From ad45ce8499f59e5afd47236e6005fa7da7d9d9db Mon Sep 17 00:00:00 2001
From: joevt <joevt@shaw.ca>
Date: Wed, 24 Apr 2024 06:29:22 -0700
Subject: [PATCH] ppcmmu: Make dummy pages two pages.

In case we need a write to span a page boundary.
---
 cpu/ppc/ppcmmu.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cpu/ppc/ppcmmu.cpp b/cpu/ppc/ppcmmu.cpp
index ff025bf..0f849e8 100644
--- a/cpu/ppc/ppcmmu.cpp
+++ b/cpu/ppc/ppcmmu.cpp
@@ -82,6 +82,9 @@ AddressMapEntry last_write_area;
 AddressMapEntry last_exec_area;
 AddressMapEntry last_ptab_area;
 
+/** Dummy pages for catching writes to physical read-only pages */
+static std::array<uint64_t, 8192 / sizeof(uint64_t)> dummy_page;
+
 /** 601-style block address translation. */
 static BATResult mpc601_block_address_translation(uint32_t la)
 {
@@ -359,9 +362,6 @@ uint32_t tlb_size_mask = TLB_SIZE - 1;
 uint64_t    UnmappedVal = -1ULL;
 TLBEntry    UnmappedMem = {TLB_INVALID_TAG, TLBFlags::PAGE_NOPHYS, 0, 0};
 
-// Dummy page for catching writes to physical read-only pages
-static std::array<uint64_t, 4096 / sizeof(uint64_t)> dummy_page;
-
 uint8_t     CurITLBMode = {0xFF}; // current ITLB mode
 uint8_t     CurDTLBMode = {0xFF}; // current DTLB mode