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-rw-r--r--libguile/vm-i-system.c496
1 files changed, 325 insertions, 171 deletions
diff --git a/libguile/vm-i-system.c b/libguile/vm-i-system.c
index c1ea1c161..b298c88a6 100644
--- a/libguile/vm-i-system.c
+++ b/libguile/vm-i-system.c
@@ -1,18 +1,19 @@
/* Copyright (C) 2001,2008,2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
@@ -138,13 +139,62 @@ VM_DEFINE_INSTRUCTION (13, make_int16, "make-int16", 2, 0, 1)
NEXT;
}
-VM_DEFINE_INSTRUCTION (14, make_char8, "make-char8", 1, 0, 1)
+VM_DEFINE_INSTRUCTION (14, make_int64, "make-int64", 8, 0, 1)
{
- PUSH (SCM_MAKE_CHAR (FETCH ()));
+ scm_t_uint64 v = 0;
+ v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ PUSH (scm_from_int64 ((scm_t_int64) v));
NEXT;
}
-VM_DEFINE_INSTRUCTION (15, list, "list", 2, -1, 1)
+VM_DEFINE_INSTRUCTION (15, make_uint64, "make-uint64", 8, 0, 1)
+{
+ scm_t_uint64 v = 0;
+ v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ PUSH (scm_from_uint64 (v));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (16, make_char8, "make-char8", 1, 0, 1)
+{
+ scm_t_uint8 v = 0;
+ v = FETCH ();
+
+ PUSH (SCM_MAKE_CHAR (v));
+ /* Don't simplify this to PUSH (SCM_MAKE_CHAR (FETCH ())). The
+ contents of SCM_MAKE_CHAR may be evaluated more than once,
+ resulting in a double fetch. */
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (42, make_char32, "make-char32", 4, 0, 1)
+{
+ scm_t_wchar v = 0;
+ v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ v <<= 8; v += FETCH ();
+ PUSH (SCM_MAKE_CHAR (v));
+ NEXT;
+}
+
+
+
+VM_DEFINE_INSTRUCTION (17, list, "list", 2, -1, 1)
{
unsigned h = FETCH ();
unsigned l = FETCH ();
@@ -153,7 +203,7 @@ VM_DEFINE_INSTRUCTION (15, list, "list", 2, -1, 1)
NEXT;
}
-VM_DEFINE_INSTRUCTION (16, vector, "vector", 2, -1, 1)
+VM_DEFINE_INSTRUCTION (18, vector, "vector", 2, -1, 1)
{
unsigned h = FETCH ();
unsigned l = FETCH ();
@@ -171,19 +221,19 @@ VM_DEFINE_INSTRUCTION (16, vector, "vector", 2, -1, 1)
NEXT;
}
-VM_DEFINE_INSTRUCTION (17, list_mark, "list-mark", 0, 0, 0)
+VM_DEFINE_INSTRUCTION (19, list_mark, "list-mark", 0, 0, 0)
{
POP_LIST_MARK ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (18, cons_mark, "cons-mark", 0, 0, 0)
+VM_DEFINE_INSTRUCTION (20, cons_mark, "cons-mark", 0, 0, 0)
{
POP_CONS_MARK ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (19, vector_mark, "vector-mark", 0, 0, 0)
+VM_DEFINE_INSTRUCTION (21, vector_mark, "vector-mark", 0, 0, 0)
{
POP_LIST_MARK ();
SYNC_REGISTER ();
@@ -191,7 +241,7 @@ VM_DEFINE_INSTRUCTION (19, vector_mark, "vector-mark", 0, 0, 0)
NEXT;
}
-VM_DEFINE_INSTRUCTION (20, list_break, "list-break", 0, 0, 0)
+VM_DEFINE_INSTRUCTION (22, list_break, "list-break", 0, 0, 0)
