version 1.57, 2000/08/21 20:08:01
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version 1.104, 2002/12/13 15:49:53
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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 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,2000 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 16
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Line 16
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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\ WARNING: This file is processed by m4. Make sure your identifiers |
\ WARNING: This file is processed by m4. Make sure your identifiers |
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 72
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Line 75
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\ df_.* DFloat * |
\ df_.* DFloat * |
\ sf_.* SFloat * |
\ sf_.* SFloat * |
\ xt.* XT |
\ xt.* XT |
\ wid.* WID |
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\ f83name.* F83Name * |
\ f83name.* F83Name * |
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\E stack data-stack sp Cell |
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\E stack fp-stack fp Float |
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\E stack return-stack rp Cell |
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\E |
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\E get-current prefixes set-current |
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\E |
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\E s" Bool" single data-stack type-prefix f |
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\E s" Char" single data-stack type-prefix c |
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\E s" Cell" single data-stack type-prefix n |
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\E s" Cell" single data-stack type-prefix w |
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\E s" UCell" single data-stack type-prefix u |
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\E s" DCell" double data-stack type-prefix d |
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\E s" UDCell" double data-stack type-prefix ud |
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\E s" Float" single fp-stack type-prefix r |
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\E s" Cell *" single data-stack type-prefix a_ |
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\E s" Char *" single data-stack type-prefix c_ |
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\E s" Float *" single data-stack type-prefix f_ |
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\E s" DFloat *" single data-stack type-prefix df_ |
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\E s" SFloat *" single data-stack type-prefix sf_ |
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\E s" Xt" single data-stack type-prefix xt |
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\E s" struct F83Name *" single data-stack type-prefix f83name |
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\E s" struct Longname *" single data-stack type-prefix longname |
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\E |
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\E return-stack stack-prefix R: |
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\E inst-stream stack-prefix # |
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\E |
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\E set-current |
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\E store-optimization on |
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\ |
\ |
\ |
\ |
\ |
\ |
Line 102
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Line 134
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\ these m4 macros would collide with identifiers |
\ these m4 macros would collide with identifiers |
undefine(`index') |
undefine(`index') |
undefine(`shift') |
undefine(`shift') |
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undefine(`symbols') |
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\g control |
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noop ( -- ) gforth |
noop ( -- ) gforth |
; |
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: |
: |
; |
; |
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lit ( -- w ) gforth |
lit ( #w -- w ) gforth |
w = (Cell)NEXT_INST; |
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INC_IP(1); |
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: |
: |
r> dup @ swap cell+ >r ; |
r> dup @ swap cell+ >r ; |
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execute ( xt -- ) core |
execute ( xt -- ) core |
""Perform the semantics represented by the execution token, @i{xt}."" |
""Perform the semantics represented by the execution token, @i{xt}."" |
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#ifndef NO_IP |
ip=IP; |
ip=IP; |
IF_TOS(TOS = sp[0]); |
#endif |
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IF_spTOS(spTOS = sp[0]); |
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SUPER_END; |
EXEC(xt); |
EXEC(xt); |
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perform ( a_addr -- ) gforth |
perform ( a_addr -- ) gforth |
""@code{@@ execute}."" |
""@code{@@ execute}."" |
/* and pfe */ |
/* and pfe */ |
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#ifndef NO_IP |
ip=IP; |
ip=IP; |
IF_TOS(TOS = sp[0]); |
#endif |
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IF_spTOS(spTOS = sp[0]); |
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SUPER_END; |
EXEC(*(Xt *)a_addr); |
EXEC(*(Xt *)a_addr); |
: |
: |
@ execute ; |
@ execute ; |
Line 132 EXEC(*(Xt *)a_addr);
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Line 170 EXEC(*(Xt *)a_addr);
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\fhas? skipbranchprims 0= [IF] |
\fhas? skipbranchprims 0= [IF] |
\+glocals |
\+glocals |
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branch-lp+!# ( -- ) gforth branch_lp_plus_store_number |
branch-lp+!# ( #ndisp #nlocals -- ) gforth branch_lp_plus_store_number |
/* this will probably not be used */ |
/* this will probably not be used */ |
branch_adjust_lp: |
lp += nlocals; |
lp += (Cell)(IP[1]); |
SET_IP((Xt *)(((Cell)(IP-2))+ndisp)); |
goto branch; |
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\+ |
\+ |
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branch ( -- ) gforth |
branch ( #ndisp -- ) gforth |
branch: |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
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: |
: |
r> dup @ + >r ; |
r> dup @ + >r ; |
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\ condbranch(forthname,restline,code,forthcode) |
\ condbranch(forthname,stackeffect,restline,code,forthcode) |
