Epson 6200A Core Cpu Manual page 59

Core cpu cmos 4-bit single chip microcomputer
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LD r,XH
Source Format:
Operation:
OP-Code:
Type:
Clock Cycles:
Flag:
Description:
Example:
LD r,XL
Source Format:
Operation:
OP-Code:
Type:
Clock Cycles:
Flag:
Description:
Example:
S1C6200/6200A CORE CPU MANUAL
Load XH into r-register
LD r,XH
r
XH
1 1 1 0 1 0 1 0 0 1 r
MSB
V
5
C –
Not affected
Z –
Not affected
D –
Not affected
I –
Not affected
Loads the four high-order bits of register X into the r-register.
LD B,XH
XH register
1010
B register
0010
Memory (MX)
0000
Load XL into r-register
LD r,XL
r
XL
1 1 1 0 1 0 1 0 1 0 r
MSB
V
5
C –
Not affected
Z –
Not affected
D –
Not affected
I –
Not affected
Loads the four low-order bits of register X into the r-register.
LD MY,XL
XL register
0000
A register
1101
Memory (MY)
0001
r
EA4H to EA7H
1
0
LSB
LD MX,XH
1010
1010
1010
1010
0000
1010
r
EA8H to EABH
1
0
LSB
LD A,XL
0000
0000
1101
0000
0000
0000
EPSON
3 INSTRUCTION SET
53

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