/* bdos - call BDOS function from C/80 Version 2.0 */
#define RETCURDSK	25
#define DSKSEL		14	/* USE DIFFERENT NAME THAN BIOS CALL */
bdos(fcn, arg)			/* do BDOS function fcn with arg */
unsigned fcn, arg;
{
switch	(fcn) { 		/* is value already in HL?	*/
	case 12:
	case 24:
	case 27:
	case 29:
	case 31:
arg;
#asm
	MOV	D,H
	MOV	E,L
#endasm
fcn;
#asm
	MOV	C,L
	CALL	5		;CALL BDOS
	RET			;RETURN WITH RESULT IN HL
#endasm
	default:
arg;
#asm
	MOV	D,H
	MOV	E,L
#endasm
fcn;
#asm
	MOV	C,L
	CALL	5		;CALL BDOS
	MOV	L,A		;PUT IT INTO HL
	MVI	H,0
	RET			;RETURN WITH RESULT IN HL
#endasm
	}
}				/* end of bdos			*/









ETURN WITH RESULT IN HL
#endasm
	}
}				/* end of bdos			*/