/*
+ * SH2 addr lines:
+ * iii. .cc. ..xx * // Internal, Cs, x
+ *
* Register map:
* a15100 F....... R.....EA F.....AC N...VHMP 4000 // Fm Ren nrEs Aden Cart heN V H cMd Pwm
* a15102 ........ ......SM ? 4002 // intS intM
Pico32x.emu_flags |= P32XF_MSH2POLL; // id ? P32XF_SSH2POLL : P32XF_MSH2POLL;
for (i = 0; i < Pico32x.dmac_ptr && dmac0->tcr0 > 0; i++) {
- extern void p32x_sh2_write16(u32 a, u32 d, int id);
- elprintf(EL_32X, "dmaw [%08x] %04x, left %d", dmac0->dar0, Pico32x.dmac_fifo[i], *dreqlen);
- p32x_sh2_write16(dmac0->dar0, Pico32x.dmac_fifo[i], 0);
+ elprintf(EL_32X, "dmaw [%08x] %04x, left %d", dmac0->dar0, Pico32x.dmac_fifo[i], *dreqlen);
+ p32x_sh2_write16(dmac0->dar0, Pico32x.dmac_fifo[i], &msh2);
dmac0->dar0 += 2;
dmac0->tcr0--;
(*dreqlen)--;
elprintf(EL_UIO, "m68k unmapped w16 [%06x] %04x @%06x", a, d & 0xffff, SekPc);
}
-void Pico32xSwapDRAM(int b)
-{
- cpu68k_map_set(m68k_read8_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
- cpu68k_map_set(m68k_read16_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
- cpu68k_map_set(m68k_write8_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
- cpu68k_map_set(m68k_write16_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
-}
-
static void bank_switch(int b)
{
unsigned int rs, bank;
// SH2
// -----------------------------------------------------------------
-u32 p32x_sh2_read8(u32 a, int id)
+// read8
+static u32 sh2_read8_unmapped(u32 a, int id)
{
- u32 d = 0;
-
- if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
- return Pico32xMem->sh2_rom_m[a ^ 1];
- if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
- return Pico32xMem->sh2_rom_s[a ^ 1];
-
- if ((a & 0xdffc0000) == 0x06000000)
- return Pico32xMem->sdram[(a & 0x3ffff) ^ 1];
-
- if ((a & 0xdfc00000) == 0x02000000)
- if ((a & 0x003fffff) < Pico.romsize)
- return Pico.rom[(a & 0x3fffff) ^ 1];
-
- if ((a & ~0xfff) == 0xc0000000)
- return Pico32xMem->data_array[id][(a & 0xfff) ^ 1];
+ elprintf(EL_UIO, "%csh2 unmapped r8 [%08x] %02x @%06x",
+ id ? 's' : 'm', a, 0, sh2_pc(id));
+ return 0;
+}
- if ((a & 0xdffc0000) == 0x04000000) {
- /* XXX: overwrite readable as normal? */
- u8 *dram = (u8 *)Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1];
- return dram[(a & 0x1ffff) ^ 1];
- }
+static u32 sh2_read8_cs0(u32 a, int id)
+{
+ u32 d = 0;
- if ((a & 0xdfffff00) == 0x4000) {
+ // 0x3ff00 is veridied
+ if ((a & 0x3ff00) == 0x4000) {
d = p32x_sh2reg_read16(a, id);
goto out_16to8;
}
- if ((a & 0xdfffff00) == 0x4100) {
+ if ((a & 0x3ff00) == 0x4100) {
d = p32x_vdp_read16(a);
if (p32x_poll_detect(&sh2_poll[id], a, ash2_cycles_done(), 1))
ash2_end_run(8);
goto out_16to8;
}
- if ((a & 0xdfffff00) == 0x4200) {
+ // TODO: mirroring?
