http://sparccheckpoint.atwiki.com/ en 2008-05-03T06:09:04+09:00 http://sparccheckpoint.atwiki.com/page/Floating%20Point%20Registers Name   Bits Desc File Checkpoint Rollback Commit bw_r_frf ASR0 64 wide 128 entries Floating Point register File  bw_r_frf.v                       2008-05-03T06:09:04+09:00 http://sparccheckpoint.atwiki.com/page/Solaris%20on%20FPGA Boot Notes 0xff f000 0000 +0x0 reset +0x20 2008-05-03T03:07:52+09:00 http://sparccheckpoint.atwiki.com/page/Control%20Registers Name   Bits Desc File Checkpoint Rollback Commit y ASR0 64 mult/div         ccr ASR2 8 condition code         asi ASR3 8 address space identifier         tick ASR4 64           pc ASR5 64 program counter         npc ASR5 64 next program counter         fprs ASR6 3 fp reg state         pcr ASR16 64 performance control         pic ASR17 64 performance instrumentation         gsr ASR19 64 global state         softint_set ASR20 64 #schedule interrupt         softint_clear ASR21 64 #schedule interrupt         softint ASR22 64 #schedule interrupt         tick_cmpr ASR23 64 tick compare         stick ASR24 64 system tick         stick_cmpr ASR25 64 system tick compare           ASR 16-21 Implementation specific           tpc1, tpc6 PR0 64 trap program counter         tnpc1, tnpc6 PR1 64 trap next program counter         tstate1, tstate6 PR2 43 trap state         tt1, tt6 PR3 9 trap type         tba PR5 64 trap base address         pstate PR6 13 processor state         tl PR7 3 trap level         pil PR8 4 processor interrupt level         cwp PR9 5 current window pointer         cansave PR10 5 savable windows         canrestore PR11 5 restorable windows         cleanwin PR12 5 clean windows         otherwin PR13 5 other windows         wstate PR14 6 window state         gl PR16 3 global level                         hpstate HPR0 64 hp state         htstate1, htstate10 HPR1 64 hp trap state         hintp HPR3 64 hp interrupt pending         htba HPR5 64 hp trap base address         hver HPR6 64 hp implementation version         hstick_cmpr HPR31 64 hp system tick compare         2008-05-02T02:22:09+09:00 http://sparccheckpoint.atwiki.com/page/Write%20History%20Queue     Write history queue is used to save the data in memory that is overwritten by post-checkpoint store operations. After a checkpoint is taken, every subsequent store operation will cause the old data and its memory address to be stored in the write history queue. The WHQ will ignore further writes to the same address as we are only concern with the original value to perform a rollback.          When a checkpoint is committed, the data and address stored in the write history queue will be dumped. However, on the event of a rollback, the data in the queue will be written back into the memory at the corresponding addresses. In addition, all caches in the higher hierarchy have to be flushed.     This design allows quick checkpoint taking and checkpoint committing. However, it has a terrible rollback performance and might be slower during speculative mode compared to the other methods since it allows writes to the main memory. 2008-04-18T03:17:37+09:00 http://sparccheckpoint.atwiki.com/page/Extended%20SPARC%20ISA New instructions Checkpoint, CHK {op[1:0], op2[2:0]} = 00 111   Rollback, RBK {op[1:0], op2[2:0]} = 00 101 Comment: Two subsequent instructions after RBK have to be NOPs. We plan to include architecture support to flush the Fetch and Schedule stage at a later point.   Commit, CMT {op[1:0], op2[2:0]} = 00 110   2008-04-14T03:09:12+09:00 http://sparccheckpoint.atwiki.com/page/Menu ==menu== * [[FrontPage]] * [[Menu]] ---- ==recent list 20 == @@recent(20)@@ ---- 2008-04-07T02:15:09+09:00 http://sparccheckpoint.atwiki.com/page/Tools GNU Assembler from Binutils 2.18 the assembler has been updated to support the extended SPARC ISA file modified is opcodes/sparc-opc.c configured for the sparc-sun-solaris target 2008-04-01T22:58:12+09:00 http://sparccheckpoint.atwiki.com/page/delete1 GNU Assembler from Binutils 2.18 -the assembler has been updated to support the extended SPARC ISA -file modified is opcodes/sparc-opc.c -configured for the sparc-sun-solaris target 2007-11-18T02:24:54+09:00 http://sparccheckpoint.atwiki.com/page/Welcome Wiki is a type of websites. You can edit wiki pages easily. You can edit the content with WYSIWYG(HTML)-mode or TEXT-mode or WIKI-mode You can change web site style , If SignIn on page top right bottun. Page Lock is signin user only. Lock-@id is @id user only editable. Lock-admin is admin only editable. 2007-11-18T02:22:46+09:00 http://sparccheckpoint.atwiki.com/page/General%20Purpose%20Registers ugekjsdjkf 2007-11-01T15:55:39+09:00