HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 157

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 3.21 Variation of ALU Fixed-Point Operations
Table 3.22 Correspondence between Operands and Registers
As shown in figure 3.10, data loaded from the memory at the MA stage to X0 by the data transfer
instruction (MOVX.W @R4+,X0) which is programmed at the same line as the ALU operation
(PADD X0,Y0,A0) , is not used as a source operand for this operation, even though the destination
operand X0 of the data load operation is identical to the source operand of the ALU operation. In
this case, results of previous operation (MOVX.W @R4+,X0) are used as the source operands for
the ALU operation, and then updated as the destination operand X0 of the data transfer instruction
(MOVX.W @R4+,X0). .
Mnemonic
PADD
PSUB
PADDC
PSUBC
PCMP
PCOPY
PABS
PNEG
PCLR
Register
A0
A1
M0
M1
X0
X1
Y0
Y1
Function
Addition
Subtraction
Addition with carry
Subtraction with borrow
Comparison
Data copy
Absolute
Negation
Clear
Sx
Yes
Yes


Yes
Yes


Sy


Yes
Yes


Yes
Yes
Source 1
Sx
Sx
Sx
Sx
Sx
All 0
Sx
All 0
Sx
All 0
All 0
Sx
Dz
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Source 2
Sy
Sy
Sy
Sy
Sy
All 0
Sy
All 0
Sy
All 0
Sy
All 0
Rev. 1.00, 02/04, page 119 of 804
Du
Yes
Yes


Yes

Yes

Destination
Dz or Du
Dz or Du
Dz
Dz
—
Dz
Dz
Dz
Dz
Dz
Dz
Dz