Revision as of 08:32, 12 May 2010

FPU

Data formats

Page 18-23 SPARCV8.pdf

[1]

PSR

File:Example.jpg

sf_float64_2op_check;sf_float64_2op_set

Helper function : sf_float64_2op_check

called whenever softfloat_check() is called ... which is after the posedge of clk

and similar for sf_float64_2op_set except that it is called before the posedge of clk

and int ops have similar helper functions

simple_result

 simple_result[state].when       = my_gettime();
 simple_result[state].val        = ll_res;
 simple_result[state].op         = do_op;
 simple_result[state].in_use     = 1;

saves the pre comp values in a data structure struct Result_Entry... then checked using the fpu generated result....

struct result_entry saves values for checking including number of tests being run

32 bit operations are meant to printed out with masking being involved at some point

we assign op=OP_MDDS something to tell the hardware the current opcode and float64_add_next etc are used to compute the softvalues .. no calculations by hand

PLI

tf_putlongp() is a PLI function which puts a 64 int value to the current task or function

my_putlongp() is a helper function which takes in dest and value and stores it into that dest with some PLI function...

similarly for my_getlongp() and my_gettime()

GIT Commands - HOWTO

git commit //adds the current changes to the local repo

git push //makes the changes to the server repo

git status // to check local rev compares to the main one

git pull //to sync with others

git mv foo foo.cpp

git add foo.cpp

TO COMMIT - TYPICAL WAY

git commit -a -m 'DEBUG: Defaulted to the rank test...'

git reset --hard HEAD // reset local repo

git diff HEAD // diff from last commit

NOTES on terminal commands and search tips

NOTES on terminal commands and search tips

grep -r <string> * --- To search for a string in folders

find ~ -name "*.*" --- to search for a file

to open a pdf

evince <filename>.pdf