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articles:iicplus_merlin [2017/12/14 15:11] M.G. [Fixing ROM 5X] |
articles:iicplus_merlin [2017/12/14 15:13] M.G. [Fixing ROM 5X] |
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| - | We make use of the IIc Plus's existing routines to save and restore the language card state, and in between we call the ROM 5X dispatch, which executes the classic "air raid beep" that the Apple II line is known for. | + | We make use of the IIc Plus's existing routines to save and restore the language card state, and in between we call the ROM 5X dispatch, which executes the classic "air raid beep" that the Apple II line is known for. In fact, this can be used to call any of the ROM 5X functions, now or in the future, and preserve the RAM state, provided we don't care about the contents of the A register. |