Added with 80386 Instruction Set Architecture (ISA)

Instructions added with the 80386 processors:

• BSF
  Bit Scan Forward
• BSR
  Bit Scan Reverse
• BT
  Bit Test
• BTC
  Bit Test and Complement
• BTR
  Bit Test and Reset
• BTS
  Bit Test and Set
• CDQ
  Convert Doubleword to Quadword
• CMPSD
  Compare String Operands
• CWDE
  Convert Word to Doubleword
• INSD
  Input from Port to String
• IRETD/IRETDF/IRETF
  Interrupt Return
• JECXZ
  Jump if rCX Zero
• LFS/LGS/LSS
  Load Far Pointer
• LOADALL (undocumented)
  Load All Registers
• LODSD
  Load String
• LOOPD/LOOPED/LOOPNED/LOOPNZD/LOOPZD
  Loop According to ECX Counter
• MOVSD
  Move Data from String to String
• MOVSX
  Move with Sign-Extension
• MOVZX
  Move with Zero-Extend
• OUTSD
  Output String to Port
• POPAD
  Pop All General-Purpose Registers
• POPFD
  Pop Stack into EFLAGS Register
• PUSHAD
  Push All General-Purpose Registers
• PUSHD
  Push Word, Doubleword or Quadword Onto the Stack
• PUSHFD
  Push EFLAGS Register onto the Stack
• SCASD
  Scan String
• SETcc (SETA, SETAE, SETB, SETBE, SETC, SETE, SETG, SETGE, SETL, SETLE, SETNA, SETNAE, SETNB, SETNBE, SETNC, SETNE, SETNG, SETNGE, SETNL, SETNLE, SETNO, SETNP, SETNS, SETNZ, SETO, SETP, SETPE, SETPO, SETS, SETZ)
  Set Byte on Condition
• SHLD
  Double Precision Shift Left
• SHRD
  Double Precision Shift Right
• STOSD
  Store String