR_MHPMCOUNTER27H = 12'hb9b;
	localparam [11:0] CSR_MHPMCOUNTER28H = 12'hb9c;
	localparam [11:0] CSR_MHPMCOUNTER29H = 12'hb9d;
	localparam [11:0] CSR_MHPMCOUNTER30H = 12'hb9e;
	localparam [11:0] CSR_MHPMCOUNTER31H = 12'hb9f;
	localparam [11:0] CSR_CPUCTRL = 12'h7c0;
	localparam [11:0] CSR_SECURESEED = 12'h7c1;
	localparam [11:0] CSR_OFF_PMP_CFG = 12'h3a0;
	localparam [11:0] CSR_OFF_PMP_ADDR = 12'h3b0;
	localparam [31:0] CSR_MSTATUS_MIE_BIT = 3;
	localparam [31:0] CSR_MSTATUS_MPIE_BIT = 7;
	localparam [31:0] CSR_MSTATUS_MPP_BIT_LOW = 11;
	localparam [31:0] CSR_MSTATUS_MPP_BIT_HIGH = 12;
	localparam [31:0] CSR_MSTATUS_MPRV_BIT = 17;
	localparam [31:0] CSR_MSTATUS_TW_BIT = 21;
	localparam [1:0] CSR_MISA_MXL = 2'd1;
	localparam [31:0] CSR_MSIX_BIT = 3;
	localparam [31:0] CSR_MTIX_BIT = 7;
	localparam [31:0] CSR_MEIX_BIT = 11;
	localparam [31:0] CSR_MFIX_BIT_LOW = 16;
	localparam [31:0] CSR_MFIX_BIT_HIGH = 30;
	reg [2:0] md_state_q;
	reg [2:0] md_state_d;
	wire [32:0] accum_window_q;
	reg [32:0] accum_window_d;
	wire unused_imd_val0;
	wire [1:0] unused_imd_val1;
	wire [32:0] res_adder_l;
	wire [32:0] res_adder_h;
	reg [4:0] multdiv_count_q;
	reg [4:0] multdiv_count_d;
	reg [32:0] op_b_shift_q;
	reg [32:0] op_b_shift_d;
	reg [32:0] op_a_shift_q;
	reg [32:0] op_a_shift_d;
	wire [32:0] op_a_ext;
	wire [32:0] op_b_ext;
	wire [32:0] one_shift;
	wire [32:0] op_a_bw_pp;
	wire [32:0] op_a_bw_last_pp;
	wire [31:0] b_0;
	wire sign_a;
	wire sign_b;
	wire [32:0] next_quotient;
	wire [31:0] next_remainder;
	wire [31:0] op_numerator_q;
	reg [31:0] op_numerator_d;
	wire is_greater_equal;
	wire div_change_sign;
	wire rem_change_sign;
	reg div_by_zero_d;
	reg div_by_zero_q;
	reg multdiv_hold;
	wire multdiv_en;
	assign res_adder_l = alu_adder_ext_i[32:0];
	assign res_adder_h = alu_adder_ext_i[33:1];
	assign imd_val_d_o[34+:34] = {1'b0, accum_window_d};
	assign imd_val_we_o[0] = ~multdiv_hold;
	assign accum_window_q = imd_val_q_i[66-:33];
	assign unused_imd_val0 = imd_val_q_i[67];
	assign imd_val_d_o[0+:34] = {2'b00, op_numerator_d};
	assign imd_val_we_o[1] = multdiv_en;
	assign op_numerator_q = imd_val_q_i[31-:32];
	assign unused_imd_val1 = imd_val_q_i[33-:2];
	localparam [2:0] MD_ABS_A = 1;
	localparam [2:0] MD_ABS_B = 2;
	localparam [2:0] MD_CHANGE_SIGN = 5;
	localparam [2:0] MD_IDLE = 0;
	localparam [2:0] MD_LAST = 4;
	always @(*) begin
		alu_operand_a_o = accum_window_q;
		case (operator_i)
			MD_OP_MULL: alu_operand_b_o = op_a_bw_pp;
			MD_OP_MULH: alu_operand_b_o = (md_state_q == MD_LAST ? op_a_bw_last_pp : op_a_bw_pp);
			MD_OP_DIV, MD_OP_REM:
				case (md_state_q)
					MD_IDLE: begin
						alu_operand_a_o = {32'h00000000, 1'b1};
						alu_operand_b_o = {~op_b_i, 1'b1};
					end
					MD_ABS_A: begin
						alu_operand_a_o = {32'h00000000, 1'b1};
						alu_operand_b_o = {~op_a_i, 1'b1};
					end
					MD_ABS_B: begin
