公开(公告)号：EP0915415A3

公开(公告)日：1999-06-09

申请号：EP98119391.5

申请日：1998-10-14

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： Allen, Stephen ,  Wojewoda, Igor

IPC: G06F9/32

CPC classification number: G06F7/785 ,  G06F9/321 ,  G06F9/3814 ,  G06F9/3867

Abstract: The stack pointer is used for generating the next unutilized location in the stack memory device in order to indicate where a current value in the program counter is to be written. The stack pointer also generates a directly preceding location to the next unutilized location in order to read the last value of the program counter that was written to the stack memory device. The stack pointer will select the next unutilized location in the stack memory device for a write operation and the directly preceding location to the next unutilized location in the stack memory device for a read operation. The stack pointer will further perform either a post increment or post decrement operation on the next unutilized location in the stack memory device after execution of a current instruction.

公开(公告)号：EP0915415A2

公开(公告)日：1999-05-12

申请号：EP98119391.5

申请日：1998-10-14

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： Allen, Stephen ,  Wojewoda, Igor

IPC: G06F9/32

CPC classification number: G06F7/785 ,  G06F9/321 ,  G06F9/3814 ,  G06F9/3867

Abstract: The stack pointer is used for generating the next unutilized location in the stack memory device in order to indicate where a current value in the program counter is to be written. The stack pointer also generates a directly preceding location to the next unutilized location in order to read the last value of the program counter that was written to the stack memory device. The stack pointer will select the next unutilized location in the stack memory device for a write operation and the directly preceding location to the next unutilized location in the stack memory device for a read operation. The stack pointer will further perform either a post increment or post decrement operation on the next unutilized location in the stack memory device after execution of a current instruction.

Abstract translation: 堆栈指针用于产生堆栈存储设备中的下一个未使用位置，以指示程序计数器中的当前值将被写入的位置。 堆栈指针还会生成到下一个未使用位置的前一个位置，以读取写入堆栈内存设备的程序计数器的最后一个值。 堆栈指针将选择堆栈存储设备中的下一个未使用位置用于写入操作，并选择堆栈存储设备中的下一个未使用位置的前一个位置用于读取操作。 在执行当前指令之后，堆栈指针将进一步对堆栈存储设备中的下一个未使用位置执行后增量或后减量操作。