2.5.1
Data Transfer Instructions
Table 2-4 describes the data transfer instructions. Figure 2-5 shows their object code formats.
Table 2-4 Data Transfer Instructions
Instruction
Size*
Function
MOV
B/W
(EAs) → Rd, Rs → (Ead)
Moves data between two general registers or between a general
register and memory, or moves immediate data to a general register.
The Rn, @Rn, @(d:16, Rn), @aa:16, #xx:16, @–Rn, and @Rn+
addressing modes are available for word data. The @aa:8
addressing mode is available for byte data only.
The @–R7 and @R7+ modes require word operands. Do not
specify byte size for these two modes.
POP
W
W
@SP+ → Rn
Pops a 16-bit general register from the stack. Equivalent to MOV.W
@SP+, Rn.
PUSH
Rn → @–SP
Pushes a 16-bit general register onto the stack. Equivalent to
MOV.W Rn, @–SP.
Notes: * Size:Operand size
B: Byte
W: Word
Certain precautions are required in data access. See 2.9.1, Notes on Data Access, for details.
30
ETC [ ETC ]
