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vhdl/lib/CPUs/MIPS/src/irom_hello.vhd
T
jens 335cc4e9d2 Initial import 
git-svn-id: http://moon:8086/svn/vhdl/trunk@2 cc03376c-175c-47c8-b038-4cd826a8556b
2008-08-23 07:19:47 +00:00

321 lines
8.4 KiB
VHDL
Raw Blame History

-------------------------------------------------------------------------
-- Project: JIPS, a portable 32-bit RISC CPU written in VHDL
-- This file: The ROM file for use in your VHDL design
--
-- Copyright (C) 2008 J. Ahrensfeld
--
-- 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 3 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, see <http://www.gnu.org/licenses/>.
--
-- For questions and ideas, please contact the author at jens@jayfield.org
--
--------------------------------------------------------------------------
LIBRARY ieee;
use IEEE.STD_LOGIC_1164.ALL;
USE ieee.numeric_std.ALL;
ENTITY rom IS
Generic
(
addr_width : integer := 2;
data_width : integer := 32
);
Port
(
clk : in STD_LOGIC;
addr : in unsigned(addr_width-1 downto 0);
dout : out unsigned(data_width-1 downto 0)
);
END rom;
ARCHITECTURE itest OF rom IS
subtype word_t is unsigned(data_width-1 downto 0);
type word_array_t is array (0 to 2**addr_width-1) of word_t;
-- Assembled from itest.jsm
constant word_array : word_array_t :=
(
X"3C1D7FFF", -- 00000000
X"0C100014", -- 00000004
X"37BDEFFC", -- 00000008
X"24080002", -- 0000000C
X"0107102A", -- 00000010
X"ACC40000", -- 00000014
X"1040000B", -- 00000018
X"ACC50004", -- 0000001C
X"24C60008", -- 00000020
X"24E8FFFE", -- 00000024
X"8CC2FFF8", -- 00000028
X"8CC3FFFC", -- 0000002C
X"2508FFFF", -- 00000030
X"00431021", -- 00000034
X"ACC20000", -- 00000038
X"1500FFFA", -- 0000003C
X"24C60004", -- 00000040
X"00E04021", -- 00000044
X"03E00008", -- 00000048
X"01001021", -- 0000004C
X"27BDFF78", -- 00000050
X"3C021003", -- 00000054
X"3C030001", -- 00000058
X"AFB60078", -- 0000005C
X"3456FFFC", -- 00000060
X"3C02AAAA", -- 00000064
X"AFB7007C", -- 00000068
X"AFB50074", -- 0000006C
X"AFB40070", -- 00000070
X"AFB20068", -- 00000074
X"AFB00060", -- 00000078
X"AFBF0080", -- 0000007C
X"AFB3006C", -- 00000080
X"AFB10064", -- 00000084
X"AEC00000", -- 00000088
X"3450AAAA", -- 0000008C
X"347786A0", -- 00000090
X"27B20010", -- 00000094
X"24150014", -- 00000098
X"3474869F", -- 0000009C
X"00009821", -- 000000A0
X"00002021", -- 000000A4
X"02401021", -- 000000A8
X"24060013", -- 000000AC
X"24C6FFFF", -- 000000B0
X"AC500000", -- 000000B4
X"04C1FFFD", -- 000000B8
X"24420004", -- 000000BC
X"02041026", -- 000000C0
X"24910001", -- 000000C4
X"24420001", -- 000000C8
X"02202821", -- 000000CC
X"27A60010", -- 000000D0
X"24070014", -- 000000D4
X"0C100003", -- 000000D8
X"00028040", -- 000000DC
X"24070002", -- 000000E0
X"26450008", -- 000000E4
X"0810003E", -- 000000E8
X"24060011", -- 000000EC
X"04C0000A", -- 000000F0
X"00000000", -- 000000F4
X"8CA20000", -- 000000F8
X"8CA3FFFC", -- 000000FC
X"8CA4FFF8", -- 00000100
X"00431023", -- 00000104
X"24C6FFFF", -- 00000108
X"1482FFF8", -- 0000010C
X"24A50004", -- 00000110
X"04C1FFF8", -- 00000114
X"24E70001", -- 00000118
X"10F5000C", -- 0000011C
X"00000000", -- 00000120
X"0291102A", -- 00000124
X"1040FFDF", -- 00000128
X"02202021", -- 0000012C
X"1677FFDB", -- 00000130
X"00009821", -- 00000134
X"8EC20000", -- 00000138
X"00000000", -- 0000013C
X"24420001", -- 00000140
X"AEC20000", -- 00000144
X"0810002A", -- 00000148
X"00002021", -- 0000014C
X"08100049", -- 00000150
X"26730001", -- 00000154
X"00000000", -- 00000158
X"00000000", -- 0000015C
X"00000000", -- 00000160
X"00000000", -- 00000164
X"00000000", -- 00000168
X"00000000", -- 0000016C
X"00000000", -- 00000170
X"00000000", -- 00000174
X"00000000", -- 00000178
X"00000000", -- 0000017C
X"00000000", -- 00000180
X"00000000", -- 00000184
X"00000000", -- 00000188
X"00000000", -- 0000018C
X"00000000", -- 00000190
X"00000000", -- 00000194
X"00000000", -- 00000198
X"00000000", -- 0000019C
X"00000000", -- 000001A0
X"00000000", -- 000001A4
