From 8ce539f85e3142911d299e58b3874f9e612bf274 Mon Sep 17 00:00:00 2001
From: Anthony Pesch <inolen@gmail.com>
Date: Mon, 20 Nov 2017 20:43:51 -0500
Subject: [PATCH] more hacks

---
 src/guest/sh4/sh4_ccn.c            | 6 ++++++
 src/jit/backend/x64/x64_backend.cc | 5 +++++
 src/jit/jit.c                      | 8 +++++---
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/src/guest/sh4/sh4_ccn.c b/src/guest/sh4/sh4_ccn.c
index e38155b8..3bf961a2 100644
--- a/src/guest/sh4/sh4_ccn.c
+++ b/src/guest/sh4/sh4_ccn.c
@@ -29,9 +29,15 @@ static void sh4_ccn_reset(struct sh4 *sh4) {
   jit_invalidate_code(sh4->jit);
 }
 
+extern int sh4_ccn_pref_hack;
+
 void sh4_ccn_pref(struct sh4 *sh4, uint32_t addr) {
   struct memory *mem = sh4->dc->mem;
 
+  if (sh4_ccn_pref_hack) {
+    LOG_INFO("sh4_ccn_pref addr=0x%08x", addr);
+  }
+
   /* make sure this is a sq related prefetch */
   DCHECK(addr >= 0xe0000000 && addr <= 0xe3ffffff);
 
diff --git a/src/jit/backend/x64/x64_backend.cc b/src/jit/backend/x64/x64_backend.cc
index f5e1e46c..eb587630 100644
--- a/src/jit/backend/x64/x64_backend.cc
+++ b/src/jit/backend/x64/x64_backend.cc
@@ -625,6 +625,9 @@ static void x64_backend_emit_prolog(struct x64_backend *backend, struct ir *ir,
   e.add(e.dword[guestctx + guest->offset_instrs], num_instrs);
 }
 
+extern int lse_hack_enable;
+extern int sh4_ccn_pref_hack;
+
 static void x64_backend_emit(struct x64_backend *backend, struct ir *ir,
                              jit_emit_cb emit_cb, void *emit_data) {
   auto &e = *backend->codegen;
@@ -633,6 +636,8 @@ static void x64_backend_emit(struct x64_backend *backend, struct ir *ir,
 
   e.inLocalLabel();
 
+  e.mov(e.dword[&sh4_ccn_pref_hack], lse_hack_enable);
+
   list_for_each_entry(block, &ir->blocks, struct ir_block, it) {
     int first = 1;
     uint8_t *block_addr = e.getCurr<uint8_t *>();
diff --git a/src/jit/jit.c b/src/jit/jit.c
index 4801db67..c5273911 100644
--- a/src/jit/jit.c
+++ b/src/jit/jit.c
@@ -321,6 +321,7 @@ static void jit_promote_fastmem(struct jit *jit, struct jit_block *block,
 
 int lse_hack_enable;
 int lse_hack_count;
+int sh4_ccn_pref_hack;
 
 void jit_compile_code(struct jit *jit, uint32_t guest_addr) {
 #if 0
@@ -350,10 +351,14 @@ void jit_compile_code(struct jit *jit, uint32_t guest_addr) {
     jit_free_block(jit, existing);
   }
 
+  lse_hack_enable = guest_addr == 0x8c083726;
+  lse_hack_count = 0;
+
   /* translate guest code into ir */
   struct ir ir = {0};
   ir.buffer = jit->ir_buffer;
   ir.capacity = sizeof(jit->ir_buffer);
+
   jit->frontend->translate_code(jit->frontend, guest_addr, guest_size, &ir);
 
   /* dump raw ir */
@@ -365,9 +370,6 @@ void jit_compile_code(struct jit *jit, uint32_t guest_addr) {
   jit_promote_fastmem(jit, block, &ir);
   cfa_run(jit->cfa, &ir);
 
-  lse_hack_enable = guest_addr == 0x8c0664c6;
-  lse_hack_count = 0;
-
   static const uint32_t test[] = {
     0x0,
   };