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A macro that waits for a keystroke and returns the key that was pressed. The macro should include parameters for the ASCII code and keyboard scan code.

I have the following code but I am getting two errors. The errors are below with my source code underneath them.

Errors:

error A2006: undefined syV

error MSB3721: The command "ml.exe /c /nologo /Zi /Fo"Debug\ch10_01.obj" /Fl"zprob1.lst" /I "c:\Irvine" /W3 /errorReport:prompt /Ta"....\ASM Solutions\ch10\ch10_01.asm"" exited with code 1

Source Code:

 INCLUDE Irvine16.inc
ASSUME DS:_DATA

mReadkey MACRO ascii, scan
    mov ah,10h      ; BIOS keyboard input function
    int 16h
    mov scan,ah
    mov ascii,al
ENDM

.data
ascii BYTE ?
scan  BYTE ?
str1  BYTE "ASCII code: ",0
str2  BYTE "Scan code:  ",0

.code
main PROC
mov ax,@data
mov ds,ax

; Wait for a key; when the macro returns, the two arguments
; contain the ASCII code and scan code of the key.
mReadkey ascii, scan

; Display the values.
    mov edx,OFFSET str1
    call WriteString
    movzx eax,ascii
    call WriteHex
    call Crlf

    mov edx,OFFSET str2
    call WriteString
    movzx eax,scan
    call WriteHex
    call Crlf

    exit
main ENDP
END main
rkhb
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Zac Davidson
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1 Answers1

2

You tried to compile a 16-bit real mode code to a 32-bit protected mode executable. That won't work. Add a /omf to the command line of ml.exe and ensure that link16.exe will be used as linker.

rkhb
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