p32x_pwm_ctl_changed();
p32x_timers_recalc();
+ Pico32x.sh2_regs[0] = P32XS2_ADEN;
+ if (Pico.m.ncart_in)
+ Pico32x.sh2_regs[0] |= P32XS_nCART;
+
if (!Pico.m.pal)
Pico32x.vdp_regs[0] |= P32XV_nPAL;
// if we don't have BIOS set, perform it's work here.
// MSH2
if (p32x_bios_m == NULL) {
- unsigned int idl_src, idl_dst, idl_size; // initial data load
- unsigned int vbr;
+ sh2_set_gbr(0, 0x20004000);
- // initial data
- idl_src = HWSWAP(*(unsigned int *)(Pico.rom + 0x3d4)) & ~0xf0000000;
- idl_dst = HWSWAP(*(unsigned int *)(Pico.rom + 0x3d8)) & ~0xf0000000;
- idl_size= HWSWAP(*(unsigned int *)(Pico.rom + 0x3dc));
- if (idl_size > Pico.romsize || idl_src + idl_size > Pico.romsize ||
- idl_size > 0x40000 || idl_dst + idl_size > 0x40000 || (idl_src & 3) || (idl_dst & 3)) {
- elprintf(EL_STATUS|EL_ANOMALY, "32x: invalid initial data ptrs: %06x -> %06x, %06x",
- idl_src, idl_dst, idl_size);
- }
- else
- memcpy(Pico32xMem->sdram + idl_dst, Pico.rom + idl_src, idl_size);
+ if (!(PicoAHW & PAHW_MCD)) {
+ unsigned int idl_src, idl_dst, idl_size; // initial data load
+ unsigned int vbr;
+
+ // initial data
+ idl_src = HWSWAP(*(unsigned int *)(Pico.rom + 0x3d4)) & ~0xf0000000;
+ idl_dst = HWSWAP(*(unsigned int *)(Pico.rom + 0x3d8)) & ~0xf0000000;
+ idl_size= HWSWAP(*(unsigned int *)(Pico.rom + 0x3dc));
+ if (idl_size > Pico.romsize || idl_src + idl_size > Pico.romsize ||
+ idl_size > 0x40000 || idl_dst + idl_size > 0x40000 || (idl_src & 3) || (idl_dst & 3)) {
+ elprintf(EL_STATUS|EL_ANOMALY, "32x: invalid initial data ptrs: %06x -> %06x, %06x",
+ idl_src, idl_dst, idl_size);
+ }
+ else
+ memcpy(Pico32xMem->sdram + idl_dst, Pico.rom + idl_src, idl_size);
- // GBR/VBR
- vbr = HWSWAP(*(unsigned int *)(Pico.rom + 0x3e8));
- sh2_set_gbr(0, 0x20004000);
- sh2_set_vbr(0, vbr);
+ // VBR
+ vbr = HWSWAP(*(unsigned int *)(Pico.rom + 0x3e8));
+ sh2_set_vbr(0, vbr);
- // checksum and M_OK
- Pico32x.regs[0x28 / 2] = *(unsigned short *)(Pico.rom + 0x18e);
+ // checksum and M_OK
+ Pico32x.regs[0x28 / 2] = *(unsigned short *)(Pico.rom + 0x18e);
+ }
// program will set M_OK
}
// program will set S_OK
}
- msh2.m68krcycles_done = ssh2.m68krcycles_done = SekCyclesDoneT();
+ msh2.m68krcycles_done = ssh2.m68krcycles_done = SekCyclesDone();
}
void Pico32xInit(void)
Pico32x.regs[0] = P32XS_REN|P32XS_nRES; // verified
Pico32x.vdp_regs[0x0a/2] = P32XV_VBLK|P32XV_PEN;
- Pico32x.sh2_regs[0] = P32XS2_ADEN;
}
void PicoUnload32x(void)
void PicoReset32x(void)
{
if (PicoAHW & PAHW_32X) {
- msh2.m68krcycles_done = ssh2.m68krcycles_done = SekCyclesDoneT();
- p32x_trigger_irq(NULL, SekCyclesDoneT2(), P32XI_VRES);
+ p32x_trigger_irq(NULL, SekCyclesDone(), P32XI_VRES);
p32x_sh2_poll_event(&msh2, SH2_IDLE_STATES, 0);
p32x_sh2_poll_event(&ssh2, SH2_IDLE_STATES, 0);
p32x_pwm_ctl_changed();
Pico32xSwapDRAM(Pico32x.pending_fb ^ 1);
}
- p32x_trigger_irq(NULL, SekCyclesDoneT2(), P32XI_VINT);
+ p32x_trigger_irq(NULL, SekCyclesDone(), P32XI_VINT);
p32x_sh2_poll_event(&msh2, SH2_STATE_VPOLL, 0);
p32x_sh2_poll_event(&ssh2, SH2_STATE_VPOLL, 0);
}
p32x_event_schedule(m68k_cycles, P32X_EVENT_HINT, after);
}
-// compare cycles, handling overflows
-// check if a > b
-#define CYCLES_GT(a, b) \
- ((int)((a) - (b)) > 0)
-// check if a >= b
-#define CYCLES_GE(a, b) \
- ((int)((a) - (b)) >= 0)
-
/* events */
static void fillend_event(unsigned int now)
{
typedef void (event_cb)(unsigned int now);
-unsigned int event_times[P32X_EVENT_COUNT];
+/* times are in m68k (7.6MHz) cycles */
+unsigned int p32x_event_times[P32X_EVENT_COUNT];
static unsigned int event_time_next;
