That's all. Like this you can run several sequential instructions, like reading and interpreting severals FAT32 variables using a SPI slaved component solving "read one byte at this address" instruction writen under a really low-level SDCARD protocol language.
Theses state-machines does use led debug : an '''integer''' contains the state of state machine, and this '''integer''' is displayed on 8 leds so you know where you are, it's for that I add several crash states in order to understand why and where component does crash. In On MiST-board, this is displayed on using the five 7-segment I just added in OSD, I add added also an input personalized "OSD menu entry" in order to select one or another state machine.during first phases of MiST-board's version of this project (that's where you can still see a mysterious 7-segment still displayed at bottom of OSD, it's used sometime for debug purpose)
==== FPGAmstrad_amstrad_video schematic ====