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The IBM PC (BIOS and MS-DOS runtime) does not follow the official Intel layout beyond the first five exception vectors implemented in the original 8086. Interrupt 5 is already used for handling the Print Screen key, IRQ 0-7 is mapped to INT_NUM 0x08-0x0F, and BIOS is using most of the vectors in the 0x10-0x1F range as part of its API.
In Windows, bug checks are only supported by the Windows NT kernel. The corresponding system routine in Windows 9x, named SHELL_SYSMODAL_Message, does not halt the system like bug checks do. Instead, it displays the infamous "blue screen of death" (BSoD) and allows the user to attempt to continue. The Windows DDK and the WinDbg documentation ...
The operating system then triggers an exception or signal in the application. Unix applications traditionally responded to the signal by dumping core . Most Windows and Unix GUI applications respond by displaying a dialogue box (such as the one shown in the accompanying image) with the option to attach a debugger if one is installed.
In Windows NT, the booting process is initiated by NTLDR in versions before Vista and the Windows Boot Manager (BOOTMGR) in Vista and later. [4] The boot loader is responsible for accessing the file system on the boot drive, starting ntoskrnl.exe, and loading boot-time device drivers into memory.
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When a system on a chip (SoC) enters suspend to RAM mode, in many cases, the processor is completely off while the RAM is put in self refresh mode. At resume, the boot ROM is executed again and many boot ROMs are able to detect that the SoC was in suspend to RAM and can resume by jumping directly to the kernel which then takes care of powering on again the peripherals which were off and ...
MIPS I has two instructions for software to signal an exception: System Call and Breakpoint. System Call is used by user mode software to make kernel calls; and Breakpoint is used to transfer control to a debugger via the kernel's exception handler. Both instructions have a 20-bit Code field that can contain operating environment-specific ...
[10] The reset vector for MIPS32 processors is at virtual address 0xBFC00000, [ 11 ] which is located in the last 4 Mbytes of the KSEG1 non-cacheable region of memory. [ 12 ] The core enters kernel mode both at reset and when an exception is recognized, hence able to map the virtual address to physical address.