rom bist 的input 有rom_content file 。校验rom还坏，主要通过signature比较。signature跟rom content file 一一对应的。
rom bist scritps主要有三个：
1.rom_mbist_run: call mbistarchitect tool
2.rom_run.do:run rom bist flow
3.rom_mbist.do: 定义算法ROM1 输出 主要跟rom bist FSM 有关
rom_mbist_rum:
mbistarchitect ../netlist/rom_top.v -top rom_top -logfile rom_bist_log -insertion -dofile ../scripts/run.do -lverilog ../models/rom_instance.v -rep
rom_run.do:
load library ../models/rom_instance.lib
add new port bist_mode -dir in
add new port bist_done -dir out
add new port bist_fail -dir out
reports clocks
report pin sharing
set system mode bist
report memory instances
add new controller u_top_bist -do ../scripts/rom_mbist.do u_rom_instance
report memory instances
add pin mapping bist_mode u_top_bist/test_h
add pin mapping bist_done u_top_bist/bist_done
report pin mapping
insert bist logic
report controllers
save design -rep -inc rtl
set system mode int
add pattern translation -all
integrate pattern
report pattern translation
report controller description
save patterns mapped.v -rep -verilog
exit
rom_mbist.do:
reset state
add memory model rom_instance_module_name -filename ../models/rom_content_file -collar rom_instance_collar_name
setup mbist algorithms rom1/rom2
setup observation scheme -compress
setup mbist compressor -localcomparator
report mbist algrorithms
set bist insertion -on
setup memory clock -test
setup memory test -con
set design name controller -module controller_name
set file naming -bist rom_bist.v
set file naming -con rom_bist_con.v
set file naming -test rom_bist_tb.v
set file naming -wgl rom_bist_wgl.v
set file naming -ctdl rom_bist.ctdf
report design name
report pin name
run
report pin name
save bist -verilog -replace
report environment
exit -d