DIV_VF: make it slightly more correct (but slower).

We really should divide three times separately than compute the
reciprocal and multiply by that three times.

The latter allows two roundoff errors, the former only one.

diff --git a/prvm_execprogram.h b/prvm_execprogram.h
index 2eb0c29878e7eda3cdde9f6f27480346bf6f6b84..b26c6db2e891d3c7211c2177823a310d70584003 100644 (file)
--- a/prvm_execprogram.h
+++ b/prvm_execprogram.h
@@ -886,10 +886,10 @@ prvm_eval_t *src;
                        HANDLE_OPCODE(OP_DIV_VF):
                                if( OPB->_float != 0.0f )
                                {
-                                       float temp = 1.0f / OPB->_float;
-                                       OPC->vector[0] = temp * OPA->vector[0];
-                                       OPC->vector[1] = temp * OPA->vector[1];
-                                       OPC->vector[2] = temp * OPA->vector[2];
+                                       tempfloat = OPB->_float;
+                                       OPC->vector[0] = OPA->vector[0] / tempfloat;
+                                       OPC->vector[1] = OPA->vector[1] / tempfloat;
+                                       OPC->vector[2] = OPA->vector[2] / tempfloat;
                                }
                                else
                                {