Thomas Harte
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ecfd17a259
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Report a 1 in the stack pointer high byte when in emulation mode.
It has one internally, it just wasn't previously exposed via this method.
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2022-06-22 15:55:34 -04:00 |
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Thomas Harte
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d3c7253981
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Shifts size-limiting of X and Y to transitions and mutations, away from reads.
Primarily to remove potential bug-causing complexity — this is easier to debug. But let's see.
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2020-11-04 20:35:41 -05:00 |
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Thomas Harte
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3889646d6b
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Takes a swing at incorporating krom's 65816 test suite. At least as far as ADC.
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2020-11-02 21:09:32 -05:00 |
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Thomas Harte
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9c0c0255f6
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Ensures data/program bank can't accidentally be set to 16-bit values.
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2020-10-15 21:10:32 -04:00 |
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Thomas Harte
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c0a1c34012
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Wraps all registers into a struct, so that I can implement abort.
Makes some preparations for ready too.
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2020-10-15 18:42:38 -04:00 |
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Thomas Harte
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b22aa5d699
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Starts transcribing the addressing examples I have into tests.
Correspondingly extends the exposed register set and test-machine addressing range.
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2020-10-13 21:38:30 -04:00 |
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Thomas Harte
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ae87728770
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Ensures M and X are exposed to the public interface.
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2020-10-10 21:33:56 -04:00 |
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Thomas Harte
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f7b119ffe1
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Moves temporary logging, fixes branch instructions.
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2020-10-07 19:57:58 -04:00 |
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Thomas Harte
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b83d93abc2
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Accepts that whether instructions do 8- or 16-bit bus accesses depends on either M or X depending on the operation.
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2020-10-02 17:08:30 -04:00 |
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Thomas Harte
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78b3ec4b10
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The actual work begins: starts implementing 65816 micro-ops.
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2020-09-29 18:42:07 -04:00 |
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Thomas Harte
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ef1a514785
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Introduces 6502Selector, for picking either a 6502 or a 65816 based on a single template parameter.
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2020-09-28 21:35:46 -04:00 |
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