mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 07:17:45 -04:00
32x: drc: new smc handling, write handlers adjusted.
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@820 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz
parent
2b2b46b05d
commit
f4bb5d6b2c
9 changed files with 389 additions and 150 deletions
|
|
@ -22,6 +22,9 @@
|
|||
*/
|
||||
#include "../pico_int.h"
|
||||
#include "../memory.h"
|
||||
#ifdef DRC_SH2
|
||||
#include "../../cpu/sh2/compiler.h"
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
#undef ash2_end_run
|
||||
|
|
@ -1054,9 +1057,26 @@ static void sh2_write8_dram1(u32 a, u32 d, int id)
|
|||
sh2_write8_dramN(1);
|
||||
}
|
||||
|
||||
static void sh2_write8_sdram(u32 a, u32 d, int id)
|
||||
{
|
||||
u32 a1 = a & 0x3ffff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_ram[a1 >> SH2_DRCBLK_RAM_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_ram(a, t, id);
|
||||
#endif
|
||||
Pico32xMem->sdram[a1 ^ 1] = d;
|
||||
}
|
||||
|
||||
static void sh2_write8_da(u32 a, u32 d, int id)
|
||||
{
|
||||
Pico32xMem->data_array[id][(a & 0xfff) ^ 1] = d;
|
||||
u32 a1 = a & 0xfff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_da[id][a1 >> SH2_DRCBLK_DA_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_da(a, t, id);
|
||||
#endif
|
||||
Pico32xMem->data_array[id][a1 ^ 1] = d;
|
||||
}
|
||||
|
||||
// write16
|
||||
|
|
@ -1113,9 +1133,26 @@ static void sh2_write16_dram1(u32 a, u32 d, int id)
|
|||
sh2_write16_dramN(1);
|
||||
}
|
||||
|
||||
static void sh2_write16_sdram(u32 a, u32 d, int id)
|
||||
{
|
||||
u32 a1 = a & 0x3ffff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_ram[a1 >> SH2_DRCBLK_RAM_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_ram(a, t, id);
|
||||
#endif
|
||||
((u16 *)Pico32xMem->sdram)[a1 / 2] = d;
|
||||
}
|
||||
|
||||
static void sh2_write16_da(u32 a, u32 d, int id)
|
||||
{
|
||||
((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2] = d;
|
||||
u32 a1 = a & 0xfff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_da[id][a1 >> SH2_DRCBLK_DA_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_da(a, t, id);
|
||||
#endif
|
||||
((u16 *)Pico32xMem->data_array[id])[a1 / 2] = d;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1181,53 +1218,36 @@ u32 p32x_sh2_read32(u32 a, SH2 *sh2)
|
|||
|
||||
void p32x_sh2_write8(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const sh2_memmap *sh2_map = sh2->write8_map;
|
||||
uptr p;
|
||||
const void **sh2_wmap = sh2->write8_tab;
|
||||
sh2_write_handler *wh;
|
||||
|
||||
sh2_map += SH2MAP_ADDR2OFFS(a);
|
||||
p = sh2_map->addr;
|
||||
if (p & (1 << 31))
|
||||
((sh2_write_handler *)(p << 1))(a, d, sh2->is_slave);
|
||||
else
|
||||
*(u8 *)((p << 1) + ((a & sh2_map->mask) ^ 1)) = d;
|
||||
wh = sh2_wmap[SH2MAP_ADDR2OFFS(a)];
|
||||
wh(a, d, sh2->is_slave);
|
||||
}
|
||||
|
||||