X"00000000", -- 000001A8
X"00000000", -- 000001AC
X"00000000", -- 000001B0
X"00000000", -- 000001B4
X"00000000", -- 000001B8
X"00000000", -- 000001BC
X"00000000", -- 000001C0
X"00000000", -- 000001C4
X"00000000", -- 000001C8
X"00000000", -- 000001CC
X"00000000", -- 000001D0
X"00000000", -- 000001D4
X"00000000", -- 000001D8
X"00000000", -- 000001DC
X"00000000", -- 000001E0
X"00000000", -- 000001E4
X"00000000", -- 000001E8
X"00000000", -- 000001EC
X"00000000", -- 000001F0
X"00000000", -- 000001F4
X"00000000", -- 000001F8
X"00000000", -- 000001FC
X"00000000", -- 00000200
X"00000000", -- 00000204
X"00000000", -- 00000208
X"00000000", -- 0000020C
X"00000000", -- 00000210
X"00000000", -- 00000214
X"00000000", -- 00000218
X"00000000", -- 0000021C
X"00000000", -- 00000220
X"00000000", -- 00000224
X"00000000", -- 00000228
X"00000000", -- 0000022C
X"00000000", -- 00000230
X"00000000", -- 00000234
X"00000000", -- 00000238
X"00000000", -- 0000023C
X"00000000", -- 00000240
X"00000000", -- 00000244
X"00000000", -- 00000248
X"00000000", -- 0000024C
X"00000000", -- 00000250
X"00000000", -- 00000254
X"00000000", -- 00000258
X"00000000", -- 0000025C
X"00000000", -- 00000260
X"00000000", -- 00000264
X"00000000", -- 00000268
X"00000000", -- 0000026C
X"00000000", -- 00000270
X"00000000", -- 00000274
X"00000000", -- 00000278
X"00000000", -- 0000027C
X"00000000", -- 00000280
X"00000000", -- 00000284
X"00000000", -- 00000288
X"00000000", -- 0000028C
X"00000000", -- 00000290
X"00000000", -- 00000294
X"00000000", -- 00000298
X"00000000", -- 0000029C
X"00000000", -- 000002A0
X"00000000", -- 000002A4
X"00000000", -- 000002A8
X"00000000", -- 000002AC
X"00000000", -- 000002B0
X"00000000", -- 000002B4
X"00000000", -- 000002B8
X"00000000", -- 000002BC
X"00000000", -- 000002C0
X"00000000", -- 000002C4
X"00000000", -- 000002C8
X"00000000", -- 000002CC
X"00000000", -- 000002D0
X"00000000", -- 000002D4
X"00000000", -- 000002D8
X"00000000", -- 000002DC
X"00000000", -- 000002E0
X"00000000", -- 000002E4
X"00000000", -- 000002E8
X"00000000", -- 000002EC
X"00000000", -- 000002F0
X"00000000", -- 000002F4
X"00000000", -- 000002F8
X"00000000", -- 000002FC
X"00000000", -- 00000300
X"00000000", -- 00000304
X"00000000", -- 00000308
X"00000000", -- 0000030C
X"00000000", -- 00000310
X"00000000", -- 00000314
X"00000000", -- 00000318
X"00000000", -- 0000031C
X"00000000", -- 00000320
X"00000000", -- 00000324
X"00000000", -- 00000328
X"00000000", -- 0000032C
X"00000000", -- 00000330
X"00000000", -- 00000334
X"00000000", -- 00000338
X"00000000", -- 0000033C
X"00000000", -- 00000340
X"00000000", -- 00000344
X"00000000", -- 00000348
X"00000000", -- 0000034C
X"00000000", -- 00000350
X"00000000", -- 00000354
X"00000000", -- 00000358
X"00000000", -- 0000035C
X"00000000", -- 00000360
X"00000000", -- 00000364
X"00000000", -- 00000368
X"00000000", -- 0000036C
X"00000000", -- 00000370
X"00000000", -- 00000374
X"00000000", -- 00000378
X"00000000", -- 0000037C
X"00000000", -- 00000380
X"00000000", -- 00000384
X"00000000", -- 00000388
X"00000000", -- 0000038C
X"00000000", -- 00000390
X"00000000", -- 00000394
X"00000000", -- 00000398
X"00000000", -- 0000039C
X"00000000", -- 000003A0
X"00000000", -- 000003A4
X"00000000", -- 000003A8
X"00000000", -- 000003AC
X"00000000", -- 000003B0
X"00000000", -- 000003B4
X"00000000", -- 000003B8
X"00000000", -- 000003BC
X"00000000", -- 000003C0
X"00000000", -- 000003C4
X"00000000", -- 000003C8
X"00000000", -- 000003CC
X"00000000", -- 000003D0
X"00000000", -- 000003D4
X"00000000", -- 000003D8
X"00000000", -- 000003DC
X"00000000", -- 000003E0
X"00000000", -- 000003E4
X"00000000", -- 000003E8
X"00000000", -- 000003EC
X"00000000", -- 000003F0
X"00000000", -- 000003F4
X"00000000", -- 000003F8
X"00000000" -- 000003FC
);
begin
PROM_READ:
process(clk)
begin
if rising_edge(clk) then
dout <= word_array(to_integer(addr));
end if;
end process;
end itest;
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