int m68k_raise_irq(int level, int vector)
{
M68KCONTEXT.interrupts[0] |= 1 << level;
m68k_irq_update(0);
dprintf("lvl: %i, line: %i, irqs: %02x", level, m68k_context.irq, M68KCONTEXT.interrupts[0]);
return 0;
}
int m68k_lower_irq(int level)
{
M68KCONTEXT.interrupts[0] &= ~(1 << level);
m68k_irq_update(0);
dprintf("lvl: %i, line: %i, irqs: %02x", level, m68k_context.irq, M68KCONTEXT.interrupts[0]);
return 0;
}
static int irq_ack(int level)
{
M68KCONTEXT.interrupts[0] &= ~(1 << level);
m68k_irq_update(0);
dprintf("level: %i, irqs: %02x", level, M68KCONTEXT.interrupts[0]);
return CYCLONE_INT_ACK_AUTOVECTOR;
}
static void uae4all_reset(void)
{
int i;
#if !defined(USE_CYCLONE_CORE) && !defined(USE_FAME_CORE_ARM2)
m68k_set_context(&micontexto);
#endif
m68k_reset();
for(i=1; i<8; i++)
#if defined(DEBUG_INTERRUPTS)
M68KCONTEXT.interrupts[i]=0xFF;
#else
M68KCONTEXT.interrupts[i]=0x18+i;
#endif
M68KCONTEXT.interrupts[0]=0;
m68k_irq_update(0);
mispcflags=0;
_68k_areg(7) = get_long (0x00f80000);
_68k_setpc(get_long (0x00f80004));
//_68k_sreg = 0x2700; // already done by m68k_reset()
mispcflags=0;
#ifdef DEBUG_FRAMERATE
uae4all_update_time();
#endif
}
static void m68k_run (void)
{
uae4all_reset ();
unsigned cycles, cycles_actual=M68KCONTEXT.cycles_counter;
for (;;) {
#ifdef DEBUG_M68K
dbg_cycle(m68k_fetch(m68k_get_pc(),0));
m68k_emulate(1);
#else
uae4all_prof_start(0);
cycles = nextevent - currcycle;
switch (timeslice_mode) {
case 3:
cycles>>=6;
break;
case 2:
cycles>>=7;
break;
case 1:
cycles=(cycles>>8)+(cycles>>9);
break;
default:
cycles>>=8;
break;
}
#define NDEBUG_CYCLES
#ifdef DEBUG_CYCLES
static unsigned next_cycles = 60000000;
if (M68KCONTEXT.cycles_counter > next_cycles) {
next_cycles += 100000;
printf("cycles=%9d|%03i|%03i, pc=%.6x\n", M68KCONTEXT.cycles_counter, cycles, IO_CYCLE, _68k_getpc());
}
if (M68KCONTEXT.cycles_counter > 80000000) {
// exit(0);
}
if (M68KCONTEXT.cycles_counter >= 500000000) {
// do_debug = 1;
}
#endif
#if defined(FAME_INTERRUPTS_SECURE_PATCH) && defined(FAME_INTERRUPTS_PATCH)
if (uae4all_go_interrupt)
m68k_emulate(FAME_INTERRUPTS_PATCH);
else
#endif
m68k_emulate(cycles);
uae4all_prof_end(0);
#endif
#if 0 // def FAME_INTERRUPTS_PATCH
if (uae4all_go_interrupt)
{
/*if (verb)*/ printf("uae4all_go_interrupt: %02x\n", uae4all_go_interrupt);
M68KCONTEXT.interrupts[0]=uae4all_go_interrupt;
M68KCONTEXT.execinfo&=0xFF67;
uae4all_go_interrupt=0;
m68k_irq_update(0);
}
#endif
uae4all_prof_start(1);
cycles=(M68KCONTEXT.cycles_counter-cycles_actual) * cycles_factor;
#ifdef DEBUG_INTERRUPTS
dbgf("cycles=%i (%i) -> PC=%.6x\n",cycles>>8,nextevent - currcycle, _68k_getpc());
#endif
#ifdef NO_SHORT_EVENTS
#ifdef PROTECT_INFINITE
unsigned cuentalo=0;
#endif
do {
#endif
do_cycles(cycles);
if (mispcflags)
if (do_specialties (cycles))
return;
#ifndef DEBUG_M68K
#ifdef NO_SHORT_EVENTS
cycles=2048;
#ifdef PROTECT_INFINITE
cuentalo++;
if (cuentalo>1024) {
g_emulator.quit_program=RunStateReset;
return;
}
#endif
} while((nextevent - currcycle)<=2048);
#endif
cycles_actual=M68KCONTEXT.cycles_counter;
#endif
uae4all_prof_end(1);
}
}
static int do_specialties (int cycles)
{
if (mispcflags & SPCFLAG_COPPER)
{
#ifdef DEBUG_M68K
dbg("do_specialties -> do_copper");
#endif
do_copper ();
}
/*n_spcinsns++;*/
while ((mispcflags & SPCFLAG_BLTNASTY) && cycles > 0) {
int c = blitnasty();
if (!c) {
cycles -= 2 * CYCLE_UNIT;
if (cycles < CYCLE_UNIT)
cycles = 0;
c = 1;
}
