//	bfe2 - control buttons//	Copyright (c) 1999-2003 Brand Huntsman and Lee Salzman//#include "common.h"#include "functions.h"//////////////////////////////////////////////////////////////////////////// globalGtkWidget *physical_text, *virtual_text, *instruction_text;uint32 i_virtual_segment, i_virtual_offset, i_physical_address;char i_bytes[LEN_INSTRUCTION], i_description[LEN_INSTRUCTION];// localGtkWidget *go_button, *stop_button, *step_button, *next_button;uint i_size, enable_next, next_active;uint32 next_physical;//////////////////////////////////////////////////////////////////////////void copy_instruction_string( char *buffer, char *string, const char delimiter ){	char *end;	uint i;	end = string + LEN_INSTRUCTION;	for(i = 0; string < end && buffer[i] != delimiter; i++, string++)		*string = buffer[i];	if(string == end) *(string-1) = '\0';	else *string = '\0';	return;}void set_ctrl_running( gboolean v ){	if(v == TRUE){		gtk_entry_set_text(GTK_ENTRY(physical_text), "");		gtk_entry_set_text(GTK_ENTRY(virtual_text), "");		gtk_entry_set_text(GTK_ENTRY(instruction_text), ".. r u n n i n g ..");		gtk_widget_set_sensitive(stop_button, TRUE);		v = FALSE;	} else {		gtk_widget_set_sensitive(stop_button, FALSE);		v = TRUE;	}	gtk_widget_set_sensitive(go_button, v);	gtk_widget_set_sensitive(step_button, v);	if(enable_next) gtk_widget_set_sensitive(next_button, v);	else gtk_widget_set_sensitive(next_button, FALSE);	gtk_widget_set_sensitive(refreshall_button, v);	breakpointsEnablePage(v);	watchpointsEnablePage(v);	memoryEnablePage(v);	structuresEnablePage(v);	prefsEnablePage(v);}void ctrl_go( GtkWidget *widget, gpointer data ){	bochs_running = 1;	set_ctrl_running(TRUE);	fprintf(writepipe, "c\n");	fgetc(readpipe);	hook_sigio();	historyWrite("GO...");}void ctrl_stop( GtkWidget *widget, gpointer data ){	ctrlStop(0);}void ctrl_step( GtkWidget *widget, gpointer data ){	fprintf(writepipe, "s\n");	ctrlGetInstruction();}void ctrl_next( GtkWidget *widget, gpointer data ){	next_physical = i_physical_address + i_size;	fprintf(writepipe, "pb 0x%X\n", next_physical);	#ifdef __DEBUG__	 g_print("BFE DEBUG: (NEXT) pb 0x%X\n", next_physical);	#endif	prompt_read();	next_active = 1;	bochs_running = 1;	set_ctrl_running(TRUE);	fprintf(writepipe, "c\n");	hook_sigio();	historyWrite("NEXT...");}void read_instruction( ){	char buffer[LEN_BUFFER], address[LEN_ADDRESS], *word;	uint i, ii;	enable_next = 0;	gtk_widget_set_sensitive(next_button, FALSE);	if(bochs_offline) return;	i = 0;	fgets(buffer, LEN_BUFFER, readpipe); // get "Next at t=1"	fgets(buffer, LEN_BUFFER, readpipe); // get instruction	// skip (0)	if(buffer[i] == '(') goto_next_word(buffer, &i);	// get physical address	if(sscanf(&buffer[i], "[0x%x] ", &i_physical_address) != 1) return;	goto_next_word(buffer, &i);	// get virtual address	if(sscanf(&buffer[i], "%x:%x ", &i_virtual_segment, &i_virtual_offset) != 2) return;	goto_next_word(buffer, &i);	// display physical and virtual addresses	snprintf(address, LEN_ADDRESS, "%.8X", i_physical_address);	gtk_entry_set_text(GTK_ENTRY(physical_text), address);	snprintf(address, LEN_ADDRESS, "%.4X:%.8X", i_virtual_segment, i_virtual_offset);	gtk_entry_set_text(GTK_ENTRY(virtual_text), address);	// skip (unk. ctxt):	if(buffer[i] == '('){		goto_next_word(buffer, &i);		goto_next_word(buffer, &i);	}	// get instruction	copy_instruction_string(&buffer[i], i_description, ';');	if(*i_description == '\0') return;	ii = i;	// enable NEXT button for special instructions	get_word(buffer, &i, &word);	if(string_compare(word, "call") || string_compare(word, "int")	   || string_compare(word, "rep:") || string_compare(word, "loop")	   || (word[0] == 'j' && !string_compare(word, "jmp"))){		enable_next = 1;		gtk_widget_set_sensitive(next_button, TRUE);	}	// get instruction size	i = ii + strlen(i_description) + 2;	sscanf(&buffer[i], "%*x%n", &i_size);	i_size /= 2;	copy_instruction_string(&buffer[i], i_bytes, '\n');	goto_next_word(buffer, &i);	// display instruction	clip_whitespace(i_description);	gtk_entry_set_text(GTK_ENTRY(instruction_text), i_description);	