diff options
Diffstat (limited to 'PcsxSrc/R3000A.c')
| -rw-r--r-- | PcsxSrc/R3000A.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/PcsxSrc/R3000A.c b/PcsxSrc/R3000A.c deleted file mode 100644 index e896c11..0000000 --- a/PcsxSrc/R3000A.c +++ /dev/null @@ -1,165 +0,0 @@ -/* Pcsx - Pc Psx Emulator - * Copyright (C) 1999-2002 Pcsx Team - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "PsxCommon.h" - -int psxInit() { - - if (Config.Cpu) psxCpu = &psxInt; -#ifdef __i386__ - else psxCpu = &psxRec; -#endif - if (psxMemInit() == -1) return -1; - - return psxCpu->Init(); -} - -void psxReset() { - - psxCpu->Reset(); - - psxMemReset(); - - memset(&psxRegs, 0, sizeof(psxRegs)); - - psxRegs.pc = 0xbfc00000; // Start in bootstrap - - psxRegs.CP0.r[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1 - psxRegs.CP0.r[15] = 0x00000002; // PRevID = Revision ID, same as R3000A - - psxHwReset(); - psxBiosInit(); - - if (!Config.HLE) psxExecuteBios(); - -#ifdef PSX_LOG - PSX_LOG("*BIOS END*\n"); -#endif -} - -void psxShutdown() { - psxMemShutdown(); - psxBiosShutdown(); - - psxCpu->Shutdown(); -} - -void psxException(u32 code, u32 bd) { - // Set the Cause - psxRegs.CP0.n.Cause = code; - -#ifdef PSXCPU_LOG - if (bd) PSXCPU_LOG("bd set\n"); -#endif - // Set the EPC & PC - if (bd) { - psxRegs.CP0.n.Cause|= 0x80000000; - psxRegs.CP0.n.EPC = (psxRegs.pc - 4); - } else - psxRegs.CP0.n.EPC = (psxRegs.pc); - - if (psxRegs.CP0.n.Status & 0x400000) - psxRegs.pc = 0xbfc00180; - else - psxRegs.pc = 0x80000080; - - // Set the Status - psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status &~0x3f) | - ((psxRegs.CP0.n.Status & 0xf) << 2); - - if (!Config.HLE && (((PSXMu32(psxRegs.CP0.n.EPC) >> 24) & 0xfe) == 0x4a)) { - // "hokuto no ken" / "Crash Bandicot 2" ... fix - PSXMu32(psxRegs.CP0.n.EPC)&= ~0x02000000; - } - - if (Config.HLE) psxBiosException(); -} - -void psxBranchTest() { - if ((psxRegs.cycle - psxNextsCounter) >= psxNextCounter) - psxRcntUpdate(); - - if (psxRegs.interrupt) { - if ((psxRegs.interrupt & 0x80) && (!Config.Sio)) { // sio - if ((psxRegs.cycle - psxRegs.intCycle[7]) >= psxRegs.intCycle[7+1]) { - psxRegs.interrupt&=~0x80; - sioInterrupt(); - } - } - if (psxRegs.interrupt & 0x04) { // cdr - if ((psxRegs.cycle - psxRegs.intCycle[2]) >= psxRegs.intCycle[2+1]) { - psxRegs.interrupt&=~0x04; - cdrInterrupt(); - } - } - if (psxRegs.interrupt & 0x040000) { // cdr read - if ((psxRegs.cycle - psxRegs.intCycle[2+16]) >= psxRegs.intCycle[2+16+1]) { - psxRegs.interrupt&=~0x040000; - cdrReadInterrupt(); - } - } - } - - if (psxHu32(0x1070) & psxHu32(0x1074)) { - if ((psxRegs.CP0.n.Status & 0x401) == 0x401) { -#ifdef PSXCPU_LOG -// PSXCPU_LOG("Interrupt: %x %x\n", HWMu32(0x1070), HWMu32(0x1074)); -#endif - psxException(0x400, 0); - } - } - - if (!Config.HLE && Config.PsxOut) { - u32 call = psxRegs.GPR.n.t1 & 0xff; - switch (psxRegs.pc & 0x1fffff) { - case 0xa0: -#ifdef PSXBIOS_LOG - if (call != 0x28 && call != 0xe) { - PSXBIOS_LOG("Bios call a0: %s (%x) %x,%x,%x,%x\n", biosA0n[call], call, psxRegs.GPR.n.a0, psxRegs.GPR.n.a1, psxRegs.GPR.n.a2, psxRegs.GPR.n.a3); } -#endif - if (biosA0[call]) - biosA0[call](); - break; - case 0xb0: -#ifdef PSXBIOS_LOG - if (call != 0x17 && call != 0xb) { - PSXBIOS_LOG("Bios call b0: %s (%x) %x,%x,%x,%x\n", biosB0n[call], call, psxRegs.GPR.n.a0, psxRegs.GPR.n.a1, psxRegs.GPR.n.a2, psxRegs.GPR.n.a3); } -#endif - if (biosB0[call]) - biosB0[call](); - break; - case 0xc0: -#ifdef PSXBIOS_LOG - PSXBIOS_LOG("Bios call c0: %s (%x) %x,%x,%x,%x\n", biosC0n[call], call, psxRegs.GPR.n.a0, psxRegs.GPR.n.a1, psxRegs.GPR.n.a2, psxRegs.GPR.n.a3); -#endif - if (biosC0[call]) - biosC0[call](); - break; - } - } -} - -void psxExecuteBios() { - while (psxRegs.pc != 0x80030000) - psxCpu->ExecuteBlock(); -} - |