version 1.46, 1995/11/07 18:06:47
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version 1.63, 1996/09/10 16:08:39
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Line 74 HEX
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Line 74 HEX
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\ the code address of a @code{field} |
\ the code address of a @code{field} |
['] reveal-method >code-address ; |
['] reveal-method >code-address ; |
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NIL AConstant NIL \ gforth |
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\ Bit string manipulation 06oct92py |
\ Bit string manipulation 06oct92py |
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Create bits 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, |
\ Create bits 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c, |
DOES> ( n -- ) + c@ ; |
\ DOES> ( n -- ) + c@ ; |
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: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; |
\ : >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ; |
: +bit ( addr n -- ) >bit over c@ or swap c! ; |
\ : +bit ( addr n -- ) >bit over c@ or swap c! ; |
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: relinfo ( -- addr ) forthstart dup @ + ; |
\ : relinfo ( -- addr ) forthstart dup @ + !!bug!! ; |
: >rel ( addr -- n ) forthstart - ; |
\ : >rel ( addr -- n ) forthstart - ; |
: relon ( addr -- ) relinfo swap >rel cell / +bit ; |
\ : relon ( addr -- ) relinfo swap >rel cell / +bit ; |
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\ here allot , c, A, 17dec92py |
\ here allot , c, A, 17dec92py |
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Line 128 DOES> ( n -- ) + c@ ;
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Line 130 DOES> ( n -- ) + c@ ;
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; immediate |
; immediate |
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: A! ( addr1 addr2 -- ) \ gforth |
\ : A! ( addr1 addr2 -- ) \ gforth |
dup relon ! ; |
\ dup relon ! ; |
: A, ( addr -- ) \ gforth |
\ : A, ( addr -- ) \ gforth |
here cell allot A! ; |
\ here cell allot A! ; |
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' ! alias A! ( addr1 addr2 -- ) \ gforth |
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' , alias A, ( addr -- ) \ gforth |
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\ on off 23feb93py |
\ on off 23feb93py |
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Line 140 DOES> ( n -- ) + c@ ;
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Line 145 DOES> ( n -- ) + c@ ;
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: off ( addr -- ) \ gforth |
: off ( addr -- ) \ gforth |
false swap ! ; |
false swap ! ; |
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\ dabs roll 17may93jaw |
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: dabs ( d1 -- d2 ) \ double |
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dup 0< IF dnegate THEN ; |
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: roll ( x0 x1 .. xn n -- x1 .. xn x0 ) \ core-ext |
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dup 1+ pick >r |
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cells sp@ cell+ dup cell+ rot move drop r> ; |
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\ name> found 17dec92py |
\ name> found 17dec92py |
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: (name>) ( nfa -- cfa ) |
$80 constant alias-mask \ set when the word is not an alias! |
count $1F and + cfaligned ; |
$40 constant immediate-mask |
: name> ( nfa -- cfa ) \ gforth |
$20 constant restrict-mask |
cell+ |
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dup (name>) swap c@ $80 and 0= IF @ THEN ; |
: ((name>)) ( nfa -- cfa ) |
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name>string + cfaligned ; |
: found ( nfa -- cfa n ) \ gforth |
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cell+ |
: (name>x) ( nfa -- cfa b ) |
dup c@ >r (name>) r@ $80 and 0= IF @ THEN |
\ cfa is an intermediate cfa and b is the flags byte of nfa |
-1 r@ $40 and IF 1- THEN |
dup ((name>)) |
r> $20 and IF negate THEN ; |
swap cell+ c@ dup alias-mask and 0= |
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IF |
\ (find) 17dec92py |
swap @ swap |
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THEN ; |
\ : (find) ( addr count nfa1 -- nfa2 / false ) |
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\ BEGIN dup WHILE dup >r |
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\ cell+ count $1F and dup >r 2over r> = |
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\ IF -text 0= IF 2drop r> EXIT THEN |
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\ ELSE 2drop drop THEN r> @ |
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\ REPEAT nip nip ; |
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\ place bounds 13feb93py |
\ place bounds 13feb93py |
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Line 170 DOES> ( n -- ) + c@ ;
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Line 178 DOES> ( n -- ) + c@ ;
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: bounds ( beg count -- end beg ) \ gforth |
: bounds ( beg count -- end beg ) \ gforth |
over + swap ; |
over + swap ; |
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: save-mem ( addr1 u -- addr2 u ) \ gforth |
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\ copy a memory block into a newly allocated region in the heap |
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swap >r |
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dup allocate throw |
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swap 2dup r> -rot move ; |
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: extend-mem ( addr1 u1 u -- addr addr2 u2 ) |
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\ extend memory block allocated from the heap by u aus |
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\ the (possibly reallocated piece is addr2 u2, the extension is at addr |
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over >r + dup >r resize throw |
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r> over r> + -rot ; |
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\ input stream primitives 23feb93py |
\ input stream primitives 23feb93py |
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: tib ( -- c-addr ) \ core-ext |
: tib ( -- c-addr ) \ core-ext |
Line 244 Defer source ( -- addr count ) \ core
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Line 264 Defer source ( -- addr count ) \ core
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\ Literal 17dec92py |
\ Literal 17dec92py |
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: Literal ( compilation n -- ; run-time -- n ) \ core |
: Literal ( compilation n -- ; run-time -- n ) \ core |
state @ IF postpone lit , THEN ; immediate |
postpone lit , ; immediate restrict |
: ALiteral ( compilation addr -- ; run-time -- addr ) \ gforth |
: ALiteral ( compilation addr -- ; run-time -- addr ) \ gforth |
state @ IF postpone lit A, THEN ; |
postpone lit A, ; immediate restrict |
immediate |
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: char ( 'char' -- n ) \ core |
: char ( 'char' -- n ) \ core |
bl word char+ c@ ; |
bl word char+ c@ ; |
: [char] ( compilation 'char' -- ; run-time -- n ) |
: [char] ( compilation 'char' -- ; run-time -- n ) |
char postpone Literal ; immediate |
char postpone Literal ; immediate restrict |
' [char] Alias Ascii immediate |
