version 1.81, 2001/04/08 13:48:12
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version 1.97, 2002/08/28 21:46:58
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Line 53
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Line 53
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\ your code does not fall through, the results are not stored into the |
\ your code does not fall through, the results are not stored into the |
\ stack. Use different names on both sides of the '--', if you change a |
\ stack. Use different names on both sides of the '--', if you change a |
\ value (some stores to the stack are optimized away). |
\ value (some stores to the stack are optimized away). |
\ |
\ |
\ |
\ For superinstructions the syntax is: |
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\ |
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\ forth-name [/ c-name] = forth-name forth-name ... |
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\ |
\ |
\ |
\ The stack variables have the following types: |
\ The stack variables have the following types: |
\ |
\ |
\ name matches type |
\ name matches type |
\ f.* Bool |
\ f.* Bool |
\ c.* Char |
\ c.* Char |
\ [nw].* Cell |
\ [nw].* Cell |
\ u.* UCell |
\ u.* UCell |
\ d.* DCell |
\ d.* DCell |
\ ud.* UDCell |
\ ud.* UDCell |
Line 101
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Line 104
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\E inst-stream stack-prefix # |
\E inst-stream stack-prefix # |
\E |
\E |
\E set-current |
\E set-current |
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\E store-optimization on |
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\ |
\ |
\ |
\ |
Line 132 undefine(`index')
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Line 136 undefine(`index')
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undefine(`shift') |
undefine(`shift') |
undefine(`symbols') |
undefine(`symbols') |
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\g control |
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noop ( -- ) gforth |
noop ( -- ) gforth |
: |
: |
; |
; |
Line 177 SET_IP((Xt *)(((Cell)(IP-1))+ndisp));
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Line 183 SET_IP((Xt *)(((Cell)(IP-1))+ndisp));
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define(condbranch, |
define(condbranch, |
$1 ( `#'ndisp $2 ) $3 |
$1 ( `#'ndisp $2 ) $3 |
$4 SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
$4 SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
$5 |
$5 |
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\+glocals |
\+glocals |
Line 186 $5
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Line 193 $5
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$1-lp+!`#' ( `#'ndisp `#'nlocals $2 ) $3_lp_plus_store_number |
$1-lp+!`#' ( `#'ndisp `#'nlocals $2 ) $3_lp_plus_store_number |
$4 lp += nlocals; |
$4 lp += nlocals; |
SET_IP((Xt *)(((Cell)(IP-2))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-2))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
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\+ |
\+ |
) |
) |
Line 212 if (f==0) {
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Line 220 if (f==0) {
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sp++; |
sp++; |
IF_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
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?dup-0=-?branch ( #ndisp f -- ) new question_dupe_zero_equals_question_branch |
?dup-0=-?branch ( #ndisp f -- ) new question_dupe_zero_equals_question_branch |
""The run-time procedure compiled by @code{?DUP-0=-IF}."" |
""The run-time procedure compiled by @code{?DUP-0=-IF}."" |
Line 226 if (f!=0) {
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Line 235 if (f!=0) {
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SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
NEXT; |
NEXT; |
} |
} |
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SUPER_CONTINUE; |
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\+ |
\+ |
\f[THEN] |
\f[THEN] |
Line 305 nlimit=0;
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Line 315 nlimit=0;
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(?do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_question_do |
(?do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_question_do |
if (nstart == nlimit) { |
if (nstart == nlimit) { |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
: |
: |
2dup = |
2dup = |
IF r> swap rot >r >r |
IF r> swap rot >r >r |
Line 320 if (nstart == nlimit) {
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Line 331 if (nstart == nlimit) {
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(+do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_plus_do |
(+do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_plus_do |
if (nstart >= nlimit) { |
if (nstart >= nlimit) { |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 335 if (nstart >= nlimit) {
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Line 347 if (nstart >= nlimit) {
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(u+do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_plus_do |