{
SCM l;
POP (l);
@@ -217,9 +267,11 @@ VM_DEFINE_INSTRUCTION (20, list_break, "list-break", 0, 0, 0)
#define VARIABLE_SET(v,o) SCM_VARIABLE_SET (v, o)
#define VARIABLE_BOUNDP(v) (VARIABLE_REF (v) != SCM_UNDEFINED)
+#define FREE_VARIABLE_REF(i) free_vars[i]
+
/* ref */
-VM_DEFINE_INSTRUCTION (21, object_ref, "object-ref", 1, 0, 1)
+VM_DEFINE_INSTRUCTION (23, object_ref, "object-ref", 1, 0, 1)
{
register unsigned objnum = FETCH ();
CHECK_OBJECT (objnum);
@@ -227,33 +279,41 @@ VM_DEFINE_INSTRUCTION (21, object_ref, "object-ref", 1, 0, 1)
NEXT;
}
-VM_DEFINE_INSTRUCTION (22, local_ref, "local-ref", 1, 0, 1)
+/* FIXME: necessary? elt 255 of the vector could be a vector... */
+VM_DEFINE_INSTRUCTION (24, long_object_ref, "long-object-ref", 2, 0, 1)
+{
+ unsigned int objnum = FETCH ();
+ objnum <<= 8;
+ objnum += FETCH ();
+ CHECK_OBJECT (objnum);
+ PUSH (OBJECT_REF (objnum));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (25, local_ref, "local-ref", 1, 0, 1)
{
PUSH (LOCAL_REF (FETCH ()));
+ ASSERT_BOUND (*sp);
NEXT;
}
-VM_DEFINE_INSTRUCTION (23, external_ref, "external-ref", 1, 0, 1)
+VM_DEFINE_INSTRUCTION (26, long_local_ref, "long-local-ref", 2, 0, 1)
{
- unsigned int i;
- SCM e = external;
- for (i = FETCH (); i; i--)
- {
- CHECK_EXTERNAL(e);
- e = SCM_CDR (e);
- }
- CHECK_EXTERNAL(e);
- PUSH (SCM_CAR (e));
+ unsigned int i = FETCH ();
+ i <<= 8;
+ i += FETCH ();
+ PUSH (LOCAL_REF (i));
+ ASSERT_BOUND (*sp);
NEXT;
}
-VM_DEFINE_INSTRUCTION (24, variable_ref, "variable-ref", 0, 0, 1)
+VM_DEFINE_INSTRUCTION (27, variable_ref, "variable-ref", 0, 0, 1)
{
SCM x = *sp;
if (!VARIABLE_BOUNDP (x))
{
- finish_args = SCM_LIST1 (x);
+ finish_args = scm_list_1 (x);
/* Was: finish_args = SCM_LIST1 (SCM_CAR (x)); */
goto vm_error_unbound;
}
@@ -266,7 +326,7 @@ VM_DEFINE_INSTRUCTION (24, variable_ref, "variable-ref", 0, 0, 1)
NEXT;
}
-VM_DEFINE_INSTRUCTION (25, toplevel_ref, "toplevel-ref", 1, 0, 1)
+VM_DEFINE_INSTRUCTION (28, toplevel_ref, "toplevel-ref", 1, 0, 1)
{
unsigned objnum = FETCH ();
SCM what;
@@ -276,41 +336,37 @@ VM_DEFINE_INSTRUCTION (25, toplevel_ref, "toplevel-ref", 1, 0, 1)
if (!SCM_VARIABLEP (what))
{
SYNC_REGISTER ();
- if (SCM_LIKELY (SCM_SYMBOLP (what)))
- {
- SCM mod = SCM_EOL;
- if (SCM_LIKELY (scm_module_system_booted_p
- && scm_is_true ((mod = scm_program_module (program)))))
- /* might longjmp */
- what = scm_module_lookup (mod, what);
- else
- what = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F);
- }
- else
+ what = resolve_variable (what, scm_program_module (program));
+ if (!VARIABLE_BOUNDP (what))
{
- SCM mod;
- /* compilation of @ or @@
- `what' is a three-element list: (MODNAME SYM INTERFACE?)
