MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
MACHINE INSTRUCTIONS (CONTINUED)
Parameter
Instruction code
Mnemonic
Type of
instructions
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Hexadecimal
notation
Function
TAM j
101100j j j j
2C j 1
1 (A) ← (M(DP))
(X) ← (X)EXOR(j)
j = 0 to 15
XAM j
101101j j j j
2D j 1
1 (A) ← → (M(DP))
(X) ← (X)EXOR(j)
j = 0 to 15
XAMD j
101111j j j j
2F j 1
1 (A) ← → (M(DP))
(X) ← (X)EXOR(j)
j = 0 to 15
(Y) ← (Y) – 1
XAMI j
101110j j j j
2E j 1
1 (A) ← → (M(DP))
(X) ← (X)EXOR(j)
j = 0 to 15
(Y) ← (Y) + 1
TMA j
101011j j j j
2B j 1
1 (M(DP)) ← (A)
(X) ← (X)EXOR(j)
j = 0 to 15
LA n
000111nnnn
07 n 1
1 (A) ← n
n = 0 to 15
TABP p
0 0 1 0 p5 p4 p3 p2 p1 p0 0 8 p 1
+p
Note: p is 0 to 31 for M34551M4 and p is 0 to 63 for M34551E8.
3 (SP) ← (SP) + 1
(SK(SP)) ← (PC)
(PCH) ← p
(PCL) ← (DR2–DR0, A3–A0)
(B) ← (ROM(PC))7 to 4
(A) ← (ROM(PC))3 to 0
(PC) ← (SK(SP))
(SP) ← (SP) – 1
(Note)
45