upd75112 Renesas Electronics Corporation., upd75112 Datasheet - Page 30

• Manufacturer Part Number: upd75112
• Description: 4-bit Single Chip-microcomputer
• Manufacturer: Renesas Electronics Corporation.

30
9. Instruction Set
(1) Operand identifier and description method
In the operand column of each instruction, describe the
corresponding operand in accordance with the de-
scription method for the operand identifier of the in-
struction (refer to the "RA75X Assembler Package User's
Manual Language Volume" (EEU-730) for details). If
more than one description method is available, select
one of them. Capital alphabetic letters, plus and minus
signs are key words. Describe them as they are.
In the case of immediate data, describe appropriate
numeric values or labels.
Symbols of various registers and flags can be de-
scribed as labels instead of mem, fmem, pmem, bit, etc.
(Refer to the " PD751
922)" for details). Labels which can be described are
limited for fmem and pmem.
PD75112, 75116
Series User’s Manual (IEM-
Identifier
reg
reg1
rp
rp1
rp2
rp’
rp’1
rpa
rpa1
n4
n8
mem
bit
fmem
pmem
addr
caddr
faddr
taddr
PORTn
IE
RBn
MBn
*: In the case of 8-bit data processing, only even address
can be described for “mem”.
X, A, B, C, D, E, H, L
X, B, C, D, E, H, L
XA, BC, DE, HL
BC, DE, HL
BC, DE
XA, BC, DE, HL, XA’, BC’, DE’, HL’
BC, DE, HL, XA’, BC’, DE’, HL’
HL, HL+, HL-, DE, DL
DE, DL
4-bit immediate data or label
8-bit immediate data or label
8-bit immediate data or label*
2-bit immediate data or label
FB0H to FBFH and FF0H to FFFH immediate data
or labels
FC0H to FFFH immediate data or labels
12-bit immediate data or label
11-bit immediate data or label
20H to 7FH immediate data (bit = 0) or labels
PORT0 to PORT9, PORT12 to PORT14
IEBT, IESIO, IET0, IET1, IE0 to IE4
RB0 to RB3
MB0, MB1, MB15
PD75112
PD75116
0000H to 2F7FH immediate data or
labels
0000H to 3F7FH immediate data or
labels
Description Method