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: (compile) ( -- ) \ gforth |
: (compile) ( -- ) \ gforth |
r> dup cell+ >r @ compile, ; |
r> dup cell+ >r @ compile, ; |
: postpone ( "name" -- ) \ core |
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name sfind dup 0= abort" Can't compile " |
\ not the most efficient implementation of POSTPONE, but simple |
0> IF compile, ELSE postpone (compile) A, THEN ; |
: POSTPONE ( -- ) \ core |
immediate restrict |
COMP' swap POSTPONE aliteral compile, ; immediate restrict |
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: interpret/compile: ( interp-xt comp-xt "name" -- ) |
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Create immediate swap A, A, |
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DOES> |
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abort" executed primary cfa of an interpret/compile: word" ; |
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\ state @ IF cell+ THEN perform ; |
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\ Use (compile) for the old behavior of compile! |
\ Use (compile) for the old behavior of compile! |
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Line 450 hex
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Line 474 hex
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: throw ( y1 .. ym error/0 -- y1 .. ym / z1 .. zn error ) \ exception |
: throw ( y1 .. ym error/0 -- y1 .. ym / z1 .. zn error ) \ exception |
?DUP IF |
?DUP IF |
[ here 4 cells ! ] |
[ here 9 cells ! ] |
handler @ rp! |
handler @ rp! |
r> handler ! |
r> handler ! |
r> lp! |
r> lp! |
Line 483 Defer parser
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Line 507 Defer parser
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Defer name ( -- c-addr count ) \ gforth |
Defer name ( -- c-addr count ) \ gforth |
\ get the next word from the input buffer |
\ get the next word from the input buffer |
' (name) IS name |
' (name) IS name |
Defer notfound ( c-addr count -- ) |
Defer compiler-notfound ( c-addr count -- ) |
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Defer interpreter-notfound ( c-addr count -- ) |
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: no.extensions ( addr u -- ) |
: no.extensions ( addr u -- ) |
2drop -&13 bounce ; |
2drop -&13 bounce ; |
' no.extensions IS notfound |
' no.extensions IS compiler-notfound |
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' no.extensions IS interpreter-notfound |
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: compile-only-error ( ... -- ) |
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-&14 throw ; |
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: interpret ( ?? -- ?? ) \ gforth |
: interpret ( ?? -- ?? ) \ gforth |
\ interpret/compile the (rest of the) input buffer |
\ interpret/compile the (rest of the) input buffer |
Line 500 Defer notfound ( c-addr count -- )
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Line 529 Defer notfound ( c-addr count -- )
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\ interpreter compiler 30apr92py |
\ interpreter compiler 30apr92py |
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: interpreter ( c-addr u -- ) \ gforth |
\ not the most efficient implementations of interpreter and compiler |
\ interpretation semantics for the name/number c-addr u |
: interpreter ( c-addr u -- ) |
2dup sfind dup |
2dup find-name dup |
IF |
if |
1 and |
nip nip name>int execute |
IF \ not restricted to compile state? |
else |
nip nip execute EXIT |
drop |
THEN |
2dup 2>r snumber? |
-&14 throw |
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THEN |
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drop |
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2dup 2>r snumber? |
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IF |
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2rdrop |
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ELSE |
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2r> notfound |
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THEN ; |
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' interpreter IS parser |
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: compiler ( c-addr u -- ) \ gforth |
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\ compilation semantics for the name/number c-addr u |
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2dup sfind dup |
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IF |
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0> |
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IF |
IF |
nip nip execute EXIT |
2rdrop |
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ELSE |
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2r> interpreter-notfound |
THEN |
THEN |
compile, 2drop EXIT |
then ; |
THEN |
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drop |
: compiler ( c-addr u -- ) |
2dup snumber? dup |
2dup find-name dup |
IF |
if ( c-addr u nfa ) |
0> |
nip nip name>comp execute |
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else |
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drop |
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2dup snumber? dup |
IF |
IF |
swap postpone Literal |
0> |
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IF |
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swap postpone Literal |
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THEN |
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postpone Literal |
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2drop |
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ELSE |
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drop compiler-notfound |
THEN |
THEN |
postpone Literal |
then ; |
2drop |
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ELSE |
' interpreter IS parser |
drop notfound |
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THEN ; |
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: [ ( -- ) \ core left-bracket |
: [ ( -- ) \ core left-bracket |
['] interpreter IS parser state off ; immediate |
['] interpreter IS parser state off ; immediate |
Line 581 variable backedge-locals
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Line 603 variable backedge-locals
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0 backedge-locals ! ; immediate |
0 backedge-locals ! ; immediate |
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: ASSUME-LIVE ( orig -- orig ) \ gforth |
: ASSUME-LIVE ( orig -- orig ) \ gforth |
\ used immediateliy before a BEGIN that is not reachable from |
\ used immediatly before a BEGIN that is not reachable from |
\ above. causes the BEGIN to assume that the same locals are live |
\ above. causes the BEGIN to assume that the same locals are live |
\ as at the orig point |
\ as at the orig point |
dup orig? |
dup orig? |
Line 619 variable backedge-locals
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Line 641 variable backedge-locals
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over 0<> |
over 0<> |
while |
while |
over |
over |
name> >body @ max |
((name>)) >body @ max |
swap @ swap ( get next ) |
swap @ swap ( get next ) |
repeat |
repeat |
faligned nip ; |
faligned nip ; |
Line 720 variable backedge-locals
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Line 742 variable backedge-locals
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: ?DUP-IF ( compilation -- orig ; run-time n -- n| ) \ gforth question-dupe-if |
: ?DUP-IF ( compilation -- orig ; run-time n -- n| ) \ gforth question-dupe-if |
