mirror of https://github.com/PCSX2/pcsx2.git
127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "Vif.h"
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#include "Vif_Unpack.h"
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struct vifCode {
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u32 addr;
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u32 size;
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u32 cmd;
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u16 wl;
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u16 cl;
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};
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union tBITBLTBUF {
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u64 _u64;
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struct {
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u32 SBP : 14;
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u32 _pad14 : 2;
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u32 SBW : 6;
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u32 _pad22 : 2;
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u32 SPSM : 6;
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u32 _pad30 : 2;
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u32 DBP : 14;
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u32 _pad46 : 2;
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u32 DBW : 6;
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u32 _pad54 : 2;
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u32 DPSM : 6;
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u32 _pad62 : 2;
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};
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};
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union tTRXREG {
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u64 _u64;
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struct {
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u32 RRW : 12;
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u32 _pad12 : 20;
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u32 RRH : 12;
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u32 _pad44 : 20;
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};
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};
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// NOTE, if debugging vif stalls, use sega classics, spyro, gt4, and taito
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struct vifStruct {
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u128 MaskRow, MaskCol;
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vifCode tag;
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int cmd;
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int irq;
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int cl;
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int qwcalign;
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u8 usn;
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bool done;
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bool vifstalled;
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bool stallontag;
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// GS registers used for calculating the size of the last local->host transfer initiated on the GS
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// Transfer size calculation should be restricted to GS emulation in the future
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tBITBLTBUF BITBLTBUF;
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tTRXREG TRXREG;
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u32 GSLastDownloadSize;
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u8 irqoffset; // 32bit offset where next vif code is
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u32 savedtag; // need this for backwards compat with save states
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u32 vifpacketsize;
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u8 inprogress;
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u32 lastcmd;
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u8 dmamode;
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u8 GifWaitState; // 0 = General PATH checking, 1 = Flush path 3, 2 == Wait for VU1
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};
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extern __aligned16 vifStruct vif0, vif1;
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extern u8 schedulepath3msk;
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_vifT extern u32 vifRead32(u32 mem);
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_vifT extern bool vifWrite32(u32 mem, u32 value);
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extern void vif0Interrupt();
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extern void vif0Reset();
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extern void vif1Interrupt();
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extern void Vif1MskPath3();
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extern void vif1Reset();
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typedef int __fastcall FnType_VifCmdHandler(int pass, const u32 *data);
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typedef FnType_VifCmdHandler* Fnptr_VifCmdHandler;
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extern const __aligned16 Fnptr_VifCmdHandler vifCmdHandler[2][128];
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__fi static int _limit(int a, int max)
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{
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return ((a > max) ? max : a);
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}
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enum VifModes
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{
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VIF_NORMAL_TO_MEM_MODE = 0,
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VIF_NORMAL_FROM_MEM_MODE = 1,
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VIF_CHAIN_MODE = 2
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};
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// Generic constants
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static const unsigned int VIF0intc = 4;
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static const unsigned int VIF1intc = 5;
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extern u32 g_vifCycles;
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extern u32 g_vu0Cycles;
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extern u32 g_vu1Cycles;
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extern u32 g_packetsizeonvu;
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extern void vif0FLUSH();
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extern void vif1FLUSH();
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