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Annotation of 42BSD/ucb/pascal/pdx/machine.h, revision 1.1

1.1     ! root        1: /* Copyright (c) 1982 Regents of the University of California */
        !             2: 
        !             3: /* static char sccsid[] = "@(#)machine.h 1.3 3/8/82"; */
        !             4: 
        !             5: /*
        !             6:  * Definitions for the machine module.
        !             7:  *
        !             8:  * This module has the low level machine interface.  This consists
        !             9:  * mostly of dealing with machine instructions and also setting
        !            10:  * and unsetting breakpoints.
        !            11:  */
        !            12: 
        !            13: ADDRESS pc;                    /* current program counter */
        !            14: LINENO curline;                        /* line number associated with pc */
        !            15: SYM *curfunc;                  /* pointer to active function symbol */
        !            16: short errnum;                  /* current error number */
        !            17: 
        !            18: setbp();                       /* set a breakpoint */
        !            19: unsetbp();                     /* unset a breakpoint */
        !            20: BOOLEAN isbperr();             /* test if a breakpoint has occurred */
        !            21: printerror();                  /* print out an execution error message */
        !            22: ADDRESS nextaddr();            /* address of next line to be executed */
        !            23: BOOLEAN isendofproc();         /* test if address is at end of procedure */
        !            24: printinst(), printninst();     /* print the instruction at a given address */
        !            25: printdata(), printndata();     /* print the contents of a given data address */

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