version 1.124, 2003/01/25 13:44:54
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version 1.128, 2003/05/08 08:49:24
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Line 1
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Line 1
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\ Gforth primitives |
\ Gforth primitives |
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\ Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 106
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Line 106
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\E set-current |
\E set-current |
\E store-optimization on |
\E store-optimization on |
\E ' noop tail-nextp2 ! \ now INST_TAIL just stores, but does not jump |
\E ' noop tail-nextp2 ! \ now INST_TAIL just stores, but does not jump |
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\E |
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\E include-skipped-insts on \ static superinsts include cells for components |
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\E \ useful for dynamic programming and |
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\E \ superinsts across entry points |
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\ |
\ |
\ |
\ |
Line 557 cmove ( c_from c_to u -- ) string c_move
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Line 561 cmove ( c_from c_to u -- ) string c_move
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@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char} |
@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char} |
from low address to high address; i.e., for overlapping areas it is |
from low address to high address; i.e., for overlapping areas it is |
safe if @i{c-to}=<@i{c-from}."" |
safe if @i{c-to}=<@i{c-from}."" |
while (u-- > 0) |
cmove(c_from,c_to,u); |
*c_to++ = *c_from++; |
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: |
: |
bounds ?DO dup c@ I c! 1+ LOOP drop ; |
bounds ?DO dup c@ I c! 1+ LOOP drop ; |
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Line 567 cmove> ( c_from c_to u -- ) string c_mov
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Line 570 cmove> ( c_from c_to u -- ) string c_mov
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@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char} |
@i{c-from} to @i{c-to}. The copy proceeds @code{char}-by-@code{char} |
from high address to low address; i.e., for overlapping areas it is |
from high address to low address; i.e., for overlapping areas it is |
safe if @i{c-to}>=@i{c-from}."" |
safe if @i{c-to}>=@i{c-from}."" |
while (u-- > 0) |
cmove_up(c_from,c_to,u); |
c_to[u] = c_from[u]; |
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: |
: |
dup 0= IF drop 2drop exit THEN |
dup 0= IF drop 2drop exit THEN |
rot over + -rot bounds swap 1- |
rot over + -rot bounds swap 1- |
Line 588 is 1. Currently this is based on the mac
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Line 590 is 1. Currently this is based on the mac
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comparison. In the future, this may change to consider the current |
comparison. In the future, this may change to consider the current |
locale and its collation order."" |
locale and its collation order."" |
/* close ' to keep fontify happy */ |
/* close ' to keep fontify happy */ |
n = memcmp(c_addr1, c_addr2, u1<u2 ? u1 : u2); |
n = compare(c_addr1, u1, c_addr2, u2); |
if (n==0) |
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n = u1-u2; |
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if (n<0) |
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n = -1; |
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else if (n>0) |
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n = 1; |
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: |
: |
rot 2dup swap - >r min swap -text dup |
rot 2dup swap - >r min swap -text dup |
IF rdrop ELSE drop r> sgn THEN ; |
IF rdrop ELSE drop r> sgn THEN ; |
: sgn ( n -- -1/0/1 ) |
: sgn ( n -- -1/0/1 ) |
dup 0= IF EXIT THEN 0< 2* 1+ ; |
dup 0= IF EXIT THEN 0< 2* 1+ ; |
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-text ( c_addr1 u c_addr2 -- n ) new dash_text |
\ -text is only used by replaced primitives now; move it elsewhere |
n = memcmp(c_addr1, c_addr2, u); |
\ -text ( c_addr1 u c_addr2 -- n ) new dash_text |
if (n<0) |
\ n = memcmp(c_addr1, c_addr2, u); |
n = -1; |
\ if (n<0) |
else if (n>0) |
\ n = -1; |
n = 1; |
\ else if (n>0) |
: |
\ n = 1; |
swap bounds |
\ : |
?DO dup c@ I c@ = WHILE 1+ LOOP drop 0 |
\ swap bounds |
ELSE c@ I c@ - unloop THEN sgn ; |
\ ?DO dup c@ I c@ = WHILE 1+ LOOP drop 0 |
: sgn ( n -- -1/0/1 ) |
\ ELSE c@ I c@ - unloop THEN sgn ; |
dup 0= IF EXIT THEN 0< 2* 1+ ; |
\ : sgn ( n -- -1/0/1 ) |
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\ dup 0= IF EXIT THEN 0< 2* 1+ ; |
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toupper ( c1 -- c2 ) gforth |
toupper ( c1 -- c2 ) gforth |
""If @i{c1} is a lower-case character (in the current locale), @i{c2} |
""If @i{c1} is a lower-case character (in the current locale), @i{c2} |
Line 621 c2 = toupper(c1);
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Line 618 c2 = toupper(c1);
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: |
dup [char] a - [ char z char a - 1 + ] Literal u< bl and - ; |
dup [char] a - [ char z char a - 1 + ] Literal u< bl and - ; |
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capscomp ( c_addr1 u c_addr2 -- n ) new |
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n = memcasecmp(c_addr1, c_addr2, u); /* !! use something that works in all locales */ |
