Introduce BOX64_CPUTYPE to choose emulating Intel or AMD cpus (no AMD…

… specific extension yet)
ptitSeb · Dec 27, 2024 · a54f516 · a54f516
1 parent 26ba114
commit a54f516
Show file tree

Hide file tree

Showing 4 changed files with 328 additions and 123 deletions.
diff --git a/src/core.c b/src/core.c
@@ -64,6 +64,7 @@ path_collection_t box64_addlibs = {0};
 int box64_maxcpu = 0;
 int box64_maxcpu_immutable = 0;
 int box64_is32bits = 0;
+int box64_cputype = 0;
 #if defined(SD845) || defined(SD888) || defined(SD8G2) || defined(TEGRAX1)
 int box64_mmap32 = 1;
 #else
@@ -1308,6 +1309,14 @@ void LoadLogEnv()
         else
             printf_log(LOG_INFO, "Will not use 32bits address in priority for external MMAP (when 32bits process are detected)\n");
     }
+    p = getenv("BOX64_CPUTYPE");
+        if(p) {
+        if(strlen(p)==1) {
+            if(p[0]>='0' && p[0]<='0'+1)
+                box64_cputype = p[0]-'0';
+        }
+        printf_log(LOG_INFO, "Will emulate an %s CPU\n", box64_cputype?"AMD":"Intel");
+    }
     p = getenv("BOX64_IGNOREINT3");
         if(p) {
         if(strlen(p)==1) {

diff --git a/src/include/debug.h b/src/include/debug.h
@@ -19,6 +19,7 @@ extern uint8_t box64_rdtsc_shift;
 extern int box64_is32bits;
 extern int box64_x11sync;
 extern int box64_dynarec_gdbjit;
+extern int box64_cputype;
 #ifdef DYNAREC
 extern int box64_dynarec_dump;
 extern int box64_dynarec_trace;