\ this is non-syntactical: code must open a brace that is closed by the macro |
\ this is non-syntactical: code must open a brace that is closed by the macro |
define(condbranch, |
define(condbranch, |
$1 $2 |
$1 ( `#'ndisp $2 ) $3 |
$3 SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
$4 SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
NEXT; |
INST_TAIL; |
} |
} |
else |
SUPER_CONTINUE; |
INC_IP(1); |
$5 |
$4 |
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\+glocals |
\+glocals |
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$1-lp+!# $2_lp_plus_store_number |
$1-lp+!`#' ( `#'ndisp `#'nlocals $2 ) $3_lp_plus_store_number |
$3 goto branch_adjust_lp; |
$4 lp += nlocals; |
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SET_IP((Xt *)(((Cell)(IP-2))+ndisp)); |
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INST_TAIL; |
} |
} |
else |
SUPER_CONTINUE; |
INC_IP(2); |
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\+ |
\+ |
) |
) |
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condbranch(?branch,( f -- ) f83 question_branch, |
condbranch(?branch,f --,f83 question_branch, |
if (f==0) { |
if (f==0) { |
IF_TOS(TOS = sp[0]); |
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,: |
,: |
0= dup \ !f !f |
0= dup \ !f !f |
r> dup @ \ !f !f IP branchoffset |
r> dup @ \ !f !f IP branchoffset |
Line 183 if (f==0) {
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Line 218 if (f==0) {
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\+xconds |
\+xconds |
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?dup-?branch ( f -- f ) new question_dupe_question_branch |
?dup-?branch ( #ndisp f -- f ) new question_dupe_question_branch |
""The run-time procedure compiled by @code{?DUP-IF}."" |
""The run-time procedure compiled by @code{?DUP-IF}."" |
if (f==0) { |
if (f==0) { |
sp++; |
sp++; |
IF_TOS(TOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
NEXT; |
INST_TAIL; |
} |
} |
else |
SUPER_CONTINUE; |
INC_IP(1); |
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?dup-0=-?branch ( 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}."" |
/* the approach taken here of declaring the word as having the stack |
/* the approach taken here of declaring the word as having the stack |
effect ( f -- ) and correcting for it in the branch-taken case costs a |
effect ( f -- ) and correcting for it in the branch-taken case costs a |
Line 202 few cycles in that case, but is easy to
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Line 236 few cycles in that case, but is easy to
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invocation */ |
invocation */ |
if (f!=0) { |
if (f!=0) { |
sp--; |
sp--; |
SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
NEXT; |
NEXT; |
} |
} |
else |
SUPER_CONTINUE; |
INC_IP(1); |
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\+ |
\+ |
\f[THEN] |
\f[THEN] |
\fhas? skiploopprims 0= [IF] |
\fhas? skiploopprims 0= [IF] |
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condbranch((next),( -- ) cmFORTH paren_next, |
condbranch((next),R:n1 -- R:n2,cmFORTH paren_next, |
if ((*rp)--) { |
n2=n1-1; |
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if (n1) { |
,: |
,: |
r> r> dup 1- >r |
r> r> dup 1- >r |
IF dup @ + >r ELSE cell+ >r THEN ;) |
IF dup @ + >r ELSE cell+ >r THEN ;) |
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condbranch((loop),( -- ) gforth paren_loop, |
condbranch((loop),R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_loop, |
Cell index = *rp+1; |
n2=n1+1; |
Cell limit = rp[1]; |
if (n2 != nlimit) { |
if (index != limit) { |
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*rp = index; |
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,: |
,: |
r> r> 1+ r> 2dup = |
r> r> 1+ r> 2dup = |
IF >r 1- >r cell+ >r |
IF >r 1- >r cell+ >r |
ELSE >r >r dup @ + >r THEN ;) |
ELSE >r >r dup @ + >r THEN ;) |
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condbranch((+loop),( n -- ) gforth paren_plus_loop, |
condbranch((+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_plus_loop, |
/* !! check this thoroughly */ |
/* !! check this thoroughly */ |
Cell index = *rp; |
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/* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */ |
/* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */ |
/* dependent upon two's complement arithmetic */ |
/* dependent upon two's complement arithmetic */ |
Cell olddiff = index-rp[1]; |
Cell olddiff = n1-nlimit; |
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n2=n1+n; |
if ((olddiff^(olddiff+n))>=0 /* the limit is not crossed */ |
if ((olddiff^(olddiff+n))>=0 /* the limit is not crossed */ |
|| (olddiff^n)>=0 /* it is a wrap-around effect */) { |
|| (olddiff^n)>=0 /* it is a wrap-around effect */) { |
#ifdef i386 |
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*rp += n; |
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#else |
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*rp = index + n; |
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#endif |
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IF_TOS(TOS = sp[0]); |
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,: |
,: |
r> swap |
r> swap |
r> r> 2dup - >r |
r> r> 2dup - >r |
Line 252 if ((olddiff^(olddiff+n))>=0 /* the li
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Line 278 if ((olddiff^(olddiff+n))>=0 /* the li
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\+xconds |
\+xconds |
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condbranch((-loop),( u -- ) gforth paren_minus_loop, |
condbranch((-loop),u R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_minus_loop, |
/* !! check this thoroughly */ |
UCell olddiff = n1-nlimit; |
Cell index = *rp; |
n2=n1-u; |
UCell olddiff = index-rp[1]; |
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if (olddiff>u) { |
if (olddiff>u) { |
#ifdef i386 |
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*rp -= u; |
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#else |
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*rp = index - u; |
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#endif |
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IF_TOS(TOS = sp[0]); |
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,) |
,) |
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condbranch((s+loop),( n -- ) gforth paren_symmetric_plus_loop, |
condbranch((s+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth paren_symmetric_plus_loop, |
""The run-time procedure compiled by S+LOOP. It loops until the index |
""The run-time procedure compiled by S+LOOP. It loops until the index |
crosses the boundary between limit and limit-sign(n). I.e. a symmetric |
