int main(int argc,char *argv[],char *envp[]) {
rdtsc_t start,measure,ticks_per_sec;
unsigned char force = 0;
double t;
int c;
{
int i = 1;
char *a;
while (i < argc) {
a = argv[i++];
if (*a == '-') {
do { a++; } while (*a == '-');
if (!strcmp(a,"f") || !strcmp(a,"force"))
force = 1;
else
return 1;
}
else {
return 1;
}
}
}
cpu_probe();
printf("Your CPU is basically a %s or higher\n",cpu_basic_level_to_string(cpu_basic_level));
if (cpu_v86_active)
printf(" - Your CPU is currently running me in virtual 8086 mode\n");
if (force) {
printf(" - You're forcing me to use RDTSC. I may crash if your CPU doesn't\n");
printf(" support it or the environment doesn't enable it.\n");
printf(" OK! Here we go....!\n");
}
else {
if (!(cpu_flags & CPU_FLAG_CPUID)) {
printf(" - Your CPU doesn't support CPUID, how can it support RDTSC?\n");
return 1;
}
if (!(cpu_cpuid_features.a.raw[2] & 0x10)) {
printf(" - Your CPU does not support RDTSC\n");
return 1;
}
if (cpu_flags & CPU_FLAG_DONT_USE_RDTSC) {
printf(" - Your CPU does support RDTSC but it's not recommended in this environment.\n");
printf(" This is usually due to running a 16-bit build in pure DOS under EMM386.EXE.\n");
return 1;
}
}
#if defined(TARGET_OS2)
# if TARGET_MSDOS == 32
/* OS/2 32-bit: We can use DosQuerySysInfo() */
printf("Measuring CPU speed, using DosQuerySysInfo(), over 3 seconds\n");
{
ULONG startTick,tmp;
start = cpu_rdtsc();
startTick = GetMsCount();
do { tmp = GetMsCount();
} while ((tmp - startTick) < 3000); /* NTS: <- I know this rolls over in 49 days,
the math though should overflow the 32-bit integer and produce correct results anyway */
measure = cpu_rdtsc();
/* use the precise tick count to better compute ticks_per_sec */
ticks_per_sec = ((measure - start) * 1000ULL) / ((rdtsc_t)(tmp - startTick));
printf("Measurement: %lums = %lld ticks\n",tmp - startTick,(int64_t)ticks_per_sec);
printf(" From 0x%llX to 0x%llX\n",start,measure);
}
# else
/* OS/2 16-bit: There is no API (that I know of) to get tick count. Use system clock. */
printf("Measuring CPU speed, using system clock with 1-second resolution, across 3 seconds\n");
{
time_t startTick,tmp;
/* wait for the immediate start of a one-second tick, then record RDTSC and count until 3 seconds */
startTick = time(NULL);
do { tmp = time(NULL); } while (tmp == startTick);
start = cpu_rdtsc(); startTick = tmp;
/* NOW! Count 3 seconds and measure CPU ticks */
do { tmp = time(NULL);
} while ((tmp - startTick) < 3);
measure = cpu_rdtsc();
/* use the precise tick count to better compute ticks_per_sec */
ticks_per_sec = ((measure - start) * 1ULL) / ((rdtsc_t)(tmp - startTick));
printf("Measurement: %lu seconds = %lld ticks\n",tmp - startTick,(int64_t)ticks_per_sec);
printf(" From 0x%llX to 0x%llX\n",start,measure);
}
# endif
#elif defined(TARGET_WINDOWS)
# if TARGET_MSDOS == 16
/* Windows 2.x/3.0/3.1: Use GetTickCount() or
* Windows 3.1: Use TOOLHELP.DLL TimerCount() which is more accurate (really?) */
if (ToolHelpInit()) {
TIMERINFO ti;
ti.dwSize = sizeof(ti);
printf("Measuring CPU speed, using TOOLHELP TimerCount() over 1 second\n");
{
DWORD startTick,tmp;
start = cpu_rdtsc();
if (!__TimerCount(&ti)) {
printf("TimerCount() failed\n");
return 1;
}
startTick = ti.dwmsSinceStart;
do {
# if defined(WIN_STDOUT_CONSOLE)
_win_pump(); /* <- you MUST call this. The message pump must run, or else the timer won't advance and this loop will run forever.
