| \G equivalent to @code{] literal} |
\G equivalent to @code{] literal} |
| ] postpone literal ; |
] postpone literal ; |
| |
|
| |
[ifundef] in-dictionary? |
| : in-dictionary? ( x -- f ) |
: in-dictionary? ( x -- f ) |
| forthstart dictionary-end within ; |
forthstart dictionary-end within ; |
| |
[endif] |
| |
|
| : in-return-stack? ( addr -- f ) |
: in-return-stack? ( addr -- f ) |
| rp0 @ swap - [ forthstart 6 cells + ]L @ u< ; |
rp0 @ swap - [ forthstart 6 cells + ]L @ u< ; |
| \ const-does> |
\ const-does> |
| |
|
| : compile-literals ( w*u u -- ; run-time: -- w*u ) recursive |
: compile-literals ( w*u u -- ; run-time: -- w*u ) recursive |
| |
\ compile u literals, starting with the bottommost one |
| ?dup-if |
?dup-if |
| swap >r 1- compile-literals |
swap >r 1- compile-literals |
| r> POSTPONE literal |
r> POSTPONE literal |
| endif ; |
endif ; |
| |
|
| : compile-fliterals ( r*u u -- ; run-time: -- w*u ) recursive |
: compile-fliterals ( r*u u -- ; run-time: -- w*u ) recursive |
| |
\ compile u fliterals, starting with the bottommost one |
| ?dup-if |
?dup-if |
| { F: r } 1- compile-fliterals |
{ F: r } 1- compile-fliterals |
| r POSTPONE fliteral |
r POSTPONE fliteral |
| endif ; |
endif ; |
| |
|
| : (const-does>) ( w*uw r*ur uw ur target "name" -- ) |
: (const-does>) ( w*uw r*ur uw ur target "name" -- ) |
| |
\ define a colon definition "name" containing w*uw r*ur as |
| |
\ literals and a call to target. |
| { uw ur target } |
{ uw ur target } |
| header docol: cfa, \ start colon def without stack junk |
header docol: cfa, \ start colon def without stack junk |
| ur compile-fliterals uw compile-literals |
ur compile-fliterals uw compile-literals |
| target compile, POSTPONE exit reveal ; |
target compile, POSTPONE exit reveal ; |
| |
|
| : const-does> ( run-time: w*uw r*ur uw ur "name" -- ) |
: const-does> ( run-time: w*uw r*ur uw ur "name" -- ) |
| |
\G Defines @var{name} and returns.@sp 0 |
| |
\G @var{name} execution: pushes @var{w*uw r*ur}, then performs the |
| |
\G code following the @code{const-does>}. |
| here >r 0 POSTPONE literal |
here >r 0 POSTPONE literal |
| POSTPONE (const-does>) |
POSTPONE (const-does>) |
| POSTPONE ; |
POSTPONE ; |
| noname : POSTPONE rdrop |
noname : POSTPONE rdrop |
| lastxt r> cell+ ! \ patch the literal |
lastxt r> cell+ ! \ patch the literal |
| ; immediate |
; immediate |
| |
|
| |
\ !! rewrite slurp-file using slurp-fid |
| |
: slurp-file ( c-addr1 u1 -- c-addr2 u2 ) |
| |
\G @var{c-addr1 u1} is the filename, @var{c-addr2 u2} is the file's contents |
| |
r/o bin open-file throw >r |
| |
r@ file-size throw abort" file too large" |
| |
dup allocate throw swap |
| |
2dup r@ read-file throw over <> abort" could not read whole file" |
| |
r> close-file throw ; |
| |
|
| |
: slurp-fid { fid -- addr u } |
| |
\G @var{addr u} is the content of the file @var{fid} |
| |
0 0 begin ( awhole uwhole ) |
| |
dup 1024 + dup >r extend-mem ( anew awhole uwhole R: unew ) |
| |
rot r@ fid read-file throw ( awhole uwhole uread R: unew ) |
| |
r> 2dup = |
| |
while ( awhole uwhole uread unew ) |
| |
2drop |
| |
repeat |
| |
- + dup >r resize throw r> ; |
