KOS_OP_SWITCH_EQ_CONST

• Style: EXTRA. Schema (LABEL, CONST, NOARG, NOARG).

• Stack: [..., s]. Compare s == cpool[a1] with Py_EQ.

  • Match: pop s; pc = a0.

  • Mismatch: fall through; stack unchanged (s still TOS).

• Compiler form: tuple arg ("label", const_value, 0, 0) pre-compile; post-compile row stores pc in a0 and constant index in a1.

• Implementation: koskari/lib/opcode/SWITCH_EQ_CONST.c