Only search on first invocation of ResetIopSpecial

ps2homebrew · Jun 21, 2021 · d537457 · d537457
1 parent 6f673c2
commit d537457
Showing 1 changed file with 13 additions and 6 deletions.
diff --git a/ee_core/src/iopmgr.c b/ee_core/src/iopmgr.c
@@ -17,6 +17,8 @@
 #include "syshook.h"
 
 extern int _iop_reboot_count;
+static int imgdrv_offset_ioprpimg = 0;
+static int imgdrv_offset_ioprpsiz = 0;
 
 static void ResetIopSpecial(const char *args, unsigned int arglen)
 {
@@ -45,15 +47,20 @@ static void ResetIopSpecial(const char *args, unsigned int arglen)
 
     CopyToIop(IOPRP_img, length_rounded, pIOP_buffer);
 
-    for (i = 0; i < size_imgdrv_irx; i += 4) {
-        if (*(u32 *)((&((unsigned char *)imgdrv_irx)[i])) == 0xDEC1DEC1) {
-            *(void **)(UNCACHED_SEG(&((unsigned char *)imgdrv_irx)[i])) = pIOP_buffer;
-        }
-        if (*(u32 *)((&((unsigned char *)imgdrv_irx)[i])) == 0xDEC2DEC2) {
-            *(u32 *)(UNCACHED_SEG(&((unsigned char *)imgdrv_irx)[i])) = size_IOPRP_img;
+    if (imgdrv_offset_ioprpimg == 0 || imgdrv_offset_ioprpsiz == 0) {
+        for (i = 0; i < size_imgdrv_irx; i += 4) {
+            if (*(u32 *)((&((unsigned char *)imgdrv_irx)[i])) == 0xDEC1DEC1) {
+                imgdrv_offset_ioprpimg = i;
+            }
+            if (*(u32 *)((&((unsigned char *)imgdrv_irx)[i])) == 0xDEC2DEC2) {
+                imgdrv_offset_ioprpsiz = i;
+            }
         }
     }
 
+    *(void **)(UNCACHED_SEG(&((unsigned char *)imgdrv_irx)[imgdrv_offset_ioprpimg])) = pIOP_buffer;
+    *(u32 *)(UNCACHED_SEG(&((unsigned char *)imgdrv_irx)[imgdrv_offset_ioprpsiz])) = size_IOPRP_img;
+
     LoadMemModule(0, imgdrv_irx, size_imgdrv_irx, 0, NULL);
 
     DIntr();