我需要你的帮助来修复我的vhdl代码中的一些错误。我正在使用fpga优势5.2,它太旧了,但我使用它是因为框图,而不是用自己编写代码。我正在开发使用vhdl的mips处理器,我已经完成除了两个块之外的所有块,这些块是数据内存和指令内存。这两个块具有相同的错误:使用fpga的VHDL代码错误
数据内存错误:
ERROR: C:/Single-cycle processor/Processor/hdl/dmem_untitled.vhd(34): near "is": expecting: BEGIN ERROR: C:/Single-cycle processor/Processor/hdl/dmem_untitled.vhd(51): near "process": expecting: ';'
指令存储器的错误:
ERROR: C:/Single-cycle processor/Processor/hdl/imem_untitled.vhd(38): near "is": expecting: BEGIN ERROR: C:/Single-cycle processor/Processor/hdl/imem_untitled.vhd(53): near "process": expecting: ';'
这里是对数据存储的代码:
-- hds header_start
--
-- VHDL Architecture Processor.dmem.untitled
--
-- Created:
-- by - Ahmed.UNKNOWN (AHMED-PC)
-- at - 01:58:50 04/21/2016
--
-- Generated by Mentor Graphics' HDL Designer(TM) 2001.5 (Build 170)
--
-- hds header_end
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.NUMERIC_STD.all;
use IEEE.STD_LOGIC_SIGNED.all;
use IEEE.STD_LOGIC_ARITH.all;
use IEEE.std_logic_textio.all;
library STD;
use STD.textio.all;
ENTITY dmem IS
-- Declarations
port(clk, we: in STD_LOGIC;
a, wd: in STD_LOGIC_VECTOR (15 downto 0);
rd: out STD_LOGIC_VECTOR (15 downto 0));
END dmem ;
-- hds interface_end
ARCHITECTURE untitled OF dmem IS
BEGIN
process is
type ramtype is array (63 downto 0) of STD_LOGIC_VECTOR(15 downto 0);
variable mem: ramtype;
variable IADR: INTEGER;
begin
IADR:= CONV_INTEGER(a(7 downto 2));
-- read or write memory
--loop
if rising_edge(clk) then
if (we='1') then mem (IADR):= wd;
end if;
end if;
rd <= mem (IADR);
wait on clk, a;
--end loop;
end process;
END untitled;
而且指令存储器的代码:
-- hds header_start
--
-- VHDL Architecture Processor.IMEM.untitled
--
-- Created:
-- by - Ahmed.UNKNOWN (AHMED-PC)
-- at - 02:17:30 04/21/2016
--
-- Generated by Mentor Graphics' HDL Designer(TM) 2001.5 (Build 170)
--
-- hds header_end
library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.STD_LOGIC_SIGNED.all;
use IEEE.STD_LOGIC_ARITH.all;
use IEEE.std_logic_textio.all;
library STD;
use STD.textio.all;
ENTITY IMEM IS
-- Declarations
port(
rd: out STD_LOGIC_VECTOR(31 downto 0);
a: in STD_LOGIC_VECTOR(5 downto 0)
);
END IMEM ;
-- hds interface_end
ARCHITECTURE untitled OF IMEM IS
begin
ROM_PROCESS: process(a) is
type MEM is array(0 to 63) of STD_LOGIC_VECTOR(31 downto 0);
variable MEMORY: MEM := (others => X"00000000");
variable IADR: INTEGER;
begin
memory(0) := X"00611820" ; -- add $3, $3, $1
memory(1) := X"ac030004" ; -- sw $3, 4($0)
memory(2) := X"00221024" ; -- and $2,$1,$2
memory(3) := X"10220001" ; -- beq $1, $2, SAME
memory(4) := X"8c010004" ; -- lw $1, 4($0)
memory(5) := X"0022182a" ; -- SAME: slt $3, $1, $2
IADR:= CONV_INTEGER(a);
rd <= MEMORY(IADR);
end process;
END untitled;
谢谢你的帮助 – ahmed