+ if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
+ return Pico32xMem->sh2_rom_m[a ^ 1];
+ if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
+ return Pico32xMem->sh2_rom_s[a ^ 1];
+
+ if ((a & 0x3ff00) == 0x4200) {
d = Pico32xMem->pal[(a & 0x1ff) / 2];
goto out_16to8;
}
- if ((a & 0xfffffe00) == 0xfffffe00)
- return sh2_peripheral_read8(a, id);
-
- elprintf(EL_UIO, "%csh2 unmapped r8 [%08x] %02x @%06x",
- id ? 's' : 'm', a, d, sh2_pc(id));
- return d;
+ return sh2_read8_unmapped(a, id);
out_16to8:
if (a & 1)
return d;
}
-u32 p32x_sh2_read16(u32 a, int id)
+static u32 sh2_read8_da(u32 a, int id)
{
- u32 d = 0;
-
- if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
- return *(u16 *)(Pico32xMem->sh2_rom_m + a);
- if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
- return *(u16 *)(Pico32xMem->sh2_rom_s + a);
-
- if ((a & 0xdffc0000) == 0x06000000)
- return ((u16 *)Pico32xMem->sdram)[(a & 0x3ffff) / 2];
-
- if ((a & 0xdfc00000) == 0x02000000)
- if ((a & 0x003fffff) < Pico.romsize)
- return ((u16 *)Pico.rom)[(a & 0x3fffff) / 2];
+ return Pico32xMem->data_array[id][(a & 0xfff) ^ 1];
+}
- if ((a & ~0xfff) == 0xc0000000)
- return ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2];
+// read16
+static u32 sh2_read16_unmapped(u32 a, int id)
+{
+ elprintf(EL_UIO, "%csh2 unmapped r16 [%08x] %04x @%06x",
+ id ? 's' : 'm', a, 0, sh2_pc(id));
+ return 0;
+}
- if ((a & 0xdffe0000) == 0x04000000)
- return Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1][(a & 0x1ffff) / 2];
+static u32 sh2_read16_cs0(u32 a, int id)
+{
+ u32 d = 0;
- if ((a & 0xdfffff00) == 0x4000) {
+ if ((a & 0x3ff00) == 0x4000) {
d = p32x_sh2reg_read16(a, id);
if (!(EL_LOGMASK & EL_PWM) && (a & 0x30) == 0x30) // hide PWM
return d;
goto out;
}
- if ((a & 0xdfffff00) == 0x4100) {
+ if ((a & 0x3ff00) == 0x4100) {
d = p32x_vdp_read16(a);
if (p32x_poll_detect(&sh2_poll[id], a, ash2_cycles_done(), 1))
ash2_end_run(8);
goto out;
}
- if ((a & 0xdfffff00) == 0x4200) {
+ if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
+ return *(u16 *)(Pico32xMem->sh2_rom_m + a);
+ if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
+ return *(u16 *)(Pico32xMem->sh2_rom_s + a);
+
+ if ((a & 0x3ff00) == 0x4200) {
d = Pico32xMem->pal[(a & 0x1ff) / 2];
goto out;
}
- if ((a & 0xfffffe00) == 0xfffffe00)
- return sh2_peripheral_read16(a, id);
-
- elprintf(EL_UIO, "%csh2 unmapped r16 [%08x] %04x @%06x",
- id ? 's' : 'm', a, d, sh2_pc(id));
- return d;
+ return sh2_read16_unmapped(a, id);
out:
elprintf(EL_32X, "%csh2 r16 [%08x] %04x @%06x",
return d;
}
-u32 p32x_sh2_read32(u32 a, int id)
+static u32 sh2_read16_da(u32 a, int id)
{
- if ((a & 0xfffffe00) == 0xfffffe00)
- return sh2_peripheral_read32(a, id);
-
-// elprintf(EL_UIO, "sh2 r32 [%08x] %08x @%06x", a, d, ash2_pc());
