-// PicoDrive\r
-\r
-// (c) Copyright 2004 Dave, All rights reserved.\r
-// (c) Copyright 2006-2008 notaz, All rights reserved.\r
-// Free for non-commercial use.\r
-\r
-// For commercial use, separate licencing terms must be obtained.\r
-\r
+/*\r
+ * PicoDrive\r
+ * (c) Copyright Dave, 2004\r
+ * (C) notaz, 2006-2010\r
+ *\r
+ * This work is licensed under the terms of MAME license.\r
+ * See COPYING file in the top-level directory.\r
+ */\r
\r
#include "pico_int.h"\r
#include "sound/ym2612.h"\r
\r
-int PicoVer=0x0133;\r
struct Pico Pico;\r
-int PicoOpt = 0;\r
-int PicoSkipFrame = 0; // skip rendering frame?\r
-int emustatus = 0; // rapid_ym2612, multi_ym_updates\r
+int PicoOpt; \r
+int PicoSkipFrame; // skip rendering frame?\r
int PicoPad[2]; // Joypads, format is MXYZ SACB RLDU\r
int PicoPadInt[2]; // internal copy\r
-int PicoAHW = 0; // active addon hardware: scd_active, 32x_active, svp_active, pico_active\r
-int PicoRegionOverride = 0; // override the region detection 0: Auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r
-int PicoAutoRgnOrder = 0;\r
-struct PicoSRAM SRam = {0,};\r
+int PicoAHW; // active addon hardware: PAHW_*\r
+int PicoRegionOverride; // override the region detection 0: Auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r
+int PicoAutoRgnOrder;\r
+\r
+struct PicoSRAM SRam;\r
+int emustatus; // rapid_ym2612, multi_ym_updates\r
+int scanlines_total;\r
+\r
+int p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;\r
+int p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;\r
\r
void (*PicoWriteSound)(int len) = NULL; // called at the best time to send sound buffer (PsndOut) to hardware\r
void (*PicoResetHook)(void) = NULL;\r
\r
PicoInitMCD();\r
PicoSVPInit();\r
-\r
- SRam.data=0;\r
+ Pico32xInit();\r
}\r
\r
// to be called once on emu exit\r
PicoCartUnload();\r
z80_exit();\r
\r
- if (SRam.data) free(SRam.data); SRam.data=0;\r
+ if (SRam.data)\r
+ free(SRam.data);\r
}\r
\r
void PicoPower(void)\r
{\r
- unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r
-\r
Pico.m.frame_count = 0;\r
\r
// clear all memory of the emulated machine\r
- memset(&Pico.ram,0,(unsigned int)&Pico.rom-(unsigned int)&Pico.ram);\r
+ memset(&Pico.ram,0,(unsigned char *)&Pico.rom - Pico.ram);\r
\r
memset(&Pico.video,0,sizeof(Pico.video));\r
memset(&Pico.m,0,sizeof(Pico.m));\r
if (PicoAHW & PAHW_MCD)\r
PicoPowerMCD();\r
\r
- Pico.m.sram_reg=sram_reg;\r
+ if (PicoOpt & POPT_EN_32X)\r
+ PicoPower32x();\r
+\r
PicoReset();\r
}\r
\r
else\r
{\r
// Read cartridge region data:\r
- int region=PicoRead32(0x1f0);\r
+ unsigned short *rd = (unsigned short *)(Pico.rom + 0x1f0);\r
+ int region = (rd[0] << 16) | rd[1];\r
\r
- for (i=0;i<4;i++)\r
+ for (i = 0; i < 4; i++)\r
{\r
- int c=0;\r
+ int c;\r
\r
- c=region>>(i<<3); c&=0xff;\r
- if (c<=' ') continue;\r
+ c = region >> (i<<3);\r
+ c &= 0xff;\r
+ if (c <= ' ') continue;\r
\r
if (c=='J') support|=1;\r
else if (c=='U') support|=4;\r
\r
int PicoReset(void)\r
{\r
- unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r
-\r
if (Pico.romsize <= 0)\r
return 1;\r
\r
if (PicoResetHook)\r
