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emulator timing fixes, VDP DMA fixes, improved DAC audio

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This commit is contained in:
kub 2020-01-14 23:00:44 +01:00
parent b9bc876c9c
commit 43e1401008
10 changed files with 118 additions and 98 deletions
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10
pico/pico_int.h
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@ -193,7 +193,7 @@ extern struct DrZ80 drZ80;
#define z80_int_assert(a) Cz80_Set_IRQ(&CZ80, 0, (a) ? ASSERT_LINE : CLEAR_LINE)
#define z80_nmi() Cz80_Set_IRQ(&CZ80, IRQ_LINE_NMI, 0)
#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)
#define z80_cyclesLeft CZ80.ICount
#define z80_subCLeft(c) CZ80.ICount -= c
#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)
@ -431,7 +431,9 @@ struct PicoSound
short len_use; // adjusted
int len_e_add; // for non-int samples/frame
int len_e_cnt;
short dac_line;
int dac_val, dac_val2; // last DAC sample
unsigned int dac_mult; // z80 clocks per line in Q16
unsigned int dac_pos; // last DAC position in Q16
short psg_line;
unsigned int fm_mult; // samples per line in Q16
unsigned int fm_pos; // last FM position in Q16
@ -738,7 +740,7 @@ extern struct Pico Pico;
extern struct PicoMem PicoMem;
extern void (*PicoResetHook)(void);
extern void (*PicoLineHook)(void);
PICO_INTERNAL int CheckDMA(void);
PICO_INTERNAL int CheckDMA(int cycles);
PICO_INTERNAL void PicoDetectRegion(void);
PICO_INTERNAL void PicoSyncZ80(unsigned int m68k_cycles_done);
@ -872,7 +874,7 @@ PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);
// sound/sound.c
PICO_INTERNAL void PsndReset(void);
PICO_INTERNAL void PsndStartFrame(void);
PICO_INTERNAL void PsndDoDAC(int line_to);
PICO_INTERNAL void PsndDoDAC(int cycle_to);
PICO_INTERNAL void PsndDoPSG(int line_to);
PICO_INTERNAL void PsndDoFM(int line_to);
PICO_INTERNAL void PsndClear(void);