version 1.94, 2002/06/02 21:19:09
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version 1.100, 2002/10/04 19:17:05
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Line 104
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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 182 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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
$5 |
$5 |
Line 192 $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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
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Line 219 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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
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Line 314 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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
: |
: |
Line 330 SUPER_CONTINUE;
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Line 331 SUPER_CONTINUE;
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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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
: |
: |
Line 346 SUPER_CONTINUE;
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Line 347 SUPER_CONTINUE;
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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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
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: |
Line 362 SUPER_CONTINUE;
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Line 363 SUPER_CONTINUE;
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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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
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: |
Line 378 SUPER_CONTINUE;
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Line 379 SUPER_CONTINUE;
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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; |
} |
} |
SUPER_CONTINUE; |
SUPER_CONTINUE; |
: |
: |
Line 1707 r = d;
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Line 1708 r = d;
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#endif |
#endif |
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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); |
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#else |
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d = r; |
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#endif |
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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 2166 Variable UP
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Line 2163 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 2426 a_addr = (Cell *)(up+u);
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Line 2423 a_addr = (Cell *)(up+u);
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compile-prim ( xt1 -- xt2 ) new compile_prim |
compile-prim ( xt1 -- xt2 ) new compile_prim |
xt2 = (Xt)compile_prim((Label)xt1); |
xt2 = (Xt)compile_prim((Label)xt1); |
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lit@ / lit_fetch = lit @ |
\ lit@ / lit_fetch = lit @ |
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lit@ ( #a_addr -- w ) new lit_fetch |
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w = *a_addr; |
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lit-perform ( #a_addr -- ) new lit_perform |
lit-perform ( #a_addr -- ) new lit_perform |
ip=IP; |
ip=IP; |
SUPER_END; |
SUPER_END; |
EXEC(*(Xt *)a_addr); |
EXEC(*(Xt *)a_addr); |
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lit+ / lit_plus = lit + |
\ lit+ / lit_plus = lit + |
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lit+ ( n1 #n2 -- n ) new lit_plus |
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n=n1+n2; |
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does-exec ( #a_cfa -- R:nest a_pfa ) new does_exec |
does-exec ( #a_cfa -- R:nest a_pfa ) new does_exec |
a_pfa = PFA(a_cfa); |
a_pfa = PFA(a_cfa); |
Line 2448 IF_spTOS(spTOS = sp[0]);
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Line 2451 IF_spTOS(spTOS = sp[0]);
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#endif |
#endif |
SET_IP(DOES_CODE1(a_cfa)); |
SET_IP(DOES_CODE1(a_cfa)); |
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abranch-lp+!# ( #a_target #nlocals -- ) gforth abranch_lp_plus_store_number |
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/* this will probably not be used */ |
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lp += nlocals; |
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SET_IP((Xt *)a_target); |
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\+ |
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abranch ( #a_target -- ) gforth |
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SET_IP((Xt *)a_target); |
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: |
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r> @ >r ; |
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\ acondbranch(forthname,stackeffect,restline,code,forthcode) |
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\ this is non-syntactical: code must open a brace that is closed by the macro |
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define(acondbranch, |
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$1 ( `#'a_target $2 ) $3 |
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$4 SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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$5 |
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\+glocals |
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$1-lp+!`#' ( `#'a_target `#'nlocals $2 ) $3_lp_plus_store_number |
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$4 lp += nlocals; |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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\+ |
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) |
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acondbranch(a?branch,f --,f83 aquestion_branch, |
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if (f==0) { |
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,: |
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0= dup \ !f !f \ !! still uses relative addresses |
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r> dup @ \ !f !f IP branchoffset |
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rot and + \ !f IP|IP+branchoffset |
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swap 0= cell and + \ IP'' |
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>r ;) |
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\ we don't need an lp_plus_store version of the ?dup-stuff, because it |
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\ is only used in if's (yet) |
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\+xconds |
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a?dup-?branch ( #a_target f -- f ) new aquestion_dupe_question_branch |
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""The run-time procedure compiled by @code{?DUP-IF}."" |
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if (f==0) { |
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sp++; |
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IF_spTOS(spTOS = sp[0]); |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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a?dup-0=-?branch ( #a_target f -- ) new aquestion_dupe_zero_equals_question_branch |
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""The run-time procedure compiled by @code{?DUP-0=-IF}."" |
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/* the approach taken here of declaring the word as having the stack |
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effect ( f -- ) and correcting for it in the branch-taken case costs a |
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few cycles in that case, but is easy to convert to a CONDBRANCH |
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invocation */ |
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if (f!=0) { |
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sp--; |
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SET_IP((Xt *)a_target); |
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NEXT; |
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} |
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SUPER_CONTINUE; |
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\+ |
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\f[THEN] |
