1 /***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
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. *
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. *
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 ***************************************************************************/
27 #include "psxcommon.h"
29 #include "psxcounters.h"
32 #ifdef ICACHE_EMULATION
34 R3000ACPU_NOTIFY_CACHE_ISOLATED = 0,
35 R3000ACPU_NOTIFY_CACHE_UNISOLATED = 1,
36 R3000ACPU_NOTIFY_DMA3_EXE_LOAD = 2
38 extern uint32_t *Read_ICache(uint32_t pc);
44 void (*Execute)(); /* executes up to a break */
45 void (*ExecuteBlock)(); /* executes up to a jump */
46 void (*Clear)(u32 Addr, u32 Size);
47 #ifdef ICACHE_EMULATION
48 void (*Notify)(int note, void *data);
53 extern R3000Acpu *psxCpu;
54 extern R3000Acpu psxInt;
55 extern R3000Acpu psxRec;
58 #if defined(__BIGENDIAN__)
59 struct { u8 h3, h2, h, l; } b;
60 struct { s8 h3, h2, h, l; } sb;
61 struct { u16 h, l; } w;
62 struct { s16 h, l; } sw;
64 struct { u8 l, h, h2, h3; } b;
65 struct { u16 l, h; } w;
66 struct { s8 l, h, h2, h3; } sb;
67 struct { s16 l, h; } sw;
73 u32 r0, at, v0, v1, a0, a1, a2, a3,
74 t0, t1, t2, t3, t4, t5, t6, t7,
75 s0, s1, s2, s3, s4, s5, s6, s7,
76 t8, t9, k0, k1, gp, sp, s8, ra, lo, hi;
78 u32 r[34]; /* Lo, Hi in r[32] and r[33] */
84 u32 Index, Random, EntryLo0, EntryLo1,
85 Context, PageMask, Wired, Reserved0,
86 BadVAddr, Count, EntryHi, Compare,
87 Status, Cause, EPC, PRid,
88 Config, LLAddr, WatchLO, WatchHI,
89 XContext, Reserved1, Reserved2, Reserved3,
90 Reserved4, Reserved5, ECC, CacheErr,
91 TagLo, TagHi, ErrorEPC, Reserved6;
114 unsigned char r, g, b, c;
118 short m11, m12, m13, m21, m22, m23, m31, m32, m33, pad;
123 SVector3D v0, v1, v2;
126 s32 ir0, ir1, ir2, ir3;
127 SVector2D sxy0, sxy1, sxy2, sxyp;
128 SVector2Dz sz0, sz1, sz2, sz3;
129 CBGR rgb0, rgb1, rgb2;
131 s32 mac0, mac1, mac2, mac3;
176 typedef struct psxCP2Regs {
177 psxCP2Data CP2D; /* Cop2 data registers */
178 psxCP2Ctrl CP2C; /* Cop2 control registers */
182 psxGPRRegs GPR; /* General Purpose Registers */
183 psxCP0Regs CP0; /* Coprocessor0 Registers */
186 psxCP2Data CP2D; /* Cop2 data registers */
187 psxCP2Ctrl CP2C; /* Cop2 control registers */
191 u32 pc; /* Program counter */
192 u32 code; /* The instruction */
195 struct { u32 sCycle, cycle; } intCycle[32];
198 extern psxRegisters psxRegs;
200 /* new_dynarec stuff */
201 extern u32 event_cycles[PSXINT_COUNT];
202 extern u32 next_interupt;
204 void new_dyna_before_save(void);
205 void new_dyna_after_save(void);
206 void new_dyna_freeze(void *f, int mode);
208 #define new_dyna_set_event(e, c) { \
210 u32 abs_ = psxRegs.cycle + c_; \
211 s32 odi_ = next_interupt - psxRegs.cycle; \
212 event_cycles[e] = abs_; \
214 /*printf("%u: next_interupt %d -> %d (%u)\n", psxRegs.cycle, odi_, c_, abs_);*/ \
215 next_interupt = abs_; \
219 #if defined(__BIGENDIAN__)
221 #define _i32(x) *(s32 *)&x
224 #define _i16(x) (((short *)&x)[1])
225 #define _u16(x) (((unsigned short *)&x)[1])
227 #define _i8(x) (((char *)&x)[3])
228 #define _u8(x) (((unsigned char *)&x)[3])
232 #define _i32(x) *(s32 *)&x
235 #define _i16(x) *(short *)&x
236 #define _u16(x) *(unsigned short *)&x
238 #define _i8(x) *(char *)&x
239 #define _u8(x) *(unsigned char *)&x
243 /**** R3000A Instruction Macros ****/
244 #define _PC_ psxRegs.pc // The next PC to be executed
246 #define _fOp_(code) ((code >> 26) ) // The opcode part of the instruction register
247 #define _fFunct_(code) ((code ) & 0x3F) // The funct part of the instruction register
248 #define _fRd_(code) ((code >> 11) & 0x1F) // The rd part of the instruction register
249 #define _fRt_(code) ((code >> 16) & 0x1F) // The rt part of the instruction register
250 #define _fRs_(code) ((code >> 21) & 0x1F) // The rs part of the instruction register
251 #define _fSa_(code) ((code >> 6) & 0x1F) // The sa part of the instruction register
252 #define _fIm_(code) ((u16)code) // The immediate part of the instruction register
253 #define _fTarget_(code) (code & 0x03ffffff) // The target part of the instruction register
255 #define _fImm_(code) ((s16)code) // sign-extended immediate
256 #define _fImmU_(code) (code&0xffff) // zero-extended immediate
258 #define _Op_ _fOp_(psxRegs.code)
259 #define _Funct_ _fFunct_(psxRegs.code)
260 #define _Rd_ _fRd_(psxRegs.code)
261 #define _Rt_ _fRt_(psxRegs.code)
262 #define _Rs_ _fRs_(psxRegs.code)
263 #define _Sa_ _fSa_(psxRegs.code)
264 #define _Im_ _fIm_(psxRegs.code)
265 #define _Target_ _fTarget_(psxRegs.code)
267 #define _Imm_ _fImm_(psxRegs.code)
268 #define _ImmU_ _fImmU_(psxRegs.code)
270 #define _rRs_ psxRegs.GPR.r[_Rs_] // Rs register
271 #define _rRt_ psxRegs.GPR.r[_Rt_] // Rt register
272 #define _rRd_ psxRegs.GPR.r[_Rd_] // Rd register
273 #define _rSa_ psxRegs.GPR.r[_Sa_] // Sa register
274 #define _rFs_ psxRegs.CP0.r[_Rd_] // Fs register
276 #define _c2dRs_ psxRegs.CP2D.r[_Rs_] // Rs cop2 data register
277 #define _c2dRt_ psxRegs.CP2D.r[_Rt_] // Rt cop2 data register
278 #define _c2dRd_ psxRegs.CP2D.r[_Rd_] // Rd cop2 data register
279 #define _c2dSa_ psxRegs.CP2D.r[_Sa_] // Sa cop2 data register
281 #define _rHi_ psxRegs.GPR.n.hi // The HI register
282 #define _rLo_ psxRegs.GPR.n.lo // The LO register
284 #define _JumpTarget_ ((_Target_ * 4) + (_PC_ & 0xf0000000)) // Calculates the target during a jump instruction
285 #define _BranchTarget_ ((s16)_Im_ * 4 + _PC_) // Calculates the target during a branch instruction
287 #define _SetLink(x) psxRegs.GPR.r[x] = _PC_ + 4; // Sets the return address in the link register
292 void psxException(u32 code, u32 bd);
293 void psxBranchTest();
294 void psxExecuteBios();
295 int psxTestLoadDelay(int reg, u32 tmp);
296 void psxDelayTest(int reg, u32 bpc);
297 void psxTestSWInts();