#include <string.h>#include <stdio.h>#include "jtagmon.h"enum tap_states {	TEST_LOGIC_RESET,	RUN_TEST_IDLE,	SELECT_DR,	CAPTURE_DR,	SHIFT_DR,	EXIT1_DR,	PAUSE_DR,	EXIT2_DR,	UPDATE_DR,	SELECT_IR,	CAPTURE_IR,	SHIFT_IR,	EXIT1_IR,	PAUSE_IR,	EXIT2_IR,	UPDATE_IR};void jtagmon(unsigned char tck, unsigned char tms, unsigned char tdi) {	static unsigned char last_tck = 1;	static char tdi_written = 0;	static int state = TEST_LOGIC_RESET;	static char state_text[32] = "Test Logic Reset";	char last_state_text[32];	int last_state = state;	strcpy(last_state_text, state_text);	if (!last_tck && tck) {		switch(state) {			case TEST_LOGIC_RESET:				if (tms) {					state = TEST_LOGIC_RESET;				} else {					state = RUN_TEST_IDLE;				}				break;			case RUN_TEST_IDLE:				if (tms) {					state = SELECT_DR;				} else {					state = RUN_TEST_IDLE;				}				break;			case SELECT_DR:				if (tms) {					state = SELECT_IR;				} else {					state = CAPTURE_DR;				}				break;			case CAPTURE_DR:				if (tms) {					state = EXIT1_DR;				} else {					state = SHIFT_DR;				}				break;			case SHIFT_DR:				if (tms) {					state = EXIT1_DR;				} else {					state = SHIFT_DR;				}				break;			case EXIT1_DR:				if (tms) {					state = UPDATE_DR;				} else {					state = PAUSE_DR;				}				break;			case PAUSE_DR:				if (tms) {					state = EXIT2_DR;				} else {					state = PAUSE_DR;				}				break;			case EXIT2_DR:				if (tms) {					state = UPDATE_DR;				} else {					state = SHIFT_DR;				}				break;			case UPDATE_DR:				if (tms) {					state = SELECT_DR;				} else {					state = RUN_TEST_IDLE;				}				break;			case SELECT_IR:				if (tms) {					state = TEST_LOGIC_RESET;				} else {					state = CAPTURE_IR;				}				break;			case CAPTURE_IR:				if (tms) {					state = EXIT1_IR;				} else {					state = SHIFT_IR;				}				break;			case SHIFT_IR:				if (tms) {					state = EXIT1_IR;				} else {					state = SHIFT_IR;				}				break;			case EXIT1_IR:				if (tms) {					state = UPDATE_IR;				} else {					state = PAUSE_IR;				}				break;			case PAUSE_IR:				if (tms) {					state = EXIT2_IR;				} else {					state = PAUSE_IR;				}				break;			case EXIT2_IR:				if (tms) {					state = UPDATE_IR;				} else {					state = SHIFT_IR;				}				break;			case UPDATE_IR:				if (tms) {					state = SELECT_DR;				} else {					state = RUN_TEST_IDLE;				}				break;		}		switch(state) {			case TEST_LOGIC_RESET:				strcpy(state_text, "Test Logic Reset");				break;			case RUN_TEST_IDLE:				strcpy(state_text, "Run-Test / Idle");				break;			case SELECT_DR:				strcpy(state_text, "Select-DR");				break;			case CAPTURE_DR:				strcpy(state_text, "Capture-DR");				break;			case SHIFT_DR:				strcpy(state_text, "Shift-DR");				break;			case EXIT1_DR:				strcpy(state_text, "Exit1-DR");				break;			case PAUSE_DR:				strcpy(state_text, "Pause-DR");				break;			case EXIT2_DR:				strcpy(state_text, "Exit2-DR");				break;			case UPDATE_DR:				strcpy(state_text, "Update-DR");				break;			case SELECT_IR:				strcpy(state_text, "Select-IR");				break;			case CAPTURE_IR:				strcpy(state_text, "Capture-IR");				break;			case SHIFT_IR:				strcpy(state_text, "Shift-IR");				break;			case EXIT1_IR:				strcpy(state_text, "Exit1-IR");				break;			case PAUSE_IR:				strcpy(state_text, "Pause-IR");				break;			case EXIT2_IR:				strcpy(state_text, "Exit2-IR");				break;			case UPDATE_IR:				strcpy(state_text, "Update-IR");				break;		}		if (last_state != state) {			if (tdi_written)				fprintf(stderr,"\n");			fprintf(stderr,"TAP state transition from %s to %s\n", last_state_text, state_text);			tdi_written = 0;		} else {			fprintf(stderr,"%d",(tdi ? 1 : 0));			tdi_written = 1;		}	}	last_tck = tck;}