Re: How does the Applesoft INT (vs. FP) command work?

[dog_cow@macgui.com (D Finnigan)]

Steve Nickolas wrote:
> On Sun, 22 Jan 2012, MdntTrain wrote:
> 
>>
>> Hi, folks.
>>
>>  On a II+, if INTBASIC is loaded into the Language Card ram (LCr), I
>> know *what* the INT command does -- it switches from Applesoft in ROM
>> to the BASIC in the LCr ..  but does anyone know exactly what steps
>> occur when INT is run?
>>
>>  At some point, INT must activate the LCr bank, which would then
>> immediately make Applesoft (thus presumably the rest of the INT
>> command code) disappear.. so I does INT set up something like a page 3
>> route to do the bank switch, then start intbasic at E000?
>>
>>  Thank you for any explanations-
>> -John
>>
> 
> FP and INT are part of DOS, not BASIC.  And these are located in DOS 
> space.
> 

See also the DOS 3.3 User's Manual (or, Do's and Dont's of DOS).

One of the appendices has some coverage of the INT and FP commands.

-- 
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