/* Execution of byte code produced by bytecomp.el.
- Copyright (C) 1985, 1986, 1987, 1988, 1993, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+ Copyright (C) 1985-1988, 1993, 2000-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <setjmp.h>
#include "lisp.h"
-#include "buffer.h"
#include "character.h"
+#include "buffer.h"
#include "syntax.h"
#include "window.h"
/* #define BYTE_CODE_SAFE */
/* #define BYTE_CODE_METER */
+/* If BYTE_CODE_THREADED is defined, then the interpreter will be
+ indirect threaded, using GCC's computed goto extension. This code,
+ as currently implemented, is incompatible with BYTE_CODE_SAFE and
+ BYTE_CODE_METER. */
+#if defined (__GNUC__) && !defined (BYTE_CODE_SAFE) && !defined (BYTE_CODE_METER)
+#define BYTE_CODE_THREADED
+#endif
+
\f
#ifdef BYTE_CODE_METER
-Lisp_Object Vbyte_code_meter, Qbyte_code_meter;
-int byte_metering_on;
-
-#define METER_2(code1, code2) \
- XFASTINT (XVECTOR (XVECTOR (Vbyte_code_meter)->contents[(code1)]) \
- ->contents[(code2)])
-
-#define METER_1(code) METER_2 (0, (code))
+Lisp_Object Qbyte_code_meter;
+#define METER_2(code1, code2) AREF (AREF (Vbyte_code_meter, code1), code2)
+#define METER_1(code) METER_2 (0, code)
#define METER_CODE(last_code, this_code) \
{ \
if (byte_metering_on) \
{ \
- if (METER_1 (this_code) < MOST_POSITIVE_FIXNUM) \
- METER_1 (this_code)++; \
+ if (XFASTINT (METER_1 (this_code)) < MOST_POSITIVE_FIXNUM) \
+ XSETFASTINT (METER_1 (this_code), \
+ XFASTINT (METER_1 (this_code)) + 1); \
if (last_code \
- && METER_2 (last_code, this_code) < MOST_POSITIVE_FIXNUM) \
- METER_2 (last_code, this_code)++; \
+ && (XFASTINT (METER_2 (last_code, this_code)) \
+ < MOST_POSITIVE_FIXNUM)) \
+ XSETFASTINT (METER_2 (last_code, this_code), \
+ XFASTINT (METER_2 (last_code, this_code)) + 1); \
} \
}
-#else /* no BYTE_CODE_METER */
-
-#define METER_CODE(last_code, this_code)
-
-#endif /* no BYTE_CODE_METER */
+#endif /* BYTE_CODE_METER */
\f
Lisp_Object Qbytecode;
/* Byte codes: */
-#define Bvarref 010
-#define Bvarset 020
-#define Bvarbind 030
-#define Bcall 040
-#define Bunbind 050
-
-#define Bnth 070
-#define Bsymbolp 071
-#define Bconsp 072
-#define Bstringp 073
-#define Blistp 074
-#define Beq 075
-#define Bmemq 076
-#define Bnot 077
-#define Bcar 0100
-#define Bcdr 0101
-#define Bcons 0102
-#define Blist1 0103
-#define Blist2 0104
-#define Blist3 0105
-#define Blist4 0106
-#define Blength 0107
-#define Baref 0110
-#define Baset 0111
-#define Bsymbol_value 0112
-#define Bsymbol_function 0113
-#define Bset 0114
-#define Bfset 0115
-#define Bget 0116
-#define Bsubstring 0117
-#define Bconcat2 0120
-#define Bconcat3 0121
-#define Bconcat4 0122
-#define Bsub1 0123
-#define Badd1 0124
-#define Beqlsign 0125
-#define Bgtr 0126
-#define Blss 0127
-#define Bleq 0130
-#define Bgeq 0131
-#define Bdiff 0132
-#define Bnegate 0133
-#define Bplus 0134
-#define Bmax 0135
-#define Bmin 0136
-#define Bmult 0137
-
-#define Bpoint 0140
-/* Was Bmark in v17. */
-#define Bsave_current_buffer 0141
-#define Bgoto_char 0142
-#define Binsert 0143
-#define Bpoint_max 0144
-#define Bpoint_min 0145
-#define Bchar_after 0146
-#define Bfollowing_char 0147
-#define Bpreceding_char 0150
-#define Bcurrent_column 0151
-#define Bindent_to 0152
-#define Bscan_buffer 0153 /* No longer generated as of v18 */
-#define Beolp 0154
-#define Beobp 0155
-#define Bbolp 0156
-#define Bbobp 0157
-#define Bcurrent_buffer 0160
-#define Bset_buffer 0161
-#define Bsave_current_buffer_1 0162 /* Replacing Bsave_current_buffer. */
-#define Bread_char 0162 /* No longer generated as of v19 */
-#define Bset_mark 0163 /* this loser is no longer generated as of v18 */
-#define Binteractive_p 0164 /* Needed since interactive-p takes unevalled args */
-
-#define Bforward_char 0165
-#define Bforward_word 0166
-#define Bskip_chars_forward 0167
-#define Bskip_chars_backward 0170
-#define Bforward_line 0171
-#define Bchar_syntax 0172
-#define Bbuffer_substring 0173
-#define Bdelete_region 0174
-#define Bnarrow_to_region 0175
-#define Bwiden 0176
-#define Bend_of_line 0177
-
-#define Bconstant2 0201
-#define Bgoto 0202
-#define Bgotoifnil 0203
-#define Bgotoifnonnil 0204
-#define Bgotoifnilelsepop 0205
-#define Bgotoifnonnilelsepop 0206
-#define Breturn 0207
-#define Bdiscard 0210
-#define Bdup 0211
-
-#define Bsave_excursion 0212
-#define Bsave_window_excursion 0213
-#define Bsave_restriction 0214
-#define Bcatch 0215
