stepan at suse.de
Tue Jun 25 14:00:14 CEST 2002
I just noticed some weirdness with $find
when I do
0 > s" constant" $find ok
3 > .s 120019b88 0 -1 ok
The definition from IEEE 1275-1994 is:
$find ( name-str name-len -- xt true | name-str name-len false )
Our definition seems to be wrong:
col($FIND LAST @ >R 2DUP R@ COMP-WORD ?BRANCH(9) 2DROP R> DUP
>XCODE SWAP CELL+ C@ TRUE EXIT R> @ ?DUP 0= ?BRANCH(-21) 2DROP FALSE)
what exactly does "SWAP CELL+ C@" do? should this not just be a NIP ?
according to this we would have to change COMPILE-WORD, INTERPRET-WORD,
', POSTPONE and FIND, some of which do the NIP afterwords themselfes, as
far as i can see.
The x86 isn't all that complex - it just doesn't make a lot of
sense. -- Mike Johnson, Leader of 80x86 Design at AMD
Microprocessor Report (1994)
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