- INTERFACE? is #t if we compiled @ or #f if we compiled @@
- */
- mod = scm_resolve_module (SCM_CAR (what));
- if (scm_is_true (SCM_CADDR (what)))
- mod = scm_module_public_interface (mod);
- if (SCM_FALSEP (mod))
- {
- finish_args = SCM_LIST1 (mod);
- goto vm_error_no_such_module;
- }
- /* might longjmp */
- what = scm_module_lookup (mod, SCM_CADR (what));
+ finish_args = scm_list_1 (what);
+ goto vm_error_unbound;
}
-
+ OBJECT_SET (objnum, what);
+ }
+
+ PUSH (VARIABLE_REF (what));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (29, long_toplevel_ref, "long-toplevel-ref", 2, 0, 1)
+{
+ SCM what;
+ unsigned int objnum = FETCH ();
+ objnum <<= 8;
+ objnum += FETCH ();
+ CHECK_OBJECT (objnum);
+ what = OBJECT_REF (objnum);
+
+ if (!SCM_VARIABLEP (what))
+ {
+ SYNC_REGISTER ();
+ what = resolve_variable (what, scm_program_module (program));
if (!VARIABLE_BOUNDP (what))
{
- finish_args = SCM_LIST1 (what);
+ finish_args = scm_list_1 (what);
goto vm_error_unbound;
}
-
OBJECT_SET (objnum, what);
}
@@ -320,36 +376,31 @@ VM_DEFINE_INSTRUCTION (25, toplevel_ref, "toplevel-ref", 1, 0, 1)
/* set */
-VM_DEFINE_INSTRUCTION (26, local_set, "local-set", 1, 1, 0)
+VM_DEFINE_INSTRUCTION (30, local_set, "local-set", 1, 1, 0)
{
LOCAL_SET (FETCH (), *sp);
DROP ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (27, external_set, "external-set", 1, 1, 0)
+VM_DEFINE_INSTRUCTION (31, long_local_set, "long-local-set", 2, 1, 0)
{
- unsigned int i;
- SCM e = external;
- for (i = FETCH (); i; i--)
- {
- CHECK_EXTERNAL(e);
- e = SCM_CDR (e);
- }
- CHECK_EXTERNAL(e);
- SCM_SETCAR (e, *sp);
+ unsigned int i = FETCH ();
+ i <<= 8;
+ i += FETCH ();
+ LOCAL_SET (i, *sp);
DROP ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (28, variable_set, "variable-set", 0, 1, 0)
+VM_DEFINE_INSTRUCTION (32, variable_set, "variable-set", 0, 1, 0)
{
VARIABLE_SET (sp[0], sp[-1]);
DROPN (2);
NEXT;
}
-VM_DEFINE_INSTRUCTION (29, toplevel_set, "toplevel-set", 1, 1, 0)
+VM_DEFINE_INSTRUCTION (33, toplevel_set, "toplevel-set", 1, 1, 0)
{
unsigned objnum = FETCH ();
SCM what;
@@ -359,35 +410,7 @@ VM_DEFINE_INSTRUCTION (29, toplevel_set, "toplevel-set", 1, 1, 0)
if (!SCM_VARIABLEP (what))
{
SYNC_BEFORE_GC ();
- if (SCM_LIKELY (SCM_SYMBOLP (what)))
- {
- SCM mod = SCM_EOL;
- if (SCM_LIKELY (scm_module_system_booted_p
- && scm_is_true ((mod = scm_program_module (program)))))
- /* might longjmp */
- what = scm_module_lookup (mod, what);
- else
- what = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F);
- }
- else
- {
- SCM mod;
- /* compilation of @ or @@
- `what' is a three-element list: (MODNAME SYM INTERFACE?)
