pcsxr-1.9.92

1 files changed, 96 insertions, 0 deletions

diff --git a/libpcsxcore/psxhle.c b/libpcsxcore/psxhle.c
new file mode 100644
index 0000000..83362ec
--- /dev/null
+++ b/libpcsxcore/psxhle.c
@@ -0,0 +1,96 @@
+/***************************************************************************
+ *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, 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.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
+ ***************************************************************************/
+
+/*
+* Internal PSX HLE functions.
+*/
+
+#include "psxhle.h"
+
+static void hleDummy() {
+	psxRegs.pc = psxRegs.GPR.n.ra;
+
+	psxBranchTest();
+}
+
+static void hleA0() {
+	u32 call = psxRegs.GPR.n.t1 & 0xff;
+
+	if (biosA0[call]) biosA0[call]();
+
+	psxBranchTest();
+}
+
+static void hleB0() {
+	u32 call = psxRegs.GPR.n.t1 & 0xff;
+
+	if (biosB0[call]) biosB0[call]();
+
+	psxBranchTest();
+}
+
+static void hleC0() {
+	u32 call = psxRegs.GPR.n.t1 & 0xff;
+
+	if (biosC0[call]) biosC0[call]();
+
+	psxBranchTest();
+}
+
+static void hleBootstrap() { // 0xbfc00000
+	SysPrintf("hleBootstrap\n");
+	CheckCdrom();
+	LoadCdrom();
+	SysPrintf("CdromLabel: \"%s\": PC = %8.8lx (SP = %8.8lx)\n", CdromLabel, psxRegs.pc, psxRegs.GPR.n.sp);
+}
+
+typedef struct {                   
+	u32 _pc0;      
+	u32 gp0;      
+	u32 t_addr;   
+	u32 t_size;   
+	u32 d_addr;   
+	u32 d_size;   
+	u32 b_addr;   
+	u32 b_size;   
+	u32 S_addr;
+	u32 s_size;
+	u32 _sp,_fp,_gp,ret,base;
+} EXEC;
+
+static void hleExecRet() {
+	EXEC *header = (EXEC*)PSXM(psxRegs.GPR.n.s0);
+
+	SysPrintf("ExecRet %x: %x\n", psxRegs.GPR.n.s0, header->ret);
+
+	psxRegs.GPR.n.ra = header->ret;
+	psxRegs.GPR.n.sp = header->_sp;
+	psxRegs.GPR.n.s8 = header->_fp;
+	psxRegs.GPR.n.gp = header->_gp;
+	psxRegs.GPR.n.s0 = header->base;
+
+	psxRegs.GPR.n.v0 = 1;
+	psxRegs.pc = psxRegs.GPR.n.ra;
+}
+
+void (*psxHLEt[256])() = {
+	hleDummy, hleA0, hleB0, hleC0,
+	hleBootstrap, hleExecRet,
+	hleDummy, hleDummy
+};