\ This is the preferred alternative to the idiom "?DUP IF", since it can be |
\ This is the preferred alternative to the idiom "?DUP IF", since it can be |
\ better handled by tools like stack checkers |
\ better handled by tools like stack checkers. Besides, it's faster. |
POSTPONE ?dup POSTPONE if ; immediate restrict |
POSTPONE ?dup-?branch >mark ; immediate restrict |
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: ?DUP-0=-IF ( compilation -- orig ; run-time n -- n| ) \ gforth question-dupe-zero-equals-if |
: ?DUP-0=-IF ( compilation -- orig ; run-time n -- n| ) \ gforth question-dupe-zero-equals-if |
POSTPONE ?dup POSTPONE 0= POSTPONE if ; immediate restrict |
POSTPONE ?dup-0=-?branch >mark ; immediate restrict |
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: THEN ( compilation orig -- ; run-time -- ) \ core |
: then-like ( orig -- addr ) |
dup orig? |
swap -rot dead-orig = |
dead-orig = |
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if |
if |
>resolve drop |
drop |
else |
else |
dead-code @ |
dead-code @ |
if |
if |
>resolve set-locals-size-list dead-code off |
set-locals-size-list dead-code off |
else \ both live |
else \ both live |
over list-size adjust-locals-size |
dup list-size adjust-locals-size |
>resolve |
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locals-list @ common-list dup list-size adjust-locals-size |
locals-list @ common-list dup list-size adjust-locals-size |
locals-list ! |
locals-list ! |
then |
then |
then ; immediate restrict |
then ; |
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: THEN ( compilation orig -- ; run-time -- ) \ core |
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dup orig? then-like >resolve ; immediate restrict |
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' THEN alias ENDIF ( compilation orig -- ; run-time -- ) \ gforth |
' THEN alias ENDIF ( compilation orig -- ; run-time -- ) \ gforth |
immediate restrict |
immediate restrict |
Line 769 immediate restrict
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Line 793 immediate restrict
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\ issue a warning (see below). The following code is generated: |
\ issue a warning (see below). The following code is generated: |
\ lp+!# (current-local-size - dest-locals-size) |
\ lp+!# (current-local-size - dest-locals-size) |
\ branch <begin> |
\ branch <begin> |
: AGAIN ( compilation dest -- ; run-time -- ) \ core-ext |
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dest? |
: again-like ( dest -- addr ) |
over list-size adjust-locals-size |
over list-size adjust-locals-size |
POSTPONE branch |
swap check-begin POSTPONE unreachable ; |
<resolve |
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check-begin |
: AGAIN ( compilation dest -- ; run-time -- ) \ core-ext |
POSTPONE unreachable ; immediate restrict |
dest? again-like POSTPONE branch <resolve ; immediate restrict |
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\ UNTIL (the current control flow may join an earlier one or continue): |
\ UNTIL (the current control flow may join an earlier one or continue): |
\ Similar to AGAIN. The new locals-list and locals-size are the current |
\ Similar to AGAIN. The new locals-list and locals-size are the current |
Line 878 Avariable leave-sp leave-stack 3 cells
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Line 902 Avariable leave-sp leave-stack 3 cells
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: ?DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ core-ext question-do |
: ?DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ core-ext question-do |
POSTPONE (?do) ?do-like ; immediate restrict |
POSTPONE (?do) ?do-like ; immediate restrict |
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: +DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ gforth plus-do |
: +DO ( compilation -- do-sys ; run-time n1 n2 -- | loop-sys ) \ gforth plus-do |
POSTPONE (+do) ?do-like ; immediate restrict |
POSTPONE (+do) ?do-like ; immediate restrict |
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: U+DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ gforth u-plus-do |
: U+DO ( compilation -- do-sys ; run-time u1 u2 -- | loop-sys ) \ gforth u-plus-do |
POSTPONE (u+do) ?do-like ; immediate restrict |
POSTPONE (u+do) ?do-like ; immediate restrict |
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: -DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ gforth minus-do |
: -DO ( compilation -- do-sys ; run-time n1 n2 -- | loop-sys ) \ gforth minus-do |
POSTPONE (-do) ?do-like ; immediate restrict |
POSTPONE (-do) ?do-like ; immediate restrict |
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: U-DO ( compilation -- do-sys ; run-time w1 w2 -- | loop-sys ) \ gforth u-minus-do |
: U-DO ( compilation -- do-sys ; run-time u1 u2 -- | loop-sys ) \ gforth u-minus-do |
POSTPONE (u-do) ?do-like ; immediate restrict |
POSTPONE (u-do) ?do-like ; immediate restrict |
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: FOR ( compilation -- do-sys ; run-time w -- loop-sys ) \ gforth |
: FOR ( compilation -- do-sys ; run-time u -- loop-sys ) \ gforth |
POSTPONE (for) |
POSTPONE (for) |
POSTPONE begin drop do-dest |
POSTPONE begin drop do-dest |
( 0 0 0 >leave ) ; immediate restrict |
( 0 0 0 >leave ) ; immediate restrict |
Line 936 Avariable leave-sp leave-stack 3 cells
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Line 960 Avariable leave-sp leave-stack 3 cells
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: ," ( "string"<"> -- ) [char] " parse |
: ," ( "string"<"> -- ) [char] " parse |
here over char+ allot place align ; |
here over char+ allot place align ; |
: "lit ( -- addr ) |
: "lit ( -- addr ) |
r> r> dup count + aligned >r swap >r ; restrict |
r> r> dup count + aligned >r swap >r ; |
: (.") "lit count type ; restrict |
: (.") "lit count type ; |
: (S") "lit count ; restrict |
: (S") "lit count ; |
: SLiteral ( Compilation c-addr1 u ; run-time -- c-addr2 u ) \ string |
: SLiteral ( Compilation c-addr1 u ; run-time -- c-addr2 u ) \ string |
postpone (S") here over char+ allot place align ; |
postpone (S") here over char+ allot place align ; |
immediate restrict |
immediate restrict |
create s"-buffer /line chars allot |
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: S" ( compilation 'ccc"' -- ; run-time -- c-addr u ) \ core,file s-quote |
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[char] " parse |
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state @ |
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IF |
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postpone SLiteral |
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ELSE |
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/line min >r s"-buffer r@ cmove |
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s"-buffer r> |
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THEN ; immediate |
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: ." ( compilation 'ccc"' -- ; run-time -- ) \ core dot-quote |
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state @ IF postpone (.") ," align |
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ELSE [char] " parse type THEN ; immediate |
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: ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file paren |
: ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file paren |
[char] ) parse 2drop ; immediate |
BEGIN |
