Return to status_w.h CVS log

Up to [MW Coherent from dump] / coherent / b / kernel / emulator

Annotation of coherent/b/kernel/emulator/status_w.h, revision 1.1.1.1

1.1       root        1: /*---------------------------------------------------------------------------+
                      2:  |  status_w.h                                                               |
                      3:  |                                                                           |
                      4:  | Copyright (C) 1992    W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      |
                      5:  |                       Australia.  E-mail [email protected]    |
                      6:  |                                                                           |
                      7:  +---------------------------------------------------------------------------*/
                      8: 
                      9: #ifndef _STATUS_H_
                     10: #define _STATUS_H_
                     11: 
                     12: 
                     13: #ifdef __ASSEMBLER__
                     14: #define        Const__(x)      $##x
                     15: #else
                     16: #define        Const__(x)      x
                     17: #endif
                     18: 
                     19: #define SW_B           Const__(0x8000) /* backward compatibility (=ES) */
                     20: #define SW_C3          Const__(0x4000) /* condition bit 3 */
                     21: #define SW_TOP         Const__(0x3800) /* top of stack */
                     22: #define SW_TOPS        Const__(11)     /* shift for top of stack bits */
                     23: #define SW_C2          Const__(0x0400) /* condition bit 2 */
                     24: #define SW_C1          Const__(0x0200) /* condition bit 1 */
                     25: #define SW_C0          Const__(0x0100) /* condition bit 0 */
                     26: #define SW_ES          Const__(0x0080) /* exception summary */
                     27: #define SW_SF          Const__(0x0040) /* stack fault */
                     28: #define SW_PE          Const__(0x0020) /* loss of precision */
                     29: #define SW_UE          Const__(0x0010) /* underflow */
                     30: #define SW_OE          Const__(0x0008) /* overflow */
                     31: #define SW_ZE          Const__(0x0004) /* divide by zero */
                     32: #define SW_DE          Const__(0x0002) /* denormalized operand */
                     33: #define SW_IE          Const__(0x0001) /* invalid operation */
                     34: 
                     35: 
                     36: #ifndef __ASSEMBLER__
                     37: 
                     38: #define COMP_A_GT_B    1
                     39: #define COMP_A_EQ_B    2
                     40: #define COMP_A_LT_B    3
                     41: #define COMP_NOCOMP    4
                     42: #define COMP_NAN       0x40
                     43: #define COMP_SNAN      0x80
                     44: 
                     45: #define setcc(cc) ({ \
                     46:   status_word &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
                     47:   status_word |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })
                     48: 
                     49: #endif __ASSEMBLER__
                     50: 
                     51: #endif _STATUS_H_

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.