- INTERFACE? is #t if we compiled @ or #f if we compiled @@
- */
- mod = scm_resolve_module (SCM_CAR (what));
- if (scm_is_true (SCM_CADDR (what)))
- mod = scm_module_public_interface (mod);
- if (SCM_FALSEP (mod))
- {
- finish_args = SCM_LIST1 (what);
- goto vm_error_no_such_module;
- }
- /* might longjmp */
- what = scm_module_lookup (mod, SCM_CADR (what));
- }
-
+ what = resolve_variable (what, scm_program_module (program));
OBJECT_SET (objnum, what);
}
@@ -396,9 +419,24 @@ VM_DEFINE_INSTRUCTION (29, toplevel_set, "toplevel-set", 1, 1, 0)
NEXT;
}
-VM_DEFINE_INSTRUCTION (30, externals, "externals", 0, 0, 1)
+VM_DEFINE_INSTRUCTION (34, long_toplevel_set, "long-toplevel-set", 2, 1, 0)
{
- PUSH (external);
+ SCM what;
+ unsigned int objnum = FETCH ();
+ objnum <<= 8;
+ objnum += FETCH ();
+ CHECK_OBJECT (objnum);
+ what = OBJECT_REF (objnum);
+
+ if (!SCM_VARIABLEP (what))
+ {
+ SYNC_BEFORE_GC ();
+ what = resolve_variable (what, scm_program_module (program));
+ OBJECT_SET (objnum, what);
+ }
+
+ VARIABLE_SET (what, *sp);
+ DROP ();
NEXT;
}
@@ -407,7 +445,7 @@ VM_DEFINE_INSTRUCTION (30, externals, "externals", 0, 0, 1)
* branch and jump
*/
-/* offset must be a signed short!!! */
+/* offset must be a signed 16 bit int!!! */
#define FETCH_OFFSET(offset) \
{ \
int h = FETCH (); \
@@ -417,49 +455,51 @@ VM_DEFINE_INSTRUCTION (30, externals, "externals", 0, 0, 1)
#define BR(p) \
{ \
- signed short offset; \
+ scm_t_int16 offset; \
FETCH_OFFSET (offset); \
if (p) \
- ip += offset; \
+ ip += ((scm_t_ptrdiff)offset) * 8 - (((unsigned long)ip) % 8); \
NULLSTACK (1); \
DROP (); \
NEXT; \
}
-VM_DEFINE_INSTRUCTION (31, br, "br", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (35, br, "br", 2, 0, 0)
{
- int h = FETCH ();
- int l = FETCH ();
- ip += (signed short) (h << 8) + l;
+ scm_t_int16 offset;
+ FETCH_OFFSET (offset);
+ ip += ((scm_t_ptrdiff)offset) * 8 - (((unsigned long)ip) % 8);
NEXT;
}
-VM_DEFINE_INSTRUCTION (32, br_if, "br-if", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (36, br_if, "br-if", 2, 0, 0)
{
BR (!SCM_FALSEP (*sp));
}
-VM_DEFINE_INSTRUCTION (33, br_if_not, "br-if-not", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (37, br_if_not, "br-if-not", 2, 0, 0)
{
BR (SCM_FALSEP (*sp));
}
-VM_DEFINE_INSTRUCTION (34, br_if_eq, "br-if-eq", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (38, br_if_eq, "br-if-eq", 2, 0, 0)
{
- BR (SCM_EQ_P (sp[0], sp--[1]));
+ sp--; /* underflow? */
+ BR (SCM_EQ_P (sp[0], sp[1]));
}
-VM_DEFINE_INSTRUCTION (35, br_if_not_eq, "br-if-not-eq", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (39, br_if_not_eq, "br-if-not-eq", 2, 0, 0)
{
- BR (!SCM_EQ_P (sp[0], sp--[1]));
+ sp--; /* underflow? */
