| \ converts primitives to, e.g., C code |
\ converts primitives to, e.g., C code |
| |
|
| \ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
| |
|
| \ This file is part of Gforth. |
\ This file is part of Gforth. |
| |
|
| |
|
| \ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
| \ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
| \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| |
|
| |
|
| \ This is not very nice (hard limits, no checking, assumes 1 chars = 1) |
\ This is not very nice (hard limits, no checking, assumes 1 chars = 1) |
| |
|
| warnings off |
warnings off |
| |
|
| require interpretation.fs |
[IFUNDEF] vocabulary \ we are executed just with kernel image |
| require debugging.fs |
\ load the rest that is needed |
| [IFUNDEF] vocabulary include search-order.fs [THEN] |
\ (require fails because this file is needed from a |
| [IFUNDEF] environment? include environ.fs [THEN] |
\ different directory with the wordlibraries) |
| include gray.fs |
include ./search.fs |
| |
include ./extend.fs |
| |
[THEN] |
| |
|
| |
[IFUNDEF] environment? |
| |
include ./environ.fs |
| |
[THEN] |
| |
|
| |
: struct% struct ; \ struct is redefined in gray |
| |
|
| |
include ./gray.fs |
| |
|
| 100 constant max-effect \ number of things on one side of a stack effect |
100 constant max-effect \ number of things on one side of a stack effect |
| 255 constant maxchar |
255 constant maxchar |
| #tab constant tab-char |
#tab constant tab-char |
| #lf constant nl-char |
#lf constant nl-char |
| |
|
| : read-whole-file ( c-addr1 file-id -- c-addr2 ) |
|
| \ reads the contents of the file file-id puts it into memory at c-addr1 |
|
| \ c-addr2 is the first address after the file block |
|
| >r dup -1 r> read-file throw + ; |
|
| |
|
| variable rawinput \ pointer to next character to be scanned |
variable rawinput \ pointer to next character to be scanned |
| variable endrawinput \ pointer to the end of the input (the char after the last) |
variable endrawinput \ pointer to the end of the input (the char after the last) |
| variable cookedinput \ pointer to the next char to be parsed |
variable cookedinput \ pointer to the next char to be parsed |
| 1 line ! |
1 line ! |
| 2variable filename \ filename of original input file |
2variable filename \ filename of original input file |
| 0 0 filename 2! |
0 0 filename 2! |
| |
2variable f-comment |
| |
0 0 f-comment 2! |
| variable skipsynclines \ are sync lines ("#line ...") invisible to the parser? |
variable skipsynclines \ are sync lines ("#line ...") invisible to the parser? |
| skipsynclines on |
skipsynclines on |
| |
|
| : printprim ( -- ) |
: printprim ( -- ) |
| output @ execute ; |
output @ execute ; |
| |
|
| : field |
struct% |
| <builds-field ( n1 n2 -- n3 ) |
cell% 2* field stack-pointer \ stackpointer name |
| does> ( addr1 -- addr2 ) |
cell% 2* field stack-cast \ cast string for assignments to stack elements |
| @ + ; |
cell% field stack-in-index-xt \ ( in-size item -- in-index ) |
| |
cell% field stack-in \ number of stack items in effect in |
| : const-field |
cell% field stack-out \ number of stack items in effect out |
| <builds-field ( n1 n2 -- n3 ) |
end-struct stack% |
| does> ( addr -- w ) |
|
| @ + @ ; |
struct% |
| |
cell% 2* field item-name \ name, excluding stack prefixes |
| struct |
cell% field item-stack \ descriptor for the stack used, 0 is default |
| 2 cells field item-name |
cell% field item-type \ descriptor for the item type |
| cell field item-d-offset |
cell% field item-offset \ offset in stack items, 0 for the deepest element |
| cell field item-f-offset |
end-struct item% |
| cell field item-type |
|
| constant item-descr |
struct% |
| |
cell% 2* field type-c-name |
| |
cell% field type-stack \ default stack |
| |
cell% field type-size \ size of type in stack items |
| |
