HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 176

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 3 DSP Operating Unit
Tables 3.14 and 3.15 show the data type of registers used in DSP instructions. Some instructions
cannot use some registers shown in the tables because of instruction code limitations. For
example, PMULS can use A1 as the source register, but cannot use A0. These tables ignore details
of register selectability.
Table 3.14 Destination Register in DSP Instructions
Rev. 3.00 Jan. 18, 2008 Page 114 of 1458
REJ09B0033-0300
Registers
A0, A1
A0G, A1G
X0, X1
Y0, Y1
M0, M1
Instructions
DSP
operation
Data
transfer
Data
transfer
DSP
operation
Data
transfer
Fixed-point, PSHA,
PMULS
Integer, PDMSB
Logical, PSHL
MOVS.W
MOVS.L
MOVS.W
MOVS.L
Fixed-point, PSHA,
PMULS
Integer, logical,
PDMSB, PSHL
MOVX/Y.W, MOVS.W
MOVS.L
39
Sign-extended
Sign-extended 24-bit result
Cleared
Sign-extended 16-bit data
Sign-extended
Data
Data
Guard Bits
32
31
16-bit result
No update
No update
16-bit result
16-bit result
Register Bits
40-bit result
32-bit result
32-bit data
32-bit data
16
15
Cleared
Cleared
Cleared
Cleared
Cleared
0