PicoResetHook();\r
\r
- PicoMemReset();\r
memset(&PicoPadInt,0,sizeof(PicoPadInt));\r
emustatus = 0;\r
\r
Pico.m.dirtyPal = 1;\r
\r
Pico.m.z80_bank68k = 0;\r
+ Pico.m.z80_reset = 1;\r
memset(Pico.zram, 0, sizeof(Pico.zram)); // ??\r
\r
PicoDetectRegion();\r
if (!(PicoOpt & POPT_DIS_IDLE_DET))\r
SekInitIdleDet();\r
\r
+ if (PicoOpt & POPT_EN_32X)\r
+ PicoReset32x();\r
+\r
// reset sram state; enable sram access by default if it doesn't overlap with ROM\r
- Pico.m.sram_reg=sram_reg&0x14;\r
- if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r
+ Pico.m.sram_reg = 0;\r
+ if ((SRam.flags & SRF_EEPROM) || Pico.romsize <= SRam.start)\r
+ Pico.m.sram_reg |= SRR_MAPPED;\r
\r
- elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r
- (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r
+ if (SRam.flags & SRF_ENABLED)\r
+ elprintf(EL_STATUS, "sram: %06x - %06x; eeprom: %i", SRam.start, SRam.end,\r
+ !!(SRam.flags & SRF_EEPROM));\r
\r
return 0;\r
}\r
\r
+// flush config changes before emu loop starts\r
+void PicoLoopPrepare(void)\r
+{\r
+ if (PicoRegionOverride)\r
+ // force setting possibly changed..\r
+ Pico.m.pal = (PicoRegionOverride == 2 || PicoRegionOverride == 8) ? 1 : 0;\r
+\r
+ // FIXME: PAL has 313 scanlines..\r
+ scanlines_total = Pico.m.pal ? 312 : 262;\r
+\r
+ if (PicoAHW & PAHW_32X)\r
+ p32x_timers_recalc();\r
+}\r
+\r
\r
// dma2vram settings are just hacks to unglitch Legend of Galahad (needs <= 104 to work)\r
// same for Outrunners (92-121, when active is set to 24)\r
static __inline void SekRunM68k(int cyc)\r
{\r
int cyc_do;\r
+ pprof_start(m68k);\r
+\r
SekCycleAim+=cyc;\r
if ((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;\r
#if defined(EMU_CORE_DEBUG)\r
#elif defined(EMU_F68K)\r
SekCycleCnt+=fm68k_emulate(cyc_do+1, 0, 0);\r
#endif\r
+\r
+ pprof_end(m68k);\r
}\r
\r
#include "pico_cmn.c"\r
z80_cycle_aim = cycles_68k_to_z80(m68k_cycles_done);\r
cnt = z80_cycle_aim - z80_cycle_cnt;\r
\r
+ pprof_start(z80);\r
+\r
elprintf(EL_BUSREQ, "z80 sync %i (%i|%i -> %i|%i)", cnt, z80_cycle_cnt, z80_cycle_cnt / 228,\r
z80_cycle_aim, z80_cycle_aim / 228);\r
\r
if (cnt > 0)\r
z80_cycle_cnt += z80_run(cnt);\r
+\r
+ pprof_end(z80);\r
}\r
\r
\r
void PicoFrame(void)\r
{\r
+ pprof_start(frame);\r
+\r
Pico.m.frame_count++;\r
\r
+ if (PicoAHW & PAHW_SMS) {\r
+ PicoFrameMS();\r
+ goto end;\r
+ }\r
+\r
+ // TODO: MCD+32X\r
if (PicoAHW & PAHW_MCD) {\r
PicoFrameMCD();\r
- return;\r
+ goto end;\r
}\r
- else if (PicoAHW & PAHW_SMS) {\r
- PicoFrameMS();\r
- return;\r
+\r
+ if (PicoAHW & PAHW_32X) {\r
+ PicoFrame32x();\r
+ goto end;\r
}\r
\r
//if(Pico.video.reg[12]&0x2) Pico.video.status ^= 0x10; // change odd bit in interlace mode\r
\r
- if (!(PicoOpt&POPT_ALT_RENDERER))\r
- PicoFrameStart();\r
-\r
+ PicoFrameStart();\r
PicoFrameHints();\r
+\r
+end:\r
+ pprof_end(frame);\r
}\r
\r
void PicoFrameDrawOnly(void)\r
{\r
- PicoFrameStart();\r
- PicoDrawSync(223, 0);\r
+ if (!(PicoAHW & PAHW_SMS)) {\r
+ PicoFrameStart();\r
+ PicoDrawSync(223, 0);\r
+ } else {\r
+ PicoFrameDrawOnlyMS();\r
+ }\r
}\r
\r
void PicoGetInternal(pint_t which, pint_ret_t *r)\r