PUSHA
No operands
Push all general purpose registers AX, CX, DX, BX, SP, BP, SI, DI in the
stack. Original value of SP register (before PUSHA) is used.
Note: this instruction works only on 80186 CPU and later!
Algorithm:
PUSH AX
PUSH CX
PUSH DX
PUSH BX
PUSH SP
PUSH BP
PUSH SI
PUSH DI
Flags:
C Z S O P A
unchanged