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>in @ [char] ) parse nip >in @ rot - = |
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WHILE |
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loadfile @ IF |
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refill 0= abort" missing ')' in paren comment" |
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THEN |
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REPEAT ; immediate |
: \ ( -- ) \ core-ext backslash |
: \ ( -- ) \ core-ext backslash |
blk @ |
blk @ |
IF |
IF |
Line 983 create s"-buffer /line chars allot
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Line 999 create s"-buffer /line chars allot
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\ Header states 23feb93py |
\ Header states 23feb93py |
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: flag! ( 8b -- ) |
: cset ( bmask c-addr -- ) |
last @ dup 0= abort" last word was headerless" |
tuck c@ or swap c! ; |
cell+ tuck c@ xor swap c! ; |
: creset ( bmask c-addr -- ) |
: immediate $20 flag! ; |
tuck c@ swap invert and swap c! ; |
: restrict $40 flag! ; |
: ctoggle ( bmask c-addr -- ) |
\ ' noop alias restrict |
tuck c@ xor swap c! ; |
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: lastflags ( -- c-addr ) |
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\ the address of the flags byte in the last header |
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\ aborts if the last defined word was headerless |
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last @ dup 0= abort" last word was headerless" cell+ ; |
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: immediate immediate-mask lastflags cset ; |
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: restrict restrict-mask lastflags cset ; |
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\ Header 23feb93py |
\ Header 23feb93py |
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Line 1004 defer header ( -- ) \ gforth
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Line 1028 defer header ( -- ) \ gforth
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\ puts down string as cstring |
\ puts down string as cstring |
dup c, here swap chars dup allot move ; |
dup c, here swap chars dup allot move ; |
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: name, ( "name" -- ) \ gforth |
: header, ( c-addr u -- ) \ gforth |
name name-too-short? name-too-long? |
name-too-long? |
string, cfalign ; |
align here last ! |
: input-stream-header ( "name" -- ) |
current @ 1 or A, \ link field; before revealing, it contains the |
\ !! this is f83-implementation-dependent |
\ tagged reveal-into wordlist |
align here last ! -1 A, |
string, cfalign |
name, $80 flag! ; |
alias-mask lastflags cset ; |
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: input-stream-header ( "name" -- ) |
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name name-too-short? header, ; |
: input-stream ( -- ) \ general |
: input-stream ( -- ) \ general |
\ switches back to getting the name from the input stream ; |
\ switches back to getting the name from the input stream ; |
['] input-stream-header IS (header) ; |
['] input-stream-header IS (header) ; |
Line 1022 defer header ( -- ) \ gforth
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Line 1048 defer header ( -- ) \ gforth
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create nextname-buffer 32 chars allot |
create nextname-buffer 32 chars allot |
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: nextname-header ( -- ) |
: nextname-header ( -- ) |
\ !! f83-implementation-dependent |
nextname-buffer count header, |
nextname-buffer count |
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align here last ! -1 A, |
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string, cfalign |
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$80 flag! |
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input-stream ; |
input-stream ; |
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\ the next name is given in the string |
\ the next name is given in the string |
Line 1049 create nextname-buffer 32 chars allot
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Line 1071 create nextname-buffer 32 chars allot
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lastcfa @ ; |
lastcfa @ ; |
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: Alias ( cfa "name" -- ) \ gforth |
: Alias ( cfa "name" -- ) \ gforth |
Header reveal , $80 flag! ; |
Header reveal |
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alias-mask lastflags creset |
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dup A, lastcfa ! ; |
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: name>string ( nfa -- addr count ) \ gforth name-to-string |
: name>string ( nfa -- addr count ) \ gforth name-to-string |
cell+ count $1F and ; |
cell+ count $1F and ; |
Line 1057 create nextname-buffer 32 chars allot
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Line 1081 create nextname-buffer 32 chars allot
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Create ??? 0 , 3 c, char ? c, char ? c, char ? c, |
Create ??? 0 , 3 c, char ? c, char ? c, char ? c, |
: >name ( cfa -- nfa ) \ gforth to-name |
: >name ( cfa -- nfa ) \ gforth to-name |
$21 cell do |
$21 cell do |
dup i - count $9F and + cfaligned over $80 + = if |
dup i - count $9F and + cfaligned over alias-mask + = if |
i - cell - unloop exit |
i - cell - unloop exit |
then |
then |
cell +loop |
cell +loop |
Line 1078 Create ??? 0 , 3 c, char ? c, char ? c,
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Line 1102 Create ??? 0 , 3 c, char ? c, char ? c,
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: dodoes, ( -- ) |
: dodoes, ( -- ) |
here /does-handler allot does-handler! ; |
here /does-handler allot does-handler! ; |
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: Create ( -- ) \ core |
: Create ( "name" -- ) \ core |
Header reveal dovar: cfa, ; |
Header reveal dovar: cfa, ; |
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\ DOES> 17mar93py |
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: DOES> ( compilation colon-sys1 -- colon-sys2 ; run-time nest-sys -- ) \ core does |
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state @ |
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IF |
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;-hook postpone (does>) ?struc dodoes, |
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ELSE |
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align dodoes, here !does ] |
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THEN |
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defstart :-hook ; immediate |
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\ Create Variable User Constant 17mar93py |
\ Create Variable User Constant 17mar93py |
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: Variable ( -- ) \ core |
: Variable ( "name" -- ) \ core |
Create 0 , ; |
Create 0 , ; |
: AVariable ( -- ) \ gforth |
: AVariable ( "name" -- ) \ gforth |
Create 0 A, ; |
Create 0 A, ; |
: 2VARIABLE ( "name" -- ) \ double |
: 2VARIABLE ( "name" -- ) \ double |
create 0 , 0 , ; |
create 0 , 0 , ; |
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: User |
: User ( "name" -- ) \ gforth |
Variable ; |
Variable ; |
: AUser |
: AUser ( "name" -- ) \ gforth |
AVariable ; |
AVariable ; |
|
|
: (Constant) Header reveal docon: cfa, ; |
: (Constant) Header reveal docon: cfa, ; |
: Constant ( w -- ) \ core |
: Constant ( w "name" -- ) \ core |
