reorganized file structure
adding target to incr() in mmix-bus
*** empty log message ***
addint a test to write a file
added target to incr() function
fat32 lib rewritten. execpt for second fat working not well tested
writing a nonblocking socket under windows now causes bussy waiting.
bug fix in SWYM
changing the SWYM instruction to cope with Format SWYM $X,YZ
secondary changes in generated c file
