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32x, some reset related fixes

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This commit is contained in:
kub 2024-05-05 11:59:41 +02:00
parent 0290987ccb
commit eec6905e0b
2 changed files with 29 additions and 24 deletions
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39
pico/32x/32x.c
View file

@ -35,6 +35,9 @@ void p32x_update_irls(SH2 *active_sh2, unsigned int m68k_cycles)
int irqs, mlvl = 0, slvl = 0;
int mrun, srun;
if ((Pico32x.regs[0] & (P32XS_nRES|P32XS_ADEN)) != (P32XS_nRES|P32XS_ADEN))
return;
if (active_sh2 != NULL)
m68k_cycles = sh2_cycles_done_m68k(active_sh2);
@ -100,13 +103,21 @@ void Pico32xStartup(void)
{
elprintf(EL_STATUS|EL_32X, "32X startup");
// TODO: OOM handling
PicoIn.AHW |= PAHW_32X;
sh2_init(&msh2, 0, &ssh2);
msh2.irq_callback = sh2_irq_cb;
sh2_init(&ssh2, 1, &msh2);
ssh2.irq_callback = sh2_irq_cb;
// TODO: OOM handling
if (Pico32xMem == NULL) {
Pico32xMem = plat_mmap(0x06000000, sizeof(*Pico32xMem), 0, 0);
if (Pico32xMem == NULL) {
elprintf(EL_STATUS, "OOM");
return;
}
memset(Pico32xMem, 0, sizeof(struct Pico32xMem));
sh2_init(&msh2, 0, &ssh2);
msh2.irq_callback = sh2_irq_cb;
sh2_init(&ssh2, 1, &msh2);
ssh2.irq_callback = sh2_irq_cb;
}
PicoMemSetup32x();
p32x_pwm_ctl_changed();
p32x_timers_recalc();
@ -117,6 +128,8 @@ void Pico32xStartup(void)
if (!Pico.m.pal)
Pico32x.vdp_regs[0] |= P32XV_nPAL;
else
Pico32x.vdp_regs[0] &= ~P32XV_nPAL;
rendstatus_old = -1;
@ -126,11 +139,8 @@ void Pico32xStartup(void)
void Pico32xShutdown(void)
{
sh2_finish(&msh2);
sh2_finish(&ssh2);
Pico32x.vdp_regs[0] |= P32XS_nRES;
Pico32x.vdp_regs[6] |= P32XS_RV;
Pico32x.sh2_regs[0] &= ~P32XS2_ADEN;
Pico32x.regs[6] |= P32XS_RV;
rendstatus_old = -1;
@ -212,6 +222,9 @@ void PicoUnload32x(void)
if (PicoIn.AHW & PAHW_32X)
Pico32xShutdown();
sh2_finish(&msh2);
sh2_finish(&ssh2);
if (Pico32xMem != NULL)
plat_munmap(Pico32xMem, sizeof(*Pico32xMem));
Pico32xMem = NULL;
@ -226,6 +239,7 @@ void PicoReset32x(void)
p32x_pwm_ctl_changed();
p32x_timers_recalc();
Pico32x.vdp_regs[0] &= ~P32XV_Mx; // 32X graphics disabled
Pico32x.pending_fb = Pico32x.vdp_regs[0x0a/2] & P32XV_FS;
}
}
@ -264,9 +278,8 @@ static void p32x_start_blank(void)
// FB swap waits until vblank
if ((Pico32x.vdp_regs[0x0a/2] ^ Pico32x.pending_fb) & P32XV_FS) {
Pico32x.vdp_regs[0x0a/2] &= ~P32XV_FS;
Pico32x.vdp_regs[0x0a/2] |= Pico32x.pending_fb;
Pico32xSwapDRAM(Pico32x.pending_fb ^ 1);
Pico32x.vdp_regs[0x0a/2] ^= P32XV_FS;
Pico32xSwapDRAM(Pico32x.pending_fb ^ P32XV_FS);
}
p32x_trigger_irq(NULL, Pico.t.m68c_aim, P32XI_VINT);

14
pico/32x/memory.c
View file

@ -695,12 +695,12 @@ static void p32x_vdp_write8(u32 a, u32 d)
r[4 / 2] = d & 0xff;
break;
case 0x0b:
d &= 1;
d &= P32XV_FS;
Pico32x.pending_fb = d;
// if we are blanking and FS bit is changing
if (((r[0x0a/2] & P32XV_VBLK) || (r[0] & P32XV_Mx) == 0) && ((r[0x0a/2] ^ d) & P32XV_FS)) {
r[0x0a/2] ^= P32XV_FS;
Pico32xSwapDRAM(d ^ 1);
Pico32xSwapDRAM(d ^ P32XV_FS);
elprintf(EL_32X, "VDP FS: %d", r[0x0a/2] & P32XV_FS);
}
break;
@ -2303,14 +2303,6 @@ void PicoMemSetup32x(void)
unsigned int rs;
int i;
if (Pico32xMem == NULL)
Pico32xMem = plat_mmap(0x06000000, sizeof(*Pico32xMem), 0, 0);
if (Pico32xMem == NULL) {
elprintf(EL_STATUS, "OOM");
return;
}
memset(Pico32xMem, 0, sizeof(struct Pico32xMem));
get_bios();
// cartridge area becomes unmapped
@ -2446,7 +2438,7 @@ void PicoMemSetup32x(void)
ssh2_read32_map[0xc0/2].addr = MAP_MEMORY(ssh2.data_array);
// map DRAM area, both 68k and SH2
Pico32xSwapDRAM(1);
Pico32xSwapDRAM((Pico32x.vdp_regs[0x0a / 2] & P32XV_FS) ^ P32XV_FS);
msh2.read8_map = msh2_read8_map; ssh2.read8_map = ssh2_read8_map;
msh2.read16_map = msh2_read16_map; ssh2.read16_map = ssh2_read16_map;