+ BR (!SCM_EQ_P (sp[0], sp[1]));
}
-VM_DEFINE_INSTRUCTION (36, br_if_null, "br-if-null", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (40, br_if_null, "br-if-null", 2, 0, 0)
{
BR (SCM_NULLP (*sp));
}
-VM_DEFINE_INSTRUCTION (37, br_if_not_null, "br-if-not-null", 2, 0, 0)
+VM_DEFINE_INSTRUCTION (41, br_if_not_null, "br-if-not-null", 2, 0, 0)
{
BR (!SCM_NULLP (*sp));
}
@@ -469,15 +509,7 @@ VM_DEFINE_INSTRUCTION (37, br_if_not_null, "br-if-not-null", 2, 0, 0)
* Subprogram call
*/
-VM_DEFINE_INSTRUCTION (38, make_closure, "make-closure", 0, 1, 1)
-{
- SYNC_BEFORE_GC ();
- SCM_NEWSMOB3 (*sp, scm_tc16_program, SCM_PROGRAM_OBJCODE (*sp),
- SCM_PROGRAM_OBJTABLE (*sp), external);
- NEXT;
-}
-
-VM_DEFINE_INSTRUCTION (39, call, "call", 1, -1, 1)
+VM_DEFINE_INSTRUCTION (43, call, "call", 1, -1, 1)
{
SCM x;
nargs = FETCH ();
@@ -598,7 +630,7 @@ VM_DEFINE_INSTRUCTION (39, call, "call", 1, -1, 1)
goto vm_error_wrong_type_apply;
}
-VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1)
+VM_DEFINE_INSTRUCTION (44, goto_args, "goto/args", 1, -1, 1)
{
register SCM x;
nargs = FETCH ();
@@ -625,12 +657,6 @@ VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1)
sp -= 2;
NULLSTACK (bp->nargs + 1);
- /* Freshen the externals */
- external = SCM_PROGRAM_EXTERNALS (x);
- for (i = 0; i < bp->nexts; i++)
- CONS (external, SCM_UNDEFINED, external);
- SCM_FRAME_DATA_ADDRESS (fp)[0] = external;
-
/* Init locals to valid SCM values */
for (i = 0; i < bp->nlocs; i++)
LOCAL_SET (i + bp->nargs, SCM_UNDEFINED);
@@ -679,7 +705,7 @@ VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1)
sure we have space for the locals now */
data = SCM_FRAME_DATA_ADDRESS (fp);
ip = bp->base;
- stack_base = data + 3;
+ stack_base = data + 2;
sp = stack_base;
CHECK_OVERFLOW ();
@@ -694,17 +720,9 @@ VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1)
data[-i] = SCM_UNDEFINED;
/* Set frame data */
- data[3] = (SCM)ra;
- data[2] = (SCM)mvra;
- data[1] = (SCM)dl;
-
- /* Postpone initializing external vars, because if the CONS causes a GC,
- we want the stack marker to see the data array formatted as expected. */
- data[0] = SCM_UNDEFINED;
- external = SCM_PROGRAM_EXTERNALS (fp[-1]);
- for (i = 0; i < bp->nexts; i++)
- CONS (external, SCM_UNDEFINED, external);
- data[0] = external;
+ data[2] = (SCM)ra;
+ data[1] = (SCM)mvra;
+ data[0] = (SCM)dl;
ENTER_HOOK ();
APPLY_HOOK ();
@@ -792,7 +810,7 @@ VM_DEFINE_INSTRUCTION (40, goto_args, "goto/args", 1, -1, 1)
goto vm_error_wrong_type_apply;
}
-VM_DEFINE_INSTRUCTION (41, goto_nargs, "goto/nargs", 0, 0, 1)
+VM_DEFINE_INSTRUCTION (45, goto_nargs, "goto/nargs", 0, 0, 1)
{
SCM x;
POP (x);
@@ -801,7 +819,7 @@ VM_DEFINE_INSTRUCTION (41, goto_nargs, "goto/nargs", 0, 0, 1)