cell% field type-fetch \ xt of fetch code generator ( item -- ) |
| |
cell% field type-store \ xt of store code generator ( item -- ) |
| |
end-struct type% |
| |
|
| |
: stack-in-index ( in-size item -- in-index ) |
| |
item-offset @ - 1- ; |
| |
|
| |
: inst-in-index ( in-size item -- in-index ) |
| |
nip dup item-offset @ swap item-type @ type-size @ + 1- ; |
| |
|
| |
: make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- ) |
| |
create stack% %allot >r |
| |
save-mem r@ stack-cast 2! |
| |
save-mem r@ stack-pointer 2! |
| |
['] stack-in-index r> stack-in-index-xt ! ; |
| |
|
| |
s" sp" save-mem s" (Cell)" make-stack data-stack |
| |
s" fp" save-mem s" " make-stack fp-stack |
| |
s" rp" save-mem s" (Cell)" make-stack return-stack |
| |
s" ip" save-mem s" error don't use # on results" make-stack inst-stream |
| |
' inst-in-index inst-stream stack-in-index-xt ! |
| |
\ !! initialize stack-in and stack-out |
| |
|
| |
\ stack items |
| |
|
| |
: init-item ( addr u addr1 -- ) |
| |
\ initialize item at addr1 with name addr u |
| |
\ !! remove stack prefix |
| |
dup item% %size erase |
| |
item-name 2! ; |
| |
|
| |
\ various variables for storing stuff of one primitive |
| |
|
| 2variable forth-name |
2variable forth-name |
| 2variable wordset |
2variable wordset |
| 2variable c-code |
2variable c-code |
| 2variable forth-code |
2variable forth-code |
| 2variable stack-string |
2variable stack-string |
| create effect-in max-effect item-descr * allot |
create effect-in max-effect item% %size * allot |
| create effect-out max-effect item-descr * allot |
create effect-out max-effect item% %size * allot |
| variable effect-in-end ( pointer ) |
variable effect-in-end ( pointer ) |
| variable effect-out-end ( pointer ) |
variable effect-out-end ( pointer ) |
| 2variable effect-in-size |
|
| 2variable effect-out-size |
|
| variable c-line |
variable c-line |
| 2variable c-filename |
2variable c-filename |
| variable name-line |
variable name-line |
| 2variable last-name-filename |
2variable last-name-filename |
| |
|
| variable primitive-number -10 primitive-number ! |
variable primitive-number -10 primitive-number ! |
| |
Variable function-number 0 function-number ! |
| |
|
| \ for several reasons stack items of a word are stored in a wordlist |
\ for several reasons stack items of a word are stored in a wordlist |
| \ since neither forget nor marker are implemented yet, we make a new |
\ since neither forget nor marker are implemented yet, we make a new |
| 0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr ) |
0. r> 6 chars + 20 >number drop >r drop line ! r> ( c-addr ) |
| dup c@ bl = if |
dup c@ bl = if |
| char+ dup c@ [char] " <> abort" sync line syntax" |
char+ dup c@ [char] " <> abort" sync line syntax" |
| char+ dup 100 [char] " scan drop swap 2dup - save-string filename 2! |
char+ dup 100 [char] " scan drop swap 2dup - save-mem filename 2! |
| char+ |
char+ |
| endif |
endif |
| dup c@ nl-char <> abort" sync line syntax" |
dup c@ nl-char <> abort" sync line syntax" |
| |
|
| char a char z .. char A char Z .. union char _ singleton union charclass letter |
char a char z .. char A char Z .. union char _ singleton union charclass letter |
| char 0 char 9 .. charclass digit |
char 0 char 9 .. charclass digit |
| bl singleton charclass blank |
bl singleton tab-char over add-member charclass white |
| tab-char singleton charclass tab |
|
| nl-char singleton eof-char over add-member complement charclass nonl |
nl-char singleton eof-char over add-member complement charclass nonl |
| nl-char singleton eof-char over add-member char : over add-member complement charclass nocolonnl |
nl-char singleton eof-char over add-member |
| |
char : over add-member complement charclass nocolonnl |
| |
bl 1+ maxchar .. char \ singleton complement intersection |
| |
charclass nowhitebq |
| bl 1+ maxchar .. charclass nowhite |
