X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pico%2Fpico_int.h;h=ef49295f83889b96bf118f384022662a9be92975;hb=add51c49ecdda53f59bd4c01d4b2e03817002a71;hp=aa8e49717cdae7d3c216fe798fe11d87e1e4407b;hpb=5ac99d9adf88799fd2de3ec787409ed1f2255168;p=picodrive.git diff --git a/pico/pico_int.h b/pico/pico_int.h index aa8e497..ef49295 100644 --- a/pico/pico_int.h +++ b/pico/pico_int.h @@ -37,13 +37,8 @@ extern "C" { #ifdef EMU_C68K #include "../cpu/cyclone/Cyclone.h" extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k; -#define SekCyclesLeftNoMCD PicoCpuCM68k.cycles // cycles left for this run -#define SekCyclesLeft \ - (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD) -#define SekCyclesLeftS68k \ - ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuCS68k.cycles) -#define SekEndTimeslice(after) PicoCpuCM68k.cycles=after -#define SekEndTimesliceS68k(after) PicoCpuCS68k.cycles=after +#define SekCyclesLeft PicoCpuCM68k.cycles // cycles left for this run +#define SekCyclesLeftS68k PicoCpuCS68k.cycles #define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase) #define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase) #define SekDar(x) (x < 8 ? PicoCpuCM68k.d[x] : PicoCpuCM68k.a[x - 8]) @@ -59,21 +54,13 @@ extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k; #define SekInterrupt(i) PicoCpuCM68k.irq=i #define SekIrqLevel PicoCpuCM68k.irq -#ifdef EMU_M68K -#define EMU_CORE_DEBUG -#endif #endif #ifdef EMU_F68K #include "../cpu/fame/fame.h" extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k; -#define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter -#define SekCyclesLeft \ - (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD) -#define SekCyclesLeftS68k \ - ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter) -#define SekEndTimeslice(after) PicoCpuFM68k.io_cycle_counter=after -#define SekEndTimesliceS68k(after) PicoCpuFS68k.io_cycle_counter=after +#define SekCyclesLeft PicoCpuFM68k.io_cycle_counter +#define SekCyclesLeftS68k PicoCpuFS68k.io_cycle_counter #define SekPc fm68k_get_pc(&PicoCpuFM68k) #define SekPcS68k fm68k_get_pc(&PicoCpuFS68k) #define SekDar(x) (x < 8 ? PicoCpuFM68k.dreg[x].D : PicoCpuFM68k.areg[x - 8].D) @@ -95,22 +82,14 @@ extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k; #define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq #define SekIrqLevel PicoCpuFM68k.interrupts[0] -#ifdef EMU_M68K -#define EMU_CORE_DEBUG -#endif #endif #ifdef EMU_M68K #include "../cpu/musashi/m68kcpu.h" extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k; #ifndef SekCyclesLeft -#define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles -#define SekCyclesLeft \ - (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD) -#define SekCyclesLeftS68k \ - ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles) -#define SekEndTimeslice(after) SET_CYCLES(after) -#define SekEndTimesliceS68k(after) PicoCpuMS68k.cyc_remaining_cycles=after +#define SekCyclesLeft PicoCpuMM68k.cyc_remaining_cycles +#define SekCyclesLeftS68k PicoCpuMS68k.cyc_remaining_cycles #define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC) #define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC) #define SekDar(x) PicoCpuMM68k.dar[x] @@ -140,52 +119,46 @@ extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k; #endif #endif // EMU_M68K -extern int SekCycleCnt; // cycles done in this frame -extern int SekCycleAim; // cycle aim -extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame +// while running, cnt represents target of current timeslice +// while not in SekRun(), it's actual cycles done +// (but always use SekCyclesDone() if you need current position) +// cnt may change if timeslice is ended prematurely or extended, +// so we use SekCycleAim for the actual target +extern unsigned int SekCycleCnt; +extern unsigned int