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[/] [System11/] [trunk/] [rtl/] [vhdl/] [tb_ram.vhd] - Blame information for rev 5

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1 4 dilbert57 
--===========================================================================--
2 
--
3 
-- CPU11 Microprocessor Test Bench 4
4 
--
5 
-- Complete system test
6 
--
7 
-- John Kent 21st October 2002
8 
--
9 
--
10 
-------------------------------------------------------------------------------
11 
library ieee;
12 
   use ieee.std_logic_1164.all;
13 
   use IEEE.STD_LOGIC_ARITH.ALL;
14 
   use IEEE.STD_LOGIC_UNSIGNED.ALL;
15 
   use ieee.numeric_std.all;
16 
 
17 
entity my_ram is
18 
        port (
19 
         clk       : in  std_logic;
20 
    rst       : in  std_logic;
21 
    cs        : in  std_logic;
22 
    rw        : in  std_logic;
23 
    addr      : in  std_logic_vector(5 downto 0);
24 
         data_in   : in  std_logic_vector(7 downto 0);
25 
         data_out  : out std_logic_vector(7 downto 0));
26 
end;
27 
 
28 
 
29 
architecture ram_arch of my_ram is
30 
signal ram_reg00 : std_logic_vector(7 downto 0);
31 
signal ram_reg01 : std_logic_vector(7 downto 0);
32 
signal ram_reg02 : std_logic_vector(7 downto 0);
33 
signal ram_reg03 : std_logic_vector(7 downto 0);
34 
signal ram_reg04 : std_logic_vector(7 downto 0);
35 
signal ram_reg05 : std_logic_vector(7 downto 0);
36 
signal ram_reg06 : std_logic_vector(7 downto 0);
37 
signal ram_reg07 : std_logic_vector(7 downto 0);
38 
signal ram_reg08 : std_logic_vector(7 downto 0);
39 
signal ram_reg09 : std_logic_vector(7 downto 0);
40 
signal ram_reg010 : std_logic_vector(7 downto 0);
41 
signal ram_reg011 : std_logic_vector(7 downto 0);
42 
signal ram_reg012 : std_logic_vector(7 downto 0);
43 
signal ram_reg013 : std_logic_vector(7 downto 0);
44 
signal ram_reg014 : std_logic_vector(7 downto 0);
45 
signal ram_reg015 : std_logic_vector(7 downto 0);
46 
signal ram_reg10 : std_logic_vector(7 downto 0);
47 
signal ram_reg11 : std_logic_vector(7 downto 0);
48 
signal ram_reg12 : std_logic_vector(7 downto 0);
49 
signal ram_reg13 : std_logic_vector(7 downto 0);
50 
signal ram_reg14 : std_logic_vector(7 downto 0);
51 
signal ram_reg15 : std_logic_vector(7 downto 0);
52 
signal ram_reg16 : std_logic_vector(7 downto 0);
53 
signal ram_reg17 : std_logic_vector(7 downto 0);
54 
signal ram_reg18 : std_logic_vector(7 downto 0);
55 
signal ram_reg19 : std_logic_vector(7 downto 0);
56 
signal ram_reg110 : std_logic_vector(7 downto 0);
57 
signal ram_reg111 : std_logic_vector(7 downto 0);
58 
signal ram_reg112 : std_logic_vector(7 downto 0);
59 
signal ram_reg113 : std_logic_vector(7 downto 0);
60 
signal ram_reg114 : std_logic_vector(7 downto 0);
61 
signal ram_reg115 : std_logic_vector(7 downto 0);
62 
signal ram_reg20 : std_logic_vector(7 downto 0);
63 
signal ram_reg21 : std_logic_vector(7 downto 0);
64 
signal ram_reg22 : std_logic_vector(7 downto 0);
65 
signal ram_reg23 : std_logic_vector(7 downto 0);
66 
signal ram_reg24 : std_logic_vector(7 downto 0);
67 
signal ram_reg25 : std_logic_vector(7 downto 0);
68 
signal ram_reg26 : std_logic_vector(7 downto 0);
69 
signal ram_reg27 : std_logic_vector(7 downto 0);
70 
signal ram_reg28 : std_logic_vector(7 downto 0);
71 
signal ram_reg29 : std_logic_vector(7 downto 0);
72 
signal ram_reg210 : std_logic_vector(7 downto 0);
73 
signal ram_reg211 : std_logic_vector(7 downto 0);
74 
signal ram_reg212 : std_logic_vector(7 downto 0);
75 
signal ram_reg213 : std_logic_vector(7 downto 0);
76 
signal ram_reg214 : std_logic_vector(7 downto 0);
77 
signal ram_reg215 : std_logic_vector(7 downto 0);
78 
signal ram_reg30 : std_logic_vector(7 downto 0);
79 
signal ram_reg31 : std_logic_vector(7 downto 0);
80 
signal ram_reg32 : std_logic_vector(7 downto 0);
81 
signal ram_reg33 : std_logic_vector(7 downto 0);
82 
signal ram_reg34 : std_logic_vector(7 downto 0);
83 
signal ram_reg35 : std_logic_vector(7 downto 0);
84 
signal ram_reg36 : std_logic_vector(7 downto 0);
85 
signal ram_reg37 : std_logic_vector(7 downto 0);
86 
signal ram_reg38 : std_logic_vector(7 downto 0);
87 
signal ram_reg39 : std_logic_vector(7 downto 0);
88 
signal ram_reg310 : std_logic_vector(7 downto 0);
89 
signal ram_reg311 : std_logic_vector(7 downto 0);
90 
signal ram_reg312 : std_logic_vector(7 downto 0);
91 
signal ram_reg313 : std_logic_vector(7 downto 0);
92 
signal ram_reg314 : std_logic_vector(7 downto 0);
93 
signal ram_reg315 : std_logic_vector(7 downto 0);
94 
 
