13
2.1.3 General flow
chart
for
Initial Program Loading
Initial
Program Loading
is
normally accomplished
by
the
above simple operation.
Individual operations needed
to
perform Initial Program Loading in special cases (for example,
when loading from a cassette tape file with
the
floppy disk unit connected
to
the
MZ-80B; or when
loading from a drive
other
than drive No. 1) and measures
to
prevent errors are described later.
FIGURE 2.6 depicts the general flow chart for Initial
Program Loading. Execution
of
Initial Pro-
gram Loading normally progresses
as
indicated
by
the
solid line; however, manual operations may be
required depending
upon
conditions
at
the branchpoints.
I
Power-SW
ON
I I
IPL Reset-
SW
ON
I
I I
t
~
"C
" Key?
No
a
Yes
FD
Connection?
/
No
FD
Power-
SW
?
OFF
ON
Diskette setting?
\No
Yes
I
SET READY
FOR
FD
[SET
READY
FOR
CMT l
I
~
f
SELECT CMT OR
FD
No
Tape setting?
"C"
key: Cassette tape
Yes
"
F"
key:
Floppy
diskette
I
Program search
I
& load
/
"C
" Key?
No
~
~
OBJECT Mode?
Program search
"F"
Key?
Yes'
& load
Yes
r
Break
No'
DRIVE NO?
(1-4)
Error
~
NoJ
I
Jump
to
the
I
loaded program
CMT :
Cassette Magnetic Tape
FD
floppy
d1sk
Dnve
FIGURE 2.6 General flow chart for lPL
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