From 485432c1988ab203ca85cd122f03118dcc2d9f8d Mon Sep 17 00:00:00 2001
From: iCatButler <i.am.catbutler@gmail.com>
Date: Thu, 30 Jun 2016 11:49:11 +0100
Subject: Initialise GTE and CPU regsiters (invalidate)

---
 libpcsxcore/pgxp_cpu.c |  6 ++++++
 libpcsxcore/pgxp_cpu.h |  2 ++
 libpcsxcore/pgxp_gte.c |  6 +++++-
 libpcsxcore/pgxp_gte.h |  2 ++
 libpcsxcore/pgxp_mem.c | 11 ++++++++++-
 5 files changed, 25 insertions(+), 2 deletions(-)

(limited to 'libpcsxcore')

diff --git a/libpcsxcore/pgxp_cpu.c b/libpcsxcore/pgxp_cpu.c
index 17853afc..f2fff96e 100644
--- a/libpcsxcore/pgxp_cpu.c
+++ b/libpcsxcore/pgxp_cpu.c
@@ -20,6 +20,12 @@ PGXP_value* CP0_reg = CP0_reg_mem;
 #define rs(_instr)		((_instr >> 21) & 0x1F)	// The rs part of the instruction register 
 #define imm(_instr)		(_instr & 0xFFFF)		// The immediate part of the instruction register
 
+void PGXP_InitCPU()
+{
+	memset(CPU_reg_mem, 0, sizeof(CPU_reg_mem));
+	memset(CP0_reg_mem, 0, sizeof(CP0_reg_mem));
+}
+
 // invalidate register (invalid 8 bit read)
 void InvalidLoad(u32 addr, u32 code, u32 value)
 {
diff --git a/libpcsxcore/pgxp_cpu.h b/libpcsxcore/pgxp_cpu.h
index 00a4cd60..a518c312 100644
--- a/libpcsxcore/pgxp_cpu.h
+++ b/libpcsxcore/pgxp_cpu.h
@@ -39,6 +39,8 @@ extern PGXP_value* CP0_reg;
 #define CPU_Lo CPU_reg[34]
 
 
+void PGXP_InitCPU();
+
 // -- CPU functions
 
 // Load 32-bit word
diff --git a/libpcsxcore/pgxp_gte.c b/libpcsxcore/pgxp_gte.c
index de5f7a37..2ab36d12 100644
--- a/libpcsxcore/pgxp_gte.c
+++ b/libpcsxcore/pgxp_gte.c
@@ -44,7 +44,11 @@ PGXP_value GTE_ctrl_reg_mem[32];
 PGXP_value* GTE_data_reg = GTE_data_reg_mem;
 PGXP_value* GTE_ctrl_reg = GTE_ctrl_reg_mem;
 
-
+void PGXP_InitGTE()
+{
+	memset(GTE_data_reg_mem, 0, sizeof(GTE_data_reg_mem));
+	memset(GTE_ctrl_reg_mem, 0, sizeof(GTE_ctrl_reg_mem));
+}
 
 // Instruction register decoding
 #define op(_instr)		(_instr >> 26)			// The op part of the instruction register 
diff --git a/libpcsxcore/pgxp_gte.h b/libpcsxcore/pgxp_gte.h
index 4b628026..5c068eeb 100644
--- a/libpcsxcore/pgxp_gte.h
+++ b/libpcsxcore/pgxp_gte.h
@@ -36,6 +36,8 @@ typedef struct PGXP_value_Tag PGXP_value;
 extern PGXP_value* GTE_data_reg;
 extern PGXP_value* GTE_ctrl_reg;
 
+void PGXP_InitGTE();
+
 // -- GTE functions
 // Transforms
 void	PGXP_pushSXYZ2f(float _x, float _y, float _z, unsigned int _v);
diff --git a/libpcsxcore/pgxp_mem.c b/libpcsxcore/pgxp_mem.c
index 6aa3f1f2..c3fdc9eb 100644
--- a/libpcsxcore/pgxp_mem.c
+++ b/libpcsxcore/pgxp_mem.c
@@ -1,4 +1,6 @@
 #include "pgxp_mem.h"
+#include "pgxp_cpu.h"
+#include "pgxp_gte.h"
 #include "pgxp_value.h"
 
 PGXP_value Mem[3 * 2048 * 1024 / 4];		// mirror 2MB in 32-bit words * 3
@@ -7,11 +9,18 @@ const u32 ScratchOffset = 2048 * 1024 / 4;
 const u32 RegisterOffset = 2 * 2048 * 1024 / 4;
 const u32 InvalidAddress = 3 * 2048 * 1024 / 4;
 
-void PGXP_Init()
+void PGXP_InitMem()
 {
 	memset(Mem, 0, sizeof(Mem));
 }
 
+void PGXP_Init()
+{
+	PGXP_InitMem();
+	PGXP_InitCPU();
+	PGXP_InitGTE();
+}
+
 char* PGXP_GetMem()
 {
 	return (char*)(Mem); // Config.PGXP_GTE ? (char*)(Mem) : NULL;
-- 
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