mirrors/lua
0
0
Fork 0
mirror of https://github.com/lua/lua.git synced 2024-11-27 04:03:54 +08:00
Code Issues Packages Projects Releases Wiki Activity
master
lua/ljumptab.h

113 lines
1.6 KiB
C
Raw Permalink Normal View History

Added missing $Id$ to file 'ljumptab.h'
2018-07-11 00:40:30 +08:00
/*
Removed extra information from RCS keyword strings Version numbers and dates (mostly wrong) from RCS keyword strings removed from all source files; only the file name are kept.
2018-08-24 01:26:12 +08:00
** $Id: ljumptab.h $
Added missing $Id$ to file 'ljumptab.h'
2018-07-11 00:40:30 +08:00
** Jump Table for the Lua interpreter
** See Copyright Notice in lua.h
*/
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
#undef vmdispatch
#undef vmcase
#undef vmbreak
#define vmdispatch(x) goto *disptab[x];
#define vmcase(l) L_##l:
#define vmbreak vmfetch(); vmdispatch(GET_OPCODE(i));
Several details about 5.4.0 rc1 Corrected several small details: added 'const', adjusts in tabs x spaces, removed unused #includes and #defines, misspellings, etc.
2020-04-24 01:48:15 +08:00
static const void *const disptab[NUM_OPCODES] = {
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
details (avoid using non-C89 '//' comment)
2018-03-08 00:26:01 +08:00
#if 0
** you can update the following list with this command:
**
** sed -n '/^OP_/\!d; s/OP_/\&\&L_OP_/ ; s/,.*/,/ ; s/\/.*// ; p' lopcodes.h
**
#endif
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_MOVE,
&&L_OP_LOADI,
&&L_OP_LOADF,
&&L_OP_LOADK,
&&L_OP_LOADKX,
Changed internal representation of booleans Instead of an explicit value (field 'b'), true and false use different tag variants. This avoids reading an extra field and results in more direct code. (Most code that uses booleans needs to distinguish between true and false anyway.)
2020-01-06 22:38:31 +08:00
&&L_OP_LOADFALSE,
OP_LOADFALSE broken in two instructions
2020-02-11 22:12:33 +08:00
&&L_OP_LFALSESKIP,
Changed internal representation of booleans Instead of an explicit value (field 'b'), true and false use different tag variants. This avoids reading an extra field and results in more direct code. (Most code that uses booleans needs to distinguish between true and false anyway.)
2020-01-06 22:38:31 +08:00
&&L_OP_LOADTRUE,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_LOADNIL,
&&L_OP_GETUPVAL,
&&L_OP_SETUPVAL,
&&L_OP_GETTABUP,
&&L_OP_GETTABLE,
&&L_OP_GETI,
&&L_OP_GETFIELD,
&&L_OP_SETTABUP,
&&L_OP_SETTABLE,
&&L_OP_SETI,
&&L_OP_SETFIELD,
&&L_OP_NEWTABLE,
&&L_OP_SELF,
&&L_OP_ADDI,
Added opcodes for arithmetic with K operands Added opcodes for all seven arithmetic operators with K operands (that is, operands that are numbers in the array of constants of the function). They cover the cases of constant float operands (e.g., 'x + .0.0', 'x^0.5') and large integer operands (e.g., 'x % 10000').
2018-11-23 22:23:45 +08:00
&&L_OP_ADDK,
&&L_OP_SUBK,
&&L_OP_MULK,
&&L_OP_MODK,
&&L_OP_POWK,
&&L_OP_DIVK,
&&L_OP_IDIVK,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_BANDK,
&&L_OP_BORK,
&&L_OP_BXORK,
&&L_OP_SHRI,
&&L_OP_SHLI,
&&L_OP_ADD,
&&L_OP_SUB,
&&L_OP_MUL,
&&L_OP_MOD,
&&L_OP_POW,
&&L_OP_DIV,
&&L_OP_IDIV,
&&L_OP_BAND,
&&L_OP_BOR,
&&L_OP_BXOR,
&&L_OP_SHL,
&&L_OP_SHR,
First version of OP_MMBIN opcodes In arithmetic/bitwise operators, the call to metamethods is made in a separate opcode following the main one. (The main opcode skips this next one when the operation succeeds.) This change reduces slightly the size of the binary and the complexity of the arithmetic/bitwise opcodes. It also simplfies the treatment of errors and yeld/resume in these operations, as there are much fewer cases to consider. (Only OP_MMBIN/OP_MMBINI/OP_MMBINK, instead of all variants of all arithmetic/bitwise operators.)
2019-08-28 00:59:39 +08:00
&&L_OP_MMBIN,
&&L_OP_MMBINI,
&&L_OP_MMBINK,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_UNM,
&&L_OP_BNOT,
&&L_OP_NOT,
&&L_OP_LEN,
&&L_OP_CONCAT,
&&L_OP_CLOSE,
Towards "to closed" local variables Start of the implementation of "scoped variables" or "to be closed" variables, local variables whose '__close' (or themselves) are called when they go out of scope. This commit implements the syntax, the opcode, and the creation of the corresponding upvalue, but it still does not call the finalizations when the variable goes out of scope (the most important part). Currently, the syntax is 'local scoped name = exp', but that will probably change.
2018-10-08 21:42:07 +08:00
&&L_OP_TBC,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_JMP,
&&L_OP_EQ,
&&L_OP_LT,
&&L_OP_LE,
&&L_OP_EQK,
&&L_OP_EQI,
&&L_OP_LTI,
&&L_OP_LEI,
&&L_OP_GTI,
&&L_OP_GEI,
&&L_OP_TEST,
&&L_OP_TESTSET,
&&L_OP_CALL,
&&L_OP_TAILCALL,
&&L_OP_RETURN,
&&L_OP_RETURN0,
&&L_OP_RETURN1,
&&L_OP_FORLOOP,
&&L_OP_FORPREP,
More uniformity in code generation for 'for' loops Added new instruction 'OP_TFORPREP' to prepare a generic for loop. Currently it is equivalent to a jump (but with a format 'iABx', similar to other for-loop preparing instructions), but soon it will be the place to create upvalues for closing loop states.
2018-10-26 21:38:50 +08:00
&&L_OP_TFORPREP,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_TFORCALL,
&&L_OP_TFORLOOP,
&&L_OP_SETLIST,
&&L_OP_CLOSURE,
&&L_OP_VARARG,
Keep correct type for immediate operands in comparisons When calling metamethods for things like 'a < 3.0', which generates the opcode OP_LTI, the C register tells that the operand was converted to an integer, so that it can be corrected to float when calling a metamethod. This commit also includes some other stuff: - file 'onelua.c' added to the project - opcode OP_PREPVARARG renamed to OP_VARARGPREP - comparison opcodes rewritten through macros
2019-03-23 00:37:17 +08:00
&&L_OP_VARARGPREP,
Jump Table for the interpreter
2018-03-03 02:56:14 +08:00
&&L_OP_EXTRAARG
};
Reference in New Issue Copy Permalink