- return (p32x_sh2_read16(a, id) << 16) | p32x_sh2_read16(a + 2, id);
+ return ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2];
}
-void p32x_sh2_write8(u32 a, u32 d, int id)
+// write8
+static void sh2_write8_unmapped(u32 a, u32 d, int id)
{
- if ((a & 0xdffffc00) == 0x4000)
- elprintf(EL_32X, "%csh2 w8 [%08x] %02x @%06x",
- id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
-
- if ((a & 0xdffc0000) == 0x06000000) {
- Pico32xMem->sdram[(a & 0x3ffff) ^ 1] = d;
- return;
- }
-
- if ((a & 0xdffc0000) == 0x04000000) {
- u8 *dram;
- if (!(a & 0x20000) || d) {
- dram = (u8 *)Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1];
- dram[(a & 0x1ffff) ^ 1] = d;
- }
- return;
- }
+ elprintf(EL_UIO, "%csh2 unmapped w8 [%08x] %02x @%06x",
+ id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
+}
- if ((a & ~0xfff) == 0xc0000000) {
- Pico32xMem->data_array[id][(a & 0xfff) ^ 1] = d;
- return;
- }
+static void sh2_write8_cs0(u32 a, u32 d, int id)
+{
+ elprintf(EL_32X, "%csh2 w8 [%08x] %02x @%06x",
+ id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
- if ((a & 0xdfffff00) == 0x4100) {
+ if ((a & 0x3ff00) == 0x4100) {
p32x_vdp_write8(a, d);
return;
}
- if ((a & 0xdfffff00) == 0x4000) {
+ if ((a & 0x3ff00) == 0x4000) {
p32x_sh2reg_write8(a, d, id);
return;
}
- if ((a & 0xfffffe00) == 0xfffffe00) {
- sh2_peripheral_write8(a, d, id);
- return;
+ sh2_write8_unmapped(a, d, id);
+}
+
+#define sh2_write8_dramN(n) \
+ if (!(a & 0x20000) || d) { \
+ u8 *dram = (u8 *)Pico32xMem->dram[n]; \
+ dram[(a & 0x1ffff) ^ 1] = d; \
}
- elprintf(EL_UIO, "%csh2 unmapped w8 [%08x] %02x @%06x",
- id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
+static void sh2_write8_dram0(u32 a, u32 d, int id)
+{
+ sh2_write8_dramN(0);
}
-void p32x_sh2_write16(u32 a, u32 d, int id)
+static void sh2_write8_dram1(u32 a, u32 d, int id)
{
- if ((a & 0xdffffc00) == 0x4000 && ((EL_LOGMASK & EL_PWM) || (a & 0x30) != 0x30)) // hide PWM
- elprintf(EL_32X, "%csh2 w16 [%08x] %04x @%06x",
- id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
-
- // ignore "Associative purge space"
- if ((a & 0xf8000000) == 0x40000000)
- return;
+ sh2_write8_dramN(1);
+}
- if ((a & 0xdffc0000) == 0x06000000) {
- ((u16 *)Pico32xMem->sdram)[(a & 0x3ffff) / 2] = d;
- return;
- }
+static void sh2_write8_da(u32 a, u32 d, int id)
+{
+ Pico32xMem->data_array[id][(a & 0xfff) ^ 1] = d;
+}
- if ((a & ~0xfff) == 0xc0000000) {
- ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2] = d;
- return;
- }
+// write16
+static void sh2_write16_unmapped(u32 a, u32 d, int id)
+{
+ elprintf(EL_UIO, "%csh2 unmapped w16 [%08x] %04x @%06x",
+ id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
+}
- if ((a & 0xdffc0000) == 0x04000000) {