-
-#define Bunwind_protect 0216
-#define Bcondition_case 0217
-#define Btemp_output_buffer_setup 0220
-#define Btemp_output_buffer_show 0221
-
-#define Bunbind_all 0222
-
-#define Bset_marker 0223
-#define Bmatch_beginning 0224
-#define Bmatch_end 0225
-#define Bupcase 0226
-#define Bdowncase 0227
-
-#define Bstringeqlsign 0230
-#define Bstringlss 0231
-#define Bequal 0232
-#define Bnthcdr 0233
-#define Belt 0234
-#define Bmember 0235
-#define Bassq 0236
-#define Bnreverse 0237
-#define Bsetcar 0240
-#define Bsetcdr 0241
-#define Bcar_safe 0242
-#define Bcdr_safe 0243
-#define Bnconc 0244
-#define Bquo 0245
-#define Brem 0246
-#define Bnumberp 0247
-#define Bintegerp 0250
-
-#define BRgoto 0252
-#define BRgotoifnil 0253
-#define BRgotoifnonnil 0254
-#define BRgotoifnilelsepop 0255
-#define BRgotoifnonnilelsepop 0256
-
-#define BlistN 0257
-#define BconcatN 0260
-#define BinsertN 0261
-
-#define Bconstant 0300
-#define CONSTANTLIM 0100
+#define BYTE_CODES \
+DEFINE (Bstack_ref, 0) /* Actually, Bstack_ref+0 is not implemented: use dup. */ \
+DEFINE (Bstack_ref1, 1) \
+DEFINE (Bstack_ref2, 2) \
+DEFINE (Bstack_ref3, 3) \
+DEFINE (Bstack_ref4, 4) \
+DEFINE (Bstack_ref5, 5) \
+DEFINE (Bstack_ref6, 6) \
+DEFINE (Bstack_ref7, 7) \
+DEFINE (Bvarref, 010) \
+DEFINE (Bvarref1, 011) \
+DEFINE (Bvarref2, 012) \
+DEFINE (Bvarref3, 013) \
+DEFINE (Bvarref4, 014) \
+DEFINE (Bvarref5, 015) \
+DEFINE (Bvarref6, 016) \
+DEFINE (Bvarref7, 017) \
+DEFINE (Bvarset, 020) \
+DEFINE (Bvarset1, 021) \
+DEFINE (Bvarset2, 022) \
+DEFINE (Bvarset3, 023) \
+DEFINE (Bvarset4, 024) \
+DEFINE (Bvarset5, 025) \
+DEFINE (Bvarset6, 026) \
+DEFINE (Bvarset7, 027) \
+DEFINE (Bvarbind, 030) \
+DEFINE (Bvarbind1, 031) \
+DEFINE (Bvarbind2, 032) \
+DEFINE (Bvarbind3, 033) \
+DEFINE (Bvarbind4, 034) \
+DEFINE (Bvarbind5, 035) \
+DEFINE (Bvarbind6, 036) \
+DEFINE (Bvarbind7, 037) \
+DEFINE (Bcall, 040) \
+DEFINE (Bcall1, 041) \
+DEFINE (Bcall2, 042) \
+DEFINE (Bcall3, 043) \
+DEFINE (Bcall4, 044) \
+DEFINE (Bcall5, 045) \
+DEFINE (Bcall6, 046) \
+DEFINE (Bcall7, 047) \
+DEFINE (Bunbind, 050) \
+DEFINE (Bunbind1, 051) \
+DEFINE (Bunbind2, 052) \
+DEFINE (Bunbind3, 053) \
+DEFINE (Bunbind4, 054) \
+DEFINE (Bunbind5, 055) \
+DEFINE (Bunbind6, 056) \
+DEFINE (Bunbind7, 057) \
+ \
+DEFINE (Bnth, 070) \
+DEFINE (Bsymbolp, 071) \
+DEFINE (Bconsp, 072) \
+DEFINE (Bstringp, 073) \
+DEFINE (Blistp, 074) \
+DEFINE (Beq, 075) \
+DEFINE (Bmemq, 076) \
+DEFINE (Bnot, 077) \
+DEFINE (Bcar, 0100) \
+DEFINE (Bcdr, 0101) \
+DEFINE (Bcons, 0102) \
+DEFINE (Blist1, 0103) \
+DEFINE (Blist2, 0104) \
+DEFINE (Blist3, 0105) \
+DEFINE (Blist4, 0106) \
+DEFINE (Blength, 0107) \
+DEFINE (Baref, 0110) \
+DEFINE (Baset, 0111) \
+DEFINE (Bsymbol_value, 0112) \
+DEFINE (Bsymbol_function, 0113) \
+DEFINE (Bset, 0114) \
+DEFINE (Bfset, 0115) \
+DEFINE (Bget, 0116) \
+DEFINE (Bsubstring, 0117) \
+DEFINE (Bconcat2, 0120) \
+DEFINE (Bconcat3, 0121) \
+DEFINE (Bconcat4, 0122) \
+DEFINE (Bsub1, 0123) \
+DEFINE (Badd1, 0124) \
+DEFINE (Beqlsign, 0125) \
+DEFINE (Bgtr, 0126) \
+DEFINE (Blss, 0127) \
+DEFINE (Bleq, 0130) \
+DEFINE (Bgeq, 0131) \
+DEFINE (Bdiff, 0132) \
+DEFINE (Bnegate, 0133) \
+DEFINE (Bplus, 0134) \
+DEFINE (Bmax, 0135) \
+DEFINE (Bmin, 0136) \
+DEFINE (Bmult, 0137) \
+ \
+DEFINE (Bpoint, 0140) \
+/* Was Bmark in v17. */ \
+DEFINE (Bsave_current_buffer, 0141) /* Obsolete. */ \
+DEFINE (Bgoto_char, 0142) \
+DEFINE (Binsert, 0143) \
+DEFINE (Bpoint_max, 0144) \
+DEFINE (Bpoint_min, 0145) \
+DEFINE (Bchar_after, 0146) \
+DEFINE (Bfollowing_char, 0147) \
+DEFINE (Bpreceding_char, 0150) \
+DEFINE (Bcurrent_column, 0151) \
+DEFINE (Bindent_to, 0152) \
+DEFINE (Beolp, 0154) \
+DEFINE (Beobp, 0155) \
+DEFINE (Bbolp, 0156) \
+DEFINE (Bbobp, 0157) \
+DEFINE (Bcurrent_buffer, 0160) \
+DEFINE (Bset_buffer, 0161) \
+DEFINE (Bsave_current_buffer_1, 0162) /* Replacing Bsave_current_buffer. */ \
+DEFINE (Binteractive_p, 0164) /* Obsolete since Emacs-24.1. */ \
+ \
+DEFINE (Bforward_char, 0165) \
+DEFINE (Bforward_word, 0166) \
+DEFINE (Bskip_chars_forward, 0167) \
+DEFINE (Bskip_chars_backward, 0170) \
+DEFINE (Bforward_line, 0171) \
+DEFINE (Bchar_syntax, 0172) \
+DEFINE (Bbuffer_substring, 0173) \
+DEFINE (Bdelete_region, 0174) \
+DEFINE (Bnarrow_to_region, 0175) \
+DEFINE (Bwiden, 0176) \
+DEFINE (Bend_of_line, 0177) \
+ \
+DEFINE (Bconstant2, 0201) \
+DEFINE (Bgoto, 0202) \
+DEFINE (Bgotoifnil, 0203) \