95 
begin
96 
 
97 
 
98 
---------------------------------
99 
--
100 
-- Write DAT RAM
101 
--
102 
---------------------------------
103 
 
104 
ram_write : process( clk, rst, addr, cs, rw, data_in )
105 
begin
106 
  if rst = '1' then
107 
      ram_reg00 <= "00000000";
108 
      ram_reg01 <= "00000000";
109 
      ram_reg02 <= "00000000";
110 
      ram_reg03 <= "00000000";
111 
      ram_reg04 <= "00000000";
112 
      ram_reg05 <= "00000000";
113 
      ram_reg06 <= "00000000";
114 
      ram_reg07 <= "00000000";
115 
      ram_reg08 <= "00000000";
116 
      ram_reg09 <= "00000000";
117 
      ram_reg010 <= "00000000";
118 
      ram_reg011 <= "00000000";
119 
      ram_reg012 <= "00000000";
120 
      ram_reg013 <= "00000000";
121 
      ram_reg014 <= "00000000";
122 
      ram_reg015 <= "00000000";
123 
      ram_reg10 <= "00000000";
124 
      ram_reg11 <= "00000000";
125 
      ram_reg12 <= "00000000";
126 
      ram_reg13 <= "00000000";
127 
      ram_reg14 <= "00000000";
128 
      ram_reg15 <= "00000000";
129 
      ram_reg16 <= "00000000";
130 
      ram_reg17 <= "00000000";
131 
      ram_reg18 <= "00000000";
132 
      ram_reg19 <= "00000000";
133 
      ram_reg110 <= "00000000";
134 
      ram_reg111 <= "00000000";
135 
      ram_reg112 <= "00000000";
136 
      ram_reg113 <= "00000000";
137 
      ram_reg114 <= "00000000";
138 
      ram_reg115 <= "00000000";
139 
      ram_reg20 <= "00000000";
140 
      ram_reg21 <= "00000000";
141 
      ram_reg22 <= "00000000";
142 
      ram_reg23 <= "00000000";
143 
      ram_reg24 <= "00000000";
144 
      ram_reg25 <= "00000000";
145 
      ram_reg26 <= "00000000";
146 
      ram_reg27 <= "00000000";
147 
      ram_reg28 <= "00000000";
148 
      ram_reg29 <= "00000000";
149 
      ram_reg210 <= "00000000";
150 
      ram_reg211 <= "00000000";
151 
      ram_reg212 <= "00000000";
152 
      ram_reg213 <= "00000000";
153 
      ram_reg214 <= "00000000";
154 
      ram_reg215 <= "00000000";
155 
      ram_reg30 <= "00000000";
156 
      ram_reg31 <= "00000000";
157 
      ram_reg32 <= "00000000";
158 
      ram_reg33 <= "00000000";
159 
      ram_reg34 <= "00000000";
160 
      ram_reg35 <= "00000000";
161 
      ram_reg36 <= "00000000";
162 
      ram_reg37 <= "00000000";
163 
      ram_reg38 <= "00000000";
164 
      ram_reg39 <= "00000000";
165 
      ram_reg310 <= "00000000";
166 
      ram_reg311 <= "00000000";
167 
      ram_reg312 <= "00000000";
168 
      ram_reg313 <= "00000000";
169 
      ram_reg314 <= "00000000";
170 
      ram_reg315 <= "00000000";
171 
  elsif clk'event and clk = '0' then
172 
           if cs = '1' and rw = '0' then
173 
        case addr is
174 
             when "000000" =>
175 
                    ram_reg00(7 downto 0) <= data_in(7 downto 0);
176 
             when "000001" =>
177 
                    ram_reg01(7 downto 0) <= data_in(7 downto 0);
178 
             when "000010" =>
179 
                    ram_reg02(7 downto 0) <= data_in(7 downto 0);
180 
             when "000011" =>
181 
                    ram_reg03(7 downto 0) <= data_in(7 downto 0);
182 
             when "000100" =>
183 
                    ram_reg04(7 downto 0) <= data_in(7 downto 0);
184 
             when "000101" =>
185 
                    ram_reg05(7 downto 0) <= data_in(7 downto 0);
186 
             when "000110" =>
187 
                    ram_reg06(7 downto 0) <= data_in(7 downto 0);
188 
             when "000111" =>
189 
                    ram_reg07(7 downto 0) <= data_in(7 downto 0);
190 
             when "001000" =>
191 
                    ram_reg08(7 downto 0) <= data_in(7 downto 0);
192 
             when "001001" =>
193 
                    ram_reg09(7 downto 0) <= data_in(7 downto 0);
194 
             when "001010" =>
195 
                    ram_reg010(7 downto 0) <= data_in(7 downto 0);
196 
             when "001011" =>
197 
                    ram_reg011(7 downto 0) <= data_in(7 downto 0);
198 
             when "001100" =>
199 
                    ram_reg012(7 downto 0) <= data_in(7 downto 0);
200 
             when "001101" =>
201 
                    ram_reg013(7 downto 0) <= data_in(7 downto 0);
202 
             when "001110" =>
203 
                    ram_reg014(7 downto 0) <= data_in(7 downto 0);
204 
             when "001111" =>
205 
                    ram_reg015(7 downto 0) <= data_in(7 downto 0);
206 
             when "010000" =>
207 
                    ram_reg10(7 downto 0) <= data_in(7 downto 0);
208 
             when "010001" =>
209 
                    ram_reg11(7 downto 0) <= data_in(7 downto 0);
210 
             when "010010" =>
211 
                    ram_reg12(7 downto 0) <= data_in(7 downto 0);
212 
             when "010011" =>
213 
                    ram_reg13(7 downto 0) <= data_in(7 downto 0);
214 
