\r
// provided by ASM code:\r
#ifdef _ASM_CD_MEMORY_C\r
-u32 PicoReadM68k8_io(u32 a);\r
-u32 PicoReadM68k16_io(u32 a);\r
-void PicoWriteM68k8_io(u32 a, u32 d);\r
-void PicoWriteM68k16_io(u32 a, u32 d);\r
-\r
u32 PicoReadS68k8_pr(u32 a);\r
u32 PicoReadS68k16_pr(u32 a);\r
void PicoWriteS68k8_pr(u32 a, u32 d);\r
\r
// poller detection\r
#define POLL_LIMIT 16\r
-#define POLL_CYCLES 124\r
+#define POLL_CYCLES 64\r
\r
void m68k_comm_check(u32 a)\r
{\r
pcd_sync_s68k(SekCyclesDone(), 0);\r
- if (a != Pico_mcd->m.m68k_poll_a) {\r
+ if (SekNotPolling || a != Pico_mcd->m.m68k_poll_a) {\r
Pico_mcd->m.m68k_poll_a = a;\r
Pico_mcd->m.m68k_poll_cnt = 0;\r
+ SekNotPolling = 0;\r
return;\r
}\r
Pico_mcd->m.m68k_poll_cnt++;\r
u32 dold;\r
a &= 0x3f;\r
\r
- Pico_mcd->m.m68k_poll_a =\r
- Pico_mcd->m.m68k_poll_cnt = 0;\r
-\r
switch (a) {\r
case 0:\r
d &= 1;\r
if (d == Pico_mcd->s68k_regs[a])\r
return;\r
\r
- Pico_mcd->s68k_regs[a] = d;\r
pcd_sync_s68k(SekCyclesDone(), 0);\r
- if (Pico_mcd->m.s68k_poll_a == a && Pico_mcd->m.s68k_poll_cnt > POLL_LIMIT) {\r
+ Pico_mcd->s68k_regs[a] = d;\r
+ if (Pico_mcd->m.s68k_poll_a == (a & ~1)\r
+ && Pico_mcd->m.s68k_poll_cnt > POLL_LIMIT)\r
+ {\r
SekSetStopS68k(0);\r
Pico_mcd->m.s68k_poll_a = 0;\r
elprintf(EL_CDPOLL, "s68k poll release, a=%02x", a);\r
}\r
}\r
\r
-#ifndef _ASM_CD_MEMORY_C\r
-static\r
-#endif\r
u32 s68k_poll_detect(u32 a, u32 d)\r
{\r
#ifdef USE_POLL_DETECT\r
return d;\r
\r
cycles = SekCyclesDoneS68k();\r
- if (a == Pico_mcd->m.s68k_poll_a) {\r
+ if (!SekNotPolling && a == Pico_mcd->m.s68k_poll_a) {\r
u32 clkdiff = cycles - Pico_mcd->m.s68k_poll_clk;\r
if (clkdiff <= POLL_CYCLES) {\r
cnt = Pico_mcd->m.s68k_poll_cnt + 1;\r
Pico_mcd->m.s68k_poll_a = a;\r
Pico_mcd->m.s68k_poll_clk = cycles;\r
Pico_mcd->m.s68k_poll_cnt = cnt;\r
+ SekNotPollingS68k = 0;\r
#endif\r
return d;\r
}\r
return;\r
}\r
\r
- elprintf(EL_UIO, "m68k unmapped w8 [%06x] %02x @%06x", a, d & 0xff, SekPc);\r
+ elprintf(EL_UIO, "m68k unmapped w8 [%06x] %02x @%06x",\r
+ a, d & 0xff, SekPc);\r
}\r
\r
static void PicoWriteM68k16_ramc(u32 a, u32 d)\r
{\r
- elprintf(EL_ANOMALY, "ramcart w16: [%06x] %04x @%06x", a, d, SekPcS68k);\r
+ elprintf(EL_ANOMALY, "ramcart w16: [%06x] %04x @%06x",\r
+ a, d, SekPcS68k);\r
PicoWriteM68k8_ramc(a + 1, d);\r
}\r
\r
// IO/control/cd registers (a10000 - ...)\r
#ifndef _ASM_CD_MEMORY_C\r
-static u32 PicoReadM68k8_io(u32 a)\r
+u32 PicoRead8_mcd_io(u32 a)\r
{\r
u32 d;\r
if ((a & 0xff00) == 0x2000) { // a12000 - a120ff\r
if (!(a & 1))\r
d >>= 8;\r
d &= 0xff;\r
- elprintf(EL_CDREGS, "m68k_regs r8: [%02x] %02x @%06x", a & 0x3f, d, SekPc);\r
+ elprintf(EL_CDREGS, "m68k_regs r8: [%02x] %02x @%06x",\r
