libpcsxcore/r3000a.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  18  ***************************************************************************/
  19
  20 #ifndef __R3000A_H__
  21 #define __R3000A_H__
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif
  26
  27 #include "psxcommon.h"
  28 #include "psxmem.h"
  29 #include "psxcounters.h"
  30 #include "psxbios.h"
  31
  32 enum {
  33         R3000ACPU_NOTIFY_CACHE_ISOLATED = 0,
  34         R3000ACPU_NOTIFY_CACHE_UNISOLATED = 1,
  35         R3000ACPU_NOTIFY_DMA3_EXE_LOAD = 2
  36 };
  37
  38 typedef struct {
  39         int  (*Init)();
  40         void (*Reset)();
  41         void (*Execute)();              /* executes up to a break */
  42         void (*ExecuteBlock)(); /* executes up to a jump */
  43         void (*Clear)(u32 Addr, u32 Size);
  44         void (*Notify)(int note, void *data);
  45         void (*ApplyConfig)();
  46         void (*Shutdown)();
  47 } R3000Acpu;
  48
  49 extern R3000Acpu *psxCpu;
  50 extern R3000Acpu psxInt;
  51 extern R3000Acpu psxRec;
  52
  53 typedef union {
  54 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
  55         struct { u8 h3, h2, h, l; } b;
  56         struct { s8 h3, h2, h, l; } sb;
  57         struct { u16 h, l; } w;
  58         struct { s16 h, l; } sw;
  59 #else
  60         struct { u8 l, h, h2, h3; } b;
  61         struct { u16 l, h; } w;
  62         struct { s8 l, h, h2, h3; } sb;
  63         struct { s16 l, h; } sw;
  64 #endif
  65 } PAIR;
  66
  67 typedef union {
  68         struct {
  69                 u32   r0, at, v0, v1, a0, a1, a2, a3,
  70                                                 t0, t1, t2, t3, t4, t5, t6, t7,
  71                                                 s0, s1, s2, s3, s4, s5, s6, s7,
  72                                                 t8, t9, k0, k1, gp, sp, s8, ra, lo, hi;
  73         } n;
  74         u32 r[34]; /* Lo, Hi in r[32] and r[33] */
  75         PAIR p[34];
  76 } psxGPRRegs;
  77
  78 typedef union {
  79         struct {
  80                 u32     Index,     Random,    EntryLo0,  EntryLo1,
  81                                                 Context,   PageMask,  Wired,     Reserved0,
  82                                                 BadVAddr,  Count,     EntryHi,   Compare,
  83                                                 Status,    Cause,     EPC,       PRid,
  84                                                 Config,    LLAddr,    WatchLO,   WatchHI,
  85                                                 XContext,  Reserved1, Reserved2, Reserved3,
  86                                                 Reserved4, Reserved5, ECC,       CacheErr,
  87                                                 TagLo,     TagHi,     ErrorEPC,  Reserved6;
  88         } n;
  89         u32 r[32];
  90         PAIR p[32];
  91 } psxCP0Regs;
  92
  93 typedef struct {
  94         short x, y;
  95 } SVector2D;
  96
  97 typedef struct {
  98         short z, pad;
  99 } SVector2Dz;
 100
 101 typedef struct {
 102         short x, y, z, pad;
 103 } SVector3D;
 104
 105 typedef struct {
 106         short x, y, z, pad;
 107 } LVector3D;
 108
 109 typedef struct {
 110         unsigned char r, g, b, c;
 111 } CBGR;
 112
 113 typedef struct {
 114         short m11, m12, m13, m21, m22, m23, m31, m32, m33, pad;
 115 } SMatrix3D;
 116
 117 typedef union {
 118         struct {
 119                 SVector3D     v0, v1, v2;
 120                 CBGR          rgb;
 121                 s32          otz;
 122                 s32          ir0, ir1, ir2, ir3;
 123                 SVector2D     sxy0, sxy1, sxy2, sxyp;
