| 1 | unit AddressableArea;
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| 2 |
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| 3 | interface
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| 4 |
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| 5 | uses
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| 6 | Classes, SysUtils;
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| 7 |
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| 8 | type
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| 9 | TAddressableArea1 = class
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| 10 | procedure Write1(Address: Byte; Data: Byte); virtual; abstract;
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| 11 | function Read1(Address: Byte): Byte; virtual; abstract;
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| 12 | end;
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| 13 |
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| 14 | TAddressableArea2 = class
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| 15 | procedure Write1(Address: Word; Data: Byte); virtual; abstract;
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| 16 | procedure Write2(Address: Word; Data: Word); virtual; abstract;
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| 17 | function Read1(Address: Word): Byte; virtual; abstract;
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| 18 | function Read2(Address: Word): Word; virtual; abstract;
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| 19 | end;
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| 20 |
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| 21 | TAddressableArea4 = class
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| 22 | procedure Write1(Address: Cardinal; Data: Byte); virtual; abstract;
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| 23 | procedure Write2(Address: Cardinal; Data: Word); virtual; abstract;
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| 24 | procedure Write4(Address: Cardinal; Data: Cardinal); virtual; abstract;
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| 25 | function Read1(Address: Cardinal): Byte; virtual; abstract;
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| 26 | function Read2(Address: Cardinal): Word; virtual; abstract;
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| 27 | function Read4(Address: Cardinal): Cardinal; virtual; abstract;
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| 28 | end;
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| 29 |
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| 30 | TAddressableArea8 = class
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| 31 | procedure Write1(Address: DWord; Data: Byte); virtual; abstract;
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| 32 | procedure Write2(Address: DWord; Data: Word); virtual; abstract;
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| 33 | procedure Write4(Address: DWord; Data: Cardinal); virtual; abstract;
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| 34 | procedure Write8(Address: DWord; Data: DWord); virtual; abstract;
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| 35 | function Read1(Address: DWord): Byte; virtual; abstract;
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| 36 | function Read2(Address: DWord): Word; virtual; abstract;
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| 37 | function Read4(Address: DWord): Cardinal; virtual; abstract;
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| 38 | function Read8(Address: DWord): DWord; virtual; abstract;
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| 39 | end;
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| 40 |
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| 41 | implementation
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| 42 |
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| 43 | end.
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| 44 |
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