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\fhas? skiploopprims 0= [IF] |
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acondbranch(a(next),R:n1 -- R:n2,cmFORTH aparen_next, |
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n2=n1-1; |
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if (n1) { |
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,: |
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r> r> dup 1- >r |
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IF @ >r ELSE cell+ >r THEN ;) |
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acondbranch(a(loop),R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_loop, |
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n2=n1+1; |
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if (n2 != nlimit) { |
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,: |
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r> r> 1+ r> 2dup = |
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IF >r 1- >r cell+ >r |
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ELSE >r >r @ >r THEN ;) |
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acondbranch(a(+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_plus_loop, |
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/* !! check this thoroughly */ |
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/* sign bit manipulation and test: (x^y)<0 is equivalent to (x<0) != (y<0) */ |
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/* dependent upon two's complement arithmetic */ |
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Cell olddiff = n1-nlimit; |
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n2=n1+n; |
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if ((olddiff^(olddiff+n))>=0 /* the limit is not crossed */ |
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|| (olddiff^n)>=0 /* it is a wrap-around effect */) { |
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,: |
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r> swap |
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r> r> 2dup - >r |
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2 pick r@ + r@ xor 0< 0= |
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3 pick r> xor 0< 0= or |
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IF >r + >r @ >r |
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ELSE >r >r drop cell+ >r THEN ;) |
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\+xconds |
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acondbranch(a(-loop),u R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_minus_loop, |
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UCell olddiff = n1-nlimit; |
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n2=n1-u; |
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if (olddiff>u) { |
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,) |
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acondbranch(a(s+loop),n R:nlimit R:n1 -- R:nlimit R:n2,gforth aparen_symmetric_plus_loop, |
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""The run-time procedure compiled by S+LOOP. It loops until the index |
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crosses the boundary between limit and limit-sign(n). I.e. a symmetric |
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version of (+LOOP)."" |
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/* !! check this thoroughly */ |
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Cell diff = n1-nlimit; |
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Cell newdiff = diff+n; |
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if (n<0) { |
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diff = -diff; |
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newdiff = -newdiff; |
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} |
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n2=n1+n; |
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if (diff>=0 || newdiff<0) { |
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,) |
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a(?do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_question_do |
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if (nstart == nlimit) { |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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: |
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2dup = |
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IF r> swap rot >r >r |
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@ >r |
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ELSE r> swap rot >r >r |
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cell+ >r |
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THEN ; \ --> CORE-EXT |
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\+xconds |
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a(+do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_plus_do |
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if (nstart >= nlimit) { |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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: |
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swap 2dup |
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r> swap >r swap >r |
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>= |
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IF |
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@ |
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ELSE |
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cell+ |
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THEN >r ; |
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a(u+do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth aparen_u_plus_do |
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if (ustart >= ulimit) { |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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: |
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swap 2dup |
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r> swap >r swap >r |
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u>= |
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IF |
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@ |
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ELSE |
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cell+ |
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THEN >r ; |
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a(-do) ( #a_target nlimit nstart -- R:nlimit R:nstart ) gforth aparen_minus_do |
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if (nstart <= nlimit) { |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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: |
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swap 2dup |
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r> swap >r swap >r |
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<= |
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IF |
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@ |
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ELSE |
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cell+ |
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THEN >r ; |
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a(u-do) ( #a_target ulimit ustart -- R:ulimit R:ustart ) gforth aparen_u_minus_do |
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if (ustart <= ulimit) { |
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SET_IP((Xt *)a_target); |
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INST_TAIL; |
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} |
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SUPER_CONTINUE; |
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: |
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swap 2dup |
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r> swap >r swap >r |
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u<= |
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IF |
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@ |
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ELSE |
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cell+ |
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THEN >r ; |
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\+ |
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include(peeprules.vmg) |
include(peeprules.vmg) |
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\+ |
\+ |