HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 117

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Table 2.37 MSB Detection Instructions
Instruction
PDMSB Sx,Dz
PDMSB Sy,Dz
DCT PDMSB
Sx,Dz
DCT PDMSB
Sy,Dz
DCF PDMSB
Sx,Dz
DCF PDMSB
Sy,Dz
Table 2.38 Rounding Operation Instructions
Instruction
PRND Sx,Dz
PRND Sy,Dz
Operation
Sx data MSB position
MSW of Dz, clear LSW of
Dz
Sy data MSB position
MSW of Dz, clear LSW of
Dz
If DC=1, Sx data MSB
position
clear LSW of Dz; if 0, nop
If DC=1, Sy data MSB
position
clear LSW of Dz; if 0, nop
If DC=0, Sx data MSB
position
clear LSW of Dz; if 1, nop
If DC=0, Sy data MSB
position
clear LSW of Dz; if 1, nop
Operation
Sx+H'00008000 Dz
clear LSW of Dz
Sy+H'00008000 Dz
clear LSW of Dz
MSW of Dz,
MSW of Dz,
MSW of Dz,
MSW of Dz,
Code
111110**********
10011101xx00zzzz
111110**********
1011110100yyzzzz
111110**********
10011110xx00zzzz
111110**********
1011111000yyzzzz
111110**********
10011111xx00zzzz
111110**********
1011111100yyzzzz
Code
111110**********
10011000xx00zzzz
111110**********
1011100000yyzzzz
Cycles
1
1
1
1
1
1
Cycles
1
1
DC Bit
Update
Update
—
—
—
—
DC Bit
Update
Update
99