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Annotation of 42BSD/ucb/pascal/pdx/machine.h, revision 1.1.1.1

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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