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SH7721 Datasheet(PDF) 216 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 216 Page - Renesas Technology Corp

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Section 3 DSP Operating Unit
Rev. 3.00 Jan. 18, 2008 Page 154 of 1458
REJ09B0033-0300
3.6.4
DSP Operation Instructions
Table 3.39
DSP Operation Instructions
Instruction
Instruction Code Operation
Execution
States
DC
PMULS Se,Sf, Dg 111110**********
0100eeff0000gg00
Se*Sf
→ Dg (Signed)
1
–
PADD Sx,Sy,Du
PMULS Se,Sf,Dg
111110**********
0111eeffxxyygguu
Sx + Sy
→ Du Se*Sf → Dg (Signed)
1
*
PSUB Sx,Sy,Du
PMULS Se,Sf,Dg
111110**********
0110eeffxxyygguu
Sy-Sy
→ Du Se*Sf → Dg (Signed)
1
*
PADD Sx,Sy,Dz
111110**********
10110001xxyyzzzz
Sx + Sy
→ Dz
1
*
DCT
PADD Sx,Sy,Dz
111110**********
10110010xxyyzzzz
If DC = 1, Sx + Sy
→ Dz
If DC = 0, nop
1
–
DCF
PADD Sx,Sy,Dz
111110**********
10110011xxyyzzzz
If DC = 0, Sx + Sy
→ Dz
If DC = 1, nop
1
–
PSUB Sx,Sy,Dz
111110**********
10100001xxyyzzzz
Sx-Sy
→ Dz
1
*
DCT
PSUB Sx,Sy,Dz
111110**********
10100010xxyyzzzz
If DC = 1, Sx-Sy
→ Dz
If DC = 0, nop
1
–
DCF
PSUB Sx,Sy,Dz
111110**********
10100011xxyyzzzz
If DC = 0, Sx-Sy
→ Dz
If DC = 1, nop
1
–
PSHA Sx,Sy,Dz
111110**********
10010001xxyyzzzz
If Sy >= 0, Sx<<Sy
→ Dz (arithmetic shift)
If Sy < 0, Sx>>Sy
→ Dz
1
*
DCT
PSHA Sx,Sy,Dz
111110**********
10010010xxyyzzzz
If DC = 1 & Sy >= 0, Sx<<Sy
→ Dz
(arithmetic shift)
If DC=1 & Sy<0, Sx>>Sy
→ Dz If DC=0, nop
1
–
DCF
PSHA Sx,Sy,Dz
111110**********
10010011xxyyzzzz
If DC = 0 & Sy >= 0, Sx<<Sy
→ Dz
(arithmetic shift)
If DC = 0 & Sy < 0, Sx>>Sy
→ Dz
If DC = 1, nop
1
–
PSHL Sx,Sy,Dz
111110**********
10000001xxyyzzzz
If Sy >= 0, Sx<<Sy
→ Dz (logical shift)
If Sy < 0, Sx>>Sy
→ Dz
1
*



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