急求找错误

ggzgjy

我的下面代码哪里错了呢？存储器读的功能没有实现啊！急着用，帮忙看看吧，谢谢了！

1. module multi_modular_ram(data1,data2,read,write,addr);
   
2. input read,write;
   
3. parameter addr_bits=8,wordsize=8,words=(1<<addr_bits);
   
4. input[8:0] addr;
   
5. inout[7:0] data1,data2;
   
6. reg[7:0] data1,data2;
   
7. reg[7:0] myram1 [0:255];
   
8. reg[7:0] myram2 [0:255];
   
9. wire[7:0] addre1,addre2;
   
10. initial
    
11. begin
    
12. 
    
13. $readmemb("ram_data.txt",myram1);
    
14. 
    
15. $readmemb("ram_data.txt",myram2);
    
16. end
    
17. assign  addre1=addr[7:0];
    
18. assign  addre2=addre1+1'b1;
    
19. always @(read)
    
20. begin
    
21. 
    
22. 
    
23. if(addr[8]==1)
    
24. 
    
25. begin
    
26. 
    
27. data1=read?myram2[addre1]:8'bz;
    
28. 
    
29. data2=read?myram2[addre2]:8'bz;
    
30. 
    
31. end
    
32. 
    
33. else if(addr[8]==0)
    
34. 
    
35. begin
    
36. 
    
37. data1=read?myram1[addre1]:8'bz;
    
38. 
    
39. data2=read?myram1[addre2]:8'bz;
    
40. 
    
41. end
    
42. end
    
43. 
    
44. always @(posedge write)
    
45. 
    
46. begin
    
47. if(addr[8]==1)
    
48. 
    
49. begin
    
50. 
    
51. myram2[addre1]=data1;
    
52. 
    
53. myram2[addre2]=data2;
    
54. 
    
55. end
    
56. 
    
57. else if(addr[8]==0)
    
58. 
    
59. begin
    
60. 
    
61. myram1[addre1]=data1;
    
62. 
    
63. myram1[addre2]=data2;
    
64. 
    
65. end
    
66. 
    
67. end
    
68. endmodule
    

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