						alu_operand_a_o = {32'h00000000, 1'b1};
						alu_operand_b_o = {~op_b_i, 1'b1};
					end
					MD_CHANGE_SIGN: begin
						alu_operand_a_o = {32'h00000000, 1'b1};
						alu_operand_b_o = {~accum_window_q[31:0], 1'b1};
					end
					default: begin
						alu_operand_a_o = {accum_window_q[31:0], 1'b1};
						alu_operand_b_o = {~op_b_shift_q[31:0], 1'b1};
					end
				endcase
			default: begin
				alu_operand_a_o = accum_window_q;
				alu_operand_b_o = {~op_b_shift_q[31:0], 1'b1};
			end
		endcase
	end
	assign b_0 = {32 {op_b_shift_q[0]}};
	assign op_a_bw_pp = {~(op_a_shift_q[32] & op_b_shift_q[0]), op_a_shift_q[31:0] & b_0};
	assign op_a_bw_last_pp = {op_a_shift_q[32] & op_b_shift_q[0], ~(op_a_shift_q[31:0] & b_0)};
	assign sign_a = op_a_i[31] & signed_mode_i[0];
	assign sign_b = op_b_i[31] & signed_mode_i[1];
	assign op_a_ext = {sign_a, op_a_i};
	assign op_b_ext = {sign_b, op_b_i};
	assign is_greater_equal = (accum_window_q[31] == op_b_shift_q[31] ? ~res_adder_h[31] : accum_window_q[31]);
	assign one_shift = {32'b00000000000000000000000000000000, 1'b1} << multdiv_count_q;
	assign next_remainder = (is_greater_equal ? res_adder_h[31:0] : accum_window_q[31:0]);
	assign next_quotient = (is_greater_equal ? op_a_shift_q | one_shift : op_a_shift_q);
	assign div_change_sign = (sign_a ^ sign_b) & ~div_by_zero_q;
	assign rem_change_sign = sign_a;
	localparam [2:0] MD_COMP = 3;
	localparam [2:0] MD_FINISH = 6;
	always @(*) begin
		multdiv_count_d = multdiv_count_q;
		accum_window_d = accum_window_q;
		op_b_shift_d = op_b_shift_q;
		op_a_shift_d = op_a_shift_q;
		op_numerator_d = op_numerator_q;
		md_state_d = md_state_q;
		multdiv_hold = 1'b0;
		div_by_zero_d = div_by_zero_q;
		if (mult_sel_i || div_sel_i)
			case (md_state_q)
				MD_IDLE: begin
					case (operator_i)
						MD_OP_MULL: begin
							op_a_shift_d = op_a_ext << 1;
							accum_window_d = {~(op_a_ext[32] & op_b_i[0]), op_a_ext[31:0] & {32 {op_b_i[0]}}};
							op_b_shift_d = op_b_ext >> 1;
							md_state_d = (!data_ind_timing_i && ((op_b_ext >> 1) == 0) ? MD_LAST : MD_COMP);
						end
						MD_OP_MULH: begin
							op_a_shift_d = op_a_ext;
							accum_window_d = {1'b1, ~(op_a_ext[32] & op_b_i[0]), op_a_ext[31:1] & {31 {op_b_i[0]}}};
							op_b_shift_d = op_b_ext >> 1;
							md_state_d = MD_COMP;
						end
						MD_OP_DIV: begin
							accum_window_d = {33 {1'b1}};
							md_state_d = (!data_ind_timing_i && equal_to_zero_i ? MD_FINISH : MD_ABS_A);
							div_by_zero_d = equal_to_zero_i;
						end
						MD_OP_REM: begin
							accum_window_d = op_a_ext;
							md_state_d = (!data_ind_timing_i && equal_to_zero_i ? MD_FINISH : MD_ABS_A);
						end
						default:
							;
					endcase
					multdiv_count_d = 5'd31;
				end
				MD_ABS_A: begin
					op_a_shift_d = {33 {1'sb0}};
					op_numerator_d = (sign_a ? alu_adder_i : op_a_i);
