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→Peripherals and Memory Map
|$FD||$FD00-$FDFF||Reserved|| ||This memory range is reserved for future ROM expansion.
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|rowspan="3"|$FE-$FF||rowspan="3"|$FE00-$FF80FFFF||rowspan="3"|ROM||$FE00-FF80||This region is occupied by a small Read-Only Memory (ROM) image that contains input-output routines for the character display and keyboard.
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|$FF81-$FFF9||Entry point table - This table consists of 3-byte "entry points" for the ROM routines. To access a particular routine, use the Jump to SubRoutine (JSR) instruction with the corresponding entry point. This arrangement allows the ROM image to be revised without changing the entry point locations. See [[#ROM Routines|ROM Routines]] below for details on the available entry points.