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if (n<0) |
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n = -1; |
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else if (n>0) |
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n = 1; |
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: |
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swap bounds |
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?DO dup c@ I c@ <> |
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IF dup c@ toupper I c@ toupper = |
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ELSE true THEN WHILE 1+ LOOP drop 0 |
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ELSE c@ toupper I c@ toupper - unloop THEN sgn ; |
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-trailing ( c_addr u1 -- c_addr u2 ) string dash_trailing |
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""Adjust the string specified by @i{c-addr, u1} to remove all trailing |
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spaces. @i{u2} is the length of the modified string."" |
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u2 = u1; |
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while (u2>0 && c_addr[u2-1] == ' ') |
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u2--; |
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: |
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BEGIN 1- 2dup + c@ bl = WHILE |
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dup 0= UNTIL ELSE 1+ THEN ; |
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/string ( c_addr1 u1 n -- c_addr2 u2 ) string slash_string |
/string ( c_addr1 u1 n -- c_addr2 u2 ) string slash_string |
""Adjust the string specified by @i{c-addr1, u1} to remove @i{n} |
""Adjust the string specified by @i{c-addr1, u1} to remove @i{n} |
characters from the start of the string."" |
characters from the start of the string."" |
Line 1343 c_addr2 = c_addr1+1;
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Line 1317 c_addr2 = c_addr1+1;
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\g compiler |
\g compiler |
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(listlfind) ( c_addr u longname1 -- longname2 ) new paren_listlfind |
(listlfind) ( c_addr u longname1 -- longname2 ) new paren_listlfind |
for (; longname1 != NULL; longname1 = (struct Longname *)(longname1->next)) |
longname2=listlfind(c_addr, u, longname1); |
if ((UCell)LONGNAME_COUNT(longname1)==u && |
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memcasecmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
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break; |
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longname2=longname1; |
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: |
: |
BEGIN dup WHILE (findl-samelen) dup WHILE |
BEGIN dup WHILE (findl-samelen) dup WHILE |
>r 2dup r@ cell+ cell+ capscomp 0= |
>r 2dup r@ cell+ cell+ capscomp 0= |
Line 1360 longname2=longname1;
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Line 1330 longname2=longname1;
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\+hash |
\+hash |
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(hashlfind) ( c_addr u a_addr -- longname2 ) new paren_hashlfind |
(hashlfind) ( c_addr u a_addr -- longname2 ) new paren_hashlfind |
struct Longname *longname1; |
longname2 = hashlfind(c_addr, u, a_addr); |
longname2=NULL; |
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while(a_addr != NULL) |
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{ |
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longname1=(struct Longname *)(a_addr[1]); |
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a_addr=(Cell *)(a_addr[0]); |
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if ((UCell)LONGNAME_COUNT(longname1)==u && |
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memcasecmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
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{ |
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longname2=longname1; |
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break; |
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} |
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} |
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: |
BEGIN dup WHILE |
BEGIN dup WHILE |
2@ >r >r dup r@ cell+ @ lcount-mask and = |
2@ >r >r dup r@ cell+ @ lcount-mask and = |
Line 1383 while(a_addr != NULL)
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Line 1341 while(a_addr != NULL)
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(tablelfind) ( c_addr u a_addr -- longname2 ) new paren_tablelfind |
(tablelfind) ( c_addr u a_addr -- longname2 ) new paren_tablelfind |
""A case-sensitive variant of @code{(hashfind)}"" |
""A case-sensitive variant of @code{(hashfind)}"" |
struct Longname *longname1; |
longname2 = tablelfind(c_addr, u, a_addr); |
longname2=NULL; |
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while(a_addr != NULL) |
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{ |
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longname1=(struct Longname *)(a_addr[1]); |
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a_addr=(Cell *)(a_addr[0]); |
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if ((UCell)LONGNAME_COUNT(longname1)==u && |
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memcmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
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{ |
