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GMS81C50 Datasheet, PDF (91/99 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCONTROLLERS
Appendix A. GMS800 Series Instruction
NO.
MNENONIC
45 EOR #imm
46 EOR dp
47 EOR dp + X
48 EOR !abs
49 EOR !abs + Y
50 EOR [ dp + X]
51 EOR [dp] + Y
52 EOR {X}
53 INC A
54 INC dp
55 INC dp + X
56 INC !abs
57 INC X
58 INC Y
59 LSR A
60 LSR dp
61 LSR dp + X
62 LSR !abs
63 MUL
64 OR #imm
65 OR dp
66 OR dp + X
67 OR !abs
68 OR !abs + Y
69 OR [dp +X}
70 OR [dp] + Y
71 OR {X}
72 ROL A
73 ROL dp
74 ROL dp + X
75 ROL !abs
76 ROR A
77 ROR dp
78 ROR dp + X
79 ROR !abs
80 SBC #imm
81 SBC dp
82 SBC dp + X
83 SBC !abs
84 SBC !abs + Y
85 SBC [dp + X]
86 SBC [dp] + Y
87 SBC {X}
88 TST dp
89 XCN
OP
CODE
A4
A5
A6
A7
B5
96
97
94
88
89
99
98
8F
9E
48
49
59
58
5B
64
65
66
67
75
76
77
74
28
29
39
38
68
69
79
78
24
25
26
27
35
36
37
34
4C
CE
BYTE
NO.
2
2
2
3
3
2
2
1
1
2
2
3
1
1
1
2
2
3
1
2
2
2
3
3
2
2
1
1
2
2
3
1
2
2
3
2
2
2
3
3
2
2
1
2
1
CYCLE
NO
2
3
4
4
5
6
6
3
2
4
5
5
2
2
2
4
5
5
9
2
3
4
4
5
6
6
3
2
4
5
5
2
4
5
5
2
3
4
4
5
6
6
3
3
5
Exclusive OR
A ← A ⊕ (M)
OPERATION
Increment
(M) ← (M) + 1
Logical shift right
76543210 C
"0"→ → → → → → → → → →
Multiply : YA ← Y x A
Logical OR
A ← A V (M)
Rotate left through carry
C 76543210
←←←←←←←←←
Rotate right through carry
76543210 C
→→→→→→→→→
Substract with carry
A ← A - (M) - ~(C)
Test memory contents for negative or zero : (dp) - 00H
Exchange nibbles within the accumulator:
A7 ~ A4 f A3 ~ A0
FLAG
NVGBHIZC
N-----Z-
N - - - - - ZC
N-----Z-
N - - - - - ZC
N-----Z-
N-----Z-
N - - - - - ZC
N - - - - - ZC
NV - - HZC
N-----Z-
N-----Z-
A-8