Electronic apparatus and method for patching a fixed...

Details Electronic apparatus and method for patching a fixed... Electronic apparatus and method for patching a fixed...

G - Physics

06

F

G06F 12/10 (2006.01) G06F 9/38 (2006.01) G06F 9/445 (2006.01)

Patent

CA 2087696

PATENT ABSTRACT OF THE DISCLOSURE An electronic apparatus which includes a CPU, a ROM, a RAM, an input port, a data bus, an address bus, a patching portion address register and a patching interrupt vector register which are connected to the data bus, a comparator which compares a coincidence with the address stored in the address register and an address on the address bus and supplies an interrupt to an interrupt control portion of the CPU which is also supplied with other interrupts for other processing. Further, an external storage device, connected to the input port, supplies a main program bug patching information which is stored in the RAM, which includes a stack area in which there are saved data written in the address register and the patching interrupt register, so that patching of program bugs can be carried out even during an interrupt.

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