Z80180 Datasheet, PDF (246/326 Pages) Zilog, Inc. – Z8018x Family MPU

Z8018x Family
MPU User Manual
230
Table 45. Program Control Instructions (Continued)
Flags
Operation
Name Mnemonics Op Code
Addressing
Immed Ext Ind Reg RegI Imp Rel Bytes States
Operation
7642 10
S Z H P/V N C
Jump JR Zj
JR NZj
Return RET
00 101 000
<j-2>
00 100 000
<j-2>
11001001
RET f
RETI
RETN
11f 000
11101101
01001101
11101101
01000101
Restart RST v
11 v 111
D2
2
D2
2
D
1
D1
1
D
2
D
2
D
1
6
continue : Z = 0
••••
8
PC_R, + j→ PC_R : Z = 1
6
continue : Z = 1
8
9
5 (f : false)
PC_R + j→ PC_R : Z = 0
(SP)_M→ PCLr
••••
(SP + 1)_M→ PCHr
SP_R + 2→ SP_R
continue : f is false • • • •
10 (f : true) RET : f is true
12 (R0,R1) (SP)_M→ PCLr
ZZ(z)
(SP + 1)_M→ PCHr
SP_R + 2→ SP_R
12
(SP)_M→ PCLr
(SP + 1)_M→ PCHr
SP_R + 2→ SP_R
IEF2→ IEF1
••••
••••
11
PCHr→ (SP-1)_M
••••
PCLr→ (SP-2)_M
0→ PCHr
v→ PCLr
SP_R-2→ SP_R
••
••
••
••
••
••
UM005001-ZMP0400