From 0ce47d46e07dfb02f3eeef481b963927beeee481 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Wed, 26 Jan 2011 18:31:27 +0200
Subject: [PATCH] drc: invalidate RAM mirrors correctly
---
libpcsxcore/new_dynarec/emu_if.c | 9 +++------
libpcsxcore/new_dynarec/new_dynarec.c | 7 +++++++
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/libpcsxcore/new_dynarec/emu_if.c b/libpcsxcore/new_dynarec/emu_if.c
index 09428748..bdb96755 100644
--- a/libpcsxcore/new_dynarec/emu_if.c
+++ b/libpcsxcore/new_dynarec/emu_if.c
@@ -202,23 +202,20 @@ static void ari64_execute()
static void ari64_clear(u32 addr, u32 size)
{
- u32 start, end;
+ u32 start, end, main_ram;
size *= 4; /* PCSX uses DMA units */
evprintf("ari64_clear %08x %04x\n", addr, size);
/* check for RAM mirrors */
- if ((addr & ~0xe0600000) < 0x200000) {
- addr &= ~0xe0600000;
- addr |= 0x80000000;
- }
+ main_ram = (addr & 0xffe00000) == 0x80000000;
start = addr >> 12;
end = (addr + size) >> 12;
for (; start <= end; start++)
- if (!invalid_code[start])
+ if (!main_ram || !invalid_code[start])
invalidate_block(start);
}
diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index b2b5d289..abfd8340 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -309,7 +309,14 @@ static void tlb_hacks()
static u_int get_page(u_int vaddr)
{
+#ifndef PCSX
u_int page=(vaddr^0x80000000)>>12;
+#else
+ u_int page=vaddr&~0xe0000000;
+ if (page < 0x1000000)
+ page &= ~0x0e00000; // RAM mirrors
+ page>>=12;
+#endif
#ifndef DISABLE_TLB
if(page>262143&&tlb_LUT_r[vaddr>>12]) page=(tlb_LUT_r[vaddr>>12]^0x80000000)>>12;
#endif
--
2.39.5