Hyundai GMS800 Instruction Manual page 24

HYUNDAI MicroElectonics
AND
( Logical AND )

Function : A ( A )
Description : Logical AND of the accumulator and the contents of memory( or immediate data).
The result is left in the accumulator.

Flag :
Mnemonic
AND #imm
AND dp
AND dp + X
AND !abs
AND !abs + Y
AND [ dp + X ]
AND [ dp ] + Y
AND { X }
Example :
85 F6D1 C531
86 F6D3 84FB
87 F6D5 E531
AND1
( Bit logical AND )

Function : C ( C )
Description : Logical AND of the carry flag and the specified bit of memory.
The results is left in the carry flag.

Flag :
Mnemonic
AND1 M.bit
* The bit4 of 3rd byte is set to "0".
Example :
64
65
66
67 F046 FF
68 F047 FF
69 F048 8B2320
20

( M ) or A ( A )
OP Code
84
85
86
87
95
96
97
94
LDA OMODE
AND #11111011B
STA OMODE
( M.bit )
OP Code
8B
KEYONF EQU
;
;
NOP
NOP
AND1
#imm
Bytes Cycles
2 2
2 3
2 4
3 4
3 5
2 6
2 6
1 3
;
;
;
Bytes Cycles
3 4
1,23H
KEYONF ; C ^ 23H.1 -> C