(u+do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_plus_do |
if (ustart >= ulimit) { |
if (ustart >= ulimit) { |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 350 if (ustart >= ulimit) {
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Line 363 if (ustart >= ulimit) {
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(-do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_minus_do |
(-do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_minus_do |
if (nstart <= nlimit) { |
if (nstart <= nlimit) { |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 365 if (nstart <= nlimit) {
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Line 379 if (nstart <= nlimit) {
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(u-do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_minus_do |
(u-do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_minus_do |
if (ustart <= ulimit) { |
if (ustart <= ulimit) { |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
TAIL; |
INST_TAIL; |
} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 409 k ( R:n R:d1 R:d2 -- n R:n R:d1 R:d2 )
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Line 424 k ( R:n R:d1 R:d2 -- n R:n R:d1 R:d2 )
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\ digit is high-level: 0/0% |
\ digit is high-level: 0/0% |
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\g strings |
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move ( c_from c_to ucount -- ) core |
move ( c_from c_to ucount -- ) core |
""Copy the contents of @i{ucount} aus at @i{c-from} to |
""Copy the contents of @i{ucount} aus at @i{c-from} to |
@i{c-to}. @code{move} works correctly even if the two areas overlap."" |
@i{c-to}. @code{move} works correctly even if the two areas overlap."" |
Line 518 u2 = u1-n;
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Line 535 u2 = u1-n;
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: |
: |
tuck - >r + r> dup 0< IF - 0 THEN ; |
tuck - >r + r> dup 0< IF - 0 THEN ; |
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\g arith |
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+ ( n1 n2 -- n ) core plus |
+ ( n1 n2 -- n ) core plus |
n = n1+n2; |
n = n1+n2; |
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Line 915 f = FLAG(u1-u2 < u3-u2);
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Line 934 f = FLAG(u1-u2 < u3-u2);
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: |
: |
over - >r - r> u< ; |
over - >r - r> u< ; |
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\g internal |
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sp@ ( -- a_addr ) gforth sp_fetch |
sp@ ( -- a_addr ) gforth sp_fetch |
a_addr = sp+1; |
a_addr = sp+1; |
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Line 942 fp = f_addr;
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Line 963 fp = f_addr;
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""The primitive compiled by @code{EXIT}."" |
""The primitive compiled by @code{EXIT}."" |
SET_IP((Xt *)w); |
SET_IP((Xt *)w); |
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\g stack |
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>r ( w -- R:w ) core to_r |
>r ( w -- R:w ) core to_r |
: |
: |
(>r) ; |
(>r) ; |
Line 1337 a_addr = (Cell *)DOES_CODE(xt);
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Line 1360 a_addr = (Cell *)DOES_CODE(xt);
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code-address! ( c_addr xt -- ) gforth code_address_store |
code-address! ( c_addr xt -- ) gforth code_address_store |
""Create a code field with code address @i{c-addr} at @i{xt}."" |
""Create a code field with code address @i{c-addr} at @i{xt}."" |
MAKE_CF(xt, c_addr); |
MAKE_CF(xt, c_addr); |
CACHE_FLUSH(xt,(size_t)PFA(0)); |
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: |
: |
! ; |
! ; |
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Line 1345 does-code! ( a_addr xt -- ) gforth does
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Line 1367 does-code! ( a_addr xt -- ) gforth does
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""Create a code field at @i{xt} for a child of a @code{DOES>}-word; |
""Create a code field at @i{xt} for a child of a @code{DOES>}-word; |
@i{a-addr} is the start of the Forth code after @code{DOES>}."" |
@i{a-addr} is the start of the Forth code after @code{DOES>}."" |
MAKE_DOES_CF(xt, a_addr); |
MAKE_DOES_CF(xt, a_addr); |
CACHE_FLUSH(xt,(size_t)PFA(0)); |
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: |
: |
dodoes: over ! cell+ ! ; |
dodoes: over ! cell+ ! ; |
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Line 1353 does-handler! ( a_addr -- ) gforth does_
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Line 1374 does-handler! ( a_addr -- ) gforth does_
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""Create a @code{DOES>}-handler at address @i{a-addr}. Normally, |
""Create a @code{DOES>}-handler at address @i{a-addr}. Normally, |
@i{a-addr} points just behind a @code{DOES>}."" |
@i{a-addr} points just behind a @code{DOES>}."" |
MAKE_DOES_HANDLER(a_addr); |
MAKE_DOES_HANDLER(a_addr); |
