mirror of https://github.com/ctm/syn68k.git
17 lines
930 B
Plaintext
17 lines
930 B
Plaintext
1) CC bits may not be valid during an interrupt
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2) We don't support supervisor mode properly
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a) We have only one SP (no MSP, ISP, USP)
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b) You cannot leave supervisor mode
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3) The interrupt stack space is in a static array which may not look
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like a valid address from the Mac's point of view.
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4) Interrupt/trap handlers we write are responsible for performing their
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own RTE.
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5) Flushing the cache during an interrupt can have bad effects; the compiled
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code being interpreted would get destroyed, and on return back to the
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compiled code bad things would happen.
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6) Expanding multiple CC variants of the same opcode won't work properly.
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It will only expand the piecewise intersections of the specified addressing
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modes. Instead, it should go through and do all the intersections, and then
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run through each variant's expansion pattern with "----------------" as the
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expansion pattern for all other variants.
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