The fact that GetTickCount() depends on a working message pump under Windows 3.1 seems to be a rather serious
oversight on Microsoft's part. Note that the problem described here does not apply to Windows 9x/ME. Also note
the Toolhelp function TimerCount() relies on GetTickCount() as a basic for time (though Toolhelp uses VxD services
or direct I/O port hackery to refine the timer count) */
# endif
if (!__TimerCount(&ti)) {
printf("TimerCount() failed\n");
return 1;
}
tmp = ti.dwmsSinceStart;
} while ((tmp - startTick) < 1000); /* NTS: <- I know this rolls over in 49 days,
the math though should overflow the 32-bit integer and produce correct results anyway */
measure = cpu_rdtsc();
/* use the precise tick count to better compute ticks_per_sec */
ticks_per_sec = ((measure - start) * 1000ULL) / ((rdtsc_t)(tmp - startTick));
printf("Measurement: %lums = %lld ticks\n",tmp - startTick,(int64_t)ticks_per_sec);
printf(" From 0x%llX to 0x%llX\n",start,measure);
}
}
else {
# else
{
# endif
printf("Measuring CPU speed, using GetTickCount() over 3 second\n");
{
DWORD startTick,tmp;
start = cpu_rdtsc();
startTick = GetTickCount();
/* NTS: Dunno yet about Windows 3.1, but Windows 95 seems to require we Yield(). If we don't, the GetTickCount() return
* value never updates and we're forever stuck in a loop. */
do {
# if defined(WIN_STDOUT_CONSOLE)
_win_pump(); /* <- you MUST call this. The message pump must run, or else the timer won't advance and this loop will run forever.
The fact that GetTickCount() depends on a working message pump under Windows 3.1 seems to be a rather serious
oversight on Microsoft's part. Note that the problem described here does not apply to Windows 9x/ME */
# endif
tmp = GetTickCount();
} while ((tmp - startTick) < 3000); /* NTS: <- I know this rolls over in 49 days,
the math though should overflow the 32-bit integer and produce correct results anyway */
measure = cpu_rdtsc();
/* use the precise tick count to better compute ticks_per_sec */
ticks_per_sec = ((measure - start) * 1000ULL) / ((rdtsc_t)(tmp - startTick));
printf("Measurement: %lums = %lld ticks\n",tmp - startTick,(int64_t)ticks_per_sec);
printf(" From 0x%llX to 0x%llX\n",start,measure);
}
}
#else
/* MS-DOS: Init the 8254 timer library for precise measurement */
if (!probe_8254()) {
printf("Cannot init 8254 timer\n");
return 1;
}
/* DOSBox-X and most motherboards leave the PIT in a mode that counts down by 2.
* Our code sets the counter and puts it in a mode that counts down by 1.
* We have to do this or our wait functions exit in half the time (which explains
* why testing this code in DOSBox-X often comes up with RDTSC running at 2x
* normal speed. */
write_8254_system_timer(0); /* 18.2 tick/sec on our terms (proper PIT mode) */
printf("Measuring CPU speed (relative to 8254 timer)\n");
_cli();
start = cpu_rdtsc();
t8254_wait(t8254_us2ticks(1000000));
measure = cpu_rdtsc();
_sti();
printf("Measurement: 1 sec = %lld ticks\n",(int64_t)(measure - start));
printf(" From 0x%llX to 0x%llX\n",start,measure);
ticks_per_sec = (measure - start);
#endif
if ((int64_t)ticks_per_sec < 0) {
printf("Cannot determine CPU cycle count\n");
ticks_per_sec = 100000ULL;
}
while (1) {
measure = cpu_rdtsc();
t = (double)((int64_t)(measure - start));
t /= ticks_per_sec;
printf("\x0D" "0x%llX = %.3f ",measure,t);
#if !defined(WINFCON_STOCK_WIN_MAIN)
fflush(stdout); /* FIXME: The fake console code should intercept fflush() too */
#endif
if (kbhit()) {
c = getch();
if (c == 0) c = getch() << 8;
if (c == 27)
break;
else if (c == 'r' || c == 'R') {
if (c == 'r' || (cpu_flags & CPU_FLAG_DONT_WRITE_RDTSC)) {
