Changes
/* TODO : welcome VGA signal */
Done in r005.8.14.4 : lighter pixels during bootload.
Some VGA does detect FPGAmstrad resolution just if pixels are ligther, so I turn them lighter during start of engine. Normaly a press into reset button (the one front the sdcard entry) does solve directly this problem (you can also turn on screen before MiST-board with this sort of screens)
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