[This message was posted by Michael Wong of Chi-X Global Technology <[email protected]> to the "FAST Protocol" discussion forum at http://fixprotocol.org/discuss/46. You can reply to it on-line at http://fixprotocol.org/discuss/read/73fb3912 - PLEASE DO NOT REPLY BY MAIL.]
Rolf, I want to know if the first bit of PMAP for sequence field indicate the presence of length field or not. Is there related information in the spec? Thanks Michael > Michael, > > I don't have the swx spec in front of me, but the "unknown" entity > between tags 268 and 269 is probably a pmap for the repeating group. > > If you refer to the swx spec you will likely find at least 8 fields in > the repeating group with an operator that requires a pmap entry. > > (popcnt (7B C0) = 7 and field #5 seems to be defaulted.) > > /Rolf > > > Hi All, > > > > I am developing swx feed handler and I have an issue related to decode > > the FAST data from MDI. > > > > msg: > > > > 0000005ah: 00 C6 76 C0 E4 53 57 58 47 52 4F 55 50 2D 4D 44 ; > > 0000006ah: 49 2E 4D 30 B1 4E 92 32 30 30 38 30 36 32 33 2D ; > > 0000007ah: 30 33 3A 35 30 3A 32 33 2E 36 31 B1 81 43 48 30 ; > > 0000008ah: 30 30 34 36 32 36 33 30 B2 81 7B C0 CA 80 80 41 ; > > 0000009ah: 42 51 B5 80 80 80 80 81 ; > > > > I try to decode it manually. > > > > block size = 00 C6 PMAP = 76 C0 (01110110 11000000) TID = E4(100) 49 = > > 53 57 58 47 52 4F 55 50 2D 4D 44 49 2E 4D 30 B1 34 = 4E 92 33 = 32 30 > > 30 38 30 36 32 33 2D 30 33 3A 35 30 3A 32 33 2E 36 31 B1 > > > > 1021 = 81 48 = 43 48 30 30 30 34 36 32 36 33 30 B2 268 = 81 7B C0 <--- > > ? 269 = CA ? 270 = 80 271 = 80 336 = 41 42 51 B5 346 = 80 6566 = 80 > > 1023 = 80 6567 = 80 83 = 81 > > > > I found 7B C0 is appeared between tag 268 and 269. However, I don't > > know what it is about. Also I think there is something wrong with > > the PMAP. > > e.g the last tag 83, I think the PMAP should be set for this tag. > > > > Thanks in advance Michael [You can unsubscribe from this discussion group by sending a message to mailto:[email protected]] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Financial Information eXchange" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/FIX-Protocol?hl=en -~----------~----~----~----~------~----~------~--~---
