From: notaz <notasas@gmail.com>
Date: Sat, 25 Jun 2011 17:09:44 +0000 (+0300)
Subject: psxinterpreter: fix division by zero
X-Git-Tag: r9~58
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7a56f4f574167acc7e3751cf04aa9bf9ebba913;p=pcsx_rearmed.git

psxinterpreter: fix division by zero

Based on info from Ryphecha.
---

diff --git a/libpcsxcore/psxinterpreter.c b/libpcsxcore/psxinterpreter.c
index f1712050..8eb4749d 100644
--- a/libpcsxcore/psxinterpreter.c
+++ b/libpcsxcore/psxinterpreter.c
@@ -504,6 +504,10 @@ void psxDIV() {
 		_i32(_rLo_) = _i32(_rRs_) / _i32(_rRt_);
 		_i32(_rHi_) = _i32(_rRs_) % _i32(_rRt_);
 	}
+	else {
+		_i32(_rLo_) = _i32(_rRs_) >= 0 ? 0xffffffff : 1;
+		_i32(_rHi_) = _i32(_rRs_);
+	}
 }
 
 void psxDIVU() {
@@ -511,6 +515,10 @@ void psxDIVU() {
 		_rLo_ = _rRs_ / _rRt_;
 		_rHi_ = _rRs_ % _rRt_;
 	}
+	else {
+		_i32(_rLo_) = 0xffffffff;
+		_i32(_rHi_) = _i32(_rRs_);
+	}
 }
 
 void psxMULT() {