HD404629R Datasheet, PDF (133/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

Table 37 RAM Register Instructions (cont)
Operation
Load memory
from A,
increment Y
Mnemonic Operation Code
LMAIY
000101 0000
LMAIYX
000101 0001
Load memory
from A,
decrement Y
LMADY
LMADYX
001101 0000
001101 0001
Exchange
memory
and A
XMA
001000 0000
XMAX
XMAY
XMAXY
001000 0001
001000 0010
001000 0011
Exchange
memory
and A
Exchange
memory
and B
XMAD d
XMB
011000 0000
d₉ d₈ d₇ d₆ d₅ d₄ d₃ d₂ d₁ d₀
001100 0000
XMBX
XMBY
XMBXY
001100 0001
001100 0010
001100 0011
HD404629R Series
Function
A → M,
Y+1→Y
Words/
Status Cycles
NZ 1/1
A → M,
Y + 1 → Y,
X ↔ SPX
A → M,
Y–1→Y
NB 1/1
A → M,
Y – 1 → Y,
X ↔ SPX
M↔A
1/1
M ↔ A,
X ↔ SPX
M ↔ A,
Y ↔ SPY
M ↔ A,
X ↔ SPX,
Y ↔ SPY
M→A
2/2
M↔B
1/1
M ↔ B,
X ↔ SPX
M ↔ B,
Y ↔ SPY
M ↔ B,
X ↔ SPX,
Y ↔ SPY
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