bl 1+ maxchar .. charclass nowhite |
| char " singleton eof-char over add-member complement charclass noquote |
char " singleton eof-char over add-member complement charclass noquote |
| nl-char singleton charclass nl |
nl-char singleton charclass nl |
| |
|
| |
|
| (( letter (( letter || digit )) ** |
(( letter (( letter || digit )) ** |
| )) <- c-name ( -- ) |
)) <- c-ident ( -- ) |
| |
|
| nowhite ++ |
(( ` # ?? (( letter || digit || ` : )) ** |
| <- name ( -- ) |
)) <- stack-ident ( -- ) |
| |
|
| (( ` \ nonl ** nl |
(( nowhitebq nowhite ** )) |
| )) <- comment ( -- ) |
<- forth-ident ( -- ) |
| |
|
| (( {{ effect-in }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-in-end ! }} |
Variable forth-flag |
| ` - ` - blank ** |
Variable c-flag |
| {{ effect-out }} (( {{ start }} c-name {{ end 2 pick item-name 2! item-descr + }} blank ** )) ** {{ effect-out-end ! }} |
|
| |
(( (( ` e || ` E )) {{ start }} nonl ** |
| |
{{ end evaluate }} |
| |
)) <- eval-comment ( ... -- ... ) |
| |
|
| |
(( (( ` f || ` F )) {{ start }} nonl ** |
| |
{{ end forth-flag @ IF type cr ELSE 2drop THEN }} |
| |
)) <- forth-comment ( -- ) |
| |
|
| |
(( (( ` c || ` C )) {{ start }} nonl ** |
| |
{{ end c-flag @ IF type cr ELSE 2drop THEN }} |
| |
)) <- c-comment ( -- ) |
| |
|
| |
(( ` - nonl ** {{ |
| |
forth-flag @ IF ." [ELSE]" cr THEN |
| |
c-flag @ IF ." #else" cr THEN }} |
| |
)) <- else-comment |
| |
|
| |
(( ` + {{ start }} nonl ** {{ end |
| |
dup |
| |
IF c-flag @ |
| |
IF ." #ifdef HAS_" bounds ?DO I c@ toupper emit LOOP cr |
| |
THEN |
| |
forth-flag @ |
| |
IF ." has? " type ." [IF]" cr THEN |
| |
ELSE 2drop |
| |
c-flag @ IF ." #endif" cr THEN |
| |
forth-flag @ IF ." [THEN]" cr THEN |
| |
THEN }} |
| |
)) <- if-comment |
| |
|
| |
(( (( eval-comment || forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body |
| |
|
| |
(( ` \ comment-body nl )) <- comment ( -- ) |
| |
|
| |
(( {{ start }} stack-ident {{ end 2 pick init-item item% %size + }} white ** )) ** |
| |
<- stack-items |
| |
|
| |
(( {{ effect-in }} stack-items {{ effect-in-end ! }} |
| |
` - ` - white ** |
| |
{{ effect-out }} stack-items {{ effect-out-end ! }} |
| )) <- stack-effect ( -- ) |
)) <- stack-effect ( -- ) |
| |
|
| (( {{ s" " doc 2! s" " forth-code 2! }} |
(( {{ s" " doc 2! s" " forth-code 2! s" " wordset 2! }} |
| (( comment || nl )) ** |
|
| (( {{ line @ name-line ! filename 2@ name-filename 2! }} |
(( {{ line @ name-line ! filename 2@ name-filename 2! }} |
| {{ start }} name {{ end 2dup forth-name 2! c-name 2! }} tab ++ |
{{ start }} forth-ident {{ end 2dup forth-name 2! c-name 2! }} white ++ |
| {{ start }} stack-effect {{ end stack-string 2! }} tab ++ |
` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white ** |
| {{ start }} name {{ end wordset 2! }} tab ** |
(( {{ start }} forth-ident {{ end wordset 2! }} white ** |
| (( {{ start }} c-name {{ end c-name 2! }} )) ?? nl |
(( {{ start }} c-ident {{ end c-name 2! }} )) ?? |
| |
)) ?? nl |
| )) |
)) |
| (( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ?? |
(( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " white ** nl )) ?? |
| {{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl )) ** {{ end c-code 2! skipsynclines on }} |
{{ skipsynclines off line @ c-line ! filename 2@ c-filename 2! start }} (( nocolonnl nonl ** nl white ** )) ** {{ end c-code 2! skipsynclines on }} |
| (( ` : nl |
(( ` : white ** nl |
| {{ start }} (( nonl ++ nl )) ++ {{ end forth-code 2! }} |
{{ start }} (( nonl ++ nl white ** )) ++ {{ end forth-code 2! }} |
| )) ?? |
)) ?? {{ printprim }} |
| (( nl || eof )) |
(( nl || eof )) |
| )) <- primitive ( -- ) |
)) <- primitive ( -- ) |
| |
|
| (( (( primitive {{ printprim }} )) ** eof )) |
(( (( comment || primitive || nl white ** )) ** eof )) |
| parser primitives2something |
parser primitives2something |
| warnings @ [IF] |
warnings @ [IF] |