goto vm_goto_args;
}
-VM_DEFINE_INSTRUCTION (42, call_nargs, "call/nargs", 0, 0, 1)
+VM_DEFINE_INSTRUCTION (46, call_nargs, "call/nargs", 0, 0, 1)
{
SCM x;
POP (x);
@@ -810,13 +828,15 @@ VM_DEFINE_INSTRUCTION (42, call_nargs, "call/nargs", 0, 0, 1)
goto vm_call;
}
-VM_DEFINE_INSTRUCTION (43, mv_call, "mv-call", 3, -1, 1)
+VM_DEFINE_INSTRUCTION (47, mv_call, "mv-call", 3, -1, 1)
{
SCM x;
- signed short offset;
+ scm_t_int16 offset;
+ scm_t_uint8 *mvra;
nargs = FETCH ();
FETCH_OFFSET (offset);
+ mvra = ip + ((scm_t_ptrdiff)offset) * 8 - ((unsigned long)ip) % 8;
x = sp[-nargs];
@@ -829,7 +849,7 @@ VM_DEFINE_INSTRUCTION (43, mv_call, "mv-call", 3, -1, 1)
CACHE_PROGRAM ();
INIT_ARGS ();
NEW_FRAME ();
- SCM_FRAME_DATA_ADDRESS (fp)[2] = (SCM)(SCM_FRAME_RETURN_ADDRESS (fp) + offset);
+ SCM_FRAME_DATA_ADDRESS (fp)[1] = (SCM)mvra;
ENTER_HOOK ();
APPLY_HOOK ();
NEXT;
@@ -854,7 +874,7 @@ VM_DEFINE_INSTRUCTION (43, mv_call, "mv-call", 3, -1, 1)
len = scm_length (values);
PUSH_LIST (values, SCM_NULLP);
PUSH (len);
- ip += offset;
+ ip = mvra;
}
NEXT;
}
@@ -871,7 +891,7 @@ VM_DEFINE_INSTRUCTION (43, mv_call, "mv-call", 3, -1, 1)
goto vm_error_wrong_type_apply;
}
-VM_DEFINE_INSTRUCTION (44, apply, "apply", 1, -1, 1)
+VM_DEFINE_INSTRUCTION (48, apply, "apply", 1, -1, 1)
{
int len;
SCM ls;
@@ -890,7 +910,7 @@ VM_DEFINE_INSTRUCTION (44, apply, "apply", 1, -1, 1)
goto vm_call;
}
-VM_DEFINE_INSTRUCTION (45, goto_apply, "goto/apply", 1, -1, 1)
+VM_DEFINE_INSTRUCTION (49, goto_apply, "goto/apply", 1, -1, 1)
{
int len;
SCM ls;
@@ -909,7 +929,7 @@ VM_DEFINE_INSTRUCTION (45, goto_apply, "goto/apply", 1, -1, 1)
goto vm_goto_args;
}
-VM_DEFINE_INSTRUCTION (46, call_cc, "call/cc", 0, 1, 1)
+VM_DEFINE_INSTRUCTION (50, call_cc, "call/cc", 0, 1, 1)
{
int first;
SCM proc, cont;
@@ -943,7 +963,7 @@ VM_DEFINE_INSTRUCTION (46, call_cc, "call/cc", 0, 1, 1)
}
}
-VM_DEFINE_INSTRUCTION (47, goto_cc, "goto/cc", 0, 1, 1)
+VM_DEFINE_INSTRUCTION (51, goto_cc, "goto/cc", 0, 1, 1)
{
int first;
SCM proc, cont;
@@ -975,7 +995,7 @@ VM_DEFINE_INSTRUCTION (47, goto_cc, "goto/cc", 0, 1, 1)
}
}
-VM_DEFINE_INSTRUCTION (48, return, "return", 0, 1, 1)
+VM_DEFINE_INSTRUCTION (52, return, "return", 0, 1, 1)
{
vm_return:
EXIT_HOOK ();
@@ -988,12 +1008,12 @@ VM_DEFINE_INSTRUCTION (48, return, "return", 0, 1, 1)
POP (ret);
ASSERT (sp == stack_base);
- ASSERT (stack_base == data + 3);
+ ASSERT (stack_base == data + 2);
/* Restore registers */
sp = SCM_FRAME_LOWER_ADDRESS (fp);
- ip = SCM_FRAME_BYTE_CAST (data[3]);
- fp = SCM_FRAME_STACK_CAST (data[1]);
+ ip = SCM_FRAME_BYTE_CAST (data[2]);
+ fp = SCM_FRAME_STACK_CAST (data[0]);
{
#ifdef VM_ENABLE_STACK_NULLING
int nullcount = stack_base - sp;
