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68000 backend #2

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SamuraiCrow opened this issue Jan 6, 2020 · 4 comments
Closed

68000 backend #2

SamuraiCrow opened this issue Jan 6, 2020 · 4 comments
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duplicate This issue or pull request already exists enhancement New feature or request

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@SamuraiCrow
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Modify 68020 backend to not emit 68020 addressing modes or opcodes for 68000 support
@SamuraiCrow SamuraiCrow added enhancement New feature or request good first issue Good for newcomers labels Jan 6, 2020
@SamuraiCrow SamuraiCrow removed the good first issue Good for newcomers label Feb 1, 2020
@SamuraiCrow
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Issues #5 and #6 should be considered prerequisites for this one.

@SamuraiCrow
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Due to a microcode bug on the flat 68000, the CLR opcode doesn't work right on data registers. Substitution of EOR using the same data register as source and destination is a drop-in substitute.

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The array lookup may be the only internal usage of a 68020 operation presently.

@SamuraiCrow SamuraiCrow mentioned this issue Jan 26, 2023
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Superceded by #26 .

@SamuraiCrow SamuraiCrow added the duplicate This issue or pull request already exists label Jan 26, 2023
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