# 2.11BSD#431 - /usr/src/ucb/PORT/pascal/pdx/machine.h

##### Variables

    errnum            X

       1: /*
       2:  * Copyright (c) 1980 Regents of the University of California.
       3:  * All rights reserved.  The Berkeley software License Agreement
       4:  * specifies the terms and conditions for redistribution.
       5:  *
       6:  *	@(#)machine.h	5.1 (Berkeley) 6/6/85
       7:  */
       8:
       9: /*
      10:  * Definitions for the machine module.
      11:  *
      12:  * This module has the low level machine interface.  This consists
      13:  * mostly of dealing with machine instructions and also setting
      14:  * and unsetting breakpoints.
      15:  */
      16:
      17: ADDRESS pc;         /* current program counter */
      18: LINENO curline;         /* line number associated with pc */
      19: SYM *curfunc;           /* pointer to active function symbol */
      20: short errnum;           /* current error number */
      21:
      22: setbp();            /* set a breakpoint */
      23: unsetbp();          /* unset a breakpoint */
      24: BOOLEAN isbperr();      /* test if a breakpoint has occurred */
      25: printerror();           /* print out an execution error message */
      26: ADDRESS nextaddr();     /* address of next line to be executed */
      27: BOOLEAN isendofproc();      /* test if address is at end of procedure */
      28: printinst(), printninst();  /* print the instruction at a given address */
      29: printdata(), printndata();  /* print the contents of a given data address */

#### Defined variables

errnum defined in line 20; never used

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