Here follows the description of some of my test code
(very crude, these are quick and dirty examples i use to debug things)
Under Windows , run these programs FULL SCREEN in exclusive mode.
Assembling these programs you will need at least 256k of free low memory
and 128k of free extended memory, if you have not try to reduce
the EXTMIN and LOWMIN constants declared into 386Power.inc
(the minimum value for EXTMIN must be 64)

EXAMPLE0.ASM
        Create it typing:
                makex example0
                
        It tries to "get up", reads the file hello.txt 
        and writes it to screen in text mode
        then shows an example of "raw" keyboard
        handling (press & release keys to see what key you pressed).
        The _RKB table is cleared at every keypress.
        Pressing ESC you terminate the program.
        
EXAMPLE1.ASM
        Create it typing:
                makex example1
                
        It looks a lot like example1 , but this time it reads
        a voc file called tiger.voc (a sample voc from Street Fighter 2)
        and then repeatly plays it back at 8008Hz.
        If you have a "slow" system or an old keyboard controller
        it may hang.  Press ESC to end.
        Under Windows (DPMI) the playback rate is set to 4004Hz
        because that jerky DPMI server is too darned slow 
        on my 386DX/25 (the DPMI server traps all OUT and IN opcodes)
        when the 4004Hz ISR kicks int it may seem the program has been halted
        BUT it is running (just too much CPU overhead due to DPMI
        trapping too much), wait 30 seconds if you have a slow system and
        something will happen.
        DO NOT PRESS CTRL-ALT-DEL to terminate this program, press ESC
        (and wait if you have a slow system).
        
EXVGA.ASM
        Create it typing:
                makv exvga
        To change from example to example press ANY key.        
        It kicks into mode-x (actually mode-y), draws filled rectangles
        with _Block routines then loads a pcx file featuring gearbox
        (n.b. Gearbox is protected by copyright and trademark)
        Then it loads another pcx file and samples from it
        a multicolor bitmapped font (actually a bunch of 8x8 bitmaps
        handled directly).
        Then shows it can write things :)
        and repeatly displays on the same page a matrix of 10x5
        Gearbox units using the TRLE sprite routine.
        Notice the simple screen to screen effect obtained with the
        Scr2Scr routine.