crosses the boundary between limit and limit-sign(n). I.e. a symmetric |
version of (+LOOP)."" |
version of (+LOOP)."" |
/* !! check this thoroughly */ |
/* !! check this thoroughly */ |
Cell index = *rp; |
Cell diff = n1-nlimit; |
Cell diff = index-rp[1]; |
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Cell newdiff = diff+n; |
Cell newdiff = diff+n; |
if (n<0) { |
if (n<0) { |
diff = -diff; |
diff = -diff; |
newdiff = -newdiff; |
newdiff = -newdiff; |
} |
} |
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n2=n1+n; |
if (diff>=0 || newdiff<0) { |
if (diff>=0 || newdiff<0) { |
#ifdef i386 |
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*rp += n; |
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#else |
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*rp = index + n; |
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#endif |
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IF_TOS(TOS = sp[0]); |
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,) |
,) |
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\+ |
\+ |
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unloop ( -- ) core |
unloop ( R:w1 R:w2 -- ) core |
rp += 2; |
/* !! alias for 2rdrop */ |
: |
: |
r> rdrop rdrop >r ; |
r> rdrop rdrop >r ; |
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(for) ( ncount -- ) cmFORTH paren_for |
(for) ( ncount -- R:nlimit R:ncount ) cmFORTH paren_for |
/* or (for) = >r -- collides with unloop! */ |
/* or (for) = >r -- collides with unloop! */ |
*--rp = 0; |
nlimit=0; |
*--rp = ncount; |
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: |
: |
r> swap 0 >r >r >r ; |
r> swap 0 >r >r >r ; |
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(do) ( nlimit nstart -- ) gforth paren_do |
(do) ( nlimit nstart -- R:nlimit R:nstart ) gforth paren_do |
/* or do it in high-level? 0.09/0.23% */ |
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*--rp = nlimit; |
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*--rp = nstart; |
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: |
: |
r> swap rot >r >r >r ; |
r> swap rot >r >r >r ; |
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(?do) ( nlimit nstart -- ) gforth paren_question_do |
(?do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_question_do |
*--rp = nlimit; |
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*--rp = nstart; |
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if (nstart == nlimit) { |
if (nstart == nlimit) { |
IF_TOS(TOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
goto branch; |
INST_TAIL; |
} |
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else { |
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INC_IP(1); |
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} |
} |
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SUPER_CONTINUE; |
: |
: |
2dup = |
2dup = |
IF r> swap rot >r >r |
IF r> swap rot >r >r |
Line 327 else {
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Line 332 else {
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\+xconds |
\+xconds |
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(+do) ( nlimit nstart -- ) gforth paren_plus_do |
(+do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_plus_do |
*--rp = nlimit; |
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*--rp = nstart; |
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if (nstart >= nlimit) { |
if (nstart >= nlimit) { |
IF_TOS(TOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
goto branch; |
INST_TAIL; |
} |
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else { |
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INC_IP(1); |
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} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 347 else {
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Line 348 else {
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cell+ |
cell+ |
THEN >r ; |
THEN >r ; |
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(u+do) ( ulimit ustart -- ) gforth paren_u_plus_do |
(u+do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_plus_do |
*--rp = ulimit; |
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*--rp = ustart; |
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if (ustart >= ulimit) { |
if (ustart >= ulimit) { |
IF_TOS(TOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
goto branch; |
INST_TAIL; |
} |
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else { |
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INC_IP(1); |
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} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 367 else {
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Line 364 else {
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cell+ |
cell+ |
THEN >r ; |
THEN >r ; |
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(-do) ( nlimit nstart -- ) gforth paren_minus_do |
(-do) ( #ndisp nlimit nstart -- R:nlimit R:nstart ) gforth paren_minus_do |
*--rp = nlimit; |
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*--rp = nstart; |
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if (nstart <= nlimit) { |
if (nstart <= nlimit) { |
IF_TOS(TOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
goto branch; |
INST_TAIL; |
} |
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else { |
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INC_IP(1); |
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} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 387 else {
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Line 380 else {
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cell+ |
cell+ |
THEN >r ; |
THEN >r ; |
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(u-do) ( ulimit ustart -- ) gforth paren_u_minus_do |
(u-do) ( #ndisp ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_minus_do |
*--rp = ulimit; |
|
*--rp = ustart; |
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if (ustart <= ulimit) { |
if (ustart <= ulimit) { |
IF_TOS(TOS = sp[0]); |
SET_IP((Xt *)(((Cell)(IP-1))+ndisp)); |
goto branch; |
INST_TAIL; |
} |
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else { |
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INC_IP(1); |
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} |
} |
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SUPER_CONTINUE; |
: |
: |
swap 2dup |
swap 2dup |
r> swap >r swap >r |
r> swap >r swap >r |
Line 412 else {
|
Line 401 else {
|
\ don't make any assumptions where the return stack is!! |
\ don't make any assumptions where the return stack is!! |
\ implement this in machine code if it should run quickly! |
\ implement this in machine code if it should run quickly! |
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i ( -- n ) core |
