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The Anatomy of a Crash: Why the "Four Bombs" Still Matter

By Terry Ross February 07, 2026 0 comments

Atari ST 4 bombs error mug with text: Error 0x4: Illegal Instruction Day Workplace fundamentally wrong

Long before we had modern kernel panic logs or detailed Windows dump files, we had the Bombs. Specifically, the "Illegal Instruction" icons that haunted every user of the 16/32-bit era.

In the original TOS (The Operating System), the number of bombs actually told youΒ what went wrong. Two bombs? Bus Error. Three bombs? Addressing error. But Four Bombs? That was the dreaded "Illegal Instruction." It meant the processor tried to execute a command that simply didn't exist in its vocabulary.

At The Wits End, we believe technology mirrors life. Sometimes, despite your best efforts, you're given an "Illegal Instruction" by a manager or a client. You're asked to do the impossible with no documentation and a system that's already redlining.

That’s why we created the Illegal Instruction Mug. It’s a tribute to the era of 8MHz processors, the struggle of manual saves, and the universal feeling of a "Workplace Fundamentally Wrong."

Whether you're compiling Modula-2 code or just trying to survive a Monday morning meeting, remember: at least you don't have to toggle a physical reset switch anymore. (Usually.)

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