Changes between Initial Version and Version 1 of Component/Sparcv8


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Timestamp:
Apr 27, 2009, 1:42:51 AM (15 years ago)
Author:
polti
Comment:

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  • Component/Sparcv8

    v1 v1  
     1[wiki:Component SocLib Components General Index]
     2
     3= Processor Functional Description =
     4
     5This hardware component is a Sparc v8 processor core.
     6
     7This ISS uses the [wiki:Component/Iss2Api ISS2 API]
     8and can be wrapped in a CABA or TLM-T [wiki:Component/VciXcacheWrapper Wrapper].
     9
     10It implements all instructions defined in the Sparc v8 architecture specification, with the following limitations:
     11 * LDSTUB, SWAP and alternate versions work only on a word granularity (see below)
     12 * the ASI is currently not supported
     13 * an optional FP is provided through a compilation flag (FPU, enabled by default)
     14
     15= Component definition & implementation =
     16
     17 * source:trunk/soclib/soclib/lib/sparcv8/metadata/sparcv8.sd
     18 * source:trunk/soclib/soclib/lib/sparcv8/include/sparcv8.h
     19 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8.cpp
     20 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_run.cpp
     21 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_logical.cpp
     22 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_branch.cpp
     23 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_load_store.cpp
     24 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_traps.cpp
     25 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_hazard.cpp
     26 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_debug.cpp
     27 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_fp.cpp
     28 * source:trunk/soclib/soclib/lib/sparcv8/src/sparcv8_cp.cpp
     29
     30
     31== Template parameters ==
     32 
     33This component has one template parameter :
     34  * NWIN (int) : the number of windows. By default : 8
     35
     36== Interrupts ==
     37
     38Sparc V8 defines 4 interrupts lines.
     39
     40== Ports ==
     41
     42None, it is to the wrapper to provide them.
     43
     44== LDSTUB and SWAP support ==
     45
     46SocLib infrastructure doesn't support directly SWAP and LDSTUB instructions. Thus they are emulated through SC and LL extended accesses.
     47When executed, the infrastructure verify that they succeeded. If not, they may either trap or be automatically re-executed until successfull execution.
     48The compilation flag SWAP_TRAPS decides which strategy to use.
     49_Warning_ : when automatic re-execution is choosen, the system may deadlock.