+DEFINE (Bgotoifnonnil, 0204) \
+DEFINE (Bgotoifnilelsepop, 0205) \
+DEFINE (Bgotoifnonnilelsepop, 0206) \
+DEFINE (Breturn, 0207) \
+DEFINE (Bdiscard, 0210) \
+DEFINE (Bdup, 0211) \
+ \
+DEFINE (Bsave_excursion, 0212) \
+DEFINE (Bsave_window_excursion, 0213) /* Obsolete since Emacs-24.1. */ \
+DEFINE (Bsave_restriction, 0214) \
+DEFINE (Bcatch, 0215) \
+ \
+DEFINE (Bunwind_protect, 0216) \
+DEFINE (Bcondition_case, 0217) \
+DEFINE (Btemp_output_buffer_setup, 0220) /* Obsolete since Emacs-24.1. */ \
+DEFINE (Btemp_output_buffer_show, 0221) /* Obsolete since Emacs-24.1. */ \
+ \
+DEFINE (Bunbind_all, 0222) /* Obsolete. Never used. */ \
+ \
+DEFINE (Bset_marker, 0223) \
+DEFINE (Bmatch_beginning, 0224) \
+DEFINE (Bmatch_end, 0225) \
+DEFINE (Bupcase, 0226) \
+DEFINE (Bdowncase, 0227) \
+ \
+DEFINE (Bstringeqlsign, 0230) \
+DEFINE (Bstringlss, 0231) \
+DEFINE (Bequal, 0232) \
+DEFINE (Bnthcdr, 0233) \
+DEFINE (Belt, 0234) \
+DEFINE (Bmember, 0235) \
+DEFINE (Bassq, 0236) \
+DEFINE (Bnreverse, 0237) \
+DEFINE (Bsetcar, 0240) \
+DEFINE (Bsetcdr, 0241) \
+DEFINE (Bcar_safe, 0242) \
+DEFINE (Bcdr_safe, 0243) \
+DEFINE (Bnconc, 0244) \
+DEFINE (Bquo, 0245) \
+DEFINE (Brem, 0246) \
+DEFINE (Bnumberp, 0247) \
+DEFINE (Bintegerp, 0250) \
+ \
+DEFINE (BRgoto, 0252) \
+DEFINE (BRgotoifnil, 0253) \
+DEFINE (BRgotoifnonnil, 0254) \
+DEFINE (BRgotoifnilelsepop, 0255) \
+DEFINE (BRgotoifnonnilelsepop, 0256) \
+ \
+DEFINE (BlistN, 0257) \
+DEFINE (BconcatN, 0260) \
+DEFINE (BinsertN, 0261) \
+ \
+/* Bstack_ref is code 0. */ \
+DEFINE (Bstack_set, 0262) \
+DEFINE (Bstack_set2, 0263) \
+DEFINE (BdiscardN, 0266) \
+ \
+DEFINE (Bconstant, 0300)
+
+enum byte_code_op
+{
+#define DEFINE(name, value) name = value,
+ BYTE_CODES
+#undef DEFINE
+#ifdef BYTE_CODE_SAFE
+ Bscan_buffer = 0153, /* No longer generated as of v18. */
+ Bset_mark = 0163 /* this loser is no longer generated as of v18 */
+#endif
+};
+
+/* Whether to maintain a `top' and `bottom' field in the stack frame. */
+#define BYTE_MAINTAIN_TOP (BYTE_CODE_SAFE || BYTE_MARK_STACK)
\f
/* Structure describing a value stack used during byte-code execution
in Fbyte_code. */
/* Top and bottom of stack. The bottom points to an area of memory
allocated with alloca in Fbyte_code. */
+#if BYTE_MAINTAIN_TOP
Lisp_Object *top, *bottom;
+#endif
/* The string containing the byte-code, and its current address.
Storing this here protects it from GC because mark_byte_stack
/* A list of currently active byte-code execution value stacks.
Fbyte_code adds an entry to the head of this list before it starts
processing byte-code, and it removed the entry again when it is
- done. Signalling an error truncates the list analoguous to
+ done. Signaling an error truncates the list analogous to
gcprolist. */
struct byte_stack *byte_stack_list;
\f
/* Mark objects on byte_stack_list. Called during GC. */
+#if BYTE_MARK_STACK
void
-mark_byte_stack ()
+mark_byte_stack (void)
{
struct byte_stack *stack;
Lisp_Object *obj;
mark_object (stack->constants);
}
}
-
+#endif
/* Unmark objects in the stacks on byte_stack_list. Relocate program
counters. Called when GC has completed. */
void
-unmark_byte_stack ()
+unmark_byte_stack (void)
{
struct byte_stack *stack;
{
if (stack->byte_string_start != SDATA (stack->byte_string))
{
- int offset = stack->pc - stack->byte_string_start;
+ ptrdiff_t offset = stack->pc - stack->byte_string_start;
stack->byte_string_start = SDATA (stack->byte_string);
stack->pc = stack->byte_string_start + offset;
}
/* Actions that must be performed before and after calling a function
that might GC. */
+#if !BYTE_MAINTAIN_TOP
+#define BEFORE_POTENTIAL_GC() ((void)0)
+#define AFTER_POTENTIAL_GC() ((void)0)
+#else
#define BEFORE_POTENTIAL_GC() stack.top = top
#define AFTER_POTENTIAL_GC() stack.top = NULL
+#endif
/* Garbage collect if we have consed enough since the last time.
We do this at every branch, to avoid loops that never GC. */
-#define MAYBE_GC() \
- if (consing_since_gc > gc_cons_threshold \
- && consing_since_gc > gc_relative_threshold) \
- { \
- BEFORE_POTENTIAL_GC (); \
- Fgarbage_collect (); \
- AFTER_POTENTIAL_GC (); \
- } \
- else
+#define MAYBE_GC() \
+ do { \
+ BEFORE_POTENTIAL_GC (); \
+ maybe_gc (); \
+ AFTER_POTENTIAL_GC (); \
+ } while (0)
/* Check for jumping out of range. */
the second, VECTOR, a vector of constants;
the third, MAXDEPTH, the maximum stack depth used in this function.