@@ -1009,12 +1029,11 @@ VM_DEFINE_INSTRUCTION (48, return, "return", 0, 1, 1)
/* Restore the last program */
program = SCM_FRAME_PROGRAM (fp);
CACHE_PROGRAM ();
- CACHE_EXTERNAL ();
CHECK_IP ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (49, return_values, "return/values", 1, -1, -1)
+VM_DEFINE_INSTRUCTION (53, return_values, "return/values", 1, -1, -1)
{
/* nvalues declared at top level, because for some reason gcc seems to think
that perhaps it might be used without declaration. Fooey to that, I say. */
@@ -1026,16 +1045,16 @@ VM_DEFINE_INSTRUCTION (49, return_values, "return/values", 1, -1, -1)
RETURN_HOOK ();
data = SCM_FRAME_DATA_ADDRESS (fp);
- ASSERT (stack_base == data + 3);
+ ASSERT (stack_base == data + 2);
- /* data[2] is the mv return address */
- if (nvalues != 1 && data[2])
+ /* data[1] is the mv return address */
+ if (nvalues != 1 && data[1])
{
int i;
/* Restore registers */
sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1;
- ip = SCM_FRAME_BYTE_CAST (data[2]); /* multiple value ra */
- fp = SCM_FRAME_STACK_CAST (data[1]);
+ ip = SCM_FRAME_BYTE_CAST (data[1]); /* multiple value ra */
+ fp = SCM_FRAME_STACK_CAST (data[0]);
/* Push return values, and the number of values */
for (i = 0; i < nvalues; i++)
@@ -1054,8 +1073,8 @@ VM_DEFINE_INSTRUCTION (49, return_values, "return/values", 1, -1, -1)
continuation.) */
/* Restore registers */
sp = SCM_FRAME_LOWER_ADDRESS (fp) - 1;
- ip = SCM_FRAME_BYTE_CAST (data[3]); /* single value ra */
- fp = SCM_FRAME_STACK_CAST (data[1]);
+ ip = SCM_FRAME_BYTE_CAST (data[2]); /* single value ra */
+ fp = SCM_FRAME_STACK_CAST (data[0]);
/* Push first value */
*++sp = stack_base[1];
@@ -1070,12 +1089,11 @@ VM_DEFINE_INSTRUCTION (49, return_values, "return/values", 1, -1, -1)
/* Restore the last program */
program = SCM_FRAME_PROGRAM (fp);
CACHE_PROGRAM ();
- CACHE_EXTERNAL ();
CHECK_IP ();
NEXT;
}
-VM_DEFINE_INSTRUCTION (50, return_values_star, "return/values*", 1, -1, -1)
+VM_DEFINE_INSTRUCTION (54, return_values_star, "return/values*", 1, -1, -1)
{
SCM l;
@@ -1098,7 +1116,7 @@ VM_DEFINE_INSTRUCTION (50, return_values_star, "return/values*", 1, -1, -1)
goto vm_return_values;
}
-VM_DEFINE_INSTRUCTION (51, truncate_values, "truncate-values", 2, -1, -1)
+VM_DEFINE_INSTRUCTION (55, truncate_values, "truncate-values", 2, -1, -1)
{
SCM x;
int nbinds, rest;
@@ -1121,6 +1139,142 @@ VM_DEFINE_INSTRUCTION (51, truncate_values, "truncate-values", 2, -1, -1)
NEXT;
}
+VM_DEFINE_INSTRUCTION (56, box, "box", 1, 1, 0)
+{
+ SCM val;
+ POP (val);
+ SYNC_BEFORE_GC ();
+ LOCAL_SET (FETCH (), scm_cell (scm_tc7_variable, SCM_UNPACK (val)));
+ NEXT;
+}
+
+/* for letrec:
+ (let ((a *undef*) (b *undef*) ...)
+ (set! a (lambda () (b ...)))
+ ...)
