17 Oct
2010
17 Oct
'10
12:55 a.m.
On 2010-10-16 6:37 PM, repository service wrote:
[...] +\ Note: these words are not part of the official OF specification, however +\ they are part of the ANSI DPANS94 core extensions (see section 6.2) and +\ so this seems an appropriate place for them. +: 2>r swap>r>r ; +: 2r> r> r> swap ; +: 2r@ r> r> 2dup>r>r swap ;
Are those words correct? The return address from the colon definition will also be on the return stack and will interfere. What I see in various places in Openboot sources is:
: 2>r ( a b -- ) r> -rot swap >r >r >r ; : 2r> ( -- a b ) r> r> r> rot >r swap ;