2 CPU CPU COMET II FFFF CPU F F F F F F F F F F E F F F D F F F C 2

(1)

3E

3E 2003.5.26

? 1

C

OS

(1) COMET II CPU

COMET II

(2)

0.

COMET II 16 1 (1 )

1 16

(0111 1111 1111 1111)2 = (2¹⁵-1)10=(32767)10

(1000 0000 0000 0000)2 = (2¹⁵)10=-(32768)10

JIS X0201 8

8 256

COMET II 1 16 8 COMET II

1 1 16 8 0 8

1 Yama Y (59)16

a (61)16 m (6D)16 COMET

OS

0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 B 0 0 0

B 0 0 1 B 0 0 2 B 0 0 3 B 0 0 4 A F F F

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

CFTGUU FCVC

0 0 5 9

0 1 1 0 0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 1 1 0 1

0 0 6 1 0 0 6 D 0 0 6 1

; C C O

(9)10 "9"

"9" JIS X0201 (39)16

0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0

0 0 0 9

0 0 1 1 1 0 0 1 0 0 3 9

(3)

1.

1.1

Windos

Infocasl p.187

URL http://www.rs.kagu.tus.ac.jp/~infoserv/j-siken/infocasl/

WCASL-II

COMET II

URL http://www.ics.teikyo-u.ac.jp/wcasl2/

1.2 WCASL-II

COMET II WCASL-II[1] COMET II

COMET II 1

COMET II CPU ( )

CPU

1 COMET

II ( P207 )

WCASL-II COMET II WCASL II

1

IR MAR MDR

3 CASL II

2 COMET

II CASL II

(4)

1 WCASL-II COMET II

&0(7

&38

(5)

1 WCASL-II

GR General Register SP Stack Pointer PR Program

Register FR Flag Register IR Instruction Register

MAR Memory ^Address ^Register

MDR Memory Data Register

2 WCASL-II

ALU ArithmeticLogical ^Unit ^and

'HFRGHU

&RQWUROHU

%XV $/8

$GGHU 0HPRU\

2. ( )

2.1

( ) 2

CPU CPU

COMET II

16 10 (0)10 (65535)10

16 (0000)16 (FFFF)16

16 1

(6)

CPU

1 1 0 0 0 0 0 0 0 1 0 1 1 0 0 1 8 0 0 0

8 0 0 1 8 0 0 2 8 0 0 3 8 0 0 4 7 F F F

0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0

0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 1 1 0 1 0 1 1 0 0 1 0 0 1 0 0 1 1 0 0 1 1 1 0 0 1 1 0 0

1 0 0 1 0 0 1 1 0 0 1 1 1 0 1 1

1 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0 0 1 1 0 1 1 1 1

1 0 0 0 1 0 0 0 1 1 0 0 0 1 0 0

0 1 0 0 0 0 0 0 0 1 0 1 0 1 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 0 0 1 1 1 0 1 0 0 0 0 0 1 0 1 0 1 0 1

0 0 0 0 0 0 0 1 0 0 0 2 0 0 0 3

F F F F F F F E F F F D F F F C

2 ( ) 16 2

3.

3.1

3+5 PGM START

LD GR1,A ADDA GR1,B ST GR1,C RET

A DC 3

B DC 5

C DS 1

END

16 16

(7)

16 (PR)

16 16

3.2

PGM START

LD GR1,A ADDA GR1,B ST GR1,C RET

A DC 3 B DC -5 C DS 1

END

1 2

4.

[1] WCASL-II

http://www.ics.teikyo-u.ac.jp/wcasl2/

p.17 2.4 4

^p213 ^2.4 ²