2020-03-31 17:07:35 +00:00
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[< back to index](../doc_index.md)
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# Preprocessor options for Commodore computer targets
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All Commodore targets define the `CBM` feature as 1.
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### Target detection
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* `CBM_PET` – 1 if the target is PET, 0 otherwise
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* `CBM_VIC` – 1 if the target is VIC-20, 0 otherwise
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* `CBM_264` – 1 if the target is an 8-bit Commodore computer from the 264 line, 0 otherwise
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* `MOS_6510` – 1 if the target uses a MOS 6510-compatible processor (with an I/O port at $0000/$0001)
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* `CBM_64` – 1 if the target is Commodore 64, 0 otherwise
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* `CBM_64_CRT` – 1 if the target is a cartridge for Commodore 64, 0 otherwise
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2020-03-31 19:43:36 +00:00
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* `LUNIX` – 1 if the target is Commodore 64 running LUnix, 0 otherwise
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2020-03-31 17:07:35 +00:00
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* `CBM_128` – 1 if the target is Commodore 128, 0 otherwise
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* `CBM_64_COMPAT` – 1 if the target is an 8-bit Commodore computer compatible with Commodore 64
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(for example, C128, C65, Mega 65), but not Commodore 64 itself, 0 otherwise
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### Feature enabling
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Due to incompatibilities between different versions of Commodore PET,
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certain libraries can be configured to support only some ROM revisions.
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By default, all of these are enabled:
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* `PET2000_SUPPORT` – set this to 1 to enable support for PET 2001 with the original ROMs (BASIC 1.0), set it to 0 to disable it
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* `PET3000_SUPPORT` – set this to 1 to enable support for PET 3000 series with the upgraded ROMs (BASIC 2.0), set it to 0 to disable it
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* `PET4000_SUPPORT` – set this to 1 to enable support for PET 4000 with the 4.0 ROMs (BASIC 4.0), set it to 0 to disable it
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