| GuanXuetao | d9bc157 | 2011-01-15 18:21:31 +0800 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/unicore32/include/asm/fpu-ucf64.h |
| 3 | * |
| 4 | * Code specific to PKUnity SoC and UniCore ISA |
| 5 | * |
| 6 | * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn> |
| 7 | * Copyright (C) 2001-2010 Guan Xuetao |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
| 12 | */ |
| 13 | #define FPSCR s31 |
| 14 | |
| 15 | /* FPSCR bits */ |
| 16 | #define FPSCR_DEFAULT_NAN (1<<25) |
| 17 | |
| 18 | #define FPSCR_CMPINSTR_BIT (1<<31) |
| 19 | |
| 20 | #define FPSCR_CON (1<<29) |
| 21 | #define FPSCR_TRAP (1<<27) |
| 22 | |
| 23 | /* RND mode */ |
| 24 | #define FPSCR_ROUND_NEAREST (0<<0) |
| 25 | #define FPSCR_ROUND_PLUSINF (2<<0) |
| 26 | #define FPSCR_ROUND_MINUSINF (3<<0) |
| 27 | #define FPSCR_ROUND_TOZERO (1<<0) |
| 28 | #define FPSCR_RMODE_BIT (0) |
| 29 | #define FPSCR_RMODE_MASK (7 << FPSCR_RMODE_BIT) |
| 30 | |
| 31 | /* trap enable */ |
| 32 | #define FPSCR_IOE (1<<16) |
| 33 | #define FPSCR_OFE (1<<14) |
| 34 | #define FPSCR_UFE (1<<13) |
| 35 | #define FPSCR_IXE (1<<12) |
| 36 | #define FPSCR_HIE (1<<11) |
| 37 | #define FPSCR_NDE (1<<10) /* non denomal */ |
| 38 | |
| 39 | /* flags */ |
| 40 | #define FPSCR_IDC (1<<24) |
| 41 | #define FPSCR_HIC (1<<23) |
| 42 | #define FPSCR_IXC (1<<22) |
| 43 | #define FPSCR_OFC (1<<21) |
| 44 | #define FPSCR_UFC (1<<20) |
| 45 | #define FPSCR_IOC (1<<19) |
| 46 | |
| 47 | /* stick bits */ |
| 48 | #define FPSCR_IOS (1<<9) |
| 49 | #define FPSCR_OFS (1<<7) |
| 50 | #define FPSCR_UFS (1<<6) |
| 51 | #define FPSCR_IXS (1<<5) |
| 52 | #define FPSCR_HIS (1<<4) |
| 53 | #define FPSCR_NDS (1<<3) /*non denomal */ |