i ( R:n -- R:n n ) core |
n = *rp; |
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: |
: |
\ rp@ cell+ @ ; |
\ rp@ cell+ @ ; |
r> r> tuck >r >r ; |
r> r> tuck >r >r ; |
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i' ( -- w ) gforth i_tick |
i' ( R:w R:w2 -- R:w R:w2 w ) gforth i_tick |
""loop end value"" |
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w = rp[1]; |
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: |
: |
\ rp@ cell+ cell+ @ ; |
\ rp@ cell+ cell+ @ ; |
r> r> r> dup itmp ! >r >r >r itmp @ ; |
r> r> r> dup itmp ! >r >r >r itmp @ ; |
variable itmp |
variable itmp |
|
|
j ( -- n ) core |
j ( R:n R:d1 -- n R:n R:d1 ) core |
n = rp[2]; |
|
: |
: |
\ rp@ cell+ cell+ cell+ @ ; |
\ rp@ cell+ cell+ cell+ @ ; |
r> r> r> r> dup itmp ! >r >r >r >r itmp @ ; |
r> r> r> r> dup itmp ! >r >r >r >r itmp @ ; |
[IFUNDEF] itmp variable itmp [THEN] |
[IFUNDEF] itmp variable itmp [THEN] |
|
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k ( -- n ) gforth |
k ( R:n R:d1 R:d2 -- n R:n R:d1 R:d2 ) gforth |
n = rp[4]; |
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: |
: |
\ rp@ [ 5 cells ] Literal + @ ; |
\ rp@ [ 5 cells ] Literal + @ ; |
r> r> r> r> r> r> dup itmp ! >r >r >r >r >r >r itmp @ ; |
r> r> r> r> r> r> dup itmp ! >r >r >r >r >r >r itmp @ ; |
Line 444 n = rp[4];
|
Line 428 n = rp[4];
|
|
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\ digit is high-level: 0/0% |
\ digit is high-level: 0/0% |
|
|
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\g strings |
|
|
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 553 u2 = u1-n;
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Line 539 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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|
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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; |
|
|
Line 950 f = FLAG(u1-u2 < u3-u2);
|
Line 938 f = FLAG(u1-u2 < u3-u2);
|
: |
: |
over - >r - r> u< ; |
over - >r - r> u< ; |
|
|
|
\g internal |
|
|
sp@ ( -- a_addr ) gforth sp_fetch |
sp@ ( -- a_addr ) gforth sp_fetch |
a_addr = sp+1; |
a_addr = sp+1; |
|
|
sp! ( a_addr -- ) gforth sp_store |
sp! ( a_addr -- ) gforth sp_store |
sp = a_addr; |
sp = a_addr; |
/* works with and without TOS caching */ |
/* works with and without spTOS caching */ |
|
|
rp@ ( -- a_addr ) gforth rp_fetch |
rp@ ( -- a_addr ) gforth rp_fetch |
a_addr = rp; |
a_addr = rp; |
Line 973 fp = f_addr;
|
Line 963 fp = f_addr;
|
|
|
\+ |
\+ |
|
|
;s ( -- ) gforth semis |
;s ( R:w -- ) gforth semis |
""The primitive compiled by @code{EXIT}."" |
""The primitive compiled by @code{EXIT}."" |
SET_IP((Xt *)(*rp++)); |
#ifdef NO_IP |
|
INST_TAIL; |
|
goto *(void *)w; |
|
#else |
|
SET_IP((Xt *)w); |
|
#endif |
|
|
|
\g stack |
|
|
>r ( w -- ) core to_r |
>r ( w -- R:w ) core to_r |
""@code{( R: -- w )}"" |
|
*--rp = w; |
|
: |
: |
(>r) ; |
(>r) ; |
: (>r) rp@ cell+ @ rp@ ! rp@ cell+ ! ; |
: (>r) rp@ cell+ @ rp@ ! rp@ cell+ ! ; |
|
|
r> ( -- w ) core r_from |
r> ( R:w -- w ) core r_from |
""@code{( R: w -- )}"" |
|
w = *rp++; |
|
: |
: |
rp@ cell+ @ rp@ @ rp@ cell+ ! (rdrop) rp@ ! ; |
rp@ cell+ @ rp@ @ rp@ cell+ ! (rdrop) rp@ ! ; |
Create (rdrop) ' ;s A, |
Create (rdrop) ' ;s A, |
|
|
rdrop ( -- ) gforth |
rdrop ( R:w -- ) gforth |
""@code{( R: w -- )}"" |
|
rp++; |
|
: |
: |
r> r> drop >r ; |
r> r> drop >r ; |
|
|
2>r ( w1 w2 -- ) core-ext two_to_r |
2>r ( w1 w2 -- R:w1 R:w2 ) core-ext two_to_r |
""@code{( R: -- w1 w2 )}"" |
|
*--rp = w1; |
|
*--rp = w2; |
|
: |
: |
swap r> swap >r swap >r >r ; |
swap r> swap >r swap >r >r ; |
|
|
2r> ( -- w1 w2 ) core-ext two_r_from |
2r> ( R:w1 R:w2 -- w1 w2 ) core-ext two_r_from |
""@code{( R: w1 w2 -- )}"" |
|
w2 = *rp++; |
|
w1 = *rp++; |
|
: |
: |
r> r> swap r> swap >r swap ; |
r> r> swap r> swap >r swap ; |
|
|
2r@ ( -- w1 w2 ) core-ext two_r_fetch |
2r@ ( R:w1 R:w2 -- R:w1 R:w2 w1 w2 ) core-ext two_r_fetch |
""@code{( R: w1 w2 -- w1 w2 )}"" |
|
w2 = rp[0]; |
|
w1 = rp[1]; |
|
: |
: |
i' j ; |
i' j ; |
|
|
2rdrop ( -- ) gforth two_r_drop |
2rdrop ( R:w1 R:w2 -- ) gforth two_r_drop |
""@code{( R: w1 w2 -- )}"" |
|
rp+=2; |
|
: |
: |
r> r> drop r> drop >r ; |
r> r> drop r> drop >r ; |
|
|
Line 1066 tuck ( w1 w2 -- w2 w1 w2 ) core-ext
|
Line 1046 tuck ( w1 w2 -- w2 w1 w2 ) core-ext
|
""Actually the stack effect is: @code{( w -- 0 | w w )}. It performs a |
""Actually the stack effect is: @code{( w -- 0 | w w )}. It performs a |
@code{dup} if w is nonzero."" |
@code{dup} if w is nonzero."" |
if (w!=0) { |
if (w!=0) { |
IF_TOS(*sp-- = w;) |
IF_spTOS(*sp-- = w;) |
#ifndef USE_TOS |
#ifndef USE_TOS |
*--sp = w; |
*--sp = w; |
#endif |
#endif |
Line 1244 f83name2=f83name1;
|
Line 1224 f83name2=f83name1;
|
r> @ |
r> @ |
REPEAT THEN nip nip ; |
REPEAT THEN nip nip ; |
: (find-samelen) ( u f83name1 -- u f83name2/0 ) |
: (find-samelen) ( u f83name1 -- u f83name2/0 ) |
BEGIN 2dup cell+ c@ $1F and <> WHILE @ dup 0= UNTIL THEN ; |
BEGIN 2dup cell+ c@ $1F and <> WHILE @ dup 0= UNTIL THEN ; |
|
|
\+hash |
\+hash |
|
|
Line 1379 c_addr = (Address)CODE_ADDRESS(xt);
|
Line 1359 c_addr = (Address)CODE_ADDRESS(xt);
|
@ ; |
@ ; |
|
|
>does-code ( xt -- a_addr ) gforth to_does_code |
>does-code ( xt -- a_addr ) gforth to_does_code |
""If @i{xt} is the execution token of a defining-word-defined word, |
""If @i{xt} is the execution token of a child of a @code{DOES>} word, |
@i{a-addr} is the start of the Forth code after the @code{DOES>}; |
@i{a-addr} is the start of the Forth code after the @code{DOES>}; |
Otherwise @i{a-addr} is 0."" |
Otherwise @i{a-addr} is 0."" |
a_addr = (Cell *)DOES_CODE(xt); |
a_addr = (Cell *)DOES_CODE(xt); |
Line 1389 a_addr = (Cell *)DOES_CODE(xt);
|
Line 1369 a_addr = (Cell *)DOES_CODE(xt);
|
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)); |
|
: |
: |
! ; |
! ; |
|
|
does-code! ( a_addr xt -- ) gforth does_code_store |
does-code! ( a_addr xt -- ) gforth does_code_store |
""Create a code field at @i{xt} for a defining-word-defined word; @i{a-addr} |
""Create a code field at @i{xt} for a child of a @code{DOES>}-word; |
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)); |
|
: |
: |
dodoes: over ! cell+ ! ; |
dodoes: over ! cell+ ! ; |
|
|
does-handler! ( a_addr -- ) gforth does_handler_store |
does-handler! ( a_addr -- ) gforth does_handler_store |
""Create a @code{DOES>}-handler at address @i{a-addr}. Usually, @i{a-addr} points |
""Create a @code{DOES>}-handler at address @i{a-addr}. Normally, |
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); |
|
: |
: |
drop ; |
drop ; |
|
|
Line 1433 n=1;
|
Line 1410 n=1;
|
|
|
\f[THEN] |
\f[THEN] |
|
|
|
\g hostos |
|
|
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 1481 cache.""
|
Line 1460 cache.""
