X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxinterpreter.c;h=e904cee6fefce269abbe9dac3304ec7557f1fd21;hb=9abd586c96e8a2e37e92b620c70668a57d6f89f7;hp=ff4949133ff5aaa91ea53165d67681a80966ee98;hpb=48e74ef5e10804f8809fae397be4234e8bf613a7;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxinterpreter.c b/libpcsxcore/psxinterpreter.c
index ff494913..e904cee6 100644
--- a/libpcsxcore/psxinterpreter.c
+++ b/libpcsxcore/psxinterpreter.c
@@ -39,6 +39,14 @@ static u32 branchPC;
 #define debugI()
 #endif
 
+#ifndef NDEBUG
+#include "debug.h"
+#else
+void StartDebugger() {}
+void ProcessDebug() {}
+void StopDebugger() {}
+#endif
+
 void execI();
 
 // Subsets
@@ -501,14 +509,20 @@ 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;
+        }
+    } else if (_i32(_rRs_) == 0x80000000 && _i32(_rRt_) == 0xFFFFFFFF) {
+        _i32(_rLo_) = 0x80000000;
+        _i32(_rHi_) = 0;
+    } else {
+        _i32(_rLo_) = _i32(_rRs_) / _i32(_rRt_);
+        _i32(_rHi_) = _i32(_rRs_) % _i32(_rRt_);
+    }
 }
 
 void psxDIVU() {
@@ -727,9 +741,9 @@ void psxLWR() {
 	*/
 }
 
-void psxSB() { psxMemWrite8 (_oB_, _u8 (_rRt_)); }
-void psxSH() { psxMemWrite16(_oB_, _u16(_rRt_)); }
-void psxSW() { psxMemWrite32(_oB_, _u32(_rRt_)); }
+void psxSB() { psxMemWrite8 (_oB_, _rRt_ &   0xff); }
+void psxSH() { psxMemWrite16(_oB_, _rRt_ & 0xffff); }
+void psxSW() { psxMemWrite32(_oB_, _rRt_); }
 
 u32 SWL_MASK[4] = { 0xffffff00, 0xffff0000, 0xff000000, 0 };
 u32 SWL_SHIFT[4] = { 24, 16, 8, 0 };