HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 143

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

3.4.4
Memory data formats that can be used in the DSP instructions are classified into word and
longword. An address error will occur if word data starting from an address other than 2n is
accessed by MOVS.W instruction or longword data starting from an address other than 4n is
accessed by MOVS.L, LDS.L, or STS.L instruction. In such cases, the data accessed cannot be
guaranteed
An address error will not occur if word data starting from an address other than 2n is accessed by
the MOVX.W or MOVY.W instruction. When using the MOVX.W or MOVY.W instruction, an
address must be specified on the boundary 2n. If an address is specified other than 2n, the data
accessed cannot be guaranteed.
3.4.5
The format of double data transfer instructions is shown in tables 3.12, and that of single data
transfer instructions in table 3.13.
Table 3.12 Double Data Transfer Instruction Formats
Note: Ax: 0 = R4, 1 = R5
Type
X memory
data
transfer
Y memory
data
transfer
Ay: 0 = R6, 1 = R7
Dx: 0 = X0, 1 = X1
Dy: 0 = Y0, 1 = Y1
Da: 0 = A0, 1 = A1
Memory Data Formats
Instruction Formats of Double and Single Data Transfer Instructions
Mnemonic
NOPX
MOVX.W @Ax,Dx
MOVX.W @Ax+,Dx
MOVX.W @Ax+Ix,Dx
MOVX.W Da,@Ax
MOVX.W Da,@Ax+
MOVX.W Da,@Ax+Ix
NOPY
MOVY.W @Ay,Dy
MOVY.W @Ay+,Dy
MOVY.W @Ay+Iy,Dy
MOVY.W Da,@Ay
MOVY.W Da,@Ay+
MOVY.W Da,@Ay+Iy
15 14 13 12 11 10 9
1
1
1
1
1
1
1
1
0
0
0
0
0
Ax
8
0
Ay
Rev. 1.00, 02/04, page 105 of 804
7
0
Dx
Da
6
0
Dy
Da
5
0
0
1
4
0
0
1
3
0
0
1
1
0
1
1
2
0
1
0
1
1
0
1
1
0
0
1
1
0
1
1
0
0
1
0
1
1
0
1