version 1.61, 2009/10/18 17:52:50
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version 1.62, 2009/12/27 01:00:52
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Line 67
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Line 67
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\ The files are built in .../lib/gforth/$VERSION/libcc/ or |
\ The files are built in .../lib/gforth/$VERSION/libcc/ or |
\ ~/.gforth/libcc/$HOST/. |
\ ~/.gforth/libcc/$HOST/. |
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\ other things to do: |
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\ c-variable forth-name c-name |
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\ c-constant forth-name c-name |
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\ Todo: conversion between function pointers and xts (both directions) |
\ Todo: conversion between function pointers and xts (both directions) |
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\ taking an xt and turning it into a function pointer: |
\ taking an xt and turning it into a function pointer: |
Line 143 struct
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Line 138 struct
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cell% field cff-deferred \ xt of c-function deferred word |
cell% field cff-deferred \ xt of c-function deferred word |
cell% field cff-lha \ address of the lib-handle for the lib that |
cell% field cff-lha \ address of the lib-handle for the lib that |
\ contains the wrapper function of the word |
\ contains the wrapper function of the word |
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char% field cff-ctype \ call type (function=1, value=0) |
char% field cff-rtype \ return type |
char% field cff-rtype \ return type |
char% field cff-np \ number of parameters |
char% field cff-np \ number of parameters |
1 0 field cff-ptypes \ #npar parameter types |
1 0 field cff-ptypes \ #npar parameter types |
Line 292 drop
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Line 288 drop
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set-current |
set-current |
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: parse-libcc-type ( "libcc-type" -- u ) |
\ call types |
parse-name libcc-types search-wordlist 0= -13 and throw execute ; |
0 |
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const+ c-func |
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const+ c-val |
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const+ c-var |
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drop |
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: libcc-type ( c-addr u -- u2 ) |
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libcc-types search-wordlist 0= -13 and throw execute ; |
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: parse-libcc-type ( "libcc-type" -- u ) parse-name libcc-type ; |
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: parse-function-types ( "{libcc-type}" "--" "libcc-type" -- ) |
: parse-return-type ( "libcc-type" -- u ) |
here 2 chars allot here begin |
parse-libcc-type dup 0< -32 and throw ; |
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: parse-function-types ( "{libcc-type}" "--" "libcc-type" -- addr ) |
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c-func c, here |
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dup 2 chars allot here begin |
parse-libcc-type dup 0>= while |
parse-libcc-type dup 0>= while |
c, |
c, |
repeat |
repeat |
drop here swap - over char+ c! |
drop here swap - over char+ c! |
parse-libcc-type dup 0< -32 and throw swap c! ; |
parse-return-type swap c! ; |
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: parse-value-type ( "{--}" "libcc-type" -- addr ) |
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c-val c, here |
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parse-libcc-type dup 0< if drop parse-return-type then |
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c, 0 c, ; |
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: parse-variable-type ( -- addr ) |
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c-var c, here |
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s" a" libcc-type c, 0 c, ; |
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: type-letter ( n -- c ) |
: type-letter ( n -- c ) |
chars s" nadrfv" drop + c@ ; |
chars s" nadrfv" drop + c@ ; |
Line 373 create gen-par-types
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Line 391 create gen-par-types
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\ the call itself |
\ the call itself |
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: gen-wrapped-call { d: pars d: c-name fp-change1 sp-change1 -- } |
: gen-wrapped-func { d: pars d: c-name fp-change1 sp-change1 -- } |
c-name type ." (" |
c-name type ." (" |
fp-change1 sp-change1 pars over + swap u+do |
fp-change1 sp-change1 pars over + swap u+do |
i c@ gen-par |
i c@ gen-par |
Line 383 create gen-par-types
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Line 401 create gen-par-types
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loop |
loop |
2drop ." )" ; |
2drop ." )" ; |
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: gen-wrapped-const { d: pars d: c-name fp-change1 sp-change1 -- } |
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." (" c-name type ." )" ; |
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: gen-wrapped-var { d: pars d: c-name fp-change1 sp-change1 -- } |
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." &(" c-name type ." )" ; |
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create gen-call-types |
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' gen-wrapped-func , |
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' gen-wrapped-const , |
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' gen-wrapped-var , |
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: gen-wrapped-call ( pars c-name fp-change1 sp-change1 -- ) |
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5 pick 3 chars - c@ cells gen-call-types + @ execute ; |
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\ calls for various kinds of return values |
\ calls for various kinds of return values |
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: gen-wrapped-void ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
: gen-wrapped-void ( pars c-name fp-change1 sp-change1 -- fp-change sp-change ) |
Line 594 DEFER compile-wrapper-function ( -- )
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Line 626 DEFER compile-wrapper-function ( -- )
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endif |
endif |
wrapper-name drop free throw ; |
wrapper-name drop free throw ; |
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: c-function-ft ( xt-defr xt-cfr "c-name" "{libcc-type}" "--" "libcc-type" -- ) |
: c-function-ft ( xt-defr xt-cfr xt-parse "c-name" "type signature" -- ) |
\ build time/first time action for c-function |
\ build time/first time action for c-function |
init-c-source-file |
{ xt-parse-types } init-c-source-file |
noname create 2, lib-handle-addr @ , |
noname create 2, lib-handle-addr @ , |
parse-name { d: c-name } |
parse-name { d: c-name } |
here parse-function-types c-name string, |
xt-parse-types execute c-name string, |
['] gen-wrapper-function c-source-file-execute |
['] gen-wrapper-function c-source-file-execute |
does> ( ... -- ... ) |
does> ( ... -- ... ) |
dup 2@ { xt-defer xt-cfr } |
dup 2@ { xt-defer xt-cfr } |
Line 617 DEFER compile-wrapper-function ( -- )
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Line 649 DEFER compile-wrapper-function ( -- )
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does> ( ... -- ... ) |
does> ( ... -- ... ) |
@ call-c ; |
@ call-c ; |
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: c-function ( "forth-name" "c-name" "@{type@}" "--" "type" -- ) \ gforth |
: (c-function) ( xt-parse "forth-name" "c-name" "{stack effect}" -- ) |
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{ xt-parse-types } defer lastxt dup c-function-rt |
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lastxt xt-parse-types c-function-ft |
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lastxt swap defer! ; |
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: c-function ( "forth-name" "c-name" "@{type@}" "---" "type" -- ) \ gforth |
\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
\G specified stack effect and calls the C function @code{c-name}. |
\G specified stack effect and calls the C function @code{c-name}. |
defer lastxt dup c-function-rt lastxt c-function-ft |
['] parse-function-types (c-function) ; |
lastxt swap defer! ; |
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: c-value ( "forth-name" "c-name" "[---]" "type" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} has the |
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\G specified stack effect and gives the C value of @code{c-name}. |
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['] parse-value-type (c-function) ; |
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: c-variable ( "forth-name" "c-name" -- ) \ gforth |
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\G Define a Forth word @i{forth-name}. @i{Forth-name} returns the |
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\G address of @code{c-name}. |
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['] parse-variable-type (c-function) ; |
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: clear-libs ( -- ) \ gforth |
: clear-libs ( -- ) \ gforth |
\G Clear the list of libs |
\G Clear the list of libs |