|
FLUSH_ICACHE(c_addr,u); |
FLUSH_ICACHE(c_addr,u); |
|
|
(bye) ( n -- ) gforth paren_bye |
(bye) ( n -- ) gforth paren_bye |
|
SUPER_END; |
return (Label *)n; |
return (Label *)n; |
|
|
(system) ( c_addr u -- wretval wior ) gforth peren_system |
(system) ( c_addr u -- wretval wior ) gforth peren_system |
Line 1505 c_addr2 = getenv(cstr(c_addr1,u1,1));
|
Line 1485 c_addr2 = getenv(cstr(c_addr1,u1,1));
|
u2 = (c_addr2 == NULL ? 0 : strlen(c_addr2)); |
u2 = (c_addr2 == NULL ? 0 : strlen(c_addr2)); |
|
|
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 */ |
|
|
close-pipe ( wfileid -- wretval wior ) gforth close_pipe |
close-pipe ( wfileid -- wretval wior ) gforth close_pipe |
Line 1584 access the stack itself. The stack point
|
Line 1564 access the stack itself. The stack point
|
variables @code{SP} and @code{FP}."" |
variables @code{SP} and @code{FP}."" |
/* This is a first attempt at support for calls to C. This may change in |
/* This is a first attempt at support for calls to C. This may change in |
the future */ |
the future */ |
IF_FTOS(fp[0]=FTOS); |
IF_fpTOS(fp[0]=fpTOS); |
FP=fp; |
FP=fp; |
SP=sp; |
SP=sp; |
((void (*)())w)(); |
((void (*)())w)(); |
sp=SP; |
sp=SP; |
fp=FP; |
fp=FP; |
IF_TOS(TOS=sp[0]); |
IF_spTOS(spTOS=sp[0]); |
IF_FTOS(FTOS=fp[0]); |
IF_fpTOS(fpTOS=fp[0]); |
|
|
\+ |
\+ |
\+file |
\+file |
Line 1647 if (wior)
|
Line 1627 if (wior)
|
clearerr((FILE *)wfileid); |
clearerr((FILE *)wfileid); |
|
|
read-line ( c_addr u1 wfileid -- u2 flag wior ) file read_line |
read-line ( c_addr u1 wfileid -- u2 flag wior ) file read_line |
#if 1 |
/* 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 1666 for(u2=0; u2<u1; u2++)
|
Line 1646 for(u2=0; u2<u1; u2++)
|
c_addr[u2] = (Char)c; |
c_addr[u2] = (Char)c; |
} |
} |
wior=FILEIO(ferror((FILE *)wfileid)); |
wior=FILEIO(ferror((FILE *)wfileid)); |
#else |
|
if ((flag=FLAG(!feof((FILE *)wfileid) && |
|
fgets(c_addr,u1+1,(FILE *)wfileid) != NULL))) { |
|
wior=FILEIO(ferror((FILE *)wfileid)!=0); /* !! ior? */ |
|
if (wior) |
|
clearerr((FILE *)wfileid); |
|
u2 = strlen(c_addr); |
|
u2-=((u2>0) && (c_addr[u2-1]==NEWLINE)); |
|
} |
|
else { |
|
wior=0; |
|
u2=0; |
|
} |
|
#endif |
|
|
|
\+ |
\+ |
|
|
Line 1737 else {
|
Line 1703 else {
|
\+ |
\+ |
\+floating |
\+floating |
|
|
|
\g floating |
|
|
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) |
|
|
Line 1749 r = d;
|
Line 1717 r = d;
|
#endif |
#endif |
|
|
f>d ( r -- d ) float f_to_d |
f>d ( r -- d ) float f_to_d |
#ifdef BUGGY_LONG_LONG |
extern DCell double2ll(Float r); |
d.hi = ldexp(r,-(int)(CELL_BITS)) - (r<0); |
d = double2ll(r); |
d.lo = r-ldexp((Float)d.hi,CELL_BITS); |
|
#else |
|
d = r; |
|
#endif |
|
|
|
f! ( r f_addr -- ) float f_store |
f! ( r f_addr -- ) float f_store |
""Store @i{r} into the float at address @i{f-addr}."" |
""Store @i{r} into the float at address @i{f-addr}."" |
Line 1844 floor ( r1 -- r2 ) float
|
Line 1808 floor ( r1 -- r2 ) float
|
/* !! unclear wording */ |
/* !! unclear wording */ |
r2 = floor(r1); |
r2 = floor(r1); |
|
|
fround ( r1 -- r2 ) float f_round |
(fround) ( r1 -- r2 ) gforth paren_f_round |
""Round to the nearest integral value."" |
""Round to the nearest integral value. Primitive variant (unused)"" |
|
/* !! eliminate this as primitive? */ |
/* !! unclear wording */ |
/* !! unclear wording */ |
#ifdef HAVE_RINT |
#ifdef HAVE_RINT |
r2 = rint(r1); |
r2 = rint(r1); |
Line 1906 number[u]='\0';
|
Line 1871 number[u]='\0';
|
r=strtod(number,&endconv); |
r=strtod(number,&endconv); |
if((flag=FLAG(!(Cell)*endconv))) |
if((flag=FLAG(!(Cell)*endconv))) |
{ |
{ |
IF_FTOS(fp[0] = FTOS); |
IF_fpTOS(fp[0] = fpTOS); |
fp += -1; |
fp += -1; |
FTOS = sign ? -r : r; |
fpTOS = sign ? -r : r; |
} |
} |
else if(*endconv=='d' || *endconv=='D') |
else if(*endconv=='d' || *endconv=='D') |
{ |
{ |
Line 1916 else if(*endconv=='d' || *endconv=='D')
|
Line 1881 else if(*endconv=='d' || *endconv=='D')
|
r=strtod(number,&endconv); |
r=strtod(number,&endconv); |
if((flag=FLAG(!(Cell)*endconv))) |
if((flag=FLAG(!(Cell)*endconv))) |
{ |
{ |
IF_FTOS(fp[0] = FTOS); |
IF_fpTOS(fp[0] = fpTOS); |
fp += -1; |
fp += -1; |
FTOS = sign ? -r : r; |
fpTOS = sign ? -r : r; |
} |
} |
} |
} |
|
|
Line 2063 df_addr = (DFloat *)((((Cell)c_addr)+(si
|
Line 2028 df_addr = (DFloat *)((((Cell)c_addr)+(si
|
\+ |
\+ |
\+glocals |
\+glocals |
|
|
@local# ( -- w ) gforth fetch_local_number |
@local# ( #noffset -- w ) gforth fetch_local_number |
w = *(Cell *)(lp+(Cell)NEXT_INST); |
w = *(Cell *)(lp+noffset); |
INC_IP(1); |
|
|
|
@local0 ( -- w ) new fetch_local_zero |
@local0 ( -- w ) new fetch_local_zero |
w = *(Cell *)(lp+0*sizeof(Cell)); |
w = *(Cell *)(lp+0*sizeof(Cell)); |
Line 2081 w = *(Cell *)(lp+3*sizeof(Cell));
|
Line 2045 w = *(Cell *)(lp+3*sizeof(Cell));
|
|
|
\+floating |
\+floating |
|
|
f@local# ( -- r ) gforth f_fetch_local_number |
f@local# ( #noffset -- r ) gforth f_fetch_local_number |
r = *(Float *)(lp+(Cell)NEXT_INST); |
