SH7713 datasheet(159/904 Pages) RENESAS

부품명	SH7713

상세설명	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

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제조업체	RENESAS [Renesas Technology Corp]

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Section 3 DSP Operating Unit

Rev.1.50 Aug. 30, 2006 Page 119 of 860

REJ09B0288-0150

Table 3.21

Variation of ALU Fixed-Point Operations

Mnemonic

Function

Source 1

Source 2

Destination

PADD

Addition

Dz (Du)

PSUB

Subtraction

Dz (Du)

PADDC

Addition with carry

PSUBC

Subtraction with borrow

PCMP

Comparison

—

All 0

PCOPY

Data copy

All 0

PABS

Absolute

All 0

PNEG

Negation

All 0

PCLR

Clear

All 0

Table 3.22

Correspondence between Operands and Registers

Yes

As shown in figure 3.10, data loaded from the memory at the MA stage, which is programmed at

the same line as the ALU operation, is not used as a source operand for this operation, even

though the destination operand of the data load operation is identical to the source operand of the

ALU operation. In this case, previous operation results are used as the source operands for the

ALU operation, and then updated as the destination operand of the data load operation.

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