Ld y,e, Ld yh,r, Load immediate data e into y-register – Epson S1C6200 User Manual
Page 65: Load r-register into yh
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
59
3 INSTRUCTION SET
LD Y,e
Load immediate data e into Y-register
LD Y,e
YH
←
e
7
to e
4
, YL
←
e
3
to e
0
1
0
0
0 e
7
e
6
e
5
e
4
e
3
e
2
e
1
e
0
800H to 8FFH
I
5
Not affected
Not affected
Not affected
Not affected
Loads 8-bit immediate data e into register Y.
LD Y,E1H
YH register
0001
1110
YL register
1100
0001
LD YH,r
Load r-register into YH
LD YH,r
YH
←
r
1
1
1
0
1
0
0
1
0
1
r
1
r
0
E94H to E97H
V
5
Not affected
Not affected
Not affected
Not affected
Loads the contents of the r-register into the four high-order bits of register Y.
LD YH,B
LD YH,MX
YH register
0000
0110
0101
B register
0110
0110
0110
Memory (MX)
0101
0101
0101