r = *(Float *)(lp+noffset); |
INC_IP(1); |
|
|
|
f@local0 ( -- r ) new f_fetch_local_zero |
f@local0 ( -- r ) new f_fetch_local_zero |
r = *(Float *)(lp+0*sizeof(Float)); |
r = *(Float *)(lp+0*sizeof(Float)); |
Line 2093 r = *(Float *)(lp+1*sizeof(Float));
|
Line 2056 r = *(Float *)(lp+1*sizeof(Float));
|
|
|
\+ |
\+ |
|
|
laddr# ( -- c_addr ) gforth laddr_number |
laddr# ( #noffset -- c_addr ) gforth laddr_number |
/* this can also be used to implement lp@ */ |
/* this can also be used to implement lp@ */ |
c_addr = (Char *)(lp+(Cell)NEXT_INST); |
c_addr = (Char *)(lp+noffset); |
INC_IP(1); |
|
|
|
lp+!# ( -- ) gforth lp_plus_store_number |
lp+!# ( #noffset -- ) gforth lp_plus_store_number |
""used with negative immediate values it allocates memory on the |
""used with negative immediate values it allocates memory on the |
local stack, a positive immediate argument drops memory from the local |
local stack, a positive immediate argument drops memory from the local |
stack"" |
stack"" |
lp += (Cell)NEXT_INST; |
lp += noffset; |
INC_IP(1); |
|
|
|
lp- ( -- ) new minus_four_lp_plus_store |
lp- ( -- ) new minus_four_lp_plus_store |
lp += -sizeof(Cell); |
lp += -sizeof(Cell); |
Line 2210 UP=up=(char *)a_addr;
|
Line 2171 UP=up=(char *)a_addr;
|
Variable UP |
Variable UP |
|
|
wcall ( u -- ) gforth |
wcall ( u -- ) gforth |
IF_FTOS(fp[0]=FTOS); |
IF_fpTOS(fp[0]=fpTOS); |
FP=fp; |
FP=fp; |
sp=(SYSCALL(Cell(*)(Cell *, void *))u)(sp, &FP); |
sp=(Cell*)(SYSCALL(Cell*(*)(Cell *, void *))u)(sp, &FP); |
fp=FP; |
fp=FP; |
IF_TOS(TOS=sp[0];) |
IF_spTOS(spTOS=sp[0];) |
IF_FTOS(FTOS=fp[0]); |
IF_fpTOS(fpTOS=fp[0]); |
|
|
\+file |
\+file |
|
|
open-dir ( c_addr u -- wdirid wior ) gforth open_dir |
open-dir ( c_addr u -- wdirid wior ) gforth open_dir |
|
""Open the directory specified by @i{c-addr, u} |
|
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); |
|
|
read-dir ( c_addr u1 wdirid -- u2 flag wior ) gforth read_dir |
read-dir ( c_addr u1 wdirid -- u2 flag wior ) gforth read_dir |
|
""Attempt to read the next entry from the directory specified |
|
by @i{dir-id} to the buffer of length @i{u1} at address @i{c-addr}. |
|
If the attempt fails because there is no more entries, |
|
@i{ior}=0, @i{flag}=0, @i{u2}=0, and the buffer is unmodified. |
|
If the attempt to read the next entry fails because of any other reason, |
|
return @i{ior}<>0. |
|
If the attempt succeeds, store file name to the buffer at @i{c-addr} |
|
and return @i{ior}=0, @i{flag}=true and @i{u2} equal to the size of the file name. |
|
If the length of the file name is greater than @i{u1}, |
|
store first @i{u1} characters from file name into the buffer and |
|
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 2233 if(dent == NULL) {
|
Line 2207 if(dent == NULL) {
|
flag = 0; |
flag = 0; |
} else { |
} else { |
u2 = strlen(dent->d_name); |
u2 = strlen(dent->d_name); |
if(u2 > u1) |
if(u2 > u1) { |
u2 = u1; |
u2 = u1; |
|
wior = -512-ENAMETOOLONG; |
|
} |
memmove(c_addr, dent->d_name, u2); |
memmove(c_addr, dent->d_name, u2); |
} |
} |
|
|
close-dir ( wdirid -- wior ) gforth close_dir |
close-dir ( wdirid -- wior ) gforth close_dir |
|
""Close the directory specified by @i{dir-id}."" |
wior = IOR(closedir((DIR *)wdirid)); |
wior = IOR(closedir((DIR *)wdirid)); |
|
|
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 2251 flag = FLAG(!fnmatch(pattern, string, 0)
|
Line 2228 flag = FLAG(!fnmatch(pattern, string, 0)
|
newline ( -- c_addr u ) gforth |
newline ( -- c_addr u ) gforth |
""String containing the newline sequence of the host OS"" |
""String containing the newline sequence of the host OS"" |
char newline[] = { |
char newline[] = { |
#ifdef unix |
#if defined(unix) || defined(__MACH__) |
|
/* Darwin/MacOS X sets __MACH__, but not unix. */ |
'\n' |
'\n' |
#else |
#else |
'\r','\n' |
'\r','\n' |
Line 2324 for (; ucount>0; ucount--) {
|
Line 2302 for (; ucount>0; ucount--) {
|
LOOP 2drop 2drop fdrop ; |
LOOP 2drop 2drop fdrop ; |
|
|
\+ |
\+ |
|
|
|
\+file |
|
|
|
(read-line) ( c_addr u1 wfileid -- u2 flag u3 wior ) file paren_read_line |
|
Cell c; |
|
flag=-1; |
|
u3=0; |
|
for(u2=0; u2<u1; u2++) |
|
{ |
|
c = getc((FILE *)wfileid); |
|
u3++; |
|
if (c=='\n') break; |
|
if (c=='\r') { |
|
if ((c = getc((FILE *)wfileid))!='\n') |
|
ungetc(c,(FILE *)wfileid); |
|
else |
|
u3++; |
|
break; |
|
} |
|
if (c==EOF) { |
|
flag=FLAG(u2!=0); |
|
break; |
|
} |
|
c_addr[u2] = (Char)c; |
|
} |
|
wior=FILEIO(ferror((FILE *)wfileid)); |
|
|
|
\+ |
|
|
|
(listlfind) ( c_addr u longname1 -- longname2 ) new paren_listlfind |
|
for (; longname1 != NULL; longname1 = (struct Longname *)(longname1->next)) |
|
if ((UCell)LONGNAME_COUNT(longname1)==u && |
|
memcasecmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
|
break; |
|
longname2=longname1; |
|
: |
|
BEGIN dup WHILE (findl-samelen) dup WHILE |
|
>r 2dup r@ cell+ cell+ capscomp 0= |
|
IF 2drop r> EXIT THEN |
|
r> @ |
|
REPEAT THEN nip nip ; |
|