             when "010100" =>
215 
                    ram_reg14(7 downto 0) <= data_in(7 downto 0);
216 
             when "010101" =>
217 
                    ram_reg15(7 downto 0) <= data_in(7 downto 0);
218 
             when "010110" =>
219 
                    ram_reg16(7 downto 0) <= data_in(7 downto 0);
220 
             when "010111" =>
221 
                    ram_reg17(7 downto 0) <= data_in(7 downto 0);
222 
             when "011000" =>
223 
                    ram_reg18(7 downto 0) <= data_in(7 downto 0);
224 
             when "011001" =>
225 
                    ram_reg19(7 downto 0) <= data_in(7 downto 0);
226 
             when "011010" =>
227 
                    ram_reg110(7 downto 0) <= data_in(7 downto 0);
228 
             when "011011" =>
229 
                    ram_reg111(7 downto 0) <= data_in(7 downto 0);
230 
             when "011100" =>
231 
                    ram_reg112(7 downto 0) <= data_in(7 downto 0);
232 
             when "011101" =>
233 
                    ram_reg113(7 downto 0) <= data_in(7 downto 0);
234 
             when "011110" =>
235 
                    ram_reg114(7 downto 0) <= data_in(7 downto 0);
236 
             when "011111" =>
237 
                    ram_reg115(7 downto 0) <= data_in(7 downto 0);
238 
             when "100000" =>
239 
                    ram_reg20(7 downto 0) <= data_in(7 downto 0);
240 
             when "100001" =>
241 
                    ram_reg21(7 downto 0) <= data_in(7 downto 0);
242 
             when "100010" =>
243 
                    ram_reg22(7 downto 0) <= data_in(7 downto 0);
244 
             when "100011" =>
245 
                    ram_reg23(7 downto 0) <= data_in(7 downto 0);
246 
             when "100100" =>
247 
                    ram_reg24(7 downto 0) <= data_in(7 downto 0);
248 
             when "100101" =>
249 
                    ram_reg25(7 downto 0) <= data_in(7 downto 0);
250 
             when "100110" =>
251 
                    ram_reg26(7 downto 0) <= data_in(7 downto 0);
252 
             when "100111" =>
253 
                    ram_reg27(7 downto 0) <= data_in(7 downto 0);
254 
             when "101000" =>
255 
                    ram_reg28(7 downto 0) <= data_in(7 downto 0);
256 
             when "101001" =>
257 
                    ram_reg29(7 downto 0) <= data_in(7 downto 0);
258 
             when "101010" =>
259 
                    ram_reg210(7 downto 0) <= data_in(7 downto 0);
260 
             when "101011" =>
261 
                    ram_reg211(7 downto 0) <= data_in(7 downto 0);
262 
             when "101100" =>
263 
                    ram_reg212(7 downto 0) <= data_in(7 downto 0);
264 
             when "101101" =>
265 
                    ram_reg213(7 downto 0) <= data_in(7 downto 0);
266 
             when "101110" =>
267 
                    ram_reg214(7 downto 0) <= data_in(7 downto 0);
268 
             when "101111" =>
269 
                    ram_reg215(7 downto 0) <= data_in(7 downto 0);
270 
             when "110000" =>
271 
                    ram_reg30(7 downto 0) <= data_in(7 downto 0);
272 
             when "110001" =>
273 
                    ram_reg31(7 downto 0) <= data_in(7 downto 0);
274 
             when "110010" =>
275 
                    ram_reg32(7 downto 0) <= data_in(7 downto 0);
276 
             when "110011" =>
277 
                    ram_reg33(7 downto 0) <= data_in(7 downto 0);
278 
             when "110100" =>
279 
                    ram_reg34(7 downto 0) <= data_in(7 downto 0);
280 
             when "110101" =>
281 
                    ram_reg35(7 downto 0) <= data_in(7 downto 0);
282 
             when "110110" =>
283 
                    ram_reg36(7 downto 0) <= data_in(7 downto 0);
284 
             when "110111" =>
285 
                    ram_reg37(7 downto 0) <= data_in(7 downto 0);
286 
             when "111000" =>
287 
                    ram_reg38(7 downto 0) <= data_in(7 downto 0);
288 
             when "111001" =>
289 
                    ram_reg39(7 downto 0) <= data_in(7 downto 0);
290 
             when "111010" =>
291 
                    ram_reg310(7 downto 0) <= data_in(7 downto 0);
292 
             when "111011" =>
293 
                    ram_reg311(7 downto 0) <= data_in(7 downto 0);
294 
             when "111100" =>
295 
                    ram_reg312(7 downto 0) <= data_in(7 downto 0);
296 
             when "111101" =>
297 
                    ram_reg313(7 downto 0) <= data_in(7 downto 0);
298 
             when "111110" =>
299 
                    ram_reg314(7 downto 0) <= data_in(7 downto 0);
300 
             when "111111" =>
301 
                    ram_reg315(7 downto 0) <= data_in(7 downto 0);
302 
        when others =>
303 
                    null;
304 
                  end case;
305 
           end if;
306 
  end if;
307 
end process;
308 
 