CACHE_FLUSH((caddr_t)a_addr,DOES_HANDLER_SIZE); |
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: |
: |
drop ; |
drop ; |
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Line 1381 n=1;
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Line 1401 n=1;
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\f[THEN] |
\f[THEN] |
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\g hostos |
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key-file ( wfileid -- n ) gforth paren_key_file |
key-file ( wfileid -- n ) gforth paren_key_file |
#ifdef HAS_FILE |
#ifdef HAS_FILE |
fflush(stdout); |
fflush(stdout); |
Line 1454 c_addr2 = getenv(cstr(c_addr1,u1,1));
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Line 1476 c_addr2 = getenv(cstr(c_addr1,u1,1));
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u2 = (c_addr2 == NULL ? 0 : strlen(c_addr2)); |
u2 = (c_addr2 == NULL ? 0 : strlen(c_addr2)); |
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open-pipe ( c_addr u wfam -- wfileid wior ) gforth open_pipe |
open-pipe ( c_addr u wfam -- wfileid wior ) gforth open_pipe |
wfileid=(Cell)popen(cstr(c_addr,u,1),fileattr[wfam]); /* ~ expansion of 1st arg? */ |
wfileid=(Cell)popen(cstr(c_addr,u,1),pfileattr[wfam]); /* ~ expansion of 1st arg? */ |
wior = IOR(wfileid==0); /* !! the man page says that errno is not set reliably */ |
wior = IOR(wfileid==0); /* !! the man page says that errno is not set reliably */ |
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close-pipe ( wfileid -- wretval wior ) gforth close_pipe |
close-pipe ( wfileid -- wretval wior ) gforth close_pipe |
Line 1596 if (wior)
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Line 1618 if (wior)
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clearerr((FILE *)wfileid); |
clearerr((FILE *)wfileid); |
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read-line ( c_addr u1 wfileid -- u2 flag wior ) file read_line |
read-line ( c_addr u1 wfileid -- u2 flag wior ) file read_line |
""this is only for backward compatibility"" |
/* this may one day be replaced with : read-line (read-line) nip ; */ |
Cell c; |
Cell c; |
flag=-1; |
flag=-1; |
for(u2=0; u2<u1; u2++) |
for(u2=0; u2<u1; u2++) |
Line 1672 else {
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Line 1694 else {
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\+ |
\+ |
\+floating |
\+floating |
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\g floating |
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comparisons(f, r1 r2, f_, r1, r2, gforth, gforth, float, gforth) |
comparisons(f, r1 r2, f_, r1, r2, gforth, gforth, float, gforth) |
comparisons(f0, r, f_zero_, r, 0., float, gforth, float, gforth) |
comparisons(f0, r, f_zero_, r, 0., float, gforth, float, gforth) |
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Line 2143 Variable UP
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Line 2167 Variable UP
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wcall ( u -- ) gforth |
wcall ( u -- ) gforth |
IF_fpTOS(fp[0]=fpTOS); |
IF_fpTOS(fp[0]=fpTOS); |
FP=fp; |
FP=fp; |
sp=(Cell*)(SYSCALL(Cell(*)(Cell *, void *))u)(sp, &FP); |
sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &FP); |
fp=FP; |
fp=FP; |
IF_spTOS(spTOS=sp[0];) |
IF_spTOS(spTOS=sp[0];) |
IF_fpTOS(fpTOS=fp[0]); |
IF_fpTOS(fpTOS=fp[0]); |
Line 2151 IF_fpTOS(fpTOS=fp[0]);
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Line 2175 IF_fpTOS(fpTOS=fp[0]);
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\+file |
\+file |
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open-dir ( c_addr u -- wdirid wior ) gforth open_dir |
open-dir ( c_addr u -- wdirid wior ) gforth open_dir |
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""Open the directory specified by @i{c-addr, u} |
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and return @i{dir-id} for futher access to it."" |
wdirid = (Cell)opendir(tilde_cstr(c_addr, u, 1)); |
wdirid = (Cell)opendir(tilde_cstr(c_addr, u, 1)); |
wior = IOR(wdirid == 0); |
wior = IOR(wdirid == 0); |
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read-dir ( c_addr u1 wdirid -- u2 flag wior ) gforth read_dir |
read-dir ( c_addr u1 wdirid -- u2 flag wior ) gforth read_dir |
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""Attempt to read the next entry from the directory specified |
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by @i{dir-id} to the buffer of length @i{u1} at address @i{c-addr}. |
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If the attempt fails because there is no more entries, |
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@i{ior}=0, @i{flag}=0, @i{u2}=0, and the buffer is unmodified. |
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If the attempt to read the next entry fails because of any other reason, |
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return @i{ior}<>0. |
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If the attempt succeeds, store file name to the buffer at @i{c-addr} |
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and return @i{ior}=0, @i{flag}=true and @i{u2} equal to the size of the file name. |