: (findl-samelen) ( u longname1 -- u longname2/0 ) |
|
BEGIN 2dup cell+ @ lcount-mask and <> WHILE @ dup 0= UNTIL THEN ; |
|
|
|
\+hash |
|
|
|
(hashlfind) ( c_addr u a_addr -- longname2 ) new paren_hashlfind |
|
struct Longname *longname1; |
|
longname2=NULL; |
|
while(a_addr != NULL) |
|
{ |
|
longname1=(struct Longname *)(a_addr[1]); |
|
a_addr=(Cell *)(a_addr[0]); |
|
if ((UCell)LONGNAME_COUNT(longname1)==u && |
|
memcasecmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
|
{ |
|
longname2=longname1; |
|
break; |
|
} |
|
} |
|
: |
|
BEGIN dup WHILE |
|
2@ >r >r dup r@ cell+ @ lcount-mask and = |
|
IF 2dup r@ cell+ cell+ capscomp 0= |
|
IF 2drop r> rdrop EXIT THEN THEN |
|
rdrop r> |
|
REPEAT nip nip ; |
|
|
|
(tablelfind) ( c_addr u a_addr -- longname2 ) new paren_tablelfind |
|
""A case-sensitive variant of @code{(hashfind)}"" |
|
struct Longname *longname1; |
|
longname2=NULL; |
|
while(a_addr != NULL) |
|
{ |
|
longname1=(struct Longname *)(a_addr[1]); |
|
a_addr=(Cell *)(a_addr[0]); |
|
if ((UCell)LONGNAME_COUNT(longname1)==u && |
|
memcmp(c_addr, longname1->name, u)== 0 /* or inline? */) |
|
{ |
|
longname2=longname1; |
|
break; |
|
} |
|
} |
|
: |
|
BEGIN dup WHILE |
|
2@ >r >r dup r@ cell+ @ lcount-mask and = |
|
IF 2dup r@ cell+ cell+ -text 0= |
|
IF 2drop r> rdrop EXIT THEN THEN |
|
rdrop r> |
|
REPEAT nip nip ; |
|
|
|
\+ |
|
|
|
\+peephole |
|
|
|
\g peephole |
|
|
|
primtable ( -- wprimtable ) new |
|
""wprimtable is a table containing the xts of the primitives indexed |
|
by sequence-number in prim (for use in prepare-peephole-table)."" |
|
wprimtable = (Cell)primtable(symbols+DOESJUMP+1,MAX_SYMBOLS-DOESJUMP-1); |
|
|
|
prepare-peephole-table ( wprimtable -- wpeeptable ) new prepare_peephole_opt |
|
""wpeeptable is a data structure used by @code{peephole-opt}; it is |
|
constructed by combining a primitives table with a simple peephole |
|
optimization table."" |
|
wpeeptable = prepare_peephole_table((Xt *)wprimtable); |
|
|
|
peephole-opt ( xt1 xt2 wpeeptable -- xt ) new peephole_opt |
|
""xt is the combination of xt1 and xt2 (according to wpeeptable); if |
|
they cannot be combined, xt is 0."" |
|
xt = peephole_opt(xt1, xt2, wpeeptable); |
|
|
|
call ( #a_callee -- R:a_retaddr ) new |
|
""Call callee (a variant of docol with inline argument)."" |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
JUMP(a_callee); |
|
#else |
|
#ifdef DEBUG |
|
{ |
|
CFA_TO_NAME((((Cell *)a_callee)-2)); |
|
fprintf(stderr,"%08lx: call %08lx %.*s\n",(Cell)ip,(Cell)a_callee, |
|
len,name); |
|
} |
|
#endif |
|
a_retaddr = (Cell *)IP; |
|
SET_IP((Xt *)a_callee); |
|
#endif |
|
|
|
useraddr ( #u -- a_addr ) new |
|
a_addr = (Cell *)(up+u); |
|
|
|
compile-prim ( xt1 -- xt2 ) new compile_prim |
|
xt2 = (Xt)compile_prim((Label)xt1); |
|
|
|
\ lit@ / lit_fetch = lit @ |
|
|
|
lit@ ( #a_addr -- w ) new lit_fetch |
|
w = *a_addr; |
|
|
|
lit-perform ( #a_addr -- ) new lit_perform |
|
#ifndef NO_IP |
|
ip=IP; |
|
#endif |
|
SUPER_END; |
|
EXEC(*(Xt *)a_addr); |
|
|
|
\ lit+ / lit_plus = lit + |
|
|
|
lit+ ( n1 #n2 -- n ) new lit_plus |
|
n=n1+n2; |
|
|
|
does-exec ( #a_cfa -- R:nest a_pfa ) new does_exec |
|
#ifdef NO_IP |
|
/* compiled to LIT CALL by compile_prim */ |
|
assert(0); |
|
#else |
|
a_pfa = PFA(a_cfa); |
|
nest = (Cell)IP; |
|
IF_spTOS(spTOS = sp[0]); |
|
#ifdef DEBUG |
|
{ |
|
CFA_TO_NAME(a_cfa); |
|
fprintf(stderr,"%08lx: does %08lx %.*s\n", |
|
(Cell)ip,(Cell)a_cfa,len,name); |
|
} |
|
#endif |
|
SET_IP(DOES_CODE1(a_cfa)); |
|
#endif |
|
|
|
abranch-lp+!# ( #a_target #nlocals -- ) gforth abranch_lp_plus_store_number |
|
/* this will probably not be used */ |
|
lp += nlocals; |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
#endif |
|
|
|
\+ |
|
|
|
abranch ( #a_target -- ) gforth |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
#endif |
|
: |
|
r> @ >r ; |
|
|
|
\ acondbranch(forthname,stackeffect,restline,code1,code2,forthcode) |
|
\ this is non-syntactical: code must open a brace that is closed by the macro |
|
define(acondbranch, |
|
$1 ( `#'a_target $2 ) $3 |
|
$4 #ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
$5 #ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
$6 |
|
|
|
\+glocals |
|
|
|
$1-lp+!`#' ( `#'a_target `#'nlocals $2 ) $3_lp_plus_store_number |
|
$4 #ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
$5 lp += nlocals; |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
|
|
\+ |
|
) |
|
|
|
acondbranch(a?branch,f --,f83 aquestion_branch, |
|
,if (f==0) { |
|
,: |
|
0= dup \ !f !f \ !! still uses relative addresses |
|
r> dup @ \ !f !f IP branchoffset |
|
rot and + \ !f IP|IP+branchoffset |
|
swap 0= cell and + \ IP'' |
|
>r ;) |
|
|
|
\ we don't need an lp_plus_store version of the ?dup-stuff, because it |
|
\ is only used in if's (yet) |
|
|
|
\+xconds |
|
|
|
a?dup-?branch ( #a_target f -- f ) new aquestion_dupe_question_branch |
|
""The run-time procedure compiled by @code{?DUP-IF}."" |
|
if (f==0) { |
|
sp++; |
|