| .( parser generated ok ) cr |
.( parser generated ok ) cr |
| \ fileid is for the input file, xt ( -- ) is for the output word |
\ fileid is for the input file, xt ( -- ) is for the output word |
| output ! |
output ! |
| here dup rawinput ! cookedinput ! |
here dup rawinput ! cookedinput ! |
| here swap read-whole-file |
here unused rot read-file throw |
| dup endrawinput ! |
dup here + endrawinput ! |
| here - allot |
allot |
| align |
align |
| checksyncline |
checksyncline |
| \ begin |
\ begin |
| |
|
| \ types |
\ types |
| |
|
| struct |
: stack-access ( n stack -- ) |
| 2 cells field type-c-name |
\ print a stack access at index n of stack |
| cell const-field type-d-size |
stack-pointer 2@ type |
| cell const-field type-f-size |
dup |
| cell const-field type-fetch-handler |
|
| cell const-field type-store-handler |
|
| constant type-description |
|
| |
|
| : data-stack-access ( n1 n2 n3 -- ) |
|
| \ n1 is the offset of the accessed item, n2, n3 are effect-*-size |
|
| drop swap - 1- dup |
|
| if |
if |
| ." sp[" 0 .r ." ]" |
." [" 0 .r ." ]" |
| else |
else |
| drop ." TOS" |
drop ." TOS" |
| endif ; |
endif ; |
| |
|
| : fp-stack-access ( n1 n2 n3 -- ) |
: item-in-index { item -- n } |
| \ n1 is the offset of the accessed item, n2, n3 are effect-*-size |
\ n is the index of item (in the in-effect) |
| nip swap - 1- dup |
item item-stack @ dup >r stack-in @ ( in-size r:stack ) |
| if |
item r> stack-in-index-xt @ execute ; |
| ." fp[" 0 .r ." ]" |
|
| else |
|
| drop ." FTOS" |
|
| endif ; |
|
| |
|
| : fetch-single ( item -- ) |
: fetch-single ( item -- ) |
| |
\ fetch a single stack item from its stack |
| >r |
>r |
| r@ item-name 2@ type |
r@ item-name 2@ type |
| ." = (" |
." = (" |
| r@ item-type @ type-c-name 2@ type ." ) " |
r@ item-type @ type-c-name 2@ type ." ) " |
| r@ item-d-offset @ effect-in-size 2@ data-stack-access ." ;" cr |
r@ item-in-index r@ item-stack @ stack-access |
| |
." ;" cr |
| rdrop ; |
rdrop ; |
| |
|
| : fetch-double ( item -- ) |
: fetch-double ( item -- ) |
| |
\ fetch a double stack item from its stack |
| >r |
>r |
| ." FETCH_DCELL(" |
." FETCH_DCELL(" |
| r@ item-name 2@ type ." , " |
r@ item-name 2@ type ." , " |
| r@ item-d-offset @ dup effect-in-size 2@ data-stack-access |
r@ item-in-index r@ item-stack @ 2dup stack-access |
| ." , " 1+ effect-in-size 2@ data-stack-access |
." , " -1 under+ stack-access |
| ." );" cr |
." );" cr |
| rdrop ; |
rdrop ; |
| |
|
| : fetch-float ( item -- ) |
: same-as-in? ( item -- f ) |
| >r |
\ f is true iff the offset and stack of item is the same as on input |
| r@ item-name 2@ type |
|
| ." = " |
|
| \ ." (" r@ item-type @ type-c-name 2@ type ." ) " |
|
| r@ item-f-offset @ effect-in-size 2@ fp-stack-access ." ;" cr |
|
| rdrop ; |
|
| |
|
| : d-same-as-in? ( item -- f ) |
|
| \ f is true iff the offset of item is the same as on input |
|
| >r |
>r |
| r@ item-name 2@ items @ search-wordlist 0= |
r@ item-name 2@ items @ search-wordlist 0= |
| abort" bug" |
abort" bug" |
| if \ item first appeared in output |
if \ item first appeared in output |
| drop false |
drop false |
| else |
else |
| item-d-offset @ r@ item-d-offset @ = |
dup item-stack @ r@ item-stack @ = |
| |
swap item-offset @ r@ item-offset @ = and |
| endif |
endif |
| rdrop ; |
rdrop ; |
| |
|
| : is-in-tos? ( item -- f ) |
: item-out-index ( item -- n ) |
| \ true if item has the same offset as the input TOS |
\ n is the index of item (in the in-effect) |
| item-d-offset @ 1+ effect-in-size 2@ drop = ; |
>r r@ item-stack @ stack-out @ r> item-offset @ - 1- ; |
| |
|
| : really-store-single ( item -- ) |
: really-store-single ( item -- ) |
| >r |
>r |
| r@ item-d-offset @ effect-out-size 2@ data-stack-access ." = (Cell)" |
r@ item-out-index r@ item-stack @ stack-access ." = " |
| |
r@ item-stack @ stack-cast 2@ type |
| r@ item-name 2@ type ." ;" |
