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FUNCTION
49h
-
Release
Memory
Block
AX
BX
CX
DX
SP:
BP:
SI:
Dl:
IP:
FLG
CS
DS
SS
ES
xxxxxxxx
xxxxxxxx
Entry:
ES
-
Address
of
block
to free
Exit
AX
-
Error
code
if
carry
set
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This
function
will
release
back
to
the
system
a
block
of
memory
allocated
through
function
48h
The
user loads
the
paragraph address
of
the block
to
be
freed
into
ES
and
then
performs
the
system
call.
On
return,
if
the
carry
flag
is
not
set,
the
memory
block
will
have
been
released
back
to
the
system.
If
the carry
flag
is
set,
an
error
occurred,
and
the
error
code
is in
AX.
39
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