?I???W?i??CPU?uDL166?v?̃??W?X?^??LED?h?b?g?}?g???b?N?X?Ō????鉻?????F?I???W?i??CPU?Ńo?C?i???R?[?h????i6?j?i1/3 ?y?[?W?j

?͂??߂?

?@????̍?Ƃł́A?I???W?i??CPU?uDL166?v?̃??W?X?^??LED?h?b?g?}?g???N?X?Ō?????悤?ɂ??܂??BLED?h?b?g?}?g???b?N?X?́A?A?ڑ?4??L???ŁuTang Nano 9K?i?ȉ??ATang Nano?j?v?̊??ɂ͂񂾕t??????8?~8??LED?h?b?g?}?g???N?X???g???܂??BDL166??8?‚̃??W?X?^?̓h?b?g?}?g???N?X?ɕ\?????܂????Ac_flag?ɂ‚??ẮATang Nano?̊?‚ɓ??ڂ???Ă???6?‚̃I?????W?F??LED?̒?????1?‚??g???܂??B

?@DL166??Tang Nano?ɈڐA?????O??L???ł́AVerilog-HDL?̃\?[?X?R?[?h?́Acpu?Aram?i???????j?Atestbench?Ƃ???3?‚̃??W???[???ɕ?????Ă??܂????B???ł??Atestbench?͑???FPGA?{?[?h?Ƀ|?[?e?B???O???ɑ傫?Ȗ??????ʂ????܂??B????testbench???Ƀv???b?g?t?H?[???ł???Tang Nano?Ɉˑ?????R?[?h?????߂Ă??܂??܂??B???̂悤?ɂ??Ă????΁A???̃v???b?g?t?H?[???ɑւ????ꍇ???A???̃??W???[???݂̂Ɏ????????΂悢???ƂɂȂ?܂??B

?@?e???W???[???͓???̖?????????????悤?ɐ݌v????Ă??܂??B?@?\??lj????????͕ύX????ꍇ?A???̃??W???[???݂̂ɕύX????????΂悢???ƂɂȂ?܂??B?c?c?Ƃ????悤?ɁA???W???[???????????Ɏ{???Ă????΁A?ǂ݂₷???R?[?h?ɂȂ?܂????????e?i???X?????????܂??B

?@?ǂ????Ƃ????߂Ǝv???郂?W???[???????Ȃ̂ł????A????̂悤??CPU?̃??W?X?^?̒??g?????????Ƃ????p?r?ɂ͏????l??????K?v??????܂??B???W???[???????́A???ꂼ??̃??W???[???̓Ɨ??????d?񂶂锭?z?ł??B???W???[???ŊǗ?????ϐ??Ȃǂ̃??\?[?X?́A????????ĂłȂ??Ƃ??Ƃ?ł??܂???B????̂悤?ɁADL166?̃??W?X?^?Q??LED?h?b?g?}?g???N?X?Ō????鉻????Ƃ????e?[?}?ł͂??????ăR?[?h???ώG?ɂȂ?܂??B

?@?????????S?̂????G?ɂȂ?΃??W???[???????郁???b?g??????ł??傤???A?{?e???M????1?‚̃??W???[???ɓ????????Ƃ??Ă?50?s???x???????̂ŁA?S?̂????n????͈͂??ƍl???A???̕??j??DL166???ēx?R?[?f?B???O???邱?Ƃɂ??܂????B??????????Ƌ@?\???lj?????āA1?‚̃??W???[???ł̓R?[?h?̌??ʂ????????Ȃ??ĉ“ǐ???ێ琫?𑹂Ȃ??悤?ł???Ε????̃??W???[???ɕ??????邩??????܂???B?????_?ł͎?肠?????葁?????삷????̂?????Ă݂āA?t?B?[?h?o?b?N?Ɖ??P?̃C?e???[?V?????𑬂??񂷂??Ƃ?D?悳???܂????B

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3?‚̃??W???[????1?‚ɓ???

?@?O??L???܂ŁAcpu?Aram?Atestbench?Ƃ???3?‚̃??W???[???ɕ???????Ă??܂??????A????͂?????cpu???W???[???ɓ??????܂????B???̃????b?g??2?‚???܂??B1?‚́Acpu???W???[???????ł????????Ȃ?????regs?̒l??c_flag?̒l?????W???[?????̂ǂ?????ł??Q?Ƃł???悤?ɂȂ??????Ƃł??B????1?‚́A???܂ŕʃ??W???[???ł????????????̓??e?ɂ‚??Ă??AC????ł????Ƃ???̔z??̓Y?????ŃA?N?Z?X?ł???悤?ɂȂ??????Ƃł??B

?@????ł͑????\?[?X?R?[?h?????Ă????܂??傤?B ?ȉ??????X?g1??cpu???W???[????1?`10?s?ڂł??B

1:module cpu(input rst,input clk,
2:    input[3:0] btn,
3:    output [7:0]col, output [7:0]row,
4:    output [5:0]leds);
5:
6:  wire [7:0]dout;
7:	reg c_flag;
8:	reg [3:0]regs[7:0];
9:  reg [7:0]ram[15:0];
10: reg [23:0] counter;

?@1?`4?s?ڂ́A???W???[??????cpu?Ƃ??̃??W???[???̊O???Ƃ??Ƃ肷????o?͂??`???Ă??܂??B

?@1?s?ڂ?rst??clk?͂??????1?r?b?g???̓??͂Ƃ??Ē?`????Ă??܂????A?ȑO??cpu?ł???`????Ă??????̂ł??̂Ő????͏Ȃ??܂??B2?s?ڂ?4?r?b?g????btn?ł??B?{????4?‚̃^?N?g?X?C?b?`???邢?̓f?B?b?v?X?C?b?`??z?肵?Ă???̂ł????ATang Nano?̊?‚ɂ͂????ɑ?????????͂͗p?ӂ???Ă??Ȃ??̂ŁA????͖??ڑ??Ŏg?p???Ă??܂??B??????ǂݏo????4?r?b?g?Ƃ?1???Ԃ??Ă??܂??B3?s?ڂ?col??row?͂??????8?r?b?g???̏o?͂Ƃ??Ē?`???Ă??܂??B????????ALED?h?b?g?}?g???N?X?̋L???Ő??????Ă???Ǝv???܂??̂Ő????͏Ȃ??܂??B4?s?ڂ?6?r?b?g????leds?́ATang Nano?̊???6?•??񂾃I?????W?F??LED?ɐڑ????邱?Ƃ?z?肵?Ă??܂??i?}1?j?B

?}1?@?uTang Nano?v?̃s???z?u??LED?A???Z?b?g?{?^???̈ʒu?m?N???b?N?Ŋg??n

?@6?s?ڂ?8?r?b?g????dout?́A?t?F?b?`???ꂽ???߃Z?b?g???Z?b?g????܂??B7?s?ڂ?c_flag?́A1?r?b?g???̃L?????[?t???O???i?[????܂??B8?s?ڂł́ACPU?????삷??4?r?b?g????8?‚̃??W?X?^?̒l???i?[????܂??B9?s?ڂł́A???܂ŊO?????????Ƃ??ėp???Ă?ram???W???[????cpu??????8?r?b?g?~16?̃??W?X?^?Ƃ??Ē?`???Ă??܂??B10?s?ڂ?24?r?b?g????counter?́A?N???b?N?̕????Ȃǂŗp?????܂??B11?s?ڂ?3?r?b?g????i?́Acounter??13?`15?r?b?g?ڂ?3?r?b?g?ɃA?T?C??????Ă??܂??B