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JS/js/jsopcode.def  view on Meta::CPAN

 * length       Number of bytes including any immediate operands
 * nuses        Number of stack slots consumed by bytecode, -1 if variadic
 * ndefs        Number of stack slots produced by bytecode
 * prec         Operator precedence, zero if not an operator
 * format       Bytecode plus immediate operand encoding format
 *
 * This file is best viewed with 116 columns:
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
 */

/* legend: op         val name          image       len use def prec  format */

/* Permanently-assigned bytecodes. */
OPDEF(JSOP_NOP,       0,  "nop",        NULL,         1,  0,  0,  0,  JOF_BYTE)
OPDEF(JSOP_PUSH,      1,  "push",       NULL,         1,  0,  1,  0,  JOF_BYTE)
OPDEF(JSOP_POPV,      2,  "popv",       NULL,         1,  1,  0,  0,  JOF_BYTE)
OPDEF(JSOP_ENTERWITH, 3,  "enterwith",  NULL,         1,  1,  1,  0,  JOF_BYTE)
OPDEF(JSOP_LEAVEWITH, 4,  "leavewith",  NULL,         1,  1,  0,  0,  JOF_BYTE)
OPDEF(JSOP_RETURN,    5,  "return",     NULL,         1,  1,  0,  0,  JOF_BYTE)
OPDEF(JSOP_GOTO,      6,  "goto",       NULL,         3,  0,  0,  0,  JOF_JUMP)
OPDEF(JSOP_IFEQ,      7,  "ifeq",       NULL,         3,  1,  0,  0,  JOF_JUMP)