NEC mPD78C14 A Schematics page 26

Mnemonic Operand
B1
EA, rp3 0 1 1 1 0 1 0 0
DGT
EA, rp3
DLT
EA, rp3
DNE
EA, rp3
DEQ
EA, rp3
DON
EA, rp3
DOFF
r2
MUL 0 1 0 0 1 0 0 0
DIV r2
INR
r2
0 1 0 0 0 0 R R
1
INRW wa 0 0 1 0 0 0 0 0
*
rp
0 0 P P 0 0 1 0
1 0
INX
EA
1 0 1 0 1 0 0 0
DCR r2
0 1 0 1 0 0 R R
1
DCRW wa 0 0 1 1 0 0 0 0
*
0 0 P P 0 0 1 1
rp
1 0
DCX
EA
1 0 1 0 1 0 0 1
DAA
0 1 1 0 0 0 0 1
0 1 0 0 1 0 0 0
STC
CLC
NEGA
Instruction code
B2 B3
1 0 1 0 1 1 P P
1 0
1 0 1 1
1 1 1 0
1 1 1 1
1 1 0 0
1 1 0 1
0 0 1 0 1 1 R R
1 0
0 0 1 1
0
Offset
*
0
Offset
0 0 1 0 1 0 1 1
0 0 1 0 1 0 1 0
0 0 1 1 1 0 1 0
State
Operation
B4
11 EA–rp3–1
11 EA–rp3
EA–rp3
11
EA–rp3
11
11 EA rp3
EA rp3
11
EA ← A×r2
32
EA ← EA÷r2, r2 ← The Remainder
59
r2 ← r2+1
4
(V.wa) ← (V.wa)+1
16
rp ← rp+1
7
EA ← EA+1
7
r2 ← r2–1
4
(V.wa) ← (V.wa)–1
16
rp ← rp–1
7
EA ← EA–1
7
Decimal Adjust Accumulator
4
CY ← 1
8
CY ← 0
8
A ← A+1
8
Skip
condition
No
Borrow
Borrow
No Zero
Zero
No Zero
Zero
Carry
Carry
Borrow
Borrow