X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxinterpreter.c;h=cf3de7985a3df639a4644e02bfdcd2151a31edf0;hp=66730d975031cd06c921bfbd7677e7e5c8e39a05;hb=b1ba08510c208685fda8a0a2d0e2b72d98db23b1;hpb=6c0eefafd3a531d6bc6d26736926a1514c0c9e6f

diff --git a/libpcsxcore/psxinterpreter.c b/libpcsxcore/psxinterpreter.c
index 66730d97..cf3de798 100644
--- a/libpcsxcore/psxinterpreter.c
+++ b/libpcsxcore/psxinterpreter.c
@@ -727,9 +727,9 @@ 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 };
@@ -780,10 +780,9 @@ void psxMFC0() { if (!_Rt_) return; _i32(_rRt_) = (int)_rFs_; }
 void psxCFC0() { if (!_Rt_) return; _i32(_rRt_) = (int)_rFs_; }
 
 void psxTestSWInts() {
-	// the next code is untested, if u know please
-	// tell me if it works ok or not (linuzappz)
 	if (psxRegs.CP0.n.Cause & psxRegs.CP0.n.Status & 0x0300 &&
-		psxRegs.CP0.n.Status & 0x1) {
+	   psxRegs.CP0.n.Status & 0x1) {
+		psxRegs.CP0.n.Cause &= ~0x7c;
 		psxException(psxRegs.CP0.n.Cause, branch);
 	}
 }
@@ -797,7 +796,8 @@ void MTC0(int reg, u32 val) {
 			break;
 
 		case 13: // Cause
-			psxRegs.CP0.n.Cause = val & ~(0xfc00);
+			psxRegs.CP0.n.Cause &= ~0x0300;
+			psxRegs.CP0.n.Cause |= val & 0x0300;
 			psxTestSWInts();
 			break;