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PD75P3116
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Data Sheet U11369EJ3V0DS
7. INSTRUCTION SET
(1) Representation and coding formats for operands
In the instruction’s operand area, use the following coding format to describe operands corresponding to the
instruction’s operand representations (for further details, refer to the
RA75X Assembler Package Language User’s
Manual (U12385E)
). When there are several codes, select and use just one. Codes that consist of uppercase letters and
+ or – symbols are keywords that should be entered as they are.
For immediate data, enter an appropriate numerical value or label.
Enter register flag symbols as label descriptors instead of mem, fmem, pmem, bit, etc. (for further details, refer to the
User’s Manual
). The number of labels that can be entered for fmem and pmem are restricted.
Representation
Coding Format
reg
X, A, B, C, D, E, H, L
reg1
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
Note
bit
2-bit immediate data or label
fmem
FB0H to FBFH, FF0H to FFFH immediate data or label
pmem
FC0H to FFFH immediate data or label
addr
0000H to 3FFFH immediate data or label
addr1
0000H to 3FFFH immediate data or label (Mk II mode only)
caddr
12-bit immediate data or label
faddr
11-bit immediate data or label
taddr
20H to 7FH immediate data (however, bit 0 = 0) or label
PORTn
Port 0 to Port 3, Port 5, Port 6, Port 8, Port 9
IE
×××
IEBT, IECSI, IET0 to IET2, IE0 to IE2, IE4, IEW
RBn
RB0 to RB3
MBn
MB0, MB1, MB15
Note
When processing 8-bit data, only even-numbered addresses can be specified.
