Epson 6200A - Manual (Page 52)

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 –
46 EPSON S1C6200/6200A CORE CPU MANUAL
3 INSTRUCTION SET
JP Z,s
Jump if zero
JP Z,s
PCB
←
NBP, PCP
←
NPP, PCS
←
s 7 to s 0 if Z = 1
0 1 1 0 s 7 s 6 s 5 s 4 s 3 s 2 s 1 s 0 600H to 6FFH
I
5
Not affected
Not affected
Not affected
Not affected
Jumps to the destination address specified by the 8-bit operand when the zero flag
is set.
SUB A,B PSET 1BH JP Z,10H
PCB 0 0 0 1
NBP 0 0 1 1
PCP 0101 0101 0101 1011
NPP 0001 0001 1011 1011
PCS 0000 0010 0000 0011 0000 0100 0001 0000
A register 0110 0000 0000 0000
B register 0110 0110 0110 0110
Z flag 0 1 1 1
LBPX MX,e Load immediate data e to memory, and increment X by 2
LBPX MX,e
M(X)
←
e
3
to e
0
, M(X+1)
←
e
7
to e
4
, X
←
X + 2
1 0 0 1 e
7
e
6
e
5
e
4
e
3
e
2
e
1
e
0
900H to 9FFH
I
5
Not affected
Not affected
Not affected
Not affected
Stores 8-bit immediate data e in two, consecutive 4-bit locations in data memory.
The X-register is incremented by 2. An overflow in X does not affect the flags.
LBPX MX,18H LBPX MX,36H
X register 0001 1110 0010 0000 0010 0010
Memory (1EH) 0010 1000 1000
Memory (1FH) 1111 0001 0001
Memory (20H) 0000 0000 0110
Memory (21H) 0111 0111 0011