Hyundai GMS800 Instruction Manual page 55

ROL
( Rotate left through carry )
Function :
C
Description : Rotate the accumulator or the contents of memory to the left side by 1bit. Move the carry flag
to bit0, and bit7 enter into the carry flag.

Flag :
Mnemonic
ROL
ROL
ROL
ROL
Example :
72
73 F054 A0
74 F055 2931
75 F057 2930
ROR
( Rotate right through carry )
Function :

Description : Rotate the accumulator or the contents of memory to the right side by 1bit. Move the carry
flag to bit7, and bit0 enter into the carry flag.

Flag :
Mnemonic
ROR A
ROR dp
ROR dp + X
ROR !abs
Example :
282 E13A C908
283 E13C 68
284 E13D BE
285 E13E F004
286 E140 50FA
287 E142 E929
7 6 5 4











OP Code
A
28
dp
29
dp + X
39
!abs
38
SETC
ROL
ROL
7 6 5 4 3 2
        
OP Code
68
69
79
78
LDY
LP: ROR
DEC
BEQ
BCC
STY
3 2 1 0
Bytes Cycles
1 2
2 4
2 5
3 5
; ROTATE 16 BIT DATA SHIFT LEFT
31H ; SHIFT LEFT 1 BIT
30H
1 0 C
Bytes Cycles
1 2
2 4
2 5
3 5
8
A ; SHIFT ROTATE RIGHT WITH CARRY
Y
$+6 ; TEST 8 TIMES ?
LP
POINTER
Instruction Set
51