+ */
+VM_DEFINE_INSTRUCTION (57, empty_box, "empty-box", 1, 0, 0)
+{
+ SYNC_BEFORE_GC ();
+ LOCAL_SET (FETCH (),
+ scm_cell (scm_tc7_variable, SCM_UNPACK (SCM_UNDEFINED)));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (58, local_boxed_ref, "local-boxed-ref", 1, 0, 1)
+{
+ SCM v = LOCAL_REF (FETCH ());
+ ASSERT_BOUND_VARIABLE (v);
+ PUSH (VARIABLE_REF (v));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (59, local_boxed_set, "local-boxed-set", 1, 1, 0)
+{
+ SCM v, val;
+ v = LOCAL_REF (FETCH ());
+ POP (val);
+ ASSERT_VARIABLE (v);
+ VARIABLE_SET (v, val);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (60, free_ref, "free-ref", 1, 0, 1)
+{
+ scm_t_uint8 idx = FETCH ();
+
+ CHECK_FREE_VARIABLE (idx);
+ PUSH (FREE_VARIABLE_REF (idx));
+ NEXT;
+}
+
+/* no free-set -- if a var is assigned, it should be in a box */
+
+VM_DEFINE_INSTRUCTION (61, free_boxed_ref, "free-boxed-ref", 1, 0, 1)
+{
+ SCM v;
+ scm_t_uint8 idx = FETCH ();
+ CHECK_FREE_VARIABLE (idx);
+ v = FREE_VARIABLE_REF (idx);
+ ASSERT_BOUND_VARIABLE (v);
+ PUSH (VARIABLE_REF (v));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (62, free_boxed_set, "free-boxed-set", 1, 1, 0)
+{
+ SCM v, val;
+ scm_t_uint8 idx = FETCH ();
+ POP (val);
+ CHECK_FREE_VARIABLE (idx);
+ v = FREE_VARIABLE_REF (idx);
+ ASSERT_BOUND_VARIABLE (v);
+ VARIABLE_SET (v, val);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (63, make_closure, "make-closure", 0, 2, 1)
+{
+ SCM vect;
+ POP (vect);
+ SYNC_BEFORE_GC ();
+ /* fixme underflow */
+ SCM_NEWSMOB3 (*sp, scm_tc16_program, SCM_PROGRAM_OBJCODE (*sp),
+ SCM_PROGRAM_OBJTABLE (*sp), vect);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (64, make_variable, "make-variable", 0, 0, 1)
+{
+ SYNC_BEFORE_GC ();
+ /* fixme underflow */
+ PUSH (scm_cell (scm_tc7_variable, SCM_UNPACK (SCM_UNDEFINED)));
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (65, fix_closure, "fix-closure", 2, 0, 1)
+{
+ SCM x, vect;
+ unsigned int i = FETCH ();
+ i <<= 8;
+ i += FETCH ();
+ POP (vect);
+ /* FIXME CHECK_LOCAL (i) */
+ x = LOCAL_REF (i);
+ /* FIXME ASSERT_PROGRAM (x); */
+ SCM_SET_CELL_WORD_3 (x, vect);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (66, define, "define", 0, 0, 2)
+{
+ SCM sym, val;
+ POP (sym);
+ POP (val);
+ SYNC_REGISTER ();
+ VARIABLE_SET (scm_sym2var (sym, scm_current_module_lookup_closure (),
+ SCM_BOOL_T),
+ val);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (67, make_keyword, "make-keyword", 0, 1, 1)
+{
+ CHECK_UNDERFLOW ();
+ SYNC_REGISTER ();
+ *sp = scm_symbol_to_keyword (*sp);
+ NEXT;
+}
+
+VM_DEFINE_INSTRUCTION (68, make_symbol, "make-symbol", 0, 1, 1)
+{
+ CHECK_UNDERFLOW ();
+ SYNC_REGISTER ();
+ *sp = scm_string_to_symbol (*sp);
+ NEXT;
+}
+
+
/*
(defun renumber-ops ()
"start from top of buffer and renumber 'VM_DEFINE_FOO (\n' sequences"