Home  MASM Print Number In Hexadecimal
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Print Number In Hexadecimal |
TITLE Print Number in Hex
; This program reads a signed decimal number into a 32-bit double word and
; then prints out the double word in hexadecimal, one hex character at a time.
INCLUDE Irvine32.inc
.data
promptUserForDec BYTE "Enter a signed decimal number: ",0
numberConverted BYTE "Your number in hex is: ",0
tryAgain BYTE "Try again (y or n): ",0
decimalToConvert DWORD ?
.code
Main PROC
Convert:
mov edx,OFFSET promptUserForDec ;Prompt user for signed decimal number
call WriteString
call ReadInt ;Get signed decimal number from user
call crlf
mov edx,eax
mov cl,32
mov ebx,8 ;Convert signed decimal to hexadecimal and print
OneConversion:
sub cl,4
mov eax,edx
shr eax,cl
and al,00001111b
add al,30h
cmp al,39h
jbe Over
add al,7h
Over:
call WriteChar
sub ebx,1
cmp ebx,0
jne OneConversion
mov al,68h
call WriteChar
call crlf
call crlf
mov edx,OFFSET tryAgain ;Try again
call WriteString
call ReadChar
call crlf
call crlf
cmp al,79h
je Convert
exit
main ENDP
END main
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