309 
dat_read : process(  addr,
310 
                     ram_reg00, ram_reg01, ram_reg02, ram_reg03,
311 
                     ram_reg04, ram_reg05, ram_reg06, ram_reg07,
312 
                     ram_reg08, ram_reg09, ram_reg010, ram_reg011,
313 
                     ram_reg012, ram_reg013, ram_reg014, ram_reg015,
314 
                     ram_reg10, ram_reg11, ram_reg12, ram_reg13,
315 
                     ram_reg14, ram_reg15, ram_reg16, ram_reg17,
316 
                     ram_reg18, ram_reg19, ram_reg110, ram_reg111,
317 
                     ram_reg112, ram_reg113, ram_reg114, ram_reg115,
318 
                     ram_reg20, ram_reg21, ram_reg22, ram_reg23,
319 
                     ram_reg24, ram_reg25, ram_reg26, ram_reg27,
320 
                     ram_reg28, ram_reg29, ram_reg210, ram_reg211,
321 
                     ram_reg212, ram_reg213, ram_reg214, ram_reg215,
322 
                     ram_reg30, ram_reg31, ram_reg32, ram_reg33,
323 
                     ram_reg34, ram_reg35, ram_reg36, ram_reg37,
324 
                     ram_reg38, ram_reg39, ram_reg310, ram_reg311,
325 
                     ram_reg312, ram_reg313, ram_reg314, ram_reg315
326 
                                                         )
327 
begin
328 
      case addr is
329 
             when "000000" =>
330 
                    data_out <= ram_reg00;
331 
             when "000001" =>
332 
                    data_out <= ram_reg01;
333 
             when "000010" =>
334 
                    data_out <= ram_reg02;
335 
             when "000011" =>
336 
                    data_out <= ram_reg03;
337 
             when "000100" =>
338 
                    data_out <= ram_reg04;
339 
             when "000101" =>
340 
                    data_out <= ram_reg05;
341 
             when "000110" =>
342 
                    data_out <= ram_reg06;
343 
             when "000111" =>
344 
                    data_out <= ram_reg07;
345 
             when "001000" =>
346 
                    data_out <= ram_reg08;
347 
             when "001001" =>
348 
                    data_out <= ram_reg09;
349 
             when "001010" =>
350 
                    data_out <= ram_reg010;
351 
             when "001011" =>
352 
                    data_out <= ram_reg011;
353 
             when "001100" =>
354 
                    data_out <= ram_reg012;
355 
             when "001101" =>
356 
                    data_out <= ram_reg013;
357 
             when "001110" =>
358 
                    data_out <= ram_reg014;
359 
             when "001111" =>
360 
                    data_out <= ram_reg015;
361 
             when "010000" =>
362 
                    data_out <= ram_reg10;
363 
             when "010001" =>
364 
                    data_out <= ram_reg11;
365 
             when "010010" =>
366 
                    data_out <= ram_reg12;
367 
             when "010011" =>
368 
                    data_out <= ram_reg13;
369 
             when "010100" =>
370 
                    data_out <= ram_reg14;
371 
             when "010101" =>
372 
                    data_out <= ram_reg15;
373 
             when "010110" =>
374 
                    data_out <= ram_reg16;
375 
             when "010111" =>
376 
                    data_out <= ram_reg17;
377 
             when "011000" =>
378 
                    data_out <= ram_reg18;
379 
             when "011001" =>
380 
