MSC8101PG Motorola / Freescale Semiconductor, MSC8101PG Datasheet - Page 131

• Manufacturer Part Number: MSC8101PG
• Description: MSC8101PG 16-Bit Digital Signal Processor Quick Reference
• Manufacturer: Motorola / Freescale Semiconductor

DIV
DMACSS
DMACSU
DOENn
DOENSHn
DOSETUPn
EI
EOR
Mnemomic
If Dn[39]
where
Multiply signed by signed and accumulate with data register right shifted by word size
[Dn>>16] + Da.H * Db.H
(Da signed, Db signed)
[Dn>>16] + Da.H * Db.L
(Da signed, Db unsigned)
Do enable—set the loop counter n and enable loop n as a long loop
#u6
#u16
DR
Do enable short—set loop counter n and enable loop n as a short loop
#u6
#u16
DR
Setup loop start address n
PC + displacement
Enable interrupts (clears the DI bit in the status register)
0
Bitwise exclusive OR
Da
Divide iteration
Multiply signed by unsigned and accumulate with data register right shifted by word size
then 2 * Dn + C + (Da & $FF FFFF 0000)
else 2 * Dn + C – (Da & $FF FFFF 0000)
DI
Dn
LCn; 1
LCn; 1
LCn; 1
LCn; 1
LCn; 1
LCn; 1
denotes the bitwise exclusive OR operator
Da[39] = 1,
Dn
LFn
LFn; 1
LFn
LFn; 1
LFn
LFn; 1
Operation
SAn
SLF
SLF
Dn
Dn
SLF
Table 9-5. Instructions Grouped Alphabetically (Continued)
Description
Dn
Dn
DIV Da,Dn
DMACSS Da,Db,Dn
DMACSU Da,Db,Dn
DOENn #u6 {0
DOENn #u16 {0
DOENn DR
DOENSHn #u6 {0
DOENSHn #u16 {0
DOENSHn DR
DOSETUPn label
EI
DOR Da,Dn
Assembler Syntax
u6 < 64}
u16 < 2
u6 < 64}
u16 < 2
16
}
16
}
Words
1
1
1
1
2
1
1
2
1
3
1
1
Cycles
1
1
1
1
1
1
1
1
1
1
1
1
Type
1
1
1
4
4
4
4
4
4
4
4
2
Functional
Arithmetic
Arithmetic
Arithmetic
Program
Control
Logical
Group
DALU
DALU
DALU
DALU
Loop
Loop
Loop