-static event_cb *event_cbs[] = {
+static event_cb *p32x_event_cbs[P32X_EVENT_COUNT] = {
[P32X_EVENT_PWM] = p32x_pwm_irq_event,
[P32X_EVENT_FILLEND] = fillend_event,
[P32X_EVENT_HINT] = hint_event,
when = (now + after) | 1;
- elprintf(EL_32X, "new event #%u %u->%u", event, now, when);
- event_times[event] = when;
+ elprintf(EL_32X, "32x: new event #%u %u->%u", event, now, when);
+ p32x_event_times[event] = when;
if (event_time_next == 0 || CYCLES_GT(event_time_next, when))
event_time_next = when;
sh2_end_run(sh2, left_to_next);
}
-static void run_events(unsigned int until)
+static void p32x_run_events(unsigned int until)
{
int oldest, oldest_diff, time;
int i, diff;
oldest = -1, oldest_diff = 0x7fffffff;
for (i = 0; i < P32X_EVENT_COUNT; i++) {
- if (event_times[i]) {
- diff = event_times[i] - until;
+ if (p32x_event_times[i]) {
+ diff = p32x_event_times[i] - until;
if (diff < oldest_diff) {
oldest_diff = diff;
oldest = i;
}
if (oldest_diff <= 0) {
- time = event_times[oldest];
- event_times[oldest] = 0;
- elprintf(EL_32X, "run event #%d %u", oldest, time);
- event_cbs[oldest](time);
+ time = p32x_event_times[oldest];
+ p32x_event_times[oldest] = 0;
+ elprintf(EL_32X, "32x: run event #%d %u", oldest, time);
+ p32x_event_cbs[oldest](time);
}
else if (oldest_diff < 0x7fffffff) {
- event_time_next = event_times[oldest];
+ event_time_next = p32x_event_times[oldest];
break;
}
else {
}
if (oldest != -1)
- elprintf(EL_32X, "next event #%d at %u", oldest, event_time_next);
+ elprintf(EL_32X, "32x: next event #%d at %u",
+ oldest, event_time_next);
}
static inline void run_sh2(SH2 *sh2, int m68k_cycles)
elprintf_sh2(sh2, EL_32X, "+run %u %d @%08x",
sh2->m68krcycles_done, cycles, sh2->pc);
- done = sh2_execute(sh2, cycles);
+ done = sh2_execute(sh2, cycles, PicoOpt & POPT_EN_DRC);
sh2->m68krcycles_done += C_SH2_TO_M68K(*sh2, done);
sh2->state &= ~SH2_STATE_RUN;
while (CYCLES_GT(m68k_target, now))
{
if (event_time_next && CYCLES_GE(now, event_time_next))
- run_events(now);
+ p32x_run_events(now);
target = m68k_target;
if (event_time_next && CYCLES_GT(target, event_time_next))
}
}
-#define CPUS_RUN(m68k_cycles,s68k_cycles) do { \
- SekRunM68k(m68k_cycles); \
- if (Pico32x.emu_flags & P32XF_Z80_32X_IO) \
- PicoSyncZ80(SekCycleCnt); \
+#define CPUS_RUN(m68k_cycles) do { \
+ if (PicoAHW & PAHW_MCD) \
+ pcd_run_cpus(m68k_cycles); \
+ else \
+ SekRunM68k(m68k_cycles); \
+ \
+ if ((Pico32x.emu_flags & P32XF_Z80_32X_IO) && Pico.m.z80Run \
+ && !Pico.m.z80_reset && (PicoOpt & POPT_EN_Z80)) \
+ PicoSyncZ80(SekCyclesDone()); \
if (Pico32x.emu_flags & (P32XF_68KCPOLL|P32XF_68KVPOLL)) \
- p32x_sync_sh2s(SekCyclesDoneT2()); \
+ p32x_sync_sh2s(SekCyclesDone()); \
} while (0)
#define PICO_32X
+#define PICO_CD
#include "../pico_cmn.c"
void PicoFrame32x(void)
Pico32x.vdp_regs[0x0a/2] &= ~P32XV_PEN; // no palette access
if (!(Pico32x.sh2_regs[0] & 0x80))
- p32x_schedule_hint(NULL, SekCyclesDoneT2());
+ p32x_schedule_hint(NULL, SekCyclesDone());
p32x_sh2_poll_event(&msh2, SH2_STATE_VPOLL, 0);
p32x_sh2_poll_event(&ssh2, SH2_STATE_VPOLL, 0);
+ if (PicoAHW & PAHW_MCD)
+ pcd_prepare_frame();
+
PicoFrameStart();
PicoFrameHints();
sh2_drc_frame();
return;
}
- SekCycleCnt = 0;
- sh2s[0].m68krcycles_done = sh2s[1].m68krcycles_done = SekCycleCntT;
- p32x_update_irls(NULL, SekCycleCntT);
+ sh2s[0].m68krcycles_done = sh2s[1].m68krcycles_done = SekCyclesDone();
+ p32x_update_irls(NULL, SekCyclesDone());
p32x_pwm_state_loaded();
- run_events(SekCycleCntT);
+ p32x_run_events(SekCyclesDone());
}
// vim:shiftwidth=2:ts=2:expandtab