Renesas SH7709S

Rev. 5.00, 09/03, page 32 of 760

2.3.3 Instruction Formats

Table 2.3 explains the meaning of instruction formats and source and destination operands. The

meaning of the operands depends on t he operation code. The following sym bol s are used.

xxxx: Operation code

mmmm: Source register

nnnn: Destination register

iiii: Immediate data

dddd: Displacement

Table 2.3 Instruction Formats

Instruction Format Source

Operand Destination

Operand Instruction

Example

0 format

xxxx xxxx xxxxxxxx

15 0

——NOP

n format

xxxx xxxx xxxxnnnn

15 0

— nnnn: register

direct MOVT Rn

Control register or

system re gister nnnn: register

direct STS

MACH,Rn

Control register or

system re gister nnnn: register

indirect with

pre-decrement

STC.L

SR,@–Rn

m format

xxxx

mmmm

xxxx xxxx

15 0

mmmm: register

direct Control register

or system

LDC

Rm,SR

mmmm: register

indirect with post-

increment

Control register

or system

LDC.L

@Rm+,SR

mmmm: register

indirect —JMP@Rm

mmmm: PC-

relative using R m —BRAFRm