SH7713 datasheet(185/904 Pages) RENESAS

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Section 3 DSP Operating Unit

Rev.1.50 Aug. 30, 2006 Page 145 of 860

REJ09B0288-0150

3.6.4

DSP Operation Instructions

Table 3.39

DSP Operation Instructions

Instruction

Instruction Code Operation

Execu-

tion

States

PMULS Se,Sf,Dg

111110**********

0100eeff0000gg00

Se*Sf ->Dg (Signed)



PADD Sx,Sy,Du

PMULS Se,Sf,Dg

111110**********

0111eeffxxyygguu

Sx + Sy ->Du Se*Sf ->Dg (Signed)

PSUB Sx,Sy,Du

PMULS Se,Sf,Dg

111110**********

0110eeffxxyygguu

Sx-Sy ->Du Se*Sf ->Dg (Signed)

PADD Sx,Sy,Dz

111110**********

10110001xxyyzzzz

Sx + Sy ->Dz

DCT PADD

Sx,Sy,Dz

111110**********

10110010xxyyzzzz

If DC=1, Sx + Sy ->Dz If DC=0, nop



DCF PADD

Sx,Sy,Dz

111110**********

10110011xxyyzzzz

If DC=0, Sx + Sy ->Dz If DC=1, nop



PSUB Sx,Sy,Dz

111110**********

10100001xxyyzzzz

Sx-Sy ->Dz

DCT PSUB

Sx,Sy,Dz

111110**********

10100010xxyyzzzz

If DC=1, Sx-Sy ->Dz If DC=0, nop



DCF PSUB

Sx,Sy,Dz

111110**********

10100011xxyyzzzz

If DC=0, Sx-Sy ->Dz If DC=1, nop



PSHA Sx,Sy,Dz

111110**********

10010001xxyyzzzz

If Sy>=0, Sx<<Sy ->Dz (arithmetic shift)

If Sy<0, Sx>>Sy ->Dz

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



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



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