參數(shù)資料
型號: UPD77213F1-xxx-DA2
廠商: NEC Corp.
元件分類: 數(shù)字信號處理
英文描述: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSOR
中文描述: 16位定點數(shù)字信號處理器
文件頁數(shù): 43/74頁
文件大小: 467K
代理商: UPD77213F1-XXX-DA2
Data Sheet U15203EJ3V0DS
43
μ
PD77210, 77213
Instructions That Can Be
Described Simultaneously
F
I
Instruction Name
Mnemonic
Operation
T
B
M
L
T
I
B
L
C
O
Clear
CLR (ro)
ro
0x0000000000
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}
ro’
~ro
1’s complement
ro’ = ~ro
2’s complement
ro’ =
ro
ro’
ro
Clip
ro’ = CLIP (ro)
if (ro > 0x007FFFFFFF)
{ro’
0x007FFFFFFF}
elseif (ro < 0xFF80000000)
{ro’
0xFF80000000}
else {ro’
ro}
Round
ro’ = ROUND (ro)
if (ro > 0x007FFF0000)
{ro’
0x007FFF0000}
elseif (ro < 0xFF80000000)
{ro’
0xFF80000000}
else {ro’
(ro + 0x8000)
& 0xFFFFFF0000}
Exponent
ro’ = EXP (ro)
ro’
log
2
(1/ro)
Substitution
ro’ = ro
ro’
ro
Accumulated add
ro’ + = ro
ro’
ro’ + ro
Accumulated sub
ro’
= ro
ro’
ro’
ro
M
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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