E202075_HD404889 Datasheet, PDF (171/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Table 34 RAM Register Instructions
Operation
Load A from memory
Load A from memory
Load B from memory
Load memory from A
Load memory from A
Load memory from A,
increment Y
Load memory from A,
decrement Y
Mnemonic
LAM
LAMX
LAMY
LAMXY
LAMD d
LBM
LBMX
LBMY
LBMXY
LMA
LMAX
LMAY
LMAXY
LMAD d
LMAIY
LMAIYX
LMADY
LMADYX
Operation Code
0 0 1 0 0 10 0 0 0
0 0 1 0 0 10 0 0 1
0 0 1 0 0 10 0 1 0
0 0 1 0 0 10 0 1 1
0 1 1 0 0 10 0 0 0
d₉ d₈ d₇ d₆ d₅ d₄ d₃ d₂ d₁ d₀
0 0 0 1 0 00 0 0 0
0 0 0 1 0 00 0 0 1
0 0 0 1 0 00 0 1 0
0 0 0 1 0 00 0 1 1
0 0 1 0 0 10 1 0 0
0 0 1 0 0 10 1 0 1
0 0 1 0 0 10 1 1 0
0 0 1 0 0 10 1 1 1
0 1 1 0 0 10 1 0 0
d₉ d₈ d₇ d₆ d₅ d₄ d₃ d₂ d₁ d₀
0 0 0 1 0 10 0 0 0
0 0 0 1 0 10 0 0 1
0 0 1 1 0 10 0 0 0
0 0 1 1 0 10 0 0 1
Function
M→A
M→A
X ↔ SPX
M→A
Y ↔ SPY
M→A
X ↔ SPX, Y ↔ SPY
M→A
M→B
M→B
X ↔ SPX
M→B
Y ↔ SPY
M→B
X ↔ SPX, Y ↔ SPY
A→M
A→M
X ↔ SPX
A→M
Y ↔ SPY
A→M
X ↔ SPX, Y ↔ SPY
A→M
A → M, Y + 1 → Y
A → M, Y + 1 → Y
X ↔ SPX
A → M, Y – 1 → Y
A → M, Y – 1 → Y
X ↔ SPX
Words/
Status Cycles
1/1
2/2
1/1
1/1
2/2
NZ
1/1
NB
1/1
169