UPD75216ACW

Manufacturer Part NumberUPD75216ACW
Description4-BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC
UPD75216ACW datasheet
 


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Page 34/72:

INSTRUCTION SET

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9. INSTRUCTION SET
(1)
Operand identifier and description
Enter an operand in the operand column of each instruction using the description method relating to the
operand identifier of the instruction (For details, refer to RA75X Assembler Package User’s Manual Language
Volume (EEU-730)). If more than one description method is available, select one. Capital alphabetic letters, plus
and minus signs are keywords. Describe them as they are.
In the case of immediate data, describe appropriate numerical values or labels.
Symbols can be described as labels in place of mem, fmem, pmem, bit, etc. (For details, refer to PD75216A
User’s Manual (IEM-988)). Available labels are limited for fmem and pmem.
Identifier
reg
X, A, B, C, D, E, H, L
reg 1
X, B, C, D, E, H, L
rp
XA, BC, DE, HL
rp1
BC, DE, HL
rp2
BC, DE
rp’
XA, BC, DE, HL, XA’, BC’, DE’, HL’
rp’1
BC, DE, HL, XA’, BC’, DE’, HL’
rpa
HL, HL+, HL-, DE, DL
rpa1
DE, DL
n4
4-bit immediate data or label
n8
8-bit immediate data or label
mem
8-bit immediate data or label*
bit
2-bit immediate data or label
fmem
FB0H to FBFH and FF0H to FFFH immediate data or labels
pmem
FC0H to FFFH immediate data or labels
addr
0000H to 3F7FH immediate data or labels
caddr
12-bit immediate data or label
faddr
11-bit immediate data or label
taddr
20H to 7FH immediate data (bit0 = 0) or label
PORTn
PORT0 to PORT6
IE
IEBT, IESIO, IET0, IETPG, IE0, IE1, IEKS, IEW, IE4
RBn
RB0 to RB3
MBn
MB0, MB1, MB15
* For 8-bit data processing, only even addresses can be specified.
34
Description Method
PD75216A