pcsx2/pcsx2/Vif_Dma.h

138 lines
3.0 KiB
C

/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2010 PCSX2 Dev Team
*
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "Vif.h"
#include "Vif_Unpack.h"
struct vifCode {
u32 addr;
u32 size;
u32 cmd;
u16 wl;
u16 cl;
};
union tBITBLTBUF {
u64 _u64;
struct {
u32 SBP : 14;
u32 _pad14 : 2;
u32 SBW : 6;
u32 _pad22 : 2;
u32 SPSM : 6;
u32 _pad30 : 2;
u32 DBP : 14;
u32 _pad46 : 2;
u32 DBW : 6;
u32 _pad54 : 2;
u32 DPSM : 6;
u32 _pad62 : 2;
};
};
union tTRXREG {
u64 _u64;
struct {
u32 RRW : 12;
u32 _pad12 : 20;
u32 RRH : 12;
u32 _pad44 : 20;
};
};
struct tVIF_CTRL {
bool enabled;
u32 value;
};
// NOTE, if debugging vif stalls, use sega classics, spyro, gt4, and taito
struct vifStruct {
__aligned16 u128 MaskRow;
__aligned16 u128 MaskCol;
struct { // These must be together for MTVU
vifCode tag;
int cmd;
int pass;
int cl;
u8 usn;
u8 StructEnd; // Address of this is used to calculate end of struct
};
int irq;
bool done;
tVIF_CTRL vifstalled;
bool stallontag;
bool waitforvu;
// GS registers used for calculating the size of the last local->host transfer initiated on the GS
// Transfer size calculation should be restricted to GS emulation in the future
tBITBLTBUF BITBLTBUF;
tTRXREG TRXREG;
u32 GSLastDownloadSize;
tVIF_CTRL irqoffset; // 32bit offset where next vif code is
u32 vifpacketsize;
u8 inprogress;
u8 dmamode;
bool queued_program;
u32 queued_pc;
};
extern __aligned16 vifStruct vif0, vif1;
_vifT extern u32 vifRead32(u32 mem);
_vifT extern bool vifWrite32(u32 mem, u32 value);
void ExecuteVU(int idx);
extern void vif0Interrupt();
extern void vif0VUFinish();
extern void vif0Reset();
extern void vif1Interrupt();
extern void vif1VUFinish();
extern void vif1Reset();
typedef int __fastcall FnType_VifCmdHandler(int pass, const u32 *data);
typedef FnType_VifCmdHandler* Fnptr_VifCmdHandler;
extern const __aligned16 Fnptr_VifCmdHandler vifCmdHandler[2][128];
__fi static int _limit(int a, int max)
{
return ((a > max) ? max : a);
}
enum VifModes
{
VIF_NORMAL_TO_MEM_MODE = 0,
VIF_NORMAL_FROM_MEM_MODE = 1,
VIF_CHAIN_MODE = 2
};
// Generic constants
static const unsigned int VIF0intc = 4;
static const unsigned int VIF1intc = 5;
extern u32 g_vif0Cycles;
extern u32 g_vif1Cycles;
extern void vif0FLUSH();
extern void vif1FLUSH();
extern void vifExecQueue(int idx);