Zilog Z86193 - Manual (Page 158)

Z8
®
CPU
User Manual
UM001604-0108 Instruction Set
151
CP dst, src
dst
− src
† A[ ] [ [ [ [ – –
DA dst R 40 [ [ [ X – –
dst ← DA dst IR 41
DEC dst R 00 – [ [ [ – –
dst ← dst–1 IR 01
DECW dst R R 80 – [ [ [ – –
dst ← dst–1 IR 81
DI dst
IMR(7)
← 0
8 F – – – – – –
DJNZr, dst RA rA – – – – – –
r ← r–1
if r ≠ 0
PC ← PC + dst
Range:+127, –128
r = 0-F
EI 9 F – – – – – –
IMR(7) ← 1
HALT 7 F – – – – – –
INC dst
dst
← dst + 1
r rE – [ [ [ – –
r = 0-F
R 20
IR 21
INCW dst RR A0 – [ [ [ – –
dst ← dst + 1 IR A1
Instruction
and Operation
Address
Mode Op Code
Byte (Hex)
Flags Affected
dst src C Z S V D H
IRET
FLAGS
←@SP;
SP ← SP + 1
PC ← @SP;
SP ← SP + 2;
and IMR(7)–1
B F [ [ [ [ [ [
Table 39. Summary of Z8 Instruction Set (Continued)
Instruction and Operation
Address Mode
Op Code
Byte (Hex)
Flags Affected
dst src C Z S V D H