firewall machine = F = firmware

fireworks mode n.

1. The mode a machine is sometimes said to be in when it is performing a crash and burn operation. 2. There is (or was) a more specific meaning of this term in the Amiga community. The word fireworks described the effects of a particularly serious crash which prevented the video pointer(s) from getting reset at the start of the vertical blank. This caused the DAC to scroll through the entire contents of CHIP (video or video+CPU) memory. Since each bit plane would scroll separately this was quite a spectacular effect.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

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