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longname2=longname1; |
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break; |
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} |
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} |
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: |
BEGIN dup WHILE |
BEGIN dup WHILE |
2@ >r >r dup r@ cell+ @ lcount-mask and = |
2@ >r >r dup r@ cell+ @ lcount-mask and = |
Line 1406 while(a_addr != NULL)
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Line 1352 while(a_addr != NULL)
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(hashkey1) ( c_addr u ubits -- ukey ) gforth paren_hashkey1 |
(hashkey1) ( c_addr u ubits -- ukey ) gforth paren_hashkey1 |
""ukey is the hash key for the string c_addr u fitting in ubits bits"" |
""ukey is the hash key for the string c_addr u fitting in ubits bits"" |
/* this hash function rotates the key at every step by rot bits within |
ukey = hashkey1(c_addr, u, ubits); |
ubits bits and xors it with the character. This function does ok in |
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the chi-sqare-test. Rot should be <=7 (preferably <=5) for |
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ASCII strings (larger if ubits is large), and should share no |
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divisors with ubits. |
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*/ |
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static char rot_values[] = {5,0,1,2,3,4,5,5,5,5,3,5,5,5,5,7,5,5,5,5,7,5,5,5,5,6,5,5,5,5,7,5,5}; |
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unsigned rot = rot_values[ubits]; |
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Char *cp = c_addr; |
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for (ukey=0; cp<c_addr+u; cp++) |
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ukey = ((((ukey<<rot) | (ukey>>(ubits-rot))) |
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^ toupper(*cp)) |
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& ((1<<ubits)-1)); |
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: |
dup rot-values + c@ over 1 swap lshift 1- >r |
dup rot-values + c@ over 1 swap lshift 1- >r |
tuck - 2swap r> 0 2swap bounds |
tuck - 2swap r> 0 2swap bounds |
Line 1435 Create rot-values
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Line 1369 Create rot-values
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\+ |
\+ |
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(parse-white) ( c_addr1 u1 -- c_addr2 u2 ) gforth paren_parse_white |
(parse-white) ( c_addr1 u1 -- c_addr2 u2 ) gforth paren_parse_white |
/* use !isgraph instead of isspace? */ |
struct Cellpair r=parse_white(c_addr1, u1); |
Char *endp = c_addr1+u1; |
c_addr2 = (Char *)(r.n1); |
while (c_addr1<endp && isspace(*c_addr1)) |
u2 = r.n2; |
c_addr1++; |
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if (c_addr1<endp) { |
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for (c_addr2 = c_addr1; c_addr1<endp && !isspace(*c_addr1); c_addr1++) |
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; |
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u2 = c_addr1-c_addr2; |
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} |
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else { |
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c_addr2 = c_addr1; |
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u2 = 0; |
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} |
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: |
BEGIN dup WHILE over c@ bl <= WHILE 1 /string |
BEGIN dup WHILE over c@ bl <= WHILE 1 /string |
REPEAT THEN 2dup |
REPEAT THEN 2dup |
Line 1538 FLUSH_ICACHE(c_addr,u);
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Line 1462 FLUSH_ICACHE(c_addr,u);
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SUPER_END; |
SUPER_END; |
return (Label *)n; |
return (Label *)n; |
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(system) ( c_addr u -- wretval wior ) gforth peren_system |
(system) ( c_addr u -- wretval wior ) gforth paren_system |
#ifndef MSDOS |
#ifndef MSDOS |
int old_tp=terminal_prepped; |
int old_tp=terminal_prepped; |
deprep_terminal(); |
deprep_terminal(); |
Line 1570 wior = IOR(wretval==-1);
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Line 1494 wior = IOR(wretval==-1);
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time&date ( -- nsec nmin nhour nday nmonth nyear ) facility-ext time_and_date |
time&date ( -- nsec nmin nhour nday nmonth nyear ) facility-ext time_and_date |
""Report the current time of day. Seconds, minutes and hours are numbered from 0. |
""Report the current time of day. Seconds, minutes and hours are numbered from 0. |
Months are numbered from 1."" |
Months are numbered from 1."" |
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#if 1 |
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time_t now; |
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struct tm *ltime; |
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time(&now); |
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ltime=localtime(&now); |
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#else |
struct timeval time1; |
struct timeval time1; |
struct timezone zone1; |
struct timezone zone1; |
struct tm *ltime; |
struct tm *ltime; |
Line 1577 gettimeofday(&time1,&zone1);
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Line 1507 gettimeofday(&time1,&zone1);
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/* !! Single Unix specification: |
/* !! Single Unix specification: |
