| Line 123... |
Line 123... |
fake_mem[34] = LDA_ABX; // testing ABX mode, READ TYPE. Page crossed.
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fake_mem[34] = LDA_ABX; // testing ABX mode, READ TYPE. Page crossed.
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fake_mem[35] = 8'hff;
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fake_mem[35] = 8'hff;
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fake_mem[36] = 8'h00;
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fake_mem[36] = 8'h00;
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fake_mem[37] = ASL_ABX; // testing ABX mode, READ_MODIFY_WRITE TYPE. No page crossed.
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fake_mem[37] = ASL_ABX; // testing ABX mode, READ_MODIFY_WRITE TYPE. No page crossed.
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fake_mem[38] = 8'h01;
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fake_mem[38] = 8'h01;
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fake_mem[39] = 8'h00;
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fake_mem[39] = 8'd35;
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fake_mem[40] = ASL_ABX; // testing ABX mode, READ_MODIFY_WRITE TYPE. Page crossed.
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fake_mem[40] = ASL_ABX; // testing ABX mode, READ_MODIFY_WRITE TYPE. Page crossed.
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fake_mem[41] = 8'hff;
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fake_mem[41] = 8'hff;
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fake_mem[42] = 8'h00;
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fake_mem[42] = 8'h00;
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fake_mem[40] = STA_ABX; // testing ABX mode, WRITE TYPE. No page crossed.
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fake_mem[40] = STA_ABX; // testing ABX mode, WRITE TYPE. No page crossed.
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fake_mem[41] = 8'h04;
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fake_mem[41] = 8'h04;
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| Line 137... |
Line 137... |
fake_mem[45] = 8'h00;
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fake_mem[45] = 8'h00;
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fake_mem[46] = BNE_REL; // testing REL mode, taking a branch, no page crossed.
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fake_mem[46] = BNE_REL; // testing REL mode, taking a branch, no page crossed.
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fake_mem[47] = 8'h0a;
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fake_mem[47] = 8'h0a;
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fake_mem[58] = BNE_REL; // testing REL mode, taking a branch, page crossed.
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fake_mem[58] = BNE_REL; // testing REL mode, taking a branch, page crossed.
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fake_mem[59] = 8'hff;
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fake_mem[59] = 8'hff;
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fake_mem[254] = 8'hff;
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fake_mem[255] = 8'h11;
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fake_mem[315] = BEQ_REL; // testing REL mode, not taking a branch, page would have crossed.
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fake_mem[315] = BEQ_REL; // testing REL mode, not taking a branch, page would have crossed.
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fake_mem[316] = 8'hff;
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fake_mem[316] = 8'hff;
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fake_mem[317] = BEQ_REL; // testing REL mode, not taking a branch, page would not have crossed.
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fake_mem[317] = BEQ_REL; // testing REL mode, not taking a branch, page would not have crossed.
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fake_mem[318] = 8'h00;
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fake_mem[318] = 8'h00;
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fake_mem[319] = LDA_IDX; // testing IDX mode READ TYPE, no page crossed;
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fake_mem[319] = LDA_IDX; // testing IDX mode READ TYPE, no page crossed;
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| Line 150... |
Line 152... |
//fake_mem[319] = SLO_IDX; // testing IDX mode READ_MODIFY_WRITE TYPE
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//fake_mem[319] = SLO_IDX; // testing IDX mode READ_MODIFY_WRITE TYPE
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//fake_mem[320] = 8'h0a; // all of read modify write instructions are not documented therefore will not be simulated
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//fake_mem[320] = 8'h0a; // all of read modify write instructions are not documented therefore will not be simulated
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fake_mem[323] = STA_IDX; // testing IDX mode WRITE TYPE, page crossed being ignored
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fake_mem[323] = STA_IDX; // testing IDX mode WRITE TYPE, page crossed being ignored
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fake_mem[324] = 8'hff;
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fake_mem[324] = 8'hff;
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fake_mem[325] = STA_IDX; // testing IDX mode WRITE TYPE, page not crossed;
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fake_mem[325] = STA_IDX; // testing IDX mode WRITE TYPE, page not crossed;
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fake_mem[326] = 8'hff;
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fake_mem[326] = 8'h00;
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//fake_mem[321] = LDA_IDX; // testing IDX mode READ TYPE, page crossed;
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fake_mem[327] = LDA_IDY; // testing IDY mode READ TYPE, page not crossed;
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//fake_mem[322] = 8'hff;
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fake_mem[328] = 8'h00;
|
|
fake_mem[329] = LDA_IDY; // testing IDY mode READ TYPE, page not crossed but pointer overflowed.
|
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fake_mem[330] = 8'hff;
|
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/* testing IDY mode READ TYPE, page crossed.
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|
address may assume a invalid value when page is crossed but it is fixed on the next cycle when the true read occurs.
|
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this is probably not an issue */
|
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fake_mem[331] = LDA_IDY;
|
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fake_mem[332] = 8'hfe;
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// FALTOU O WRITE INDIRETO Y!
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@(negedge clk) // will wait for next negative edge of the clock (t=20)
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@(negedge clk) // will wait for next negative edge of the clock (t=20)
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reset_n=1'b1;
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reset_n=1'b1;
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|
|
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#3000;
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#3000;
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