CARD Routines 2 — Off-screen clipping — 2026
In 2026 a new version of the CARD ROUTINES was developed: CARD ROUTINES 2, which extends the CARD command to support off-screen coordinates with automatic clipping.
With the original CARD ROUTINES, X must be between 0 and 33 and Y between 0 and 16, so the card is always fully visible. With CARD ROUTINES 2, X can range from -6 to 39 and Y from -8 to 24, allowing cards to be drawn partially off-screen. The visible portion is automatically clipped.
CARD ROUTINES 2 is fully backward-compatible: existing programs work without any change.
100 random cards drawn with the new extended coordinates, some partially clipped at the screen edges.
Sources and test project
The annotated 6502 assembly source and a ready-to-run test project are bundled with all the other sources — see the Game Sources page for the downloadable zip and build instructions.
card-routines-clipping.asm— annotated 6502 assembly source (insideDev/in the archive)Dev/Test/— test project with 100 random cards in extended range- Test-clipping.D64 — ready-to-run test disk image