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* Ensure background/sprite tiles are spread properlyMiquel Sabaté Solà2025-02-041-1/+1
| | | | | | | | At least on the MMC3 chip, it's important to have background tiles on the first pattern table and then sprite tiles on the second pattern table. This avoids a hardware bug on scanline IRQs. Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
* Use custom configurations everywhereMiquel Sabaté Solà2025-02-041-1/+0
| | | | | | | Moreover, I have introduced a linker configuration for MMC1 as well, so to properly implement the `basics/persist.s` example. Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
* Vastly improve the documentationMiquel Sabaté Solà2025-02-041-4/+4
| | | | | | This includes more clear explanations, images, etc. Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
* Add a way to safely read from controllersMiquel Sabaté Solà2025-02-041-1/+1
| | | | | | | | | First of all, move some reading utilities into the new `shared` directory, so controllers can be read by more than one example. Second, even if we keep the example on `basics/input.s` simple, let's provide a safe alternative for the other examples. Signed-off-by: Miquel Sabaté Solà <msabate@suse.com>
* basics: Add a flickering exampleMiquel Sabaté Solà2025-02-041-1/+280
| | | | | | | Add an example on how to flicker sprites so to not surpass the scanline limit for them. Signed-off-by: Miquel Sabaté Solà <msabate@suse.com>
* basics: Add an example on CHR-RAMMiquel Sabaté Solà2025-02-041-0/+1
Moreover, add a simple fix to the CI. Signed-off-by: Miquel Sabaté Solà <msabate@suse.com>