URL
https://opencores.org/ocsvn/pavr/pavr/trunk
Subversion Repositories pavr
[/] [pavr/] [trunk/] [src/] [test_pavr_util.vhd] - Rev 8
Go to most recent revision | Compare with Previous | Blame | View Log
-- <File header> -- Project -- pAVR (pipelined AVR) is an 8 bit RISC controller, compatible with Atmel's -- AVR core, but about 3x faster in terms of both clock frequency and MIPS. -- The increase in speed comes from a relatively deep pipeline. The original -- AVR core has only two pipeline stages (fetch and execute), while pAVR has -- 6 pipeline stages: -- 1. PM (read Program Memory) -- 2. INSTR (load Instruction) -- 3. RFRD (decode Instruction and read Register File) -- 4. OPS (load Operands) -- 5. ALU (execute ALU opcode or access Unified Memory) -- 6. RFWR (write Register File) -- Version -- 0.32 -- Date -- 2002 August 07 -- Author -- Doru Cuturela, doruu@yahoo.com -- License -- This program is free software; you can redistribute it and/or modify -- it under the terms of the GNU General Public License as published by -- the Free Software Foundation; either version 2 of the License, or -- (at your option) any later version. -- This program is distributed in the hope that it will be useful, -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -- GNU General Public License for more details. -- You should have received a copy of the GNU General Public License -- along with this program; if not, write to the Free Software -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -- </File header> -- <File info> -- This is a utility for easely setting up Program Memory in the main testing -- architecture. -- This is just a testing utility, NOT actually a test. -- </File info> -- <File body> library work; use work.std_util.all; library ieee; use ieee.std_logic_1164.all; package test_pavr_util is -- Function for writing Program Memory function pm_setup(pm_addr: natural; pm_val: natural) return std_logic_vector; end; package body test_pavr_util is -- Function for writing Program Memory function pm_setup(pm_addr: natural; pm_val: natural) return std_logic_vector is variable rv: std_logic_vector(22+16-1 downto 0); begin rv := int_to_std_logic_vector(pm_addr, 22) & int_to_std_logic_vector(pm_val, 16); return rv; end; end; -- </File body>
Go to most recent revision | Compare with Previous | Blame | View Log