From c4b57774f0b4794ad22e3e8c9fb4be760431b64e Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Thu, 2 Mar 2023 19:38:23 +0100
Subject: [DYNAREC] Finetuned the jump table memory allocation

---
 src/include/box64context.h |  1 -
 src/include/custommem.h    | 13 +++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/box64context.h b/src/include/box64context.h
index c8360017..3e55ff44 100755
--- a/src/include/box64context.h
+++ b/src/include/box64context.h
@@ -33,7 +33,6 @@ typedef struct mmaplist_s       mmaplist_t;
 typedef struct kh_dynablocks_s  kh_dynablocks_t;
 #endif
 #define DYNAMAP_SHIFT 16
-#define JMPTABL_SHIFT 16
 
 typedef void* (*procaddess_t)(const char* name);
 typedef void* (*vkprocaddess_t)(void* instance, const char* name);
diff --git a/src/include/custommem.h b/src/include/custommem.h
index acea9e21..b1645133 100644
--- a/src/include/custommem.h
+++ b/src/include/custommem.h
@@ -34,6 +34,19 @@ int isJumpTableDefault64(void* addr);
 uintptr_t getJumpTable64();
 uintptr_t getJumpTableAddress64(uintptr_t addr);
 uintptr_t getJumpAddress64(uintptr_t addr);
+
+#define JMPTABL_SHIFT3 18
+#define JMPTABL_SHIFT2 18
+#define JMPTABL_SHIFT1 18
+#define JMPTABL_SHIFT0 10
+#define JMPTABL_START3 (JMPTABL_SHIFT0+JMPTABL_SHIFT1+JMPTABL_SHIFT2)
+#define JMPTABL_START2 (JMPTABL_SHIFT0+JMPTABL_SHIFT1)
+#define JMPTABL_START1 (JMPTABL_SHIFT0)
+#define JMPTABL_START0 0
+#define JMPTABLE_MASK3 ((1<<JMPTABL_SHIFT3)-1)
+#define JMPTABLE_MASK2 ((1<<JMPTABL_SHIFT2)-1)
+#define JMPTABLE_MASK1 ((1<<JMPTABL_SHIFT1)-1)
+#define JMPTABLE_MASK0 ((1<<JMPTABL_SHIFT0)-1)
 #endif
 
 #define PROT_DYNAREC    0x80
-- 
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