Datasheet

56
2.3.3 Instruction Format
Table 2.9 lists the instruction formats for the source operand and the destination operand. The
meaning of the operand depends on the instruction code. The symbols are used as follows:
xxxx: Instruction code
mmmm: Source register
nnnn: Destination register
iiii: Immediate data
dddd: Displacement
Table 2.9 Instruction Formats
Instruction Formats
Source
Operand
Destination
Operand Example
0 format
xxxx xxxx xxxxxxxx
15 0
—— NOP
n format nnnn: Direct
register
MOVT Rn
xxxx xxxx xxxxnnnn
15 0 Control register
or system
register
nnnn: Direct
register
STS MACH,Rn
Control register
or system
register
nnnn: Indirect pre-
decrement register
STC.L SR,@-Rn
m format mmmm: Direct
register
Control register or
system register
LDC Rm,SR
xxxx
mmmm
xxxx xxxx
15 0 mmmm: Indirect
post-increment
register
Control register or
system register
LDC.L @Rm+,SR
mmmm: Direct
register
JMP @Rm
mmmm: PC
relative using Rm
BRAF Rm