參數(shù)資料
型號(hào): UPD77112
廠商: NEC Corp.
元件分類: 數(shù)字信號(hào)處理
英文描述: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS
中文描述: 16位定點(diǎn)數(shù)字信號(hào)處理器
文件頁(yè)數(shù): 37/80頁(yè)
文件大小: 451K
代理商: UPD77112
Data Sheet U12801EJ4V0DS00
37
μ
PD77110, 77111, 77112
Instructions Simultaneously Written
Flag
Instruc-
tion
Instruction
Name
Mnemonic
Operation
Trino-
mial
Bino-
mial
Unino-
minal
Load/
store
Trans-
fer
Imme-
diate-
value
Bran-
ch
Loop
Cont-
rol
OV
Binomial
operation
Less than
ro
= LT (ro, ro
)
if (ro < ro
)
{ro
0x0000000001}
else {ro
0x0000000000}
{
z
Clear
CLR (ro)
ro
0x0000000000
{
{
z
Increment
ro
= ro + 1
ro
ro + 1
{
{
Decrement
ro
= ro
1
ro
ro
1
{
{
Absolute value
ro
= ABS (ro)
if (ro < 0)
{ro
ro}
else {ro
ro}
{
{
1’s
complement
ro
= ~ro
ro
~ro
{
{
z
2’s
complement
ro
=
ro
ro
ro
{
{
Clip
ro
= CLIP (ro)
if ( ro > 0x007FFFFFFF)
{ro
0x007FFFFFFF}
elseif {ro < 0xFF80000000}
{ro
0xFF80000000}
else {ro
ro}
{
{
z
Round
ro
= ROUND (ro)
if (ro > 0x007FFF0000)
{ro
0x007FFF0000}
elseif {ro < 0xFF80000000}
{ro
0xFF80000000}
else {ro
(ro + 0x8000)
& 0xFFFFFF0000}
ro
log
2
(
1
{
{
z
Exponent
ro
= EXP (ro)
ro
)
{
{
z
Substitution
ro
= ro
ro
ro
{
{
z
Accumulated
addition
ro
+ = ro
ro
ro
+ ro
{
{
Accumulated
subtraction
ro
= ro
ro
ro
ro
{
{
Uninom-
inal
operation
Division
ro
/ = ro
if (sign (ro
) == sign (ro))
{ro
(ro
ro) << 1}
else
{ro
(ro
+ ro)<<1}
if (sign (ro
)==0)
{ro
ro
+ 1}
{
{
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