(Constant) , ; |
(Constant) , ; |
: AConstant ( addr -- ) \ gforth |
: AConstant ( addr "name" -- ) \ gforth |
(Constant) A, ; |
(Constant) A, ; |
|
|
: 2Constant ( d -- ) \ double |
: 2Constant ( w1 w2 "name" -- ) \ double |
Create ( w1 w2 "name" -- ) |
Create ( w1 w2 "name" -- ) |
2, |
2, |
DOES> ( -- w1 w2 ) |
DOES> ( -- w1 w2 ) |
Line 1120 Create ??? 0 , 3 c, char ? c, char ? c,
|
Line 1133 Create ??? 0 , 3 c, char ? c, char ? c,
|
|
|
\ IS Defer What's Defers TO 24feb93py |
\ IS Defer What's Defers TO 24feb93py |
|
|
: Defer ( -- ) \ gforth |
: Defer ( "name" -- ) \ gforth |
\ !! shouldn't it be initialized with abort or something similar? |
\ !! shouldn't it be initialized with abort or something similar? |
Header Reveal dodefer: cfa, |
Header Reveal dodefer: cfa, |
['] noop A, ; |
['] noop A, ; |
\ Create ( -- ) |
\ Create ( -- ) |
\ ['] noop A, |
\ ['] noop A, |
\ DOES> ( ??? ) |
\ DOES> ( ??? ) |
\ @ execute ; |
\ perform ; |
|
|
: IS ( addr "name" -- ) \ gforth |
|
' >body |
|
state @ |
|
IF postpone ALiteral postpone ! |
|
ELSE ! |
|
THEN ; immediate |
|
' IS Alias TO ( addr "name" -- ) \ core-ext |
|
immediate |
|
|
|
: What's ( "name" -- addr ) \ gforth |
|
' >body |
|
state @ |
|
IF |
|
postpone ALiteral postpone @ |
|
ELSE |
|
@ |
|
THEN ; immediate |
|
: Defers ( "name" -- ) \ gforth |
: Defers ( "name" -- ) \ gforth |
' >body @ compile, ; immediate |
' >body @ compile, ; immediate |
|
|
Line 1154 immediate
|
Line 1150 immediate
|
defer :-hook ( sys1 -- sys2 ) |
defer :-hook ( sys1 -- sys2 ) |
defer ;-hook ( sys2 -- sys1 ) |
defer ;-hook ( sys2 -- sys1 ) |
|
|
: : ( -- colon-sys ) \ core colon |
: : ( "name" -- colon-sys ) \ core colon |
Header docol: cfa, defstart ] :-hook ; |
Header docol: cfa, defstart ] :-hook ; |
: ; ( compilation colon-sys -- ; run-time nest-sys ) \ core semicolon |
: ; ( compilation colon-sys -- ; run-time nest-sys ) \ core semicolon |
;-hook ?struc postpone exit reveal postpone [ ; immediate restrict |
;-hook ?struc postpone exit reveal postpone [ ; immediate restrict |
Line 1169 AVariable current ( -- addr ) \ gforth
|
Line 1165 AVariable current ( -- addr ) \ gforth
|
|
|
: last? ( -- false / nfa nfa ) |
: last? ( -- false / nfa nfa ) |
last @ ?dup ; |
last @ ?dup ; |
: (reveal) ( -- ) |
: (reveal) ( nfa wid -- ) |
last? |
( wid>wordlist-id ) dup >r |
IF |
@ over ( name>link ) ! |
dup @ 0< |
r> ! ; |
IF |
|
current @ @ over ! current @ ! |
|
ELSE |
|
drop |
|
THEN |
|
THEN ; |
|
|
|
\ object oriented search list 17mar93py |
\ object oriented search list 17mar93py |
|
|
Line 1186 AVariable current ( -- addr ) \ gforth
|
Line 1176 AVariable current ( -- addr ) \ gforth
|
|
|
struct |
struct |
1 cells: field find-method \ xt: ( c_addr u wid -- name-id ) |
1 cells: field find-method \ xt: ( c_addr u wid -- name-id ) |
1 cells: field reveal-method \ xt: ( -- ) \ used by dofield:, must be field |
1 cells: field reveal-method \ xt: ( nfa wid -- ) \ used by dofield:, must be field |
1 cells: field rehash-method \ xt: ( wid -- ) |
1 cells: field rehash-method \ xt: ( wid -- ) |
\ \ !! what else |
\ \ !! what else |
end-struct wordlist-map-struct |
end-struct wordlist-map-struct |
Line 1198 struct
|
Line 1188 struct
|
1 cells: field wordlist-extend \ points to wordlist extensions (eg hash) |
1 cells: field wordlist-extend \ points to wordlist extensions (eg hash) |
end-struct wordlist-struct |
end-struct wordlist-struct |
|
|
: f83find ( addr len wordlist -- nfa / false ) @ (f83find) ; |
: f83find ( addr len wordlist -- nfa / false ) |
|
( wid>wordlist-id ) @ (f83find) ; |
|
|
\ Search list table: find reveal |
\ Search list table: find reveal |
Create f83search ' f83find A, ' (reveal) A, ' drop A, |
Create f83search ( -- wordlist-map ) |
|
' f83find A, ' (reveal) A, ' drop A, |
|
|
Create forth-wordlist NIL A, G f83search T A, NIL A, NIL A, |
Create forth-wordlist NIL A, G f83search T A, NIL A, NIL A, |
AVariable lookup G forth-wordlist lookup T ! |
AVariable lookup G forth-wordlist lookup T ! |
G forth-wordlist current T ! |
G forth-wordlist current T ! |
|
|
|
\ higher level parts of find |
|
|
|
( struct ) |
|
0 >body cell |
|
1 cells: field interpret/compile-int |
|
1 cells: field interpret/compile-comp |
|
end-struct interpret/compile-struct |
|
|
|
: interpret/compile? ( xt -- flag ) |
|
>does-code ['] S" >does-code = ; |
|
|
|
: (cfa>int) ( cfa -- xt ) |
|
dup interpret/compile? |
|
if |
|
interpret/compile-int @ |
|
then ; |
|
|
|
: (x>int) ( cfa b -- xt ) |
|
\ get interpretation semantics of name |
|
restrict-mask and |
|
if |
|
drop ['] compile-only-error |
|
else |
|
(cfa>int) |
|
then ; |
|
|
|
: name>int ( nfa -- xt ) \ gforth |
|
(name>x) (x>int) ; |
|
|
|
: name?int ( nfa -- xt ) \ gforth |
|
\ like name>int, but throws an error if compile-only |
|
(name>x) restrict-mask and |
|
if |
|
compile-only-error \ does not return |
|
then |
|
(cfa>int) ; |
|
|
|
: name>comp ( nfa -- w xt ) \ gforth |
|
\ get compilation semantics of name |
|
(name>x) >r dup interpret/compile? |
|
if |
|
interpret/compile-comp @ |
|
then |
|
r> immediate-mask and if |
|
['] execute |
|
else |
|
['] compile, |
|
then ; |
|
|
: (search-wordlist) ( addr count wid -- nfa / false ) |
: (search-wordlist) ( addr count wid -- nfa / false ) |
dup wordlist-map @ find-method @ execute ; |
dup wordlist-map @ find-method perform ; |
|
|
|
: flag-sign ( f -- 1|-1 ) |
|
\ true becomes 1, false -1 |
|
0= 2* 1+ ; |
|
|
|
: (name>intn) ( nfa -- xt +-1 ) |
|
(name>x) tuck (x>int) ( b xt ) |
|
swap immediate-mask and flag-sign ; |
|
|
|
: search-wordlist ( addr count wid -- 0 / xt +-1 ) \ search |
|
\ xt is the interpretation semantics |
|
(search-wordlist) dup if |
|
(name>intn) |
|
then ; |
|
|
|
: find-name ( c-addr u -- nfa/0 ) |
|
lookup @ (search-wordlist) ; |
|
|
: search-wordlist ( addr count wid -- 0 / xt +-1 ) \ search |
: sfind ( c-addr u -- 0 / xt +-1 ) \ gforth-obsolete |
(search-wordlist) dup IF found THEN ; |
find-name dup |
|
if ( nfa ) |
|
state @ |
|
if |
|
name>comp ['] execute = flag-sign |
|
else |
|
(name>intn) |
|
then |
|
then ; |
|
|
|
: find ( c-addr -- xt +-1 / c-addr 0 ) \ core |
|
dup count sfind dup |
|
if |
|
rot drop |
|
then ; |
|
|
|
: (') ( "name" -- nfa ) \ gforth |
|
name find-name dup 0= |
|
IF |
|
drop -&13 bounce |
|
THEN ; |
|
|
|
: [(')] ( compilation "name" -- ; run-time -- nfa ) \ gforth bracket-paren-tick |
|
(') postpone ALiteral ; immediate restrict |
|
|
|
: ' ( "name" -- xt ) \ core tick |
|
(') name?int ; |
|
: ['] ( compilation "name" -- ; run-time -- xt ) \ core bracket-tick |
|
' postpone ALiteral ; immediate restrict |
|
|
|
: COMP' ( "name" -- w xt ) \ gforth c-tick |
|
(') name>comp ; |
|
: [COMP'] ( compilation "name" -- ; run-time -- w xt ) \ gforth bracket-comp-tick |
|
COMP' swap POSTPONE Aliteral POSTPONE ALiteral ; immediate restrict |
|
|
|
\ reveal words |
|
|
Variable warnings ( -- addr ) \ gforth |
Variable warnings ( -- addr ) \ gforth |
G -1 warnings T ! |
G -1 warnings T ! |
|
|
: check-shadow ( addr count wid -- ) |
: check-shadow ( addr count wid -- ) |
\ prints a warning if the string is already present in the wordlist |
\ prints a warning if the string is already present in the wordlist |
\ !! should be refined so the user can suppress the warnings |
|
>r 2dup 2dup r> (search-wordlist) warnings @ and ?dup if |
>r 2dup 2dup r> (search-wordlist) warnings @ and ?dup if |
." redefined " name>string 2dup type |
." redefined " name>string 2dup type |
compare 0<> if |
compare 0<> if |
Line 1230 G -1 warnings T !
|
Line 1322 G -1 warnings T !
