INT 06 C - CPU-generated (80186+) - INVALID OPCODE Desc: this interrupt is generated when the CPU(Central Processing Unit) The microprocessor which executes programs on your computer. attempts to execute an invalid opcode (most protected-mode instructions are considered invalid in real mode) or a BOUND, LDS, LES, or LIDT instruction which specifies a register rather than a memory address Notes: return address points to beginning of invalid instruction with proper programming, this interrupt may be used to emulate instructions which do not exist; many 386 BIOSes emulate the 80286 undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated. LOADALL instruction which was removed from the 80386+ generated by the 80386+ when the LOCK prefix is used with instructions other than BTS, BTR, BTC, XCHG, XADD (486), CMPXCHG (486), INC, DEC, NOT, NEG, ADD, ADC, SUB, SBB, AND, OR, or XOR, or any instruction not accessing memory. SeeAlso: INT 0C"CPU(Central Processing Unit) The microprocessor which executes programs on your computer.",INT 0D"CPU(Central Processing Unit) The microprocessor which executes programs on your computer."