If the third argument is incorrect, Emacs may crash. */)
- (bytestr, vector, maxdepth)
- Lisp_Object bytestr, vector, maxdepth;
+ (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth)
+{
+ return exec_byte_code (bytestr, vector, maxdepth, Qnil, 0, NULL);
+}
+
+/* Execute the byte-code in BYTESTR. VECTOR is the constant vector, and
+ MAXDEPTH is the maximum stack depth used (if MAXDEPTH is incorrect,
+ emacs may crash!). If ARGS_TEMPLATE is non-nil, it should be a lisp
+ argument list (including &rest, &optional, etc.), and ARGS, of size
+ NARGS, should be a vector of the actual arguments. The arguments in
+ ARGS are pushed on the stack according to ARGS_TEMPLATE before
+ executing BYTESTR. */
+
+Lisp_Object
+exec_byte_code (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth,
+ Lisp_Object args_template, ptrdiff_t nargs, Lisp_Object *args)
{
- int count = SPECPDL_INDEX ();
+ ptrdiff_t count = SPECPDL_INDEX ();
#ifdef BYTE_CODE_METER
int this_op = 0;
int prev_op;
/* Lisp_Object v1, v2; */
Lisp_Object *vectorp;
#ifdef BYTE_CODE_SAFE
- int const_length;
+ ptrdiff_t const_length;
Lisp_Object *stacke;
+ ptrdiff_t bytestr_length;
#endif
- int bytestr_length;
struct byte_stack stack;
Lisp_Object *top;
Lisp_Object result;
CHECK_STRING (bytestr);
CHECK_VECTOR (vector);
- CHECK_NUMBER (maxdepth);
+ CHECK_NATNUM (maxdepth);
#ifdef BYTE_CODE_SAFE
- const_length = XVECTOR_SIZE (vector);
+ const_length = ASIZE (vector);
#endif
+
if (STRING_MULTIBYTE (bytestr))
/* BYTESTR must have been produced by Emacs 20.2 or the earlier
because they produced a raw 8-bit string for byte-code and now
convert them back to the originally intended unibyte form. */
bytestr = Fstring_as_unibyte (bytestr);
+#ifdef BYTE_CODE_SAFE
bytestr_length = SBYTES (bytestr);
+#endif
vectorp = XVECTOR (vector)->contents;
stack.byte_string = bytestr;
stack.pc = stack.byte_string_start = SDATA (bytestr);
stack.constants = vector;
- stack.bottom = (Lisp_Object *) alloca (XFASTINT (maxdepth)
- * sizeof (Lisp_Object));
- top = stack.bottom - 1;
+ if (MAX_ALLOCA / word_size <= XFASTINT (maxdepth))
+ memory_full (SIZE_MAX);
+ top = alloca ((XFASTINT (maxdepth) + 1) * sizeof *top);
+#if BYTE_MAINTAIN_TOP
+ stack.bottom = top + 1;
stack.top = NULL;
+#endif
stack.next = byte_stack_list;
byte_stack_list = &stack;
stacke = stack.bottom - 1 + XFASTINT (maxdepth);
#endif
+ if (INTEGERP (args_template))
+ {
+ ptrdiff_t at = XINT (args_template);
+ int rest = at & 128;
+ int mandatory = at & 127;
+ ptrdiff_t nonrest = at >> 8;
+ eassert (mandatory <= nonrest);
+ if (nargs <= nonrest)
+ {
+ ptrdiff_t i;
+ for (i = 0 ; i < nargs; i++, args++)
+ PUSH (*args);
+ if (nargs < mandatory)
+ /* Too few arguments. */
+ Fsignal (Qwrong_number_of_arguments,
+ Fcons (Fcons (make_number (mandatory),
+ rest ? Qand_rest : make_number (nonrest)),
+ Fcons (make_number (nargs), Qnil)));
+ else
+ {
+ for (; i < nonrest; i++)
+ PUSH (Qnil);
+ if (rest)
+ PUSH (Qnil);
+ }
+ }
+ else if (rest)
+ {
+ ptrdiff_t i;
+ for (i = 0 ; i < nonrest; i++, args++)
+ PUSH (*args);
+ PUSH (Flist (nargs - nonrest, args));
+ }
+ else
+ /* Too many arguments. */
+ Fsignal (Qwrong_number_of_arguments,
+ Fcons (Fcons (make_number (mandatory),
+ make_number (nonrest)),
+ Fcons (make_number (nargs), Qnil)));
+ }
+ else if (! NILP (args_template))
+ /* We should push some arguments on the stack. */
+ {
+ error ("Unknown args template!");
+ }
+
while (1)
{
#ifdef BYTE_CODE_SAFE
this_op = op = FETCH;
METER_CODE (prev_op, op);
#else
+#ifndef BYTE_CODE_THREADED
op = FETCH;
+#endif
+#endif
+
+ /* The interpreter can be compiled one of two ways: as an
+ ordinary switch-based interpreter, or as a threaded
+ interpreter. The threaded interpreter relies on GCC's
+ computed goto extension, so it is not available everywhere.
+ Threading provides a performance boost. These macros are how
+ we allow the code to be compiled both ways. */
+#ifdef BYTE_CODE_THREADED
+ /* The CASE macro introduces an instruction's body. It is
+ either a label or a case label. */
+#define CASE(OP) insn_ ## OP
+ /* NEXT is invoked at the end of an instruction to go to the
+ next instruction. It is either a computed goto, or a
+ plain break. */
+#define NEXT goto *(targets[op = FETCH])
+ /* FIRST is like NEXT, but is only used at the start of the
+ interpreter body. In the switch-based interpreter it is the
+ switch, so the threaded definition must include a semicolon. */
+#define FIRST NEXT;
+ /* Most cases are labeled with the CASE macro, above.
+ CASE_DEFAULT is one exception; it is used if the interpreter
+ being built requires a default case. The threaded
+ interpreter does not, because the dispatch table is
+ completely filled. */
+#define CASE_DEFAULT
+ /* This introduces an instruction that is known to call abort. */
+#define CASE_ABORT CASE (Bstack_ref): CASE (default)
+#else
+ /* See above for the meaning of the various defines. */
+#define CASE(OP) case OP
+#define NEXT break
+#define FIRST switch (op)
+#define CASE_DEFAULT case 255: default:
+#define CASE_ABORT case 0
+#endif
+
+#ifdef BYTE_CODE_THREADED
+
+ /* A convenience define that saves us a lot of typing and makes
+ the table clearer. */
+#define LABEL(OP) [OP] = &&insn_ ## OP
+
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Woverride-init"
#endif
- switch (op)
+ /* This is the dispatch table for the threaded interpreter. */
+ static const void *const targets[256] =
{
- case Bvarref + 7:
+ [0 ... (Bconstant - 1)] = &&insn_default,
+ [Bconstant ... 255] = &&insn_Bconstant,
+
+#define DEFINE(name, value) LABEL (name) ,
+ BYTE_CODES
+#undef DEFINE
+ };
+
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic pop
+#endif
+
+#endif
+
+
+ FIRST
+ {
+ CASE (Bvarref7):
op = FETCH2;
goto varref;
- case Bvarref:
- case Bvarref + 1:
- case Bvarref + 2:
- case Bvarref + 3:
- case Bvarref + 4:
- case Bvarref + 5:
+ CASE (Bvarref):
+ CASE (Bvarref1):
+ CASE (Bvarref2):
+ CASE (Bvarref3):
+ CASE (Bvarref4):
+ CASE (Bvarref5):
op = op - Bvarref;
goto varref;
/* This seems to be the most frequently executed byte-code
among the Bvarref's, so avoid a goto here. */
- case Bvarref+6:
+ CASE (Bvarref6):
op = FETCH;
varref:
{
v1 = vectorp[op];
if (SYMBOLP (v1))
{
- v2 = SYMBOL_VALUE (v1);
- if (MISCP (v2) || EQ (v2, Qunbound))
+ if (XSYMBOL (v1)->redirect != SYMBOL_PLAINVAL
+ || (v2 = SYMBOL_VAL (XSYMBOL (v1)),
+ EQ (v2, Qunbound)))
{
BEFORE_POTENTIAL_GC ();
v2 = Fsymbol_value (v1);
AFTER_POTENTIAL_GC ();
}
PUSH (v2);
- break;
+ NEXT;
}
- case Bgotoifnil:
+ CASE (Bgotoifnil):
{
Lisp_Object v1;
MAYBE_GC ();
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
- break;
+ NEXT;
}
- case Bcar:
+ CASE (Bcar):
{
Lisp_Object v1;
v1 = TOP;
- TOP = CAR (v1);
- break;
+ if (CONSP (v1))
+ TOP = XCAR (v1);
+ else if (NILP (v1))
+ TOP = Qnil;
+ else
+ {
+ BEFORE_POTENTIAL_GC ();
+ wrong_type_argument (Qlistp, v1);
+ AFTER_POTENTIAL_GC ();
+ }
+ NEXT;
}
- case Beq:
+ CASE (Beq):
{
Lisp_Object v1;
v1 = POP;
TOP = EQ (v1, TOP) ? Qt : Qnil;
- break;
+ NEXT;
}
- case Bmemq:
+ CASE (Bmemq):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fmemq (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bcdr:
+ CASE (Bcdr):
{
Lisp_Object v1;
v1 = TOP;
- TOP = CDR (v1);
- break;
+ if (CONSP (v1))
+ TOP = XCDR (v1);
+ else if (NILP (v1))
+ TOP = Qnil;
+ else
+ {
+ BEFORE_POTENTIAL_GC ();
+ wrong_type_argument (Qlistp, v1);
+ AFTER_POTENTIAL_GC ();
+ }
+ NEXT;
}
- case Bvarset:
- case Bvarset+1:
- case Bvarset+2:
- case Bvarset+3:
- case Bvarset+4:
- case Bvarset+5:
+ CASE (Bvarset):
+ CASE (Bvarset1):
+ CASE (Bvarset2):
+ CASE (Bvarset3):
+ CASE (Bvarset4):
+ CASE (Bvarset5):
op -= Bvarset;
goto varset;
- case Bvarset+7:
+ CASE (Bvarset7):
op = FETCH2;
goto varset;
- case Bvarset+6:
+ CASE (Bvarset6):
op = FETCH;
varset:
{
/* Inline the most common case. */
if (SYMBOLP (sym)
&& !EQ (val, Qunbound)
- && !XSYMBOL (sym)->indirect_variable
- && !SYMBOL_CONSTANT_P (sym)
- && !MISCP (XSYMBOL (sym)->value))
- XSYMBOL (sym)->value = val;
+ && !XSYMBOL (sym)->redirect
+ && !SYMBOL_CONSTANT_P (sym))
+ SET_SYMBOL_VAL (XSYMBOL (sym), val);
else
{
BEFORE_POTENTIAL_GC ();
- set_internal (sym, val, current_buffer, 0);
+ set_internal (sym, val, Qnil, 0);
AFTER_POTENTIAL_GC ();
}
}
(void) POP;
- break;
+ NEXT;
- case Bdup:
+ CASE (Bdup):
{
Lisp_Object v1;
v1 = TOP;
PUSH (v1);
- break;
+ NEXT;
}
/* ------------------ */
- case Bvarbind+6:
+ CASE (Bvarbind6):
op = FETCH;
goto varbind;
- case Bvarbind+7:
+ CASE (Bvarbind7):
op = FETCH2;
goto varbind;
- case Bvarbind:
- case Bvarbind+1:
- case Bvarbind+2:
- case Bvarbind+3:
- case Bvarbind+4:
- case Bvarbind+5:
+ CASE (Bvarbind):
+ CASE (Bvarbind1):
+ CASE (Bvarbind2):
+ CASE (Bvarbind3):
+ CASE (Bvarbind4):
+ CASE (Bvarbind5):
op -= Bvarbind;
varbind:
/* Specbind can signal and thus GC. */
BEFORE_POTENTIAL_GC ();
specbind (vectorp[op], POP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bcall+6:
+ CASE (Bcall6):
op = FETCH;
goto docall;
- case Bcall+7:
+ CASE (Bcall7):
op = FETCH2;
goto docall;
- case Bcall:
- case Bcall+1:
- case Bcall+2:
- case Bcall+3:
- case Bcall+4:
- case Bcall+5:
+ CASE (Bcall):
+ CASE (Bcall1):
+ CASE (Bcall2):
+ CASE (Bcall3):
+ CASE (Bcall4):
+ CASE (Bcall5):
op -= Bcall;
docall:
{
#endif
TOP = Ffuncall (op + 1, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bunbind+6:
+ CASE (Bunbind6):
op = FETCH;
goto dounbind;
- case Bunbind+7:
+ CASE (Bunbind7):
op = FETCH2;
goto dounbind;
- case Bunbind:
- case Bunbind+1:
- case Bunbind+2:
- case Bunbind+3:
- case Bunbind+4:
- case Bunbind+5:
+ CASE (Bunbind):
+ CASE (Bunbind1):
+ CASE (Bunbind2):
+ CASE (Bunbind3):
+ CASE (Bunbind4):
+ CASE (Bunbind5):
op -= Bunbind;
dounbind:
BEFORE_POTENTIAL_GC ();
unbind_to (SPECPDL_INDEX () - op, Qnil);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bunbind_all:
+ CASE (Bunbind_all): /* Obsolete. Never used. */
/* To unbind back to the beginning of this frame. Not used yet,
but will be needed for tail-recursion elimination. */
BEFORE_POTENTIAL_GC ();
unbind_to (count, Qnil);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bgoto:
+ CASE (Bgoto):
MAYBE_GC ();
BYTE_CODE_QUIT;
op = FETCH2; /* pc = FETCH2 loses since FETCH2 contains pc++ */
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
- break;
+ NEXT;
- case Bgotoifnonnil:
+ CASE (Bgotoifnonnil):
{
Lisp_Object v1;
MAYBE_GC ();
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
- break;
+ NEXT;
}
- case Bgotoifnilelsepop:
+ CASE (Bgotoifnilelsepop):
MAYBE_GC ();
op = FETCH2;
if (NILP (TOP))
stack.pc = stack.byte_string_start + op;
}
else DISCARD (1);
- break;
+ NEXT;
- case Bgotoifnonnilelsepop:
+ CASE (Bgotoifnonnilelsepop):
MAYBE_GC ();
op = FETCH2;
if (!NILP (TOP))
stack.pc = stack.byte_string_start + op;
}
else DISCARD (1);
- break;
+ NEXT;
- case BRgoto:
+ CASE (BRgoto):
MAYBE_GC ();
BYTE_CODE_QUIT;
stack.pc += (int) *stack.pc - 127;
- break;
+ NEXT;
- case BRgotoifnil:
+ CASE (BRgotoifnil):
{
Lisp_Object v1;
MAYBE_GC ();
stack.pc += (int) *stack.pc - 128;
}
stack.pc++;
- break;
+ NEXT;
}
- case BRgotoifnonnil:
+ CASE (BRgotoifnonnil):
{
Lisp_Object v1;
MAYBE_GC ();
stack.pc += (int) *stack.pc - 128;
}
stack.pc++;
- break;
+ NEXT;
}
- case BRgotoifnilelsepop:
+ CASE (BRgotoifnilelsepop):
MAYBE_GC ();
op = *stack.pc++;
if (NILP (TOP))
stack.pc += op - 128;
}
else DISCARD (1);
- break;
+ NEXT;
- case BRgotoifnonnilelsepop:
+ CASE (BRgotoifnonnilelsepop):
MAYBE_GC ();
op = *stack.pc++;
if (!NILP (TOP))
stack.pc += op - 128;
}
else DISCARD (1);
- break;
+ NEXT;
- case Breturn:
+ CASE (Breturn):
result = POP;
goto exit;
- case Bdiscard:
+ CASE (Bdiscard):
DISCARD (1);
