Screen scrolling and output can be made very fast. The ROM routines redraw the entire screen when scrolling, and the character drawing is quite slow (it polls the LCD's busy when you can just do a hard-coded delay loop). The LCD drivers can do hardware scrolling internally by 8 pixels (rotates which rows are displayed), though it's two rows of drivers so you have to copy graphics from the lower to upper when scrolling. It's lightning-fast if done right.
Re scroll lock. This can be turned off so scrolling will be continuous. The M100 CP/M docs say... F1 - toggles between Scroll Locked (Sc L) and 'Scroll Standard' (Sc S). Press LABEL to see this. In Locked mode, when the display is ready to scroll, the cursor will be at the right-hand bottom awaiting any key press. F1 can be pressed at anytime, however best to select it before starting the offending program.
... ich habe schon 2 mal versucht hier einen Kommentar abzusetzen. Aber immer wieder war er bei einem refresh gelöscht. Wo liegt das Problem. Ich schreibe dir mal eine mail.
@@MeinElektronikHobby das ist UA-cam... mein Content wird aktiv gedrosselt. Bzw. moderiert. Ich weiss nicht warum. Deine Kommentare kriegen immer ein Herz von mir. Löschen tu ich die bestimmt nicht.
Screen scrolling and output can be made very fast. The ROM routines redraw the entire screen when scrolling, and the character drawing is quite slow (it polls the LCD's busy when you can just do a hard-coded delay loop).
The LCD drivers can do hardware scrolling internally by 8 pixels (rotates which rows are displayed), though it's two rows of drivers so you have to copy graphics from the lower to upper when scrolling. It's lightning-fast if done right.
Re scroll lock. This can be turned off so scrolling will be continuous. The M100 CP/M docs say... F1 - toggles between Scroll Locked (Sc L) and 'Scroll Standard' (Sc S). Press LABEL to see this. In Locked mode, when the display is ready to scroll, the cursor will be at the right-hand bottom awaiting any key press. F1 can be pressed at anytime, however best to select it before starting the offending program.
Is there a place where I can purchase all of the parts including the cup and Rom?
This is excellent! Great video and info!
@@gregskuza7166 bitchin100.com
... ich habe schon 2 mal versucht hier einen Kommentar abzusetzen. Aber immer wieder war er bei einem refresh gelöscht. Wo liegt das Problem. Ich schreibe dir mal eine mail.
@@MeinElektronikHobby das ist UA-cam... mein Content wird aktiv gedrosselt. Bzw. moderiert. Ich weiss nicht warum. Deine Kommentare kriegen immer ein Herz von mir. Löschen tu ich die bestimmt nicht.