Supported platform matrix
Version 1.9.1 uses only Free Pascal source and standard RTL/FCL units.
| Tier | Compiler | OS / CPU | Single |
Double |
Extended ABI |
Qualification |
|---|---|---|---|---|---|---|
| Primary | FPC 3.2.2 | Windows x86-64 | IEEE binary32 | IEEE binary64 | 64-bit alias on Win64 | Full suite, examples, benchmarks, package |
| Primary | FPC 3.2.2 | Linux x86-64 | IEEE binary32 | IEEE binary64 | 80-bit extended | Full suite, examples, benchmarks |
| Secondary | FPC 3.2.2 | Windows i386 | IEEE binary32 | IEEE binary64 | 80-bit extended | Optimised full suite and package |
Other targets may compile but are not claimed as release-qualified until they are added to this table with reproducible evidence. Extended remains deliberately outside the typed dense/sparse storage paths in the 1.9 line because its precision differs by ABI.
Dimensions use SizeInt; allocation products are checked before allocation on 32- and 64-bit targets. Practical dimensions remain limited by address space and available memory.