RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

32x, reset handling and synchronization changes

Browse source
This commit is contained in:
kub 2022-10-28 19:55:40 +00:00
parent 7e0c38c9c7
commit eb990fd62a
3 changed files with 6 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

22
pico/32x/memory.c
View file

@ -59,7 +59,7 @@ static void (*m68k_write16_io)(u32 a, u32 d);
#define REG8IN16(ptr, offs) ((u8 *)ptr)[MEM_BE2(offs)]
// poll detection
#define POLL_THRESHOLD 9 // cosmic carnage
#define POLL_THRESHOLD 9 // Primal Rage
static struct {
u32 addr1, addr2, cycles;
@ -203,7 +203,7 @@ static NOINLINE u32 sh2_poll_read(u32 a, u32 d, unsigned int cycles, SH2* sh2)
idx = (idx+1) % PFIFO_SZ;
if (cpu != p->cpu) {
if (CYCLES_GT(cycles, p->cycles+80)) {
if (CYCLES_GT(cycles, p->cycles+60)) { // ~180 sh2 cycles, Spiderman
// drop older fifo stores that may cause synchronisation problems.
p->a = -1;
} else if (p->a == a) {
@ -1694,23 +1694,6 @@ static void REGPARM(3) sh2_write8_da(u32 a, u32 d, SH2 *sh2)
}
#endif
static NOINLINE void REGPARM(3) sh2_write8_sdram_sync(u32 a, u32 d, SH2 *sh2)
{
DRC_SAVE_SR(sh2);
sh2_end_run(sh2, 32);
DRC_RESTORE_SR(sh2);
sh2_write8_sdram(a, d, sh2);
}
static void REGPARM(3) sh2_write8_sdram_wt(u32 a, u32 d, SH2 *sh2)
{
// xmen sync hack..
if ((a << 8) >> 17) // ((a & 0x00ffffff) < 0x200)
sh2_write8_sdram(a, d, sh2);
else
sh2_write8_sdram_sync(a, d, sh2);
}
// write16
static void REGPARM(3) sh2_write16_unmapped(u32 a, u32 d, SH2 *sh2)
{
@ -2403,7 +2386,6 @@ void PicoMemSetup32x(void)
msh2_read16_map[0x06/2].addr = msh2_read16_map[0x26/2].addr =
msh2_read32_map[0x06/2].addr = msh2_read32_map[0x26/2].addr = MAP_MEMORY(Pico32xMem->sdram);
msh2_write8_map[0x06/2] = msh2_write8_map[0x26/2] = sh2_write8_sdram;
msh2_write8_map[0x26/2] = sh2_write8_sdram_wt;
msh2_write16_map[0x06/2] = msh2_write16_map[0x26/2] = sh2_write16_sdram;
msh2_write32_map[0x06/2] = msh2_write32_map[0x26/2] = sh2_write32_sdram;