Hyundai GMS800 Instruction Manual page 66

HYUNDAI MicroElectonics
TYA
( Transfer Y-register into accumulator )

Function : A Y
Description : Transfer Y-register to the accumulator.

Flag :
Mnemonic
TYA
Example :
508 C1B2 3E64
509 C1B4 BE
510 C1B5 70FD
511 C1B7 BF
XAX
( Exchange accumulator with X-register)

Function : X A
Description : Exchange the accumulator with the X-register.

Flag :
Mnemonic
XAX
Example :
517 C1B8 C4AA
518 C1BA 1EFF
519 C1BC EE
XAY
( Exchange accumulator with Y-register )

Function : Y A
Description : Exchange the accumulator with the Y-register.

Flag :
Mnemonic
XAY
Example :
525 C1BD C4DD
526 C1BF 3ECC
527 C1C1 DE
62
OP Code
BF
LDY
LOOP2: DEC
BNE
TYA
OP Code
EE
LDA
LDX
XAX
OP Code
DE
LDA
LDY
XAY
Bytes Cycles
1 2
#100
Y
LOOP2
Bytes Cycles
1 4
#0AAH
#0FFH
Bytes Cycles
1 4
#0DDH
#0CCH