+ a & 0x3f, d, SekPc);\r
return d;\r
}\r
\r
return PicoRead8_io(a);\r
}\r
\r
-static u32 PicoReadM68k16_io(u32 a)\r
+u32 PicoRead16_mcd_io(u32 a)\r
{\r
u32 d;\r
if ((a & 0xff00) == 0x2000) {\r
d = m68k_reg_read16(a);\r
- elprintf(EL_CDREGS, "m68k_regs r16: [%02x] %04x @%06x", a & 0x3f, d, SekPc);\r
+ elprintf(EL_CDREGS, "m68k_regs r16: [%02x] %04x @%06x",\r
+ a & 0x3f, d, SekPc);\r
return d;\r
}\r
\r
return PicoRead16_io(a);\r
}\r
\r
-static void PicoWriteM68k8_io(u32 a, u32 d)\r
+void PicoWrite8_mcd_io(u32 a, u32 d)\r
{\r
if ((a & 0xff00) == 0x2000) { // a12000 - a120ff\r
- elprintf(EL_CDREGS, "m68k_regs w8: [%02x] %02x @%06x", a&0x3f, d, SekPc);\r
+ elprintf(EL_CDREGS, "m68k_regs w8: [%02x] %02x @%06x",\r
+ a & 0x3f, d, SekPc);\r
m68k_reg_write8(a, d);\r
return;\r
}\r
PicoWrite16_io(a, d);\r
}\r
\r
-static void PicoWriteM68k16_io(u32 a, u32 d)\r
+void PicoWrite16_mcd_io(u32 a, u32 d)\r
{\r
if ((a & 0xff00) == 0x2000) { // a12000 - a120ff\r
- elprintf(EL_CDREGS, "m68k_regs w16: [%02x] %04x @%06x", a&0x3f, d, SekPc);\r
+ elprintf(EL_CDREGS, "m68k_regs w16: [%02x] %04x @%06x",\r
+ a & 0x3f, d, SekPc);\r
\r
m68k_reg_write8(a, d >> 8);\r
if ((a & 0x3e) != 0x0e) // special case\r
\r
static void s68k_unmapped_write8(u32 a, u32 d)\r
{\r
- elprintf(EL_UIO, "s68k unmapped w8 [%06x] %02x @%06x", a, d & 0xff, SekPc);\r
+ elprintf(EL_UIO, "s68k unmapped w8 [%06x] %02x @%06x",\r
+ a, d & 0xff, SekPc);\r
}\r
\r
static void s68k_unmapped_write16(u32 a, u32 d)\r
{\r
- elprintf(EL_UIO, "s68k unmapped w16 [%06x] %04x @%06x", a, d & 0xffff, SekPc);\r
+ elprintf(EL_UIO, "s68k unmapped w16 [%06x] %04x @%06x",\r
+ a, d & 0xffff, SekPc);\r
}\r
\r
// PRG RAM protected range (000000 - 01fdff)?\r
a &= 0x1ff;\r
if (a >= 0x0e && a < 0x30) {\r
d = Pico_mcd->s68k_regs[a];\r
- s68k_poll_detect(a, d);\r
+ s68k_poll_detect(a & ~1, d);\r
goto regs_done;\r
}\r
else if (a >= 0x58 && a < 0x68)\r
}\r
\r
// registers/IO:\r
- cpu68k_map_set(m68k_read8_map, 0xa10000, 0xa1ffff, PicoReadM68k8_io, 1);\r
- cpu68k_map_set(m68k_read16_map, 0xa10000, 0xa1ffff, PicoReadM68k16_io, 1);\r
- cpu68k_map_set(m68k_write8_map, 0xa10000, 0xa1ffff, PicoWriteM68k8_io, 1);\r
- cpu68k_map_set(m68k_write16_map, 0xa10000, 0xa1ffff, PicoWriteM68k16_io, 1);\r
+ cpu68k_map_set(m68k_read8_map, 0xa10000, 0xa1ffff, PicoRead8_mcd_io, 1);\r
+ cpu68k_map_set(m68k_read16_map, 0xa10000, 0xa1ffff, PicoRead16_mcd_io, 1);\r
+ cpu68k_map_set(m68k_write8_map, 0xa10000, 0xa1ffff, PicoWrite8_mcd_io, 1);\r
+ cpu68k_map_set(m68k_write16_map, 0xa10000, 0xa1ffff, PicoWrite16_mcd_io, 1);\r
\r
// sub68k map\r
cpu68k_map_set(s68k_read8_map, 0x000000, 0xffffff, s68k_unmapped_read8, 1);\r