- u16 *pd = &Pico32xMem->dram[(Pico32x.vdp_regs[0x0a/2] & P32XV_FS) ^ 1][(a & 0x1ffff) / 2];
- if (!(a & 0x20000)) {
- *pd = d;
- return;
- }
- // overwrite
- if (!(d & 0xff00)) d |= *pd & 0xff00;
- if (!(d & 0x00ff)) d |= *pd & 0x00ff;
- *pd = d;
- return;
- }
+static void sh2_write16_cs0(u32 a, u32 d, int id)
+{
+ if (((EL_LOGMASK & EL_PWM) || (a & 0x30) != 0x30)) // hide PWM
+ elprintf(EL_32X, "%csh2 w16 [%08x] %04x @%06x",
+ id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
- if ((a & 0xdfffff00) == 0x4100) {
+ if ((a & 0x3ff00) == 0x4100) {
sh2_poll[id].cnt = 0; // for poll before VDP accesses
p32x_vdp_write16(a, d);
return;
}
- if ((a & 0xdffffe00) == 0x4200) {
+ if ((a & 0x3fe00) == 0x4200) {
Pico32xMem->pal[(a & 0x1ff) / 2] = d;
Pico32x.dirty_pal = 1;
return;
}
- if ((a & 0xdfffff00) == 0x4000) {
+ if ((a & 0x3ff00) == 0x4000) {
p32x_sh2reg_write16(a, d, id);
return;
}
- if ((a & 0xfffffe00) == 0xfffffe00) {
- sh2_peripheral_write16(a, d, id);
- return;
+ sh2_write16_unmapped(a, d, id);
+}
+
+#define sh2_write16_dramN(n) \
+ u16 *pd = &Pico32xMem->dram[n][(a & 0x1ffff) / 2]; \
+ if (!(a & 0x20000)) { \
+ *pd = d; \
+ return; \
+ } \
+ /* overwrite */ \
+ if (!(d & 0xff00)) d |= *pd & 0xff00; \
+ if (!(d & 0x00ff)) d |= *pd & 0x00ff; \
+ *pd = d
+
+static void sh2_write16_dram0(u32 a, u32 d, int id)
+{
+ sh2_write16_dramN(0);
+}
+
+static void sh2_write16_dram1(u32 a, u32 d, int id)
+{
+ sh2_write16_dramN(1);
+}
+
+static void sh2_write16_da(u32 a, u32 d, int id)
+{
+ ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2] = d;
+}
+
+
+typedef struct {
+ uptr addr; // stores (membase >> 1) or ((handler >> 1) | (1<<31))
+ u32 mask;
+} sh2_memmap;
+
+typedef u32 (sh2_read_handler)(u32 a, int id);
+typedef void (sh2_write_handler)(u32 a, u32 d, int id);
+
+#define SH2MAP_ADDR2OFFS(a) \
+ (((a >> 25) & 3) | ((a >> 27) & 0x1c))
+
+u32 p32x_sh2_read8(u32 a, SH2 *sh2)
+{
+ const sh2_memmap *sh2_map = sh2->read8_map;
+ uptr p;
+
+ sh2_map += SH2MAP_ADDR2OFFS(a);
+ p = sh2_map->addr;
+ if (p & (1 << 31))
+ return ((sh2_read_handler *)(p << 1))(a, sh2->is_slave);
+ else
+ return *(u8 *)((p << 1) + ((a & sh2_map->mask) ^ 1));
+}
+
+u32 p32x_sh2_read16(u32 a, SH2 *sh2)
+{
+ const sh2_memmap *sh2_map = sh2->read16_map;
+ uptr p;
+
+ sh2_map += SH2MAP_ADDR2OFFS(a);
+ p = sh2_map->addr;
+ if (p & (1 << 31))
+ return ((sh2_read_handler *)(p << 1))(a, sh2->is_slave);
+ else
+ return *(u16 *)((p << 1) + ((a & sh2_map->mask) & ~1));
+}
+
+u32 p32x_sh2_read32(u32 a, SH2 *sh2)
+{
+ const sh2_memmap *sh2_map = sh2->read16_map;
+ sh2_read_handler *handler;
+ u32 offs;
+ uptr p;
+
+ offs = SH2MAP_ADDR2OFFS(a);
+ sh2_map += offs;
+ p = sh2_map->addr;
+ if (!(p & (1 << 31))) {
+ // XXX: maybe 32bit access instead with ror?