 124                 SVector2Dz    sz0, sz1, sz2, sz3;
 125                 CBGR          rgb0, rgb1, rgb2;
 126                 s32          reserved;
 127                 s32          mac0, mac1, mac2, mac3;
 128                 u32 irgb, orgb;
 129                 s32          lzcs, lzcr;
 130         } n;
 131         u32 r[32];
 132         PAIR p[32];
 133 } psxCP2Data;
 134
 135 typedef union {
 136         struct {
 137                 SMatrix3D rMatrix;
 138                 s32      trX, trY, trZ;
 139                 SMatrix3D lMatrix;
 140                 s32      rbk, gbk, bbk;
 141                 SMatrix3D cMatrix;
 142                 s32      rfc, gfc, bfc;
 143                 s32      ofx, ofy;
 144                 s32      h;
 145                 s32      dqa, dqb;
 146                 s32      zsf3, zsf4;
 147                 s32      flag;
 148         } n;
 149         u32 r[32];
 150         PAIR p[32];
 151 } psxCP2Ctrl;
 152
 153 enum {
 154         PSXINT_SIO = 0,
 155         PSXINT_CDR,
 156         PSXINT_CDREAD,
 157         PSXINT_GPUDMA,
 158         PSXINT_MDECOUTDMA,
 159         PSXINT_SPUDMA,
 160         PSXINT_GPUBUSY,
 161         PSXINT_MDECINDMA,
 162         PSXINT_GPUOTCDMA,
 163         PSXINT_CDRDMA,
 164         PSXINT_NEWDRC_CHECK,
 165         PSXINT_RCNT,
 166         PSXINT_CDRLID,
 167         PSXINT_CDRPLAY_OLD,     /* unused */
 168         PSXINT_SPU_UPDATE,
 169         PSXINT_COUNT
 170 };
 171
 172 typedef struct psxCP2Regs {
 173         psxCP2Data CP2D;        /* Cop2 data registers */
 174         psxCP2Ctrl CP2C;        /* Cop2 control registers */
 175 } psxCP2Regs;
 176
 177 typedef struct {
 178         psxGPRRegs GPR;         /* General Purpose Registers */
 179         psxCP0Regs CP0;         /* Coprocessor0 Registers */
 180         union {
 181                 struct {
 182                         psxCP2Data CP2D;        /* Cop2 data registers */
 183                         psxCP2Ctrl CP2C;        /* Cop2 control registers */
 184                 };
 185                 psxCP2Regs CP2;
 186         };
 187     u32 pc;                             /* Program counter */
 188     u32 code;                   /* The instruction */
 189         u32 cycle;
 190         u32 interrupt;
 191         struct { u32 sCycle, cycle; } intCycle[32];
 192         u32 gteBusyCycle;
 193         u32 muldivBusyCycle;
 194         u32 subCycle;           /* interpreter cycle counting */
 195         u32 subCycleStep;
 196         // warning: changing anything in psxRegisters requires update of all
 197         // asm in libpcsxcore/new_dynarec/
 198 } psxRegisters;
 199
 200 extern psxRegisters psxRegs;
 201
 202 /* new_dynarec stuff */
 203 extern u32 event_cycles[PSXINT_COUNT];
 204 extern u32 next_interupt;
 205
 206 void new_dyna_before_save(void);
 207 void new_dyna_after_save(void);
 208 void new_dyna_freeze(void *f, int mode);
 209
 210 #define new_dyna_set_event_abs(e, abs) { \
 211         u32 abs_ = abs; \
 212         s32 di_ = next_interupt - abs_; \
 213         event_cycles[e] = abs_; \
 214         if (di_ > 0) { \
 215                 /*printf("%u: next_interupt %u -> %u\n", psxRegs.cycle, next_interupt, abs_);*/ \
 216                 next_interupt = abs_; \
 217         } \
 218 }
 219
 220 #define new_dyna_set_event(e, c) \
 221         new_dyna_set_event_abs(e, psxRegs.cycle + (c))
 222
 223 int  psxInit();
 224 void psxReset();
 225 void psxShutdown();
 226 void psxException(u32 code, u32 bd);
 227 void psxBranchTest();
 228 void psxExecuteBios();
 229 void psxJumpTest();
 230
 231 #ifdef __cplusplus
 232 }
 233 #endif
 234 #endif