| Author |
Message |
omara007
Joined: 06 Jan 2003
Posts: 1283
Helped: 39
Location: Dubai
|
 05 Jan 2009 23:56 16 bit adder |
|
|
|
|
Is there any adder architecture that supports this ? ..
if so, is there a Synopsys DW that implements it ? ..
|
|
| Back to top |
|
 |
rsqf
Joined: 21 May 2007
Posts: 29
Helped: 2
|
06 Jan 2009 9:21 16 bit adder from 8 bit |
|
|
|
|
| yep ,i think u can re-design the 16bit add into a 2 8-bits add in RTL.
|
|
| Back to top |
|
|
Google
AdSense
|
06 Jan 2009 9:21 Ads |
|
|
|
|
|
|
| Back to top |
|
|
omara007
Joined: 06 Jan 2003
Posts: 1283
Helped: 39
Location: Dubai
|
06 Jan 2009 17:07 16-bit adder using 2 8-bit adders |
|
|
|
|
| rsqf wrote: |
| yep ,i think u can re-design the 16bit add into a 2 8-bits add in RTL. |
???
|
|
| Back to top |
|
|
Lixusan
Joined: 29 Dec 2008
Posts: 4
Helped: 2
|
07 Jan 2009 6:27 Re: can I use 16-bit adder as 2 seperate 8-bit adders? |
|
|
|
|
if you want to use two 8-bit adders, you use the adder with carry bit.
1, lower 8 bits add together. get the low carry bit
2, higher 8 bits add with the low carry bit. the result will be 17bit if you care the carry.
|
|
| Back to top |
|
|
omara007
Joined: 06 Jan 2003
Posts: 1283
Helped: 39
Location: Dubai
|
07 Jan 2009 22:57 Re: can I use 16-bit adder as 2 seperate 8-bit adders? |
|
|
|
|
| Lixusan wrote: |
if you want to use two 8-bit adders, you use the adder with carry bit.
1, lower 8 bits add together. get the low carry bit
2, higher 8 bits add with the low carry bit. the result will be 17bit if you care the carry. |
Does this work with signed numbers ??
|
|
| Back to top |
|
|
ammarabbasi
Joined: 31 May 2008
Posts: 14
Location: Lahore
|
08 Jan 2009 16:24 can I use 16-bit adder as 2 seperate 8-bit adders? |
|
|
|
|
|
|
| Back to top |
|
|
omara007
Joined: 06 Jan 2003
Posts: 1283
Helped: 39
Location: Dubai
|
08 Jan 2009 20:55 Re: can I use 16-bit adder as 2 seperate 8-bit adders? |
|
|
|
|
| ammarabbasi wrote: |
|
Did you design it through RTL coding or schematics ?
|
|
| Back to top |
|
|