return;}//////////////////////////////////////////////////////////////////////////void ctrlInit( GtkWidget *box ){	GtkWidget *hbox;	hbox = new_hbox(box, FALSE);	// physical address text field	physical_text = new_text_entry(hbox, FALSE, WLEN_REGISTER);	gtk_entry_set_editable(GTK_ENTRY(physical_text), FALSE);	// virtual address text field	virtual_text = new_text_entry(hbox, FALSE, WLEN_DTABLE);	gtk_entry_set_editable(GTK_ENTRY(virtual_text), FALSE);	// instruction text field	instruction_text = new_text_entry(hbox, TRUE, 0);	gtk_entry_set_editable(GTK_ENTRY(instruction_text), FALSE);	// go button	go_button = new_button(hbox, FALSE, " Go ");	gtk_signal_connect(GTK_OBJECT(go_button), "clicked", GTK_SIGNAL_FUNC(ctrl_go), NULL);	// stop button	stop_button = new_button(hbox, FALSE, " Stop ");	gtk_signal_connect(GTK_OBJECT(stop_button), "clicked", GTK_SIGNAL_FUNC(ctrl_stop), NULL);	// step button	step_button = new_button(hbox, FALSE, " Step ");	gtk_signal_connect(GTK_OBJECT(step_button), "clicked", GTK_SIGNAL_FUNC(ctrl_step), NULL);	// next button	next_button = new_button(hbox, FALSE, " Next ");	gtk_signal_connect(GTK_OBJECT(next_button), "clicked", GTK_SIGNAL_FUNC(ctrl_next), NULL);	enable_next = 0;	next_active = 0;}void ctrlStop( uint sigio ){	char buffer[LEN_BUFFER], watch[10];	uint bp, n, i, wp, wptype;	unhook_sigio();	bochs_running = 0;	if(!sigio){		// stop button was pressed, send ctrl-C to bochs		kill(bochs_pid, SIGINT);		ctrlGetInstruction();	} else {		// read breakpoint info		fgets(buffer, LEN_BUFFER, readpipe);		if(sscanf(buffer, "%*s Breakpoint %u,", &bp) == 1){			ctrlGetInstruction();			if(next_active && i_physical_address == next_physical){				// delete breakpoint that was used by the NEXT button				fprintf(writepipe, "d %u\n", bp);				prompt_read();				next_active = 0;			} else {				// encountered a normal breakpoint, mark in list				historyWrite("Stopped on a breakpoint");				breakpointsUpdate(BP_REDRAW);				for(n = 0; n < MAX_BREAKPOINTS && breakpoints[n].enabled; n++)					if(bp == breakpoints[n].number) break;				breakpointsSelect(n);			}		} else if(sscanf(buffer, "%*s Caught %s watch point at %x", watch, &wp) == 2){			ctrlGetInstruction();			// encountered a watchpoint, mark in list			historyWrite("Stopped on a watchpoint");			watchpointsUpdate(BP_REDRAW);			if(string_compare(watch, "read")) wptype = WP_READ;			else wptype = WP_WRITE;			for(n = 0; n < MAX_WATCHPOINTS && watchpoints[n].enabled; n++)				if(wptype == watchpoints[n].type && wp == watchpoints[n].offset) break;			watchpointsSelect(n);		} else if(tracing){			// tracing is on			i = 0;			if(buffer[i] == '(') goto_next_word(buffer, &i);			sscanf(&buffer[i], "[0x%x] ", &i_physical_address);			goto_next_word(buffer, &i);			sscanf(&buffer[i], "%x:%x ", &i_virtual_segment, &i_virtual_offset);			goto_next_word(buffer, &i);			if(buffer[i] == '('){				goto_next_word(buffer, &i);				goto_next_word(buffer, &i);			}			copy_instruction_string(&buffer[i], i_description, ';');			i += strlen(i_description) + 2;			sscanf(&buffer[i], "%*x%n", &i_size);			i_size /= 2;			copy_instruction_string(&buffer[i], i_bytes, '\n');			goto_next_word(buffer, &i);			clip_whitespace(i_description);			historyUpdate();			bochs_running = 1;			hook_sigio();			return;		} else {			// dont know what happened here		}	}	set_ctrl_running(FALSE);}void ctrlEnableControls( gboolean v ){	if(v == FALSE){		gtk_entry_set_text(GTK_ENTRY(physical_text), "");		gtk_entry_set_text(GTK_ENTRY(virtual_text), "");		gtk_entry_set_text(GTK_ENTRY(instruction_text), ".. o f f l i n e ..");                gtk_widget_set_sensitive(stop_button, FALSE);	}	gtk_widget_set_sensitive(go_button, v);	gtk_widget_set_sensitive(step_button, v);	if(enable_next) gtk_widget_set_sensitive(next_button, v);	else gtk_widget_set_sensitive(next_button, FALSE);}void ctrlGetInstruction( ){	if(bochs_offline) return;	#ifdef __DEBUG__	 g_print("BFE DEBUG: (UPDATE) prompt = %u\n", p_step);	#endif	read_instruction();	prompt_read();	stateUpdate();	historyUpdate();}