r@ item-name 2@ type ." ;" |
| rdrop ; |
rdrop ; |
| |
|
| : store-single ( item -- ) |
: store-single ( item -- ) |
| >r |
>r |
| r@ d-same-as-in? |
r@ same-as-in? |
| if |
if |
| r@ is-in-tos? |
r@ item-in-index 0= r@ item-out-index 0= xor |
| if |
if |
| ." IF_TOS(" r@ really-store-single ." );" cr |
." IF_" r@ item-stack @ stack-pointer 2@ type |
| |
." TOS(" r@ really-store-single ." );" cr |
| endif |
endif |
| else |
else |
| r@ really-store-single cr |
r@ really-store-single cr |
| \ !! store optimization is not performed, because it is not yet needed |
\ !! store optimization is not performed, because it is not yet needed |
| >r |
>r |
| ." STORE_DCELL(" r@ item-name 2@ type ." , " |
." STORE_DCELL(" r@ item-name 2@ type ." , " |
| r@ item-d-offset @ dup effect-out-size 2@ data-stack-access |
r@ item-out-index r@ item-stack @ 2dup stack-access |
| ." , " 1+ effect-out-size 2@ data-stack-access |
." , " -1 under+ stack-access |
| ." );" cr |
." );" cr |
| rdrop ; |
rdrop ; |
| |
|
| : f-same-as-in? ( item -- f ) |
: single ( -- xt1 xt2 n ) |
| \ f is true iff the offset of item is the same as on input |
['] fetch-single ['] store-single 1 ; |
| >r |
|
| r@ item-name 2@ items @ search-wordlist 0= |
|
| abort" bug" |
|
| execute @ |
|
| dup r@ = |
|
| if \ item first appeared in output |
|
| drop false |
|
| else |
|
| item-f-offset @ r@ item-f-offset @ = |
|
| endif |
|
| rdrop ; |
|
| |
|
| : is-in-ftos? ( item -- f ) |
|
| \ true if item has the same offset as the input TOS |
|
| item-f-offset @ 1+ effect-in-size 2@ nip = ; |
|
| |
|
| : really-store-float ( item -- ) |
|
| >r |
|
| r@ item-f-offset @ effect-out-size 2@ fp-stack-access ." = " |
|
| r@ item-name 2@ type ." ;" |
|
| rdrop ; |
|
| |
|
| : store-float ( item -- ) |
|
| >r |
|
| r@ f-same-as-in? |
|
| if |
|
| r@ is-in-ftos? |
|
| if |
|
| ." IF_FTOS(" r@ really-store-float ." );" cr |
|
| endif |
|
| else |
|
| r@ really-store-float cr |
|
| endif |
|
| rdrop ; |
|
| |
|
| : single-type ( -- xt1 xt2 n1 n2 ) |
|
| ['] fetch-single ['] store-single 1 0 ; |
|
| |
|
| : double-type ( -- xt1 xt2 n1 n2 ) |
|
| ['] fetch-double ['] store-double 2 0 ; |
|
| |
|
| : float-type ( -- xt1 xt2 n1 n2 ) |
: double ( -- xt1 xt2 n ) |
| ['] fetch-float ['] store-float 0 1 ; |
['] fetch-double ['] store-double 2 ; |
| |
|
| : s, ( addr u -- ) |
: s, ( addr u -- ) |
| \ allocate a string |
\ allocate a string |
| here swap dup allot move ; |
here swap dup allot move ; |
| |
|
| : starts-with ( addr u xt1 xt2 n1 n2 "prefix" -- ) |
wordlist constant prefixes |
| |
|
| |
: declare ( addr "name" -- ) |
| |
\ remember that there is a stack item at addr called name |
| |
create , ; |
| |
|
| |
: !default ( w addr -- ) |
| |
dup @ if |
| |
2drop \ leave nonzero alone |
| |
else |
| |
! |
| |
endif ; |
| |
|
| |
: create-type { addr u xt1 xt2 n stack -- } ( "prefix" -- ) |
| \ describes a type |
\ describes a type |
| \ addr u specifies the C type name |
\ addr u specifies the C type name |
| \ n1 is the size of the type on the data stack |
|
| \ n2 is the size of the type on the FP stack |
|
| \ stack effect entries of the type start with prefix |
\ stack effect entries of the type start with prefix |
| >r >r >r >r |
create type% %allot >r |
| dup >r here >r s, |
addr u save-mem r@ type-c-name 2! |
| create |
xt1 r@ type-fetch ! |
| r> r> 2, |
xt2 r@ type-store ! |
| r> r> r> , r> , swap , , ; |
n r@ type-size ! |
| |
stack r@ type-stack ! |
| wordlist constant types |
rdrop ; |
| get-current |
|
| types set-current |
: type-prefix ( xt1 xt2 n stack "prefix" -- ) |
| |
create-type |
| s" Bool" single-type starts-with f |
does> ( item -- ) |
| s" Char" single-type starts-with c |
\ initialize item |
| s" Cell" single-type starts-with n |
{ item typ } |
| s" Cell" single-type starts-with w |
typ item item-type ! |
| s" UCell" single-type starts-with u |
