| 摘要 |
PURPOSE:To realize a continuous access for data dispersed within a stack by providing an address stack to store a boundary address and a comparator which compares the contents of an exclusive pointer with the contents of the address stack. CONSTITUTION:A comparator 18 compares the value of a data pointer 12 with the contents of an upper boundary address stack 16 shown by an address stack pointer 15. If the value of the pointer 12 is larger than the contents of the stack 16, an indication is given to the pointer 15 to increase the address stack pointers. While an indication is given to the pointer 12 to load the contents of a lower boundary address stack 17 shown by the pointer 15. A comparator 19 gives an indication to decrease the pointers 15 when the value of the pointer 12 is smaller than the contents of the stack 17. |
