Sharp MZ-80B - Page 107

100
Mne m onic
CALL nn
CALL cc,nn
RET
RET
cc
RET !
RETN
RST
p
No. !'o.
.\"o.
Symbo lic
Flags
OP-Code
of of ~I
ofT
Comments
Operation
c
z P/V
s
N H 76 543 210
Bytes
Cycles
States
(SP-l) ~ PC II
• • • • • •
11 001 101 3
5
17
(SP - 2)~PCt.
~
n
-
PC - nn
~
n
-
If co nditi on cc is fal se
• •
•
• • •
11 cc 100 3
3
10
If
cc is fa l se
continu e, ot herwi se
~
n
-
same as CALL nn
~
n
-
3 5
17
lf cc is
tru e
PC~, - (SP)
• •
•
• • •
11 001 001 1
3
10
PCu - (SP + 1)
If condition cc is fa l se
• • •
•
• •
ll
cc 000
1
1
5
lf cc is
fal
se
continue , otherwise
1 3
11
If cc is
tru e
same as RET
cc
Re turn from
•
•
•
•
• •
ll 101
101
2 4 14 000
int errupt 01 001 1 01 00 1
Re turn from non
•
• •
•
•
•
ll 1 01 101 2 4
14
010
ma skable interrupt 01 000 1 01
011
100
101
110
Ill
(SP - l) ~ PCII
•
• •
•
• •
II t 111 1
3
ll
t
(SP - 2) ~ PCt.
000
P C
11 - 0
00 1
PC~, ~ P
010
011
100
10 1
110
11 1
Flag Notation: • = flag not affected, 0 = flag reset, 1 = flag set, X = flag is unknown
t = flag is affected according to the result of the operation.
CALL AND RETURN GROUP
TABLE 4.3- 10
Conditi on
NZ non ze ro
'l zero
NC non ca rry
C carry
PO pa r ity odd
I'E parity even
I' sign po sitive
M sign negatiH
p
OOH
OSH
10H
ISH
20H
28H
30H
38H