Processor Exception Interrupt Error
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Stack-Segment Fault 1.1.8 General Protection Fault 1.1.9 Page Fault 1.1.9.1 Error code 1.1.10 x87 Floating-Point Exception 1.1.11 Alignment Check 1.1.12 SIMD Floating-Point how to fix fatal error in windows 8 Exception 1.2 Traps 1.2.1 Debug 1.2.2 Breakpoint 1.2.3 Overflow 1.3 Aborts how to fix fatal error in windows xp 1.3.1 Double Fault 1.3.2 Machine Check 1.3.3 Triple Fault 2 Selector Error Code 2.1 Legacy 2.1.1 FPU fatal exception error in android Error Interrupt 2.1.2 Coprocessor Segment Overrun 3 See Also 3.1 External Links Exceptions as described in this article are generated by the CPU when an 'error' occurs. Some http://www.helpinfo.com/index.jsp?k2dockey=1021028033053248607&formwassubmitted=true exceptions are not really errors in most cases, such as page faults. Exceptions are a type of interrupt. Exceptions are classified as: Faults: These can be corrected and the program may continue as if nothing happened. Traps: Traps are reported immediately after the execution of the trapping instruction. Aborts: Some severe unrecoverable error. Some exceptions will push http://wiki.osdev.org/Exceptions a 32-bit "error code" on to the top of the stack, which provides additional information about the error. This value must be pulled from the stack before returning control back to the currently running program. (i.e. before calling IRET) Name Vector nr. Type Mnemonic Error code? Divide-by-zero Error 0 (0x0) Fault #DE No Debug 1 (0x1) Fault/Trap #DB No Non-maskable Interrupt 2 (0x2) Interrupt - No Breakpoint 3 (0x3) Trap #BP No Overflow 4 (0x4) Trap #OF No Bound Range Exceeded 5 (0x5) Fault #BR No Invalid Opcode 6 (0x6) Fault #UD No Device Not Available 7 (0x7) Fault #NM No Double Fault 8 (0x8) Abort #DF Yes (Zero) Coprocessor Segment Overrun 9 (0x9) Fault - No Invalid TSS 10 (0xA) Fault #TS Yes Segment Not Present 11 (0xB) Fault #NP Yes Stack-Segment Fault 12 (0xC) Fault #SS Yes General Protection Fault 13 (0xD) Fault #GP Yes Page Fault 14 (0xE) Fault #PF Yes Reserved 15 (0xF) - - No x87 Floating-Point Exception 16 (0x10) Fault #
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow http://stackoverflow.com/questions/125394/interrupts-and-exceptions the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Interrupts and exceptions up vote 16 down vote favorite 13 I've seen several question on here about fatal error exceptions, and some of them hint at interrupts as exceptions, but none make the connection clear. What is an interrupt? What is an exception? (please explain what exceptions are for each language you know, as there are some differences) When is an exception an interrupt and vice-versa? exception terminology interrupt share|improve this question edited Sep 26 '08 at 20:06 Dima 29.2k115496 asked Sep 24 '08 at 4:17 Adam Davis 59.1k43211303 add a how to fix comment| 11 Answers 11 active oldest votes up vote 8 down vote accepted An interupt is a CPU signal generated by hardware, or specific CPU instructions. These cause interupt handlers to be executed. Things such as I/O signals from I/O hardware generate interupts. An exception can be thought of as a software-version of an interupt, that only affects its process. I'm not sure on the exact details, but an exception could be implemented by an interupt. share|improve this answer answered Sep 24 '08 at 4:25 TraumaPony 7,184114667 add a comment| up vote 15 down vote Your processor is going to have a number of external interrupt pins. Typically these pins are connected to hardware and are used to indicate when some external event occurs. For example, if you are using a serial port the UART will raise raise a pin that is connected to one of the interrupt pins on the processor to indicate that a byte has been received. Other peripherals like timers, usb controllers, etc. will also generate interrupts on the basis of some external event. When the processor receives a signal on one of it's external interrupt pins it will immediately jump to some nominated location in memory and start executing. The code executed is typically called an ISR, or inter
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