µPD703100A-33, 703100A-40, 703101A-33, 703102A-33
Table 15-5. Symbols Used in Flag Operations
Identifier
(Blank)
Description
No change
0
Clear to 0
×
R
Set or cleared according to the results
Previously saved values are restored
Table 15-6. Condition Codes
Condition
Condition Code
(cccc)
Condition Formula
Description
Name (cond)
0000
1000
0001
V
OV = 1
OV = 0
CY = 1
Overflow
No overflow
Carry
NV
C/L
Lower (Less than)
1001
0010
1010
NC/NL
Z/E
CY = 0
Z = 1
No carry
Not lower (Greater than or equal)
Zero
Equal
NZ/NE
Z = 0
Not zero
Not equal
0011
1011
0100
1100
0101
1101
0110
1110
0111
1111
NH
H
(CY or Z) = 1
(CY or Z) = 0
S = 1
Not higher (Less than or equal)
Higher (Greater than)
Negative
N
P
S = 0
Positive
T
–
Always (unconditional)
Saturated
SA
LT
GE
LE
GT
SAT = 1
(S xor OV) = 1
Less than signed
(S xor OV) = 0
Greater than or equal signed
Less than or equal signed
Greater than signed
((S xor OV) or Z) = 1
((S xor OV) or Z) = 0
59
Preliminary Data Sheet U14168EJ2V0DS00
NEC [ NEC ]
