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Internal operating system usage. This call is used to allocate all I/O type handles. The handle type and structure is documented in handle.def file.
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IN: A = FN_AH ($01) B = handle type B = 0, returns the first free handle, does not allocate it properly OUT, if successful: Fc = 0, IX = handle OUT, if failed: Fc = 1, A = RC_ROOM Registers changed after return: ..BCDEHL/..IY same AF....../IX.. different |
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IN: A = FN_VH ($02) B = handle type IX = handle OUT, if successful: Fc = 0 OUT, if failed Fc = 1, A = RC_ROOM Registers changed after return: ..BCDEHL/IXIY same AF....../.... different |
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IN: A = FN_GH ($04) IX = first handle to test, 0 to begin with top handle B = handle type, 0 for any type C = dyn id, 0 tofor bypassany thedyn checkid OUT, if successful: Fc = 0, IX = handle OUT, if failed: Fc = 1, A = RC_EOF Registers changed after return: ..BCDEHL/..IY same AF....../IX.. different |
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IN: A = FN_CH ($05) B = old type C = new type IX = handle OUT, if successful: Fc = 0, IX = same handle OUT, if failed: Fc = 1, A = RC_Hand (old type wrong) Registers changed after return: A.BCDEHL/IXIY same .F....../.... different |
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