+ u16 *pd = (u16 *)((p << 1) + ((a & sh2_map->mask) & ~1));
+ return (pd[0] << 16) | pd[1];
}
- elprintf(EL_UIO, "%csh2 unmapped w16 [%08x] %04x @%06x",
- id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
+ if (offs == 0x1f)
+ return sh2_peripheral_read32(a, sh2->is_slave);
+
+ handler = (sh2_read_handler *)(p << 1);
+ return (handler(a, sh2->is_slave) << 16) | handler(a + 2, sh2->is_slave);
+}
+
+void p32x_sh2_write8(u32 a, u32 d, SH2 *sh2)
+{
+ const sh2_memmap *sh2_map = sh2->write8_map;
+ uptr p;
+
+ 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;
+}
+
+void p32x_sh2_write16(u32 a, u32 d, SH2 *sh2)
+{
+ const sh2_memmap *sh2_map = sh2->write16_map;
+ uptr p;
+
+ 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;
}
-void p32x_sh2_write32(u32 a, u32 d, int id)
+void p32x_sh2_write32(u32 a, u32 d, SH2 *sh2)
{
- if ((a & 0xfffffe00) == 0xfffffe00) {
- sh2_peripheral_write32(a, d, id);
+ const sh2_memmap *sh2_map = sh2->write16_map;
+ 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;
}
- p32x_sh2_write16(a, d >> 16, id);
- p32x_sh2_write16(a + 2, d, id);
+ handler = (sh2_write_handler *)(p << 1);
+ handler(a, d >> 16, sh2->is_slave);
+ handler(a + 2, d, sh2->is_slave);
}
+// -----------------------------------------------------------------
+
static const u16 msh2_code[] = {
// trap instructions
0xaffe, // bra <self>
}
}
+#define MAP_MEMORY(m) ((uptr)(m) >> 1)
+#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];
+
+void Pico32xSwapDRAM(int b)
+{
+ cpu68k_map_set(m68k_read8_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
+ cpu68k_map_set(m68k_read16_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
+ cpu68k_map_set(m68k_write8_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
+ cpu68k_map_set(m68k_write16_map, 0x840000, 0x85ffff, Pico32xMem->dram[b], 0);
+
+ // SH2
+ 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);
+}
+
void PicoMemSetup32x(void)
{
unsigned int rs;
+ int i;
Pico32xMem = calloc(1, sizeof(*Pico32xMem));
if (Pico32xMem == NULL) {
cpu68k_map_set(m68k_write8_map, 0x000000, rs - 1, PicoWrite8_hint, 1); // TODO verify
cpu68k_map_set(m68k_write16_map, 0x000000, rs - 1, PicoWrite16_hint, 1);
- // DRAM area
- Pico32xSwapDRAM(1);
-
// 32X ROM (unbanked, XXX: consider mirroring?)
rs = (Pico.romsize + M68K_BANK_MASK) & ~M68K_BANK_MASK;
if (rs > 0x80000)
cpu68k_map_set(m68k_write8_map, 0xa10000, 0xa1ffff, PicoWrite8_32x_on, 1);
cpu68k_map_set(m68k_write16_map, 0xa10000, 0xa1ffff, PicoWrite16_32x_on, 1);
+ // SH2 maps: A31,A30,A29,CS1,CS0
+ // all unmapped by default
+ 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);
+ }
+
+ // 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);
+ // 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);
+ sh2_read8_map[1].mask = sh2_read8_map[5].mask =
+ sh2_read16_map[1].mask = sh2_read16_map[5].mask = 0x3fffff; // FIXME
+ // CS2 - DRAM - done by Pico32xSwapDRAM()
+ sh2_read8_map[2].mask = sh2_read8_map[6].mask =
+ 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_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 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 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);
+
+ // 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;
+
// setup poll detector
m68k_poll.flag = P32XF_68KPOLL;
m68k_poll.cyc_max = 64;
sh2_poll[1].cyc_max = 16;
}
+// vim:shiftwidth=2:expandtab
notaz.gp2x.de / picodrive.git / blobdiff