| 摘要 |
<p>An electronic apparatus (10) which includes a CPU (1), a ROM (2), a RAM (3), an input port (4), a data bus (5), an address bus (6), a patching portion address register (7) and a patching interrupt vector register (8) which are connected to the data bus (5), a comparator (9) which compares a coincidence with the address stored in the address register (7) and an address on the address bus (6) and supplies an interrupt to an interrupt control portion of the CPU (1) which is also supplied with other interrupts for other processing. Further, an external storage device (20), connected to the input port (4), supplies a main program bug patching information which is stored in the RAM (3), which includes a stack area (32) in which there are saved data written in the address register (7) and the patching interrupt register (8), so that patching of program bugs can be carried out even during an interrupt. <IMAGE></p> |
