mirror of https://github.com/mgcaret/rom4x.git
26 lines
850 B
Plaintext
26 lines
850 B
Plaintext
MIG space references in ROM:
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CE00-CE1F - MIG RAM window
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CE20 - Increment page
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CE3D-CE3E - ?
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CE40 - write in E4D9,E503,E612,EF02
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read in 8E9C,E9A3,E9EB,EA15,EA2D,EA40,EE87,
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always around slot 6 I/O accesses.
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CE60 - read in routine at E4C7,E8C5,E974,EA6B,EE95
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write in routine at E4F2,E612,E652,EF02,EFC6,F54C
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always around slot 6 I/O accesses.
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CEA0 - Reset page 0
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CECD - ? from data
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CED5 - ? from data
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CF9A - ? from bank switch @C746 prob calling main bannk
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CFCF - ? from data
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CFFF - leftover from non //c ROM
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MIG page usage:
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Page 0 - 3.5 ROM - routines at CA12, E51D
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CE11 - slot I/O offset of ? (ldy CE11, lda C000,y in routine at CA12)
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Page 1 - used by routines at CA71,E54F,E534
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Page 2 - Appears used only by accelerator code
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Page 3 - used by routines at CA4B, CA71, E1E1, EB8B, ECCF
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Page 4+ - used all over the place
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