- break;
+ NEXT;
- case Bconstant2:
+ CASE (Bconstant2):
PUSH (vectorp[FETCH2]);
- break;
+ NEXT;
- case Bsave_excursion:
+ CASE (Bsave_excursion):
record_unwind_protect (save_excursion_restore,
save_excursion_save ());
- break;
+ NEXT;
- case Bsave_current_buffer:
- case Bsave_current_buffer_1:
+ CASE (Bsave_current_buffer): /* Obsolete since ??. */
+ CASE (Bsave_current_buffer_1):
record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ());
- break;
+ NEXT;
- case Bsave_window_excursion:
- BEFORE_POTENTIAL_GC ();
- TOP = Fsave_window_excursion (TOP);
- AFTER_POTENTIAL_GC ();
- break;
+ CASE (Bsave_window_excursion): /* Obsolete since 24.1. */
+ {
+ register ptrdiff_t count1 = SPECPDL_INDEX ();
+ record_unwind_protect (Fset_window_configuration,
+ Fcurrent_window_configuration (Qnil));
+ BEFORE_POTENTIAL_GC ();
+ TOP = Fprogn (TOP);
+ unbind_to (count1, TOP);
+ AFTER_POTENTIAL_GC ();
+ NEXT;
+ }
- case Bsave_restriction:
+ CASE (Bsave_restriction):
record_unwind_protect (save_restriction_restore,
save_restriction_save ());
- break;
+ NEXT;
- case Bcatch:
+ CASE (Bcatch): /* FIXME: ill-suited for lexbind. */
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
- TOP = internal_catch (TOP, Feval, v1);
+ TOP = internal_catch (TOP, eval_sub, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bunwind_protect:
+ CASE (Bunwind_protect): /* FIXME: avoid closure for lexbind. */
record_unwind_protect (Fprogn, POP);
- break;
+ NEXT;
- case Bcondition_case:
+ CASE (Bcondition_case): /* FIXME: ill-suited for lexbind. */
{
Lisp_Object handlers, body;
handlers = POP;
BEFORE_POTENTIAL_GC ();
TOP = internal_lisp_condition_case (TOP, body, handlers);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Btemp_output_buffer_setup:
+ CASE (Btemp_output_buffer_setup): /* Obsolete since 24.1. */
BEFORE_POTENTIAL_GC ();
CHECK_STRING (TOP);
- temp_output_buffer_setup (SDATA (TOP));
+ temp_output_buffer_setup (SSDATA (TOP));
AFTER_POTENTIAL_GC ();
TOP = Vstandard_output;
- break;
+ NEXT;
- case Btemp_output_buffer_show:
+ CASE (Btemp_output_buffer_show): /* Obsolete since 24.1. */
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
/* pop binding of standard-output */
unbind_to (SPECPDL_INDEX () - 1, Qnil);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bnth:
+ CASE (Bnth):
{
Lisp_Object v1, v2;
+ EMACS_INT n;
BEFORE_POTENTIAL_GC ();
v1 = POP;
v2 = TOP;
CHECK_NUMBER (v2);
- AFTER_POTENTIAL_GC ();
- op = XINT (v2);
+ n = XINT (v2);
immediate_quit = 1;
- while (--op >= 0 && CONSP (v1))
+ while (--n >= 0 && CONSP (v1))
v1 = XCDR (v1);
immediate_quit = 0;
TOP = CAR (v1);
- break;
+ AFTER_POTENTIAL_GC ();
+ NEXT;
}
- case Bsymbolp:
+ CASE (Bsymbolp):
TOP = SYMBOLP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
- case Bconsp:
+ CASE (Bconsp):
TOP = CONSP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
- case Bstringp:
+ CASE (Bstringp):
TOP = STRINGP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
- case Blistp:
+ CASE (Blistp):
TOP = CONSP (TOP) || NILP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
- case Bnot:
+ CASE (Bnot):
TOP = NILP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
- case Bcons:
+ CASE (Bcons):
{
Lisp_Object v1;
v1 = POP;
TOP = Fcons (TOP, v1);
- break;
+ NEXT;
}
- case Blist1:
+ CASE (Blist1):
TOP = Fcons (TOP, Qnil);
- break;
+ NEXT;
- case Blist2:
+ CASE (Blist2):
{
Lisp_Object v1;
v1 = POP;
TOP = Fcons (TOP, Fcons (v1, Qnil));
- break;
+ NEXT;
}
- case Blist3:
+ CASE (Blist3):
DISCARD (2);
TOP = Flist (3, &TOP);
- break;
+ NEXT;
- case Blist4:
+ CASE (Blist4):
DISCARD (3);
TOP = Flist (4, &TOP);
- break;
+ NEXT;
- case BlistN:
+ CASE (BlistN):
op = FETCH;
DISCARD (op - 1);
TOP = Flist (op, &TOP);
- break;
+ NEXT;
- case Blength:
+ CASE (Blength):
BEFORE_POTENTIAL_GC ();
TOP = Flength (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Baref:
+ CASE (Baref):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Faref (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Baset:
+ CASE (Baset):
{
Lisp_Object v1, v2;
BEFORE_POTENTIAL_GC ();
v2 = POP; v1 = POP;
TOP = Faset (TOP, v1, v2);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bsymbol_value:
+ CASE (Bsymbol_value):
BEFORE_POTENTIAL_GC ();
TOP = Fsymbol_value (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bsymbol_function:
+ CASE (Bsymbol_function):
BEFORE_POTENTIAL_GC ();
TOP = Fsymbol_function (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bset:
+ CASE (Bset):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fset (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bfset:
+ CASE (Bfset):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Ffset (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bget:
+ CASE (Bget):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fget (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bsubstring:
+ CASE (Bsubstring):
{
Lisp_Object v1, v2;
BEFORE_POTENTIAL_GC ();
v2 = POP; v1 = POP;
TOP = Fsubstring (TOP, v1, v2);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bconcat2:
+ CASE (Bconcat2):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fconcat (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bconcat3:
+ CASE (Bconcat3):
BEFORE_POTENTIAL_GC ();
DISCARD (2);
TOP = Fconcat (3, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bconcat4:
+ CASE (Bconcat4):
BEFORE_POTENTIAL_GC ();
DISCARD (3);
TOP = Fconcat (4, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case BconcatN:
+ CASE (BconcatN):
op = FETCH;
BEFORE_POTENTIAL_GC ();
DISCARD (op - 1);
TOP = Fconcat (op, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bsub1:
+ CASE (Bsub1):
{
Lisp_Object v1;
v1 = TOP;
TOP = Fsub1 (v1);
AFTER_POTENTIAL_GC ();
}
- break;
+ NEXT;
}
- case Badd1:
+ CASE (Badd1):
{
Lisp_Object v1;
v1 = TOP;
TOP = Fadd1 (v1);
AFTER_POTENTIAL_GC ();
