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some more risky timing changes

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But should be closer to the real thing.
Let's see what this will break...
This commit is contained in:
notaz 2017-10-02 23:38:12 +03:00
parent 8f80007bcc
commit e42a47e208
10 changed files with 129 additions and 81 deletions
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23
pico/pico_int.h
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@ -283,6 +283,7 @@ extern SH2 sh2s[2];
#define OSC_NTSC 53693100
#define OSC_PAL 53203424
// PicoVideo.debug_p
#define PVD_KILL_A (1 << 0)
#define PVD_KILL_B (1 << 1)
#define PVD_KILL_S_LO (1 << 2)
@ -292,6 +293,20 @@ extern SH2 sh2s[2];
#define PVD_FORCE_B (1 << 6)
#define PVD_FORCE_S (1 << 7)
// PicoVideo.status, not part of real SR
#define SR_PAL (1 << 0)
#define SR_DMA (1 << 1)
#define SR_HB (1 << 2)
#define SR_VB (1 << 3)
#define SR_ODD (1 << 4)
#define SR_C (1 << 5)
#define SR_SOVR (1 << 6)
#define SR_F (1 << 7)
#define SR_FULL (1 << 8)
#define SR_EMPT (1 << 9)
// not part of real SR
#define PVS_ACTIVE (1 << 16)
struct PicoVideo
{
unsigned char reg[0x20];
@ -299,14 +314,15 @@ struct PicoVideo
unsigned char pending; // 1 if waiting for second half of 32-bit command
unsigned char type; // Command type (v/c/vsram read/write)
unsigned short addr; // Read/Write address
int status; // Status bits
unsigned int status; // Status bits (SR) and extra flags
unsigned char pending_ints; // pending interrupts: ??VH????
signed char lwrite_cnt; // VDP write count during active display line
unsigned short v_counter; // V-counter
unsigned short debug; // raw debug register
unsigned char debug_p; // ... parsed: PVD_*
unsigned char addr_u;
unsigned char pad[0x0c];
unsigned char addr_u; // bit16 of .addr
unsigned char hint_cnt;
unsigned char pad[0x0b];
};
struct PicoMisc
@ -684,7 +700,6 @@ extern struct Pico Pico;
extern struct PicoSRAM SRam;
extern int PicoPadInt[2];
extern int emustatus;
extern int scanlines_total;
extern void (*PicoResetHook)(void);
extern void (*PicoLineHook)(void);
PICO_INTERNAL int CheckDMA(void);