typ type-stack @ item item-stack !default |
| s" DCell" double-type starts-with d |
item item-name 2@ items @ search-wordlist 0= if \ new name |
| s" UDCell" double-type starts-with ud |
item item-name 2@ 2dup nextname item declare |
| s" Float" float-type starts-with r |
typ type-c-name 2@ type space type ." ;" cr |
| s" Cell *" single-type starts-with a_ |
else |
| s" Char *" single-type starts-with c_ |
drop |
| s" Float *" single-type starts-with f_ |
endif ; |
| s" DFloat *" single-type starts-with df_ |
|
| s" SFloat *" single-type starts-with sf_ |
: execute-prefix ( item addr1 u1 -- ) |
| s" Xt" single-type starts-with xt |
\ execute the word ( item -- ) associated with the longest prefix |
| s" WID" single-type starts-with wid |
\ of addr1 u1 |
| s" F83Name *" single-type starts-with f83name |
|
| |
|
| set-current |
|
| |
|
| : get-type ( addr1 u1 -- type-descr ) |
|
| \ get the type of the name in addr1 u1 |
|
| \ type-descr is a pointer to a type-descriptor |
|
| 0 swap ?do |
0 swap ?do |
| dup i types search-wordlist |
dup i prefixes search-wordlist |
| if \ ok, we have the type ( addr1 xt ) |
if \ ok, we have the type ( item addr1 xt ) |
| execute nip |
nip execute |
| UNLOOP EXIT |
UNLOOP EXIT |
| endif |
endif |
| -1 s+loop |
-1 s+loop |
| \ we did not find a type, abort |
\ we did not find a type, abort |
| true abort" unknown type prefix" ; |
true abort" unknown prefix" ; |
| |
|
| : declare ( addr "name" -- ) |
|
| \ remember that there is a stack item at addr called name |
|
| create , ; |
|
| |
|
| : declaration ( item -- ) |
: declaration ( item -- ) |
| dup item-name 2@ items @ search-wordlist |
dup item-name 2@ execute-prefix ; |
| if \ already declared ( item xt ) |
|
| execute @ item-type @ swap item-type ! |
: stack-prefix ( stack "prefix" -- ) |
| else ( addr ) |
name tuck nextname create ( stack length ) 2, |
| dup item-name 2@ nextname dup declare ( addr ) |
does> ( item -- ) |
| dup >r item-name 2@ 2dup get-type ( addr1 u type-descr ) |
2@ { item stack prefix-length } |
| dup r> item-type ! ( addr1 u type-descr ) |
item item-name 2@ prefix-length /string item item-name 2! |
| type-c-name 2@ type space type ." ;" cr |
stack item item-stack ! |
| endif ; |
item declaration ; |
| |
|
| : declaration-list ( addr1 addr2 -- ) |
: declaration-list ( addr1 addr2 -- ) |
| swap ?do |
swap ?do |
| i declaration |
i declaration |
| item-descr +loop ; |
item% %size +loop ; |
| |
|
| : fetch ( addr -- ) |
|
| dup item-type @ type-fetch-handler execute ; |
|
| |
|
| : declarations ( -- ) |
: declarations ( -- ) |
| wordlist dup items ! set-current |
wordlist dup items ! set-current |
| \ the leftmost (i.e. deepest) item has offset 0 |
\ the leftmost (i.e. deepest) item has offset 0 |
| \ the rightmost item has the highest offset |
\ the rightmost item has the highest offset |
| |
|
| : compute-offset ( n1 n2 item -- n3 n4 ) |
: compute-offset { item xt -- } |
| \ n1, n3 are data-stack-offsets |
\ xt specifies in/out; update stack-in/out and set item-offset |
| \ n2, n4 are the fp-stack-offsets |
item item-type @ type-size @ |
| >r |
item item-stack @ xt execute dup @ >r +! |
| swap dup r@ item-d-offset ! |
r> item item-offset ! ; |
| r@ item-type @ type-d-size + |
|
| swap dup r@ item-f-offset ! |
: compute-list ( addr1 addr2 xt -- ) |
| r@ item-type @ type-f-size + |
{ xt } |
| rdrop ; |
swap u+do |
| |
i xt compute-offset |
| |
item% %size +loop ; |
| |
|
| : compute-list ( addr1 addr2 -- n1 n2 ) |
: clear-stack { -- } |
| \ n1, n2 are the final offsets |
dup stack-in off stack-out off ; |
| 0 0 2swap swap ?do |
|
| i compute-offset |
|
| item-descr +loop ; |
|
| |
|
| : compute-offsets ( -- ) |
: compute-offsets ( -- ) |
| effect-in effect-in-end @ compute-list effect-in-size 2! |
data-stack clear-stack fp-stack clear-stack return-stack clear-stack |
