Sharp PC-1600 Systemhandbuch Seite 305

CALL und RETURN Befehle
(12)
Mnemonic
Operation
code
(SP-l)<--PC
CALL nn
(SP- 2)<--PCI.
PC<--nn
CALL cc, nn
U s true, t heoperation ~the
CI:
same as
(ALL
then mere totheneninstruction.
RET
PCL......{SP)
PC ......{SP+l)
H
RET cc true, t heoperation
is
[f CI:
RH.
same as
r~.
II then morr t o
C( ~
oext i nstruction.
RETI
Return
interrupt.
RETN Return
NMI.
RST p
(SP-l)~PCH
(SP-2)~PCL
PCH+-O
PCL~P
Flags
C PIV S
Z N
•
• • •
H
• • •
•
r~.
nn. lf
s
CI:
• • • • • •
• • • •
is tbe
ihe
• • • • • •
from the
• • • • • •
from 9-
• • • • • •
Do not sale !
OP code
of 'Io.of
'10.
~Ind11S T states
bytes
H 76 543 210
•
11 001 101
it 3
~ ~
n
~ ~
n
• •
11 cc 100
3
~ ~
n
~
~
n
3
11 001 001 1
• •
11 cc 000 1
1
2
11 101 101
01 001 101
11 101 101 2
01 000 101
11 111 1
t
295
'Io.of
Remarks
17
5
3 10
When cc is false
5 17 When cc is true
10
3
When cc is false
1 5
When cc is true
3 11
ee
Conditions
4 14 000 NZ non zero
001 Z zero
010 Ne non carry
4 14
C
011 rarr)'
PO parity odd
100
3 11
PE pa rity even
101
P sign positive
110
M sign negative
111
t
000
001
010
011
100
101
110
111
Anhang
P
OOH
08H
lOH
18H
20H
28H
30H
38H