}
- break;
+ NEXT;
}
- case Beqlsign:
+ CASE (Beqlsign):
{
Lisp_Object v1, v2;
BEFORE_POTENTIAL_GC ();
}
else
TOP = (XINT (v1) == XINT (v2) ? Qt : Qnil);
- break;
+ NEXT;
}
- case Bgtr:
+ CASE (Bgtr):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fgtr (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Blss:
+ CASE (Blss):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Flss (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bleq:
+ CASE (Bleq):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fleq (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bgeq:
+ CASE (Bgeq):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fgeq (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bdiff:
+ CASE (Bdiff):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fminus (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bnegate:
+ CASE (Bnegate):
{
Lisp_Object v1;
v1 = TOP;
TOP = Fminus (1, &TOP);
AFTER_POTENTIAL_GC ();
}
- break;
+ NEXT;
}
- case Bplus:
+ CASE (Bplus):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fplus (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bmax:
+ CASE (Bmax):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fmax (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bmin:
+ CASE (Bmin):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fmin (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bmult:
+ CASE (Bmult):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Ftimes (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bquo:
+ CASE (Bquo):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fquo (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Brem:
+ CASE (Brem):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Frem (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bpoint:
+ CASE (Bpoint):
{
Lisp_Object v1;
XSETFASTINT (v1, PT);
PUSH (v1);
- break;
+ NEXT;
}
- case Bgoto_char:
+ CASE (Bgoto_char):
BEFORE_POTENTIAL_GC ();
TOP = Fgoto_char (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Binsert:
+ CASE (Binsert):
BEFORE_POTENTIAL_GC ();
TOP = Finsert (1, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case BinsertN:
+ CASE (BinsertN):
op = FETCH;
BEFORE_POTENTIAL_GC ();
DISCARD (op - 1);
TOP = Finsert (op, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bpoint_max:
+ CASE (Bpoint_max):
{
Lisp_Object v1;
XSETFASTINT (v1, ZV);
PUSH (v1);
- break;
+ NEXT;
}
- case Bpoint_min:
+ CASE (Bpoint_min):
{
Lisp_Object v1;
XSETFASTINT (v1, BEGV);
PUSH (v1);
- break;
+ NEXT;
}
- case Bchar_after:
+ CASE (Bchar_after):
BEFORE_POTENTIAL_GC ();
TOP = Fchar_after (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bfollowing_char:
+ CASE (Bfollowing_char):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = Ffollowing_char ();
AFTER_POTENTIAL_GC ();
PUSH (v1);
- break;
+ NEXT;
}
- case Bpreceding_char:
+ CASE (Bpreceding_char):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = Fprevious_char ();
AFTER_POTENTIAL_GC ();
PUSH (v1);
- break;
+ NEXT;
}
- case Bcurrent_column:
+ CASE (Bcurrent_column):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
- XSETFASTINT (v1, (int) current_column ()); /* iftc */
+ XSETFASTINT (v1, current_column ());
AFTER_POTENTIAL_GC ();
PUSH (v1);
- break;
+ NEXT;
}
- case Bindent_to:
+ CASE (Bindent_to):
BEFORE_POTENTIAL_GC ();
TOP = Findent_to (TOP, Qnil);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Beolp:
+ CASE (Beolp):
PUSH (Feolp ());
- break;
+ NEXT;
- case Beobp:
+ CASE (Beobp):
PUSH (Feobp ());
- break;
+ NEXT;
- case Bbolp:
+ CASE (Bbolp):
PUSH (Fbolp ());
- break;
+ NEXT;
- case Bbobp:
+ CASE (Bbobp):
PUSH (Fbobp ());
- break;
+ NEXT;
- case Bcurrent_buffer:
+ CASE (Bcurrent_buffer):
PUSH (Fcurrent_buffer ());
- break;
+ NEXT;
- case Bset_buffer:
+ CASE (Bset_buffer):
BEFORE_POTENTIAL_GC ();
TOP = Fset_buffer (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Binteractive_p:
+ CASE (Binteractive_p): /* Obsolete since 24.1. */
PUSH (Finteractive_p ());
- break;
+ NEXT;
- case Bforward_char:
+ CASE (Bforward_char):
BEFORE_POTENTIAL_GC ();
TOP = Fforward_char (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bforward_word:
+ CASE (Bforward_word):
BEFORE_POTENTIAL_GC ();
TOP = Fforward_word (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bskip_chars_forward:
+ CASE (Bskip_chars_forward):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fskip_chars_forward (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bskip_chars_backward:
+ CASE (Bskip_chars_backward):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fskip_chars_backward (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bforward_line:
+ CASE (Bforward_line):
BEFORE_POTENTIAL_GC ();
TOP = Fforward_line (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bchar_syntax:
+ CASE (Bchar_syntax):
{
int c;
CHECK_CHARACTER (TOP);
AFTER_POTENTIAL_GC ();
c = XFASTINT (TOP);
- if (NILP (current_buffer->enable_multibyte_characters))
+ if (NILP (BVAR (current_buffer, enable_multibyte_characters)))
MAKE_CHAR_MULTIBYTE (c);
XSETFASTINT (TOP, syntax_code_spec[(int) SYNTAX (c)]);
}
- break;
+ NEXT;
- case Bbuffer_substring:
+ CASE (Bbuffer_substring):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fbuffer_substring (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bdelete_region:
+ CASE (Bdelete_region):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fdelete_region (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bnarrow_to_region:
+ CASE (Bnarrow_to_region):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fnarrow_to_region (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bwiden:
+ CASE (Bwiden):
BEFORE_POTENTIAL_GC ();
PUSH (Fwiden ());
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bend_of_line:
+ CASE (Bend_of_line):
BEFORE_POTENTIAL_GC ();
