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

cd: some fixes

Browse source
This commit is contained in:
notaz 2013-08-29 00:42:38 +03:00
parent ba6e8bfd4b
commit 59991f1117
2 changed files with 9 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

13
pico/cd/memory.c
View file

@ -212,7 +212,6 @@ void m68k_reg_write8(u32 a, u32 d)
((u16 *)Pico_mcd->bios)[0x70/2], ((u16 *)Pico_mcd->bios)[0x72/2]);
return;
case 0x0f:
d = (d << 1) | ((d >> 7) & 1); // rol8 1 (special case)
a = 0x0e;
case 0x0e:
goto write_comm;
@ -394,8 +393,6 @@ void s68k_reg_write8(u32 a, u32 d)
Pico_mcd->m.stopwatch_base_c = SekCyclesDoneS68k();
return;
case 0x0e:
d &= 0xff;
d = (d>>1) | (d<<7); // ror8 1, Gens note: Dragons lair
a = 0x0f;
case 0x0f:
goto write_comm;
@ -646,17 +643,17 @@ static void s68k_unmapped_write16(u32 a, u32 d)
elprintf(EL_UIO, "s68k unmapped w16 [%06x] %04x @%06x", a, d & 0xffff, SekPc);
}
// PRG RAM protected range (000000 - 00ff00)?
// PRG RAM protected range (000000 - 01fdff)?
// XXX verify: ff00 or 1fe00 max?
static void PicoWriteS68k8_prgwp(u32 a, u32 d)
{
if (a >= (Pico_mcd->s68k_regs[2] << 8))
if (a >= (Pico_mcd->s68k_regs[2] << 9))
Pico_mcd->prg_ram[a ^ 1] = d;
}
static void PicoWriteS68k16_prgwp(u32 a, u32 d)
{
if (a >= (Pico_mcd->s68k_regs[2] << 8))
if (a >= (Pico_mcd->s68k_regs[2] << 9))
*(u16 *)(Pico_mcd->prg_ram + a) = d;
}
@ -1067,8 +1064,8 @@ PICO_INTERNAL void PicoMemSetupCD(void)
cpu68k_map_set(s68k_read16_map, 0x000000, 0x07ffff, Pico_mcd->prg_ram, 0);
cpu68k_map_set(s68k_write8_map, 0x000000, 0x07ffff, Pico_mcd->prg_ram, 0);
cpu68k_map_set(s68k_write16_map, 0x000000, 0x07ffff, Pico_mcd->prg_ram, 0);
cpu68k_map_set(s68k_write8_map, 0x000000, 0x00ffff, PicoWriteS68k8_prgwp, 1);
cpu68k_map_set(s68k_write16_map, 0x000000, 0x00ffff, PicoWriteS68k16_prgwp, 1);
cpu68k_map_set(s68k_write8_map, 0x000000, 0x01ffff, PicoWriteS68k8_prgwp, 1);
cpu68k_map_set(s68k_write16_map, 0x000000, 0x01ffff, PicoWriteS68k16_prgwp, 1);
// BRAM
cpu68k_map_set(s68k_read8_map, 0xfe0000, 0xfeffff, PicoReadS68k8_bram, 1);