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CHAPTER 28 INSTRUCTION OPERATION
User’s Manual U12697EJ3V0UM
(5) Number of bytes in instruction that has mem in operand
mem Mode
Register Indirect Addressing
Based Addressing
Indexed Addressing
Based Indexed Addressing
No. of bytes
1
2
Note
3
5
2
Note
This becomes a 1-byte instruction only when [TDE], [WHL], [TDE+], [TDE–], [WHL+], or [WHL–] is described
in mem in the MOV instruction.
(6) Number of bytes in instruction that has saddr, saddrp, r, or rp in operand
The number of bytes in an instruction that has saddr, saddrp, r, or rp in the operand is described in two parts
divided by a slash (/). The following table shows the number of bytes in each one.
Description
No. of Bytes on Left Side
No. of Bytes on Right Side
saddr
saddr2
saddr1
saddrp
saddrp2
saddrp1
r
r1
r2
rp
rp1
rp2
(7) Descriptions of instructions with mem in operand and string instructions
The TDE, WHL, VVP, and UUP (24-bit registers) operands can be described by DE, HL, VP, and UP. However,
when DE, HL, VP, and UP are described, they are handled as TDE, WHL, VVP, and UUP (24-bit registers).
