Fixup decompile DO LOOP.

This commit is contained in:
Brad Nelson
2022-07-30 17:01:48 -07:00
parent f0a1d54b35
commit a32fce7334
4 changed files with 23 additions and 19 deletions

View File

@ -61,20 +61,20 @@ variable leaving
: leaving( leaving @ 0 leaving ! 2 nest-depth +! ;
: )leaving leaving @ swap leaving ! -2 nest-depth +!
begin dup while dup @ swap here swap ! repeat drop ;
: (do) ( n n -- .. ) swap r> -rot >r >r >r ;
: do ( lim s -- ) leaving( postpone (do) here ; immediate
: (?do) ( n n -- n n f .. )
: DO ( n n -- .. ) swap r> -rot >r >r >r ;
: do ( lim s -- ) leaving( postpone DO here ; immediate
: ?DO ( n n -- n n f .. )
2dup = if 2drop r> @ >r else swap r> cell+ -rot >r >r >r then ;
: ?do ( lim s -- ) leaving( postpone (?do) leaving, here ; immediate
: unloop r> rdrop rdrop >r ;
: (leave) r> rdrop rdrop @ >r ;
: leave postpone (leave) leaving, ; immediate
: (+loop) ( n -- ) dup 0< swap r> r> rot + dup r@ < -rot >r >r xor 0=
if r> cell+ rdrop rdrop >r else r> @ >r then ;
: +loop ( n -- ) postpone (+loop) , )leaving ; immediate
: (loop) r> r> 1+ dup r@ < -rot >r >r 0=
if r> cell+ rdrop rdrop >r else r> @ >r then ;
: loop postpone (loop) , )leaving ; immediate
: ?do ( lim s -- ) leaving( postpone ?DO leaving, here ; immediate
: UNLOOP r> rdrop rdrop >r ;
: LEAVE r> rdrop rdrop @ >r ;
: leave postpone LEAVE leaving, ; immediate
: +LOOP ( n -- ) dup 0< swap r> r> rot + dup r@ < -rot >r >r xor 0=
if r> cell+ rdrop rdrop >r else r> @ >r then ;
: +loop ( n -- ) postpone +LOOP , )leaving ; immediate
: LOOP r> r> 1+ dup r@ < -rot >r >r 0=
if r> cell+ rdrop rdrop >r else r> @ >r then ;
: loop postpone LOOP , )leaving ; immediate
create I ' r@ @ ' i ! ( i is same as r@ )
: J ( -- n ) rp@ 3 cells - @ ;
: K ( -- n ) rp@ 5 cells - @ ;

View File

@ -103,7 +103,7 @@ e: check-boot
out: loop
out: +loop
out: leave
out: unloop
out: UNLOOP
out: ?do
out: do
out: next

View File

@ -34,6 +34,7 @@ internals definitions
16 constant NONAMED
32 constant +TAB
64 constant -TAB
128 constant ARGS_MARK
: mem= ( a a n -- f)
for aft 2dup c@ swap c@ <> if 2drop rdrop 0 exit then 1+ swap 1+ then next 2drop -1 ;
forth definitions also internals
@ -60,6 +61,11 @@ internals internalized definitions
+TAB flags'or! AFT
+TAB flags'or! FOR
-TAB flags'or! NEXT
+TAB flags'or! DO
ARGS_MARK +TAB or flags'or! ?DO
ARGS_MARK -TAB or flags'or! +LOOP
ARGS_MARK -TAB or flags'or! LOOP
ARGS_MARK flags'or! LEAVE
forth definitions
@ -90,10 +96,7 @@ variable indent
dup @ ['] BRANCH @ =
over @ ['] 0BRANCH @ = or
over @ ['] DONEXT @ = or
over ['] (?do) = or
over ['] (+loop) = or
over ['] (loop) = or
over ['] (leave) = or
over >flags ARGS_MARK and or
if swap cell+ swap then
drop
;

View File

@ -57,7 +57,6 @@ transfer{
immediate? input-buffer ?echo ?arrow. arrow
evaluate-buffer aliteral value-bind
leaving( )leaving leaving leaving,
(do) (?do) (+loop) (loop) (leave)
parse-quote digit $@ raw.s
tib-setup input-limit
[SKIP] [SKIP]' raw-ok boot-prompt free.
@ -71,6 +70,8 @@ cleave begin cleave again cleave until
cleave ahead cleave then cleave if
cleave else cleave while cleave repeat
cleave aft cleave for cleave next
cleave do cleave ?do cleave +loop
cleave loop cleave leave
forth definitions