| effect-out effect-out-end @ compute-list effect-out-size 2! ; |
inst-stream clear-stack |
| |
effect-in effect-in-end @ ['] stack-in compute-list |
| |
effect-out effect-out-end @ ['] stack-out compute-list |
| |
inst-stream stack-out @ 0<> abort" # can only be on the input side" ; |
| |
|
| : flush-tos ( -- ) |
: flush-a-tos { stack -- } |
| effect-in-size 2@ effect-out-size 2@ |
stack stack-out @ 0<> stack stack-in @ 0= and |
| 0<> rot 0= and |
|
| if |
|
| ." IF_FTOS(fp[0] = FTOS);" cr |
|
| endif |
|
| 0<> swap 0= and |
|
| if |
if |
| ." IF_TOS(sp[0] = TOS);" cr |
." IF_" stack stack-pointer 2@ 2dup type ." TOS(" |
| |
2dup type ." [0] = " type ." TOS);" cr |
| endif ; |
endif ; |
| |
|
| : fill-tos ( -- ) |
: flush-tos ( -- ) |
| effect-in-size 2@ effect-out-size 2@ |
data-stack flush-a-tos |
| 0= rot 0<> and |
fp-stack flush-a-tos |
| if |
return-stack flush-a-tos ; |
| ." IF_FTOS(FTOS = fp[0]);" cr |
|
| endif |
: fill-a-tos { stack -- } |
| 0= swap 0<> and |
stack stack-out @ 0= stack stack-in @ 0<> and |
| if |
if |
| ." IF_TOS(TOS = sp[0]);" cr |
." IF_" stack stack-pointer 2@ 2dup type ." TOS(" |
| |
2dup type ." TOS = " type ." [0]);" cr |
| endif ; |
endif ; |
| |
|
| |
: fill-tos ( -- ) |
| |
\ !! inst-stream for prefetching? |
| |
fp-stack fill-a-tos |
| |
data-stack fill-a-tos |
| |
return-stack fill-a-tos ; |
| |
|
| |
: fetch ( addr -- ) |
| |
dup item-type @ type-fetch @ execute ; |
| |
|
| : fetches ( -- ) |
: fetches ( -- ) |
| effect-in-end @ effect-in ?do |
effect-in-end @ effect-in ?do |
| i fetch |
i fetch |
| item-descr +loop ; |
item% %size +loop ; |
| |
|
| |
: stack-pointer-update { stack -- } |
| |
\ stack grow downwards |
| |
stack stack-in @ stack stack-out @ - |
| |
?dup-if \ this check is not necessary, gcc would do this for us |
| |
stack stack-pointer 2@ type ." += " 0 .r ." ;" cr |
| |
endif ; |
| |
|
| |
: inst-pointer-update ( -- ) |
| |
inst-stream stack-in @ ?dup-if |
| |
." INC_IP(" 0 .r ." );" cr |
| |
endif ; |
| |
|
| : stack-pointer-updates ( -- ) |
: stack-pointer-updates ( -- ) |
| \ we need not check if an update is a noop; gcc does this for us |
inst-pointer-update |
| effect-in-size 2@ |
data-stack stack-pointer-update |
| effect-out-size 2@ |
fp-stack stack-pointer-update |
| rot swap - ( d-in d-out f-diff ) |
return-stack stack-pointer-update ; |
| rot rot - ( f-diff d-diff ) |
|
| ?dup IF ." sp += " 0 .r ." ;" cr THEN |
|
| ?dup IF ." fp += " 0 .r ." ;" cr THEN ; |
|
| |
|
| : store ( item -- ) |
: store ( item -- ) |
| \ f is true if the item should be stored |
\ f is true if the item should be stored |
| \ f is false if the store is probably not necessary |
\ f is false if the store is probably not necessary |
| dup item-type @ type-store-handler execute ; |
dup item-type @ type-store @ execute ; |
| |
|
| : stores ( -- ) |
: stores ( -- ) |
| effect-out-end @ effect-out ?do |
effect-out-end @ effect-out ?do |
| i store |
i store |
| item-descr +loop ; |
item% %size +loop ; |
| |
|
| : .stack-list ( start end -- ) |
: output-c-tail ( -- ) |
| swap ?do |
\ the final part of the generated C code |
| i item-name 2@ type space |
." NEXT_P1;" cr |
| item-descr +loop ; |
stores |
| |
fill-tos |
| |
." NEXT_P2;" cr ; |
| |
|
| |
: type-c ( c-addr u -- ) |
| |
\ like TYPE, but replaces "TAIL;" with tail code |
| |
begin ( c-addr1 u1 ) |
| |
2dup s" TAIL;" search |
| |
while ( c-addr1 u1 c-addr3 u3 ) |
| |
2dup 2>r drop nip over - type |
| |
output-c-tail |
| |
2r> 5 /string |
| |
\ !! resync #line missing |
| |
repeat |
| |
2drop type ; |
| |
|
| : output-c ( -- ) |
: output-c ( -- ) |
| ." I_" c-name 2@ type ." : /* " forth-name 2@ type ." ( " stack-string 2@ type ." ) */" cr |
." I_" c-name 2@ type ." : /* " forth-name 2@ type ." ( " stack-string 2@ type ." ) */" cr |
| stack-pointer-updates |
stack-pointer-updates |
| ." {" cr |
." {" cr |
| ." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr |
." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr |
| |
c-code 2@ type-c |
| |
." }" cr |
| |
output-c-tail |
| |
." }" cr |
| |
cr |
| |
; |
| |
|
| |
: print-type-prefix ( type -- ) |
| |
body> >head .name ; |
| |
|
| |
: disasm-arg { item -- } |
| |
item item-stack @ inst-stream = if |
| |
." printarg_" item item-type @ print-type-prefix |
| |
." (ip[" item item-offset @ 1+ 0 .r ." ]);" cr |
| |
endif ; |
| |
|
| |
: disasm-args ( -- ) |
| |
effect-in-end @ effect-in ?do |
| |
i disasm-arg |
| |
item% %size +loop ; |
| |
|
| |
: output-disasm ( -- ) |
| |
\ generate code for disassembling VM instructions |
| |
." if (ip[0] == prim[" function-number @ 0 .r ." ]) {" cr |
| |
." fputs(" [char] " emit forth-name 2@ type [char] " emit ." ,stdout);" cr |
| |
." /* " declarations ." */" cr |
| |
compute-offsets |
| |
disasm-args |
| |
." ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr |
| |
." } else " |
| |
1 function-number +! ; |
| |
|
| |
: stack-used? { stack -- f } |
| |
stack stack-in @ stack stack-out @ or 0<> ; |
| |
|
| |
: output-funclabel ( -- ) |
| |
1 function-number +! |
| |
." &I_" c-name 2@ type ." ," cr ; |
| |
|
| |
: output-forthname ( -- ) |
| |
1 function-number +! |
| |
'" emit forth-name 2@ type '" emit ." ," cr ; |
| |
|
| |
: output-c-func ( -- ) |
| |
\ used for word libraries |
| |
1 function-number +! |
| |
." Cell * I_" c-name 2@ type ." (Cell *SP, Cell **FP) /* " forth-name 2@ type |
| |
." ( " stack-string 2@ type ." ) */" cr |
| |
." /* " doc 2@ type ." */" cr |
| |
." NAME(" [char] " emit forth-name 2@ type [char] " emit ." )" cr |
| |
\ debugging |
| |
." {" cr |
| |
declarations |
| |
compute-offsets \ for everything else |
| |
inst-stream stack-used? IF ." Cell *ip=IP;" cr THEN |
| |
data-stack stack-used? IF ." Cell *sp=SP;" cr THEN |
| |
fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN |
| |
return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN |
| |
flush-tos |
| |
fetches |
| |
stack-pointer-updates |
| |
fp-stack stack-used? IF ." *FP=fp;" cr THEN |
| |
." {" cr |
| |
." #line " c-line @ . [char] " emit c-filename 2@ type [char] " emit cr |
| c-code 2@ type |
c-code 2@ type |
| ." }" cr |
." }" cr |
| ." NEXT_P1;" cr |
|
| stores |
stores |
| fill-tos |
fill-tos |
| ." NEXT_P2;" cr |
." return (sp);" cr |
| ." }" cr |
." }" cr |
| cr |
cr ; |
| ; |
|
| |
|
| : output-label ( -- ) |
: output-label ( -- ) |
| ." &&I_" c-name 2@ type ." ," cr ; |
." (Label)&&I_" c-name 2@ type ." ," cr |
| |
-1 primitive-number +! ; |
| |
|
| : output-alias ( -- ) |
: output-alias ( -- ) |
| primitive-number @ . ." alias " forth-name 2@ type cr |
( primitive-number @ . ." alias " ) ." Primitive " forth-name 2@ type cr |
| -1 primitive-number +! ; |
-1 primitive-number +! ; |
| |
|
| : output-forth ( -- ) |
: output-forth ( -- ) |
| forth-code @ 0= |
forth-code @ 0= |
| IF output-alias |
IF \ output-alias |
| |
\ this is bad for ec: an alias is compiled if tho word does not exist! |
| |
\ JAW |
| ELSE ." : " forth-name 2@ type ." ( " |
ELSE ." : " forth-name 2@ type ." ( " |
| effect-in effect-in-end @ .stack-list ." -- " |
stack-string 2@ type ." )" cr |
| effect-out effect-out-end @ .stack-list ." )" cr |
|
| forth-code 2@ type cr |
forth-code 2@ type cr |
| -1 primitive-number +! |
-1 primitive-number +! |
| THEN ; |
THEN ; |
| : process-file ( addr u xt -- ) |
: process-file ( addr u xt -- ) |
| >r |
>r |
| 2dup filename 2! |
2dup filename 2! |
| |
0 function-number ! |
| r/o open-file abort" cannot open file" |
r/o open-file abort" cannot open file" |
| warnings @ if |
warnings @ if |
| ." ------------ CUT HERE -------------" cr endif |
." ------------ CUT HERE -------------" cr endif |
| r> primfilter ; |
r> primfilter ; |
| |
|
| |
: process ( xt -- ) |
| |
bl word count rot |
| |
process-file ; |
