gc80c520g CORERIVER Semiconductor, gc80c520g Datasheet - Page 73
gc80c520g
Manufacturer Part Number
gc80c520g
Description
Eprom / Rom / Romless Based 8-bit Turbo Microcontrollers
Manufacturer
CORERIVER Semiconductor
Datasheet
1.GC80C520G.pdf
(98 pages)
- Current page: 73 of 98
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DEC
MUL
DIV
Decrement
Multiply
Divide
Appendix A : instruction set (3/18)
DEC
Operation :
DEC
Operation :
DEC
Operation :
DEC
Operation :
DEC
Operation :
Operation :
Operation :
<byte>
AB
AB
@Ri
direct
A
Rn
DPTR
(A)
(Rn)
((Ri))
(direct)
(DPTR)
(A)
(B)
(A)
(B)
7-0
15-8
15-8
7-0
(A) - 1
(Rn) - 1
((Ri)) - 1
(DPTR) - 1
(A) x (B)
(A) / (B)
(direct) - 1
0 0 0 1 0 1
0
0
0
1
1
1
Encoding :
Encoding :
Encoding :
Encoding :
Encoding :
Encoding :
Encoding :
0
0
0
0
0
0
0
0
0
1
1
0
1
1
1
0
0
0
0
1
0
0
0
0
r
1
1
1
1
1
0
r
1
0
0
0
0
HEX: 14h, #bytes: 1, Cycles: 1
HEX: 18h, #bytes: 1, Cycles: 1
HEX: 16h, #bytes: 1, Cycles: 1
HEX: 15h, #bytes: 1, Cycles: 1
HEX: A5h, #bytes: 1, Cycles: 1
HEX: A4h, #bytes: 1, Cycles: 3
HEX: 84h, #bytes: 1, Cycles: 3
0
r
i
1
1
0
0
direct addr
MiDAS1.0 Family
[73]
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