hdl/verilog/rvv/inc/rvv_backend_define.svh

`ifndef HDL_VERILOG_RVV_DESIGN_RVV_DEFINE_SVH
`define HDL_VERILOG_RVV_DESIGN_RVV_DEFINE_SVH

`ifndef RVV_CONFIG_SVH
`include "rvv_backend_config.svh"
`endif

// number of scalar core issue lane
`define ISSUE_LANE              4

// the max number of instructions are decoded per cycle in DE stage
`define NUM_DE_INST             2

// multi-issue and multi-read-ports of VRF
`ifdef ISSUE_3_READ_PORT_6
  // the max number of uops are written to Uops Queue per cycle in DE stage
  `define NUM_DE_UOP            6
  `define NUM_DE_UOP_WIDTH      3
  // the max number of uops are dispated per cycle in DP stage.
  `define NUM_DP_UOP            3
  // the number of read ports for VRF
  `define NUM_DP_VRF            6

  // the depth of queue/station/buffer
  `define CQ_DEPTH              16
  `define UQ_DEPTH              16
  `define ALU_RS_DEPTH          8
  `define PMTRDT_RS_DEPTH       8
  `define MUL_RS_DEPTH          8
  `define DIV_RS_DEPTH          8
  `define LSU_RS_DEPTH          8
  `define ROB_DEPTH             8

`elsif ISSUE_2_READ_PORT_6
  // the max number of uops are written to Uops Queue per cycle in DE stage
  `define NUM_DE_UOP            4
  `define NUM_DE_UOP_WIDTH      3
  // the max number of uops are dispated per cycle in DP stage
  `define NUM_DP_UOP            2
  // the number of read ports for VRF
  `define NUM_DP_VRF            6

  // the depth of queue/station/buffer
  `define CQ_DEPTH              16
  `define UQ_DEPTH              16
  `define ALU_RS_DEPTH          4
  `define PMTRDT_RS_DEPTH       8
  `define MUL_RS_DEPTH          4
  `define DIV_RS_DEPTH          4
  `define LSU_RS_DEPTH          4
  `define ROB_DEPTH             8

`else  //ISSUE_2_READ_PORT_4
  // the max number of uops are written to Uops Queue per cycle in DE stage
  `define NUM_DE_UOP            4
  `define NUM_DE_UOP_WIDTH      3
  // the max number of uops are dispated per cycle in DP stage
  `define NUM_DP_UOP            2
  // the number of read ports for VRF
  `define NUM_DP_VRF            4

  // the depth of queue/station/buffer
  `define CQ_DEPTH              16
  `define UQ_DEPTH              16
  `define ALU_RS_DEPTH          4
  `define PMTRDT_RS_DEPTH       8
  `define MUL_RS_DEPTH          4
  `define DIV_RS_DEPTH          4
  `define LSU_RS_DEPTH          4
  `define ROB_DEPTH             8
`endif

// VRF REG depth
`define NUM_VRF                 32

// Uops Queue data width
`define UQ_WIDTH                $bits(UOP_QUEUE_t)

// the max number of processor unit in EX stage
`define NUM_LSU                 2
`define NUM_ALU                 2
`define NUM_MUL                 2
`define NUM_PMTRDT              1
`define NUM_DIV                 1
`define NUM_PU                  `NUM_ALU+`NUM_PMTRDT+`NUM_MUL+`NUM_DIV+`NUM_LSU
 
// Reservation Station data width
`define ALU_RS_WIDTH            $bits(ALU_RS_t)

// the max number of uops are retired per cycle in RT stage
`define NUM_RT_UOP              4

`define ROB_DEPTH_WIDTH         $clog2(`ROB_DEPTH)

`define PC_WIDTH                32
`define XLEN                    32
`define BYTE_WIDTH              8
`define HWORD_WIDTH             16
`define WORD_WIDTH              32

// an instruction will be split to EMUL_max=8 uops at most
`define EMUL_MAX                8
`define UOP_INDEX_WIDTH         $clog2(`EMUL_MAX)

// Vector CSR
`define VLEN                    128
`define VLENB                   (`VLEN/8)
// VLMAX = VLEN*LMUL/SEW
// vstart < VLMAX_max and vl <= VLMAX_max, VLMAX_max=VLEN*LMUL_max(8)/SEW_min(8)=VLEN
`define VLMAX_MAX               `VLEN
`define VSTART_WIDTH            $clog2(`VLEN)
`define VL_WIDTH                $clog2(`VLEN)+1
`define VTYPE_VILL_WIDTH        1
`define VTYPE_VMA_WIDTH         1
`define VTYPE_VTA_WIDTH         1
`define VTYPE_VSEW_WIDTH        3
`define VTYPE_VLMUL_WIDTH       3
`define VCSR_VXRM_WIDTH         2
`define VCSR_VXSAT_WIDTH        1

// Instruction encoding
`define FUNCT6_WIDTH            6
`define NFIELD_WIDTH            3
`define VM_WIDTH                1
`define REGFILE_INDEX_WIDTH     5
`define UMOP_WIDTH              5
`define NREG_WIDTH              3
`define IMM_WIDTH               5
`define FUNCT3_WIDTH            3
`define OPCODE_WIDTH            7

// V0 mask regsiter index
`define V0_INDEX                5'b00000

`endif  // HDL_VERILOG_RVV_DESIGN_RVV_DEFINE_SVH