SekCycleAim; -#define SekCyclesReset() { \ - SekCycleCntT+=SekCycleAim; \ - SekCycleCnt-=SekCycleAim; \ - SekCycleAim=0; \ -} -#define SekCyclesBurn(c) SekCycleCnt+=c -#define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere) -#define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom -#define SekCyclesDoneT2() (SekCycleCntT + SekCycleCnt) // same as above but not from memhandlers +// number of cycles done (can be checked anywhere) +#define SekCyclesDone() (SekCycleCnt - SekCyclesLeft) + +// burn cycles while not in SekRun() and while in +#define SekCyclesBurn(c) SekCycleCnt += c +#define SekCyclesBurnRun(c) SekCyclesLeft -= c +// note: sometimes may extend timeslice to delay an irq #define SekEndRun(after) { \ - SekCycleCnt -= SekCyclesLeft - (after); \ - if (SekCycleCnt < 0) SekCycleCnt = 0; \ - SekEndTimeslice(after); \ + SekCycleCnt -= SekCyclesLeft - (after); \ + SekCyclesLeft = after; \ } +extern unsigned int SekCycleCntS68k; +extern unsigned int SekCycleAimS68k; + #define SekEndRunS68k(after) { \ - SekCycleCntS68k -= SekCyclesLeftS68k - (after); \ - if (SekCycleCntS68k < 0) SekCycleCntS68k = 0; \ - SekEndTimesliceS68k(after); \ + if (SekCyclesLeftS68k > (after)) { \ + SekCycleCntS68k -= SekCyclesLeftS68k - (after); \ + SekCyclesLeftS68k = after; \ + } \ } -extern int SekCycleCntS68k; -extern int SekCycleAimS68k; +#define SekCyclesDoneS68k() (SekCycleCntS68k - SekCyclesLeftS68k) -#define SekCyclesResetS68k() { \ - SekCycleCntS68k-=SekCycleAimS68k; \ - SekCycleAimS68k=0; \ -} -#define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k) - -#ifdef EMU_CORE_DEBUG -extern int dbg_irq_level; -#undef SekEndTimeslice -#undef SekCyclesBurn -#undef SekEndRun -#undef SekInterrupt -#define SekEndTimeslice(c) -#define SekCyclesBurn(c) c -#define SekEndRun(c) -#define SekInterrupt(irq) dbg_irq_level=irq -#endif +// compare cycles, handling overflows +// check if a > b +#define CYCLES_GT(a, b) \ + ((int)((a) - (b)) > 0) +// check if a >= b +#define CYCLES_GE(a, b) \ + ((int)((a) - (b)) >= 0) // ----------------------- Z80 CPU ----------------------- @@ -221,13 +194,14 @@ extern struct DrZ80 drZ80; #define Z80_STATE_SIZE 0x60 -extern int z80stopCycle; /* in 68k cycles */ +extern unsigned int last_z80_sync; extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */ extern int z80_cycle_aim; extern int z80_scanline; extern int z80_scanline_cycles; /* cycles done until z80_scanline */ #define z80_resetCycles() \ + last_z80_sync = SekCyclesDone(); \ z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0; #define z80_cyclesDone() \ @@ -353,7 +327,7 @@ struct Pico unsigned short vsram[0x40]; // 0x22180 unsigned char *rom; // 0x22200 - unsigned int romsize; // 0x22204 + unsigned int romsize; // 0x22204 (on 32bits) struct PicoMisc m; struct PicoVideo video; @@ -410,14 +384,12 @@ struct mcd_misc unsigned char busreq; unsigned char s68k_pend_ints; unsigned int state_flags; // 04: emu state: reset_pending - unsigned int counter75hz; - unsigned int pad0; - int timer_int3; // 10 - unsigned int timer_stopwatch; + unsigned int stopwatch_base_c; + unsigned int pad[3]; unsigned char bcram_reg; // 18: battery-backed RAM cart register unsigned char pad2; unsigned short pad3; - int pad[9]; + int pad4[9]; }; typedef struct @@ -441,6 +413,7 @@ typedef struct unsigned char pcm_ram[0x10000]; unsigned char pcm_ram_b[0x10][0x1000]; }; + // FIXME: should be short unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs unsigned char bram[0x2000]; // 110200: 8K struct mcd_misc m; // 112200: misc @@ -482,8 +455,9 @@ typedef struct #define P32XP_FULL (1<<15) // PWM pulse #define P32XP_EMPTY (1<<14) -#define P32XF_68KCPOLL (1 << 0) -#define P32XF_68KVPOLL (1 << 1) +#define P32XF_68KCPOLL (1 << 0) +#define P32XF_68KVPOLL (1 << 1) +#define P32XF_Z80_32X_IO (1 << 7) // z80 does 32x io #define