printf("\nI am not able to write the TSC register within this environment\nYou can force me by typing SHIFT+R, don't blame me when I crash...\n");
}
else {
printf("\nUsing MSR to reset TSC to 0\n");
/* demonstrating WRMSR to write the TSC (yes, you can!) */
cpu_rdtsc_write(start = 0ULL);
printf("Result: 0x%llX\n",cpu_rdtsc());
}
}
else if (c == 's') {
if (c == 's' && (cpu_flags & CPU_FLAG_DONT_WRITE_RDTSC)) {
printf("\nI am not able to write the TSC register within this environment\nYou can force me by typing SHIFT+S, don't blame me when I crash...\n");
}
else {
printf("\nUsing MSR to reset TSC to 0x123456789ABCDEF\n");
/* demonstrating WRMSR to write the TSC (yes, you can!) */
cpu_rdtsc_write(start = 0x123456789ABCDEFULL);
printf("Result: 0x%llX\n",cpu_rdtsc());
}
}
}
}
printf("\n");
return 0;
}
int main() {
struct t8254_readback_t readback;
t8254_time_t tick[3];
unsigned int i;
printf("8254 library test program\n");
if (!probe_8254()) {
printf("Chip not present. Your computer might be 2010-era hardware that dropped support for it.\n");
return 1;
}
if (!probe_8259()) {
printf("8259 interrupt controller not present. Your computer might be 2010-era hardware that dropped support for it.\n");
return 1;
}
printf("8254 base clock: %luHz\n",T8254_REF_CLOCK_HZ);
speaker_rate = T8254_REF_CLOCK_HZ / 400UL; /* 400Hz */
prev_irq0 = _dos_getvect(T8254_IRQ+0x08);
_dos_setvect(T8254_IRQ+0x8,irq0);
_cli();
write_8254_pc_speaker(speaker_rate);
write_8254_system_timer(max);
_sti();
#ifdef TARGET_PC98
/* PC-98 does not have IRQ0 running by default */
p8259_unmask(T8254_IRQ);
#endif
while (1) {
if (kbhit()) {
int c = getch();
if (c == 27)
break;
else if (c == '-') {
max -= 80;
if (max > (0xFFFF-80))
max = 0xFFFF;
_cli();
write_8254_system_timer(max);
_sti();
}
else if (c == '=') {
max += 110;
if (max < 110 || max > (0xFFFF-110))
max = 0xFFFF;
_cli();
write_8254_system_timer(max);
_sti();
}
/* play with timer 2 and the PC speaker gate */
else if (c == 'p') {
unsigned char on = (t8254_pc_speaker_read_gate() != 0) ? 1 : 0;
if (on) t8254_pc_speaker_set_gate(0);
else t8254_pc_speaker_set_gate(3);
}
else if (c == '1') {
#ifndef TARGET_PC98
unsigned char v = t8254_pc_speaker_read_gate();
t8254_pc_speaker_set_gate(v ^ PC_SPEAKER_OUTPUT_TTL_AND_GATE);
#endif
}
else if (c == '2') {
#ifndef TARGET_PC98
unsigned char v = t8254_pc_speaker_read_gate();
t8254_pc_speaker_set_gate(v ^ PC_SPEAKER_COUNTER_2_GATE);
#endif
}
else if (c == '[') {
speaker_rate += 110;
if (speaker_rate > (0xFFFF-110) || speaker_rate < 110)
speaker_rate = 0xFFFF;
write_8254_pc_speaker(speaker_rate);
}
else if (c == ']') {
speaker_rate -= 110;
if (speaker_rate > (0xFFFF-110))
speaker_rate = 0;
write_8254_pc_speaker(speaker_rate);
}
else if (c == 'w') {
printf("\n");
pulse_width_test();
_cli();
write_8254_system_timer(max);
_sti();
printf("\n");
}
else if (c == 'z') {
/* sleep-wait loop test */
unsigned long delay_ticks;
unsigned long z;
unsigned int c,cmax;
printf("\nDelay interval in us? ");
z = 1000000; scanf("%lu",&z);
delay_ticks = t8254_us2ticks(z);
printf(" %lu = %lu ticks\n",z,delay_ticks);
if (delay_ticks == 0UL) cmax = (unsigned int)(T8254_REF_CLOCK_HZ / 20UL);
else cmax = (unsigned int)(T8254_REF_CLOCK_HZ / 20UL / (unsigned long)delay_ticks);
if (cmax == 0) cmax = 1;
write_8254_pc_speaker(T8254_REF_CLOCK_HZ / 400UL); /* tick as fast as possible */
while (1) {
if (kbhit()) {
if (getch() == 27) break;
}
for (c=0;c < cmax;c++) {
t8254_pc_speaker_set_gate(3);
t8254_wait(delay_ticks);
t8254_pc_speaker_set_gate(0);
t8254_wait(delay_ticks);
}
}
}
else if (c == 'd') {
printf("\n \nDetail mode, hit 'd' again to exit: [WARNING: 8254 only]\n");
while (1) {
if (kbhit()) {
int c = getch();
if (c == 'd') {
