Epson S1C6200, Core Cpu Manual

Page: 85 / 98

Source Format:
Operation:
OP-Code:
Type:
Clock Cycles:
Flag:
Description:
Example:
Source Format:
Operation:
OP-Code:
Type:
Clock Cycles:
Flag:
Description:
Example:
MSB LSB
MSB LSB
C –
Z –
D –
I –
C –
Z –
D –
I –
S1C6200/6200A CORE CPU MANUAL
EPSON
79
3 INSTRUCTION SET
SDF
Set decimal flag
SDF
D
←
1
1 1 1 1 0 1 0 0 0 1 0 0 F44H
VI
7
Not affected
Not affected
Set
Not affected
Sets the D (decimal) flag.
SDF
D flag 0 1
SET F,i
Set flags using immediate data i
SET F,i
F
←
F
∨
i
3
to i
0
1 1 1 1 0 1 0 0 i
3
i
2
i
1
i
0
F40H to F4FH
IV
7
Set if i
0
is 1; otherwise, not affected.
Set if i
1
is 1; otherwise, not affected.
Set if i
2
is 1; otherwise, not affected.
Set if i
3
is 1; otherwise, not affected.
Performs a logical OR operation between immediate data i and the contents of the
flags. The results are stored in each respective flag.
SET F,0DH
Flags (C,Z,D,I) 0011 1111