|
then |
then |
2drop 2drop ; |
2drop 2drop ; |
|
|
: sfind ( c-addr u -- xt n / 0 ) \ gforth |
|
lookup @ search-wordlist ; |
|
|
|
: find ( addr -- cfa +-1 / string false ) \ core,search |
|
\ !! not ANS conformant: returns +-2 for restricted words |
|
dup count sfind dup if |
|
rot drop |
|
then ; |
|
|
|
: reveal ( -- ) \ gforth |
: reveal ( -- ) \ gforth |
last? if |
last? |
name>string current @ check-shadow |
if \ the last word has a header |
then |
dup ( name>link ) @ 1 and |
current @ wordlist-map @ reveal-method @ execute ; |
if \ it is still hidden |
|
dup ( name>link ) @ 1 xor ( nfa wid ) |
|
2dup >r name>string r> check-shadow ( nfa wid ) |
|
dup wordlist-map @ reveal-method perform |
|
then |
|
then ; |
|
|
: rehash ( wid -- ) |
: rehash ( wid -- ) |
dup wordlist-map @ rehash-method @ execute ; |
dup wordlist-map @ rehash-method perform ; |
|
|
: ' ( "name" -- addr ) \ core tick |
|
name sfind 0= if -&13 bounce then ; |
|
: ['] ( compilation "name" -- ; run-time --addr ) \ core bracket-tick |
|
' postpone ALiteral ; immediate |
|
\ Input 13feb93py |
\ Input 13feb93py |
|
|
07 constant #bell ( -- c ) \ gforth |
07 constant #bell ( -- c ) \ gforth |
Line 1264 G -1 warnings T !
|
Line 1348 G -1 warnings T !
|
0A constant #lf ( -- c ) \ gforth |
0A constant #lf ( -- c ) \ gforth |
|
|
: bell #bell emit ; |
: bell #bell emit ; |
|
: cr ( -- ) \ core |
|
\ emit a newline |
|
#lf ( sic! ) emit ; |
|
|
\ : backspaces 0 ?DO #bs emit LOOP ; |
\ : backspaces 0 ?DO #bs emit LOOP ; |
: >string ( span addr pos1 -- span addr pos1 addr2 len ) |
|
over 3 pick 2 pick chars /string ; |
: (ins) ( max span addr pos1 key -- max span addr pos2 ) |
: type-rest ( span addr pos1 -- span addr pos1 back ) |
>r 2dup + r@ swap c! r> emit 1+ rot 1+ -rot ; |
>string tuck type ; |
: (bs) ( max span addr pos1 -- max span addr pos2 flag ) |
: (del) ( max span addr pos1 -- max span addr pos2 ) |
dup IF |
1- >string over 1+ -rot move |
#bs emit bl emit #bs emit 1- rot 1- -rot |
rot 1- -rot #bs emit type-rest bl emit 1+ backspaces ; |
THEN false ; |
: (ins) ( max span addr pos1 char -- max span addr pos2 ) |
: (ret) true space ; |
>r >string over 1+ swap move 2dup chars + r> swap c! |
|
rot 1+ -rot type-rest 1- backspaces 1+ ; |
|
: ?del ( max span addr pos1 -- max span addr pos2 0 ) |
|
dup IF (del) THEN 0 ; |
|
: (ret) type-rest drop true space ; |
|
: back dup IF 1- #bs emit ELSE #bell emit THEN 0 ; |
|
: forw 2 pick over <> IF 2dup + c@ emit 1+ ELSE #bell emit THEN 0 ; |
|
: eof 2 pick 0= IF bye ELSE (ret) THEN ; |
|
|
|
Create ctrlkeys |
Create ctrlkeys |
] false false back false eof false forw false |
] false false false false false false false false |
?del false (ret) false false (ret) false false |
(bs) false (ret) false false (ret) false false |
false false false false false false false false |
false false false false false false false false |
false false false false false false false false [ |
false false false false false false false false [ |
|
|
|
defer insert-char |
|
' (ins) IS insert-char |
defer everychar |
defer everychar |
' noop IS everychar |
' noop IS everychar |
|
|
: decode ( max span addr pos1 key -- max span addr pos2 flag ) |
: decode ( max span addr pos1 key -- max span addr pos2 flag ) |
everychar |
everychar |
dup #del = IF drop #bs THEN \ del is rubout |
dup #del = IF drop #bs THEN \ del is rubout |
dup bl < IF cells ctrlkeys + @ execute EXIT THEN |
dup bl < IF cells ctrlkeys + perform EXIT THEN |
>r 2over = IF rdrop bell 0 EXIT THEN |
>r 2over = IF rdrop bell 0 EXIT THEN |
r> (ins) 0 ; |
r> insert-char 0 ; |
|
|
\ decode should better use a table for control key actions |
|
\ to define keyboard bindings later |
|
|
|
: accept ( addr len -- len ) \ core |
: accept ( addr len -- len ) \ core |
dup 0< IF abs over dup 1 chars - c@ tuck type |
dup 0< IF abs over dup 1 chars - c@ tuck type |
Line 1311 defer everychar
|
Line 1389 defer everychar
|
|
|
\ Output 13feb93py |
\ Output 13feb93py |
|
|
|
: (type) ( c-addr u -- ) \ gforth |
|
outfile-id write-file drop \ !! use ?DUP-IF THROW ENDIF instead of DROP ? |
|
; |
|
|
Defer type ( c-addr u -- ) \ core |
Defer type ( c-addr u -- ) \ core |
\ defer type for a output buffer or fast |
\ defer type for a output buffer or fast |
\ screen write |
\ screen write |
|
|
\ : (type) ( addr len -- ) |
|
\ bounds ?DO I c@ emit LOOP ; |
|
|
|
' (type) IS Type |
' (type) IS Type |
|
|
|
: (emit) ( c -- ) \ gforth |
|
outfile-id emit-file drop \ !! use ?DUP-IF THROW ENDIF instead of DROP ? |
|
; |
|
|
Defer emit ( c -- ) \ core |
Defer emit ( c -- ) \ core |
' (Emit) IS Emit |
' (Emit) IS Emit |
|
|
Defer key ( -- c ) \ core |
Defer key ( -- c ) \ core |
' (key) IS key |
' (key) IS key |
|
|
\ : form ( -- rows cols ) &24 &80 ; |
|
\ form should be implemented using TERMCAPS or CURSES |
|
\ : rows form drop ; |
|
\ : cols form nip ; |
|
|
|
\ Query 07apr93py |
\ Query 07apr93py |
|
|
: refill ( -- flag ) \ core-ext,block-ext,file-ext |
: refill ( -- flag ) \ core-ext,block-ext,file-ext |
Line 1338 Defer key ( -- c ) \ core
|
Line 1416 Defer key ( -- c ) \ core
|
tib /line |
tib /line |
loadfile @ ?dup |
loadfile @ ?dup |
IF read-line throw |
IF read-line throw |
ELSE loadline @ 0< IF 2drop false EXIT THEN |
ELSE sourceline# 0< IF 2drop false EXIT THEN |
accept true |
accept true |
THEN |
THEN |
1 loadline +! |
1 loadline +! |
Line 1355 Defer key ( -- c ) \ core
|
Line 1433 Defer key ( -- c ) \ core
|
\ 2 c, here char r c, char + c, 0 c, |
\ 2 c, here char r c, char + c, 0 c, |
\ 2 c, here char w c, char + c, 0 c, align |
\ 2 c, here char w c, char + c, 0 c, align |
4 Constant w/o ( -- fam ) \ file w-o |
4 Constant w/o ( -- fam ) \ file w-o |
2 Constant r/w ( -- fam ) \ file r-o |
2 Constant r/w ( -- fam ) \ file r-w |
0 Constant r/o ( -- fam ) \ file r-w |
0 Constant r/o ( -- fam ) \ file r-o |
|
|
\ BIN WRITE-LINE 11jun93jaw |
\ BIN WRITE-LINE 11jun93jaw |
|
|
Line 1380 create nl$ 1 c, A c, 0 c, \ gnu includes
|
