mirror of https://github.com/PCSX2/pcsx2.git
291 lines
6.4 KiB
C
291 lines
6.4 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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#define COPY_GS_PACKET_TO_MTGS 0
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#define PRINT_GIF_PACKET 0
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//#define GUNIT_LOG DevCon.WriteLn
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#define GUNIT_LOG(...) do {} while(0)
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//#define GUNIT_WARN DevCon.WriteLn
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#define GUNIT_WARN(...) do {} while(0)
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enum GIF_PATH {
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GIF_PATH_1 = 0,
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GIF_PATH_2,
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GIF_PATH_3,
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};
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// Lower byte contains path minus 1
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enum GIF_TRANSFER_TYPE {
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GIF_TRANS_INVALID = 0x000, // Invalid
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GIF_TRANS_XGKICK = 0x100, // Path 1
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GIF_TRANS_MTVU = 0x200, // Path 1
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GIF_TRANS_DIRECT = 0x301, // Path 2
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GIF_TRANS_DIRECTHL = 0x401, // Path 2
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GIF_TRANS_DMA = 0x502, // Path 3
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GIF_TRANS_FIFO = 0x602 // Path 3
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};
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static const char Gif_TransferStr[7][32] = {
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"Invalid Transfer Type",
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"GIF_TRANS_XGKICK",
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"GIF_TRANS_MTVU",
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"GIF_TRANS_DIRECT",
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"GIF_TRANS_DIRECTHL",
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"GIF_TRANS_DMA",
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"GIF_TRANS_FIFO"
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};
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enum GIF_PATH_STATE {
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GIF_PATH_IDLE = 0, // Path is idle (hasn't started a GS packet)
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GIF_PATH_PACKED = 1, // Path is on a PACKED gif tag
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GIF_PATH_REGLIST = 2, // Path is on a REGLIST gif tag
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GIF_PATH_IMAGE = 3, // Path is on a IMAGE gif tag
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GIF_PATH_WAIT = 4 // Used only by PATH3 to simulate packet length (Path 3 Masking)
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};
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enum gifstate_t {
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GIF_STATE_READY = 0,
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GIF_STATE_EMPTY = 0x10
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};
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struct gifStruct {
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int gifstate;
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bool gspath3done;
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u32 gscycles;
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u32 prevcycles;
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u32 mfifocycles;
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u32 gifqwc;
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bool gifmfifoirq;
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};
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extern __aligned16 gifStruct gif;
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struct GIF_Fifo
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{
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unsigned int data[64]; //16 QW FIFO
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unsigned int readdata[64]; //16 QW Inline for reading
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int readpos, writepos;
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int write(u32* pMem, int size);
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int read(bool calledFromDMA = false);
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void init();
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};
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extern GIF_Fifo gif_fifo;
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union tGIF_CTRL
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{
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struct {
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u32 RST : 1;
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u32 reserved1 : 2;
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u32 PSE : 1;
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u32 reserved2 : 28;
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};
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u32 _u32;
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tGIF_CTRL(u32 val) { _u32 = val; }
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void write(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"Ctrl: 0x%x", _u32); }
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};
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union tGIF_MODE
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{
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struct {
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u32 M3R : 1;
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u32 reserved1 : 1;
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u32 IMT : 1;
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u32 reserved2 : 29;
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};
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u32 _u32;
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tGIF_MODE(u32 val) { _u32 = val; }
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void write(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"Mode: 0x%x", _u32); }
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};
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union tGIF_STAT
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{
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struct {
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u32 M3R : 1; // GIF_MODE Mask
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u32 M3P : 1; // VIF PATH3 Mask
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u32 IMT : 1; // Intermittent Transfer Mode
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u32 PSE : 1; // Temporary Transfer Stop
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u32 reserved1 : 1; // ...
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u32 IP3 : 1; // Interrupted PATH3
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u32 P3Q : 1; // PATH3 request Queued
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u32 P2Q : 1; // PATH2 request Queued
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u32 P1Q : 1; // PATH1 request Queued
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u32 OPH : 1; // Output Path (Outputting Data)
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u32 APATH : 2; // Data Transfer Path (In progress)
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u32 DIR : 1; // Transfer Direction
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u32 reserved2 : 11; // ...
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u32 FQC : 5; // QWC in GIF-FIFO
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u32 reserved3 : 3; // ...
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};
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u32 _u32;
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tGIF_STAT(u32 val) { _u32 = val; }
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void write(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"Stat: 0x%x", _u32); }
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};
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union tGIF_TAG0
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{
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struct {
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u32 NLOOP : 15;
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u32 EOP : 1;
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u32 TAG : 16;
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};
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u32 _u32;
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tGIF_TAG0(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"Tag0: 0x%x", _u32); }
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};
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union tGIF_TAG1
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{
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struct {
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u32 TAG : 14;
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u32 PRE : 1;
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u32 PRIM : 11;
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u32 FLG : 2;
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u32 NREG : 4;
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};
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u32 _u32;
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tGIF_TAG1(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"Tag1: 0x%x", _u32); }
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};
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union tGIF_CNT
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{
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struct {
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u32 LOOPCNT : 15;
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u32 reserved1 : 1;
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u32 REGCNT : 4;
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u32 VUADDR : 2;
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u32 reserved2 : 10;
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};
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u32 _u32;
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tGIF_CNT(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"CNT: 0x%x", _u32); }
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};
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union tGIF_P3CNT
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{
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struct {
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u32 P3CNT : 15;
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u32 reserved1 : 17;
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};
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u32 _u32;
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tGIF_P3CNT(u32 val) { _u32 = val; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"P3CNT: 0x%x", _u32); }
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};
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union tGIF_P3TAG
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{
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struct {
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u32 LOOPCNT : 15;
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u32 EOP : 1;
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u32 reserved1 : 16;
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};
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u32 _u32;
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tGIF_P3TAG(u32 val) { _u32 = val; }
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bool test(u32 flags) { return !!(_u32 & flags); }
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void set_flags(u32 flags) { _u32 |= flags; }
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void clear_flags(u32 flags) { _u32 &= ~flags; }
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void reset() { _u32 = 0; }
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wxString desc() { return wxsFormat(L"P3Tag: 0x%x", _u32); }
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};
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struct GIFregisters
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{
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tGIF_CTRL ctrl;
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u32 padding[3];
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tGIF_MODE mode;
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u32 padding1[3];
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tGIF_STAT stat;
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u32 padding2[7];
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tGIF_TAG0 tag0;
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u32 padding3[3];
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tGIF_TAG1 tag1;
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u32 padding4[3];
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u32 tag2;
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u32 padding5[3];
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u32 tag3;
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u32 padding6[3];
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tGIF_CNT cnt;
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u32 padding7[3];
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tGIF_P3CNT p3cnt;
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u32 padding8[3];
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tGIF_P3TAG p3tag;
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u32 padding9[3];
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};
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static GIFregisters& gifRegs = (GIFregisters&)eeHw[0x3000];
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extern void gifInterrupt();
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extern int _GIFchain();
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extern void GIFdma();
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extern void dmaGIF();
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extern void mfifoGIFtransfer();
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extern void gifMFIFOInterrupt();
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extern void clearFIFOstuff(bool full);
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