SH7615 Datasheet, PDF (131/925 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH
RISC engine Family/SH7600 Series

2.5.3 DSP Operation Instruction Set
DSP operation instructions are digital signal processing instructions processed by the DSP unit.
These instructions use 32-bit instruction codes, and multiple instructions are executed in parallel.
The instruction codes are divided into an A field and a B field; parallel data transfer instructions
are designated in the A field, and single or double data operation instructions are designated in the
B field. Instructions can be independently designated and execution can also be carried out
independently. A parallel data transfer instruction designated in the A field is exactly the same as a
double data transfer instruction.
The B field data operation instructions are divided into three groups: double data operation
instructions, conditional single data operation instructions, and unconditional single data operation
instructions. Table 2.32 lists the instruction formats of the DSP operation instructions. Each of the
operands can be independently selected from the DSP registers. Table 2.33 shows the
correspondence between the DSP operation instruction operands and registers.
Table 2.32 DSP Operation Instruction Formats
Classification
Double data operation instructions
(6 operands)
Conditional single data
operation instructions
3 operands
2 operands
1 operand
Unconditional single data 3 operands
operation instructions
2 operands
1 operand
Instruction Forms
ALUop. Sx, Sy, Du
MLTop. Se, Sf, Dg
ALUop. Sx, Sy, Dz
DCT ALUop. Sx, Sy, Dz
DCF ALUop. Sx, Sy, Dz
ALUop. Sx, Dz
DCT ALUop. Sx, Dz
DCF ALUop. Sx, Dz
ALUop. Sy, Dz
DCT ALUop. Sy, Dz
DCF ALUop. Sy, Dz
ALUop. Dz
DCT ALUop. Dz
DCF ALUop. Dz
ALUop. Sx, Sy, Du
MLTop. Se, Sf, Dg
ALUop. Sx, Dz
ALUop. Sy, Dz
ALUop. Sx, Sy
ALUop. Dz
Instruction
PADD PMULS,
PSUB PMULS
PADD, PAND, POR,
PSHA, PSHL, PSUB,
PXOR
PCOPY, PDEC,
PDMSB, PINC,
PLDS, PSTS, PNEG
PCLR, PSHA #imm,
PSHL #imm
PADDC, PSUBC,
PMULS
PCMP, PABS, PRND
PSHA #imm,
PSHL #imm
Rev. 2.00, 03/05, page 93 of 884