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PUSH
PUSH
Operation:
(SP) - (SP) - 2
((SP)
+ 1 :(SP)) - (SRC)
Description:
PUSH source
PUSH decrements SP (the stack pointer) by
two and then tranfers a word from the source
operand to the top
of
stack now pointed to by
SP. PUSH often
is
used to place parameters
on the stack before calling a procedure; more
generally, it
is
the basic means of storing tem-
porary
data
on the stack.
2-129
Flags Affected:
None
PUSH