Block Data Transfer Instruction - Hitachi H8/3637 Hardware Manual

15
15
15
op
Legend:
op: Operation field
rn: Register field
IMM: Immediate data
2.5.8

Block Data Transfer Instruction

Table 2.11 describes the block data transfer instruction. Figure 2.10 shows its object code format.
Table 2.11 Block Data Transfer Instruction
Instruction Size
EEPMOV —
Certain precautions are required in using the EEPMOV instruction. See 2.9.3, Notes on Use of the
EEPMOV Instruction, for details.
40
8 7
op
8 7
op
8 7
Figure 2.9 System Control Instruction Codes
Function
If R4L ≠ 0 then
repeat @R5+ → @R6+, R4L – 1 → R4L
until R4L = 0
else next;
Block transfer instruction. Transfers the number of bytes specified by
R4L, from locations starting at the address specified by R5, to
locations starting at the address specified by R6. On completion of
the transfer, the next instruction is executed.
0
0
rn
0
IMM
RTE, SLEEP, NOP
LDC, STC (Rn)
ANDC, ORC,
XORC, LDC (#xx:8)