Line 1458 create nl$ 1 c, A c, 0 c, \ gnu includes
|
\ include-file 07apr93py |
\ include-file 07apr93py |
|
|
: push-file ( -- ) r> |
: push-file ( -- ) r> |
loadline @ >r loadfile @ >r |
sourceline# >r loadfile @ >r |
blk @ >r >tib @ >r #tib @ dup >r >tib +! >in @ >r >r ; |
blk @ >r tibstack @ >r >tib @ >r #tib @ >r |
|
>tib @ tibstack @ = IF r@ tibstack +! THEN |
|
tibstack @ >tib ! >in @ >r >r ; |
|
|
: pop-file ( throw-code -- throw-code ) |
: pop-file ( throw-code -- throw-code ) |
dup IF |
dup IF |
source >in @ loadline @ loadfilename 2@ |
source >in @ sourceline# sourcefilename |
error-stack dup @ dup 1+ |
error-stack dup @ dup 1+ |
max-errors 1- min error-stack ! |
max-errors 1- min error-stack ! |
6 * cells + cell+ |
6 * cells + cell+ |
Line 1394 create nl$ 1 c, A c, 0 c, \ gnu includes
|
Line 1474 create nl$ 1 c, A c, 0 c, \ gnu includes
|
-1 cells +LOOP |
-1 cells +LOOP |
THEN |
THEN |
r> |
r> |
r> >in ! r> #tib ! r> >tib ! r> blk ! |
r> >in ! r> #tib ! r> >tib ! r> tibstack ! r> blk ! |
r> loadfile ! r> loadline ! >r ; |
r> loadfile ! r> loadline ! >r ; |
|
|
: read-loop ( i*x -- j*x ) |
: read-loop ( i*x -- j*x ) |
Line 1421 create pathfilenamebuf 256 chars allot \
|
Line 1501 create pathfilenamebuf 256 chars allot \
|
\ ELSE false |
\ ELSE false |
\ THEN ; |
\ THEN ; |
|
|
|
: absolut-path? ( addr u -- flag ) \ gforth |
|
\ a path is absolute, if it starts with a / or a ~ (~ expansion), |
|
\ or if it is in the form ./* or ../*, extended regexp: [/~]|./|../ |
|
\ Pathes simply containing a / are not absolute! |
|
over c@ '/ = >r |
|
over c@ '~ = >r |
|
2dup 2 min S" ./" compare 0= >r |
|
3 min S" ../" compare 0= |
|
r> r> r> or or or ; |
|
\ [char] / scan nip 0<> ; |
|
|
: open-path-file ( c-addr1 u1 -- file-id c-addr2 u2 ) \ gforth |
: open-path-file ( c-addr1 u1 -- file-id c-addr2 u2 ) \ gforth |
\ opens a file for reading, searching in the path for it (unless |
\ opens a file for reading, searching in the path for it (unless |
\ the filename contains a slash); c-addr2 u2 is the full filename |
\ the filename contains a slash); c-addr2 u2 is the full filename |
Line 1430 create pathfilenamebuf 256 chars allot \
|
Line 1521 create pathfilenamebuf 256 chars allot \
|
\ the path will usually contain dirs that are only readable for |
\ the path will usually contain dirs that are only readable for |
\ the user |
\ the user |
\ !! use file-status to determine access mode? |
\ !! use file-status to determine access mode? |
2dup [char] / scan nip ( 0<> ) |
2dup absolut-path? |
if \ the filename contains a slash |
if \ the filename contains a slash |
2dup r/o open-file throw ( c-addr1 u1 file-id ) |
2dup r/o open-file throw ( c-addr1 u1 file-id ) |
-rot >r pathfilenamebuf r@ cmove ( file-id R: u1 ) |
-rot >r pathfilenamebuf r@ cmove ( file-id R: u1 ) |
Line 1453 create pathfilenamebuf 256 chars allot \
|
Line 1544 create pathfilenamebuf 256 chars allot \
|
pathfilenamebuf swap ; |
pathfilenamebuf swap ; |
|
|
create included-files 0 , 0 , ( pointer to and count of included files ) |
create included-files 0 , 0 , ( pointer to and count of included files ) |
create image-included-files 0 , 0 , ( pointer to and count of included files ) |
here ," the terminal" dup c@ swap 1 + swap , A, here 2 cells - |
|
create image-included-files 1 , A, ( pointer to and count of included files ) |
\ included-files points to ALLOCATEd space, while image-included-files |
\ included-files points to ALLOCATEd space, while image-included-files |
\ points to ALLOTed objects, so it survives a save-system |
\ points to ALLOTed objects, so it survives a save-system |
|
|
Line 1461 create image-included-files 0 , 0 , ( po
|
Line 1553 create image-included-files 0 , 0 , ( po
|
\ a-addr 2@ produces the current file name ( c-addr u ) |
\ a-addr 2@ produces the current file name ( c-addr u ) |
included-files 2@ drop loadfilename# @ 2* cells + ; |
included-files 2@ drop loadfilename# @ 2* cells + ; |
|
|
|
: sourcefilename ( -- c-addr u ) \ gforth |
|
\ the name of the source file which is currently the input |
|
\ source. The result is valid only while the file is being |
|
\ loaded. If the current input source is no (stream) file, the |
|
\ result is undefined. |
|
loadfilename 2@ ; |
|
|
|
: sourceline# ( -- u ) \ gforth sourceline-number |
|
\ the line number of the line that is currently being interpreted |
|
\ from a (stream) file. The first line has the number 1. If the |
|
\ current input source is no (stream) file, the result is |
|
\ undefined. |
|
loadline @ ; |
|
|
: init-included-files ( -- ) |
: init-included-files ( -- ) |
image-included-files 2@ 2* cells save-string drop ( addr ) |
image-included-files 2@ 2* cells save-mem drop ( addr ) |
image-included-files 2@ nip included-files 2! ; |
image-included-files 2@ nip included-files 2! ; |
|
|
: included? ( c-addr u -- f ) \ gforth |
: included? ( c-addr u -- f ) \ gforth |
Line 1480 create image-included-files 0 , 0 , ( po
|
Line 1586 create image-included-files 0 , 0 , ( po
|
|
|
: add-included-file ( c-addr u -- ) \ gforth |
: add-included-file ( c-addr u -- ) \ gforth |
\ add name c-addr u to included-files |
\ add name c-addr u to included-files |
included-files 2@ tuck 1+ 2* cells resize throw |
included-files 2@ 2* cells 2 cells extend-mem |
swap 2dup 1+ included-files 2! |
2/ cell / included-files 2! |
2* cells + 2! ; |
2! ; |
|
\ included-files 2@ tuck 1+ 2* cells resize throw |
: save-string ( addr1 u -- addr2 u ) \ gforth |
\ swap 2dup 1+ included-files 2! |
\ !! not a string, but a memblock word |
\ 2* cells + 2! ; |
swap >r |
|
dup allocate throw |
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swap 2dup r> -rot move ; |
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: included1 ( i*x file-id c-addr u -- j*x ) \ gforth |
: included1 ( i*x file-id c-addr u -- j*x ) \ gforth |
\ include the file file-id with the name given by c-addr u |
\ include the file file-id with the name given by c-addr u |
loadfilename# @ >r |
loadfilename# @ >r |
save-string add-included-file ( file-id ) |
save-mem add-included-file ( file-id ) |
included-files 2@ nip 1- loadfilename# ! |
included-files 2@ nip 1- loadfilename# ! |
['] include-file catch |
['] include-file catch |
r> loadfilename# ! |
r> loadfilename# ! |
Line 1544 create image-included-files 0 , 0 , ( po
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Line 1647 create image-included-files 0 , 0 , ( po
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: recurse ( compilation -- ; run-time ?? -- ?? ) \ core |
: recurse ( compilation -- ; run-time ?? -- ?? ) \ core |
lastxt compile, ; immediate restrict |
lastxt compile, ; immediate restrict |
: recursive ( -- ) \ gforth |
' reveal alias recursive ( -- ) \ gforth |
reveal last off ; immediate |
immediate |
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\ */MOD */ 17may93jaw |
\ */MOD */ 17may93jaw |
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Line 1559 create image-included-files 0 , 0 , ( po
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Line 1662 create image-included-files 0 , 0 , ( po
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\ EVALUATE 17may93jaw |
\ EVALUATE 17may93jaw |
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: evaluate ( c-addr len -- ) \ core,block |
: evaluate ( c-addr len -- ) \ core,block |
push-file dup #tib ! >tib @ swap move |
push-file #tib ! >tib ! |
>in off blk off loadfile off -1 loadline ! |
>in off blk off loadfile off -1 loadline ! |
\ BEGIN interpret >in @ #tib @ u>= UNTIL |
|
['] interpret catch |
['] interpret catch |
pop-file throw ; |
pop-file throw ; |
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Line 1594 max-errors 6 * cells allot
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Line 1696 max-errors 6 * cells allot
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\ print value in decimal representation |
\ print value in decimal representation |
base @ decimal swap . base ! ; |
base @ decimal swap . base ! ; |
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: hex. ( u -- ) \ gforth |
|
\ print value as unsigned hex number |
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'$ emit base @ swap hex u. base ! ; |
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: typewhite ( addr u -- ) \ gforth |
: typewhite ( addr u -- ) \ gforth |
\ like type, but white space is printed instead of the characters |
\ like type, but white space is printed instead of the characters |
bounds ?do |
bounds ?do |
Line 1628 DEFER DOERROR
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Line 1734 DEFER DOERROR
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; |
; |
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: (DoError) ( throw-code -- ) |
: (DoError) ( throw-code -- ) |
loadline @ IF |
sourceline# IF |
source >in @ loadline @ 0 0 .error-frame |
source >in @ sourceline# 0 0 .error-frame |
THEN |
THEN |
error-stack @ 0 ?DO |
error-stack @ 0 ?DO |
-1 error-stack +! |
-1 error-stack +! |
Line 1659 DEFER DOERROR
|
Line 1765 DEFER DOERROR
|
postpone [ |
postpone [ |
['] 'quit CATCH dup |
['] 'quit CATCH dup |
WHILE |
WHILE |
DoError r@ >tib ! |
DoError r@ >tib ! r@ tibstack ! |
REPEAT |
REPEAT |
drop r> >tib ! ; |
drop r> >tib ! ; |
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|
\ Cold 13feb93py |
\ Cold 13feb93py |
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\ : .name ( name -- ) cell+ count $1F and type space ; |
\ : .name ( name -- ) name>string type space ; |
\ : words listwords @ |
\ : words listwords @ |
\ BEGIN @ dup WHILE dup .name REPEAT drop ; |
\ BEGIN @ dup WHILE dup .name REPEAT drop ; |
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Line 1732 Variable argc
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Line 1838 Variable argc
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Defer 'cold ' noop IS 'cold |
Defer 'cold ' noop IS 'cold |
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|
: cold ( -- ) \ gforth |
: cold ( -- ) \ gforth |
|
stdout TO outfile-id |
pathstring 2@ process-path pathdirs 2! |
pathstring 2@ process-path pathdirs 2! |
init-included-files |
init-included-files |
'cold |
'cold |
Line 1745 Defer 'cold ' noop IS 'cold
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Line 1852 Defer 'cold ' noop IS 'cold
|
cr |
cr |
THEN |
THEN |
false to script? |
false to script? |
." GForth " version-string type ." , Copyright (C) 1994 Free Software Foundation, Inc." cr |
." GForth " version-string type ." , Copyright (C) 1994-1996 Free Software Foundation, Inc." cr |
." GForth comes with ABSOLUTELY NO WARRANTY; for details type `license'" cr |
." GForth comes with ABSOLUTELY NO WARRANTY; for details type `license'" cr |
." Type `bye' to exit" |
." Type `bye' to exit" |
loadline off quit ; |
loadline off quit ; |
Line 1768 Defer 'cold ' noop IS 'cold
|
Line 1875 Defer 'cold ' noop IS 'cold
|
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: boot ( path **argv argc -- ) |
: boot ( path **argv argc -- ) |
argc ! argv ! cstring>sstring pathstring 2! main-task up! |
argc ! argv ! cstring>sstring pathstring 2! main-task up! |
sp@ dup s0 ! $10 + >tib ! #tib off >in off |
sp@ dup s0 ! $10 + dup >tib ! tibstack ! #tib off >in off |
rp@ r0 ! fp@ f0 ! cold ; |
rp@ r0 ! fp@ f0 ! ['] cold catch DoError bye ; |
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: bye ( -- ) \ tools-ext |
: bye ( -- ) \ tools-ext |
script? 0= IF cr THEN 0 (bye) ; |
script? 0= IF cr THEN 0 (bye) ; |
Line 1779 Defer 'cold ' noop IS 'cold
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Line 1886 Defer 'cold ' noop IS 'cold
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\ or space and stackspace overrides |
\ or space and stackspace overrides |
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\ 0 arg contains, however, the name of the program. |
\ 0 arg contains, however, the name of the program. |
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