TOP = Fend_of_line (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bset_marker:
+ CASE (Bset_marker):
{
Lisp_Object v1, v2;
BEFORE_POTENTIAL_GC ();
v2 = POP;
TOP = Fset_marker (TOP, v2, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bmatch_beginning:
+ CASE (Bmatch_beginning):
BEFORE_POTENTIAL_GC ();
TOP = Fmatch_beginning (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bmatch_end:
+ CASE (Bmatch_end):
BEFORE_POTENTIAL_GC ();
TOP = Fmatch_end (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bupcase:
+ CASE (Bupcase):
BEFORE_POTENTIAL_GC ();
TOP = Fupcase (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bdowncase:
+ CASE (Bdowncase):
BEFORE_POTENTIAL_GC ();
TOP = Fdowncase (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bstringeqlsign:
+ CASE (Bstringeqlsign):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fstring_equal (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bstringlss:
+ CASE (Bstringlss):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fstring_lessp (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bequal:
+ CASE (Bequal):
{
Lisp_Object v1;
v1 = POP;
TOP = Fequal (TOP, v1);
- break;
+ NEXT;
}
- case Bnthcdr:
+ CASE (Bnthcdr):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fnthcdr (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Belt:
+ CASE (Belt):
{
Lisp_Object v1, v2;
if (CONSP (TOP))
{
/* Exchange args and then do nth. */
+ EMACS_INT n;
BEFORE_POTENTIAL_GC ();
v2 = POP;
v1 = TOP;
CHECK_NUMBER (v2);
AFTER_POTENTIAL_GC ();
- op = XINT (v2);
+ n = XINT (v2);
immediate_quit = 1;
- while (--op >= 0 && CONSP (v1))
+ while (--n >= 0 && CONSP (v1))
v1 = XCDR (v1);
immediate_quit = 0;
TOP = CAR (v1);
TOP = Felt (TOP, v1);
AFTER_POTENTIAL_GC ();
}
- break;
+ NEXT;
}
- case Bmember:
+ CASE (Bmember):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fmember (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bassq:
+ CASE (Bassq):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fassq (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bnreverse:
+ CASE (Bnreverse):
BEFORE_POTENTIAL_GC ();
TOP = Fnreverse (TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bsetcar:
+ CASE (Bsetcar):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fsetcar (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bsetcdr:
+ CASE (Bsetcdr):
{
Lisp_Object v1;
BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fsetcdr (TOP, v1);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
}
- case Bcar_safe:
+ CASE (Bcar_safe):
{
Lisp_Object v1;
v1 = TOP;
TOP = CAR_SAFE (v1);
- break;
+ NEXT;
}
- case Bcdr_safe:
+ CASE (Bcdr_safe):
{
Lisp_Object v1;
v1 = TOP;
TOP = CDR_SAFE (v1);
- break;
+ NEXT;
}
- case Bnconc:
+ CASE (Bnconc):
BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fnconc (2, &TOP);
AFTER_POTENTIAL_GC ();
- break;
+ NEXT;
- case Bnumberp:
+ CASE (Bnumberp):
TOP = (NUMBERP (TOP) ? Qt : Qnil);
- break;
+ NEXT;
- case Bintegerp:
+ CASE (Bintegerp):
TOP = INTEGERP (TOP) ? Qt : Qnil;
- break;
+ NEXT;
#ifdef BYTE_CODE_SAFE
+ /* These are intentionally written using 'case' syntax,
+ because they are incompatible with the threaded
+ interpreter. */
+
case Bset_mark:
BEFORE_POTENTIAL_GC ();
error ("set-mark is an obsolete bytecode");
break;
#endif
- case 0:
+ CASE_ABORT:
+ /* Actually this is Bstack_ref with offset 0, but we use Bdup
+ for that instead. */
+ /* CASE (Bstack_ref): */
abort ();
- case 255:
- default:
+ /* Handy byte-codes for lexical binding. */
+ CASE (Bstack_ref1):
+ CASE (Bstack_ref2):
+ CASE (Bstack_ref3):
+ CASE (Bstack_ref4):
+ CASE (Bstack_ref5):
+ {
+ Lisp_Object *ptr = top - (op - Bstack_ref);
+ PUSH (*ptr);
+ NEXT;
+ }
+ CASE (Bstack_ref6):
+ {
+ Lisp_Object *ptr = top - (FETCH);
+ PUSH (*ptr);
+ NEXT;
+ }
+ CASE (Bstack_ref7):
+ {
+ Lisp_Object *ptr = top - (FETCH2);
+ PUSH (*ptr);
+ NEXT;
+ }
+ CASE (Bstack_set):
+ /* stack-set-0 = discard; stack-set-1 = discard-1-preserve-tos. */
+ {
+ Lisp_Object *ptr = top - (FETCH);
+ *ptr = POP;
+ NEXT;
+ }
+ CASE (Bstack_set2):
+ {
+ Lisp_Object *ptr = top - (FETCH2);
+ *ptr = POP;
+ NEXT;
+ }
+ CASE (BdiscardN):
+ op = FETCH;
+ if (op & 0x80)
+ {
+ op &= 0x7F;
+ top[-op] = TOP;
+ }
+ DISCARD (op);
+ NEXT;
+
+ CASE_DEFAULT
+ CASE (Bconstant):
#ifdef BYTE_CODE_SAFE
if (op < Bconstant)
{
#else
PUSH (vectorp[op - Bconstant]);
#endif
+ NEXT;
}
}
}
void
-syms_of_bytecode ()
+syms_of_bytecode (void)
{
- Qbytecode = intern_c_string ("byte-code");
- staticpro (&Qbytecode);
+ DEFSYM (Qbytecode, "byte-code");
defsubr (&Sbyte_code);
#ifdef BYTE_CODE_METER
- DEFVAR_LISP ("byte-code-meter", &Vbyte_code_meter,
+ DEFVAR_LISP ("byte-code-meter", Vbyte_code_meter,
doc: /* A vector of vectors which holds a histogram of byte-code usage.
\(aref (aref byte-code-meter 0) CODE) indicates how many times the byte
opcode CODE has been executed.
indicates how many times the byte opcodes CODE1 and CODE2 have been
executed in succession. */);
- DEFVAR_BOOL ("byte-metering-on", &byte_metering_on,
+ DEFVAR_BOOL ("byte-metering-on", byte_metering_on,
doc: /* If non-nil, keep profiling information on byte code usage.
The variable byte-code-meter indicates how often each byte opcode is used.
If a symbol has a property named `byte-code-meter' whose value is an
byte_metering_on = 0;
Vbyte_code_meter = Fmake_vector (make_number (256), make_number (0));
- Qbyte_code_meter = intern_c_string ("byte-code-meter");
- staticpro (&Qbyte_code_meter);
+ DEFSYM (Qbyte_code_meter, "byte-code-meter");
{
int i = 256;
while (i--)
- XVECTOR (Vbyte_code_meter)->contents[i] =
- Fmake_vector (make_number (256), make_number (0));
+ ASET (Vbyte_code_meter, i,
+ Fmake_vector (make_number (256), make_number (0)));
}
#endif
}
-
-/* arch-tag: b9803b6f-1ed6-4190-8adf-33fd3a9d10e9
- (do not change this comment) */
HCoop / bpt / emacs.git / blobdiff