If tzp is not a null pointer, the behaviour is unspecified. */ |
If tzp is not a null pointer, the behaviour is unspecified. */ |
ltime=localtime((time_t *)&time1.tv_sec); |
ltime=localtime((time_t *)&time1.tv_sec); |
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#endif |
nyear =ltime->tm_year+1900; |
nyear =ltime->tm_year+1900; |
nmonth=ltime->tm_mon+1; |
nmonth=ltime->tm_mon+1; |
nday =ltime->tm_mday; |
nday =ltime->tm_mday; |
Line 1674 wior = IOR(unlink(tilde_cstr(c_addr, u,
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Line 1605 wior = IOR(unlink(tilde_cstr(c_addr, u,
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rename-file ( c_addr1 u1 c_addr2 u2 -- wior ) file-ext rename_file |
rename-file ( c_addr1 u1 c_addr2 u2 -- wior ) file-ext rename_file |
""Rename file @i{c_addr1 u1} to new name @i{c_addr2 u2}"" |
""Rename file @i{c_addr1 u1} to new name @i{c_addr2 u2}"" |
char *s1=tilde_cstr(c_addr2, u2, 1); |
wior = rename_file(c_addr1, u1, c_addr2, u2); |
wior = IOR(rename(tilde_cstr(c_addr1, u1, 0), s1)==-1); |
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file-position ( wfileid -- ud wior ) file file_position |
file-position ( wfileid -- ud wior ) file file_position |
/* !! use tell and lseek? */ |
/* !! use tell and lseek? */ |
Line 1701 wior = FILEIO(u2<u1 && ferror((FILE *)wf
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Line 1631 wior = FILEIO(u2<u1 && ferror((FILE *)wf
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if (wior) |
if (wior) |
clearerr((FILE *)wfileid); |
clearerr((FILE *)wfileid); |
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(read-line) ( c_addr u1 wfileid -- u2 flag u3 wior ) file paren_read_line |
(read-line) ( c_addr u1 wfileid -- u2 flag u3 wior ) file paren_read_line |
Cell c; |
struct Cellquad r = read_line(c_addr, u1, wfileid); |
flag=-1; |
u2 = r.n1; |
u3=0; |
flag = r.n2; |
for(u2=0; u2<u1; u2++) |
u3 = r.n3; |
{ |
wior = r.n4; |
c = getc((FILE *)wfileid); |
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u3++; |
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if (c=='\n') break; |
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if (c=='\r') { |
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if ((c = getc((FILE *)wfileid))!='\n') |
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ungetc(c,(FILE *)wfileid); |
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else |
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u3++; |
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break; |
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} |
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if (c==EOF) { |
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flag=FLAG(u2!=0); |
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break; |
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} |
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c_addr[u2] = (Char)c; |
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} |
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wior=FILEIO(ferror((FILE *)wfileid)); |
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\+ |
\+ |
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Line 1755 flush-file ( wfileid -- wior ) file-ext
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Line 1668 flush-file ( wfileid -- wior ) file-ext
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wior = IOR(fflush((FILE *) wfileid)==EOF); |
wior = IOR(fflush((FILE *) wfileid)==EOF); |
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file-status ( c_addr u -- wfam wior ) file-ext file_status |
file-status ( c_addr u -- wfam wior ) file-ext file_status |
char *filename=tilde_cstr(c_addr, u, 1); |
struct Cellpair r = file_status(c_addr, u); |
if (access (filename, F_OK) != 0) { |
wfam = r.n1; |
wfam=0; |
wior = r.n2; |
wior=IOR(1); |
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} |
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else if (access (filename, R_OK | W_OK) == 0) { |
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wfam=2; /* r/w */ |
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wior=0; |
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} |
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else if (access (filename, R_OK) == 0) { |
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wfam=0; /* r/o */ |
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wior=0; |
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} |
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else if (access (filename, W_OK) == 0) { |
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wfam=4; /* w/o */ |
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wior=0; |
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} |
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else { |
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wfam=1; /* well, we cannot access the file, but better deliver a legal |
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access mode (r/o bin), so we get a decent error later upon open. */ |
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wior=0; |
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} |
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file-eof? ( wfileid -- flag ) gforth file_eof_query |
file-eof? ( wfileid -- flag ) gforth file_eof_query |
flag = FLAG(feof((FILE *) wfileid)); |
flag = FLAG(feof((FILE *) wfileid)); |
Line 2024 representation. If the string represents
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Line 1918 representation. If the string represents