P32XI_VRES (1 << 14/2) // IRL/2 #define P32XI_VINT (1 << 12/2) @@ -542,12 +516,19 @@ struct Pico32xMem #ifdef DRC_SH2 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)]; #endif - unsigned char sh2_rom_m[0x800]; - unsigned char sh2_rom_s[0x400]; + union { + unsigned char b[0x800]; + unsigned short w[0x800/2]; + } sh2_rom_m; + union { + unsigned char b[0x400]; + unsigned short w[0x400/2]; + } sh2_rom_s; unsigned short pal[0x100]; unsigned short pal_native[0x100]; // converted to native (for renderer) signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame - signed short pwm_fifo[2][4]; // [0] - current, others - fifo entries + signed short pwm_current[2]; // current converted samples + unsigned short pwm_fifo[2][4]; // [0] - current raw, others - fifo entries }; // area.c @@ -598,14 +579,13 @@ unsigned int PicoRead8_io(unsigned int a); unsigned int PicoRead16_io(unsigned int a); void PicoWrite8_io(unsigned int a, unsigned int d); void PicoWrite16_io(unsigned int a, unsigned int d); -void p32x_dreq1_trigger(void); // pico/memory.c PICO_INTERNAL void PicoMemSetupPico(void); // cd/memory.c PICO_INTERNAL void PicoMemSetupCD(void); -void PicoMemStateLoaded(void); +void pcd_state_loaded_mem(void); // pico.c extern struct Pico Pico; @@ -617,15 +597,35 @@ extern void (*PicoResetHook)(void); extern void (*PicoLineHook)(void); PICO_INTERNAL int CheckDMA(void); PICO_INTERNAL void PicoDetectRegion(void); -PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done); +PICO_INTERNAL void PicoSyncZ80(unsigned int m68k_cycles_done); // cd/pico.c +#define PCDS_IEN1 (1<<1) +#define PCDS_IEN2 (1<<2) +#define PCDS_IEN3 (1<<3) +#define PCDS_IEN4 (1<<4) +#define PCDS_IEN5 (1<<5) +#define PCDS_IEN6 (1<<6) + PICO_INTERNAL void PicoInitMCD(void); PICO_INTERNAL void PicoExitMCD(void); PICO_INTERNAL void PicoPowerMCD(void); PICO_INTERNAL int PicoResetMCD(void); PICO_INTERNAL void PicoFrameMCD(void); +enum pcd_event { + PCD_EVENT_CDC, + PCD_EVENT_TIMER3, + PCD_EVENT_GFX, + PCD_EVENT_DMA, + PCD_EVENT_COUNT, +}; +extern unsigned int pcd_event_times[PCD_EVENT_COUNT]; +void pcd_event_schedule(unsigned int now, enum pcd_event event, int after); +void pcd_event_schedule_s68k(enum pcd_event event, int after); +unsigned int pcd_cycles_m68k_to_s68k(unsigned int c); +void pcd_state_loaded(void); + // pico/pico.c PICO_INTERNAL void PicoInitPico(void); PICO_INTERNAL void PicoReratePico(void); @@ -752,7 +752,7 @@ enum p32x_event { P32X_EVENT_HINT, P32X_EVENT_COUNT, }; -extern unsigned int event_times[P32X_EVENT_COUNT]; +extern unsigned int p32x_event_times[P32X_EVENT_COUNT]; void Pico32xInit(void); void PicoPower32x(void); @@ -764,6 +764,8 @@ void Pico32xStateLoaded(int is_early); void p32x_sync_sh2s(unsigned int m68k_target); void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target); void p32x_update_irls(SH2 *active_sh2, int m68k_cycles); +void p32x_trigger_irq(SH2 *sh2, int m68k_cycles, unsigned int mask); +void p32x_update_cmd_irq(SH2 *sh2, int m68k_cycles); void p32x_reset_sh2s(void); void p32x_event_schedule(unsigned int now, enum p32x_event event, int after); void p32x_event_schedule_sh2(SH2 *sh2, enum p32x_event event, int after); @@ -804,6 +806,7 @@ void p32x_pwm_update(int *buf32, int length, int stereo); void p32x_pwm_ctl_changed(void); void p32x_pwm_schedule(unsigned int m68k_now); void p32x_pwm_schedule_sh2(SH2 *sh2); +void p32x_pwm_sync_to_sh2(SH2 *sh2); void p32x_pwm_irq_event(unsigned int m68k_now); void p32x_pwm_state_loaded(void); @@ -873,6 +876,7 @@ static __inline int isspace_(int c) #define EL_32X 0x00080000 #define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */ #define EL_32XP 0x00200000 /* 32X peripherals */ +#define EL_CD 0x00400000 /* MCD */ #define EL_STATUS 0x40000000 /* status messages */ #define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */