version 1.51, 2000/11/12 18:14:09
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version 1.57, 2000/12/26 19:31:56
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Line 87 variable output \ xt ( -- ) of output wo
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Line 87 variable output \ xt ( -- ) of output wo
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: printprim ( -- ) |
: printprim ( -- ) |
output @ execute ; |
output @ execute ; |
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\ stack types |
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struct% |
struct% |
cell% 2* field stack-pointer \ stackpointer name |
cell% 2* field stack-pointer \ stackpointer name |
cell% 2* field stack-cast \ cast string for assignments to stack elements |
cell% 2* field stack-cast \ cast string for assignments to stack elements |
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cell% field stack-in-index-xt \ ( in-size item -- in-index ) |
cell% field stack-in \ number of stack items in effect in |
cell% field stack-in \ number of stack items in effect in |
cell% field stack-out \ number of stack items in effect out |
cell% field stack-out \ number of stack items in effect out |
end-struct stack% |
end-struct stack% |
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struct% |
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cell% 2* field item-name \ name, excluding stack prefixes |
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cell% field item-stack \ descriptor for the stack used, 0 is default |
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cell% field item-type \ descriptor for the item type |
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cell% field item-offset \ offset in stack items, 0 for the deepest element |
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end-struct item% |
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struct% |
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cell% 2* field type-c-name |
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cell% field type-stack \ default stack |
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cell% field type-size \ size of type in stack items |
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cell% field type-fetch \ xt of fetch code generator ( item -- ) |
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cell% field type-store \ xt of store code generator ( item -- ) |
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end-struct type% |
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: stack-in-index ( in-size item -- in-index ) |
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item-offset @ - 1- ; |
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: inst-in-index ( in-size item -- in-index ) |
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nip dup item-offset @ swap item-type @ type-size @ + 1- ; |
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: make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- ) |
: make-stack ( addr-ptr u1 addr-cast u2 "stack-name" -- ) |
create stack% %allot >r |
create stack% %allot >r |
save-mem r@ stack-cast 2! |
save-mem r@ stack-cast 2! |
save-mem r> stack-pointer 2! ; |
save-mem r@ stack-pointer 2! |
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['] stack-in-index r> stack-in-index-xt ! ; |
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s" sp" save-mem s" (Cell)" make-stack data-stack |
s" sp" save-mem s" (Cell)" make-stack data-stack |
s" fp" save-mem s" " make-stack fp-stack |
s" fp" save-mem s" " make-stack fp-stack |
s" rp" save-mem s" (Cell)" make-stack return-stack |
s" rp" save-mem s" (Cell)" make-stack return-stack |
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s" ip" save-mem s" error don't use # on results" make-stack inst-stream |
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' inst-in-index inst-stream stack-in-index-xt ! |
\ !! initialize stack-in and stack-out |
\ !! initialize stack-in and stack-out |
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\ stack items |
\ stack items |
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struct% |
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cell% 2* field item-name \ name, excluding stack prefixes |
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cell% field item-stack \ descriptor for the stack used, 0 is default |
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cell% field item-type \ descriptor for the item type |
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cell% field item-offset \ offset in stack items, 0 for the deepest element |
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end-struct item% |
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: init-item ( addr u addr1 -- ) |
: init-item ( addr u addr1 -- ) |
\ initialize item at addr1 with name addr u |
\ initialize item at addr1 with name addr u |
\ !! remove stack prefix |
\ !! remove stack prefix |
Line 257 eof-char singleton charclass eof
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Line 273 eof-char singleton charclass eof
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Variable forth-flag |
Variable forth-flag |
Variable c-flag |
Variable c-flag |
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(( (( ` e || ` E )) {{ start }} nonl ** |
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{{ end evaluate }} |
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)) <- eval-comment ( ... -- ... ) |
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(( (( ` f || ` F )) {{ start }} nonl ** |
(( (( ` f || ` F )) {{ start }} nonl ** |
{{ end forth-flag @ IF type cr ELSE 2drop THEN }} |
{{ end forth-flag @ IF type cr ELSE 2drop THEN }} |
)) <- forth-comment ( -- ) |
)) <- forth-comment ( -- ) |
Line 283 Variable c-flag
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Line 303 Variable c-flag
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THEN }} |
THEN }} |
)) <- if-comment |
)) <- if-comment |
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(( (( forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body |
(( (( eval-comment || forth-comment || c-comment || else-comment || if-comment )) ?? nonl ** )) <- comment-body |
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(( ` \ comment-body nl )) <- comment ( -- ) |
(( ` \ comment-body nl )) <- comment ( -- ) |
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Line 295 Variable c-flag
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Line 315 Variable c-flag
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{{ effect-out }} stack-items {{ effect-out-end ! }} |
{{ effect-out }} stack-items {{ effect-out-end ! }} |
)) <- stack-effect ( -- ) |
)) <- stack-effect ( -- ) |
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(( {{ s" " doc 2! s" " forth-code 2! }} |
(( {{ s" " doc 2! s" " forth-code 2! s" " wordset 2! }} |
(( {{ line @ name-line ! filename 2@ name-filename 2! }} |
(( {{ line @ name-line ! filename 2@ name-filename 2! }} |
{{ start }} forth-ident {{ end 2dup forth-name 2! c-name 2! }} white ++ |
{{ start }} forth-ident {{ end 2dup forth-name 2! c-name 2! }} white ++ |
` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white ** |
` ( white ** {{ start }} stack-effect {{ end stack-string 2! }} ` ) white ** |
{{ start }} forth-ident {{ end wordset 2! }} white ** |
(( {{ start }} forth-ident {{ end wordset 2! }} white ** |
(( {{ start }} c-ident {{ end c-name 2! }} )) ?? nl |
(( {{ start }} c-ident {{ end c-name 2! }} )) ?? |
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)) ?? nl |
)) |
)) |
(( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " nl )) ?? |
(( ` " ` " {{ start }} (( noquote ++ ` " )) ++ {{ end 1- doc 2! }} ` " 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 )) ** {{ end c-code 2! skipsynclines on }} |
Line 332 warnings @ [IF]
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Line 353 warnings @ [IF]
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\ types |
\ types |
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struct% |
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cell% 2* field type-c-name |
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cell% field type-stack \ default stack |
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cell% field type-size \ size of type in stack items |
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cell% field type-fetch \ xt of fetch code generator ( item -- ) |
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cell% field type-store \ xt of store code generator ( item -- ) |
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end-struct type% |
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: stack-access ( n stack -- ) |
: stack-access ( n stack -- ) |
\ print a stack access at index n of stack |
\ print a stack access at index n of stack |
stack-pointer 2@ type |
stack-pointer 2@ type |
Line 350 end-struct type%
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Line 363 end-struct type%
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drop ." TOS" |
drop ." TOS" |
endif ; |
endif ; |
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: item-in-index ( item -- n ) |
: item-in-index { item -- n } |
\ n is the index of item (in the in-effect) |
\ n is the index of item (in the in-effect) |
>r r@ item-stack @ stack-in @ r> item-offset @ - 1- ; |
item item-stack @ dup >r stack-in @ ( in-size r:stack ) |
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item r> stack-in-index-xt @ execute ; |
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: fetch-single ( item -- ) |
: fetch-single ( item -- ) |
\ fetch a single stack item from its stack |
\ fetch a single stack item from its stack |
Line 423 end-struct type%
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Line 437 end-struct type%
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." );" cr |
." );" cr |
rdrop ; |
rdrop ; |
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: single ( -- xt1 xt2 n ) |
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['] fetch-single ['] store-single 1 ; |
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: single-type ( -- xt1 xt2 n stack ) |
: double ( -- xt1 xt2 n ) |
['] fetch-single ['] store-single 1 data-stack ; |
['] fetch-double ['] store-double 2 ; |
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: double-type ( -- xt1 xt2 n stack ) |
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['] fetch-double ['] store-double 2 data-stack ; |
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: float-type ( -- xt1 xt2 n stack ) |
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['] fetch-single ['] store-single 1 fp-stack ; |
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: s, ( addr u -- ) |
: s, ( addr u -- ) |
\ allocate a string |
\ allocate a string |
Line 462 wordlist constant prefixes
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Line 472 wordlist constant prefixes
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stack r@ type-stack ! |
stack r@ type-stack ! |
rdrop ; |
rdrop ; |
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: type-prefix ( addr u xt1 xt2 n stack "prefix" -- ) |
: type-prefix ( xt1 xt2 n stack "prefix" -- ) |
create-type |
create-type |
does> ( item -- ) |
does> ( item -- ) |
\ initialize item |
\ initialize item |
Line 510 does> ( item -- )
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Line 520 does> ( item -- )
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effect-in effect-in-end @ declaration-list |
effect-in effect-in-end @ declaration-list |
effect-out effect-out-end @ declaration-list ; |
effect-out effect-out-end @ declaration-list ; |
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get-current |
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prefixes set-current |
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s" Bool" single-type type-prefix f |
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s" Char" single-type type-prefix c |
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s" Cell" single-type type-prefix n |
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s" Cell" single-type type-prefix w |
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s" UCell" single-type type-prefix u |
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s" DCell" double-type type-prefix d |
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s" UDCell" double-type type-prefix ud |
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s" Float" float-type type-prefix r |
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s" Cell *" single-type type-prefix a_ |
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s" Char *" single-type type-prefix c_ |
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s" Float *" single-type type-prefix f_ |
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s" DFloat *" single-type type-prefix df_ |
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s" SFloat *" single-type type-prefix sf_ |
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s" Xt" single-type type-prefix xt |
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s" WID" single-type type-prefix wid |
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s" struct F83Name *" single-type type-prefix f83name |
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return-stack stack-prefix R: |
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set-current |
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\ offset computation |
\ offset computation |
\ 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 |
Line 553 set-current
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Line 539 set-current
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: clear-stack { -- } |
: clear-stack { -- } |
dup stack-in off stack-out off ; |
dup stack-in off stack-out off ; |
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: compute-offsets ( -- ) |
: compute-offsets ( -- ) |
data-stack clear-stack fp-stack clear-stack return-stack clear-stack |
data-stack clear-stack fp-stack clear-stack return-stack clear-stack |
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inst-stream clear-stack |
effect-in effect-in-end @ ['] stack-in compute-list |
effect-in effect-in-end @ ['] stack-in compute-list |
effect-out effect-out-end @ ['] stack-out compute-list ; |
effect-out effect-out-end @ ['] stack-out compute-list |
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inst-stream stack-out @ 0<> abort" # can only be on the input side" ; |
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: flush-a-tos { stack -- } |
: flush-a-tos { stack -- } |
stack stack-out @ 0<> stack stack-in @ 0= and |
stack stack-out @ 0<> stack stack-in @ 0= and |
Line 579 set-current
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Line 566 set-current
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endif ; |
endif ; |
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: fill-tos ( -- ) |
: fill-tos ( -- ) |
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\ !! inst-stream for prefetching? |
fp-stack fill-a-tos |
fp-stack fill-a-tos |
data-stack fill-a-tos |
data-stack fill-a-tos |
return-stack fill-a-tos ; |
return-stack fill-a-tos ; |
Line 598 set-current
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Line 586 set-current
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stack stack-pointer 2@ type ." += " 0 .r ." ;" cr |
stack stack-pointer 2@ type ." += " 0 .r ." ;" cr |
endif ; |
endif ; |
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: inst-pointer-update ( -- ) |
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inst-stream stack-in @ ?dup-if |
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." INC_IP(" 0 .r ." );" cr |
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endif ; |
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: stack-pointer-updates ( -- ) |
: stack-pointer-updates ( -- ) |
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inst-pointer-update |
data-stack stack-pointer-update |
data-stack stack-pointer-update |
fp-stack stack-pointer-update |
fp-stack stack-pointer-update |
return-stack stack-pointer-update ; |
return-stack stack-pointer-update ; |
Line 613 set-current
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Line 607 set-current
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i store |
i store |
item% %size +loop ; |
item% %size +loop ; |
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: output-c-tail ( -- ) |
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\ the final part of the generated C code |
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." NEXT_P1;" cr |
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stores |
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fill-tos |
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." NEXT_P2;" cr ; |
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: type-c ( c-addr u -- ) |
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\ like TYPE, but replaces "TAIL;" with tail code |
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begin ( c-addr1 u1 ) |
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2dup s" TAIL;" search |
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while ( c-addr1 u1 c-addr3 u3 ) |
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2dup 2>r drop nip over - type |
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output-c-tail |
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2r> 5 /string |
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\ !! resync #line missing |
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repeat |
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2drop type ; |
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: 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 |
." /* " doc 2@ type ." */" cr |
." /* " doc 2@ type ." */" cr |
Line 627 set-current
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Line 640 set-current
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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-code 2@ type-c |
." }" cr |
." }" cr |
." NEXT_P1;" cr |
output-c-tail |
stores |
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fill-tos |
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." NEXT_P2;" cr |
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." }" cr |
." }" cr |
cr |
cr |
; |
; |
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: print-type-prefix ( type -- ) |
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body> >head .name ; |
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: disasm-arg { item -- } |
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item item-stack @ inst-stream = if |
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." printarg_" item item-type @ print-type-prefix |
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." (ip[" item item-offset @ 1+ 0 .r ." ]);" cr |
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endif ; |
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: disasm-args ( -- ) |
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effect-in-end @ effect-in ?do |
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i disasm-arg |
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item% %size +loop ; |
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: output-disasm ( -- ) |
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\ generate code for disassembling VM instructions |
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." if (ip[0] == prim[" function-number @ 0 .r ." ]) {" cr |
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." fputs(" [char] " emit forth-name 2@ type [char] " emit ." ,stdout);" cr |
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." /* " declarations ." */" cr |
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compute-offsets |
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disasm-args |
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." ip += " inst-stream stack-in @ 1+ 0 .r ." ;" cr |
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." } else " |
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1 function-number +! ; |
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: stack-used? { stack -- f } |
: stack-used? { stack -- f } |
stack stack-in @ stack stack-out @ or 0<> ; |
stack stack-in @ stack stack-out @ or 0<> ; |
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Line 659 set-current
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Line 694 set-current
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." {" cr |
." {" cr |
declarations |
declarations |
compute-offsets \ for everything else |
compute-offsets \ for everything else |
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inst-stream stack-used? IF ." Cell *ip=IP;" cr THEN |
data-stack stack-used? IF ." Cell *sp=SP;" cr THEN |
data-stack stack-used? IF ." Cell *sp=SP;" cr THEN |
fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN |
fp-stack stack-used? IF ." Cell *fp=*FP;" cr THEN |
return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN |
return-stack stack-used? IF ." Cell *rp=*RP;" cr THEN |