mirror of
https://github.com/openhwgroup/cvw
synced 2025-01-24 05:24:49 +00:00
63 lines
2.7 KiB
Systemverilog
63 lines
2.7 KiB
Systemverilog
//////////////////////////////////////////
|
|
// wally-shared.vh
|
|
//
|
|
// Written: david_harris@hmc.edu 7 June 2021
|
|
//
|
|
// Purpose: Shared and default configuration values common to all designs
|
|
//
|
|
// A component of the Wally configurable RISC-V project.
|
|
//
|
|
// Copyright (C) 2021 Harvey Mudd College & Oklahoma State University
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation
|
|
// files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy,
|
|
// modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software
|
|
// is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
|
|
// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
///////////////////////////////////////////
|
|
|
|
// include shared constants
|
|
`include "wally-constants.vh"
|
|
|
|
// macros to define supported modes
|
|
// NOTE: No hardware support fo Q yet
|
|
|
|
`define A_SUPPORTED ((`MISA >> 0) % 2 == 1)
|
|
`define C_SUPPORTED ((`MISA >> 2) % 2 == 1)
|
|
`define D_SUPPORTED ((`MISA >> 3) % 2 == 1)
|
|
`define E_SUPPORTED ((`MISA >> 4) % 2 == 1)
|
|
`define F_SUPPORTED ((`MISA >> 5) % 2 == 1)
|
|
`define I_SUPPORTED ((`MISA >> 8) % 2 == 1)
|
|
`define M_SUPPORTED ((`MISA >> 12) % 2 == 1)
|
|
`define Q_SUPPORTED ((`MISA >> 16) % 2 == 1)
|
|
`define S_SUPPORTED ((`MISA >> 18) % 2 == 1)
|
|
`define U_SUPPORTED ((`MISA >> 20) % 2 == 1)
|
|
|
|
// N-mode user-level interrupts are depricated per Andrew Waterman 1/13/21
|
|
//`define N_SUPPORTED ((MISA >> 13) % 2 == 1)
|
|
`define N_SUPPORTED 0
|
|
|
|
|
|
// logarithm of XLEN, used for number of index bits to select
|
|
`define LOG_XLEN (`XLEN == 32 ? 5 : 6)
|
|
|
|
// Number of 64 bit PMP Configuration Register entries (or pairs of 32 bit entries)
|
|
`define PMPCFG_ENTRIES (`PMP_ENTRIES/8)
|
|
|
|
// Floating point length FLEN and number of exponent (NE) and fraction (NF) bits
|
|
`define FLEN 64//(`Q_SUPPORTED ? 128 : `D_SUPPORTED ? 64 : 32)
|
|
`define NE 11//(`Q_SUPPORTED ? 15 : `D_SUPPORTED ? 11 : 8)
|
|
`define NF 52//(`Q_SUPPORTED ? 112 : `D_SUPPORTED ? 52 : 23)
|
|
|
|
// Disable spurious Verilator warnings
|
|
|
|
/* verilator lint_off STMTDLY */
|
|
/* verilator lint_off ASSIGNDLY */
|
|
/* verilator lint_off PINCONNECTEMPTY */
|