| Line 139... |
Line 139... |
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[60] = 8'hff;
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fake_mem[254] = 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[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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| Line 164... |
Line 165... |
/* testing IDY mode READ TYPE, page crossed.
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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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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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this is probably not an issue */
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fake_mem[331] = LDA_IDY;
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fake_mem[331] = LDA_IDY;
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fake_mem[332] = 8'hfe;
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fake_mem[332] = 8'hfe;
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fake_mem[333] = STA_IDY;
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fake_mem[333] = STA_IDY; // testing IDY mode WRITE TYPE, page crossed;
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fake_mem[334] = 8'h00; // testing IDY mode WRITE TYPE, page not crossed;
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fake_mem[334] = 8'h00;
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fake_mem[335] = STA_IDY; // testing IDY mode WRITE TYPE, page not crossed;
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fake_mem[336] = 8'h0e;
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fake_mem[337] = JMP_IND; // testing absolute indirect addressing. page crossed when updating pointer.
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fake_mem[338] = 8'hff;
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fake_mem[339] = 8'h00;
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//fake_mem[337] = JMP_IND; // testing absolute indirect addressing. no page crossed when updating pointer.
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//fake_mem[338] = 8'h3b;
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//fake_mem[339] = 8'h00;
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