IF_spTOS(spTOS = sp[0]); |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
|
|
a?dup-0=-?branch ( #a_target f -- ) new aquestion_dupe_zero_equals_question_branch |
|
""The run-time procedure compiled by @code{?DUP-0=-IF}."" |
|
/* the approach taken here of declaring the word as having the stack |
|
effect ( f -- ) and correcting for it in the branch-taken case costs a |
|
few cycles in that case, but is easy to convert to a CONDBRANCH |
|
invocation */ |
|
if (f!=0) { |
|
sp--; |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
NEXT; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
|
|
\+ |
|
\f[THEN] |
|
\fhas? skiploopprims 0= [IF] |
|
|
|
acondbranch(a(next),R:n1 -- R:n2,cmFORTH aparen_next, |
|
n2=n1-1; |
|
,if (n1) { |
|
,: |
|
r> r> dup 1- >r |
|
IF @ >r ELSE cell+ >r THEN ;) |
|
|
|
acondbranch(a(loop),R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_loop, |
|
n2=n1+1; |
|
,if (n2 != nlimit) { |
|
,: |
|
r> r> 1+ r> 2dup = |
|
IF >r 1- >r cell+ >r |
|
ELSE >r >r @ >r THEN ;) |
|
|
|
acondbranch(a(+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_plus_loop, |
|
/* !! check this thoroughly */ |
|
/* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */ |
|
/* dependent upon two's complement arithmetic */ |
|
Cell olddiff = n1-nlimit; |
|
n2=n1+n; |
|
,if ((olddiff^(olddiff+n))>=0 /* the limit is not crossed */ |
|
|| (olddiff^n)>=0 /* it is a wrap-around effect */) { |
|
,: |
|
r> swap |
|
r> r> 2dup - >r |
|
2 pick r@ + r@ xor 0< 0= |
|
3 pick r> xor 0< 0= or |
|
IF >r + >r @ >r |
|
ELSE >r >r drop cell+ >r THEN ;) |
|
|
|
\+xconds |
|
|
|
acondbranch(a(-loop),u R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_minus_loop, |
|
UCell olddiff = n1-nlimit; |
|
n2=n1-u; |
|
,if (olddiff>u) { |
|
,) |
|
|
|
acondbranch(a(s+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_symmetric_plus_loop, |
|
""The run-time procedure compiled by S+LOOP. It loops until the index |
|
crosses the boundary between limit and limit-sign(n). I.e. a symmetric |
|
version of (+LOOP)."" |
|
/* !! check this thoroughly */ |
|
Cell diff = n1-nlimit; |
|
Cell newdiff = diff+n; |
|
if (n<0) { |
|
diff = -diff; |
|
newdiff = -newdiff; |
|
} |
|
n2=n1+n; |
|
,if (diff>=0 || newdiff<0) { |
|
,) |
|
|
|
a(?do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_question_do |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
if (nstart == nlimit) { |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
: |
|
2dup = |
|
IF r> swap rot >r >r |
|
@ >r |
|
ELSE r> swap rot >r >r |
|
cell+ >r |
|
THEN ; \ --> CORE-EXT |
|
|
|
\+xconds |
|
|
|
a(+do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_plus_do |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
if (nstart >= nlimit) { |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
: |
|
swap 2dup |
|
r> swap >r swap >r |
|
>= |
|
IF |
|
@ |
|
ELSE |
|
cell+ |
|
THEN >r ; |
|
|
|
a(u+do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth aparen_u_plus_do |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
if (ustart >= ulimit) { |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
: |
|
swap 2dup |
|
r> swap >r swap >r |
|
u>= |
|
IF |
|
@ |
|
ELSE |
|
cell+ |
|
THEN >r ; |
|
|
|
a(-do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_minus_do |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
if (nstart <= nlimit) { |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
: |
|
swap 2dup |
|
r> swap >r swap >r |
|
<= |
|
IF |
|
@ |
|
ELSE |
|
cell+ |
|
THEN >r ; |
|
|
|
a(u-do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth aparen_u_minus_do |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
#endif |
|
if (ustart <= ulimit) { |
|
#ifdef NO_IP |
|
JUMP(a_target); |
|
#else |
|
SET_IP((Xt *)a_target); |
|
INST_TAIL; NEXT_P2; |
|
#endif |
|
} |
|
SUPER_CONTINUE; |
|
: |
|
swap 2dup |
|
r> swap >r swap >r |
|
u<= |
|
IF |
|
@ |
|
ELSE |
|
cell+ |
|
THEN >r ; |
|
|
|
\ set-next-code and call2 do not appear in images and can be |
|
\ renumbered arbitrarily |
|
|
|
set-next-code ( #w -- ) gforth set_next_code |
|
#ifdef NO_IP |
|
next_code = (Label)w; |
|
#endif |
|
|
|
call2 ( #a_callee #a_ret_addr -- R:a_ret_addr ) gforth |
|
/* call with explicit return address */ |
|
#ifdef NO_IP |
|
INST_TAIL; |
|
JUMP(a_callee); |
|
#else |
|
assert(0); |
|
#endif |
|
|
|
compile-prim1 ( a_prim -- ) gforth compile_prim1 |
|
""compile prim (incl. immargs) at @var{a_prim}"" |
|
compile_prim1(a_prim); |
|
|
|
finish-code ( -- ) gforth finish_code |
|
""Perform delayed steps in code generation (branch resolution, I-cache |
|
flushing)."" |
|
finish_code(); |
|
|
|
forget-dyncode ( a_code -- f ) gforth-internal forget_dyncode |
|
f = forget_dyncode(a_code); |
|
|
|
decompile-prim ( a_code -- a_prim ) gforth-internal decompile_prim |
|
""a_prim is the code address of the primitive that has been |
|
compile_prim1ed to a_code"" |
|
a_prim = decompile_code(a_code); |
|
|
|
\+ |
|
|
|
include(peeprules.vmg) |
|
|
|
\+ |