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inx/dey supported.
[motonesfpga/motonesfpga.git]
/
simulation
/
cpu
/
mos6502.vhd
2013-06-13
astoria-d
inx/dey supported.
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2013-06-13
astoria-d
status register reworked to support 2 cycle instructions.
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2013-06-12
astoria-d
- exec cycle moved out from decoder.
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2013-06-11
astoria-d
remove clk from ea circuit.
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2013-06-11
astoria-d
code refactored.
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2013-06-11
astoria-d
code clean up.
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2013-06-11
astoria-d
code clean up
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2013-06-11
astoria-d
effective address working.
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2013-06-10
astoria-d
abs, x working.
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2013-06-10
astoria-d
abs, x effective address calucation working...
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2013-06-09
astoria-d
- added data latch. now latch has two instances,
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2013-06-09
astoria-d
- accumulator added.
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2013-06-09
astoria-d
debug util updated.
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2013-06-08
astoria-d
- stack push ok.
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2013-06-07
astoria-d
minor update
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2013-06-07
astoria-d
removed not used pin in the data bus buffer.
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2013-06-07
astoria-d
cpu to memory write ok.
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2013-06-07
astoria-d
added tri-state buffer at the address output gate.
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2013-06-07
astoria-d
push stack supported.
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2013-06-06
astoria-d
jmp and abs addressing working.
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2013-06-05
astoria-d
status register improved.
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2013-06-05
astoria-d
status register integrated into cpu.
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2013-06-04
astoria-d
status register work started.
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2013-06-03
astoria-d
pc increment page boundary bug fixed.
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2013-06-03
astoria-d
- stack pointer added.
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2013-06-03
astoria-d
code clean up.
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2013-06-03
astoria-d
- input data latch added.
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2013-06-02
astoria-d
x/y reg update timing changed.
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2013-06-02
astoria-d
ldx immediate ok.
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2013-06-02
astoria-d
code resutructure update
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2013-05-31
astoria-d
pc update timing fixed.
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2013-05-28
astoria-d
instruction decoder working....
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2013-05-28
astoria-d
integrated shared io data bus.
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2013-05-27
astoria-d
reset initialize period updated. (still yet to be done)
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2013-05-26
astoria-d
program counter added.
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2013-05-26
astoria-d
mos6502 work start
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2013-05-23
astoria-d
cpu board integrated.
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2013-05-23
astoria-d
added main circuit motones_sim.
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