X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxinterpreter.c;h=e59f93d8c33e29065ce78074c15340bbeb522943;hb=e3d555e0f3578b4e317f9739a715744cbe1a8395;hp=cf3de7985a3df639a4644e02bfdcd2151a31edf0;hpb=b1ba08510c208685fda8a0a2d0e2b72d98db23b1;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxinterpreter.c b/libpcsxcore/psxinterpreter.c
index cf3de798..e59f93d8 100644
--- a/libpcsxcore/psxinterpreter.c
+++ b/libpcsxcore/psxinterpreter.c
@@ -501,14 +501,27 @@ void psxSLTU() 	{ if (!_Rd_) return; _rRd_ = _u32(_rRs_) < _u32(_rRt_); }	// Rd
 * Format:  OP rs, rt                                     *
 *********************************************************/
 void psxDIV() {
-	if (_i32(_rRt_) != 0) {
-		_i32(_rLo_) = _i32(_rRs_) / _i32(_rRt_);
-		_i32(_rHi_) = _i32(_rRs_) % _i32(_rRt_);
-	}
-	else {
-		_i32(_rLo_) = _i32(_rRs_) >= 0 ? 0xffffffff : 1;
-		_i32(_rHi_) = _i32(_rRs_);
-	}
+    if (!_i32(_rRt_)) {
+        _i32(_rHi_) = _i32(_rRs_);
+        if (_i32(_rRs_) & 0x80000000) {
+            _i32(_rLo_) = 1;
+        } else {
+            _i32(_rLo_) = 0xFFFFFFFF;
+        }
+/*
+ * Notaz said that this was "not needed" for ARM platforms and could slow it down so let's disable for ARM. 
+ * This fixes a crash issue that can happen when running Amidog's CPU test.
+ * (It still stays stuck to a black screen but at least it doesn't crash anymore)
+ */
+#if !defined(__arm__) && !defined(__aarch64__)
+    } else if (_i32(_rRs_) == 0x80000000 && _i32(_rRt_) == 0xFFFFFFFF) {
+        _i32(_rLo_) = 0x80000000;
+        _i32(_rHi_) = 0;
+#endif
+    } else {
+        _i32(_rLo_) = _i32(_rRs_) / _i32(_rRt_);
+        _i32(_rHi_) = _i32(_rRs_) % _i32(_rRt_);
+    }
 }
 
 void psxDIVU() {
@@ -842,7 +855,13 @@ void psxBASIC(struct psxCP2Regs *regs) {
 
 void psxHLE() {
 //	psxHLEt[psxRegs.code & 0xffff]();
-	psxHLEt[psxRegs.code & 0x07]();		// HDHOSHY experimental patch
+//	psxHLEt[psxRegs.code & 0x07]();		// HDHOSHY experimental patch
+    uint32_t hleCode = psxRegs.code & 0x03ffffff;
+    if (hleCode >= (sizeof(psxHLEt) / sizeof(psxHLEt[0]))) {
+        psxNULL();
+    } else {
+        psxHLEt[hleCode]();
+    }
 }
 
 void (*psxBSC[64])() = {