EP 1221096 A1 20020710 - METHOD AND APPARATUS FOR MODIFYING MICROINSTRUCTIONS IN A STATIC MEMORY DEVICE
Title (en)
METHOD AND APPARATUS FOR MODIFYING MICROINSTRUCTIONS IN A STATIC MEMORY DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM ÄNDERN VON MIKROBEFEHLEN IN EINER STATISCHEN SPEICHERANORDNUNG
Title (fr)
PROCEDE ET APPAREIL DE MODIFICATION DE MICRO-INSTRUCTIONS DANS UN DISPOSITIF DE MEMOIRE STATIQUE
Publication
Application
Priority
- US 0025474 W 20000914
- US 39891299 A 19990914
Abstract (en)
[origin: WO0120453A1] Method and apparatus for modifying the program flow of microinstructions residing in a static memory device. When microinstructions from the static memory device need to be modified, a jump point register is used to hold a jump point address that triggers an interrupt event. When the current program counter contains an address equal to the jump point address and the jump point register is enabled, an interrupt event is generated that redirects the program flow away from the static memory device to a programmable memory device. Rather than using the interrupt to indicate the occurrence of an external event, the interrupt is used to bypass portions of the microinstructions residing in the static memory device.
IPC 1-7
IPC 8 full level
G06F 9/22 (2006.01); G06F 9/26 (2006.01); G06F 9/445 (2006.01)
CPC (source: EP KR)
G06F 8/66 (2013.01 - EP KR); G06F 9/268 (2013.01 - EP KR); G06F 9/328 (2013.01 - EP KR)
Citation (search report)
See references of WO 0120453A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0120453 A1 20010322; AU 7495300 A 20010417; CN 1373872 A 20021009; EP 1221096 A1 20020710; JP 2003509769 A 20030311; KR 20020029921 A 20020420
DOCDB simple family (application)
US 0025474 W 20000914; AU 7495300 A 20000914; CN 00812750 A 20000914; EP 00963557 A 20000914; JP 2001523963 A 20000914; KR 20027001886 A 20020209