1*48104Sbostic /*- 2*48104Sbostic * Copyright (c) 1980 The Regents of the University of California. 3*48104Sbostic * All rights reserved. 422570Sdist * 5*48104Sbostic * %sccs.include.redist.c% 6*48104Sbostic * 7*48104Sbostic * @(#)machine.h 5.4 (Berkeley) 04/16/91 822570Sdist */ 95451Slinton 105451Slinton /* 115451Slinton * Definitions for the machine module. 125451Slinton * 135451Slinton * This module has the low level machine interface. This consists 145451Slinton * mostly of dealing with machine instructions and also setting 155451Slinton * and unsetting breakpoints. 165451Slinton */ 175451Slinton 185451Slinton ADDRESS pc; /* current program counter */ 195451Slinton LINENO curline; /* line number associated with pc */ 205451Slinton SYM *curfunc; /* pointer to active function symbol */ 215451Slinton 2233243Sbostic int setbp(); /* set a breakpoint */ 2333243Sbostic int unsetbp(); /* unset a breakpoint */ 245451Slinton BOOLEAN isbperr(); /* test if a breakpoint has occurred */ 2533243Sbostic int printerror(); /* print out an execution error message */ 265451Slinton ADDRESS nextaddr(); /* address of next line to be executed */ 276079Slinton BOOLEAN isendofproc(); /* test if address is at end of procedure */ 2833243Sbostic int printinst(), printninst(); /* print the instruction at a given address */ 2933243Sbostic int printdata(), printndata(); /* print the contents of a given data address */ 30