					md_state_d = MD_ABS_B;
				end
				MD_ABS_B: begin
					accum_window_d = {32'h00000000, op_numerator_q[31]};
					op_b_shift_d = (sign_b ? {1'b0, alu_adder_i} : {1'b0, op_b_i});
					md_state_d = MD_COMP;
				end
				MD_COMP: begin
					multdiv_count_d = multdiv_count_q - 5'h01;
					case (operator_i)
						MD_OP_MULL: begin
							accum_window_d = res_adder_l;
							op_a_shift_d = op_a_shift_q << 1;
							op_b_shift_d = op_b_shift_q >> 1;
							md_state_d = ((!data_ind_timing_i && (op_b_shift_d == 0)) || (multdiv_count_q == 5'd1) ? MD_LAST : MD_COMP);
						end
						MD_OP_MULH: begin
							accum_window_d = res_adder_h;
							op_a_shift_d = op_a_shift_q;
							op_b_shift_d = op_b_shift_q >> 1;
							md_state_d = (multdiv_count_q == 5'd1 ? MD_LAST : MD_COMP);
						end
						MD_OP_DIV, MD_OP_REM: begin
							accum_window_d = {next_remainder[31:0], op_numerator_q[multdiv_count_d]};
							op_a_shift_d = next_quotient;
							md_state_d = (multdiv_count_q == 5'd1 ? MD_LAST : MD_COMP);
						end
						default:
							;
					endcase
				end
				MD_LAST:
					case (operator_i)
						MD_OP_MULL: begin
							accum_window_d = res_adder_l;
							md_state_d = MD_IDLE;
							multdiv_hold = ~multdiv_ready_id_i;
						end
						MD_OP_MULH: begin
							accum_window_d = res_adder_l;
							md_state_d = MD_IDLE;
							md_state_d = MD_IDLE;
							multdiv_hold = ~multdiv_ready_id_i;
						end
						MD_OP_DIV: begin
							accum_window_d = next_quotient;
							md_state_d = MD_CHANGE_SIGN;
						end
						MD_OP_REM: begin
							accum_window_d = {1'b0, next_remainder[31:0]};
							md_state_d = MD_CHANGE_SIGN;
						end
						default:
							;
					endcase
				MD_CHANGE_SIGN: begin
					md_state_d = MD_FINISH;
					case (operator_i)
						MD_OP_DIV: accum_window_d = (div_change_sign ? {1'b0, alu_adder_i} : accum_window_q);
						MD_OP_REM: accum_window_d = (rem_change_sign ? {1'b0, alu_adder_i} : accum_window_q);
						default:
							;
					endcase
				end
				MD_FINISH: begin
					md_state_d = MD_IDLE;
					multdiv_hold = ~multdiv_ready_id_i;
				end
				default: md_state_d = MD_IDLE;
			endcase
	end
	assign multdiv_en = (mult_en_i | div_en_i) & ~multdiv_hold;
	always @(posedge clk_i or negedge rst_ni)
		if (!rst_ni) begin
			multdiv_count_q <= 5'h00;
			op_b_shift_q <= 33'h000000000;
			op_a_shift_q <= 33'h000000000;
			md_state_q <= MD_IDLE;
			div_by_zero_q <= 1'b0;
		end
		else if (multdiv_en) begin
			multdiv_count_q <= multdiv_count_d;
			op_b_shift_q <= op_b_shift_d;
			op_a_shift_q <= op_a_shift_d;
			md_state_q <= md_state_d;
			div_by_zero_q <= div_by_zero_d;
		end
	assign valid_o = (md_state_q == MD_FINISH) | ((md_state_q == MD_LAST) & ((operator_i == MD_OP_MULL) | (operator_i == MD_OP_MULH)));
	assign multdiv_result_o = (div_en_i ? accum_window_q[31:0] : res_adder_l[31:0]);
endmodule