SWIs which take no parameters

[Philip Ludlam]

On 3 Oct, in message <5ad8b13b4c.tom at loxley.compton.nu>
  Tom Hughes <tom at compton.nu> wrote:

>In message <5ed49f3b4c.philip at philipnet.com>
>          Philip Ludlam <philip at philipnet.com> wrote:

[snip]

>> I thought that using ABSENT instead of ENTRY would still produce a C
>> header file which defines veneers for these SWIs, but it doesn't.
>
>ABSENT is a way of declaring the SWI for documentation purposes
>without actually providing a veneer.
>
>For your case you don't need anything in the SWI body, like this
>example for OS_Escape:
>
>  OS_Escape = (NUMBER 0x11B "VDU command for escape (no operation)")

Thanks for that Tom.

Yours,

Phil L.
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