Tag: register

  • Kernel Panic….

    Call Trace: {panic+483} {_spin_unlock_ irq+12} {__down_read+60} {_spin_lock_irqsave+ 9} {__up_read+25} {blocking_notifier_cal l_chain+70} {do_exit+141} {kernel_math_error+0} <ffffffff80270dfc}{do_invalid_op+173} {:aacraid:aac_intr _normal+463} <fffffff80269ece}{spin_lock_irqsave+9} {printk+82} {error_exit+0} {vgacon_cursor+0} {:aacraid:aac_intr_normal+473} {:aacr aid:aac_intr_normal+473} {:aacraid:aac_rx_intr+55} {handle_IRQ _event+41} {__do_IRQ+154} {do_IRQ+60} {ret_from_intr+0} (3) astrax:/home/pgperez> (3) astrax:/home/pgperez> cat error {:aacraid:aac_rx_intr+55} {handle_IRQ_event+41} {__do_IRQ+154} {do_IRQ+60} {ret_from_intr+0} link : https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=205778

  • What is a PUSH instruction ?

    What is a PUSH instruction ?

    ABOUT PUSH INSTRUCTION RELATED In 8086, the main stack register is called stack pointer – SP. The stack segment register (SS) is usually used to store information about the memory segment that stores the call stack of currently executed program. SP points to current stack top. By default, the stack grows downward in memory, so […]

  • eip in 32-bit mode and rip in 64-bit mode

    ABOUT Processor Register In computer architecture, a processor register is a quickly accessible location available to a computer’s central processing unit (CPU). Registers usually consist of a small amount of fast storage, although some registers have specific hardware functions, and may be read-only or write-only. Registers are typically addressed by mechanisms other than main memory, […]

  • The Intel IA32 processors have a base pointer..

    software | Windows | The Intel IA32 processors have a base pointer register called EBP . The EBP register is typically set to the value of the ESP register at the beginning of a procedure, and used to address the procedure arguments and locally allocated variables throughout the procedure. Thus, the arguments are located at […]

  • 16 bits into the segment register…(GS)

    software | Windows | These instructions read a full pointer from memory and store it in the selected segment register:register pair. The full pointer loads 16 bits into the segment register SS, DS, ES, FS, or GS source : http://pdos.csail.mit.edu/6.828/2008/readings/i386/LGS.htm software |GNU/Linux| (gdb) info registers rax 0xfffffffffffffdfc -516 rbx 0x5dc 1500 rcx 0xffffffffffffffff -1 rdx […]