version 1.64, 2000/11/10 10:04:20
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version 1.67, 2000/12/13 10:15:26
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Line 74
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Line 74
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\ xt.* XT |
\ xt.* XT |
\ wid.* WID |
\ wid.* WID |
\ f83name.* F83Name * |
\ f83name.* F83Name * |
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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" WID" single data-stack type-prefix wid |
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\E s" struct F83Name *" single data-stack type-prefix f83name |
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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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\ |
\ |
\ |
\ |
\ |
\ |
Line 134 EXEC(*(Xt *)a_addr);
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Line 159 EXEC(*(Xt *)a_addr);
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branch-lp+!# ( -- ) gforth branch_lp_plus_store_number |
branch-lp+!# ( -- ) gforth branch_lp_plus_store_number |
/* this will probably not be used */ |
/* this will probably not be used */ |
branch_adjust_lp: |
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lp += (Cell)(IP[1]); |
lp += (Cell)(IP[1]); |
goto branch; |
goto branch; |
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Line 151 SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST
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Line 175 SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST
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define(condbranch, |
define(condbranch, |
$1 $2 |
$1 $2 |
$3 SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
$3 SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
NEXT; |
TAIL; |
} |
} |
else |
else |
INC_IP(1); |
INC_IP(1); |
Line 160 $4
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Line 184 $4
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\+glocals |
\+glocals |
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$1-lp+!# $2_lp_plus_store_number |
$1-lp+!# $2_lp_plus_store_number |
$3 goto branch_adjust_lp; |
$3 lp += (Cell)(IP[1]); |
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SET_IP((Xt *)(((Cell)IP)+(Cell)NEXT_INST)); |
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TAIL; |
} |
} |
else |
else |
INC_IP(2); |
INC_IP(2); |
Line 170 else
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Line 196 else
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condbranch(?branch,( f -- ) f83 question_branch, |
condbranch(?branch,( f -- ) f83 question_branch, |
if (f==0) { |
if (f==0) { |
IF_spTOS(spTOS = 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 212 else
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Line 237 else
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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_spTOS(spTOS = 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 270 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_spTOS(spTOS = 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_spTOS(spTOS = 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) ( 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_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
goto branch; |
goto branch; |
Line 327 else {
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Line 326 else {
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\+xconds |
\+xconds |
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(+do) ( nlimit nstart -- ) gforth paren_plus_do |
(+do) ( 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_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
goto branch; |
goto branch; |
Line 347 else {
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Line 344 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) ( 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_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
goto branch; |
goto branch; |
Line 367 else {
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Line 362 else {
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cell+ |
cell+ |
THEN >r ; |
THEN >r ; |
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(-do) ( nlimit nstart -- ) gforth paren_minus_do |
(-do) ( 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_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
goto branch; |
goto branch; |
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) ( ulimit ustart -- R:ulimit R:ustart ) gforth paren_u_minus_do |
*--rp = ulimit; |
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*--rp = ustart; |
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if (ustart <= ulimit) { |
if (ustart <= ulimit) { |
IF_spTOS(spTOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
goto branch; |
goto branch; |
Line 412 else {
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Line 403 else {
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\ 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 |
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j ( -- n ) core |
j ( R:n R:d1 -- n R:n R:d1 ) core |
n = rp[2]; |
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: |
: |
\ 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 973 fp = f_addr;
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Line 959 fp = f_addr;
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\+ |
\+ |
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;s ( -- ) gforth semis |
;s ( R:w -- ) gforth semis |
""The primitive compiled by @code{EXIT}."" |
""The primitive compiled by @code{EXIT}."" |
SET_IP((Xt *)(*rp++)); |
SET_IP((Xt *)w); |
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>r ( w -- ) core to_r |
>r ( w -- R:w ) core to_r |
""@code{( R: -- w )}"" |
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*--rp = w; |
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: |
: |
(>r) ; |
(>r) ; |
: (>r) rp@ cell+ @ rp@ ! rp@ cell+ ! ; |
: (>r) rp@ cell+ @ rp@ ! rp@ cell+ ! ; |
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r> ( -- w ) core r_from |
r> ( R:w -- w ) core r_from |
""@code{( R: w -- )}"" |
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w = *rp++; |
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: |
: |
rp@ cell+ @ rp@ @ rp@ cell+ ! (rdrop) rp@ ! ; |
rp@ cell+ @ rp@ @ rp@ cell+ ! (rdrop) rp@ ! ; |
Create (rdrop) ' ;s A, |
Create (rdrop) ' ;s A, |
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rdrop ( -- ) gforth |
rdrop ( R:w -- ) gforth |
""@code{( R: w -- )}"" |
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rp++; |
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: |
: |
r> r> drop >r ; |
r> r> drop >r ; |
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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 )}"" |
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*--rp = w1; |
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*--rp = w2; |
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: |
: |
swap r> swap >r swap >r >r ; |
swap r> swap >r swap >r >r ; |
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2r> ( -- w1 w2 ) core-ext two_r_from |
2r> ( R:w1 R:w2 -- w1 w2 ) core-ext two_r_from |
""@code{( R: w1 w2 -- )}"" |
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w2 = *rp++; |
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w1 = *rp++; |
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: |
: |
r> r> swap r> swap >r swap ; |
r> r> swap r> swap >r swap ; |
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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 )}"" |
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w2 = rp[0]; |
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w1 = rp[1]; |
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: |
: |
i' j ; |
i' j ; |
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2rdrop ( -- ) gforth two_r_drop |
2rdrop ( R:w1 R:w2 -- ) gforth two_r_drop |
""@code{( R: w1 w2 -- )}"" |
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rp+=2; |
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: |
: |
r> r> drop r> drop >r ; |
r> r> drop r> drop >r ; |
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