Adding a simple plasma example read write char short int, adding simulations

for this example

plasma/logic/Makefile

@@ -1,4 +1,4 @@
-DESIGN          = plasma_3e
+DESIGN          = plasma
 PINS           = $(DESIGN).ucf
 DEVICE          = xc3s500e-fg320-4
 BGFLAGS         = -g TdoPin:PULLNONE -g DonePin:PULLUP \
@@ -11,9 +11,6 @@ SIM_COMP_SCRIPT = simulation/$(DESIGN)_TB.do
 SIMGEN_OPTIONS = -p $(FPGA_ARCH) -lang $(LANGUAGE)
 
 SRC_HDL             = plasma.vhd alu.vhd control.vhd mem_ctrl.vhd mult.vhd shifter.vhd bus_mux.vhd ddr_ctrl.vhd  mlite_cpu.vhd pc_next.vhd cache.vhd eth_dma.vhd mlite_pack.vhd pipeline.vhd reg_bank.vhd uart.vhd plasma_3e.vhd ram_image.vhd
-
-
- 
  
 all:            bits
 
@@ -22,6 +19,7 @@ remake:         clean-build all
 clean:
 	rm -rf *~ */*~ a.out *.log *.key *.edf *.ps trace.dat
 	rm -rf *.bit rm -rf simulation/work simulation/*wlf
+	rm -rf simulation/transcript 
 
 clean-build:
 	rm -rf build