HPAVC/HPAVC CD-ROM.iso/pc/VLA_FONT.ZIP/PRINTSUB.INC

Text File | 1993-09-28 | 5.0 KB | 254 lines

    ────────────────────────────────────────────────────────────────────
    ;Waits until either Yy or Nn is pressed, returns CF=1 for YES
    ; and CF=0 for NO
    ────────────────────────────────────────────────────────────────────
PROC YesNo
    push    ax

@@TopOLoop:
    mov     ah,0
    int     16h
    cmp     al,"Y"
    je      @@Yes
    cmp     al,"y"
    je      @@Yes
    cmp     al,"N"
    je      @@No
    cmp     al,"n"
    je      @@No
    jmp     @@TopOLoop
@@Yes:
    stc
    pop     ax
    ret
@@NO:
    clc
    pop     ax
    ret
ENDP
    ────────────────────────────────────────────────────────────────────
    ;   Prints azero terminating string
    ;
    ; IN: ds:si = source
    ;OUT:    cx = # of char written
    ────────────────────────────────────────────────────────────────────
PROC PrintZ
    push    si dx ax
    cld
    xor     cx,cx
@@TheLoop:
    mov     dl,[si]
    or      dl,dl
    je      @@Done
    mov     ah,2
    int     21h

    inc     cx
    inc     si
    jmp     @@TheLoop

@@Done:
    pop     ax dx si
    ret
ENDP

    ────────────────────────────────────────────────────────────────────
    ; Print a number to memory
    ; does not print leading zeros... prints spaces instead
    ; & tacks on a zero at the end
    ;
    ;IN: eax = number to print
    ;     cx = number of digits to print (max 11)
    ────────────────────────────────────────────────────────────────────
PROC DEC_Print2Mem NEAR
    push    bp cx eax edx ebx si
    cld
    mov     bp,cx

    cld
    xor     si,si
    or      eax,eax
    jns     @@NoPrintSign
    inc     si              ;si not zero means we print a sign
    dec     bp              ;count the sign
    neg     eax
@@NoPrintSign:

    mov     cx,11
    mov     ebx,10
@@DLNum:
    xor     edx,edx
    div     ebx
    add     dl,'0'
    push    dx      ;push the result
    loop    @@DLNum

    mov     cx,11
    mov     dh,0    ;flag if we hit non-zero yet
@@DLNum2:
    pop     ax
    cmp     cx,bp
    ja      @@DontPrintThisYet
    cmp     al,"0"
    jne     @@NotZero
    or      dh,dh
    jne     @@NotZero
    cmp     cx,1
    je      @@NotZero   ;print last zero if its leading
    mov     al,' '
    jmp     @@PrintIt
@@NotZero:
    inc     dh
    dec     si
    js      @@PrintIt
    mov     [BYTE es:di],"-"
    inc     di
@@Printit:
    stosb
@@DontPrintThisYet:
    loop    @@DLNum2

    pop     si ebx edx eax cx bp
    ret
ENDP
    ────────────────────────────────────────────────────────────────────
    ; Print a number to the screen
    ; does not print leading zeros... prints spaces instead
    ;
    ;IN: eax = number to print
    ;     cx = number of digits to print (max 11)
    ────────────────────────────────────────────────────────────────────
PROC DEC_Print NEAR
    push    bp cx eax edx ebx si
    cld
    mov     bp,cx

    xor     si,si
    or      eax,eax
    jns     @@PrintSign
    inc     si              ;si not zero means we print a sign
    dec     bp              ;count the sign
    neg     eax
@@PrintSign:

    mov     cx,11
    mov     ebx,10
@@DLNum:
    xor     edx,edx
    div     ebx
    add     dl,'0'
    push    dx      ;push the result
    loop    @@DLNum

    mov     cx,11
    mov     dh,0    ;flag if we hit non-zero yet
@@DLNum2:
    pop     ax
    cmp     cx,bp
    ja      @@DontPrintThisYet
    cmp     al,"0"
    jne     @@NotZero
    or      dh,dh
    jne     @@NotZero
    cmp     cx,1
    je      @@NotZero   ;print last zero if its leading
    mov     al,' '
    jmp     @@PrintIt
@@NotZero:
    inc     dh
    dec     si
    js      @@PrintIt
    push    ax
    mov     ah,2
    mov     dl,"-"
    int     21h
    pop     ax
@@Printit:
    mov     ah,2
    mov     dl,al
    int     21h
@@DontPrintThisYet:
    loop    @@DLNum2

    pop     si ebx edx eax cx bp
    ret
ENDP
    ────────────────────────────────────────────────────────────────────
    ; Prints A HEX number to memory..
    ;
    ;IN: es:di = points to start of 8 byte buffer to throw results in
    ;    eax   = number to display
    ;    cx    = # of hex to display MAX 8
    ────────────────────────────────────────────────────────────────────
HexChart    db  "0123456789ABCDEF"

PROC Hex_Print2Mem NEAR
        pusha
        cld
        mov     bp,cx

        mov     dx,8
        xor     bx,bx
@@PHexLoop:
        mov     bl,al
        and     bl,0fh
        mov     cl,[cs:HexChart+bx]
        push    cx

        shr     eax,4
        dec     dx
        jne     @@PhexLoop

        mov     cx,8
@@PhexLoop2:
        pop     ax
        cmp     cx,bp
        ja      @@NoPrintHex
        stosb
@@NoPrintHex:
        loop    @@PhexLoop2

        popa
        ret
ENDP
    ────────────────────────────────────────────────────────────────────
    ; Prints a HEX number to the screen
    ;
    ;IN:    eax = number to display
    ;       cx  = # of hex to display MAX 8
    ────────────────────────────────────────────────────────────────────
PROC Hex_Print NEAR
        pusha
        push    ds
        cld
        mov     bp,cx

        mov     dx,8
        xor     bx,bx
@@PHexLoop:
        mov     bl,al
        and     bl,0fh
        mov     cl,[cs:HexChart + bx]
        push    cx

        shr     eax,4
        dec     dx
        jne     @@PhexLoop

        mov     cx,8
        mov     ah,2
@@PhexLoop2:
        pop     dx          ;dl = char to print

        cmp     cx,bp
        ja      @@NoPrintHex

        int     21h
@@NoPrintHex:
        loop    @@PhexLoop2

        pop     ds
        popa
        ret
ENDP