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{{Merge|Bomb (symbol)|date=October 2011}} |
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{{Unreferenced|date=December 2011}} |
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[[Image:Row of bombs.png|right|frame|This is a screenshot from an ([[Emulator|emulated]]) [[Atari ST]], the four bombs indicate that the system error "Illegal Instruction" has occurred.]] |
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[[Atari TOS|TOS]]-based systems, such as the [[Atari ST]], used a '''row of bombs''' to indicate a critical system error. The number of bombs displayed revealed information about the occurred error. The error (also called an ''[[Exception handling|exception]]'') is reported by the [[Motorola 68000]] [[microprocessor]]. The very first version of TOS used [[mushroom cloud]]s which was quickly changed, as it was considered [[Political correctness|politically incorrect]].{{citation}} |
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* 1 bomb: Reset, Initial PC2 |
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* 2 bombs: Bus Error |
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* 3 bombs: Address Error |
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* 4 bombs: Illegal Instruction |
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* 5 bombs: [[Division by zero|Zero Divide]] |
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* 6 bombs: CHK Instruction |
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* 7 bombs: TRAPV Instruction |
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* 8 bombs: Privilege Violation |
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* 9 bombs: Trace |
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* 10 bombs: Line 1010 Emulator |
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* 11 bombs: Line 1111 Emulator |
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* 12–13 bombs: [unassigned, reserved] |
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* 14 bombs: Format Error |
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* 15 bombs: Uninitialized Interrupt Vector |
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* 16–23 bombs: [unassigned, reserved] |
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* 24 bombs: Spurious Interrupt |
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* 25 bombs: Level 1 Interrupt Autovector |
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* 26 bombs: Level 2 Interrupt Autovector |
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* 27 bombs: Level 3 Interrupt Autovector |
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* 28 bombs: Level 4 Interrupt Autovector |
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* 29 bombs: Level 5 Interrupt Autovector |
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* 30 bombs: Level 6 Interrupt Autovector |
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* 31 bombs: Level 7 Interrupt Autovector |
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* 32–47 bombs: Trap Instruction Vectors |
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* 48–63 bombs: [unassigned, reserved] |
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* 64–255 bombs: User Interrupt Vectors |
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== See also == |
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{{screens of death}} |
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== External links == |
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* [http://www.freescale.com/files/archives/doc/ref_manual/M68000PRM.pdf Programmer’s Reference Manual for the Motorola 68000 family] |
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[[Category:Atari ST]] |
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[[Category:Screens of death]] |
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[[it:Row of bombs]] |
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[[pl:Row of bombs]] |
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