more block generating functions
corrected startup behavior, no more ghost pulse on system reset
edge detector block, only works for posedge for now
testbench for 96-bit dsp48e adder
multi to_workspace block created for testbench purposes
minor change to function sig
changed to varargin function sig
changed to varargin function sig & changed all calling functions
cleaned up a few comments at the top
ran testbench with new cmult_dsp48e
using new coeff_gen_init_xblock; test passes via test on biplex_real_4x
added switch for dsp48e instatntiation; original (behav) test still
passes
48-bit version added and use_en switch. both need testing