UPD77113A Datasheet, PDF (31/62 Pages) NEC – MOS INTEGRATED CIRCUIT

µPD77113A, 77114
9.2 Instruction Set and Operation
An operation is written in the operation field for each instruction in accordance with the operation representation
format of that instruction. If two or more parameters can be written, select one of them.
(a) Representation formats and selectable registers
The following table shows the representation formats and selectable registers.
Representation Format
r0, r0′, r0″
rI, rI′
rh, rh′
re
reh
dp
dn
dm
dpx
dpy
dpx_mod
dpy_mod
dp_imm
*xxx
Selectable Register
R0 - R7
R0L - R7L
R0H - R7H
R0E - R7E
R0EH - R7EH
DP0 - DP7
DN0 - DN7
DMX, DMY
DP0 - DP3
DP4 - DP7
DPn, DPn++, DPn−−, DPn##, DPn%%, !DPn## (n = 0 - 3)
DPn, DPn++, DPn−−, DPn##, DPn%%, !DPn## (n = 4 - 7)
DPn##imm (n = 0 - 7)
Contents of memory with address xxx
<Example> If the contents of the DP0 register are 1000, *DP0 indicates the contents of
address 1000 of the memory.
Data Sheet U14373EJ3V0DS
31