#ifdef DEBUG_M68K
dbgf("do_specialties -> do_cycles BLTNASTY %i\n",c);
#endif
do_cycles(c * CYCLE_UNIT);
if (mispcflags & SPCFLAG_COPPER)
{
#ifdef DEBUG_M68K
dbg("do_specialties -> do_copper BLTNASTY");
#endif
do_copper ();
}
}
#ifdef DEBUG_M68K
while (M68KCONTEXT.execinfo & 0x0080) {
if (mispcflags & SPCFLAG_BRK)
break;
else if (M68KCONTEXT.execinfo & 0x0080)
{
int intr = intlev ();
if (intr != -1 && intr > _68k_intmask)
{
M68KCONTEXT.execinfo &= 0xFF7F;
break;
}
}
dbg("CPU STOPPED !");
do_cycles(4 * CYCLE_UNIT);
if (mispcflags & SPCFLAG_COPPER)
{
dbg("do_specialties -> do_copper STOPPED");
do_copper ();
}
}
unset_special (SPCFLAG_STOP);
#endif
#if 0 // !defined(FAME_INTERRUPTS_SECURE_PATCH) && defined(FAME_INTERRUPTS_PATCH)
if (uae4all_go_interrupt)
{
/*if (verb)*/ printf("uae4all_go_interrupt (s): %02x\n", uae4all_go_interrupt);
M68KCONTEXT.interrupts[0]=uae4all_go_interrupt;
M68KCONTEXT.execinfo&=0xFF67;
uae4all_go_interrupt=0;
m68k_irq_update(0);
}
#endif
#ifdef SPECIAL_DEBUG_INTERRUPTS
if ((mispcflags & SPCFLAG_DOINT)&&(!(mispcflags & SPCFLAG_INT))) {
int intr = intlev ();
#ifdef DEBUG_INTERRUPTS_EXTRA
dbgf("DOINT : intr = %i, intmask=%i\n", intr, _68k_intmask);
#endif
unset_special (SPCFLAG_DOINT);
if (intr != -1 && intr > _68k_intmask) {
M68KCONTEXT.execinfo&=0xFF6F;
m68k_raise_irq(intr,M68K_AUTOVECTORED_IRQ);
// m68k_emulate(0);
}
}
if (mispcflags & SPCFLAG_INT) {
#ifdef DEBUG_INTERRUPTS_EXTRA
dbg("ESTAMOS EN INT -> PASAMOS A DOINT");
#endif
unset_special (SPCFLAG_INT);
set_special (SPCFLAG_DOINT);
}
#endif
if (mispcflags & SPCFLAG_BRK) {
unset_special (SPCFLAG_BRK);
return 1;
}
return 0;
}
static void m68k_run (void)
{
uae4all_reset ();
unsigned cycles, cycles_actual=M68KCONTEXT.cycles_counter;
for (;;) {
while (pause_program > 0)
{
usleep(200000);
}
#ifdef DEBUG_M68K
dbg_cycle(m68k_fetch(m68k_get_pc(),0));
m68k_emulate(1);
#else
uae4all_prof_start(0);
cycles = nextevent - currcycle;
switch (timeslice_mode) {
case 3: cycles>>=6; break;
case 2: cycles>>=7; break;
case 1: cycles=(cycles>>8)+(cycles>>9); break;
default: cycles>>=8; break;
}
#ifdef DEBUG_TIMESLICE
unsigned ts=cycles;
#endif
#if defined(FAME_INTERRUPTS_SECURE_PATCH) && defined(FAME_INTERRUPTS_PATCH)
if (uae4all_go_interrupt)
m68k_emulate(FAME_INTERRUPTS_PATCH);
else
#endif
m68k_emulate(cycles);
uae4all_prof_end(0);
#endif
#if 0 // def FAME_INTERRUPTS_PATCH
if (uae4all_go_interrupt)
{
/*if (verb)*/ printf("uae4all_go_interrupt: %02x\n", uae4all_go_interrupt);
M68KCONTEXT.interrupts[0]=uae4all_go_interrupt;
M68KCONTEXT.execinfo&=0xFF67;
uae4all_go_interrupt=0;
m68k_irq_update(0);
}
#endif
#ifdef DEBUG_M68K
if (M68KCONTEXT.execinfo & 0x0080)
mispcflags|=SPCFLAG_STOP;
#endif
uae4all_prof_start(1);
//cycles=((unsigned)(((double)(M68KCONTEXT.cycles_counter-cycles_actual))*cycles_factor))<<8;
cycles=(M68KCONTEXT.cycles_counter-cycles_actual) * cycles_factor;
#ifdef DEBUG_INTERRUPTS
dbgf("cycles=%i (%i) -> PC=%.6x\n",cycles>>8,nextevent - currcycle, _68k_getpc());
#endif
#ifdef NO_SHORT_EVENTS
#ifdef PROTECT_INFINITE
unsigned cuentalo=0;
#endif
do{
#endif
do_cycles(cycles);
if (mispcflags)
if (do_specialties (cycles))
return;
#ifndef DEBUG_M68K
#ifdef NO_SHORT_EVENTS
cycles=2048;
#ifdef PROTECT_INFINITE
cuentalo++;
if (cuentalo>1024)
{
quit_program=2;
return;
}
#endif
}while((nextevent - currcycle)<=2048);
#endif
cycles_actual=M68KCONTEXT.cycles_counter;
#endif
uae4all_prof_end(1);
}
}