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@i{r} is placed on the floating-point stack and @i{flag} is |
@i{r} is placed on the floating-point stack and @i{flag} is |
true. Otherwise, @i{flag} is false. A string of blanks is a special |
true. Otherwise, @i{flag} is false. A string of blanks is a special |
case and represents the floating-point number 0."" |
case and represents the floating-point number 0."" |
/* real signature: c_addr u -- r t / f */ |
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Float r; |
Float r; |
char *number=cstr(c_addr, u, 1); |
flag = to_float(c_addr, u, &r); |
char *endconv; |
if (flag) { |
int sign = 0; |
IF_fpTOS(fp[0] = fpTOS); |
if(number[0]=='-') { |
fp += -1; |
sign = 1; |
fpTOS = r; |
number++; |
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u--; |
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} |
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while(isspace((unsigned)(number[--u])) && u>0); |
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switch(number[u]) |
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{ |
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case 'd': |
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case 'D': |
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case 'e': |
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case 'E': break; |
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default : u++; break; |
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} |
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number[u]='\0'; |
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r=strtod(number,&endconv); |
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if((flag=FLAG(!(Cell)*endconv))) |
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{ |
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IF_fpTOS(fp[0] = fpTOS); |
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fp += -1; |
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fpTOS = sign ? -r : r; |
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} |
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else if(*endconv=='d' || *endconv=='D') |
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{ |
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*endconv='E'; |
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r=strtod(number,&endconv); |
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if((flag=FLAG(!(Cell)*endconv))) |
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{ |
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IF_fpTOS(fp[0] = fpTOS); |
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fp += -1; |
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fpTOS = sign ? -r : r; |
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} |
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} |
} |
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fabs ( r1 -- r2 ) float-ext f_abs |
fabs ( r1 -- r2 ) float-ext f_abs |
Line 2199 v* ( f_addr1 nstride1 f_addr2 nstride2 u
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Line 2062 v* ( f_addr1 nstride1 f_addr2 nstride2 u
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""dot-product: r=v1*v2. The first element of v1 is at f_addr1, the |
""dot-product: r=v1*v2. The first element of v1 is at f_addr1, the |
next at f_addr1+nstride1 and so on (similar for v2). Both vectors have |
next at f_addr1+nstride1 and so on (similar for v2). Both vectors have |
ucount elements."" |
ucount elements."" |
for (r=0.; ucount>0; ucount--) { |
r = v_star(f_addr1, nstride1, f_addr2, nstride2, ucount); |
r += *f_addr1 * *f_addr2; |
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f_addr1 = (Float *)(((Address)f_addr1)+nstride1); |
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f_addr2 = (Float *)(((Address)f_addr2)+nstride2); |
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} |
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: |
: |
>r swap 2swap swap 0e r> 0 ?DO |
>r swap 2swap swap 0e r> 0 ?DO |
dup f@ over + 2swap dup f@ f* f+ over + 2swap |
dup f@ over + 2swap dup f@ f* f+ over + 2swap |
Line 2211 for (r=0.; ucount>0; ucount--) {
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Line 2070 for (r=0.; ucount>0; ucount--) {
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faxpy ( ra f_x nstridex f_y nstridey ucount -- ) gforth |
faxpy ( ra f_x nstridex f_y nstridey ucount -- ) gforth |
""vy=ra*vx+vy"" |
""vy=ra*vx+vy"" |
for (; ucount>0; ucount--) { |
faxpy(ra, f_x, nstridex, f_y, nstridey, ucount); |
*f_y += ra * *f_x; |
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f_x = (Float *)(((Address)f_x)+nstridex); |
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f_y = (Float *)(((Address)f_y)+nstridey); |
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} |
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: |
: |
>r swap 2swap swap r> 0 ?DO |
>r swap 2swap swap r> 0 ?DO |
fdup dup f@ f* over + 2swap dup f@ f+ dup f! over + 2swap |
fdup dup f@ f* over + 2swap dup f@ f+ dup f! over + 2swap |
Line 2420 assert(0);
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Line 2275 assert(0);
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\+ |
\+ |
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\g static_super |
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super0 = lit call |
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include(peeprules.vmg) |
include(peeprules.vmg) |
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\g end |
\g end |