Thursday, May 10, 2007

C Language Interface lib of Loongson Multimedia Instruction Set

I don't know if i was making translation errors again.

jamesr, a 17-year-old student in his 2nd year of high school, has been working on C language interface for Loongson multimedia instructions for some time. On May 8, he released his 0.1 version of libmmi_ls. Although it may not perform perfect, but his job is really appreciated. He studied C language by himself 1 year ago.

64bit PMON has been solved

On May 9, 64 bit PMON on Loongson is solved. Former PMON is 32bit despite a 64bit CPU. The developers said that the advantages to use a 64bit PMON :
1. We can get access to anywhere in the 64bit space by C pointers in PMON
2. DDR can be locate to any place in PMON. (???I don't know such technical stuffs so it might be a translation mistake)
3. Tool chain is gcc 3.4.6, which is consistent to 2.6 kernel tool chain.

Tuesday, May 8, 2007

CF card and handwriting stroke recognition are finished

Loongson 2E has already support CF card by miniIDE-CF adapter.

Another thing should be mentioned is the stroke recognition. As Chinese is base on thousands of characters instead of tens of alphabets, stroke recognition is generally more difficult and not opensource. I am afraid that there may be a negotiation between Loongson group and other companies.

XGI V3XT and SiS315E is now supported

Officially confirmed by Loongson Technology Service Center, Beijing.

SiS315E is solved at April 20 and XGI V3XT at April 24.

Wednesday, May 2, 2007

Loongson 3 is expected to have 16cores

Another series of Loongson, the multi-core Loongson 3 is in designing. The developers said that they hope it will be a 16core cpu with 1.2+GHz each. The share L2 cache is 8MB.

Loongson 2F is to be taping out

The next member of Loongson 2 family, the 2F is sent to tape-out process on May 2nd, 2007. This is about 3 months later than the developers expected at the beginning of this year.

1. 30% faster clock frequency. We can expect for 1G+ product.
2. Comparing to 2E, 2F can saving up to 40% of the power consumption. Moreover, temperature sensor, frequency steps and other power management functions is available.
3. More integrated: DDR2 controller, 66MHz PCI/100MHz PCI-X controller,
Local IO controller, GPIO, time Interrupt Controller、DMA controller and so on.
4. Smaller: 27mm x 27mm, comparing to 35 x 35 of 2E.
5. Better DFT and DFM to lower costs.

I am back

After a boring month full of college course and laboratory training, I am finally free.

Exciting things is coming soon...