HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 195

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

3.5.6
Figure 3.15 shows the ALU logical operation flow. Table 3.24 shows the variation of this type of
operation. The correspondence between each operand and registers is the same as the ALU fixed-
point operations as shown in table 3.21.
As shown in figure 3.15, this type of operation uses only the upper word of each operand. The
lower word and guard-bit parts are ignored for the source operand and those of the destination
operand are automatically cleared. These operations are also executed in the DSP stage, as shown
in figure 3.10. The DSP stage is the same stage as the MA stage in which memory access is
performed.
Table 3.24 Variation of ALU Logical Operations
Mnemonic
PAND
POR
PXOR
ALU Logical Operations
39
31
Source 1
Function
Logical AND
Logical OR
Logical exclusive OR
Figure 3.15 ALU Logical Operation Flow
39
31
Destination
0
ALU
Source 1
Sx
Sx
Sx
39
31
Source 2
0
Rev. 3.00 Jan. 18, 2008 Page 133 of 1458
Source 2
Sy
Sy
Sy
DSR
Ignored
Cleared to 0
0
GT Z
Section 3 DSP Operating Unit
N
Destination
Dz
Dz
Dz
V DC
REJ09B0033-0300