W h e n t h e B o o t - S t r a p p r o g r a m i s l o a d e d c o r r e c t l y , t h e
following message appears on your C R T , t h e r e a f t e r t h e s y s t e m
program is loaded into the main memory from the system diskette.
I n
c a s e
o f u s i n g t h e
t h e
s y s t e m p r o g r a m i s l o a d e d
i n t o
a d d r e s s e s .
See < Fig. 16
M e m o r y A l l o c a t i o n U s i n g
>
B o o t
V e r .
f o r
2 D
Then, i f
a n
e r r o r o c c u r s , t h e f o l l o w i n g m e s s a g e w i l l
appear on your CRT, a n d t h e p r o c e s s o f l o a d i n g t o t h e m a i n
m e m o r y
restarts again.
B o o t e r r .
W h e n t h e B o o t - S t r a p p r o g r a m i s l o a d e d c o r r e c t l y , t h e
following message appears on your CRT, and the
s t a r t s a u t o m a t i c a l l y .
60K
V e r s .
2.2 Formula-l System
BIOS Created
By YCU Co., Ltd.
Cursor
Software Specifications
-1
Operating System
T h e F o r m u l a - l u s e s t h e
Version 2.2 which is
e v a l u a t e d a s t h e s t a n d a r d
O p e r a t i n g
S y s t e m o f 8 b i t s m i c r o -
c o m p u t e r i n t h e w o r l d .
This Operating System can operate application programs and
p r o c e s s d a t a w i t h o u t d i f f i c u l t y b e c a u s e o f i t s s u p e r i o r
p u r p o s e d f e a t u r e a n d e x c e l l e n t o p e r a t i n g a b i l i t y .
F o r this
r e a s o n , e v e n t h e s o f t w a r e d e v e l o p e d f o r o t h e r c o m p u t e r s y s t e m s
o f d i f f e r e n t a r c h i t e c t u r e c a n k e e p m u t u a l - t r a n s f e r a b i l i t y , a s
long as they are based on the CP/M-80 Operating System.
T h e r e f o r e , o l d l i b r a r i e s a s w e l l a s k n o w - h o w s a l r e a d y f i l e d - i n
can be used easily.
See the
OPERATING SYSTEM MANUAL’ for details of
the
commands.
T h e F o r m u l a - l c a n u s e v a r i o u s k i n d s o f
a p p l i c a t i o n s o f t w a r e p a c k a g e s o n t h e
basis available on
the market.
The CP/M-80 is a standard Disk Operating System for the micro-
computer.
The
system is composed of CCP to process a command,
B D O S t o m a n a g e
a c c e s s
o f t h e f i l e , B I O S t o c o n t r o l t h e I / O
d e v i c e w h i c h a u s e r
u s e s ,
and TPA of the memory area in which a
u s e r ’ s p r o g r a m i s a l l o c a t e d .
T h e
system is
a F D O S ,
in which the sequential
processing is main.
Which
reads
out the
and executes when
a c o m m a n d b e i n g i n p u t b y t h e c o n s o l e a n d it c o r r e s p o n d s t o a
program name.
Using t h e
S y s t e m F u n c t i o n s , a l o n g w i t h
a u s e r ’ s p r o g r a m , a u s e r c a n e a s i l y a c t u a l i z e t h e d a t a t r a n s f e r
w i t h I / O d e v i c e , the management of the data file in the
d i s k d r i v e , e t c .
F o r d e t a i l m e m o r y a l l o c a t i o n t o u s e w i t h t h e
Operating
System see the item No.
M e m o r y A l l o c a t i o n
and Boot-Strap ROM
T h e r e
a r e
t w o k i n d s o f c o m m a n d s i n t h e
i s b u i l t - i n
command, and the other is
a
transient command.
T h e t r a n s i e n t
command being loaded into the memory
the diskette.