**********************************************************************************
*assorted low level assembly support routines used by the sample Library & Device*
**********************************************************************************
CLEAR   MACRO           ;quick way to clear a D register on 68000
        MOVEQ   #0,\1
        ENDM

LINKSYS MACRO           ; link to a library without having to see a _LVO
        MOVE.L  A6,-(SP)
        MOVE.L  \2,A6
        JSR     _LVO\1(A6)
        MOVE.L  (SP)+,A6
        ENDM

CALLSYS MACRO           ; call a library via A6 without having to see _LVO
        JSR     _LVO\1(A6)
        ENDM

XLIB    MACRO           ; define a library reference without the _LVO
        XREF    _LVO\1
        ENDM
;
; Put a message to the serial port at 9600 baud.  Used as so:
;
;     PUTMSG   30,<'%s/Init: called'>
;
; Parameters can be printed out by pushing them on the stack and
; adding the appropriate C printf-style % formatting commands.
;
                XREF    KPutFmt
PUTMSG:         MACRO   * level,msg

                IFGE    INFO_LEVEL-\1

                PEA     subSysName(PC)
                MOVEM.L A0/A1/D0/D1,-(SP)
                LEA     msg\@(pc),A0    ;Point to static format string
                LEA     4*4(SP),A1      ;Point to args
                JSR     KPutFmt
                MOVEM.L (SP)+,D0/D1/A0/A1
                ADDQ.L  #4,SP
                BRA.S   end\@

msg\@           DC.B    \2
                DC.B    10
                DC.B    0
                DS.W    0
end\@
                ENDC
                ENDM

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