TITLE Setting Text Color, Dumping Memory and Registers  (Output2.asm)

; Testing following Output Procedures in the assembly32.lib Library:

; Clrscr:       Clears the console screen
; SetTextColor: Set the foreground and background colors of text
; DumpMem:      Write a block of memory in hexadecimal
; DumpRegs:     Display basic registers and flags in hexadecimal
; WaitMsg:      Display a message and wait for Enter key to be pressed
; Gotoxy:       Put the cursor at a specific row/column on the console

.686
.MODEL flat, stdcall
.STACK

INCLUDE Irvine32.inc

.data

CR  EQU     0Dh		; carriage return
LF  EQU     0Ah		; line feed

string   BYTE    "This is a string", CR, LF, 0

.code
main PROC
; Clear the screen after setting text color
    mov  eax, yellow+(blue*16)  ; yellow = 14 and blue = 1
    call SetTextColor           ; set yellow text on blue background
    call Clrscr                 ; Call procedure Clrscr

; Call DumpMem that display a block of memory to standard output
    mov  esi, OFFSET string     ; esi = address of memory block
    mov  ecx, LENGTHOF string   ; ecx = number of elements to display
    mov  ebx, TYPE BYTE         ; ebx = type of each element
    call DumpMem                ; write 19 bytes of string

; Call WaitMsg that displays "Press [Enter] to continue ..."
    call WaitMsg                ; wait for [Enter] key to be pressed

; Call DumpRegs that display the basic registers and flags in hex
    call DumpRegs               ; write basic registers

; Call WaitMsg after locating the cursor on the console
    mov  dh, 15                 ; row 10
    mov  dl, 20                 ; column 20
    call Gotoxy                 ; locate cursor
    call WaitMsg                ; wait for [Enter] key to be pressed

    exit
main ENDP
END main