break;
}
}
_cli();
readback_8254(T8254_READBACK_ALL,&readback);
_sti();
printf("\x0D");
for (i=0;i <= 2;i++) {
printf("[%u] stat=%02x count=%04x ",i,
readback.timer[i].status,
readback.timer[i].count);
}
fflush(stdout);
}
printf("\n");
}
}
for (i=0;i <= 2;i++) tick[i] = read_8254(i);
/* BUG: DOSBox/DOSBox-X appear to have a bug where the PC speaker readback toggles
* regardless of the GATE input to Counter 2. Bring GATE low (setting bit 1
* of port 61h to 0) is supposed to cause Counter 2 to stop. The AND gate
* after the output (bit 0 of port 61h) is not supposed to affect the readback. */
printf("\x0D %04x %04x %04x max=%04x count=%04x SPKR=%u",tick[0],tick[1],tick[2],
max,counter,read_8254_pc_speaker_output()!=0?1:0);
fflush(stdout);
}
printf("\n");
#ifdef TARGET_PC98
/* PC-98 does not have IRQ0 running by default */
p8259_mask(T8254_IRQ);
#endif
_cli();
write_8254_pc_speaker(0);
t8254_pc_speaker_set_gate(0);
_dos_setvect(T8254_IRQ+0x8,prev_irq0);
_sti();
write_8254_system_timer(0xFFFF); /* restore normal function to prevent BIOS from going crazy */
return 0;
}
int main(int argc,char **argv,char **envp) {
unsigned int patience;
char tmps[128];
uint32_t tmp;
probe_dos();
detect_windows();
if (windows_mode == WINDOWS_NT) {
printf("This program is not compatible with Windows NT\n");
return 1;
}
#if defined(TARGET_WINDOWS) && TARGET_MSDOS == 32 && !defined(WIN386)
#else
if (!probe_8254()) {
printf("8254 not found (I need this for time-sensitive portions of the driver)\n");
return 1;
}
#endif
if (!probe_dosbox_id()) {
printf("DOSBox integration device not found\n");
return 1;
}
printf("DOSBox integration device found at I/O port %xh\n",dosbox_id_baseio);
if (probe_dosbox_id_version_string(tmps,sizeof(tmps)))
printf("DOSBox version string: '%s'\n",tmps);
else
printf("DOSBox version string N/A\n");
/* first check that the screenshot function is available */
dosbox_id_write_regsel(DOSBOX_ID_REG_SCREENSHOT_TRIGGER);
tmp = dosbox_id_read_data();
if (tmp & DOSBOX_ID_SCREENSHOT_STATUS_NOT_AVAILABLE) {
printf("DOSBox screenshot control register not available\n");
return 1;
}
else if (tmp & DOSBOX_ID_SCREENSHOT_STATUS_NOT_ENABLED) {
printf("DOSBox screenshot control register not enabled\n");
return 1;
}
if (tmp & DOSBOX_ID_SCREENSHOT_STATUS_IMAGE_IN_PROGRESS)
printf("WARNING: Screenshot already in progress\n");
printf("Triggering DOSBox screenshot function\n");
dosbox_id_debug_message("Triggering screenshot function\n");
/* trigger it */
dosbox_id_write_regsel(DOSBOX_ID_REG_SCREENSHOT_TRIGGER);
dosbox_id_write_data(DOSBOX_ID_SCREENSHOT_IMAGE);
/* did it trigger it? */
dosbox_id_write_regsel(DOSBOX_ID_REG_SCREENSHOT_TRIGGER);
tmp = dosbox_id_read_data();
if (!(tmp & DOSBOX_ID_SCREENSHOT_STATUS_IMAGE_IN_PROGRESS)) {
printf("DOSBox screenshot trigger failed.\n");
return 1;
}
/* wait for the screenshot to happen.
* DOSBox will write the screenshot when VGA vertical retrace happens, which should be 1/70th of a second.
* So if it doesn't happen within 1 second, then it failed. */
#if defined(TARGET_WINDOWS) && TARGET_MSDOS == 32 && !defined(WIN386)
patience = 10; /* 1 second (10 x 100ms) (Windows 9x scheduler isn't THAT good!) */
#else
patience = 1000; /* 1 second (1000 x 1ms) */
#endif
do {
if (--patience == 0) {
printf("DOSBox failed to take screenshot (timeout)\n");
return 1;
}
#if defined(TARGET_WINDOWS) && TARGET_MSDOS == 32 && !defined(WIN386)
Sleep(100); /* 100ms */
#else
t8254_wait(t8254_us2ticks(1000)); /* 1ms */
#endif
dosbox_id_write_regsel(DOSBOX_ID_REG_SCREENSHOT_TRIGGER);
tmp = dosbox_id_read_data();
} while (tmp & DOSBOX_ID_SCREENSHOT_STATUS_IMAGE_IN_PROGRESS);
printf("Screenshot done\n");
return 0;
}