公开(公告)号：FR2851349A1

公开(公告)日：2004-08-20

申请号：FR0301879

申请日：2003-02-17

Applicant: ST MICROELECTRONICS SA

Inventor： PADMANABHAN GOSAGAN ,  DAVIDESCU DRAGOS ,  ROCHE FRANCK

IPC: G06F9/06 ,  G06F9/30 ,  G06F9/38 ,  G06F9/42 ,  G06F9/46 ,  G06F11/30 ,  G06F12/16

Abstract: The microprocessor has a CPU with registers containing a contextual data and a pointer of stack (SP, SPH, SPL). A memory (MEM2) has a stack (STK) for backup of the contextual data. The CPU is arranged to backup the contextual data contained in a variable number of registers according to a flag value stored in a register (CCR, CR) to backup, at a time of shifting from one program to another. An independent claim is also included for a process of management of stack of microprocessor.