7a934a8506
- Rewritten to use SoftFloat instead of unportable native FP math - Support added for Motorola 96-bit extended floats - More addressing modes and conditions supported The taitojc games function identically to the old implementation (I stepped through the main matrix multiply in dendeg and the registers never diverged) and speed on Core 2 Duo is a wash - sometimes softfloat's faster, sometimes not, but the difference on -str 90 never exceeded 1%.
42 lines
2.2 KiB
C
42 lines
2.2 KiB
C
|
|
/*============================================================================
|
|
|
|
This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic
|
|
Package, Release 2b.
|
|
|
|
Written by John R. Hauser. This work was made possible in part by the
|
|
International Computer Science Institute, located at Suite 600, 1947 Center
|
|
Street, Berkeley, California 94704. Funding was partially provided by the
|
|
National Science Foundation under grant MIP-9311980. The original version
|
|
of this code was written as part of a project to build a fixed-point vector
|
|
processor in collaboration with the University of California at Berkeley,
|
|
overseen by Profs. Nelson Morgan and John Wawrzynek. More information
|
|
is available through the Web page `http://www.cs.berkeley.edu/~jhauser/
|
|
arithmetic/SoftFloat.html'.
|
|
|
|
THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has
|
|
been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES
|
|
RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS
|
|
AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES,
|
|
COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
|
|
EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
|
|
INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
|
|
OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
|
|
|
|
Derivative works are acceptable, even for commercial purposes, so long as
|
|
(1) the source code for the derivative work includes prominent notice that
|
|
the work is derivative, and (2) the source code includes prominent notice with
|
|
these four paragraphs for those parts of this code that are retained.
|
|
|
|
=============================================================================*/
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Include common integer types and flags.
|
|
*----------------------------------------------------------------------------*/
|
|
#include "mamesf.h"
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Symbolic Boolean literals.
|
|
*----------------------------------------------------------------------------*/
|
|
#define FALSE 0
|
|
#define TRUE 1
|