void p32x_sh2_write16(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const sh2_memmap *sh2_map = sh2->write16_map;
|
||||
uptr p;
|
||||
const void **sh2_wmap = sh2->write16_tab;
|
||||
sh2_write_handler *wh;
|
||||
|
||||
sh2_map += SH2MAP_ADDR2OFFS(a);
|
||||
p = sh2_map->addr;
|
||||
if (p & (1 << 31))
|
||||
((sh2_write_handler *)(p << 1))(a, d, sh2->is_slave);
|
||||
else
|
||||
*(u16 *)((p << 1) + ((a & sh2_map->mask) & ~1)) = d;
|
||||
wh = sh2_wmap[SH2MAP_ADDR2OFFS(a)];
|
||||
wh(a, d, sh2->is_slave);
|
||||
}
|
||||
|
||||
void p32x_sh2_write32(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const sh2_memmap *sh2_map = sh2->write16_map;
|
||||
const void **sh2_wmap = sh2->write16_tab;
|
||||
sh2_write_handler *handler;
|
||||
u32 offs;
|
||||
uptr p;
|
||||
|
||||
offs = SH2MAP_ADDR2OFFS(a);
|
||||
sh2_map += offs;
|
||||
p = sh2_map->addr;
|
||||
if (!(p & (1 << 31))) {
|
||||
u16 *pd = (u16 *)((p << 1) + ((a & sh2_map->mask) & ~1));
|
||||
pd[0] = d >> 16;
|
||||
pd[1] = d;
|
||||
return;
|
||||
}
|
||||
|
||||
if (offs == 0x1f) {
|
||||
sh2_peripheral_write32(a, d, sh2->is_slave);
|
||||
return;
|
||||
}
|
||||
|
||||
handler = (sh2_write_handler *)(p << 1);
|
||||
handler = sh2_wmap[offs];
|
||||
handler(a, d >> 16, sh2->is_slave);
|
||||
handler(a + 2, d, sh2->is_slave);
|
||||
}
|
||||
|
|
@ -1355,7 +1375,8 @@ static void get_bios(void)
|
|||
#define MAP_HANDLER(h) (((uptr)(h) >> 1) | (1 << 31))
|
||||
|
||||
static sh2_memmap sh2_read8_map[0x20], sh2_read16_map[0x20];
|
||||
static sh2_memmap sh2_write8_map[0x20], sh2_write16_map[0x20];
|
||||
// for writes we are using handlers only
|
||||
static void *sh2_write8_map[0x20], *sh2_write16_map[0x20];
|
||||
|
||||
void Pico32xSwapDRAM(int b)
|
||||
{
|
||||
|
|
@ -1368,8 +1389,8 @@ void Pico32xSwapDRAM(int b)
|
|||
sh2_read8_map[2].addr = sh2_read8_map[6].addr =
|
||||
sh2_read16_map[2].addr = sh2_read16_map[6].addr = MAP_MEMORY(Pico32xMem->dram[b]);
|
||||
|
||||
sh2_write8_map[2].addr = sh2_write8_map[6].addr = MAP_HANDLER(b ? sh2_write8_dram1 : sh2_write8_dram0);
|
||||
sh2_write16_map[2].addr = sh2_write16_map[6].addr = MAP_HANDLER(b ? sh2_write16_dram1 : sh2_write16_dram0);
|
||||
sh2_write8_map[2] = sh2_write8_map[6] = b ? sh2_write8_dram1 : sh2_write8_dram0;
|
||||
sh2_write16_map[2] = sh2_write16_map[6] = b ? sh2_write16_dram1 : sh2_write16_dram0;
|
||||
}
|
||||
|
||||
void PicoMemSetup32x(void)
|
||||
|
|
@ -1426,15 +1447,15 @@ void PicoMemSetup32x(void)
|
|||
for (i = 0; i < 0x20; i++) {
|
||||
sh2_read8_map[i].addr = MAP_HANDLER(sh2_read8_unmapped);
|
||||
sh2_read16_map[i].addr = MAP_HANDLER(sh2_read16_unmapped);
|
||||
sh2_write8_map[i].addr = MAP_HANDLER(sh2_write8_unmapped);
|
||||
sh2_write16_map[i].addr = MAP_HANDLER(sh2_write16_unmapped);
|
||||
sh2_write8_map[i] = sh2_write8_unmapped;
|
||||
sh2_write16_map[i] = sh2_write16_unmapped;
|
||||
}
|
||||
|
||||
// CS0
|
||||
sh2_read8_map[0].addr = sh2_read8_map[4].addr = MAP_HANDLER(sh2_read8_cs0);
|
||||
sh2_read16_map[0].addr = sh2_read16_map[4].addr = MAP_HANDLER(sh2_read16_cs0);
|
||||
sh2_write8_map[0].addr = sh2_write8_map[4].addr = MAP_HANDLER(sh2_write8_cs0);
|
||||
sh2_write16_map[0].addr = sh2_write16_map[4].addr = MAP_HANDLER(sh2_write16_cs0);
|
||||
sh2_write8_map[0] = sh2_write8_map[4] = sh2_write8_cs0;
|
||||
sh2_write16_map[0] = sh2_write16_map[4] = sh2_write16_cs0;
|
||||
// CS1 - ROM
|
||||
sh2_read8_map[1].addr = sh2_read8_map[5].addr =
|
||||
sh2_read16_map[1].addr = sh2_read16_map[5].addr = MAP_MEMORY(Pico.rom);
|
||||
|
|
@ -1445,31 +1466,29 @@ void PicoMemSetup32x(void)
|
|||
sh2_read16_map[2].mask = sh2_read16_map[6].mask = 0x01ffff;
|
||||
// CS3 - SDRAM
|
||||
sh2_read8_map[3].addr = sh2_read8_map[7].addr =
|
||||
sh2_read16_map[3].addr = sh2_read16_map[7].addr =
|
||||
sh2_write8_map[3].addr = sh2_write8_map[7].addr =
|
||||
sh2_write16_map[3].addr = sh2_write16_map[7].addr = MAP_MEMORY(Pico32xMem->sdram);
|
||||
sh2_read16_map[3].addr = sh2_read16_map[7].addr = MAP_MEMORY(Pico32xMem->sdram);
|
||||
sh2_write8_map[3] = sh2_write8_map[7] = sh2_write8_sdram;
|
||||
sh2_write16_map[3] = sh2_write16_map[7] = sh2_write16_sdram;
|
||||
sh2_read8_map[3].mask = sh2_read8_map[7].mask =
|
||||
sh2_read16_map[3].mask = sh2_read16_map[7].mask =
|
||||
sh2_write8_map[3].mask = sh2_write8_map[7].mask =
|
||||
sh2_write16_map[3].mask = sh2_write16_map[7].mask = 0x03ffff;
|
||||
sh2_read16_map[3].mask = sh2_read16_map[7].mask = 0x03ffff;
|
||||
// SH2 data array
|
||||
sh2_read8_map[0x18].addr = MAP_HANDLER(sh2_read8_da);
|
||||
sh2_read16_map[0x18].addr = MAP_HANDLER(sh2_read16_da);
|
||||
sh2_write8_map[0x18].addr = MAP_HANDLER(sh2_write8_da);
|
||||
sh2_write16_map[0x18].addr = MAP_HANDLER(sh2_write16_da);
|
||||
sh2_write8_map[0x18] = sh2_write8_da;
|
||||
sh2_write16_map[0x18] = sh2_write16_da;
|
||||
// SH2 IO
|
||||
sh2_read8_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_read8);
|
||||
sh2_read16_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_read16);
|
||||
sh2_write8_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_write8);
|
||||
sh2_write16_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_write16);
|
||||
sh2_write8_map[0x1f] = sh2_peripheral_write8;
|
||||
sh2_write16_map[0x1f] = sh2_peripheral_write16;
|
||||
|
||||
// map DRAM area, both 68k and SH2
|
||||
Pico32xSwapDRAM(1);
|
||||
|
||||
msh2.read8_map = ssh2.read8_map = sh2_read8_map;
|
||||
msh2.read16_map = ssh2.read16_map = sh2_read16_map;
|
||||
msh2.write8_map = ssh2.write8_map = sh2_write8_map;
|
||||
msh2.write16_map = ssh2.write16_map = sh2_write16_map;
|
||||
msh2.write8_tab = ssh2.write8_tab = (const void **)sh2_write8_map;
|
||||
msh2.write16_tab = ssh2.write16_tab = (const void **)sh2_write16_map;
|
||||
|
||||
// setup poll detector
|
||||
m68k_poll.flag = P32XF_68KPOLL;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue