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THE
80286
INSTRUCTION SET
POPA-Pop
All
General Registers
Opcode Instruction Clocks Description
61
POPA 19 Pop
in
order: DI,SI,8P,SP,8X,DX,CX,AX
FLAGS MODIFIED
None
FlAGS
UNDEFINED
None
OPERATION
POPA pops the eight general registers given
in
the description above, except that the SP value
is
discarded instead of loaded into SP. POPA reverses a previous PUSHA, restoring the general registers
to their values before
PUSHA
was
executed. The first register popped
is
DI.
PROTECTED MODE EXCEPTIONS
#SS(O)
if the starting or ending stack address
is
not within the stack segment.
REAL ADDRESS MODE EXCEPTIONS
Interrupt
13
for a word operand
at
offset OFFFFH.
8-85