Sharp PC-1500 - Page 59

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2-5. Command list
54
Li st of LH5801 Microproces sor wi ll be ~how n in pag es to follow. There ar c following nine
types of commands.
Single byte command
( 1) I op code
Two-byte command
( 2) I i i i 1 1 1 O i I op cod e
(3)
op code
Three-byte
command
(4) I 1 I I 1 l 1 0 1 I
(5)
op code
immediate
(i)
op code immediate
(i)
immediate H immediate L
( i) 16 bi ts (j)
(6 ) op code
~- a - d - d - r e - ss H I address L
(a) (b)
Four-byte command
(7) I 1 1 1 l 1 1 0 1
op
code
address H
(a)
(8 )
op code address H address L
(a) (b)
Five-byte command
(9) I 1 1 I 1 1 1 0 1 I
op code address H
(a)
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J
address L
(b)
im me diate
J
(i)
ad dress L
immedi ate
(b ) (1)