Rrc r, Rst f,i, Rotate r-register right with carry – Epson S1C6200 User Manual
Page 81: Reset flags using immediate data i
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
75
3 INSTRUCTION SET
RRC r
Rotate r-register right with carry
RRC r
d
3
←
C, d
2
←
d
3
, d
1
←
d
2
, d
0
←
d
1
, C
←
d
0
1
1
1
0
1
0
0
0
1
1 r
1
r
0
E8CH to E8FH
V
5
Set when the low-order bit of the r-register is 1; otherwise, reset.
Not affected
Not affected
Not affected
Shifts the contents of the r-register one bit to the right. The low-order bit is shifted
into the carry flag and the carry bit becomes the high-order bit of the r-register.
RRC MY
Memory (MY)
1010
1101
C flag
1
0
RST F,i
Reset flags using immediate data i
RST F,i
F
←
F
∧
i
3
to i
0
1
1
1
1
0
1
0
1
i
3
i
2
i
1
i
0
F50H to F5FH
IV
7
Reset if i
0
is zero; otherwise, not affected.
Reset if i
1
is zero; otherwise, not affected.
Reset if i
2
is zero; otherwise, not affected.
Reset if i
3
is zero; otherwise, not affected.
Performs a logical AND operation between immediate data i and the contents of
the flags. The result is stored in each respective flag.
RST F,2
Flags (I,D,Z,C)
1010
0010
Source Format:
Operation:
OP-Code:
Type:
Clock Cycles:
Flag:
Description:
Example:
d
3
d
2
d
1
d
0
r-register
C
C
d
3
d
2
d
1
r-register
C
C
d
0