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Introduction to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.

Halt and Catch Fire – Wikipedia

Once the processor entered this mode, it was not responsive to interruptsso normal operation could only be restored by a reset hence the “Drop Dead” and “Halt hc Catch Fire” monikers. Retrieved 10 July The process is reviewed by David Agans, thus: In effect, the address bus turns into a 16 bit counter.

If you’d like to contribute content, let us know. Halt and Catch Fire is also related to other types of situations that can lock up computers, such as the Pentium FOOF bug, which locks up the computer by referencing a nonexistent memory address.

It began as a purely theoretical instruction, but some firms have used actual HCF instructions to diagnose linuz or simulate certain events in a computer system. How to tell depends on the chipset which should be in llnux spec sheet for the modem.


New Linux HCF modem driver release (0.98mbsibeta02110301)

Welcome to the most active Linux Forum on the web. The operation codes opcodes —the portions of the machine language instructions that specify an operation to be performed —referred to by the mnemonic HCF are hexadecimal 9D and DD, and were reported in an article written liunx Gerry Wheeler in the December issue of BYTE magazine on undocumented opcodes.

Slow Dancing With Technology: By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe hcv threads and access many other special features. Also some undocumented 0Fh opcodes”.

The only way out is CPU reset. All times are GMT BB code is On. The Motorola microprocessor was the first for which an undocumented assembly mnemonic HCF became widely known. In computer engineering, Halt and Catch Fireknown by the assembly mnemonic HCFis an idiom referring to a computer machine code instruction that causes the computer’s central processing unit CPU to cease meaningful operation, typically requiring a restart of the computer. Linux – Newbie This Linux forum is for members that are new to Linux.

Check with your manufacturer to find out what kind of modem you have or chipset it has if your not for sure.

HCF driver installation

Join our community today! For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with kinux and network administration.


Picking the most relevant forum and posting it once there makes it easier for other members to help you and keeps the discussion all in one place.

Zero replies is not a valid excuse for double posts. The mnemonic HCF is believed to be the first built-in self-test feature on a Motorola microprocessor. A processor, upon encountering the instruction, would start switching bus lines very fast, potentially leading to overheating. Registration is quick, simple and absolutely free. Archived from the original on What considerations are most important when deciding which big data solutions to implement?

These references were thus to the unresponsive behavior of the CPU in this state, and not to any form of erratic behavior. Open Source Consulting Domain Registration.

You are currently viewing LQ as a guest. Especially with modern technology, hct is entirely figurative — rather than burning, the system would just shut down. During Black Hat USAChristopher Domas showed that he has found a new currently unknown “Halt and Catch Fire” instruction [20] [21] on a particular x86 processor model using his own x86 processor fuzzer called sandsifter [22].