A83: Re: Interrupt routines

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A83: Re: Interrupt routines


If you want to do it in Ion, you'll have to use some code something like
this:
#ifdef    TI83
SetVector:
    ld    hl,$8400
    ld    a,h
    ld    de,$8401
    ld    bc,$0100
    ld    (hl),$82
    ldir
    ld    i,a
LoadInterrupt:
    ld    hl,InterruptStart
    ld    de,$8282
    ld    bc,InterruptEnd-InterruptStart
    ldir
    im    2
    ei
    ret
#else
SetVector:
    ld    hl,$8700
    ld    a,h
    ld    de,$8701
    ld    bc,$0100
    ld    (hl),$88
    ldir
    ld    i,a
LoadInterrupt:
    ld    hl,InterruptStart
    ld    de,$8888
    ld    bc,InterruptEnd-InterruptStart
    ldir
    im    2
    ei
    ret
#endif
InterruptStart:
;....Code goes here
InterruptEnd:

If you want to do it in MirageOS, it's much, much, easier.  All you have to
do is three lines of code:
    ld    hl,interruptstart:
    ld    a,40
    call    setupint


-Dan Englender


----- Original Message -----
From: "John" <tankrshr77@yahoo.com>
To: <assembly-83@lists.ticalc.org>
Sent: Monday, September 04, 2000 12:57 PM
Subject: A83: Interrupt routines


>
> Does anyone know where i can find code that runs an
> interrupt routine in an ion/mirage game? will the one
> in asmguru work without major changes?
>
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References: