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Add Forth words 2>r, 2r> and 2r@ as described in the ANSI Forth core extensions as they are required for OpenSolaris.

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Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@911 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Mark Cave-Ayland
2010-10-16 22:37:31 +00:00
committed by Mark Cave-Ayland
parent 417c8b97e2
commit 238ba3218d
1 changed files with 11 additions and 0 deletions
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11
forth/bootstrap/bootstrap.fs
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@@ -404,6 +404,17 @@ variable leaves 0 leaves !
: 2rot >r >r 2swap r> r> 2swap ; : 2rot >r >r 2swap r> r> 2swap ;
\
\ 7.3.1.4 - return stack
\
\ 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 ;
\ \
\ 7.3.2.1 - single precision integer arithmetic (part 1) \ 7.3.2.1 - single precision integer arithmetic (part 1)
\ \