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If the length of the file name is greater than @i{u1}, |
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store first @i{u1} characters from file name into the buffer and |
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indicate "name too long" with @i{ior}, @i{flag}=true, and @i{u2}=@i{u1}."" |
struct dirent * dent; |
struct dirent * dent; |
dent = readdir((DIR *)wdirid); |
dent = readdir((DIR *)wdirid); |
wior = 0; |
wior = 0; |
Line 2172 if(dent == NULL) {
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Line 2209 if(dent == NULL) {
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} |
} |
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close-dir ( wdirid -- wior ) gforth close_dir |
close-dir ( wdirid -- wior ) gforth close_dir |
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""Close the directory specified by @i{dir-id}."" |
wior = IOR(closedir((DIR *)wdirid)); |
wior = IOR(closedir((DIR *)wdirid)); |
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filename-match ( c_addr1 u1 c_addr2 u2 -- flag ) gforth match_file |
filename-match ( c_addr1 u1 c_addr2 u2 -- flag ) gforth match_file |
Line 2353 while(a_addr != NULL)
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Line 2391 while(a_addr != NULL)
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\+peephole |
\+peephole |
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\g peephole |
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primtable ( -- wprimtable ) new |
primtable ( -- wprimtable ) new |
""wprimtable is a table containing the xts of the primitives indexed |
""wprimtable is a table containing the xts of the primitives indexed |
by sequence-number in prim (for use in prepare-peephole-table)."" |
by sequence-number in prim (for use in prepare-peephole-table)."" |
Line 2369 peephole-opt ( xt1 xt2 wpeeptable -- xt
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Line 2409 peephole-opt ( xt1 xt2 wpeeptable -- xt
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they cannot be combined, xt is 0."" |
they cannot be combined, xt is 0."" |
xt = peephole_opt(xt1, xt2, wpeeptable); |
xt = peephole_opt(xt1, xt2, wpeeptable); |
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lit_plus = lit + |
call ( #a_callee -- R:a_retaddr ) new |
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call ( #a_callee -- R:a_retaddr ) |
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""Call callee (a variant of docol with inline argument)."" |
""Call callee (a variant of docol with inline argument)."" |
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#ifdef DEBUG |
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{ |
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CFA_TO_NAME((((Cell *)a_callee)-2)); |
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fprintf(stderr,"%08lx: call %08lx %.*s\n",(Cell)ip,(Cell)a_callee, |
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len,name); |
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} |
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#endif |
a_retaddr = (Cell *)IP; |
a_retaddr = (Cell *)IP; |
SET_IP((Xt *)a_callee); |
SET_IP((Xt *)a_callee); |
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useraddr ( #u -- a_addr ) |
useraddr ( #u -- a_addr ) new |
a_addr = (Cell *)(up+u); |
a_addr = (Cell *)(up+u); |
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compile-prim ( xt1 -- xt2 ) new compile_prim |
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xt2 = (Xt)compile_prim((Label)xt1); |
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lit@ / lit_fetch = lit @ |
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lit-perform ( #a_addr -- ) new lit_perform |
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ip=IP; |
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SUPER_END; |
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EXEC(*(Xt *)a_addr); |
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lit+ / lit_plus = lit + |
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does-exec ( #a_cfa -- R:nest a_pfa ) new does_exec |
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a_pfa = PFA(a_cfa); |
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nest = (Cell)ip; |
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IF_spTOS(spTOS = sp[0]); |
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#ifdef DEBUG |
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{ |
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CFA_TO_NAME(a_cfa); |
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fprintf(stderr,"%08lx: does %08lx %.*s\n", |
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(Cell)ip,(Cell)a_cfa,len,name); |
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} |
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#endif |
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SET_IP(DOES_CODE1(a_cfa)); |
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include(peeprules.vmg) |
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\+ |
\+ |