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Diffstat (limited to 'doc/testfloat.html')
| -rw-r--r-- | doc/testfloat.html | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/doc/testfloat.html b/doc/testfloat.html index bb97669..8d8177f 100644 --- a/doc/testfloat.html +++ b/doc/testfloat.html @@ -7,11 +7,11 @@ <BODY> -<H1>Berkeley TestFloat Release 3a: <CODE>testfloat</CODE></H1> +<H1>Berkeley TestFloat Release 3b: <CODE>testfloat</CODE></H1> <P> John R. Hauser<BR> -2015 October 23<BR> +2016 July 22<BR> </P> @@ -121,6 +121,19 @@ The set of testable operations is just the set of operations that this build of <CODE>testfloat</CODE> has some way to invoke for testing. </P> +<H3><CODE>-seed <num></CODE></H3> + +<P> +The <CODE>-seed</CODE> option sets the seed for the pseudo-random number +generator used for generating test cases. +The argument to <CODE>-seed</CODE> is a nonnegative integer. +Executing the same compiled <CODE>testfloat</CODE> program with the same +arguments (including the same pseudo-random number seed) should always perform +the same sequence of tests, whereas changing the pseudo-random number seed +should result in a different sequence of tests. +The default seed number <NOBR>is 1</NOBR>. +</P> + <H3><CODE>-level <num></CODE></H3> <P> @@ -175,7 +188,8 @@ The <CODE>-checkNaNs</CODE> option causes <CODE>testfloat</CODE> to verify the bitwise correctness of NaN results. In order for this option to be sensible, <CODE>testfloat</CODE> must have been compiled so that its internal reference implementation of floating-point -(SoftFloat) generates the proper NaN results for the system being tested. +(Berkeley SoftFloat) generates the proper NaN results for the system being +tested. </P> <H3><CODE>-precision32, -precision64, -precision80</CODE></H3> @@ -235,7 +249,7 @@ Just as <CODE>testfloat</CODE> can test an operation for all five rounding modes in sequence, multiple operations can be tested with a single execution of <CODE>testfloat</CODE>. Two sets are recognized: <CODE>-all1</CODE> and <CODE>-all2</CODE>. -The set <CODE>-all1</CODE> comprises all one-operand operations, while +The set <CODE>-all1</CODE> is all one-operand operations, while <CODE>-all2</CODE> is all two-operand operations. A function set is used in place of an operation name in the <CODE>testfloat</CODE> command line, such as |