                    data_out <= ram_reg19;
381 
             when "011010" =>
382 
                    data_out <= ram_reg110;
383 
             when "011011" =>
384 
                    data_out <= ram_reg111;
385 
             when "011100" =>
386 
                    data_out <= ram_reg112;
387 
             when "011101" =>
388 
                    data_out <= ram_reg113;
389 
             when "011110" =>
390 
                    data_out <= ram_reg114;
391 
             when "011111" =>
392 
                    data_out <= ram_reg115;
393 
             when "100000" =>
394 
                    data_out <= ram_reg20;
395 
             when "100001" =>
396 
                    data_out <= ram_reg21;
397 
             when "100010" =>
398 
                    data_out <= ram_reg22;
399 
             when "100011" =>
400 
                    data_out <= ram_reg23;
401 
             when "100100" =>
402 
                    data_out <= ram_reg24;
403 
             when "100101" =>
404 
                    data_out <= ram_reg25;
405 
             when "100110" =>
406 
                    data_out <= ram_reg26;
407 
             when "100111" =>
408 
                    data_out <= ram_reg27;
409 
             when "101000" =>
410 
                    data_out <= ram_reg28;
411 
             when "101001" =>
412 
                    data_out <= ram_reg29;
413 
             when "101010" =>
414 
                    data_out <= ram_reg210;
415 
             when "101011" =>
416 
                    data_out <= ram_reg211;
417 
             when "101100" =>
418 
                    data_out <= ram_reg212;
419 
             when "101101" =>
420 
                    data_out <= ram_reg213;
421 
             when "101110" =>
422 
                    data_out <= ram_reg214;
423 
             when "101111" =>
424 
                    data_out <= ram_reg215;
425 
             when "110000" =>
426 
                    data_out <= ram_reg30;
427 
             when "110001" =>
428 
                    data_out <= ram_reg31;
429 
             when "110010" =>
430 
                    data_out <= ram_reg32;
431 
             when "110011" =>
432 
                    data_out <= ram_reg33;
433 
             when "110100" =>
434 
                    data_out <= ram_reg34;
435 
             when "110101" =>
436 
                    data_out <= ram_reg35;
437 
             when "110110" =>
438 
                    data_out <= ram_reg36;
439 
             when "110111" =>
440 
                    data_out <= ram_reg37;
441 
             when "111000" =>
442 
                    data_out <= ram_reg38;
443 
             when "111001" =>
444 
                    data_out <= ram_reg39;
445 
             when "111010" =>
446 
                    data_out <= ram_reg310;
447 
             when "111011" =>
448 
                    data_out <= ram_reg311;
449 
             when "111100" =>
450 
                    data_out <= ram_reg312;
451 
             when "111101" =>
452 
                    data_out <= ram_reg313;
453 
             when "111110" =>
454 
                    data_out <= ram_reg314;
455 
             when "111111" =>
456 
                    data_out <= ram_reg315;
457 
        when others =>
458 
                    null;
459 
                end case;
460 
end process;
461 
 
462 
end;
463 
 

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