picogame: enable on pimoroni_picosystem - #11359
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The board has the 240x240 ST7789 over four-wire SPI that picogame's fast display path drives, plus the buttons and audio a game needs. It does not fit at -O3: the firmware is at 95.3% of the 1020 KB partition and the engine needs another 50 KB. At -O2 with the loop passes it keeps 140 KB free, within 1% of -O3 on this M0+.
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Enables picogame on pimoroni_picosystem: a 240x240 ST7789 over four-wire SPI, buttons and audio, which picogame's fast display path drives as it comes.
It does not fit at -O3: the firmware is at 95.3% of the 1020 KB partition and the engine needs another 50 KB. It builds at -O2 with five loop passes, which leaves 140 KB free and measures within 1% of -O3 on this M0+.