Z8S180 Zilog., Z8S180 Datasheet - Page 246

• Manufacturer Part Number: Z8S180
• Description: ENHANCED Z180 MICROPROCESSOR
• Manufacturer: Zilog.

230
Table 45. Program Control Instructions (Continued)
UM005001-ZMP0400
Operation
Name
Jump
Return
Restart
Z8018x Family
MPU User Manual
Mnemonics Op Code
JR Zj
JR NZj
RET
RET f
RETI
RETN
RST v
00 101 000
00 100 000
11001001
11f 000
11101101
01001101
11101101
01000101
11 v 111
j-2
j-2
Immed Ext Ind Reg RegI Imp Rel
Addressing
D
D
D
D
D
D
D
Bytes States
2
2
2
2
1
1
1
2
2
1
6
8
6
8
9
5 (f : false)
10 (f : true) RET : f is true
12 (R0,R1) (SP)
ZZ(z)
12
11
continue : Z = 0
PC
continue : Z = 1
PC
(SP)
(SP + 1)
SP
continue : f is false
(SP + 1)
SP
(SP)
(SP + 1)
SP
IEF2 IEF1
PCHr (SP-1)
PCLr (SP-2)
0 PCHr
v PCLr
SP
R
R
R
R
R
R
-2 SP
, + j PC
M
M
M
+ j PC
+ 2 SP
+ 2 SP
+ 2 SP
Operation
PCLr
M
PCLr
M
PCLr
M
R
PCHr
PCHr
PCHr
R
R
R
R
R
M
M
: Z = 0
: Z = 1
7 6 4 2
S Z H P/V N C
Flags
1 0