Z8F1680SH020SG Datasheet, PDF (364/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
339
Table 186. eZ8 CPU Instruction Summary (Continued)
Assembly
Mnemonic
DJNZ dst, RA
EI
Symbolic Operation
dst ← dst – 1
if dst ≠ 0
PC ← PC + X
IRQCTL[7] ← 1
Address
Mode
dst src
r
HALT
Halt Mode
INC dst
dst ← dst + 1
R
IR
r
INCW dst
dst ← dst + 1
RR
IRET
JP dst
IRR
FLAGS ← @SP
SP ← SP + 1
PC ← @SP
SP ← SP + 2
IRQCTL[7] ← 1
PC ← dst
DA
IRR
JP cc, dst
if cc is true
DA
PC ← dst
JR dst
PC ← PC + X
DA
JR cc, dst
if cc is true
DA
PC ← PC + X
Flags notation:
* = Value is a function of the result of the operation.
– = Unaffected.
X = Undefined.
0 = Reset to 0.
1 = Set to 1.
Op
Code(s)
(Hex)
0A-FA
Flags
Fetch Instr.
C Z S V D H Cycles Cycles
–––––– 2
3
9F
–––––– 1
2
7F
–––––– 1
2
20
–* *––– 2
2
21
2
3
0E-FE
1
2
A0
–* * *–– 2
5
A1
2
6
BF
****** 1
5
8D
–––––– 3
2
C4
2
3
0D-FD – – – – – – 3
2
8B
–––––– 2
2
0B-FB – – – – – – 2
2
PS025015-1212
PRELIMINARY
eZ8 CPU Instruction Set