GNU Info

(nasm.info)Section B.4.264

---

Next: Section B.4.265 Prev: Section B.4.263 Up: Section B.4

---

Enter node , (file) or (file)node

B.4.264. `PUSHAx': Push All General-Purpose Registers
-----------------------------------------------------

     PUSHA                         ; 60                   [186]
     PUSHAD                        ; o32 60               [386]
     PUSHAW                        ; o16 60               [186]

   `PUSHAW' pushes, in succession, `AX', `CX', `DX', `BX', `SP', `BP',
`SI' and `DI' on the stack, decrementing the stack pointer by a total
of 16.

   `PUSHAD' pushes, in succession, `EAX', `ECX', `EDX', `EBX', `ESP',
`EBP', `ESI' and `EDI' on the stack, decrementing the stack pointer by
a total of 32.

   In both cases, the value of `SP' or `ESP' pushed is its _original_
value, as it had before the instruction was executed.

   `PUSHA' is an alias mnemonic for either `PUSHAW' or `PUSHAD',
depending on the current `BITS' setting.

   Note that the registers are pushed in order of their numeric values
in opcodes (see *Note Section B.2.1::).

   See also `POPA' (*Note Section B.4.245::).