machine-specific coding

noun
UK /məˈʃiːn spəˈsɪfɪk ˈkəʊdɪŋ/
US /məˈʃiːn spəˈsɪfɪk ˈkoʊdɪŋ/

Writing instructions that only work on one particular computer or device.

The game used machine-specific coding so it would run fast on that console.


OTHER MEANINGS

2. Code optimized for a particular processor's instruction set.

The engineer wrote machine-specific coding to squeeze out every bit of speed.

3. Software tailored to one model of hardware rather than general devices.

Machine-specific coding meant the app only worked on that exact phone model.

4. Programming that relies on unique features of a single machine's architecture.

Porting the program failed because of its machine-specific coding.