;=========================================================;; Test calltable                                 18/03/05 ;;---------------------------------------------------------;; By Dex4u.                                               ;;                                                         ;; Here is a simple "hello world" program.                 ;; for Dex4u, using the calltable functions.               ;; To assemble use fasm as follows                         ;; c:\fasm hello.asm hello.dex                             ;;=========================================================;use32        ORG   0x200000          ; where our program is loaded to        jmp   start             ; jump to the start of program.        db    'DEX1'            ; We check for this, to make shore it a valid Dex4u file.msg1:   db 'Hello world! ',13,0 ;----------------------------------------------------; ; Start of program.                                  ; ;----------------------------------------------------;start:        mov   ax,18h        mov   ds,ax        mov   es,ax ;----------------------------------------------------; ; Get calltable address.                             ; ;----------------------------------------------------;        mov   edi,Functions     ; this is the interrupt        mov   al,0              ; we use to load the DexFunction.inc        mov   ah,0x0a           ; with the address to dex4u functions.        int   40h  ;----------------------------------------------------; ; Try print string.                                  ; ;----------------------------------------------------;        mov   esi,msg1          ; this point's to our string.        call  [PrintString]     ; this call the print function.        call  [WaitForKeyPress] ; is the wait for keypress function.        ret                     ; This returns to the CLI/GUI ;----------------------------------------------------; ; Data.                                              ; ;----------------------------------------------------;include 'DexFunctions.inc'      ; Here is where we includ our "DexFunctions.inc" file    

;=========================================================;; Dex Functions                                  11/12/03 ;;---------------------------------------------------------;; Function call table.                                    ;;                                                         ;; Dex4u V0.01                                             ;; (c) Craig Bamford, All rights reserved.                 ;;=========================================================;;----------------------------------------------------;; Functions                    ; Function calltable. ;;----------------------------------------------------;Functions:CallTableAddress     rd 1           ;  0.call-table address,DO NOT call as function.Function1            rd 1           ;  1.RealModeInt10h       rd 1           ;  2.Call realmode int 10h,fill in AX,BX,CX,DX, with function number etc, be carefull may not work will all functions.RealModeRegs         rd 1           ;  3.Fills in AX,BX,CX,DX with result from above function,set CF to 1 on error.WaitForKeyPress      rd 1           ;  4.Wait for keypress,Exit: ASCII code of keypressed in AL .KeyPressedNoWait     rd 1           ;  5.If keyperssed AL=1,if no keypressed AL=0.ExtendedMemory       rd 1           ;  6.puts extended memory in eax (in KBs),puts total ram in ebx (in MB)ConvenMemorySize     rd 1           ;  7.puts conventional memory in eax (in KBs)TextColor            rd 1           ;  8.Sets the text color, Entry: AL=color.PrintString          rd 1           ;  9.prints a string,esi should point to a 0 termanated string.PrintChar            rd 1           ; 10.prints the char,in alPrintCharCursor      rd 1           ; 11.prints the char,in al and moves cursorSetCursorPos         rd 1           ; 12.Sets Cursor Pos, Entry: AL=X, AH=Y, if the X or Y is bigger than screen size, CF to 1, succes AH=0.WriteHex32           rd 1           ; 13.print the hex value,in eaxWriteHex16           rd 1           ; 14.print the hex value,in alUpperCase            rd 1           ; 15.Converts a 0 termanated string,to uppercase (es:edi = string buffer)CompearString        rd 1           ; 16.Compear two strings,set CF to 1, if strings are not the sameSetDex4uFonts        rd 1           ; 17.Goes to realmode and back sets 50x80 mode/fontsFloppyfileLoad       rd 1           ; 18.Loads a file from floppy,ESI points to name of file to load,EDI = place to load file to,set's CF to 1 on error.CdfileLoad           rd 1           ; 19.Loads a file from CD, CX = file name lenth,ESI = name of file to load,EDI points to place to load to,set's CF to 1 on error.SetDelay             rd 1           ; 20.Sets a delay, ax = delay,18.2 = 1 second.DetectPciBus         rd 1           ; 21.Detect Pci Bus present, set's CF to 1, if no pci busPciFindDevice        rd 1           ; 22.Scan through PCI space looking for a device+vendor ID,CF to 1,if no vender/device found.PciRegWrite8         rd 1           ; 23.Entry: EAX=PCI Bus/Device/fn/register number,DL=data to write.PciRegWrite16        rd 1           ; 24.Entry: EAX=PCI Bus/Device/fn/register number,DX=data to write.PciRegWrite32        rd 1           ; 25.Entry: EAX=PCI Bus/Device/fn/register number,EDX=data to write.PciRegRead8          rd 1           ; 26.Entry: EAX=PCI Bus/Device/fn/register number,Exit: DL register data.PciRegRead16         rd 1           ; 27.Entry: EAX=PCI Bus/Device/fn/register number,Exit: DX register data.PciRegRead32         rd 1           ; 28.Entry: EAX=PCI Bus/Device/fn/register number,Exit: EDX register data.Function29           rd 1GetUserInput         rd 1           ; 30.Gets user input, until enter pressed. Exit: EDI = buffer address, cx = string len.LoadVesaInfo         rd 1           ; 31.loads the address of vesainfo in esi, use this to fill a vesa info structure.SetVesaMode          rd 1           ; 32.Sets vesa mode 4112h (640*480 32bpp),need vesa info structure filling in, use above function.Function33           rd 1