Data Transfer Instructions - Hitachi H8/3637 Hardware Manual

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*
MOV B/W
POP W
PUSH W
Note: * Size: Operand size
B: Byte
W: Word
Certain precautions are required in data access. See 2.9.1, Notes on Data Access, for details.
28
Function
(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 byte or 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.
@SP+ → Rn
Pops a 16-bit general register from the stack. Equivalent to MOV.W
@SP+, Rn.
Rn → @–SP
Pushes a 16-bit general register onto the stack. Equivalent to
MOV.W Rn, @–SP.